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Moduladores de los receptores de progesterona para la endometriosis

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Referencias

References to studies included in this review

Bromham 1995 {published data only}

Bromham DR, Booker MW, Rose GL, Wardle PG, Newton JR. A multicentre comparative study of gestrinone and danazol in the treatment of endometriosis. Journal of Obstetrics and Gynaecology 1995;15:188‐94. CENTRAL
Bromham DR, Booker MW, Rose GL, Wardle PG, Newton JR. Updating the clinical experience in endometriosis ‐ the European perspective. British Journal of Obstetrics and Gynaecology 1995;102 Suppl 12:12‐6. CENTRAL

Carbonell 2012 {published data only}

Carbonell JL, Perera O, Riveron AM, Giuseppe JG. Treatment with 5 mg or 25 mg of mifepristone daily for six months. A randomized double‐blind study [Tratamiento de la endometriosis con 5 mg o 25 mg diariosde mifepristona durante 6 meses. Ensayo clı ´nico aleatorizado,doble ciego]. Progresos de Obstetricia y Ginecologia 2012;55(2):51‐9. CENTRAL

Carbonell 2016 {published data only}

Carbonell JL, Riveron AM, Leonard Y, González J, Heredia B, Sánchez C. Mifepristone 2.5, 5, 10 mg versus placebo in the treatment of endometriosis. Journal of Reproductive Health and Medicine 2016;2:17‐25. CENTRAL

Chwalisz 2004 {published data only}

Chwalisz K, Perez MC, Demanno D, Winkel C, Schubert G, Elger W. Treatment of endometriosis with the novel selective progesterone receptor modulator (SPRM) asoprisnil. Fertility and Sterility 2004;82(Suppl 2):S83‐4. CENTRAL

Dawood 1997 {published data only}

Dawood MY, Obasiolu CW, Ramos J, Khan‐Dawood FS. Clinical, endocrine, and metabolic effects of two doses of gestrinone in treatment of pelvic endometriosis. American Journal of Obstetrics and Gynecology 1997;176(2):387‐94. CENTRAL

Fedele 1989 {published data only}

Fedele L, Arcaini L, Bianchi S, Viezzoli T, Arcaini L, Candiani GB. Gestrinone versus danazol in the treatment of endometriosis. Fertility and Sterility 1989;51:781‐5. CENTRAL

GISG 1996 {published data only}

Gestrinone Italian Study Group. Gestrinone versus a gonadotropin releasing hormone agonist for the treatment of pelvic pain associated with endometriosis: a multicenter, randomised, double‐blind study. Fertility and Sterility 1996;66:911‐9. CENTRAL

Hornstein 1990 {published data only}

Hornstein MD, Glaeson RE, Barbieri RL. A randomised, double‐blind prospective trial of two doses of gestrinone in the treatment of endometriosis. Fertility and Sterility 1990;53:237‐41. CENTRAL

Spitz 2009 {published data only}

Spitz IM. Clinical utility of progesterone receptor modulators and their effect on the endometrium. Current Opinion in Obstetrics and Gynecology 2009;21:318‐24. CENTRAL
Spitz IM, Wiehle RD, Van AA. Progesterone receptor modulators in endometriosis: a new therapeutic option. In: Garcia‐Velasco J, Rizk B editor(s). Textbook of Endometriosis. India: Jaypee Brothers Medical Publishers Ltd, 2009. CENTRAL

Worthington 1993 {published data only}

Worthington M, Irvine LM, Crook D, Lees B, Shaw RW, Stevenson JC. A randomized comparative study of the metabolic effects of two regimens of gestrinone in the treatment of endometriosis. Fertility and Sterility 1993;59(3):522‐6. CENTRAL

References to studies excluded from this review

Bulun 2016 {unpublished data only}

Bulun S. Ulipristal for endometriosis‐related pelvic pain. ClinicalTrials.gov Identifier:NCT02213081 This study is ongoing but is not recruiting participants. CENTRAL

Kettel 1996 {published data only}

Kettel L, Murphy A, Morales A, Ulmann A, Baulieu EE, Yen SS. Treatment of endometriosis with the antiprogesterone mifepristone (RU486). Fertility and Sterility 1996;65(1):23‐8. CENTRAL

Kettel 1998 {published data only}

Kettel LM, Murphy AA, Morales AJ, Yen SS. Preliminary report on the treatment of endometriosis with low dose mifepristone (RU 486). American Journal of Obstetrics and Gynecology 1998;178:1151‐6.. CENTRAL

Mettler 1987 {published data only}

Mettler L, Semm K. Three‐step therapy of genital endometriosis in cases of human infertility with lynestrenol, danazol or gestrinone administration in the second step. In: Raynaud JP editor(s). Medical Management of Endometriosis. New York: Raven Press, 1984:33‐47. CENTRAL

Nieto 1996 {published data only}

Nieto A, Tacuri C, Serra M, Keller J, Cortes‐Prieto J. Long term follow‐up of endometriosis after two different therapies (gestrinone and buserelin). Clinical & Experimental Obstetrics and Gynecology 1996;23:199‐203. CENTRAL

Nobel 1980 {published data only}

Noble AD, Letchworth AT. Treatment of endometriosis: a study of medical management. British Journal of Obstetrics and Gynaecology 1980;87:726‐8. CENTRAL

Thomas 1987 {published data only}

Thomas EJ, Cooke ID. Impact of gestrinone on the course of asymptomatic endometriosis. British Medical Journal 1987;294:272‐4. CENTRAL

Yang 2006 {published data only}

Yang D, Ma W, Qu F, Ma B. Comparative study of Yiweining and gestrinone for post‐operational treatment of stage 3 endometriosis. Chinese Journal of Integrative Medicine 2006;12(3):218‐20. CENTRAL

Zhang 2016 {published data only}

Zhang YX. Effect of mifepristone in the different treatments of endometriosis. Clinical & Experimental Obstetrics and Gynecology 2016;43(3):350‐3. CENTRAL

Additional references

Berek 2007

Berek JS. Endometriosis. Berek & Novak's Gynecology. 14. Baltimore, MD: Lippincott Williams & Wilkins, 2007.

Bouchard 2011

Bouchard P, Chabbert BN, Fauser BC. Selective progesterone receptor modulators in reproductive medicine: pharmacology, clinical efficacy and safety. Fertility and Sterility 2011;96:1175‐89.

Brenner 2002

Brenner RM, Slayden OD, Critchley HO. Anti‐proliferative effects of progesterone antagonists in the primate endometrium: a potential role for the androgen receptor. Reproduction 2002;124(2):167‐72.

Brenner 2005

Brenner RM, Slayden OD. Progesterone receptor antagonists and the endometrial antiproliferative effect. Seminars in Reproductive Medicine 2005;23(1):74‐81.

Brown 2002

Brown A, Cheng L, Lin S, Baird DT. Daily low‐dose mifepristone has contraceptive potential by suppressing ovulation and menstruation: a double‐blind randomized control trial of 2 and 5 mg per day for 120 days. Journal of Clinical Endocrinology and Metabolism 2002;87(1):63‐70.

Brown 2014

Brown J, Farquhar C. Endometriosis: an overview of Cochrane Reviews. Cochrane Database of Systematic Reviews 2014;3:Art. No.: CD009590..

Cramer 2002

Cramer D, Missmer S. The epidemiology of endometriosis. Annals of the New York Academy of Sciences 2002;955:11‐22.

Eskenazi 1997

Eskenazi B, Warner M. Epidemiology of endometriosis. Obstetrics and Gynecology Clinics of North America 1997;24:235‐58.

Giudice 2010

Giudice LC. Clinical practice: endometriosis. The New England Journal of Medicine 2010;362(25):2389‐98.

Goldstein 1980

Goldstein DP, deCholnoky C, Emans SJ, Leventhal JM. Laparoscopy in the diagnosis and management of pelvic pain in adolescents. Journal of Reproductive Medicine 1980;24:251‐6.

Higgins 2011

Higgins JPT, Green S (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [updated March 2011]. The Cochrane Collaboration, 2011. www.cochrane‐handbook.org. Wiley.

Koide 1998

Koide S. Mifepristone: auxiliary therapeutic use in cancer and related disorders. Journal of Reproductive Medicine 1998;43:551‐60.

Li 2016

Li W, Li X, Zhang B, Gao C, Chen Y, Jiang Y. Current progresses and trends in the development of progesterone receptor modulators. Current Medicinal Chemistry 2016;23:2507‐54.

Mahutte 2003

Mahutte NG, Arici A. Medical management of endometriosis‐associated pain. Obstetrics & Gynecology Clinics of North America 2003;30:133‐50.

Narvekar 2004

Narvekar N, Cameron S, Critchley HO, Lin S, Cheng L, Baird DT. Low‐dose mifepristone inhibits endometrial proliferation and up‐regulates androgen receptor. Journal of Clinical Endocrinology & Metabolism 2004;89(5):2491‐7.

Neulen 1996

Neulen J, Williams RF, Breckwoldt M, Chwalisz K, Baulieu EE, Hodgen GD. Non‐competitive anti‐oestrogenic actions of progesterone antagonists in primate endometrium: enhancement of oestrogen and progesterone receptors with blockade of post‐receptor proliferative mechanisms. Human Reproduction 1996;11:1533‐7.

Sampson 1927

Sampson J. Peritoneal endometriosis due to menstrual dissemination of endometrial tissue into the pelvic cavity. American Journal of Obstetrics and Gynecology 1927;14:422‐69.

Spitz 2003

Spitz IM. Progesterone antagonists and progesterone receptor modulators: an overview. Steroids 2003;68:981‐93.

Tosti 2016

Tosti C, Biscione A, Morgante G, Bifulco G, Luisi S, Petraglia F. Hormonal therapy for endometriosis: from molecular research to bedside. European Journal of Obstetrics & Gynecology and Reproductive Biology 2016;5:32.

Vercellini 2014

Vercellini P, Viganò P, Somigliana E, Fedele L. Endometriosis: pathogenesis and treatment. Nature Reviews Endocrinology 2014;10:261‐75.

Williams 2007

Williams AR, Critchley HO, Osei J, Ingamells S, Cameron IT, Han C. The effects of the selective progesterone receptor modulator asoprisnil on the morphology of uterine tissues after 3 months treatment in patients with symptomatic uterine leiomyomata. Human Reproduction 2007;22(6):1696‐704.

Characteristics of studies

Characteristics of included studies [ordered by study ID]

Bromham 1995

Methods

Randomised double‐blind multi‐centre study
Method of randomization not described
Pharmaceutical company stated

Participants

269 British women aged 18 to 45 years
Inclusion criteria: endometriosis confirmed by laparoscopy or laparotomy.
Exclusion criteria: requiring surgical excision, serious systemic disease, requiring long‐term treatment, previous failure of danazol treatment, other hormonal treatment within 2 months, unwillingness to use mechanical contraception

Interventions

Gestrinone 2.5 mg twice weekly plus 'dummy' danazol for 6 months (132 women)
Danazol 200 mg bd plus 'dummy' gestrinone for 6 months (137 women)
Duration of treatment: 6 months

Outcomes

AFS scores at laparoscopy after 6 months of treatment
Pain scores during treatment and at 1 year follow‐up
Side effects
Fertility

Notes

Repeat laparoscopy 23 days (median) after cessation of treatment
Follow‐up: 12 months

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Unclear risk

Allocated at random, no other details

Allocation concealment (selection bias)

Unclear risk

Unclear, no details

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

Double‐blind', 'double‐dummy'. Participants received 2 identical tablets
Study authors state that participants were blinded but do not reveal who else was blinded

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

High risk

A total of 15 participants from the gestrinone group, including 4 with hirsutism, and 17 participants from the danazol group, including 6 with headache, withdrew because of adverse symptoms. An additional 22 participants, including 10 from the gestrinone group and 12 from the danazol group, withdrew because of lack of efficacy, pregnancy, elevated hepatic function tests, or reasons unrelated to the trial (19% attrition rate for efficacy outcomes)

Selective reporting (reporting bias)

Low risk

Includes main outcomes and side effects

Other bias

Low risk

No other specific source of bias detected

Carbonell 2012

Methods

Randomised double‐blind study
Method of randomization described
Pharmaceutical company stated

Participants

26 women
Inclusion criteria: endometriosis confirmed by laparoscopy

Interventions

Group I received 1 tablet of 25 mg mifepristone daily

Group II received 1 tablet of 5 mg mifepristone daily
Duration of treatment: 6 months

Outcomes

AFS scores at laparoscopy after 6 months of treatment
Pain scores during treatment

Side effects

Notes

Laparoscopy and endometrial biopsy were performed before and after treatment

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

Used a random list

Allocation concealment (selection bias)

Low risk

Applied opaque sealed envelopes that contained a card indicating the treatment group to which the participant was assigned

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

Double‐blind

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Low risk

All women completed 6 months of treatment

Selective reporting (reporting bias)

Low risk

Reports main review outcomes

Other bias

Unclear risk

No other specific source of bias detected

Carbonell 2016

Methods

Randomised double‐blind study
Method of randomization described
Pharmaceutical company stated

Participants

360 women
Inclusion criteria: endometriosis confirmed by laparoscopy

Interventions

Group I received 1 tablet of 2.5 mg mifepristone daily for 6 months (90 women)

Group II received 1 tablet of 5 mg mifepristone daily for 6 months (90 women)

Group III received 1 tablet of 10 mg mifepristone daily for 6 months (90 women)

Group IV received 1 tablet of placebo daily for 3 months (90 women)

Outcomes

AFS scores at laparoscopy after 6 months of treatment
Pain scores during treatment

Side effects

Notes

Laparoscopy and endometrial biopsy were performed before and after treatment

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

Used a random list obtained from the MEDSTAT 2.1 programme

Allocation concealment (selection bias)

Low risk

Applied opaque sealed envelopes that contained a card indicating the treatment group to which the participant was assigned

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

Double‐blind

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Low risk

All women in treatment group completed 6 months of treatment, and placebo group finished 3 months of treatment

Selective reporting (reporting bias)

Low risk

Includes main outcomes

Other bias

Low risk

No other specific source of bias detected

Chwalisz 2004

Methods

Multi‐centre double‐blind placebo‐controlled parallel‐group study

Participants

130 women

Interventions

Asoprisnil 5 mg (n = 31), 10 mg (n = 33), 25 mg (n = 32), or placebo (n = 34) was administered orally once daily for 12 weeks

Outcomes

Pain scores during treatment and at 1 year follow‐up
Side effects, serum E2

Notes

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

Randomised double‐blind study
Pharmaceutical company stated

Allocation concealment (selection bias)

Unclear risk

Unclear, no details

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

Double‐blind

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Unclear risk

Unclear, no details

Selective reporting (reporting bias)

Unclear risk

Unclear, no details

Other bias

Unclear risk

Unclear, insufficient details to permit a judgement

Dawood 1997

Methods

Phase II prospective randomised double‐blind study

Participants

11 patients

Interventions

Gestrinone 1.25 mg (5 participants) or 2.5 mg (6 participants) orally twice a week for 24 weeks

Outcomes

Revised AFS scores before and at the end of treatment

Serum hormone, sex hormone binding globulin, and lipid concentrations were measured

Quantitated computerised tomography of thoracic 12 through lumbar 4 vertebral bodies

Notes

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

Participants were randomised to 1 of 2 treatment groups according to a computer‐generated order

Allocation concealment (selection bias)

Unclear risk

Unclear, no details

Blinding of participants and personnel (performance bias)
All outcomes

Unclear risk

Unclear, no details

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Unclear risk

Unclear, no details

Selective reporting (reporting bias)

Unclear risk

Unclear, insufficient details to allow a judgement

Other bias

Unclear risk

Unclear, insufficient details to allow a judgement

Fedele 1989

Methods

Open randomised trial
No source of funding stated

Participants

39 Italian women aged 23 to 35 years
Inclusion criteria: infertility, laparoscopic diagnosis of endometriosis in preceding 3 months
Exclusion criteria: bilateral tubal occlusion, severe dyspermia in partner, use of danazol or other sex steroids in preceding 6 months, severe systemic or endocrine disease

Interventions

Gestrinone 2.5 mg twice weekly (20 women) increasing to 3 times a week if no amenorrhoea by 1 month (7 of the 20)
Danazol 600 mg per day (19 women) increasing to 800 mg per day if no amenorrhoea by 1 month (2 of the 19)
Duration of treatment: 6 months

Outcomes

rAFS scores at laparoscopy 1 month after cessation of treatment
Pain scores during treatment and at 18 month follow‐up
Plasma hormone levels before and during treatment
Pregnancy rates post treatment
Side effects

Notes

Follow‐up: 12 months
Losses to follow‐up: 1

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Unclear risk

'patients were randomly assigned'

Allocation concealment (selection bias)

Unclear risk

No details provided

Blinding of participants and personnel (performance bias)
All outcomes

High risk

No blinding

Blinding of outcome assessment (detection bias)
All outcomes

High risk

No blinding

Incomplete outcome data (attrition bias)
All outcomes

Low risk

All women accounted for

Selective reporting (reporting bias)

Low risk

Includes main outcomes

Other bias

High risk

Only 7 participants given gestrinone and 9 participants taking danazol had repeat laparoscopy. If amenorrhoea was not obtained after 1 month of treatment, the gestrinone dose was increased to 2.5 mg 3 times a week (7 participants) and the danazol dose to 800 mg a day (2 participants)

GISG 1996

Methods

Randomised double‐blind double‐dummy multi‐centre trial
Method of randomization described
Pharmaceutical company stated

Participants

55 Italian women aged 18 to 40 years
Inclusion criteria: chronic pelvic pain, laparoscopic diagnosis of endometriosis with no attempts at endometriosis reduction other than biopsy up to 3 months before study entry, no medical or surgical treatment for endometriosis between laparoscopy and study entry, not wanting pregnancy in the immediate future
Exclusion criteria: treatment for endometriosis other than non‐steroidal anti‐inflammatory drugs in the previous 6 months, concomitant pelvic pain causing disorder, contraindications to the use of gestrinone or GnRH analogues, abnormal baseline bone density values, unwillingness to use barrier contraception

Interventions

Gestrinone 2.5 mg twice weekly plus placebo injections (27 women)
Intramuscular (IM) leuprolide acetate 3.75 mg once a month plus placebo tablets (28 women)
Duration of treatment: 6 months

Outcomes

Pain symptoms
Bone mineral density
Lipid profile

Notes

Follow‐up: 6 months
6 withdrawals during treatment period
7 lost to follow‐up
8 pregnancies

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

'randomized', 'allocating consecutively numbered anonymous packages'

Allocation concealment (selection bias)

Low risk

Sealed envelopes containing randomization codes

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

'double blind, double dummy'. Each participant received an active drug and a dummy placebo. Participants and clinicians were blinded

Blinding of outcome assessment (detection bias)
All outcomes

Low risk

'double blind, double dummy'. Each participant received an active drug and a dummy placebo. Participants and clinicians were blinded

Incomplete outcome data (attrition bias)
All outcomes

High risk

Losses to follow‐up detailed, 6 withdrawals during treatment period, 7 lost to follow‐up (11%)

Selective reporting (reporting bias)

Low risk

Includes main outcomes

Other bias

Low risk

No other specific source of bias detected

Hornstein 1990

Methods

Randomised double‐blind trial
Pharmaceutical company stated

Participants

12 American women
Inclusion criteria: endometriosis (stage 2 to 3 disease according to rAFS classification) diagnosed on videotaped laparoscopy within previous 6 weeks
Exclusion criteria: none specified

Interventions

Gestrinone 1.25 mg twice weekly (6 women)
Gestrinone 2.5 mg twice weekly (6 women)
Duration of treatment: 6 months

Outcomes

rAFS scores for endometriosis at laparoscopy following treatment
Symptom scores during treatment and follow‐up
Side effects
Bone densitometry
Hormonal, lipoprotein, haematological, and biochemical measurements

Notes

Second laparoscopy within 4 weeks of treatment completion
Follow‐up: 6 months
Losses to follow‐up: 2

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Unclear risk

Randomised trial, method not mentioned

Allocation concealment (selection bias)

Unclear risk

Not mentioned

Blinding of participants and personnel (performance bias)
All outcomes

Low risk

Double‐blind

Blinding of outcome assessment (detection bias)
All outcomes

Low risk

Double‐blind

Incomplete outcome data (attrition bias)
All outcomes

High risk

Losses to follow‐up: 2 (17%)

Selective reporting (reporting bias)

Unclear risk

Reports main outcomes. No details on pelvic pain scores after treatment

Other bias

Low risk

No other specific source of bias detected

Spitz 2009

Methods

Randomised, double‐blind

Participants

38 women

Interventions

6 months of treatment with 3 doses of ulipristal, CDB‐4124 (12.5 mg, 25 mg, and 50 mg) compared with leuprolide acetate depot

Outcomes

Pain scores during treatment

Notes

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Unclear risk

Allocated at random, no other details

Allocation concealment (selection bias)

Unclear risk

Unclear, no details

Blinding of participants and personnel (performance bias)
All outcomes

Unclear risk

Unclear, no details

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Unclear risk

Unclear, no details

Selective reporting (reporting bias)

Unclear risk

Unclear, insufficient details to allow a judgement

Other bias

Unclear risk

Unclear, insufficient details to allow a judgement

Worthington 1993

Methods

Randomised double‐blind

Participants

20 premenopausal women with mild to moderate endometriosis

Interventions

1.25 mg or 2.5 mg gestrinone 2 times per week for 6 months

Outcomes

Metabolic effects of oral gestrinone on plasma lipoprotein risk markers for cardiovascular disease and on bone density

Median total endometriosis scores

Notes

Risk of bias

Bias

Authors' judgement

Support for judgement

Random sequence generation (selection bias)

Low risk

Randomised

Allocation concealment (selection bias)

Unclear risk

Unclear, no details

Blinding of participants and personnel (performance bias)
All outcomes

Unclear risk

Unclear, no details

Blinding of outcome assessment (detection bias)
All outcomes

Unclear risk

Unclear, no details

Incomplete outcome data (attrition bias)
All outcomes

Unclear risk

Unclear, no details

Selective reporting (reporting bias)

Unclear risk

Unclear, insufficient details to allow a judgement

Other bias

Unclear risk

Unclear, insufficient details to allow a judgement

AFS: American Fertility Society

GnRH: gonadotropin‐releasing hormone

rAFS: retrospective American Fertility Society score

Characteristics of excluded studies [ordered by study ID]

Study

Reason for exclusion

Bulun 2016

Not an RCT; single‐arm study

Kettel 1996

Not an RCT

Kettel 1998

Not an RCT

Mettler 1987

The “three step” therapy discussed in this study is a mixture of surgical and medical therapy

Nieto 1996

23/25 participants taking gestrinone and 18/18 participants given danazol had surgery before receiving medical treatment

Nobel 1980

Comparison of danazol vs oral contraceptive pill

Thomas 1987

This study concentrates on effects on asymptomatic endometriosis and fertility

Yang 2006

Conservative or half‐conservative surgery combined with drug therapy

Zhang 2016

Using laparoscopic minimally invasive combined drug therapy

RCT: randomised controlled trial

Data and analyses

Open in table viewer
Comparison 1. Effectiveness of mifepristone versus placebo, patient‐assessed outcomes

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Dysmenorrhoea at 3 months Show forest plot

1

352

Odds Ratio (M‐H, Fixed, 95% CI)

0.08 [0.04, 0.17]

Analysis 1.1

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Dysmenorrhoea at 3 months.

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Dysmenorrhoea at 3 months.

1.1 Mifepristone 2.5 mg

1

114

Odds Ratio (M‐H, Fixed, 95% CI)

0.24 [0.09, 0.64]

1.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.02 [0.00, 0.16]

1.3 Mifepristone 10 mg

1

118

Odds Ratio (M‐H, Fixed, 95% CI)

0.02 [0.00, 0.17]

2 Dyspareunia at 3 months Show forest plot

1

223

Odds Ratio (M‐H, Fixed, 95% CI)

0.23 [0.10, 0.51]

Analysis 1.2

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Dyspareunia at 3 months.

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Dyspareunia at 3 months.

2.1 Mifepristone 2.5 mg

1

74

Odds Ratio (M‐H, Fixed, 95% CI)

0.62 [0.18, 2.13]

2.2 Mifepristone 5 mg

1

73

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.00, 0.40]

2.3 Mifepristone 10 mg

1

76

Odds Ratio (M‐H, Fixed, 95% CI)

0.13 [0.03, 0.60]

Open in table viewer
Comparison 2. Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Amenorrhoea at 3 months Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 2.1

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Amenorrhoea at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Amenorrhoea at 3 months.

1.1 Mifepristone all doses

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

686.16 [92.29, 5101.33]

2 Amenorrhoea at 3 months: subgroup analysis Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 2.2

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Amenorrhoea at 3 months: subgroup analysis.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Amenorrhoea at 3 months: subgroup analysis.

2.1 Mifepristone 2.5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

207.67 [27.50, 1568.36]

2.2 Mifepristone 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3916.0 [348.75, 43971.52]

2.3 Mifepristone 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3916.0 [348.75, 43971.52]

3 Hot flushes at 3 months Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 2.3

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 3 Hot flushes at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 3 Hot flushes at 3 months.

3.1 Mifepristone all doses

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

28.79 [3.93, 210.73]

4 Hot flushes at 3 months: subgroup analysis Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 2.4

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 4 Hot flushes at 3 months: subgroup analysis.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 4 Hot flushes at 3 months: subgroup analysis.

4.1 Mifepristone 2.5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

19.24 [2.49, 148.54]

4.2 Mifepristone 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

23.82 [3.11, 182.24]

4.3 Mifepristone 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

46.76 [6.21, 351.92]

5 Nausea at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

1.72 [0.20, 15.03]

Analysis 2.5

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 5 Nausea at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 5 Nausea at 3 months.

5.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

5.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

5.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

2.44 [0.12, 48.60]

6 Vomiting at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.10, 10.01]

Analysis 2.6

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 6 Vomiting at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 6 Vomiting at 3 months.

6.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

6.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

6.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

7 Fatigue/Tiredness at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

5.48 [0.71, 42.27]

Analysis 2.7

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 7 Fatigue/Tiredness at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 7 Fatigue/Tiredness at 3 months.

7.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

3.92 [0.21, 73.08]

7.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

7.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

7.11 [0.40, 125.92]

Open in table viewer
Comparison 3. Mifepristone lower dose versus higher dose: efficacy and side effects at six months

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Prevalence of dysmenorrhoea Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.1

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 1 Prevalence of dysmenorrhoea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 1 Prevalence of dysmenorrhoea.

1.1 2.5 mg vs 5 mg

1

170

Odds Ratio (M‐H, Fixed, 95% CI)

0.85 [0.22, 3.29]

1.2 5 mg vs 10 mg

1

173

Odds Ratio (M‐H, Fixed, 95% CI)

1.22 [0.32, 4.71]

2 Dysmenorrhoea score 0‐10 VAS scale Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Totals not selected

Analysis 3.2

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 2 Dysmenorrhoea score 0‐10 VAS scale.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 2 Dysmenorrhoea score 0‐10 VAS scale.

2.1 5 mg vs 25 mg

1

Mean Difference (IV, Fixed, 95% CI)

0.0 [0.0, 0.0]

3 Prevalence of dyspareunia Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.3

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 3 Prevalence of dyspareunia.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 3 Prevalence of dyspareunia.

3.1 2.5 mg vs 5 mg

1

108

Odds Ratio (M‐H, Fixed, 95% CI)

6.37 [0.74, 54.81]

3.2 5 mg vs 10 mg

1

109

Odds Ratio (M‐H, Fixed, 95% CI)

0.52 [0.05, 5.90]

4 Dyspareunia score 0‐10 VAS scale Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Totals not selected

Analysis 3.4

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 4 Dyspareunia score 0‐10 VAS scale.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 4 Dyspareunia score 0‐10 VAS scale.

4.1 5 mg vs 25 mg

1

Mean Difference (IV, Fixed, 95% CI)

0.0 [0.0, 0.0]

5 Prevalence of pelvic pain Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.5

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 5 Prevalence of pelvic pain.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 5 Prevalence of pelvic pain.

5.1 2.5 mg vs 5 mg

1

110

Odds Ratio (M‐H, Fixed, 95% CI)

1.81 [0.63, 5.17]

5.2 5 mg vs 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

3.97 [0.79, 19.97]

6 Prevalence of amenorrhoea Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.6

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 6 Prevalence of amenorrhoea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 6 Prevalence of amenorrhoea.

6.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.45 [0.21, 0.97]

6.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

1.10 [0.47, 2.56]

6.3 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

0.61 [0.08, 4.41]

7 Prevalence of hot flushes Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.7

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 7 Prevalence of hot flushes.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 7 Prevalence of hot flushes.

7.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.84 [0.38, 1.89]

7.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.75 [0.35, 1.58]

7.3 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

3.24 [0.12, 87.13]

8 Prevalence of nausea Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.8

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 8 Prevalence of nausea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 8 Prevalence of nausea.

8.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

2.02 [0.18, 22.71]

8.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

1.0 [0.06, 16.24]

9 Prevalence of vomiting Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.9

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 9 Prevalence of vomiting.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 9 Prevalence of vomiting.

9.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3.03 [0.12, 75.46]

9.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 8.20]

10 Prevalence of fatigue/tiredness Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.10

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 10 Prevalence of fatigue/tiredness.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 10 Prevalence of fatigue/tiredness.

10.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

13.92 [0.77, 250.94]

10.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.03 [0.00, 0.54]

11 Prevalence of endometrial thickness > 20 mm Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 3.11

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 11 Prevalence of endometrial thickness > 20 mm.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 11 Prevalence of endometrial thickness > 20 mm.

11.1 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

1.41 [0.28, 7.13]

Open in table viewer
Comparison 4. Gestrinone versus danazol for six months: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 None or mild pelvic pain Show forest plot

2

230

Odds Ratio (M‐H, Fixed, 95% CI)

0.71 [0.33, 1.56]

Analysis 4.1

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 1 None or mild pelvic pain.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 1 None or mild pelvic pain.

2 None or mild dysmenorrhoea Show forest plot

2

214

Odds Ratio (M‐H, Fixed, 95% CI)

0.72 [0.39, 1.33]

Analysis 4.2

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 2 None or mild dysmenorrhoea.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 2 None or mild dysmenorrhoea.

3 None or mild dyspareunia Show forest plot

2

222

Odds Ratio (M‐H, Fixed, 95% CI)

0.83 [0.37, 1.86]

Analysis 4.3

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 3 None or mild dyspareunia.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 3 None or mild dyspareunia.

4 Adverse effects Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 4.4

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 4 Adverse effects.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 4 Adverse effects.

4.1 Acne

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

1.45 [0.90, 2.33]

4.2 Seborrhoea

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

2.73 [1.67, 4.46]

4.3 Hirsutism

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

2.63 [1.60, 4.32]

4.4 Voice problems

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.70 [0.34, 1.43]

4.5 Swelling hands/feet

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.40 [0.82, 2.38]

4.6 Hot flushes

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.79 [0.50, 1.26]

4.7 Decreased breast size

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.62 [0.38, 0.98]

4.8 Leg or muscle cramps

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.49 [0.30, 0.78]

4.9 Headache

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.36 [0.84, 2.21]

4.10 Nausea

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

1.36 [0.84, 2.19]

4.11 Vomiting

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

0.67 [0.32, 1.43]

4.12 Loss of appetite

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.31 [0.72, 2.37]

4.13 Hunger

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

0.59 [0.36, 0.97]

4.14 Dizziness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.24 [0.75, 2.05]

4.15 Tiredness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.44 [0.84, 2.45]

4.16 Faintness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.23 [0.54, 2.76]

4.17 Skin rash

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.71 [0.91, 3.20]

4.18 Weight gain

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.34 [0.09, 1.27]

4.19 Vaginal dryness

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.18 [0.01, 4.00]

4.20 Raised liver transaminases

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.18 [0.01, 4.00]

Open in table viewer
Comparison 5. Gestrinone versus leuprolin for six months: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Painful periods, visual analogue scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

0.82 [0.15, 1.49]

Analysis 5.1

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 1 Painful periods, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 1 Painful periods, visual analogue scale.

2 Painful periods, verbal rating scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

0.35 [0.12, 0.58]

Analysis 5.2

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 2 Painful periods, verbal rating scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 2 Painful periods, verbal rating scale.

3 Pain on intercourse, visual analogue scale Show forest plot

1

52

Mean Difference (IV, Fixed, 95% CI)

‐1.16 [‐2.08, ‐0.24]

Analysis 5.3

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 3 Pain on intercourse, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 3 Pain on intercourse, visual analogue scale.

4 Pain on intercourse, verbal rating scale Show forest plot

1

52

Mean Difference (IV, Fixed, 95% CI)

‐0.33 [‐0.62, ‐0.04]

Analysis 5.4

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 4 Pain on intercourse, verbal rating scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 4 Pain on intercourse, verbal rating scale.

5 Non‐menstrual pain, visual analogue scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

‐0.41 [‐1.76, 0.94]

Analysis 5.5

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 5 Non‐menstrual pain, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 5 Non‐menstrual pain, visual analogue scale.

6 Side effects Show forest plot

1

813

Odds Ratio (M‐H, Fixed, 95% CI)

0.65 [0.42, 1.01]

Analysis 5.6

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 6 Side effects.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 6 Side effects.

6.1 Seborrhoea

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

3.23 [0.13, 82.71]

6.2 Swelling hands/feet

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

5.59 [0.26, 121.96]

6.3 Hot flushes

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.20 [0.06, 0.63]

6.4 Leg or muscle cramps

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 8.55]

6.5 Headache

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.20 [0.06, 0.63]

6.6 Nausea

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

1.04 [0.06, 17.49]

6.7 Dizziness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.8 Skin rash

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

3.23 [0.13, 82.71]

6.9 Vaginal dryness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.19 [0.01, 4.21]

6.10 Mood changes

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.67 [0.10, 4.34]

6.11 Joint pain

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.12 Drowsiness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.13 Tachycardia

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

1.04 [0.06, 17.49]

6.14 Amenorrhoea

1

49

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.01, 0.38]

6.15 Spotting or bleeding

1

49

Odds Ratio (M‐H, Fixed, 95% CI)

22.92 [2.64, 198.66]

Open in table viewer
Comparison 6. Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 improvement in pain Show forest plot

1

10

Odds Ratio (M‐H, Fixed, 95% CI)

0.27 [0.01, 8.46]

Analysis 6.1

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 1 improvement in pain.

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 1 improvement in pain.

2 Side effect Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

Analysis 6.2

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 2 Side effect.

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 2 Side effect.

2.1 Noted any side effect

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.00, 1.12]

2.2 Discontinued because of headaches

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

0.28 [0.01, 8.42]

2.3 Irregular bleeding

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

2.5 [0.16, 38.60]

Study flow diagram.
Figuras y tablas -
Figure 1

Study flow diagram.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
Figuras y tablas -
Figure 2

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
Figuras y tablas -
Figure 3

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Forest plot of comparison: 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, outcome: 1.1 Dysmenorrhoea at three months.
Figuras y tablas -
Figure 4

Forest plot of comparison: 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, outcome: 1.1 Dysmenorrhoea at three months.

Forest plot of comparison.2 Mifepristone versus placebo, patient‐assessed outcomes, outcome: 2.1 Amenorrhoea at three months.
Figuras y tablas -
Figure 5

Forest plot of comparison.

2 Mifepristone versus placebo, patient‐assessed outcomes, outcome: 2.1 Amenorrhoea at three months.

Forest plot of comparison: side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, outcome: 2.2 Hot flushes at three months.
Figuras y tablas -
Figure 6

Forest plot of comparison: side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, outcome: 2.2 Hot flushes at three months.

Forest plot of comparison: 7 Gestrinone versus leuprolin for six months: efficacy and side effects, outcome: 7.1 Painful periods, visual analogue scale.
Figuras y tablas -
Figure 7

Forest plot of comparison: 7 Gestrinone versus leuprolin for six months: efficacy and side effects, outcome: 7.1 Painful periods, visual analogue scale.

Forest plot of comparison: 7 Gestrinone versus leuprolin for six months: efficacy and side effects, outcome: 7.3 Pain on intercourse, visual analogue scale.
Figuras y tablas -
Figure 8

Forest plot of comparison: 7 Gestrinone versus leuprolin for six months: efficacy and side effects, outcome: 7.3 Pain on intercourse, visual analogue scale.

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Dysmenorrhoea at 3 months.
Figuras y tablas -
Analysis 1.1

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Dysmenorrhoea at 3 months.

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Dyspareunia at 3 months.
Figuras y tablas -
Analysis 1.2

Comparison 1 Effectiveness of mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Dyspareunia at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Amenorrhoea at 3 months.
Figuras y tablas -
Analysis 2.1

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 1 Amenorrhoea at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Amenorrhoea at 3 months: subgroup analysis.
Figuras y tablas -
Analysis 2.2

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 2 Amenorrhoea at 3 months: subgroup analysis.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 3 Hot flushes at 3 months.
Figuras y tablas -
Analysis 2.3

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 3 Hot flushes at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 4 Hot flushes at 3 months: subgroup analysis.
Figuras y tablas -
Analysis 2.4

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 4 Hot flushes at 3 months: subgroup analysis.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 5 Nausea at 3 months.
Figuras y tablas -
Analysis 2.5

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 5 Nausea at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 6 Vomiting at 3 months.
Figuras y tablas -
Analysis 2.6

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 6 Vomiting at 3 months.

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 7 Fatigue/Tiredness at 3 months.
Figuras y tablas -
Analysis 2.7

Comparison 2 Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes, Outcome 7 Fatigue/Tiredness at 3 months.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 1 Prevalence of dysmenorrhoea.
Figuras y tablas -
Analysis 3.1

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 1 Prevalence of dysmenorrhoea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 2 Dysmenorrhoea score 0‐10 VAS scale.
Figuras y tablas -
Analysis 3.2

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 2 Dysmenorrhoea score 0‐10 VAS scale.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 3 Prevalence of dyspareunia.
Figuras y tablas -
Analysis 3.3

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 3 Prevalence of dyspareunia.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 4 Dyspareunia score 0‐10 VAS scale.
Figuras y tablas -
Analysis 3.4

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 4 Dyspareunia score 0‐10 VAS scale.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 5 Prevalence of pelvic pain.
Figuras y tablas -
Analysis 3.5

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 5 Prevalence of pelvic pain.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 6 Prevalence of amenorrhoea.
Figuras y tablas -
Analysis 3.6

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 6 Prevalence of amenorrhoea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 7 Prevalence of hot flushes.
Figuras y tablas -
Analysis 3.7

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 7 Prevalence of hot flushes.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 8 Prevalence of nausea.
Figuras y tablas -
Analysis 3.8

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 8 Prevalence of nausea.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 9 Prevalence of vomiting.
Figuras y tablas -
Analysis 3.9

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 9 Prevalence of vomiting.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 10 Prevalence of fatigue/tiredness.
Figuras y tablas -
Analysis 3.10

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 10 Prevalence of fatigue/tiredness.

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 11 Prevalence of endometrial thickness > 20 mm.
Figuras y tablas -
Analysis 3.11

Comparison 3 Mifepristone lower dose versus higher dose: efficacy and side effects at six months, Outcome 11 Prevalence of endometrial thickness > 20 mm.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 1 None or mild pelvic pain.
Figuras y tablas -
Analysis 4.1

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 1 None or mild pelvic pain.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 2 None or mild dysmenorrhoea.
Figuras y tablas -
Analysis 4.2

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 2 None or mild dysmenorrhoea.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 3 None or mild dyspareunia.
Figuras y tablas -
Analysis 4.3

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 3 None or mild dyspareunia.

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 4 Adverse effects.
Figuras y tablas -
Analysis 4.4

Comparison 4 Gestrinone versus danazol for six months: efficacy and side effects, Outcome 4 Adverse effects.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 1 Painful periods, visual analogue scale.
Figuras y tablas -
Analysis 5.1

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 1 Painful periods, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 2 Painful periods, verbal rating scale.
Figuras y tablas -
Analysis 5.2

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 2 Painful periods, verbal rating scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 3 Pain on intercourse, visual analogue scale.
Figuras y tablas -
Analysis 5.3

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 3 Pain on intercourse, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 4 Pain on intercourse, verbal rating scale.
Figuras y tablas -
Analysis 5.4

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 4 Pain on intercourse, verbal rating scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 5 Non‐menstrual pain, visual analogue scale.
Figuras y tablas -
Analysis 5.5

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 5 Non‐menstrual pain, visual analogue scale.

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 6 Side effects.
Figuras y tablas -
Analysis 5.6

Comparison 5 Gestrinone versus leuprolin for six months: efficacy and side effects, Outcome 6 Side effects.

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 1 improvement in pain.
Figuras y tablas -
Analysis 6.1

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 1 improvement in pain.

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 2 Side effect.
Figuras y tablas -
Analysis 6.2

Comparison 6 Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects, Outcome 2 Side effect.

Summary of findings for the main comparison. Mifepristone versus placebo for endometriosis

Mifepristone versus placebo for endometriosis

Patient or population: women with symptomatic endometriosis

Settings: gynaecology clinic

Intervention: progesterone receptor modulator (mifepristone)

Comparison: placebo

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No. of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

Placebo

Mifepristone

Prevalence of dysmenorrhoea

Follow‐up: 3 months

402 per 1000

51 per 1000
(26 to 103)

OR 0.08 (0.04 to 0.17)

352
(1)

⊕⊕⊕⊝
Moderatea,b

Prevalence of dyspareunia

Follow‐up: 3 months

288 per 1000

85 per 1000
(43 to 171)

OR 0.23 (0.10 to 0.51)

223
(1)

⊕⊕⊝⊝
Lowa,c

Side effects: amenorrhoea

Follow‐up: 3 months

11 per 1000

884 per 1000
(507 to 983)

OR 686.16 (92.29 to 5101.33)

360
(1)

⊕⊕⊕⊝

High

239/270 events in the mifepristone group vs 1/90 in the placebo group

Side effects: hot flushes

Follow‐up: 3 months

11 per 1000

243 per 1000
(42 to 701)

OR 28.79 (3.93 to 210.73)

360
(1)

⊕⊕⊕⊝

High

66/270 events in the mifepristone group vs 1/90 in the placebo group

*The basis for the assumed risk is the mean control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI)
CI: confidence interval; OR: odds ratio

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate
Very low quality: We are very uncertain about the estimate

aDowngraded one level for serious imprecision (wide confidence intervals and/or very few events)

bOutcome applied only to women with dysmenorrhoea at baseline, but this was 352/360 women randomised, so not downgraded for indirectness

cOutcome applied only to women with dyspareunia at baseline, which was 223/360 women randomised. Downgraded one level for serious indirectness

Figuras y tablas -
Summary of findings for the main comparison. Mifepristone versus placebo for endometriosis
Summary of findings 2. Gestrinone versus danazol for endometriosis

Gestrinone versus danazol for endometriosis

Patient or population: women with symptomatic endometriosis

Settings: gynaecology clinic

Intervention: progesterone receptor modulator (gestrinone)

Comparison: danazol

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No. of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

Danazol

Gestrinone

Pelvic pain: none or mild

890 per 1000

852 per 1000

(727 to 927)

OR 0.71

(0.33 to 1.56)

230

(2)

⊕⊕⊝⊝
Very lowa,b,c

Dysmenorrhoea: none or mild

Follow‐up: 6 months

721 per 1000

650 per 1000
(502 to 775)

OR 0.72 (0.39 to 1.33)

214
(2)

⊕⊝⊝⊝
Very lowa,b,c

Dyspareunia: none or mild

Follow‐up: 6 months

889 per 1000

869 per 1000
(748 to 937)

OR 0.83 (0.37 to 1.86)

222
(2)

⊕⊝⊝⊝
Very lowa,b,c

Side effects: hirsutism

Follow‐up: 6 months

248 per 1000

464 per 1000
(345 to 587)

OR 2.63 (1.60 to 4.32)

302
(2)

⊕⊝⊝⊝
Very lowb,c,d

I2 = 68%

Decreased breast size

Follow‐up: 6 months

477 per 1000

360 per 1000
(257 to 472)

OR 0.62 (0.38 to 0.98)

302
(2)

⊕⊕⊝⊝
Lowb,c

Side effects: hot flushes

Follow‐up: 6 months

425 per 1000

368 per 1000

(270 to 482)

OR 0.79

(0.50 to 1.26)

302

(2 studies)

⊕⊝⊝⊝
Very lowb,c,d

I2 = 72%

Side effects: acne

Follow‐up: 6 months

556 per 1000

644 per 1000

(529 to 744)

OR 1.45

(0.90 to 2.33)

302

(2 studies)

⊕⊕⊝⊝
Lowb,c

*The basis for the assumed risk is the mean control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI)
CI: confidence interval; OR: odds ratio

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate
Very low quality: We are very uncertain about the estimate

aAssessed in all randomised participants. Not all were symptomatic at baseline (although results show no significant differences in baseline symptoms between groups). Outcome therefore applies only to a select subgroup of participants: downgraded one level for serious indirectness

bDowngraded one level for serious risk of bias associated with poor reporting of study methods, high attrition in one study, and high risk of other bias in both studies

cImprecision of results (wide confidence intervals and/or few events), downgraded one level for serious imprecision

dDowngraded one level for serious inconsistency

Figuras y tablas -
Summary of findings 2. Gestrinone versus danazol for endometriosis
Summary of findings 3. Gestrinone versus leuprolin for endometriosis

Gestrinone versus leuprolin for endometriosis

Patient or population: women with symptomatic endometriosis

Settings: gynaecology clinic

Intervention: progesterone receptor modulator (gestrinone)

Comparison: leuprolin

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No. of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

Leuprolin

Gestrinone

Dysmenorrhoea, verbal rating scale

Follow‐up: 6 months

In control group, mean score for dysmenorrhoea on verbal rating scale was 0.04 points

Mean score in gestrinone group was 0.35 points higher (0.12 to 0.58 higher)

55
(1)

⊕⊕⊝⊝
Lowa

Verbal rating scale defines dysmenorrhoea according to limitation of ability to work (mild = 1, moderate = 2, incapacitated = 3)

Dyspareunia, verbal rating scale

Follow‐up: 6 months

In control group, mean score for dyspareunia on verbal rating scale was 0.43 points

Mean score in gestrinone group was 0.33 points lower (0.62 to 0.04 lower)

52
(1)

⊕⊕⊝⊝
Lowa

Verbal rating scale defines dyspareunia according to limitation of sexual activity (discomfort tolerated = 1; pain interrupts intercourse = 2, intercourse avoided owing to pain = 3)

Amenorrhoea

Follow‐up: 6 months

962 per 1000

500 per 1000
(26 to 908)

OR 0.04 (0.01 to 0.38)

49
(1)

⊕⊕⊝⊝
Lowb

Only 55 events overall

Spotting or bleeding

Follow‐up: 6 months

38 per 1000

475 per 1000
(94 to 887)

OR 22.92 (2.64 to 198.66)

49
(1)

⊕⊕⊝⊝
Lowb

Only 12 events overall

Side effects: hot flushes

Follow‐up: 6 months

679 per 1000

297 per 1000

(112 to 571)

OR 0.20

(0.06 to 0.63)

55
(1)

⊕⊕⊝⊝
Lowb

Only 27 events overall

*The basis for the assumed risk is the mean control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; OR: odds ratio

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate
Very low quality: We are very uncertain about the estimate

aDowngraded two levels for very serious imprecision: confidence intervals were compatible with no clinically meaningful difference between groups, or with small benefit in one group

bDowngraded two levels for very serious imprecision: small overall sample size (n = 55) and low event rates

Figuras y tablas -
Summary of findings 3. Gestrinone versus leuprolin for endometriosis
Table 1. Data unsuitable for analysis

Outcome

Study

Comparison

Measure

Int group

Control group

P value

Combined non‐pelvic pain,

dysmenorrhoea, and

dyspareunia

Chwalisz 2004

Asoprisnil: 5 mg (n = 31),

10 mg (n = 33), 25 mg (n = 32)

Placebo (n = 34)

Mean reduction at 3 months

on 0‐4 pain scale

0.5 points for each dose

< 0.1 points

< 0.05

Figuras y tablas -
Table 1. Data unsuitable for analysis
Comparison 1. Effectiveness of mifepristone versus placebo, patient‐assessed outcomes

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Dysmenorrhoea at 3 months Show forest plot

1

352

Odds Ratio (M‐H, Fixed, 95% CI)

0.08 [0.04, 0.17]

1.1 Mifepristone 2.5 mg

1

114

Odds Ratio (M‐H, Fixed, 95% CI)

0.24 [0.09, 0.64]

1.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.02 [0.00, 0.16]

1.3 Mifepristone 10 mg

1

118

Odds Ratio (M‐H, Fixed, 95% CI)

0.02 [0.00, 0.17]

2 Dyspareunia at 3 months Show forest plot

1

223

Odds Ratio (M‐H, Fixed, 95% CI)

0.23 [0.10, 0.51]

2.1 Mifepristone 2.5 mg

1

74

Odds Ratio (M‐H, Fixed, 95% CI)

0.62 [0.18, 2.13]

2.2 Mifepristone 5 mg

1

73

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.00, 0.40]

2.3 Mifepristone 10 mg

1

76

Odds Ratio (M‐H, Fixed, 95% CI)

0.13 [0.03, 0.60]

Figuras y tablas -
Comparison 1. Effectiveness of mifepristone versus placebo, patient‐assessed outcomes
Comparison 2. Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Amenorrhoea at 3 months Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Mifepristone all doses

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

686.16 [92.29, 5101.33]

2 Amenorrhoea at 3 months: subgroup analysis Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 Mifepristone 2.5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

207.67 [27.50, 1568.36]

2.2 Mifepristone 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3916.0 [348.75, 43971.52]

2.3 Mifepristone 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3916.0 [348.75, 43971.52]

3 Hot flushes at 3 months Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 Mifepristone all doses

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

28.79 [3.93, 210.73]

4 Hot flushes at 3 months: subgroup analysis Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Mifepristone 2.5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

19.24 [2.49, 148.54]

4.2 Mifepristone 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

23.82 [3.11, 182.24]

4.3 Mifepristone 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

46.76 [6.21, 351.92]

5 Nausea at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

1.72 [0.20, 15.03]

5.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

5.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

5.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

2.44 [0.12, 48.60]

6 Vomiting at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.10, 10.01]

6.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

6.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

6.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

1.02 [0.04, 25.76]

7 Fatigue/Tiredness at 3 months Show forest plot

1

360

Odds Ratio (M‐H, Fixed, 95% CI)

5.48 [0.71, 42.27]

7.1 Mifepristone 2.5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

3.92 [0.21, 73.08]

7.2 Mifepristone 5 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

7.3 Mifepristone 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

7.11 [0.40, 125.92]

Figuras y tablas -
Comparison 2. Side effects at three months, mifepristone versus placebo, patient‐assessed outcomes
Comparison 3. Mifepristone lower dose versus higher dose: efficacy and side effects at six months

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Prevalence of dysmenorrhoea Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 2.5 mg vs 5 mg

1

170

Odds Ratio (M‐H, Fixed, 95% CI)

0.85 [0.22, 3.29]

1.2 5 mg vs 10 mg

1

173

Odds Ratio (M‐H, Fixed, 95% CI)

1.22 [0.32, 4.71]

2 Dysmenorrhoea score 0‐10 VAS scale Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Totals not selected

2.1 5 mg vs 25 mg

1

Mean Difference (IV, Fixed, 95% CI)

0.0 [0.0, 0.0]

3 Prevalence of dyspareunia Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

3.1 2.5 mg vs 5 mg

1

108

Odds Ratio (M‐H, Fixed, 95% CI)

6.37 [0.74, 54.81]

3.2 5 mg vs 10 mg

1

109

Odds Ratio (M‐H, Fixed, 95% CI)

0.52 [0.05, 5.90]

4 Dyspareunia score 0‐10 VAS scale Show forest plot

1

Mean Difference (IV, Fixed, 95% CI)

Totals not selected

4.1 5 mg vs 25 mg

1

Mean Difference (IV, Fixed, 95% CI)

0.0 [0.0, 0.0]

5 Prevalence of pelvic pain Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

5.1 2.5 mg vs 5 mg

1

110

Odds Ratio (M‐H, Fixed, 95% CI)

1.81 [0.63, 5.17]

5.2 5 mg vs 10 mg

1

120

Odds Ratio (M‐H, Fixed, 95% CI)

3.97 [0.79, 19.97]

6 Prevalence of amenorrhoea Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

6.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.45 [0.21, 0.97]

6.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

1.10 [0.47, 2.56]

6.3 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

0.61 [0.08, 4.41]

7 Prevalence of hot flushes Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

7.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.84 [0.38, 1.89]

7.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.75 [0.35, 1.58]

7.3 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

3.24 [0.12, 87.13]

8 Prevalence of nausea Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

8.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

2.02 [0.18, 22.71]

8.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

1.0 [0.06, 16.24]

9 Prevalence of vomiting Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

9.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

3.03 [0.12, 75.46]

9.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 8.20]

10 Prevalence of fatigue/tiredness Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

10.1 2.5 mg vs 5 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

13.92 [0.77, 250.94]

10.2 5 mg vs 10 mg

1

180

Odds Ratio (M‐H, Fixed, 95% CI)

0.03 [0.00, 0.54]

11 Prevalence of endometrial thickness > 20 mm Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

11.1 5 mg vs 25 mg

1

26

Odds Ratio (M‐H, Fixed, 95% CI)

1.41 [0.28, 7.13]

Figuras y tablas -
Comparison 3. Mifepristone lower dose versus higher dose: efficacy and side effects at six months
Comparison 4. Gestrinone versus danazol for six months: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 None or mild pelvic pain Show forest plot

2

230

Odds Ratio (M‐H, Fixed, 95% CI)

0.71 [0.33, 1.56]

2 None or mild dysmenorrhoea Show forest plot

2

214

Odds Ratio (M‐H, Fixed, 95% CI)

0.72 [0.39, 1.33]

3 None or mild dyspareunia Show forest plot

2

222

Odds Ratio (M‐H, Fixed, 95% CI)

0.83 [0.37, 1.86]

4 Adverse effects Show forest plot

2

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

4.1 Acne

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

1.45 [0.90, 2.33]

4.2 Seborrhoea

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

2.73 [1.67, 4.46]

4.3 Hirsutism

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

2.63 [1.60, 4.32]

4.4 Voice problems

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.70 [0.34, 1.43]

4.5 Swelling hands/feet

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.40 [0.82, 2.38]

4.6 Hot flushes

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.79 [0.50, 1.26]

4.7 Decreased breast size

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.62 [0.38, 0.98]

4.8 Leg or muscle cramps

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

0.49 [0.30, 0.78]

4.9 Headache

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.36 [0.84, 2.21]

4.10 Nausea

2

302

Odds Ratio (M‐H, Fixed, 95% CI)

1.36 [0.84, 2.19]

4.11 Vomiting

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

0.67 [0.32, 1.43]

4.12 Loss of appetite

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.31 [0.72, 2.37]

4.13 Hunger

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

0.59 [0.36, 0.97]

4.14 Dizziness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.24 [0.75, 2.05]

4.15 Tiredness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.44 [0.84, 2.45]

4.16 Faintness

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.23 [0.54, 2.76]

4.17 Skin rash

1

264

Odds Ratio (M‐H, Fixed, 95% CI)

1.71 [0.91, 3.20]

4.18 Weight gain

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.34 [0.09, 1.27]

4.19 Vaginal dryness

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.18 [0.01, 4.00]

4.20 Raised liver transaminases

1

38

Odds Ratio (M‐H, Fixed, 95% CI)

0.18 [0.01, 4.00]

Figuras y tablas -
Comparison 4. Gestrinone versus danazol for six months: efficacy and side effects
Comparison 5. Gestrinone versus leuprolin for six months: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Painful periods, visual analogue scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

0.82 [0.15, 1.49]

2 Painful periods, verbal rating scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

0.35 [0.12, 0.58]

3 Pain on intercourse, visual analogue scale Show forest plot

1

52

Mean Difference (IV, Fixed, 95% CI)

‐1.16 [‐2.08, ‐0.24]

4 Pain on intercourse, verbal rating scale Show forest plot

1

52

Mean Difference (IV, Fixed, 95% CI)

‐0.33 [‐0.62, ‐0.04]

5 Non‐menstrual pain, visual analogue scale Show forest plot

1

55

Mean Difference (IV, Fixed, 95% CI)

‐0.41 [‐1.76, 0.94]

6 Side effects Show forest plot

1

813

Odds Ratio (M‐H, Fixed, 95% CI)

0.65 [0.42, 1.01]

6.1 Seborrhoea

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

3.23 [0.13, 82.71]

6.2 Swelling hands/feet

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

5.59 [0.26, 121.96]

6.3 Hot flushes

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.20 [0.06, 0.63]

6.4 Leg or muscle cramps

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.33 [0.01, 8.55]

6.5 Headache

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.20 [0.06, 0.63]

6.6 Nausea

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

1.04 [0.06, 17.49]

6.7 Dizziness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.8 Skin rash

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

3.23 [0.13, 82.71]

6.9 Vaginal dryness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.19 [0.01, 4.21]

6.10 Mood changes

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

0.67 [0.10, 4.34]

6.11 Joint pain

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.12 Drowsiness

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

2.16 [0.18, 25.32]

6.13 Tachycardia

1

55

Odds Ratio (M‐H, Fixed, 95% CI)

1.04 [0.06, 17.49]

6.14 Amenorrhoea

1

49

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.01, 0.38]

6.15 Spotting or bleeding

1

49

Odds Ratio (M‐H, Fixed, 95% CI)

22.92 [2.64, 198.66]

Figuras y tablas -
Comparison 5. Gestrinone versus leuprolin for six months: efficacy and side effects
Comparison 6. Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 improvement in pain Show forest plot

1

10

Odds Ratio (M‐H, Fixed, 95% CI)

0.27 [0.01, 8.46]

2 Side effect Show forest plot

1

Odds Ratio (M‐H, Fixed, 95% CI)

Subtotals only

2.1 Noted any side effect

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

0.04 [0.00, 1.12]

2.2 Discontinued because of headaches

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

0.28 [0.01, 8.42]

2.3 Irregular bleeding

1

12

Odds Ratio (M‐H, Fixed, 95% CI)

2.5 [0.16, 38.60]

Figuras y tablas -
Comparison 6. Gestrinone 1.25 mg versus gestrinone 2.5 mg: efficacy and side effects