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Tratamiento complementario con sultiame para la epilepsia

Appendices

Appendix 1. Search strategy for CRS Web

1. (sulthiame OR sultiame OR Ospolot) AND CENTRAL:TARGET

2. MESH DESCRIPTOR Epilepsy EXPLODE ALL AND CENTRAL:TARGET

3. MESH DESCRIPTOR Seizures EXPLODE ALL AND CENTRAL:TARGET

4. (epilep* OR seizure* OR convuls*):AB,KW,MC,MH,TI AND CENTRAL:TARGET

5. #2 OR #3 OR #4 AND CENTRAL:TARGET

6. #1 AND #5

Appendix 2. Search strategy for MEDLINE Ovid

This strategy is based on the Cochrane highly sensitive search strategy for identifying randomised trials published in Lefebvre 2011.

1. (sulthiame or sultiame or Ospolot).tw.

2. exp Epilepsy/

3. exp Seizures/

4. (epilep$ or seizure$ or convuls$).tw.

5. 2 or 3 or 4

6. exp *Pre‐Eclampsia/ or exp *Eclampsia/

7. 5 not 6

8. (randomized controlled trial or controlled clinical trial or pragmatic clinical trial).pt. or (randomi?ed or placebo or randomly).ab.

9. clinical trials as topic.sh.

10. trial.ti.

11. 8 or 9 or 10

12. exp animals/ not humans.sh.

13. 11 not 12

14. 1 and 7 and 13

15. remove duplicates from 14

Appendix 3. ClinicalTrials.gov search strategy

Interventional Studies | Epilepsy | sulthiame or sultiame or ospolot

Appendix 4. ICTRP search strategy

Condition: epilepsy

Intervention: sulthiame or sultiame or ospolot

Appendix 5. SCOPUS search strategy

(TITLE‐ABS‐KEY(sulthiame OR sultiame OR ospolot)) AND (((((TITLE‐ABS‐KEY(epilep* OR "infantile spasm" OR "ring chromosome 20" OR "R20" OR "myoclonic encephalopathy" OR "pyridoxine dependency")) OR (TITLE‐ABS‐KEY(syndrome W/2 (aicardi OR angelman OR doose OR dravet OR janz OR jeavons OR "landau kleffner" OR "lennox gastaut" OR ohtahara OR panayiotopoulos OR rasmussen OR rett OR "sturge weber" OR tassinari OR "unverricht lundborg" OR west)))) OR (TITLE(seizure OR convuls*))) OR ((TITLE‐ABS‐KEY(lafora* W/4 (disease OR epilep*))) AND NOT (TITLE(dog OR canine) OR INDEXTERMS(dog OR canine)))) AND NOT (TITLE(*eclampsia) OR INDEXTERMS(*eclampsia)) AND NOT INDEX(medline)) AND (TITLE((randomiz* OR randomis* OR controlled OR placebo OR blind* OR unblind* OR "parallel group" OR crossover OR "cross over" OR cluster OR "head to head") PRE/2 (trial OR method OR procedure OR study)) OR ABS((randomiz* OR randomis* OR controlled OR placebo OR blind* OR unblind* OR "parallel group" OR crossover OR "cross over" OR cluster OR "head to head") PRE/2 (trial OR method OR procedure OR study)))

Study flow diagram
Figuras y tablas -
Figure 1

Study flow diagram

Risk of bias summary: review authors' judgements about each risk of bias item for each included study
Figuras y tablas -
Figure 2

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

Comparison 1 Sulthiame add‐on versus placebo, Outcome 1 Complete cessation of seizures.
Figuras y tablas -
Analysis 1.1

Comparison 1 Sulthiame add‐on versus placebo, Outcome 1 Complete cessation of seizures.

Comparison 1 Sulthiame add‐on versus placebo, Outcome 2 Adverse effects ‐ Total number of participants experiencing one or more adverse effects.
Figuras y tablas -
Analysis 1.2

Comparison 1 Sulthiame add‐on versus placebo, Outcome 2 Adverse effects ‐ Total number of participants experiencing one or more adverse effects.

Comparison 1 Sulthiame add‐on versus placebo, Outcome 3 Adverse effects ‐ Somnolence.
Figuras y tablas -
Analysis 1.3

Comparison 1 Sulthiame add‐on versus placebo, Outcome 3 Adverse effects ‐ Somnolence.

Summary of findings for the main comparison. Sulthiame add‐on compared to placebo for epilepsy (event)

Sulthiame add‐on compared to placebo for epilepsy

Patient or population: patients between 3 to 15 months of age with West syndrome
Setting: inpatient
Intervention: sulthiame as add‐on therapy to pyridoxine
Comparison: placebo as add‐on therapy to pyridoxine

Outcomes

Anticipated absolute effects* (95% CI)

Relative effect
(95% CI)

№ of participants
(studies)

Certainty of the evidence
(GRADE)

Comments

Risk with placebo

Risk with Sulthiame add‐on

50% or greater reduction in seizure frequency

Outcome was not reported by Debus 2004

Complete cessation of seizures during follow‐up

Follow‐up: 9 days

Study population

RR 11.14
(0.67 to 184.47)

37
(1 RCT)

⊕⊝⊝⊝
VERY LOWa,b,c

0 per 1,000

0 per 1000
(0 to 0)

Mean seizure frequency

Outcome was not reported by Debus 2004

Time‐to‐treatment withdrawal

Outcome was not reported by Debus 2004

Adverse effects: total number of participants experiencing one or more adverse effects

Follow‐up: 9 days

Study population

RR 0.85
(0.44 to 1.64)

37
(1 RCT)

⊕⊝⊝⊝
VERY LOWa,b

529 per 1,000

450 per 1000
(233 to 868)

Adverse effects: somnolence

Follow‐up: 9 days

Study population

RR 3.40
(0.42 to 27.59)

37
(1 RCT)

⊕⊝⊝⊝
VERY LOWa,b,d

59 per 1,000

200 per 1000
(25 to 1000)

Quality of life

Outcome was not reported by Debus 2004

*The risk in the intervention group (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; RR: risk ratio

GRADE Working Group grades of evidence
High certainty: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate certainty: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
Low certainty: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low certainty: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

aDowngraded once for risk of bias: Debus 2004 did not describe how blinding was achieved or maintained, and we suspected reporting bias for the adverse effect outcomes.

bDowngraded twice for imprecision: small study population, therefore, the number of events failed to suffice optimal information size.

cEvidence was not upgraded for effect size: normally, the evidence would be upgraded twice when a RR is greater than 5.00, however, due to the concerns regarding risk of bias and small sample size, we were unable to upgrade the evidence.

dEvidence was not upgraded for effect size: normally, the evidence would be upgraded once when a RR is greater than 2.00, however, due to the concerns regarding risk of bias and small sample size, we were unable to upgrade the evidence.

Figuras y tablas -
Summary of findings for the main comparison. Sulthiame add‐on compared to placebo for epilepsy (event)
Comparison 1. Sulthiame add‐on versus placebo

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Complete cessation of seizures Show forest plot

1

37

Risk Ratio (M‐H, Fixed, 95% CI)

11.14 [0.67, 184.47]

2 Adverse effects ‐ Total number of participants experiencing one or more adverse effects Show forest plot

1

37

Risk Ratio (M‐H, Fixed, 95% CI)

0.85 [0.44, 1.64]

3 Adverse effects ‐ Somnolence Show forest plot

1

37

Risk Ratio (M‐H, Fixed, 95% CI)

3.4 [0.42, 27.59]

Figuras y tablas -
Comparison 1. Sulthiame add‐on versus placebo