Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

92 questions · 92 findings · 16 reviews · Schizophrenia

No studies found 20 · 21.7%GRADE not reported 15 · 16.3%Very low 30 · 32.6%Low 20 · 21.7%Moderate 4 · 4.3%High 3 · 3.3%

Maintenance treatment with antipsychotic drugs vs placebo/no treatment

Acceptability of treatment ‐ leaving the study early · schizophrenia

Maintenance treatment with antipsychotic drugs leads to lower leaving the study early: due to any reason (acceptability of… compared with placebo/no treatment (high certainty).

1 finding from 1 review

CLOZAPINE + AMISULPIRIDE vs CLOZAPINE + QUETIAPINE (Genc 2007)

Leaving the study early · people with treatment‐resistant schizophrenia

It is very uncertain whether CLOZAPINE + AMISULPIRIDE changes leaving the study early: acceptability of treatment ‐ as measured by… compared with CLOZAPINE + QUETIAPINE (Genc 2007) (very low certainty).

1 finding from 1 review

CLOZAPINE + RISPERIDONE vs CLOZAPINE + ZIPRASIDONE (Kuwilsky 2010)

Acceptability of treatment ‐ leaving the study early · people with treatment‐resistant schizophrenia

It is very uncertain whether CLOZAPINE + RISPERIDONE changes leaving the study early: acceptability of treatment ‐ as measured by… compared with CLOZAPINE + ZIPRASIDONE (Kuwilsky 2010) (very low certainty).

1 finding from 1 review

CLOZAPINE + ZIPRASIDONE vs CLOZAPINE + QUETIAPINE (Wen 2015)

Leaving the study early · people with treatment‐resistant schizophrenia

It is very uncertain whether CLOZAPINE + ZIPRASIDONE changes leaving the study early: acceptability of treatment ‐ as measured by… compared with CLOZAPINE + QUETIAPINE (Wen 2015) (very low certainty).

1 finding from 1 review

CLOZAPINE + ARIPIPRAZOLE vs CLOZAPINE + HALOPERIDOL (Cipriani 2013)

Acceptability of treatment ‐ leaving the study early · people with treatment‐resistant schizophrenia

It is very uncertain whether CLOZAPINE + ARIPIPRAZOLE changes leaving the study early: acceptability of treatment ‐ as measured by… compared with CLOZAPINE + HALOPERIDOL (Cipriani 2013) (very low certainty).

1 finding from 1 review

Sildenafil vs placebo

Sexual function: Objective assessment (Global efficacy questionnaire, improved erections) · patients with sexual dysfunction due to antipsychotic drug therapy

ADJUNCTIVE TREATMENT ‐ SPECIFIC: SILDENAFIL may leads to higher sexual function: Objective assessment (Global efficacy… compared with PLACEBO (low certainty).

1 finding from 1 review

Sildenafil vs placebo

Leaving the study early · patients with sexual dysfunction due to antipsychotic drug therapy

It is very uncertain whether ADJUNCTIVE TREATMENT ‐ SPECIFIC: SILDENAFIL changes leaving the study early compared with PLACEBO (very low certainty).

1 finding from 1 review