Cochrane · systematic review · CD011057

Risperidone versus other antipsychotics for people with severe mental illness and co‐occurring substance misuse

Temmingh, HS, Williams, T, Siegfried, N, et al. · Cochrane Database of Systematic Reviews · 2018 · Cochrane Library

SchizophreniaAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
17
current version
GRADE rated
15
No studies
2
Included studies
NR
No studies 2 · 11.8%Ungraded 0 · 0%Very low 12 · 70.6%Low 3 · 17.6%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

RISPERIDONE versus CLOZAPINE ‐ all data short term for people with severe mental illness and co‐occurring substance misuse

Population: for people with serious mental illness and co‐occurring substance misuse
7 questions
OutcomeEffectEvidenceStatus / GRADE
Mental state: positive symptoms ‒average endpoint score (PANSS positive subscale, lower = better)
RISPERIDONE vs CLOZAPINE ‐ all data short term
no estimate extracted1 study · 36 participantsVery low
Downgraded: risk of bias
Substance use: improvement ‒ (at least 20% reduction in use, TLFB scale)
RISPERIDONE vs CLOZAPINE ‐ all data short term
RR 1 [0.3, 3.35]1 study · 14 participantsVery low
Downgraded: risk of bias, imprecision
Subjective well‐being: Subjective well‐being under neuroleptics scale ‒ average endpoint scores (SWN scale, higher = better)
RISPERIDONE vs CLOZAPINE ‐ all data short term
no estimate extracted1 study · 36 participantsVery low
Downgraded: risk of bias
Craving for substances: Marijuana Craving Questionnaire ‒ average endpoint scores (MCQ, lower = better)
RISPERIDONE vs CLOZAPINE ‐ all data short term
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias
Adherence to antipsychotic medication: discontinued medication
RISPERIDONE vs CLOZAPINE ‐ all data short term
RR 4.05 [0.21, 78.76]1 study · 36 participantsVery low
Downgraded: risk of bias
Adverse effects. 1. Movement disorders ‐ any extrapyramidal
RISPERIDONE vs CLOZAPINE ‐ all data short term
RR 2.71 [0.3, 24.08]2 studies · 50 participantsVery low
Downgraded: risk of bias, imprecision
Leaving the study early ‒ any reason
RISPERIDONE vs CLOZAPINE ‐ all data short term
RR 0.49 [0.1, 2.51]2 studies · 45 participantsVery low
Downgraded: risk of bias, imprecision

RISPERIDONE versus OLANZAPINE ‒ short‐ and long‐term data for people with severe mental illness and co‐occurring substance misuse

Population: people with serious mental illness and co‐occurring substance misuse
7 questions
OutcomeEffectEvidenceStatus / GRADE
Mental state: 2. Specific‐ Positive symptoms, total score‐ average endpoint scores (SADS‐C‐PD scale, lower = better)
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extracted1 study · 37 participantsVery low
Downgraded: risk of bias
Substance use: 1. Reduction of cannabis use‐change data (number of joints smoked/week)
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extracted1 study · 41 participantsVery low
Downgraded: risk of bias, imprecision
Subjective well‐being
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extractedNRNo studies
Craving for substances: 2. Drug Desires Questionnaire‐ average endpoint scores (DDQ, lower = better)
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extracted1 study · 41 participantsVery low
Downgraded: risk of bias, imprecision
Adherence to antipsychotic medication: number of missed doses, average endpoint data, short term (up to 6 months)
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extractedNRNo studies
Adverse effects: Parkinsonism ‐ average endpoint score (SAS, high = worse)
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
no estimate extracted1 study · 16 participantsVery low
Downgraded: risk of bias, imprecision
Leaving study early: any reason
RISPERIDONE vs OLANZAPINE ‒ short‐ and long‐term data
RR 0.68 [0.34, 1.35]2 studies · 77 participantsVery low
Downgraded: risk of bias, imprecision

RISPERIDONE versus PERHENAZINE ‒ long‐term data for people with severe mental illness and co‐occurring substance misuse

Population: people with severe mental illness and co‐occurring substance misuse
1 question
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: any reason
RISPERIDONE vs PERHENAZINE ‒ long‐term data
RR 1.05 [0.92, 1.2]1 study · 281 participantsLow
Downgraded: risk of bias

RISPERIDONE versus QUETIAPINE ‒ short‐ and long‐term data for people with severe mental illness and co‐occurring substance misuse

Population: people with severe mental illness and co‐occurring substance misuse
1 question
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: 1. any reason, long term (>12 months)
RISPERIDONE vs QUETIAPINE ‒ short‐ and long‐term data
RR 0.96 [0.86, 1.07]1 study · 294 participantsLow
Downgraded: risk of bias, imprecision

RISPERIDONE versus ZIPRASIDONE ‒ long‐term data (> 12 months) for people with severe mental illness and co‐occurring substance misuse

Population: people with severe mental illness and co‐occurring substance misuse
1 question
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: any reason
RISPERIDONE vs ZIPRASIDONE ‒ long‐term data (> 12 months)
RR 0.96 [0.85, 1.1]1 study · 240 participantsLow
Downgraded: risk of bias