Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,543 questions · 2,589 findings · 168 reviews · Schizophrenia

No studies found 601 · 23.2%GRADE not reported 446 · 17.2%Very low 721 · 27.8%Low 505 · 19.5%Moderate 274 · 10.6%High 42 · 1.6%

CHLORPROMAZINE vs piperacetazine

Adverse effects. Specific: movement disorders ‐ parkinsonism · patients with schizophrenia

It is very uncertain whether chlorpromazine changes adverse effects/events: clinically important movement disorder… compared with piperacetazine (very low certainty).

1 finding from 1 review

Antipsychotic dose increase vs antipsychotic dose continuation

Adverse effects – leaving the study early due to adverse effects – overall tolerability – total · non response in schizophrenia

It is very uncertain whether antipsychotic dose increase changes leaving the study early: tolerability ‐ leaving early due to adverse… compared with antipsychotic dose continuation (very low certainty).

1 finding from 1 review

Antipsychotic dose increase vs antipsychotic dose continuation

Acceptability of treatment ‐ leaving the study early · non response in schizophrenia

Antipsychotic dose increase showed no clear difference in leaving the study early: acceptability ‐ leaving early due to any… compared with antipsychotic dose continuation (low certainty).

1 finding from 1 review

Antipsychotic dose increase vs antipsychotic dose continuation

Risk for at least one adverse event per patient · non response in schizophrenia

It is very uncertain whether antipsychotic dose increase changes adverse effects ‐ at least one adverse effect compared with antipsychotic dose continuation (very low certainty).

1 finding from 1 review

Antipsychotic dose increase vs switching the antipsychotic drug

Clinically significant response on global state · non response in schizophrenia

It is very uncertain whether increasing the antipsychotic dose changes global state: Clinically relevant response – as defined by trial… compared with switching the antipsychotic drug (very low certainty).

1 finding from 1 review

Mirtazapine adjunct vs placebo adjunct

Mental state: 2a. Negative symptoms ‐ No clinical important improvement ‐ negative symptoms (SANS) · schizophrenia

It is very uncertain whether mirtazapine adjunct changes mental state: specific negative symptoms ‐ clinically important… compared with placebo adjunct (very low certainty).

1 finding from 1 review

Mirtazapine adjunct vs placebo adjunct

Mental state: clinically important change in mental state · schizophrenia

It is very uncertain whether mirtazapine adjunct changes mental state: overall mental state ‐ clinically important change* compared with placebo adjunct (very low certainty).

1 finding from 1 review