Cochrane · systematic review · CD007474

Risperidone dose for schizophrenia

Li, C, Xia, J, Wang, J · Cochrane Database of Systematic Reviews · 2009 · 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
52
current version
GRADE rated
52
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 51 · 98.1%High 1 · 1.9%

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

ULTRA LOW DOSE (<2 mg/day) versus ANY DOSE ‐ short term for schizophrenia

Population: patients with schizophrenia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: Any reason ‐ when compared with standard‐low dose (greater than or equal to 4‐<6 mg/day)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 1.3 [0.93, 1.83]2 studies · 461 participantsModerate
Downgraded: risk of bias
Leaving the study early: Any reason ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 1.04 [0.76, 1.43]1 study · 459 participantsModerate
Downgraded: risk of bias
Leaving the study early: Any reason ‐ when compared with high dose (greater than or equal to 10 mg)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 0.94 [0.72, 1.23]1 study · 679 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ as measured by PANSS ‐ when compared with low dose (greater than or equal to 2‐<4 mg)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 0.86 [0.29, 2.54]1 study · 67 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ as measured by PANSS ‐ when compared with standard‐low dose (greater than or equal to 4‐<6 mg/day)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 1.24 [0.99, 1.55]1 study · 456 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ as measured by PANSS ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 1.32 [1.05, 1.66]1 study · 459 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ as measured by PANSS ‐ when compared with high dose (greater than or equal to 10 mg/day)
ULTRA LOW DOSE (<2 mg/day) vs ANY DOSE ‐ short term
RR 1.12 [0.94, 1.35]1 study · 679 participantsModerate
Downgraded: risk of bias

LOW DOSE (greater than or equal to 2‐<4 mg/day) versus ANY DOSE ‐ short term for schizophrenia (continued)

Population: patients with schizophrenia
5 questions
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: any reason ‐ when compared with standard‐lower dose (greater than or equal to 4‐<6 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 0.75 [0.15, 3.72]1 study · 5 participantsModerate
Downgraded: risk of bias
Leaving the study early: any reason ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 3.11 [1.41, 6.84]2 studies · 70 participantsModerate
Downgraded: risk of bias
Leaving the study early: any reason ‐ when compared with high dose ( greater than or equal to 10 mg)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 2.33 [1.4, 3.86]1 study · 70 participantsModerate
Global state: No clinically important improvement ‐ global evaluation ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 1.32 [1.06, 1.64]2 studies · 172 participantsModerate
Global state: No clinically important improvement ‐ global evaluation ‐ when compared with high dose (greater than or equal to 10 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 1.07 [0.92, 1.25]2 studies · 257 participantsModerate

LOW DOSE (greater than or equal to 2‐<4 mg/day) versus ANY DOSE ‐ short term for schizophrenia

Population: patients with schizophrenia
3 questions
OutcomeEffectEvidenceStatus / GRADE
Adverse effects: 5a. Movement disorders ‐ specific symptoms ‐ EPS: unspecified ‐ versus standard‐lower dose (greater than or equal to 4‐<6 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 0.44 [0.32, 0.6]1 study · 124 participantsModerate
Downgraded: risk of bias
Adverse effects: 5a. Movement disorders ‐ specific symptoms ‐ EPS: unspecified ‐ versus standard‐higher dose (greater than or equal to 6‐<10 mg/day)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 0.81 [0.37, 1.75]2 studies · 173 participantsModerate
Downgraded: risk of bias
Adverse effects: 5a. Movement disorders ‐ specific symptoms ‐ EPS: unspecified ‐ versus high dose ( greater than or equal to 10 mg)
LOW DOSE (greater than or equal to 2‐<4 mg/day) vs ANY DOSE ‐ short term
RR 0.45 [0.24, 0.84]2 studies · 262 participantsModerate
Downgraded: risk of bias

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) versus ANY DOSE ‐ short term for schizophrenia (continued)

Population: patients with schizophrenia
4 questions
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: Any reasons ‐ when compared with ultra low dose (<2 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.77 [0.55, 1.08]2 studies · 461 participantsModerate
Leaving the study early: Any reasons ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.78 [0.58, 1.06]2 studies · 496 participantsModerate
Downgraded: risk of bias
Leaving the study early: Any reasons ‐ When compared with high dose ( greater than or equal to 10 mg)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.74 [0.54, 1]1 study · 677 participantsModerate
Downgraded: risk of bias
Global state: No clinically important improvement ‐ global evaluation ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.74 [0.34, 1.58]1 study · 39 participantsModerate
Downgraded: risk of bias

STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) versus ANY DOSE ‐ short term for schizophrenia

Population: patients with schizophrenia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Mental state: No clinically important improvement ‐ PANSS ‐ when compared with ultra low dose (<2 mg)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.81 [0.64, 1.01]1 study · 456 participantsModerate
Downgraded: risk of bias
Mental state: No clinically important improvement ‐ PANSS ‐ when compared with low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.94 [0.44, 2.03]2 studies · 206 participantsModerate
Downgraded: risk of bias
Mental state: No clinically important improvement ‐ PANSS ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 1.06 [0.83, 1.36]1 study · 457 participantsModerate
Downgraded: risk of bias
Mental state: No clinically important improvement ‐ PANSS ‐ when compared with high dose ( greater than or equal to 10 mg)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 0.9 [0.74, 1.11]1 study · 677 participantsModerate
Downgraded: risk of bias
Adverse effects: 6. Movement disorders ‐ specific symptoms ‐ dystonia ‐ versus low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 7.43 [1.07, 51.54]1 study · 27 participantsModerate
Downgraded: risk of bias
Adverse effects: 6. Movement disorders ‐ specific symptoms ‐ EPS: unspecified ‐ versus low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 2.28 [1.67, 3.11]1 study · 124 participantsModerate
Downgraded: risk of bias
Adverse effects: 6. Movement disorders ‐ specific symptoms ‐ tremor ‐ versus low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐LOWER DOSE (greater than or equal to 4‐<6 mg/day) vs ANY DOSE ‐ short term
RR 4.18 [1.1, 15.85]1 study · 27 participantsModerate
Downgraded: risk of bias

STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) versus ANY DOSE ‐ short term for schizophrenia (continued)

Population: patients with schizophrenia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: insufficient response ‐ When compared with ultra low dose (<2 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.6 [0.37, 0.96]2 studies · 459 participantsModerate
Downgraded: risk of bias
Leaving the study early: insufficient response ‐ When compared with low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.29 [0.17, 0.52]2 studies · 173 participantsModerate
Downgraded: risk of bias
Leaving the study early: insufficient response ‐ When compared with standard‐lower dose (greater than or equal to 4‐<6 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 1.38 [0.81, 2.34]2 studies · 496 participantsModerate
Downgraded: risk of bias
Leaving the study early: insufficient response ‐ When compared with high dose (greater than or equal to 10 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.75 [0.53, 1.08]2 studies · 941 participantsModerate
Downgraded: risk of bias
Global state: 1. No clinically important improvement ‐ CGI‐I ‐ when compared with low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.54 [0.38, 0.77]2 studies · 172 participantsModerate
Downgraded: risk of bias
Global state: 1. No clinically important improvement ‐ CGI‐I ‐ when compared with standard‐lower dose (greater than or equal to 4‐<6 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 1.26 [0.46, 3.46]1 study · 39 participantsModerate
Downgraded: risk of bias
Global state: 1. No clinically important improvement ‐ CGI‐I ‐ when compared with high dose (greater than or equal to 10 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.85 [0.59, 1.22]2 studies · 255 participantsModerate
Downgraded: risk of bias

STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) versus ANY DOSE ‐ short term for schizophrenia

Population: patients with schizophrenia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with ultra low dose (<2 mg)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.76 [0.6, 0.95]1 study · 459 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.66 [0.49, 0.9]3 studies · 196 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with standard‐lower dose (greater than or equal to 4‐<6 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.94 [0.73, 1.2]1 study · 457 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with high dose (greater than or equal to 10 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.81 [0.68, 0.96]3 studies · 941 participantsModerate
Downgraded: risk of bias
Adverse effects: EPS: unspecified ‐ Versus low dose (greater than or equal to 2‐<4 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 1.24 [0.57, 2.69]2 studies · 173 participantsModerate
Downgraded: risk of bias
Adverse effects: EPS: unspecified ‐ Versus standard‐lower dose (greater than or equal to 4‐<6 mg/day)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 2.46 [0.74, 8.14]1 study · 39 participantsModerate
Downgraded: risk of bias
Adverse effects: EPS: unspecified ‐ Versus high dose (greater than or equal to 10 mg)
STANDARD‐HIGHER DOSE (greater than or equal to 6‐<10 mg/day) vs ANY DOSE ‐ short term
RR 0.56 [0.31, 0.99]2 studies · 261 participantsModerate
Downgraded: risk of bias

HIGH DOSE (greater than or equal to 10 mg/day) versus ANY DOSE ‐ short term for schizophrenia (continued)

Population: patients with schizophrenia
6 questions
OutcomeEffectEvidenceStatus / GRADE
Leaving the study early: insufficient response ‐ When compared with ultra low dose (<2 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 0.66 [0.45, 0.97]1 study · 679 participantsModerate
Downgraded: risk of bias
Leaving the study early: insufficient response ‐ When compared with low dose (greater than or equal to 2‐<4 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 0.48 [0.25, 0.92]1 study · 70 participantsModerate
Leaving the study early: insufficient response ‐ When compared with standard‐lower dose (greater than or equal to 4‐<6 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.64 [0.96, 2.81]2 studies · 677 participantsModerate
Downgraded: risk of bias
Leaving the study early: insufficient response ‐ When compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.28 [0.82, 1.98]2 studies · 748 participantsModerate
Downgraded: risk of bias
Global state: 1. No clinically important improvement ‐ CGI‐I ‐ when compared with low dose (greater than or equal to 2‐<4 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 0.64 [0.5, 0.82]2 studies · 257 participantsModerate
Downgraded: risk of bias
Global state: 1. No clinically important improvement ‐ CGI‐I ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10 mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.18 [0.82, 1.69]2 studies · 255 participantsModerate
Downgraded: risk of bias

HIGH DOSE (greater than or equal to 10 mg/day) versus ANY DOSE ‐ short term for schizophrenia

Population: patients with schizophrenia
6 questions
OutcomeEffectEvidenceStatus / GRADE
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with ultra low dose (<2mg)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 0.89 [0.74, 1.07]1 study · 679 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with low dose (greater than or equal to 2‐<4mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 0.9 [0.73, 1.12]2 studies · 262 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with standard‐lower dose (greater than or equal to 4‐<6mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.11 [0.9, 1.36]1 study · 677 participantsModerate
Downgraded: risk of bias
Mental state: 1. No clinically important improvement ‐ PANSS ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.24 [1.05, 1.47]3 studies · 941 participantsHigh
Adverse effects: EPS: unspecified ‐ when compared with standard‐higher dose (greater than or equal to 6‐<10mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 1.79 [1.01, 3.18]2 studies · 261 participantsModerate
Downgraded: risk of bias
Adverse effects: EPS: unspecified ‐ when compared with low dose (greater than or equal to 2‐<4mg/day)
HIGH DOSE (greater than or equal to 10 mg/day) vs ANY DOSE ‐ short term
RR 2.22 [1.19, 4.14]2 studies · 262 participantsModerate
Downgraded: risk of bias