Amisulpride versus other atypical antipsychotics for schizophrenia
Evidence Summaries
Evidence Summaries
Level of Evidence = D
A Cochrane review 1 included 10 RCTs with a total of 1549 patients with schizophrenia or schizophrenia-like psychosis. Amisulpride was compared with olanzapine, risperidone and ziprasidone, the duration of studies ranged from 6 to 26 weeks. The outcome in most of the reports was the number of patients leaving early due to any reason, adverse events and lack of efficacy. The overall attrition rate was considerable (34.7%) with no significant difference between the groups. Amisulpride was as effective as olanzapine and risperidone and more effective than ziprasidone as regards leaving the study early due to inefficacy (RR 0.21, 95%CI 0.05 to 0.94, NNT 8, 95%CI 5 to 50; 1 RCT, n=123). Amisulpride induced less weight gain than risperidone (MD -0.99, 95%CI -1.61 to -0.37; 3 RCTs, n=585) or olanzapine (MD -2.11, 95%CI -2.94 to -1.29; 3 RCTs, n=671). Olanzapine was also associated with a higher increase of glucose (MD -7.30, 95%CI -7.62 to -6.99; 2 RCTs, n=406). There was no difference in terms of cardiac effects and extrapyramidal symptoms compared with olanzapine (akathisia: RR 0.66, 95%CI 0.36 to 1.21; 2 RCTs, n= 587), risperidone (akathisia: RR 0.80, 95%CI 0.58 to 1.11; 3 RCTs, n=586) or ziprasidone (akathisia: RR 0.63, 95%CI 0.11 to 3.67; 1 RCT, n=123).
Comment: The quality of evidence is downgraded by study quality (unclear allocation concealment, more than 20% loss to follow up), reporting bias (most included studies were conducted by pharmaceutical companies) and indirectness (short follow-up).
References
References
1. Komossa K, Rummel-Kluge C, Hunger H, Schmid F, Schwarz S, Silveira da Mota Neto JI, Kissling W, Leucht S. Amisulpride versus other atypical antipsychotics for schizophrenia. Cochrane Database Syst Rev 2010 Jan 20;(1):CD006624. [PMID:20091599]
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Citation
"Amisulpride Versus Other Atypical Antipsychotics for Schizophrenia." Evidence-Based Medicine Guidelines, Duodecim Medical Publications Limited, 2019. Evidence Central, evidence.unboundmedicine.com/evidence/view/EBMG/454048/all/Amisulpride_versus_other_atypical_antipsychotics_for_schizophrenia.
Amisulpride versus other atypical antipsychotics for schizophrenia. Evidence-Based Medicine Guidelines. Duodecim Medical Publications Limited; 2019. https://evidence.unboundmedicine.com/evidence/view/EBMG/454048/all/Amisulpride_versus_other_atypical_antipsychotics_for_schizophrenia. Accessed December 7, 2019.
Amisulpride versus other atypical antipsychotics for schizophrenia. (2019). In Evidence-Based Medicine Guidelines. Available from https://evidence.unboundmedicine.com/evidence/view/EBMG/454048/all/Amisulpride_versus_other_atypical_antipsychotics_for_schizophrenia
Amisulpride Versus Other Atypical Antipsychotics for Schizophrenia [Internet]. In: Evidence-Based Medicine Guidelines. Duodecim Medical Publications Limited; 2019. [cited 2019 December 07]. Available from: https://evidence.unboundmedicine.com/evidence/view/EBMG/454048/all/Amisulpride_versus_other_atypical_antipsychotics_for_schizophrenia.
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