Ethnic differences in response to atypical antipsychotics in patients with schizophrenia: individual patient data meta-analysis of randomised placebo-controlled registration trials submitted to the Dutch Medicines Evaluation Board.

Background: Little is known about the effect of ethnicity on the response to antipsychotic medication in patients with schizophrenia.

Aims: To determine whether ethnicity moderates the response to antipsychotic medication in patients with schizophrenia, and whether this moderation is independent of confounders.

Method: We analysed 18 short-term, placebo-controlled registration trials of atypical antipsychotic medications in patients with schizophrenia ( = 3880).