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| Methods | Randomised. |
| Participants | People with schizophrenia. |
| Interventions | Riluzole (a drug used to treat amyotrophic lateral sclerosis) versus risperidone versus placebo. |
| Outcomes | No useable data. (The grant was terminated due to slow enrolment.) |
| Notes | The paper didn't report any data relevant to pre‐defined outcomes of this review. We have contacted trial authors for further data, but haven't received any reply. |
