This study is checking how safe and comfortable a drug called aticaprant is for people with schizophrenia, a mental illness causing thoughts and feelings to be different. The study compares aticaprant with a placebo (a fake pill) to see if it's better. People can join if they're already stable on one type of medicine for schizophrenia and are seeing a doctor regularly. They shouldn't change other medicines like antidepressants for at least 8 weeks before joining. Some people can't join if they have other mental disorders, recent substance issues, or certain stomach problems. The study involves taking medicine and attending visits.
- Study involves taking medication and attending regular check-ups.
- Participants should be stable on their current schizophrenia medication.
- Some mental health or substance issues might exclude you from participating.