This study is testing a drug called RL-007 to see if it can help people with schizophrenia think better. Schizophrenia is a mental illness that can make it hard to tell what's real and what's not. The study will find out if RL-007 helps with thinking tasks, which dose works best, and if people feel okay taking it. Participants will take RL-007 or a fake pill (placebo) for 6 weeks. They'll do thinking tasks before and after taking the pill to see if they improve. Safety checks, like blood pressure and heart tests, will make sure RL-007 is safe.

• The study lasts 6 weeks and involves taking pills and performing tasks.
• Participants must have schizophrenia and meet certain health criteria.
• Safety checks will be conducted to monitor any side effects.

To join, you must have schizophrenia and be stable on specific medication. You shouldn't have been in the hospital recently or have other major mental health issues. If you have a history of substance abuse or certain medical treatments, you may not be eligible. The study aims to understand if RL-007 can improve thinking, but participation is voluntary, and risks are monitored closely.