This study is for adults with schizophrenia (a mental disorder that affects how a person thinks and feels) who were in a previous CONNEX study. The goal is to see if a drug called **Iclepertin** is safe to use for a long time. Participants will take Iclepertin tablets once a day for a year. They will also continue their regular medication for schizophrenia. The study lasts a little over a year, with participants visiting the study site about 13 times and receiving around 9 phone calls. Doctors will check for any health problems and monitor schizophrenia symptoms.

• The study lasts a bit over 1 year with 13 visits and 9 phone calls.
• Participants must have been part of a previous CONNEX study.
• Participants take Iclepertin daily along with their usual medications.