06/05/2026
New Study Locations: PMS Koala Study for NNZ-2591
Study Type: Interventional
Age Range: 3-12 years old
Locations: California, Illinois, Maryland, Massachusetts, New York, Ohio
This study is evaluating an investigational treatment to see if it can improve how children with Phelan-McDermid syndrome feel and function.
Open Label Extension (OLE): The Koala OLE Study is evaluating the long-term effects of the investigational study drug, NNZ-2591, in participants 3-12 years of age with PMS who completed the Phase 3 Koala Study PMS-301 or the Phase 2 Study PMS-001.
The Koala OLE study will include a screening/baseline period, a 52-week treatment period with open-label investigational drug NNZ-2591 liquid twice daily (in which there will be on-site clinic visits and a remote visit) and a 2-week follow-up period (following the last dose of the NNZ-2591).
Please email [email protected] to find out more and see if the Koala study could be a good fit for your child.