๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-05-07

CLOZAPINE Response in Biotype-1 (NCT04580134)

Antipsychotic Response to Clozapine in B-SNIP Biotype-1 (Clozapine)

๐ŸŸข Recruiting Phase4 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: University of Texas Southwestern Medical Center

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The CLOZAPINE study is designed as a multisite study across 5 sites and is a clinical trial, involving human participants who are prospectively assigned to an intervention. The study will utilize a stringent randomized, double-blinded, parallel group clinical trial design. B2 group will serve as psychosis control with risperidone as medication control. The study is designed to evaluate effect of clozapine on the B1 participants, and the effect that will be evaluated is a biomedical outcome. The study sample will be comprised of individuals with psychosis, including 1) schizophrenia, 2) schizoaffective disorder and 3) psychotic bipolar I disorder. The investigators plan to initially screen and recruit n=524 (from both the existing B-SNIP library and newly-identified psychosis cases, \~50% each) in order to enroll n=320 (B1 and B2) into the RCT.

Who can join: Review the eligibility criteria below.

Location: Hartford Healthcare โ€” Hartford, Connecticut

Age range: 18 Years to 60 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (5 Sites)

  • Hartford Healthcare โ€” Hartford, Connecticut
  • University of Georgia โ€” Athens, Georgia
  • University of Chicago โ€” Chicago, Illinois
  • Beth Israel Deaconess Medical Center โ€” Boston, Massachusetts
  • UT Southwestern Medical Center โ€” Dallas, Texas

๐Ÿ“ž Contact the Study Coordinator

Phone: (214) 648-5276

Email: asha.philip@utsouthwestern.edu

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

Explore by condition: All Schizophrenia clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—