Evaluate the Long-Term Safety of Teplizumab (PRV-031), a Humanized, FcR Non-Binding, Anti-CD3 Monoclonal Antibody (PROTECT Extension)

L
Linda DiMeglio, MD

Primary Investigator

Enrolling By Invitation
8-17 years
All
Phase 3
3 participants needed
2 Locations

Brief description of study

What is the purpose of this study?
This study is the long-term extension of the PRV-031-001 (PROTECT) study. PROTECT is a Phase 3, randomized, double-blind, placebo-controlled, multinational, multi-center study to evaluate the efficacy and safety of teplizumab, a humanized, anti-CD3 monoclonal antibody, in children and adolescents ages 8 through 17 recently diagnosed with type 1 diabetes (within 6 weeks of diagnosis) in which approximately 300 participants were randomized at a ratio of 2:1 to the teplizumab or placebo and received two courses of treatment administered 6 or 12 months apart with final follow-up at approximately 18 months (78 weeks) after the first dose.  The purpose of this extension study is to evaluate the long-term safety of teplizumab in participants who previously completed the PRV-031-001 (PROTECT) study for an additional 42 months of follow-up

THIS STUDY IS ENROLLING BY INVITATION ONLY - This study is only enrolling participants who completed the PROTECT  (PRV-031-001) study.

Detailed description of study

What will happen during the study?
  • Participants who complete the PROTECT study are invited to enroll in this observational, extension study to collect long-term safety and other clinical data. The decision to participate can be made within 12 months of completing the PROTECT study.
  • No study drug will be administered during this extension study. 
  • Participants will continue to receive standard care for type 1 diabetes from their primary physicians.
  • Participants will return to the study sites for assessments once every 6 months through Month 42. Therefore, the combined duration of the PROTECT and PROTECT Extension studies will be 60 months.

Eligibility of study

You may be eligible for this study if you meet the following criteria:

  • Conditions: Type 1 Diabetes, Riley
  • Age: Between 8 Years - 17 Years
  • Gender: All

Inclusion criteria
  • Completion of the PRV-031-001 (PROTECT) study by completing the Week 78 visit in that study, regardless of how many doses of study drug were administered.
  • Provide written informed consent within 12 months of the Week 78 in the PRV-031-001 study. Written assent will be obtained for participants under 18 years of age at the time of enrollment, according to applicable regulations. If possible, written informed consent and/or assent for the current PROTECT Extension study (PRV-031-003) should be obtained at the final (Week 78) visit in the PROTECT study.
Exclusion criteria:
  • Premature discontinuation from the PRV-031-001 (PROTECT) study for any reason.

Updated on 09 Sep 2024. Study ID: PENDO-PROVENTION-PROTECT-OLE, 100262
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