for people ages 8-17 (full criteria)
at San Francisco, California and other locations
study started
estimated completion



The purpose of this study is to determine whether teplizumab slows the loss of β cells and preserves β cell function in children and adolescent 8-17 years old who have been diagnosed with T1D in the previous 6 weeks..

Subjects will receive two courses of either teplizumab or placebo treatment 6 months apart.

Official Title

Phase 3 Randomized Double-Blind Multinational Placebo-Controlled Study to Evaluate Efficacy and Safety of Teplizumab, a Humanized FcR Non-Binding Anti-CD3 Monoclonal Antibody, in Children and Adolescents With Newly Diagnosed Type 1 Diabetes


This 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). Approximately 300 participants will be randomized at a ratio of 2:1 to either the teplizumab group or the placebo group.

Teplizumab or matching placebo will be administered in two courses 6 months apart. Each course of treatment will include daily infusions for 12 days. The total study duration for each participant will be up to 86 weeks.

The primary objective is to determine whether two courses of teplizumab administered 6 months apart slows the loss of β cells and preserves β cell function over 18 months (78 weeks) in children and adolescents 8-17 years old who have been diagnosed with T1D in the previous 6 weeks.

The secondary objectives are to evaluate improvements in key clinical parameters of diabetes management, to determine the safety and tolerability of teplizumab, and to evaluate the pharmacokinetics (PK) and immunogenicity of teplizumab


Type 1 Diabetes Mellitus, T1D, type 1 diabetes, recent-onset T1D, Diabetes Mellitus, teplizumab


You can join if…

Open to people ages 8-17

  1. Is 8 to 17 years of age, inclusive, at the time of randomization/initiation of study drug administration.
  2. Has received a diagnosis of T1D according to the criteria from the American Diabetes Association.
  3. Is able to be randomized and initiate study drug within 6 weeks (42 days) of the formal T1D diagnosis.
  4. Has a peak stimulated C-peptide of ≥0.2 pmol/mL from a mixed meal tolerance test (MMTT) at screening.
  5. Has a positive result on testing for T1D-related autoantibodies.

You CAN'T join if...

  1. Has any autoimmune disease other than T1D with the exception of stable thyroid or celiac disease.
  2. Has an active infection and/or fever.
  3. Has a history of or serologic evidence at screening of current or past infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV).
  4. An individual who has a medical, psychological or social condition that, in the opinion of the Principal Investigator, would interfere with safe and proper completion of the trial.


  • UCSF Medical Center (Site 001)
    San Francisco California 94158 United States
  • Diablo Clinical Research, Inc. (Site 002)
    Walnut Creek California 94598 United States


in progress, not accepting new patients
Start Date
Completion Date
Provention Bio, Inc.
Phase 3 research study
Study Type
Expecting 300 study participants
Last Updated