Anti-CD3 mAb Treatment of Recent Onset Type 1 Diabetes

August 11, 2021 updated by: Yale University

Phase II Trial of hOKT3gamma1(Ala-Ala) Teplizumab for Treatment of Patients With Recent Onset Type 1 Diabetes

This is a randomized placebo controlled study to test whether a single 14 course of treatment with the anti-CD3 monoclonal antibody, hOKT3gamma1(Ala-Ala),Teplizumab will prevent the loss of insulin secretory capacity in individuals with Type 1 diabetes of 4 - 12 months duration since diagnosis.

Study Overview

Detailed Description

The study design is a double blind placebo controlled trial that will enroll subjects between the ages of 8 - 30 who have had the diagnosis of Type 1 diabetes made 4 - 12 months prior to enrollment. A single 14 course of treatment with mAb hOKT3gamma1(Ala-Ala), Teplizumab will be given. The primary endpoint is the C-peptide response to a mixed meal at 12 months. A total of 60 subjects will be enrolled (30 in the drug treatment and 30 in the placebo groups) at 4 study sites: Yale University,the University of California at San Francisco, Children's Hospital of Philadelphia, and the Barbara Davis Diabetes Center.

Study Type

Interventional

Enrollment (Actual)

63

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Francisco, California, United States, 94143
        • University of California at San Francisco
    • Colorado
      • Aurora, Colorado, United States, 80045
        • Barbara Davis Diabetes Center
    • Connecticut
      • New Haven, Connecticut, United States, 06520
        • Yale University
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 10194
        • Children's Hospital of Philadelphia (CHOP)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

8 years to 30 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • age 8 - 30,
  • duration of diabetes 4 - 12 months,
  • weight greater than 27.5 kg,
  • stimulated C-peptide >= 0.2 pmol/ml

Exclusion Criteria:

  • asthma,
  • history of hepatitis C, hepatitis B, HIV

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
The course of Teplizumab comprises daily doses of 51 µg/m2, 103 µg/m2, 207 µg/m2, 413 µg/m2, and 10 of 826 µg/m2 over a 14 day treatment period.
This is a randomized, two-arm, double blind placebo controlled phase II trial in which 60 participants with recent-onset T1DM are randomized at a 1:1 ratio to receive Teplizumab or placebo over a 14 day treatment period. The course of Teplizumab comprises daily doses of 51 µg/m2, 103 µg/m2, 207 µg/m2, 413 µg/m2, and 10 of 826 µg/m2.
Other Names:
  • mAb hOKT3gamma1(Ala-Ala), MGA031, Teplizumab
Placebo Comparator: 2
Normal saline infusion

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
C-peptide Area Under the Curve (AUC) Response to a Mixed Meal Tolerance Test (MMTT) at 12 Months
Time Frame: At month 12 post-treatment

C-peptide secretory response was calculated as ln[(Area Under the Curve of the C-peptide from the 240 minute MMTT/240 +1]

For presentation, the C-peptide data were converted to the AUC as pmol/ml. This is adjusted for baseline.

At month 12 post-treatment
C-peptide Area Under the Curve (AUC) Response to a Mixed Meal Tolerance Test (MMTT) at Baseline
Time Frame: At Baseline (before treatment)

C-peptide secretory response was calculated as ln[(Area Under the Curve of the C-peptide from the 240 minute MMTT/240 +1]

For presentation, the C-peptide data were converted to the AUC as pmol/ml. This baseline data was used to adjust for the C-peptide AUC primary endpoint measure at 12 months.

At Baseline (before treatment)

Secondary Outcome Measures

Outcome Measure
Time Frame
Hemoglobin A1c
Time Frame: At 12 months post-treatment
At 12 months post-treatment
Average Insulin Use Over 12 Months
Time Frame: After 12 months post-treatment
After 12 months post-treatment
Baseline Insulin Use
Time Frame: At baseline (before treatment)
At baseline (before treatment)
Baseline Hemoglobin A1c
Time Frame: At baseline (before treatment)
At baseline (before treatment)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Kevan C Herold, Yale University
  • Principal Investigator: Jeffrey A Bluestone, PhD, University of California at San Francisco

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2006

Primary Completion (Actual)

August 1, 2011

Study Completion (Actual)

August 1, 2013

Study Registration Dates

First Submitted

September 18, 2006

First Submitted That Met QC Criteria

September 18, 2006

First Posted (Estimate)

September 20, 2006

Study Record Updates

Last Update Posted (Actual)

August 13, 2021

Last Update Submitted That Met QC Criteria

August 11, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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