Immune Effects of Oral Insulin in Relatives at Risk for Type 1 Diabetes Mellitus (TN20)
Exploring Immunologic Effects of Oral Insulin in Relatives at Risk for Type 1
3 other identifiers
interventional
92
4 countries
19
Brief Summary
The study is a 2 arm, multi-center, randomized, open-labeled clinical trial designed to assess the effects of varying doses and schedules of oral insulin on immunological and metabolic markers in relatives at risk for type 1 diabetes (T1D).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jan 2016
19 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 30, 2015
CompletedFirst Posted
Study publicly available on registry
October 20, 2015
CompletedStudy Start
First participant enrolled
January 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2018
CompletedResults Posted
Study results publicly available
July 27, 2020
CompletedJuly 27, 2020
July 1, 2020
2.2 years
September 30, 2015
February 4, 2020
July 24, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Change in GAD65 Autoantibody Titer (DK Units/mL)
Change in T-lymphocyte (GAD65) biomarker of beta cell specific immune response
13 and 26 weeks after first dose versus baseline
Change in mIAA Autoantibody Titer From Baseline
Micro-islet autoantibodies (mIAA) autoantibody titers are a measure of of beta cell immune response
13 and 26 weeks after first dose versus baseline
Study Arms (2)
67.5 mg oral insulin crystals daily
EXPERIMENTAL67.5 mg oral insulin crystals in capsules (by mouth or sprinkled on food) given daily for six months
500mg oral insulin crystals every other week
EXPERIMENTAL500 mg oral insulin crystals in capsules (by mouth or sprinkled on food) given every other week for six months
Interventions
human insulin crystals in capsules
human insulin crystals in capsules
Eligibility Criteria
You may qualify if:
- Participants in TrialNet Natural History/Pathway to Prevention Study (TN01); is relative of proband with type 1 diabetes
- Between ages 3-45 with normal Oral Glucose Tolerance Test (OGTT) or between ages 3-7 with an abnormal OGTT
- Confirmed positive for insulin autoantibodies within previous six months
- Confirmed positive for one or more other autoantibodies on two separate occasions within the past six months
You may not qualify if:
- Diagnosed with type 1 diabetes
- History of treatment with insulin or oral hypoglycemic agent
- History of therapy with immunosuppressive drugs or non-physiologic glucocorticoids within the past two years for a period of more than three months
- Ongoing use of medications known to influence glucose tolerance
- Pregnant or intending to become pregnant while on study or lactating
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (19)
University of California - San Francisco
San Francisco, California, 94158-2549, United States
Stanford University
Stanford, California, 94305, United States
Barbara Davis Center for Childhood Diabetes
Aurora, Colorado, 80109, United States
University of Florida
Gainesville, Florida, 32610, United States
University of Miami
Miami, Florida, 33136, United States
University of South Florida
Tampa, Florida, 33612, United States
Emory Children's Center
Atlanta, Georgia, 30322, United States
University of Chicago
Chicago, Illinois, 60637, United States
Indiana University-Riley Hospital for Children
Indianapolis, Indiana, 46202, United States
Joslin Diabetes Center
Boston, Massachusetts, 02215, United States
Columbia University-Naomi Berrie Diabetes Center
New York, New York, 10032, United States
University of Pittsburgh
Pittsburgh, Pennsylvania, 15224, United States
Vanderbilt University
Nashville, Tennessee, 37232, United States
University of Texas Southwestern
Dallas, Texas, 75390, United States
Baylor College of Medicine
Houston, Texas, 77030, United States
Benaroya Research Institute
Seattle, Washington, 98101, United States
Walter and Eliza Hall Institute of Medical Research
Parkville, Victoria, 3050, Australia
The Hospital for Sick Children
Toronto, Ontario, Canada
San Raffaele Hospital
Milan, Italy
Related Publications (3)
Skyler JS, Krischer JP, Wolfsdorf J, Cowie C, Palmer JP, Greenbaum C, Cuthbertson D, Rafkin-Mervis LE, Chase HP, Leschek E. Effects of oral insulin in relatives of patients with type 1 diabetes: The Diabetes Prevention Trial--Type 1. Diabetes Care. 2005 May;28(5):1068-76. doi: 10.2337/diacare.28.5.1068.
PMID: 15855569BACKGROUNDBonifacio E, Ziegler AG, Klingensmith G, Schober E, Bingley PJ, Rottenkolber M, Theil A, Eugster A, Puff R, Peplow C, Buettner F, Lange K, Hasford J, Achenbach P; Pre-POINT Study Group. Effects of high-dose oral insulin on immune responses in children at high risk for type 1 diabetes: the Pre-POINT randomized clinical trial. JAMA. 2015 Apr 21;313(15):1541-9. doi: 10.1001/jama.2015.2928.
PMID: 25898052BACKGROUNDJacobsen LM, Schatz DA. Insulin immunotherapy for pretype 1 diabetes. Curr Opin Endocrinol Diabetes Obes. 2021 Aug 1;28(4):390-396. doi: 10.1097/MED.0000000000000648.
PMID: 34091488DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Carla Greenbaum, MD
- Organization
- Benaroya Research Institute
Study Officials
- STUDY CHAIR
Carla Greenbaum, MD
Type 1 Diabetes TrialNet
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 30, 2015
First Posted
October 20, 2015
Study Start
January 1, 2016
Primary Completion
March 1, 2018
Study Completion
March 1, 2018
Last Updated
July 27, 2020
Results First Posted
July 27, 2020
Record last verified: 2020-07
Data Sharing
- IPD Sharing
- Will share
Data will be available at the NIDDK Central Repository