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A Study of GNTI-122 in Adults Recently Diagnosed With T1D
Sponsor: GentiBio, Inc
Summary
This is a 78-week single arm, multi-center, Phase 1 study to evaluate the safety, tolerability, cellular kinetics, and biomarker changes in C-peptide over time of GNTI-122, an investigational cell therapy manufactured from a participant's own blood cells in adult participants with recently diagnosed T1D. After assessment of eligibility, participants who qualify for the study will be enrolled sequentially in 1 of 3 cohorts. Cohort 1 participants (n=3) receive a low dose of GNTI-122 . Cohort 2 participants (n=3) receive a high dose of GNTI-122. Cohort 3 participants (n=10) receive a high dose of GNTI-122 in combination with rapamycin. Participants are followed for 78 weeks after the administration of GNTI-122 during which safety and efficacy assessments are made, including vital signs, ECG, physical exam, clinical labs, and monitoring of adverse events and concomitant medications. Disease markers (e.g., MMTT-stimulated C-peptide, HbA1c) and pharmacodynamic activity (e.g., lymphocyte subsets and phenotypes, effector T cell responses to islet antigens ex vivo, T1D autoantibodies) will be monitored serially throughout the study. The study will include sentinel dosing and a Safety Review Committee to ensure participant safety. Visit https://www.polarisstudy.com to learn more!
Official title: POLARIS: A Phase 1, Single Dose, Open-label Study of GNTI-122 in Adults With Recently Diagnosed Type 1 Diabetes (T1D)
Key Details
Gender
All
Age Range
18 Years - 45 Years
Study Type
INTERVENTIONAL
Enrollment
16
Start Date
2025-09-03
Completion Date
2028-02
Last Updated
2026-03-27
Healthy Volunteers
No
Interventions
GNTI-122
GNTI-122 is an investigational cell therapy manufactured from a participant's own blood cells and is intended to help correct an imbalance of certain types of cells found in participants with Type 1 Diabetes.
Locations (10)
City of Hope Medical Center
Duarte, California, United States
University of California - San Diego
San Diego, California, United States
University of California - San Francisco
San Francisco, California, United States
University of Florida - Gainesville
Gainesville, Florida, United States
University of Miami, Diabetes Research Institute
Miami, Florida, United States
Joslin Diabetes Center
Boston, Massachusetts, United States
Icahn School of Medicine at Mount Sinai
New York, New York, United States
Columbia University
New York, New York, United States
University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, United States
Duke University
Durham, North Carolina, United States