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RECRUITING
NCT06919354
PHASE1

A Study of GNTI-122 in Adults Recently Diagnosed With T1D

Sponsor: GentiBio, Inc

View on ClinicalTrials.gov

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

BIOLOGICAL

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