Tr1X

ABOUT

Tr1X is a private, clinical-stage biotechnology company focused on developing a novel class of regulatory T cell-based products to cure autoimmune and inflammatory diseases and transform patient lives. Founded by industry experts, including the scientists who discovered Type 1 regulatory T (Tr1) cells, the company is developing a pipeline of off-the-shelf allogeneic cell therapies to treat and potentially cure autoimmune diseases with high unmet medical need. Our novel regulatory T cell-based therapeutics are designed to mimic the function of naturally occurring Tr1 cells, an important subset of regulatory cells, which work to restore immune tolerance, stopping severe autoimmune and inflammatory diseases in their tracks. Tr1X is the first company ever to use an allogeneic engineered Tr1 cell therapy in clinical trials. Tr1X is headquartered in San Diego, CA. For more information, please visit www.tr1x.bio.

4242 Campus Point Court, Suite 500, San Diego, CA 92121
  • NextGen Class of 2025
FEATURED NEWS
On track to initiate TRX319 Phase 1/2a dose-escalation trial in early 2026
TRX319 is an allogeneic CAR-Tr1 Treg cell therapy designed to pair targeted B-cell control with active anti-inflammatory signaling and pathogenic T-cell modulation in a CNS-penetrant package
Tr1X, a clinical-stage biopharmaceutical company developing first-in-class allogeneic engineered Treg and CAR-Treg cell therapies with the potential to cure autoimmune and inflammatory diseases, today announced that the California Institute for Regenerative Medicine (CIRM) has awarded the Company an $8 million grant to support its ongoing Phase 1/2a clinical trial of TRX103, an engineered Tr1 Treg cell therapy for use in the prevention of graft-versus-host disease (GvHD) in blood cancer patients undergoing mismatched stem cell transplants.
Tr1X Plans to Initiate a Phase 1/2a study and Dose the First Patient by the End of 2024
NEWS
The inaugural 40 Under 40 cohort includes CEOs, leaders who have founded or co-founded their company and executives from a range of disciplines. Winners’ accomplishments include shaping drug development, achieving key FDA milestones and launching a new field of study.
From ADCs and radiopharmaceuticals to cell and gene therapies, eager young startups are betting on advances in biopharma’s most competitive therapeutic spaces—and attracting dollars from Big Pharma.
The San Diego-based startup, specializing in allogeneic engineered Treg and CAR-Treg cell therapies, plans to be in Phase I clinical trials in multiple indications in 2024.
IN THE PRESS
JOBS