New IL-7 receptor antibody treatment for relapsed T‑cell leukemia

Early clinical development of a novel IL-7R antibody for treating children with relapsed T-cell leukemia

NIH-funded research Fannin Partners, LLC · NIH-10598447

A new antibody that targets the IL‑7 receptor is being tested as a treatment for children and adults whose T‑cell acute lymphoblastic leukemia has come back.

Quick facts

Grant typeSbir 2 grant
Study typeNIH-funded research
Funding institutionFannin Partners, LLC NIH-funded
Lab location1 site (Houston, United States)
Project IDNIH-10598447 on NIH RePORTER

What this research studies

Researchers are developing 4A10, an antibody that binds the IL‑7 receptor on T‑cell leukemia cells to block growth signals and recruit immune cells to kill the cancer. The drug showed strong anti-cancer activity in lab tests and in mice implanted with patient leukemia cells. The team has scaled up manufacturing and completed toxicology studies to support an IND filing. The next step is a first-in-human Phase 1 trial to find a safe dose and monitor side effects.

Who could benefit from this research

Good fit: Ideal candidates are children or adults with relapsed or refractory T‑cell acute lymphoblastic leukemia whose tumors express the IL‑7 receptor.

Not a fit: Patients with B‑cell ALL, cancers that do not express the IL‑7 receptor, or those who cannot join an early Phase 1 trial are unlikely to benefit from this project.

Why it matters

Potential benefit: If successful, this therapy could provide a new option for people with relapsed T‑cell ALL who currently have very limited treatments.

How similar studies have performed: Antibodies that mediate immune cell killing have benefited some blood cancers, but IL‑7 receptor–targeting in T‑ALL is a newer approach with promising preclinical but limited clinical data so far.

Where this research is happening

Houston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.