First-in-human Study of 4A10 for Relapsed or Hard-to-Treat ALL or Lymphoblastic Lymphoma

This is a first-in-human clinical trial testing a new antibody drug called 4A10 for patients aged 18 and older with acute lymphoblastic leukemia (ALL) or lymphoblastic lymphoma that has come back or is hard to treat. 4A10 is a targeted therapy that works by attaching to a specific protein (CD127) on cancer cells, blocking their growth, and helping your immune system fight them. You would receive 4A10 through an IV once a week. The main goals are to see if 4A10 is safe, find the right dose, understand how your body handles it, and look for early signs that it might be working. This study is currently recruiting, with a plan for 24 participants.

Study design
This is an interventional study with a planned enrollment of 24 participants. It is a first-in-human study, meaning it's the first time this drug is being tested in people.
What's involved
You would receive 4A10 through an intravenous (IV) infusion once a week. The study duration is an average of 1 year.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for an average of 1 year to monitor for side effects and determine the recommended dose.

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NCT07586618

First-in-human Study of a New Treatment (4A10) for Patients With Relapsed or Hard-to-treat Acute Lymphoblastic Leukemia or Lymphoblastic Lymphoma, Focused on Safety and How the Drug Behaves in the Body and Early Signs of Effect.

Recruiting
PHASE1Ages 18+InterventionalTreatment
Allterum Therapeutics, Inc
~24 participants
Updated 2026-07-28 on ClinicalTrials.gov
What's tested:4A10

At a glance

Recruiting sites
3 of 5 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Incidence of Treatment-Emergent Adverse Events (TEAEs) at each dose level
Measured over Through study duration, an average of 1 year
+1 more outcome measured
Lymphoblastic Lymphoma
Acute Lymphoblastic Leukemia ALL
5 sites across 4 states
Texas2
Colorado1
New York1
Pennsylvania1
  • Eric Schafer, MD · STUDY_CHAIR · Baylor College of Medicine

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  • Incidence of Treatment-Emergent Adverse Events (TEAEs) at each dose levelThrough study duration, an average of 1 year

    Assessment of safety and tolerability of 4A10 as measured by the incidence, severity, and relationship of treatment-emergent adverse events, as graded by CTCAE v6, in participants receiving study treatment at each dose-level in the 3+3 dose escalation study design.

  • Determine the Recommended Phase 2 Dose (RP2D)/ Recommended Dose for Expansion (RDE) of 4A10 as a single agent in patients with R/R ALL/LL.Through study duration, an average of 1 year

    Determination of the RP2D/RDE of ALT-101 based on evaluation of safety, tolerability, and available pharmacokinetic and pharmacodynamic data following dose-escalation.