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Tagraxofusp-erzs, an IL-3 Diphtheria Fusion Protein, in Combination With Gemtuzumab Ozogamicin in Patients With Relapsed/Refractory AML

NCT05716009 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2025-05-06

No results posted yet for this study

Summary

This is an open-label Phase Ia/Ib clinical study of tagraxofusp-erzs, a novel cytokine-drug conjugate that links interleukin-3 with a truncated diphtheria toxin, in combination with gemtuzumab ozogamicin for patients with relapsed/refractory AML.

The primary objective of the study is to determine the recommended phase 2 dose (RP2D) of tagraxofusp-erzs in combination with gemtuzumab ozogamicin in this patient population. Then, once RP2D is determined, to determine the safety and tolerability of combination gemtuzumab and tagraxofusp-erzs when administered at the RP2D.

Conditions

Interventions

DRUG

Dose Escalation -tagraxofusp-erzs

Sequential dose levels of tagraxofusp-erzs dependent on patient response. Fixed doses of gemtuzumab ozogamicin 3mg/m2/day on days 1, 4, and 7 of cycle 1 then on Day 1 or all subsequent cycles for a total of 3 cycles.

DRUG

Dose Expansion at RP2D -tagraxofusp-erzs

Following the dose escalation portion, the expansion dose and schedule (RP2D) will be determined. Patients will continue to receive fixed doses of gemtuzumab ozogamicin 3mg/m2/day on days 1, 4, and 7 of cycle 1 then on Day 1 or all subsequent cycles for a total of 3 cycles.

Sponsors & Collaborators

  • StemlineTherapeutics, Inc.

    collaborator UNKNOWN

  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    lead OTHER

Principal Investigators

  • Alexander Ambinder, MD · SKCCC Johns Hopkins Medical Institution

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
12 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-11-20
Primary Completion
2027-12-25
Completion
2028-12-25
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05716009 on ClinicalTrials.gov