Testing VIP943 for advanced blood cancers

An Open-label, Multicenter Phase 1 Study to Characterize Safety, Tolerability, Preliminary Antitumor Activity, Pharmacokinetics, and Pharmacodynamics of VIP943 Monotherapy in Subjects With Advanced CD123+ Hematologic Malignancies

Phase 1 Interventional Vincerx Pharma, Inc. · NCT06034275

This study is testing a new drug called VIP943 to see if it can safely help people with advanced blood cancers like leukemia and myelodysplastic syndrome who have run out of other treatment options.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment36 (estimated)
Ages18 Years and up
SexAll
SponsorVincerx Pharma, Inc. Industry-sponsored
Locations5 sites (Birmingham, Alabama and 4 other locations)
Trial IDNCT06034275 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the safety and tolerability of VIP943 in patients with advanced CD123+ hematologic malignancies, including acute myeloid leukemia (AML), B-cell acute lymphoblastic leukemia (B-ALL), and high-risk myelodysplastic syndrome (MDS). It aims to determine the maximum tolerated dose (MTD) or the minimum optimal biologic dose (OBD) through a dose escalation approach. Participants must have exhausted all standard therapies or be ineligible for available treatments, and the study will assess drug activity based on the presence of specific blood or bone marrow blasts.

Who should consider this trial

Good fit: Ideal candidates include individuals with relapsed or refractory AML, B-ALL, or MDS who are CD123 positive and have exhausted standard therapies.

Not a fit: Patients with known central nervous system metastases or significant cardiac disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced blood cancers who have limited treatment choices.

How similar studies have performed: Other studies targeting CD123 in hematologic malignancies have shown promise, indicating potential for success with this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically confirmed AML, B-ALL or MDS. Subjects must have exhausted all available standard therapies or be deemed ineligible for potential available therapies.
* Evidence of ≥5% bone marrow or blood blasts (acute leukemia) or ≥5% bone marrow or blood myeloblasts (MDS) to allow for assessment of drug activity.
* Evidence of CD123 expression from a local laboratory.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2

Exclusion Criteria:

* Known central nervous system (CNS) metastases and/or carcinomatous meningitis.
* Clinically significant cardiac disease including congestive heart failure \> New York Heart Association (NYHA) Class II), evidence for coronary artery disease (eg, unstable angina (anginal symptoms at rest) or new-onset angina (within the last 6 months or myocardial infarction within the past 6 months before first dose.

Where this trial is running

Birmingham, Alabama and 4 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Acute Myeloid LeukemiaB-cell Acute Lymphoblastic LeukemiaHigh-risk Myelodysplastic SyndromeADCHematologic MalignanciesLeukemiaCD123B-ALL
Last reviewed 2026-06-09 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.