Using vinblastine to reduce white blood cell counts in newly diagnosed AML patients

Vinblastine Versus Oral Hydroxiurea in Newly Diagnosed AML With Hyperleukocytosis: a Phase 2 Clinical Study

PHASE2 · Hospital Universitario Dr. Jose E. Gonzalez · NCT05062278

This study tests if a single dose of vinblastine can help lower high white blood cell counts in people who have just been diagnosed with acute myeloid leukemia.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment46 (estimated)
Ages18 Years and up
SexAll
SponsorHospital Universitario Dr. Jose E. Gonzalez (other)
Drugs / interventionschemotherapy
Locations1 site (Monterrey, Nuevo Leon)
Trial IDNCT05062278 on ClinicalTrials.gov

What this trial studies

This phase 2 trial investigates the effectiveness of a single dose of vinblastine in reducing high white blood cell counts in patients with newly diagnosed acute myeloid leukemia (AML) and hyperleukocytosis. Participants will be randomly assigned to receive either vinblastine or hydroxyurea, with the goal of comparing the efficacy and safety of these two treatments. The study aims to provide insights into a potential new approach for managing this condition, which currently lacks sufficient clinical trial data.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old with newly diagnosed non-M3 AML and leukocyte counts of 50x10^6/L or higher.

Not a fit: Patients with acute promyelocytic leukemia (APL) or those with poor functional status, active infections, or who are pregnant may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could offer a new option for effectively managing high white blood cell counts in AML patients, potentially improving their overall treatment outcomes.

How similar studies have performed: While there is limited clinical trial data specifically on vinblastine for this indication, the approach of leukoreduction in AML has been explored in other contexts, suggesting potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age \>18 years
2. Both genders
3. Diagnosis of non-M3 AML by the WHO 2016 diagnostic criteria
4. Patients eligible and not eligible for transplant
5. Patients eligible and not eligible for intensive treatment
6. AML secondary to treatment or associated to myelodisplasia
7. Leukocytes ≥50x106/L
8. Not being able to receive chemotherapy in the next two days

Exclusion Criteria:

1. AML with PMP/RAR-alfa translocation t(15;17)
2. Poor functional status (ECOG\>2)
3. Active infection
4. Pregnancy

Where this trial is running

Monterrey, Nuevo Leon

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.

View on ClinicalTrials.gov →

Conditions: AML, Hyperleukocytosis

Last reviewed 2026-05-15 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.