Venetoclax-containing Therapy Combined With Microtransplant for Intermediate-risk and Higher MDS

November 20, 2025 updated by: Beijing 302 Hospital

Phase 2 Study of Venetoclax-containing Therapy in Combination With HLA-mismatched Mobilized Peripheral Blood Mononuclear Cell Infusion for Intermediate-risk and Higher Myelodysplastic Syndromes

This study aims to evaluate the safety and efficacy of a Venetoclax and hypomethylating agent-based regimen combined with infusion of HLA-mismatched donor G-CSF mobilized peripheral blood mononuclear cells (GPBMC) in patients with intermediate-risk and higher myelodysplastic syndromes who are ineligible for allogeneic hematopoietic stem cell transplantation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
      • Beijing, China, 100071
        • Recruiting
        • Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital
        • Contact:
        • Principal Investigator:
          • Bo Cai, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age >=18 years, male or female, non-limited by race or ethnicity.
  • Confirmed diagnosis of MDS according to the World Health Organization (WHO) 5th edition classification, based on histopathology and cytogenetics.
  • Risk stratification according to the Revised International Prognostic Scoring System (IPSS-R) must place the patient in the intermediate-, high-, or very high-risk category.
  • Not candidates for or refuse allogeneic hematopoietic stem cell transplantation.
  • Adequate hepatic function including alanine transaminase (ALT) and aspartate aminotransferase (AST )<= 3 × upper limit of normal(ULN), and total bilirubin <= 1.5 × ULN.
  • Adequate renal function including serum creatinine <= 2 × ULN or CrCl>= 40mL/min.
  • LVEF measured by echocardiogram is within the normal range (LVEF > 50%).
  • The subject must have one donor who is >= 18 years old and HLA matched at 0-7/10 loci (i.e., at least 3 HLA loci must be mismatched). In addition, the donor voluntarily donates hematopoietic stem cells and signs the consent form.
  • Each subject (or his/her legal representatives) must sign the Informed Consent Form (ICF), indicating that he/she understands the purpose and procedures of research, and is willing to participate in research.
  • Donor inclusion criteria: The donor meets the institution's criteria for related peripheral blood hematopoietic stem cell donors. The donor must be able to tolerate the cell separation and collection process, and sign the Informed Consent Form.

Exclusion Criteria:

  • Uncontrolled infection or hemorrhage.
  • Cardiovascular disease with clinical significance, such as uncontrolled or highly symptomatic cardiac arrhythmias, congestive heart failure, or myocardial infarction within 6 months prior to screening, or New York Heart Association (NYHA) function class 3 (moderate) or class 4 (severe) heart disease.
  • Uncontrolled autoimmune disease or requiring immunosuppression treatment.
  • History of severe blood infusion reaction.
  • Nursing women, women of childbearing potential with positive urine pregnancy test, or women of childbearing potential who are not willing to maintain adequate contraception.
  • Psychiatric disorder or cognitive impairment that in the researcher's judgment would make the subject not likely to adhere to the protocol requirements.
  • Major surgery within 4 weeks prior to enrollment.
  • Life-threatening illness other than MDS or uncontrolled intercurrent illness.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Cohort 1
This cohort includes patients with intermediate-risk and higher MDS who are ineligible for or refuse allogeneic HSCT. Patients receive Venetoclax in combination with hypomethylating agent and HLA-mismatched donor GPBMC infusion. Treatment cycles are 28 days, repeated until disease progression or unacceptable toxicity.
Drug: Venetoclax
Given PO. For the first cycle, dose of 100 mg on Day 1, 200 mg on Day 2, and 400 mg on Days 3-14. For other cycles, dose of 400 mg on Days 1-14. Note: The dose should be reduced to 100-200 mg daily if concomitant azole antifungals are required.
Drug: Azacitidine (AZA) or Decitabine (DAC)
AZA: Given SC. Dose of 75 mg/m² on Days 1-7 of each cycle. DAC: Given IV. Dose of 20 mg/m² on Days 1-5 of each cycle.
Biological: GPBMC infusion
HLA-mismatched donor GPBMCs are infused on Day 15.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Overall survival (OS)
Time Frame: Measured up to 4 years after the last participant is enrolled
OS is defined as the number of days from the date of study entry to the date of death.
Measured up to 4 years after the last participant is enrolled
Overall response rate (ORR)
Time Frame: Measured up to 2 years after the last participant is enrolled
ORR is defined as complete remission (CR) (or CR equivalent) + partial remission (PR) + CR with limited count recovery (CRL) + CR with partial hematologic recovery (CRh) + hematologic improvement (HI) according to IWG 2023 criteria.
Measured up to 2 years after the last participant is enrolled

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Partial remission (PR)
Time Frame: Measured up to 2 years after the last participant is enrolled
PR is defined as decrease of at least 50% in the percentage of blasts still ≥5% in the bone marrow, peripheral blood neutrophil count > 1 × 109/L, platelet count > 100 × 109/L, Hb ≥10 g/dL.
Measured up to 2 years after the last participant is enrolled
Modified overall response (mOR)
Time Frame: Measured up to 2 years after the last participant is enrolled
Modified OR is defined as CR+PR+CRL+CRh.
Measured up to 2 years after the last participant is enrolled
Treatment-related mortality (TRM)
Time Frame: Measured up to 2 years after the last participant is enrolled
TRM is defined as the death related to treatment instead of disease progression.
Measured up to 2 years after the last participant is enrolled
Complete remission (CR)
Time Frame: Measured up to 2 years after the last participant is enrolled
CR is defined as absolute neutrophil count > 1 × 109/L, platelet count > 100 × 109/L, Hb ≥10 g/dL, bone marrow with < 5% blasts, and PB blasts 0%.
Measured up to 2 years after the last participant is enrolled
CR with limited count recovery (CRL)
Time Frame: Measured up to 2 years after the last participant is enrolled
CRL is defined as bone marrow with less than 5% blasts, PB blasts 0%, and PB only meeting 1 or 2 of the following: absolute neutrophil count > 1 × 109/L, platelet count > 100 × 109/L, Hb ≥10 g/dL.
Measured up to 2 years after the last participant is enrolled
CR with partial hematologic recovery (CRh)
Time Frame: Measured up to 2 years after the last participant is enrolled
CRh is defined as bone marrow with less than 5% blasts, and PB not meeting criteria for CR or CRL, no Hb threshold required, platelets ≥50 × 109/L, neutrophils ≥0.5 × 109/L, blasts 0%.
Measured up to 2 years after the last participant is enrolled
Progression-free survival (PFS)
Time Frame: Measured up to 4 years after the last participant is enrolled
PFS is defined as the number of days from the date of study entry to the date of the first of the following events: progressed disease; relapse from CR (or CR equivalent), PR, CRL, CRh, or HI; death from any cause.
Measured up to 4 years after the last participant is enrolled

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Beijing 302 Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bo Cai, MD, Department of Hematology, the Fifth Medical Center of Chinese PLA General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 20, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 16, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 16, 2025

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 20, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 20, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • VEN-MST for MDS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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