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Related Donors Donating PBSC to a Family MemberPhase 2NCT04762875

MGTA-145 + Plerixafor in the Mobilization of HSCs for Allogeneic Transplant in Hematologic Malignancies

A Phase 2 study testing MGTA-145 and Plerixafor in people with Related Donors Donating PBSC to a Family Member and Healthy Donors, run by Ensoma at 8 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This research study tests a new medicine for mobilizing stem cells so they can be collected and used for allogeneic stem cell transplant for treatment of hematological malignancies. MGTA-145, the new medicine, will be given with plerixafor. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
MGTA-145 and Plerixafor
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
7 participants
Where
8 sitesUnited States
Study dates
16 Jun 2021to 14 Mar 2022
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Donor Inclusion Criteria:
  • Donor medical suitability and eligibility will be determined following Institution or NMDP/Be The Match standards
  • Age 18-65 years old at the time of signing informed consent
  • 8/8 (HLA- A, B, C, and DRB1) HLA-matched sibling or volunteer unrelated donor
  • Fulfill Institution or NMDP/Be The Match criteria to serve as a mobilized blood cell donor
  • Serum creatinine < 1.5 x institution upper limit of normal (ULN) or estimated creatinine clearance (CRCL) > 50 mL/min using the Modification of Diet in Renal Disease Study (MDRD) equation or similar method
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  • Recipient Inclusion Criteria:
  • At least 18 years old at the time of signing informed consent
  • Has an available 8/8 (HLA- A, B, C, and DRB1) HLA-matched sibling or volunteer unrelated donor willing to donate peripheral blood stem cells (PBSC) for transplant
  • Fulfill additional individual Transplant Center Criteria for transplant beyond NMDP/Be The Match criteria
  • One of the following diagnoses:
  • Acute myelogenous leukemia (AML) in 1st remission or beyond with ≤ 5% marrow blasts and no circulating blasts. Documentation of bone marrow assessment will be accepted within 45 days prior to the date of consent.
  • Acute lymphoblastic leukemia (ALL) in 1st remission or beyond with ≤ 5% marrow blasts and no circulating blasts. Documentation of bone marrow assessment will be accepted within 45 days prior to the date of consent.
  • Patients with myelodysplasia (MDS) with no circulating blasts and with less than 10% blasts in the bone marrow (higher blast percentage allowed in MDS due to lack of differences in outcomes with < 5% or 5-10% blasts in MDS). Documentation of bone marrow assessment will be accepted within 45 days prior to the date of consent.
  • Cardiac function: Left ventricular ejection fraction at least 45% based on most recent echocardiogram or MUGA results obtained via standard of care
  • Estimated creatinine clearance acceptable per local institutional guidelines
  • Pulmonary function: diffusing capacity of the lungs for carbon monoxide (DLCO) corrected for hemoglobin at least 50% and forced expiratory volume in first second (FEV1) predicted at least 50% based on most recent DLCO results obtained via standard of care
  • Liver function acceptable per local institutional guidelines
  • Karnofsky performance status (KPS) of 70% or greater
  • Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) score of 4 or less

Who cannot join

  • Donor Exclusion Criteria:
  • Donor unwilling or unable to give informed consent, or unable to comply with the protocol including required follow-up and testing
  • Donor already enrolled on another investigational agent study
  • Pregnant or breastfeeding females, sexually active female and male donors not willing or able to use adequate contraception, or males who do not agree to refrain from donating sperm, from the time of consent through 3 months after treatment with MGTA-145 + plerixafor
  • Recipient Exclusion Criteria:
  • Subject unwilling or unable to give informed consent, or unable to comply with the protocol including required follow-up and testing
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  • Subject whose donor does not meet the eligibility criteria and is a screen fail
  • Subjects with a prior allogeneic transplant
  • Subjects with active, uncontrolled infection at the time of the transplant preparative regimen
  • Pregnant or breastfeeding females, sexually active female or male subjects not willing or able to use adequate contraception, or males who do not agree to refrain from donating sperm, from the time of consent through 3 months after PBSC infusion
  • Subjects with clinical evidence of active Central Nervous System (CNS) tumor involvement as evidenced by documented disease on examination of spinal fluid or MRI within 45 days of start of conditioning
  • A condition, which, in the opinion of the clinical investigator, would interfere with the evaluation of primary and secondary endpoints
  • Planned treatment with a new investigational agent from the time of transplant through 30 days post-transplant

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

United States8 sites
  • Emory University Hospital

    Atlanta, Georgia, 30322

  • Roswell Park Cancer Institute

    Buffalo, New York, 14203

  • Ohio State Medical Center, James Cancer Center

    Columbus, Ohio, 43210

  • City of Hope National Medical Center

    Duarte, California, 91010

  • M.D. Anderson Cancer Center

    Houston, Texas, 77030

  • Mayo Clinic Rochester

    Rochester, Minnesota, 55902

  • Be The Match Collection Center Seattle

    Seattle, Washington, 98101

  • Stanford Health Care

    Stanford, California, 94305

Other trials in United States

About this study

Official title: A Phase II Study Evaluating the Safety and Efficacy of MGTA-145 in Combination With Plerixafor for the Mobilization and Transplantation of HLA-Matched Donor Hematopoietic Stem Cells in Recipients With Hematological Malignancies

This research study tests a new medicine for mobilizing stem cells so they can be collected and used for allogeneic stem cell transplant for treatment of hematological malignancies. MGTA-145, the new medicine, will be given with plerixafor.

Read the detailed description

This is a Phase II, open-label, multicenter, prospective study of MGTA-145 + plerixafor mobilized HLA-matched sibling and matched unrelated donor allografts for myeloablative hematopoietic stem cell transplantation (HSCT) in recipients with hematological malignancies. Donors will undergo 1 or 2 days of mobilization and apheresis.

Being tested
MGTA-145, Plerixafor
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Myelodysplastic Syndromes

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MGTA-145Biological

    MGTA-145 will be be administered as an IV infusion

  • PlerixaforBiological

    Also called Mozobil

    240 µg/kg subcutaneously

Study groups in NCT04762875
Study groupRoleWhat they receive
Single dose MGTA-145 plus plerixafor followed by apheresisExperimentalMGTA-145 in combination with plerixafor followed by apheresis on one or two consecutive days
Receives: Biological: MGTA-145; Biological: Plerixafor

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. HSC Yield in Apheresis Product

    Number of subjects with adequate number of hematopoietic stem cells (≥ 2.0 x 10^6 CD34+ cells/kg) in one apheresis setting.

    Measured: Up to 2 days

Secondary outcomes (6)
  1. HSC Yield in Apheresis Product

    To determine the proportion of donors whose cells can be successfully mobilized and collected with a target CD34+ cell dose of at least 4.0 x 10^6 CD34+ cells/kg actual recipient weight in one apheresis collection

    Measured: Up to 2 days

  2. Adverse Events Experienced by Donors

    To ascertain the incidence of adverse events (AEs) before and during apheresis experienced by donors receiving MGTA-145 + plerixafor

    Measured: Baseline though day 180

  3. Graft Durability

    The proportion of participants with primary and secondary graft failure after transplantation of hematopoietic cells mobilized with MGTA-145 + plerixafor

    Measured: Day 28

  4. Graft-versus Host Disease (GVHD)

    To determine the incidence of acute and chronic graft versus host disease (GVHD) after transplantation of hematopoietic cells mobilized with MGTA-145 + plerixafor

    Measured: Day 100

  5. Treatment-related Mortality

    To determine the proportion of treatment-related mortality and disease relapse/progression after transplantation of hematopoietic cells mobilized with MGTA-145 + plerixafor

    Measured: Day 100

  6. Overall Survival

    To determine the probability of overall survival after transplantation of hematopoietic cells mobilized with MGTA-145 + plerixafor

    Measured: Day 100

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Feb 2021
  2. Study start16 Jun 2021
  3. Primary completion14 Sep 2021
  4. Study completion14 Mar 2022

Why it stopped: This study was voluntarily terminated due to a business decision not to proceed and not due to any safety issue

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04762875
Sponsor's protocol ID
145-ADS-202
Status last verified
Oct 2024
First submitted
12 Feb 2021
Last updated
6 Nov 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing MGTA-145 and Plerixafor in people with Related Donors Donating PBSC to a Family Member and Healthy Donors, run by Ensoma at 8 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 20 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 6 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 29 Aug 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

HSC Yield in Apheresis Product (time frame: Up to 2 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2024.

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