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Multiple MyelomaPhase 2NCT04552743

MGTA-145 + Plerixafor in the Mobilization of Hematopoietic Stem Cells for Autologous Transplantation in Multiple Myeloma

A Phase 2 study testing MGTA-145 and Plerixafor in people with Multiple Myeloma, run by Surbhi Sidana, MD at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study evaluates a new drug MGTA-145 in combination with plerixafor (Mozobil) to mobilize stem cells into the peripheral blood for collection by apheresis. The stem cells will be used for autologous stem cell transplant for treatment of multiple myeloma. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Multiple Myeloma
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
25 participants
Where
1 siteUnited States
Study dates
5 Oct 2020to 30 Jun 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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of multiple myeloma (MM) per the International Myeloma Working Group (IMWG) criteria
  • Eligible for autologous stem cell transplantation (ASCT) per institutional guidelines
  • Within 1 year of start of therapy for multiple myeloma
  • Cardiac and pulmonary status sufficient to undergo apheresis and transplantation per institutional transplant guidelines
  • Calculated creatinine clearance > 30 mL/min, according to the Modification of Diet in Renal Disease (MDRD) formula.
  • Absolute neutrophil count (ANC) > 1500 x 10e6/L
Show all 9Show fewer
  • Platelet count > 100,000 x 10e6/L
  • Ability to understand and the willingness to sign a written informed consent document.
  • Agreement to use an approved form of contraception for male patients or female patients of childbearing potential.

Who cannot join

  • History of prior stem cell transplant for multiple myeloma or other indications
  • Planned tandem stem cell transplant
  • Prior history of failure to collect HSCs.
  • Total bilirubin > 1.5x upper limit of normal (ULN) in the absence of a documented history of Gilbert's syndrome
  • Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) > 3x ULN
  • Known allergy to MGTA-145 or plerixafor.
  • Lifetime exposure to lenalidomide or another immunomodulatory drug greater than 6 cumulative months of treatment, ie, > 6 cycles of 28 days or > 8cycles of 21 days
  • Pregnant or lactating

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stanford University

    Stanford, California, 94304

Other trials in United States

About this study

Official title: Phase II Study of MGTA-145 in Combination With Plerixafor in the Mobilization of Hematopoietic Stem Cells for Autologous Transplantation in Patients With Multiple Myeloma

This study evaluates a new drug MGTA-145 in combination with plerixafor (Mozobil) to mobilize stem cells into the peripheral blood for collection by apheresis. The stem cells will be used for autologous stem cell transplant for treatment of multiple myeloma.

Read the detailed description

PRIMARY OBJECTIVE

  1. To assess the efficacy of MGTA-145 in combination with plerixafor in mobilizing adequate number of hematopoietic stem cells (> 2 x 10e6 CD34+ cells/kg) in patients with multiple myeloma (MM) in preparation for autologous stem cell transplantation (ASCT).

SECONDARY OBJECTIVES

  1. To assess the efficacy of MGTA-145 and plerixafor in mobilizing different Hematopoietic stem cells (HSCs) target goals in patients with MM in preparation for ASCT.
  2. To assess the safety and tolerability of MGTA-145 and plerixafor for mobilizing HSCs in patients with MM.
  3. To assess the engraftment rate and time to engraftment following ASCT after HSC mobilization with MGTA-145 and plerixafor in patients with MM undergoing upfront ASCT.
  4. To assess rate of ongoing engraftment at Day 30 and 100 after stem cell infusion in patients with MM who are mobilized with MGTA-145 and plerixafor undergoing upfront ASCT.
  5. To assess transplant and disease-related outcomes after mobilization of HSCs with MGTA-145 and plerixafor in patients with MM undergoing upfront ASCT.
Being tested
MGTA-145, Plerixafor
Medical subject headings
Multiple Myeloma

What participants receive

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

  • MGTA-145Drug

    Also called GRO beta

    A chemokine receptor type 2 (CXCR2) agonist protein, administered via intravenous (IV) infusion over 3 to 10 minutes.

  • PlerixaforDrug

    Also called Mozobil, AMD 3100, LM-3100

    An azamacrocycle CXCR4 chemokine receptor antagonist, administered at 0.24 mg/kg subcutaneously, reduced to 0.16 mg/kg in patients with renal dysfunction (per package insert).

Study groups in NCT04552743
Study groupRoleWhat they receive
MGTA-145 and Plerixafor HSC MobilizationExperimentalPatients after screening will undergo baseline evaluation during the premobilization phase up to 30 days before mobilization. Patients will undergo sequential administration of plerixafor 0.24 mg/kg subcutaneously followed 2 hours later by MGTA-145 at 0.03 mg/kg intravenously (3 to10 minute infusion). This will be followed by apheresis. A second day of mobilization and apheresis will be pursued in patients who have not collected 6.0 x 106 CD34+ cells/kg in one session.
Receives: Drug: MGTA-145; Drug: Plerixafor

What is being measured

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

  1. Number of Participants For Whom 2.0 x 10e6 CD34+ HSC Cells/kg Could be Collected in 1 or 2 Apheresis Harvests

    The study Primary Objective is to assess the efficacy of hematopoietic stem cells (HSC) mobilization with MGTA-145 in combination with plerixafor in patients with multiple myeloma (MM) in preparation for autologous stem cell transplantation (ASCT). The primary outcome was assessed as the number of participants for whom 2.0 x 10e6 CD34+ HSC cells/kg could be collected in 1 or 2 apheresis harvests, after mobilization with MGTA-145 and Plerixafor. The outcome is reported as the number of participants who achieved this level of HSC cells, a number without dispersion.

    Measured: 2 days

Secondary outcomes (10)
  1. Other Measures of Hematopoietic Stem Cell (HSC) Yield in the Apheresis Product

    The study Primary Objective is to assess the efficacy of hematopoietic stem cells (HSC) mobilization with MGTA-145 in combination with plerixafor in patients with multiple myeloma (MM) in preparation for autologous stem cell transplantation (ASCT). Other secondary outcomes were assessed as the number of participants for whom 2.0 or 4.0 x 10e6 CD34+ HSC cells/kg could be collected in the Day 1 apheresis harvest only, and for whom the total yield ≥ 4.0 or ≥ 6.0 x 106 CD34+ cells/kg. The outcome is reported as the number of participants who achieved these levels of HSC cells, a number without dispersion.

    Measured: 2 days

  2. Time To Neutrophil Engraftment

    Neutrophil engraftment after hematopoietic stem cells (HSC) transplant (infusion) is an important measure of the medical benefit of the mobilization and hematopoietic stem cells (HSC) infusion procedure. Time to neutrophil engraftment is defined as the number of days from the day of stem cell infusion to the 1st day of 3 consecutive days that absolute neutrophil count (ANC) is ≥ 0.5 x 10e9/L. Only the participants that proceeded to the HSC infusion are included in this outcome, with the outcome is expressed as the median number of days with full range.

    Measured: 15 days

  3. Maintenance of Neutrophil Engraftment [Absolute Neutrophil Count (ANC) ≥ 0.5 x 10e9/L]

    Maintenance of successful engraftment after initial engraftment is an important assessment of the value of the mobilization and hematopoietic stem cells (HSC) infusion procedure. For participants with successful neutrophil engraftment [absolute neutrophil count (ANC) ≥ 0.5 x 10e9/L], the outcome is reported as the number of participants that had maintained successful graft status [absolute neutrophil count (ANC) ≥ 0.5 x 10e9/L] at 30 days and 100 days after the infusion. The outcome is a number without dispersion.

    Measured: 100 days

  4. Time To Platelet Engraftment ≥ 20 x 10e9/L

    Platelet engraftment after hematopoietic stem cells (HSC) transplant (infusion) is an important measure of the medical benefit of the mobilization and hematopoietic stem cells (HSC) infusion procedure. Time to platelet engraftment ≥ 20 x 10e9/L is defined as the 1st day of 2 consecutive days that platelet count is ≥ 20 x 10e9/L, without transfusion in the prior 7 days. Only the participants that proceeded to the HSC infusion are included in this outcome, with the outcome is expressed as the median number of days with full range.

    Measured: 33 days

  5. Time To Platelet Engraftment ≥ 50 x 10e9/L

    Platelet engraftment after hematopoietic stem cells (HSC) transplant (infusion) is an important measure of the medical benefit of the mobilization and hematopoietic stem cells (HSC) infusion procedure. Time to platelet engraftment ≥ 50 x 10e9/L s defined as the 1st day that platelet count is ≥ 50 x 10e9/L, without transfusion in the prior 48 hours. Only the participants that proceeded to the HSC infusion are included in this outcome, with the outcome is expressed as the median number of days, with full range.

    Measured: 44 days

  6. Infusion-related Toxicities

    Infusion-related toxicities are adverse events considered at least possibly-related to the study treatments MGTA-145, assessed from Baseline to 7 days after mobilization. The outcome is reported as a listing of the preferred terms for the "at least possibly-related" adverse events, with outcome being the number of adverse events of that preferred term. The outcome is a listing of numbers without dispersion.

    Measured: 7 days after mobilization procedure

  7. Progression-free Survival (PFS)

    Progression-free survival (PFS) is an important assessment of the value of the mobilization and hematopoietic stem cells (HSC) infusion procedure. For participants that received the HSC infusion, the outcome is reported as the number of participants who remained alive and were without tumor progression, at 100 days after the infusion. The outcome is a number without dispersion.

    Measured: 100 days after infusion procedure

  8. Transplant-related Mortality

    Transplant-related mortality is an important assessment of the value of the mobilization and hematopoietic stem cells (HSC) infusion procedure. For participants that received the HSC infusion, the outcome is reported as the number of participants who had expired for any reason considered at least possibly related to the transplant / infusion procedure, within 100 days of the infusion. The outcome is a number without dispersion.

    Measured: 100 days after infusion procedure

  9. Non-relapse-related Mortality

    For participants that received the HSC infusion, the outcome is reported as the number of participants who had expired for any reason except disease relapse/progression, within 100 days of the infusion. The outcome is a number without dispersion.

    Measured: 100 days after infusion procedure

  10. Overall Survival (OS)

    Only patients proceeding with upfront transplant will be assessed. Overall survival is defined as duration from start of the ASCT to death (regardless of cause of death). This will be assessed from start of transplant and OS rates will be reported at day100 following transplant in patients undergoing upfront transplant.

    Overall survival (OS) is an important assessment of the value of the mobilization and hematopoietic stem cells (HSC) infusion procedure. For participants that received the HSC infusion, the outcome is reported as the number of participants who remained alive at 100 days after the infusion. The outcome is a number without dispersion.

    Measured: 100 days after infusion procedure

Timeline

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

  1. First posted17 Sep 2020
  2. Study start5 Oct 2020
  3. Primary completion22 Jul 2021
  4. Study completion30 Jun 2022

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
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04552743
Sponsor's protocol ID
IRB-57056
Other IDs
BMT362
Status last verified
Aug 2022
First submitted
11 Sep 2020
Last updated
10 Sep 2022
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Sidana S, Bankova AK, Hosoya H, Kumar SK, Holmes TH, Tamaresis J, Le A, Muffly LS, Maysel-Auslender S, Johnston L, Arai S, Lowsky R, Meyer E, Rezvani A, Weng WK, Frank MJ, Shiraz P, Maecker HT, Lu Y, Miklos DB, Shizuru JA. Phase II study of novel CXCR2 agonist and Plerixafor for rapid stem cell mobilization in patients with multiple myeloma. Blood Cancer J. 2024 Oct 9;14(1):173. doi: 10.1038/s41408-024-01152-1.

    PubMed 39384609

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing MGTA-145 and Plerixafor in people with Multiple Myeloma, run by Surbhi Sidana, MD at 1 site 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 9 inclusion and 8 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: finished, as of the sponsor's last update on 10 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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 10 Sep 2022). 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?

Number of Participants For Whom 2.0 x 10e6 CD34+ HSC Cells/kg Could be Collected in 1 or 2 Apheresis Harvests (time frame: 2 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04552743, which also lists 1 linked publication.

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 10 Sep 2022.

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