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Inherited Metabolic Disorders (IMD)Phase 2NCT03406962

MGTA-456 in Patients With Inherited Metabolic Disorders Undergoing Hematopoietic Stem Cell Transplantation (HSCT)

A Phase 2 study testing MGTA-456 in people with Inherited Metabolic Disorders (IMD), run by Magenta Therapeutics, Inc. at 2 sites 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 is designed to assess the safety and efficacy of using MGTA-456 in patients with Inherited Metabolic Disorders (IMD) undergoing stem cell transplantation. Read more about this study

Who is it for?
Ages 0 to 17 years
Conditions the study is for
Inherited Metabolic Disorders (IMD)
What is being tested?
MGTA-456
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
2 sitesUnited States
Study dates
9 Feb 2018to 15 Jan 2021
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 0 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Age < 2.5 years with Hurler syndrome, age 2-17 years with cerebral adrenoleukodystrophy (cALD), age < 16 years with metachromatic leukodystrophy (MLD) and age ≤ 10 years with globoid cell leukodystrophy (GLD) (also referred to as Krabbe)
  • Cord blood grafts require genetic testing and/or demonstration of enzyme activity for patients with Hurler syndrome, MLD or GLD and are tested for very long chain fatty acids (VLCFA) to confirm there is no evidence of VLCFA consistent with ALD
  • Adequate organ function
  • Availability of eligible donor material

Who cannot join

  • Availability of a matched-related donor who is not a carrier of the same genetic defect
  • Active infection at screening
  • Prior myeloablative conditioning
  • History of human immunodeficiency virus (HIV) infection

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, 45229

  • University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: A Phase 2, Single-arm, Open-label Study to Evaluate the Safety and Efficacy of MGTA-456 in Patients With Inherited Metabolic Disorders (IMD) Undergoing Hematopoietic Stem Cell Transplantation (HSCT)

This study is designed to assess the safety and efficacy of using MGTA-456 in patients with Inherited Metabolic Disorders (IMD) undergoing stem cell transplantation.

Read the detailed description

This phase 2 study is designed to evaluate the safety and efficacy of MGTA-456 in patients with IMD after receiving myeloablative conditioning and HSCT. MGTA-456 is an expanded CD34+ cell therapy product candidate given to induce rapid and sustained hematopoietic engraftment. In patients with selected IMDs, transplant is expected to replace defective or missing protein and preserve neurodevelopment. Since MGTA-456 offers increased numbers of HSCs over standard umbilical cord blood, it is expected to reduce the risks of prolonged neutropenia and thrombocytopenia and graft failure, and potentially transplant-related mortality (TRM). Patients with Hurler syndrome (also referred to as mucopolysaccharidosis-1H (MPS-1H)), cerebral adrenoleukodystrophy (cALD), metachromatic leukodystrophy (MLD) or globoid cell leukodystrophy (GLD) (also referred to as Krabbe disease) are eligible for this study.

Being tested
MGTA-456
Keywords
inherited metabolic disorders, cerebral adrenoleukodystrophy, Hurler syndrome, globoid cell leukodystrophy, Krabbe disease, metachromatic leukodystrophy, hematopoietic stem cells, hematopoietic stem cell transplant, umbilical cord blood, umbilical cord blood transplant, MGTA-456, myeloablative conditioning regimen, bone marrow transplant, mucopolysaccharidosis-1H
Medical subject headings
Mucopolysaccharidosis I, Leukodystrophy, Globoid Cell, Leukodystrophy, Metachromatic

What participants receive

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

  • MGTA-456Drug

    Also called HSC835

    Hematopoietic stem cell transplantation will be done with the cell therapy product MGTA-456.

Study groups in NCT03406962
Study groupRoleWhat they receive
MGTA-456ExperimentalMGTA-456 is an expanded CD34+ cell therapy investigational product used in replacement of single umbilical cord blood transplantation.
Receives: Drug: MGTA-456

What is being measured

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

  1. Number of Participants With Engraftment

    Engraftment is defined as achieving an absolute neutrophil count (ANC) ≥0.5 × 10⁹/L for 3 consecutive days.

    Measured: 42 days

Secondary outcomes (1)
  1. Number of Participants With Infusion Toxicities

    Incidence of treatment-emergent adverse events (AEs) within 48 hours after MGTA-456 administration

    Measured: 48 hours

Timeline

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

  1. First posted23 Jan 2018
  2. Study start9 Feb 2018
  3. Primary completion10 Feb 2020
  4. Study completion15 Jan 2021

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
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03406962
Sponsor's protocol ID
IMD-001
Status last verified
Jun 2020
First submitted
16 Jan 2018
Last updated
3 Nov 2021
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-456 in people with Inherited Metabolic Disorders (IMD), run by Magenta Therapeutics, Inc. at 2 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 4 inclusion and 4 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 3 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 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 28 Oct 2021). 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 With Engraftment (time frame: 42 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 3 Nov 2021.

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