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Mitochondrial Neurogastrointestinal Encephalomyopathy (MNGIE)Phase 1MASSNCT02427178

MNGIE Allogeneic Hematopoietic Stem Cell Transplant Safety Study

A Phase 1 study testing Hematopoietic Allogeneic Stem Cells in people with Mitochondrial Neurogastrointestinal Encephalomyopathy (MNGIE), run by Michio Hirano, MD.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to find out if a stem cell transplant is safe for patients with a very rare disease. The stem cell transplant is called AHSCT (for "allogeneic hematopoetic stem cell transplantation"). The rare disease is called MNGIE (for "Mitochondrial NeuroGastroIntestinal Encephalomyopathy"). Read more about this study

Who is it for?
Ages 5 to 55 years
What is being tested?
Hematopoietic Allogeneic Stem Cells
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Mar 2015to Jun 2023
Phase
Phase 1
Are there results?
None posted in the registry

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 5 to 55 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Homozygous or compound heterozygous mutations in the TYMP gene
  • Plasma thymidine level >3micromole/L
  • Plasma deoxyuridine >7.5 micromole/L
  • 5 to 55 years of age
  • Appropriate stem cell donor (HLA 10/10 matched)
  • Karnofsky performance of at least 55

Who cannot join

  • Severe cognitive impairment
  • Severe psychiatric illness
  • Moderate to severe lung disease
  • Prior episode of peritonitis due to perforated diverticula
  • Prior episode of intestinal pseudo-obstruction
  • Moderate to severe hepatopathy
Show all 13Show fewer
  • Moderate to severe diabetes Mellitus
  • Moderate to severe cardiomyopathy
  • Moderate to severe nephropathy
  • Pregnancy or planning to become pregnant during study
  • Hypersensitivity to E.coli derived products
  • HIV disease
  • Positive to anti-donor HLA DP

About this study

Official title: MNGIE (Mitochondrial Neurogastrointestinal Encephalomyopathy) AHSCT (Allogeneic Hematopoietic Stem Cell Transplant) Safety Study

The purpose of this study is to find out if a stem cell transplant is safe for patients with a very rare disease. The stem cell transplant is called AHSCT (for "allogeneic hematopoetic stem cell transplantation"). The rare disease is called MNGIE (for "Mitochondrial NeuroGastroIntestinal Encephalomyopathy"). Patients with MNGIE will be transplanted with stem cells from an individual who is human leukocyte antigen (HLA) 10/10 matched. The purpose of the transplant is the production of thymidine phosphorylase.

Read the detailed description

Patients who have been identified as having MNGIE by genetic testing and/or reduced thymidine phosphorylase levels will be considered for this study. The study team physician will evaluate the condition of the patient and determine if they are eligible. An HLA matched donor is necessary for transplantation. If a suitable donor is found the transplant process can proceed. The patient receives immunosuppressive therapy ( 1 week in the hospital) with subsequent IV transfer of stem cells from the donor. The patient remains in the hospital for approximately 1 month to monitor the transplant. The patient is required to attend research visits at days 0, 100, 6m, 18m and 24 m.

Being tested
Hematopoietic Allogeneic Stem Cells
Keywords
Allogeneic Hematopoietic Stem Cell Transplantation, MNGIE, Stem Cell transplant

What participants receive

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

  • Hematopoietic Allogeneic Stem CellsBiological

    HLA 10/10 matched allogeneic bone marrow cells will be infused into recipient (patient).

Study groups in NCT02427178
Study groupRoleWhat they receive
Open labelExperimentalHematopoietic allogeneic stem cells will be transplanted: HLA testing will be performed on potential stem cell donors. HLA 10/10 matched donors are eligible, however there are additional criteria that will be applied to determine an acceptable donor. Patients will receive 2 X10 6 CD34 cells/kg weight.
Receives: Biological: Hematopoietic Allogeneic Stem Cells

What is being measured

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

  1. neutrophil count (cells/L)

    engraftment success

    Measured: 42 days

Secondary outcomes (4)
  1. number of patient survival days

    is the patient al

    Measured: 100 days

  2. chimerism percentage

    percent of donor cell chimerism at 100 days

    Measured: 100 days

  3. micromole/l dUrd

    level of deoxyuridine

    Measured: 100 days

  4. micromole Thd

    level of thymidine

    Measured: 100 days

Timeline

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

  1. First posted27 Apr 2015 (estimated)
  2. Study startMar 2015 (estimated)
  3. Primary completionJun 2022 (estimated)
  4. Study completionJun 2023 (estimated)

Why it stopped: Poor enrollment

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02427178
Sponsor's protocol ID
AAAI1718
Other IDs
U54NS078059
Acronym
MASS
Status last verified
Jul 2022
First submitted
10 Feb 2015
Last updated
1 Aug 2022
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: When applicable, we will submit a manuscript describing the results

Publications

  • Halter J, Schupbach W, Casali C, Elhasid R, Fay K, Hammans S, Illa I, Kappeler L, Krahenbuhl S, Lehmann T, Mandel H, Marti R, Mattle H, Orchard K, Savage D, Sue CM, Valcarcel D, Gratwohl A, Hirano M. Allogeneic hematopoietic SCT as treatment option for patients with mitochondrial neurogastrointestinal encephalomyopathy (MNGIE): a consensus conference proposal for a standardized approach. Bone Marrow Transplant. 2011 Mar;46(3):330-337. doi: 10.1038/bmt.2010.100. Epub 2010 May 3.

    PubMed 20436523
  • Marti R, Lopez LC, Hirano M. Assessment of thymidine phosphorylase function: measurement of plasma thymidine (and deoxyuridine) and thymidine phosphorylase activity. Methods Mol Biol. 2012;837:121-33. doi: 10.1007/978-1-61779-504-6_8.

    PubMed 22215544
  • Hirano M, Nishino I, Nishigaki Y, Marti R. Thymidine phosphorylase gene mutations cause mitochondrial neurogastrointestinal encephalomyopathy (MNGIE). Intern Med. 2006;45(19):1103. doi: 10.2169/internalmedicine.45.6064. Epub 2006 Nov 1. No abstract available.

    PubMed 17077575
  • Valentino ML, Marti R, Tadesse S, Lopez LC, Manes JL, Lyzak J, Hahn A, Carelli V, Hirano M. Thymidine and deoxyuridine accumulate in tissues of patients with mitochondrial neurogastrointestinal encephalomyopathy (MNGIE). FEBS Lett. 2007 Jul 24;581(18):3410-4. doi: 10.1016/j.febslet.2007.06.042. Epub 2007 Jun 27.

    PubMed 17612528

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Hematopoietic Allogeneic Stem Cells in people with Mitochondrial Neurogastrointestinal Encephalomyopathy (MNGIE), run by Michio Hirano, MD.

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 6 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: withdrawn, as of the sponsor's last update on 1 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

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?

neutrophil count (cells/L) (time frame: 42 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 NCT02427178, which also lists 4 linked publications.

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 1 Aug 2022.

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