The Natural History Study of Mitochondrial NeuroGastroIntestinal Encephalopathy (MNGIE)

NCT ID: NCT01694953

Last Updated: 2025-04-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-02-28

Study Completion Date

2026-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a multi-center natural history study of Mitochondrial NeurogastroIntestinal Encephalopathy (MNGIE). Patients will be followed over time to assess clinical symptoms. The investigators hope to learn more about the disease of MNGIE as well as develop useful measures of disease status for use in future clinical trials.

Additional clinical centers will be listed as they become available.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The investigators will examine a total of 20 patients at six month intervals for up to five years. The investigators will evaluate gastrointestinal function, lean body mass, neuropathy, neuropsychological capability, quality of life, nutrition, motor function and biochemical parameters.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Mitochondrial NeuroGastroIntestinal Encephalopathy (MNGIE)

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Patients with MNGIE

Patients of all races of any gender who are at least 5 years of age with a defect in thymidine phosphorylase may participate in this natural history study.

No interventions assigned to this group

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Thymidine Phosphorylase (TP) defect:

1. homozygous or
2. compound heterozygous mutations in the TYMP gene, and/or
3. TP enzyme activity of \<20% of normal.
2. Increased plasma Thd \> 3 micromole/L
3. Increased plasma dUrd \> 7.5 micromole/L
4. Age requirement of at least 5 years of age.

Exclusion Criteria

1. Participation in an interventional (study medication or other experimental intervention) study (within 1 month of participation in this study).
2. Unable to travel to site for research visits.
3. Unwillingness to sign informed consent form.
4. Substance abuser
Minimum Eligible Age

5 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

National Institute of Neurological Disorders and Stroke (NINDS)

NIH

Sponsor Role collaborator

Columbia University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Michio Hirano, MD

Role: PRINCIPAL_INVESTIGATOR

Columbia University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Columbia University

New York, New York, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Kris Engelstad, MS

Role: CONTACT

212-305-6834

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Kris Engelstad, MS

Role: primary

212-305-6834

References

Explore related publications, articles, or registry entries linked to this study.

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.

Reference Type BACKGROUND
PMID: 22215544 (View on PubMed)

Related Links

Access external resources that provide additional context or updates about the study.

https://www.rarediseasesnetwork.org/

Rare Disease Clinical Research Network, NIH

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

1U54NS078059

Identifier Type: NIH

Identifier Source: secondary_id

View Link

AAAI5453

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Natural History Study of Smith-Magenis Syndrome
NCT00013559 ACTIVE_NOT_RECRUITING