The NIH MINI Study: Metabolism, Infection, and Immunity in Inborn Errors of Metabolism

NCT ID: NCT01780168

Last Updated: 2025-12-24

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

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Recruitment Status

RECRUITING

Total Enrollment

400 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-12-31

Brief Summary

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The Metabolism, Infection and Immunity (MINI) Study is a longitudinal natural history study at the National Institutes of Health (NIH) that aims to define the relationship between infection, immunity and clinical decline in individuals with mitochondrial disease. Mitochondrial diseases are a group of disorders caused by problems with the cell s ability to produce energy. Infection in individuals with mitochondrial disease can lead to worsening clinical symptoms, particularly neurologic symptoms.

Goals:

The main goal of our study is to understand the relationship between infection and clinical decline in patients with mitochondrial disease. Mitochondrial diseases can affect many different parts of the body, including the immune system and its ability to respond to infection. Therefore, we perform a comprehensive evaluation of participants including a detailed immunologic assessment.

We are not testing any new medicine or procedure to treat or cure IEM or mitochondrial diseases. However, by understanding the relationship between infection and mitochondrial disease, we hope to develop treatments in the future. At the NIH, we are interested in research. Although we do provide advice and care for people enrolled in our study, we are not able to take over the long-term care of participants. To enroll in our study, you (your child) must already have a confirmed diagnosis of a mitochondrial disease. We are not able to provide a "first time" diagnosis or regular metabolic care.

What is involved?

Once you contact our team members, you will be asked to provide medical records to determine eligibility. Our team will review the records and notify you if you (your child is) eligible to join the study.

-Onsite participation: You (your child) will be invited to visit the National Institutes of Health in Bethesda, Maryland. This first visit will typically last 3-5 days. Depending on the level of participation, additional visits may be requested. Our team members will work with you and your child to coordinate the supports needed during your stay at NIH. Study participants may be seen in the clinic, day hospital or inpatient setting.

When you (your child) arrive at the NIH we will have an informed consent discussion to confirm willingness to participate, answer questions and review the risks and benefits of the study. You (your child) will meet with a physician who will ask about medical and family history and do a physical exam (like in any doctor's office). We will ask all study participants to allow us to collect urine, draw blood, swab your (your child s) nose, and perform a detailed assessment. We may suggest additional evaluations or specialty consults for some participants based on clinical manifestations, age and level of independence. We will explain these studies to you (your child). They may include items such as- imaging studies, DEXA or MRI scan, energy expenditure or metabolic testing, developmental neuropsychological logical testing, physiatry, ophthalmology, or other consults. In some cases, we may request a skin biopsy (if one has not been done). You will receive the results of your (your child's) clinical testing and notes from any clinical consultations.

-Remote participation: If you (your child) are unable to travel, you (your child) may be enrolled remotely for records review, questionnaires, and telethealth exams. Blood or other samples collection may be requested in coordination with local providers or lab testing companies

Detailed Description

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The biochemical perturbations in children with inborn errors of metabolism (IEM) may affect their immune response. As a result, this will not only increase risk for infection but also hamper their ability to develop protective immunity after vaccination. Characterizing perturbations in immunity and the ability of vaccines to provide protective immunity in IEM is critical. Immune deficiencies and the immunogenicity of vaccines have not been well characterized in IEM.

Viral infections play a significant role in precipitating life-threatening acute decompensations in various IEM. Seasonal variation of respiratory and gastrointestinal viruses places this vulnerable population at significant risk. The standard of care for these patients is routine childhood vaccination as well as vaccination for seasonal influenza viruses. However, nutritional deficiencies and their underlying IEM enzymopathies may affect the efficacy of vaccination.

In this protocol, we will clinically evaluate the immunologic states of patients with IEM. Routine inpatient and outpatient admissions will last 2-3 days and may involve blood drawing, radiological procedures, nutrition assessment and biometrics. Immune challenge may be performed using vaccinations for seasonal influenza and pneumococcus (PPV23). Follow-up appointments will be scheduled at the end of the study period.

The study objectives will be to describe the immune deficiencies seen, in this patient population, describe vaccine seroconversion in this patient population, and search for new genes in rare families that have evidence for an unknown class of IEM. The population will consist of patients previously evaluated at NIH, physician referrals, and families directed to the study from clinicaltrials.gov as well as the patient advocacy groups. All patients will be evaluated at the NIH Clinical Center.

Conditions

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Oxidative Phosphorylation Deficiencies Electron Transport Chain Disorders, Mitochondrial Mitochondrial Disorders Leigh Disease

Keywords

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Mitochondrial Disorders Leigh Disease Subacute Necrotizing Encephalopathy Disorders of Oxidative Phosphorylation (OXPHOS) Natural History

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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healthy volunteers

Healthy volunteers

No interventions assigned to this group

Inborn errors of metabolism/mitochondrial disease

patients with inborn errors of metabolism including those with mitochondrial disease

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

In order to be eligible to paraticipant in this study, an individual must meet all of the following criteria:

1. Stated willingness to comply with all study procedures and availability for the duration of the study.
2. Male or female, \>12 months of age.
3. Diagnosis of mitochondrial disease with documented molecular evidence of disease.
4. Healthy volunteers of any gender and ethnicity \>2 years of age may also be eligible to enroll in the protocol. Healthy volunteers may be from the local community, or family members of patients with MtD.
5. Agreement to adhere to Lifestyle considerations throughout study duration.
6. Ability of subject or Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document.

Exclusion Criteria

1. Lack of a local MtD provider (For participants with MtD only)
2. \<12 months of age
3. Pregnancy or lactation
4. Discretion and clinical judgement of the Principal Investigator
Minimum Eligible Age

2 Years

Maximum Eligible Age

115 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Human Genome Research Institute (NHGRI)

NIH

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Peter J McGuire, M.D.

Role: PRINCIPAL_INVESTIGATOR

National Human Genome Research Institute (NHGRI)

Locations

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National Institutes of Health Clinical Center

Bethesda, Maryland, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Shannon K Kruk, R.N.

Role: CONTACT

Phone: (301) 451-9145

Email: [email protected]

Peter J McGuire, M.D.

Role: CONTACT

Phone: (240) 515-5915

Email: [email protected]

Facility Contacts

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For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR)

Role: primary

References

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Kruk SK, Pacheco SE, Koenig MK, Bergerson JRE, Gordon-Lipkin E, McGuire PJ. Vulnerability of pediatric patients with mitochondrial disease to vaccine-preventable diseases. J Allergy Clin Immunol Pract. 2019 Sep-Oct;7(7):2415-2418.e3. doi: 10.1016/j.jaip.2019.03.046. Epub 2019 Apr 5. No abstract available.

Reference Type BACKGROUND
PMID: 30954647 (View on PubMed)

Related Links

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Other Identifiers

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13-HG-0053

Identifier Type: -

Identifier Source: secondary_id

130053

Identifier Type: -

Identifier Source: org_study_id