Mitochondria in HIV and Aging (MITO+) ((MITO+))

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03489421
Recruitment Status : Recruiting
First Posted : April 5, 2018
Last Update Posted : October 16, 2018
Information provided by (Responsible Party):
University of Colorado, Denver

Brief Summary:
Older adults with human immunodeficiency virus (HIV) and a long history of antiretroviral therapy have more mitochondrial dysfunction- the cells that help them make energy. This dysfunction in mitochondria may lead to symptoms of muscle fatigue, physical function impairment, and impaired exercise tolerance compared to HIV-uninfected controls of a similar age and body mass index (BMI). Furthermore, the investigators hypothesize that the older antiretroviral therapy (ART) of tenofovir disoproxil fumarate (TDF) is associated with greater impairment in mitochondrial function than the newer agent, tenofovir alafenamide (TAF).

Condition or disease
Human Immunodeficiency Virus (HIV) Mitochondrial Diseases

Study Type : Observational
Estimated Enrollment : 24 participants
Observational Model: Case-Control
Time Perspective: Other
Official Title: Mitochondria in HIV and Aging (MITO+)
Estimated Study Start Date : December 15, 2018
Estimated Primary Completion Date : April 15, 2021
Estimated Study Completion Date : April 15, 2022

HIV Infected
Un-infected controls
Controls without HIV from a historical pre-approved-IRB-protocol database

Primary Outcome Measures :
  1. ADP/ATP measurement (mitochondrial function) [ Time Frame: At Baseline ]
    ADP/ATP ratio between HIV-infected and uninfected subjects

Secondary Outcome Measures :
  1. Protein citrate synthase [ Time Frame: At Baseline ]
    Total protein citrate synthase between HIV-infected and seronegative subjects

  2. Respiratory control ratio (RCR) [ Time Frame: At Baseline ]
    Respiratory control ratio (RCR) between HIV-infected and uninfected subjects

  3. Inflammatory markers [ Time Frame: At Baseline ]
    Relationship between markers of inflammation (final panel to be determined, but most likely sTNFR1 and 2 in addition to multiplex panel of IL-6, IL-10, CRP, IFN-G) and their effect on mitochondrial function

  4. Muscle function [ Time Frame: At Baseline ]
    Relationship between measures of muscle function (strength, physical function) and mitochondrial function

  5. TDF to TAF change [ Time Frame: At Baseline ]
    A separate group of participants changing from TDF-based ART to TAF-based ART will also have mitochondrial function measures before and after change. The inclusion criteria are similar except the age range is 18-70.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
HIV-infected participants will be those living with HIV, between the ages of 50-75 years, recruited from the University of Colorado Infectious Diseases Group Practice HIV-uninfected participants were previous enrolled and completed an IRB approved protocol (historical database).
  • Inclusion criteria:

    • Between the ages of 50-75 years at study entry (a subset of participants changing from TDF-based ART to TAF-based ART will also have mitochondrial function measured and the age range for this subset is 18-70)
    • Known HIV infection or presumed HIV uninfected (will be confirmed at screening)
    • For HIV+ participants: must be on an ART regimen (change in regimen permitted for preference/tolerability but not for virologic failure) for a minimum of 5 years, with a viral load < 200 during the prior 2 years. The investigators will initially target 10 years of therapy, but will expand to 5 years if needed for enrollment.
    • Although any ART regimen will be allowed if effective (as above), the investigators will first target participants that have a history of > 5 years of TDF exposure and are currently on TAF or TDF, but no prior exposure to AZT or stavudine.
    • CD4 T-cell count greater than 200 cells/mm3
    • All participants must be able to perform activities of daily living without assistance, and ambulate independently.
    • Sedentary as defined above
    • Post-menopausal as defined by cessation of menstrual periods for at least 12 months without any other obvious pathological or physiological cause OR removal of ovaries at least 12 months prior to enrollment.
    • Body mass index between 25-38 kg/m2
  • Exclusion criteria:

    • Participation in another clinical trial where the therapy is unknown or blinded.
    • Diabetes, as defined by use of diabetes medications, hemoglobin A1c 6.5 or greater, fasting plasma glucose 126 mg/dL or greater, or random plasma glucose 200 mg/dL or greater.
    • Persons on statin therapy (as possible; this criteria may be removed for recruitment difficulties).
    • Fasting triglycerides > 400
    • Untreated or incompletely treated thyroid disease will be excluded; stable therapy for > 6 months will be allowed.
    • Persons on growth hormone or growth hormone axis therapy (i.e., tesamorelin) will be excluded.
    • The investigators will initially target men, women, or transgendered individuals without replacement hormone use. If the investigators are unable to recruit the target number of participants, stable (>3 months) estrogen or testosterone within physiologic replacement dose range will be permitted.
    • Corticosteroid use, including intra-articular, will be excluded (within 3 months for oral; within 6 months for intra-articular); inhaled or intranasal will be permitted.
    • Immunosuppressive medications within 6 months, including methotrexate, infliximab, azathioprine, etc.
    • Women that are pregnant, breast-feeding, or intend to become pregnant.
    • Known hepatitis B or C with detectable viremia within in the past 6 months.
    • Hepatitis C with undetectable viral load for at least 6 months will be allowed.
    • Known mitochondrial disorder
    • Severe liver disease other than hepatitis B or C due to interference with systemic cytokine production
    • Uncontrolled hypertension defined as resting systolic blood pressure (BP) >180 mmHg or diastolic BP >100 mmHg
    • Indicators of unstable ischemic heart disease
    • New York Heart Association Class III or IV congestive heart failure, clinically significant aortic stenosis, uncontrolled angina, or uncontrolled arrhythmia
    • Pulmonary disease requiring the use of supplemental oxygen
    • Active malignancy (excluding non-melanoma skin cancers) within 24 weeks prior to enrollment
    • Surgery/trauma/injury/fracture within 12 weeks prior to enrollment that may limit ability to perform physical function testing.
    • Acute infection (skin infection, sinus infection, uncomplicated upper respiratory infection, dental infection, etc) within 2 weeks of study entry will be excluded until the infection has resolved for at least 2 weeks
    • Chronic, deeper infections (complicated pneumonia, bone infection, liver abscess, deep wound infection, etc) must have completed treatment and show no evidence of ongoing infection for at least 12 weeks
    • History of stroke with residual deficits
    • Any medical condition that does not allow for a non-contrasted MRI study (ie, pacemaker, shrapnel, other devices or hardware)
    • AIDS-defining opportunistic infection75 within the 24 weeks prior to enrollment
    • Severe anemia, defined as a hemoglobin of 9 mg/dL or less
    • Participants on anticoagulants (clopidogrel, Coumadin, etc). Patients on short-acting anticoagulant therapy requiring dose cessation for only 48-72 hours can be considered for muscle biopsy with approval by their treating physician.
    • Aspirin and Non-steroidal anti-inflammatory agents are not exclusions but should be stopped 1 week prior to biopsy.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03489421

Contact: Kristine Erlandson, MD, MS 303-724-4941

United States, Colorado
University of Colorado - Anschutz Medical Campus Recruiting
Aurora, Colorado, United States, 80045
Contact: Kristine Erlandson, Md, MS    303-724-4941   
Principal Investigator: Kristine Erlandson, MD, MS         
Sponsors and Collaborators
University of Colorado, Denver

Responsible Party: University of Colorado, Denver Identifier: NCT03489421     History of Changes
Other Study ID Numbers: 17-2161
First Posted: April 5, 2018    Key Record Dates
Last Update Posted: October 16, 2018
Last Verified: October 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description: IPD is kept private per UC Denver restrictions

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:
Mitochondrial Diseases
Immunologic Deficiency Syndromes
Acquired Immunodeficiency Syndrome
HIV Infections
Immune System Diseases
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Slow Virus Diseases
Metabolic Diseases