Study of Healthy Aging and Physical Function With Elamipretide

NCT ID: NCT07275424

Last Updated: 2025-12-10

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-11-26
• Study Completion Date: 2026-04-15

Brief Summary

This study will utilize a daily dose of elamipetide for 4 weeks and will screen a sufficient number of subjects for 30 subjects to enroll in the study. The planned duration of the study includes baseline measurement, followed by 4 weeks intervention period, a midpoint (2week ±3days) check-in phone interview, and post intervention visits that mirror the baseline visits. After the last injection, subjects will enter the 2-week follow-up period, concluded by the end-of-study contact.

Detailed Description

This study will be a Phase 2a, open-label, single-arm study enrolling older adults subjects with lower function. The primary objective of this study is to evaluate the safety and tolerability of elamipretide, given as daily subcutaneous injection over 4 weeks. Secondary endpoints will test whether the administration of elamipretide results in changes in blood biomarkers of inflammation and improved cognitive and mobility functional performance in an older adult population. This study will be conducted in strict compliance with the protocol, current Good Clinical Practice (GCP) and all Food and Drug Administration (FDA) guidelines.

Conditions

Aging, Healthy

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Safety and tolerability of daily subcutaneous injection of elamipretide

single arm ELAM intervention

Group Type: OTHER

Elamipretide will be supplied as a sterile 5.0 mL single-patient, multi-dose glass vial containing 3.75 mL of elamipretide solution (elamipretide [80 mg/mL], phosphate buffer, and benzyl alcohol)

Intervention Type: DRUG

Primary Study Objective To evaluate the safety and tolerability of daily subcutaneous injections of elamipetide for 4 weeks in adults aged 65-80

Secondary Objective To assess inflammatory biomarker changes with 4-week daily injection of elamipetide on healthy aging To assess the skeletal muscle health in older subjects with lower aerobic capacity (cardiovascular health) To assess cognitive function changes with 4-week SC daily injection of elamipetide

Interventions

Elamipretide will be supplied as a sterile 5.0 mL single-patient, multi-dose glass vial containing 3.75 mL of elamipretide solution (elamipretide [80 mg/mL], phosphate buffer, and benzyl alcohol)

Primary Study Objective To evaluate the safety and tolerability of daily subcutaneous injections of elamipetide for 4 weeks in adults aged 65-80

Secondary Objective To assess inflammatory biomarker changes with 4-week daily injection of elamipetide on healthy aging To assess the skeletal muscle health in older subjects with lower aerobic capacity (cardiovascular health) To assess cognitive function changes with 4-week SC daily injection of elamipetide

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Male or female aged ≥65 and ≤80 years

2. VO2peak ≤ 37.3ml/kg/min for men and ≤ 25.7ml/kg/min for women as evidence of lower mitochondrial function

3. Are ambulatory and able to perform activities of daily living without assistance

4. Have sufficient venous access for clinical blood draw

5. Willing and able to self-administer injections or have a willing caregiver who is able to administer injections.

6. Speak and read English

7. Have no established daily exercise routine and are not participating in any exercise training program or physical hobby (i.e. dance, martial arts, yoga) and agree to not start any such activities during the course of study participation

8. Willing to avoid the following medications during the course of the study:

Anti-seizure medications

• Coenzyme Q10, creatine, L-carnitine, and other supplements intended to increase muscle mass, energy or function
• Muscle relaxants
• Systemic steroid or immunosuppressive use
• Opioids (regular use of > 10 mg/day morphine equivalents) 9. No known allergies/adverse effects from Fexofenadine 10. Provide documentation of informed consent

Exclusion Criteria

1. Have significant disease(s) or condition(s) which, in the opinion of the investigator, may put the subject at risk because of their participation in the study or may influence either the results of the study or the subject's ability to participate in the study

2. Presence of severe renal disease (eGFR <30 mL/min) or hepatic disease (aspartate aminotransferase [AST] or alanine aminotransferase [ALT] >2x the upper limit of normal) as evidenced by laboratory results at Screening.

3. Have a history of rhabdomyolysis

4. Have been hospitalized within 3 months prior to screening for major atherosclerotic events (e.g., myocardial infarction, target-vessel revascularization, coronary bypass surgery or stroke) or other major medical condition (as deemed by the primary investigator)

5. Are currently enrolled in a clinical study involving an investigational product or non- approved use of a drug or device or concurrently enrolled in any other type of medical research judged to be scientifically or medically incompatible with this study

6. Have participated within the last 30 days of screening visit in a clinical study involving an investigational product.

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• Minimum Eligible Age: 65 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Stealth BioTherapeutics Inc.

INDUSTRY

Sponsor Role: collaborator

David Marcinek

OTHER

Sponsor Role: lead

Responsible Party

David Marcinek

Professor

Responsibility Role: SPONSOR_INVESTIGATOR

Principal Investigators

David Marcinek, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Washington

Locations

University of Washington

Seattle, Washington, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

Sophia Liu, PhD

Role: CONTACT

sophia21@uw.edu

206-543-0209

Facility Contacts

Sophia Liu Lab manager

Role: primary

sophia21@uw.edu

206-667-5000

Other Identifiers

STUDY00023162

Identifier Type: -

Identifier Source: org_study_id