RECOVER-ENERGIZE Platform Protocol_Appendix A (Exercise Intolerance)

May 5, 2026 updated by: Duke University

RECOVER-ENERGIZE: A Platform Protocol for Evaluation of Interventions for Exercise Intolerance in Post-Acute Sequelae of SARS-CoV-2 Infection (PASC)

This is a platform protocol designed to be flexible so that it is suitable for a range of interventions and settings within diverse health care systems and community settings with incorporation into clinical COVID-19 management programs and treatment plans if results achieve key study outcomes.

This protocol is a prospective, multi-center, multi-arm, randomized, controlled platform trial evaluating interventions to address and improve exercise intolerance and post-exertional malaise (PEM) as manifestations of Post-Acute Sequelae of SARS-CoV-2 Infection (PASC).

The focus of this protocol is to assess interventions that can improve exercise capacity, daily activities tolerance, and quality of life in patients with PASC.

Study Overview

Detailed Description

Study interventions will be added to the platform protocol as appendices. Each appendix will leverage all elements of the platform protocol, with additional elements described in the individual appendix. Study intervention appendices may be added or removed according to adaptive design and/or emerging evidence.

The platform protocol enrolls participants who meet study eligibility criteria. After completing initial screening assessments, eligible participants are assigned to one of the study intervention appendices that are actively enrolling. Participants must meet certain criteria within a specific appendix in order to be included in that appendix. Once assigned to an appendix, eligible participants are randomized to either the study intervention group or a control group.

Study Type

Interventional

Enrollment (Actual)

360

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • North Carolina
      • Durham, North Carolina, United States, 27710
        • All sites listed under NCT06404047

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

• See NCT06404047 for RECOVER-ENERGIZE: Platform Protocol level inclusion and exclusion criteria which applies to this appendix

Additional Appendix A (Cardiopulmonary Rehabilitation (Exercise Intolerance)) Level Exclusion Criteria:

  1. Known pre-existing postural orthostatic tachycardia syndrome, not related to SARS-CoV-2 infection
  2. Known uncontrolled hypertension (blood pressure [BP] ≥ 160/100 mmHg at rest)
  3. Any of the following within 4 weeks of enrollment - acute myocardial infarction, unstable angina, uncontrolled arrhythmias causing symptoms or hemodynamic compromise, acute myocarditis or pericarditis, uncontrolled acutely decompensated heart failure (acute pulmonary edema), acute pulmonary embolism, suspected dissecting aneurysm, severe hypoxemia at rest, thromboembolic event(s), any acute or chronic disorder that may affect exercise capacity or be aggravated by exercise (e.g., infection, exercise induced syncope, thyrotoxicosis, unable to cooperate)
  4. Score of 2 or greater for both frequency and severity for any of the first 5 questions on the Screening mDSQ-PEM AND answer of 'YES' to either item 7 or 8 on the Screening mDSQ-PEM, and response of > 14 hours in item 9 OR Score of 3 or greater on any severity question (regardless of frequency) AND answer of 'YES' to either item 7 or 8 on the Screening mDSQ-PEM, and response of > 14 hours in item 9 OR Any score of 3 or greater on any of the severity questions on the mDSQ-PEM 48-72 hours following the Screening ISWT test
  5. A selection of ≥ 8 on question 1 or ≥ 9 on question 3 of the OH Activity Scale from the mOHQ
  6. Engaged in purposeful moderate or greater intensity exercise with the intent to improve one's health 2 or more times per week over the 30 days prior to informed consent
  7. Inability to walk

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cardiopulmonary Rehabilitation (Exercise Intolerance)
Participants assigned to Cardiopulmonary Rehabilitation will undergo a 12-week personalized cardiopulmonary rehabilitation intervention with a follow-up period of 3 months (total study duration of 6 months).

Participants in this group will complete 2-3 cardiopulmonary rehabilitation sessions per week, for 12 weeks, as tolerated. Rehabilitation sessions are provided by respiratory therapists, exercise physiologists, physical therapists, nurses, or others who have experience and training in either pulmonary or cardiac rehabilitation.

Rehabilitation sessions (adjusted based on the participant's baseline assessment, symptoms, and progress) last about 1 hour and include education, aerobic exercise, strength, and flexibility training.

Active Comparator: Education
Participants in this group will receive two general education sessions at the start of the intervention with weekly phone/virtual follow-ups from site study staff.
Participants in this group will receive two general education sessions at the start of the intervention with weekly phone/virtual follow-ups from site study staff.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Endurance Shuttle Walk Test (ESWT)
Time Frame: Baseline, week 12 (End of Intervention (EOI))
The ESWT consists of timed walking on a 10m course. The result is expressed as total walking time after an initial 2-minute warm-up. The ESWT is an outcome measure of exercise capacity.
Baseline, week 12 (End of Intervention (EOI))

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in physical function, as measured by the PROMIS SF-Physical Function (PROMIS-PF)
Time Frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
The PROMIS Short Form v2.0 - Physical Function 8b (PROMIS-PF) consists of 8 items. The PROMIS Physical Function instruments measure self-reported capability rather than actual performance of physical activities.
Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Change in physical function, as measured by actigraphy
Time Frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Change in symptom frequency, as measured by the Modified DePaul Symptom Questionnaire - Post-Exertional Malaise (mDSQ-PEM)
Time Frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Symptom frequency is rated on a 5-point Likert scale: 0 = none of the time, 1 = a little of the time, 2 = about half the time, 3 = most of the time, and 4 = all of the time.
Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Change in symptom severity, as measured by the Modified DePaul Symptom Questionnaire - Post-Exertional Malaise (mDSQ-PEM)
Time Frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Symptom severity is rated on a 5-point Likert scale: 0 = symptom not present, 1 = mild, 2 = moderate, 3 = severe, 4 = very severe.
Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Change in symptom duration, as measured by the Modified DePaul Symptom Questionnaire - Post-Exertional Malaise (mDSQ-PEM)
Time Frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)
Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Chair: Gary M Felker, MD, Duke Clinical Research Institute
  • Study Chair: Barry Make, MD, National Jewish Health
  • Study Chair: Lucinda Bateman, MD, Bateman Horne Center
  • Study Chair: Janna Friedly, MD, MPH, University of Washington

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 17, 2024

Primary Completion (Actual)

March 10, 2026

Study Completion (Estimated)

May 30, 2026

Study Registration Dates

First Submitted

May 3, 2024

First Submitted That Met QC Criteria

May 6, 2024

First Posted (Actual)

May 8, 2024

Study Record Updates

Last Update Posted (Actual)

May 7, 2026

Last Update Submitted That Met QC Criteria

May 5, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The summary of the results will be shared on the study website: https://recovercovid.org/

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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