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CompletedNCT06404060Updated Jul 8, 2026

RECOVER-ENERGIZE Platform Protocol_Appendix A (Exercise Intolerance)

An interventional study of Personalized Cardiopulmonary Rehabilitation and Education in Long COVID, Long Covid19 and Long Covid-19, sponsored by Duke University. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-08.

Sponsored by Duke University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
360
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

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.

Read the 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.

02

Conditions studied

  • Long COVID
  • Long Covid19
  • Long Covid-19

Keywords

  • PASC
  • Exercise
  • PEM (post exertional malaise)
03

In context

Post-Acute COVID-19 Syndrome

520 studies on the registry are indexed under Post-Acute COVID-19 Syndrome; 186 are open to participants now.

This study's enrollment of 360 is above the median of 60 across 361 interventional studies indexed under Post-Acute COVID-19 Syndrome.

Browse Post-Acute COVID-19 Syndrome studies →

Lead sponsor

Duke University is the lead sponsor of 2,025 studies on the registry; 275 are open to participants now.

Of its 194 completed or terminated interventional studies of FDA-regulated products, 159 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

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
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
360 participants (actual)

Study arms

  • 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).

    Behavioral: Personalized Cardiopulmonary Rehabilitation

  • 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.

    Other: Education

Interventions

  • BehavioralPersonalized Cardiopulmonary Rehabilitation

    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.

  • OtherEducation

    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.

06

What researchers measure

Primary outcomes

  1. Change in Endurance Shuttle Walk Test (ESWT)

    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.

    Time frame: Baseline, week 12 (End of Intervention (EOI))

Secondary outcomes

  1. Change in physical function, as measured by the PROMIS SF-Physical Function (PROMIS-PF)

    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.

    Time frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)

  2. 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)

  3. Change in symptom frequency, as measured by the Modified DePaul Symptom Questionnaire - Post-Exertional Malaise (mDSQ-PEM)

    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.

    Time frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)

  4. Change in symptom severity, as measured by the Modified DePaul Symptom Questionnaire - Post-Exertional Malaise (mDSQ-PEM)

    Symptom severity is rated on a 5-point Likert scale: 0 = symptom not present, 1 = mild, 2 = moderate, 3 = severe, 4 = very severe.

    Time frame: Baseline, week 6 (middle of intervention), week 12 (EOI) and week 24 End of Study (EOS)

  5. 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)

07

Study locations

1 site
  • All sites listed under NCT06404047
    Durham, North Carolina 27710, United States
08

References and documents

Publications

  • Friedly J, Bateman L, Berdan LG, Casaburi R, Erdmann N, Felker GM, Itchon-Ramos N, Keteyian SJ, MacIntyre N, O'Brien L, Reist C, Rossiter HB, Silverstein A, Taylor E, Pike Welch H, Yanez ND, Zimmerman KO, Make B. Rationale and Design of RECOVER-ENERGIZE: A Platform Clinical Trial of Interventions for Exercise Intolerance With and Without Post-exertional Malaise in Long COVID. medRxiv [Preprint]. 2026 Jun 3:2026.06.02.26354455. doi: 10.64898/2026.06.02.26354455. PubMed 42282195 ↗

Related links

Study documents

  • Informed consent form · Apr 15, 2025

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — The summary of the results will be shared on the study website: https://recovercovid.org/

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 8, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06404060
Lead sponsor
Duke University
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Responsible party
Sponsor
First posted
May 8, 2024
Start date
Jul 17, 2024
Primary completion
Mar 10, 2026
Completion
May 5, 2026
Last update
Jul 8, 2026

Study contacts

Gary M Felker, MD
study chair · Duke Clinical Research Institute
Barry Make, MD
study chair · National Jewish Health
Lucinda Bateman, MD
study chair · Bateman Horne Center
Janna Friedly, MD, MPH
study chair · University of Washington

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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