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Cardiopulmonary Exercise Tests in Patients With Long COVID

Interrogative Approaches Identify Causes of Physical Impairment in Those Affected by Post COVID-19 Morbidity (Long COVID) - an International Multicenter Observational Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06394921
Acronym
PREPP-19
Enrollment
146
Registered
2024-05-01
Start date
2023-03-01
Completion date
2024-04-30
Last updated
2024-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID Long-Haul, Long COVID

Brief summary

The value of clinical cardiopulmonary exercise testing (CPET) within healthcare settings has been established in the last decade. CPET methods remain highly relevant in the COVID-19 endemic phase and should be used to assess those recovering from COVID-19 (SARS-CoV-2) infection. This diagnostic tool could play an integral role in disease prognostication and evaluate the integrative response to incremental exercise. Date from such assessments can enable practitioners to characterise cardio-respiratory fitness and identify reasons for physical impairment or abnormal cardio-respiratory function. More than 50% of patients admitted to hospital will experience cardiorespiratory issues and significant morbidity during their recovery and will require significant rehabilitative support. In this context, measurements obtained from an assessment of cardio-respiratory responses to physiological stress could provide insight regarding the integrity of the pulmonary-vascular interface and characterisation of any impairment or abnormal cardio-respiratory function. Current approaches to rehabilitation are being developed on existing knowledge from Severe Acute Respiratory Syndrome (SARS) and Acute Respiratory Distress Syndrome (ARDS) related illness. These provide important insight but do not provide insight into the novel challenges provided by COVID-19.

Interventions

PROCEDURE2 day cardiopulmonary exercise test

Consecutive day 2 day CPET and follow up for 7 days for subjective feelings/fatigue.

Sponsors

MS Ramaiah Medical College & Hospitals
CollaboratorOTHER
University of Illinois at Chicago
CollaboratorOTHER
University of Nottingham
CollaboratorOTHER
Northumbria University
CollaboratorOTHER
King's College London
CollaboratorOTHER
University of Derby
CollaboratorOTHER
Sheffield Hallam University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* • Aged 18 to 65 years old * Diagnosed with COVID-19 * Still suffering from symptoms of COVID-19, 3 months after initial infection * Sufficient English language comprehension and cognitive ability to understand the study protocol, give informed consent and follow instructions.

Exclusion criteria

* • \<18 years of age * Admitted to or received treatment from Intensive Care Units * Unconfirmed COVID-19 test diagnosis * Unable to understand verbal or written information in English * Achieving a grade 0 or 1 on the PCFS. * Unstable angina * Uncontrolled hypertension, that is, resting systolic blood pressure (SBP) \>180mmHg, or resting diastolic blood pressure (BP) (DBP) \>110mmHg * Orthostatic blood pressure drop of \>20 mmHg with symptoms * Significant aortic stenosis (aortic valve area 120 bpm) * Acute pericarditis or myocarditis * Decompensated HF * Third degree (complete) atrioventricular (AV) block without pacemaker * Recent embolism * Acute thrombophlebitis * Resting ST segment displacement (\>2 mm) * Uncontrolled diabetes mellitus * Severe orthopaedic conditions that would prohibit exercise * Other metabolic conditions, such as acute thyroiditis, hypokalaemia, hyperkalaemia or hypovolaemia (until adequately treated) * Severe grade 3 rejection (cardiac transplantation recipients Appendix N).

Design outcomes

Primary

MeasureTime frameDescription
Cardiopulmonary Exercise Test- Rate of Oxygen UtilisationDuring CPET1 and CPET2Rate of Oxygen Utilisation (VO2; l/min)
Prevalence of symptoms of post exertional Malaise7 days post exerciseSymptom Profile post exercise protocols- Questionnaire
Cardiopulmonary Exercise Test- Blood lactateDuring CPET1 and CPET2Blood Lactate Concentration from fingertip (mmol/l)
Cardiopulmonary Exercise Test- Minute VentilationDuring CPET1 and CPET2Minute Ventilation using breath by breath (l/min)
Cardiopulmonary Exercise Test- Respiratory ThresholdDuring CPET1 and CPET2Respiratory Threshold breath by breath (l/min)
Cardiopulmonary Exercise Test: Maximal Rate of Oxygen UtilisationDuring CPET1 and CPET2Maximal Rate of Oxygen Utilisation per kg body mass (VO2max; ml/kg/min)
Cardiopulmonary Exercise Test- Respiratory Exchange RatioDuring CPET1 and CPET2Respiratory Exchange Ratio (VO2/VCO2)
Cardiopulmonary Exercise Test- Rate of carbon dioxide productionDuring CPET1 and CPET2Rate of Carbon Dioxide Production (VCO2; l/min)

Secondary

MeasureTime frameDescription
Blood biomarkers of Inflammation- IL-6Day 1 and Day 2Concentration of Interleukin 6
Blood biomarkers of Inflammation- IL-1Day 1 and Day 2Concentration of Interleukin 1
Blood biomarkers of Inflammation- MicroclotsDay 1 and Day 2Number of Microclots
Blood biomarkers of Inflammation- D-DimerDay 1 and Day 2D-Dimer Concentration
Blood biomarkers of Inflammation- CRPDay 1 and Day 2C-Reactive protein Concentration
EchocardiogramBaseline, Day 1 and Day 212 lead echocardiogram.
Resting Systolic Blood PressureBaseline, Day 1 and Day 2Systolic Blood Pressure at Rest (mmHg)
Resting Diastolic Blood PressureBaseline, Day 1 and Day 2Diastolic Blood Pressure at Rest (mmHg)
Exercise Diastolic Blood PressureBaseline, Day 1 and Day 2Diastolic Blood Pressure During Exercise (mmHg)
Exercise Systolic Blood PressureBaseline, Day 1 and Day 2Systolic Blood Pressure During Exercise (mmHg)

Other

MeasureTime frameDescription
Symptom Profile QuestionnaireBaselineDescription of previous and current symptom/s of Long COVID
Quality of Life questionnaireBaselineEQ-5D-5L
6 minute walkBaseline6 minute walk distance (metres)
CognitionBaselineMontreal cognitive assessment
Post COVID-19 functional status ScaleBaselineQuestionnaire to see effect of COVID-19 on physical function- 0= No Limitations; 4- Severe Limitations to function
Medical Research Council Dyspnoea ScaleBaselineBreathlessness scale
Fatigue Questionnaire- MFIBaseline, Day 1 and Day 2Multidimensional Fatigue Index (MFI-20)
Fatigue Questionnaire- FASBaseline, Day 1 and Day 2Fatigue Assessment Scale
Sleep BehavourBaselinePittsburgh Sleep Quality Index
Timed Up and GoBaseline5m timed up and go (seconds)
Lung Function Assessment- FEV1BaselineForced Expiratory Volume in 1 Second (l)
Lung Function Assessment- FVCBaselineForced Vital Capacity (l)
Lung Function Assessment- PEFBaselinePeak Expiratory Flow Rate (l/min)
Lung Function Assessment- MIPBaselineMaximal Inspiratory Pressure (mmHg)
Lung Function Assessment- MEPBaselineMaximal Expiratory Pressure (mmHg)
HeightBaselinemeasurement of body stature (m)
WeightBaselineMeasurement of body mass (kg)
body mass indexBaselineweight and height will be combined to report BMI in kg/m\^2

Countries

India, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026