NCT05866952 · Tufts Medical Center
Ventilatory and Perfusion Abnormalities in Individuals With Post-Acute Sequelae of SARS-CoV-2 Infection
(PASC VQ)
What this study is about
forward-looking group of participants study to evaluate the utility of quantitative CT analysis to assess ventilation and perfusion defects in patients with Post-acute Sequelae of SARS-CoV-2 (PASC) and functional limitations
View original scientific description
Prospective cohort study to evaluate the utility of quantitative CT analysis to assess ventilation and perfusion defects in patients with Post-acute Sequelae of SARS-CoV-2 (PASC) and functional limitations
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Self-reported or documented SARS-CoV-2 infection by RT-PCR or Antigen testing \> 3 months ago or no previous history of SARS-CoV-2 infection (control group only)
- Normal or mild abnormalities on baseline Pulmonary Function Tests (PFTs)
- New or worsening symptoms of chronic fatigue, dyspnea or exercise intolerance after COVID-19 with otherwise unclear etiology (PASC group only)
Exclusion criteria
- SARS-CoV-2 infection by RT-PCR or Antigen testing within the last 3 months
- Inability to provide consent or non-English speaking
- Any respiratory infection in last 4 weeks
- PFT relative contraindications
- History of major cardiovascular, pulmonary, renal, hepatic, autoimmune or neuromuscular disease including asthma, COPD, interstitial lung disease, heart failure, pulmonary arterial hypertension, or prior pulmonary embolism
- Active malignancy undergoing treatment or history of malignancy involving the lung
Where
- Boston, Massachusetts
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 20, 2025 · Source of record for eligibility and locations