NCT05977179 · University of Maryland, Baltimore
Dietary Intervention to Mitigate Post-Acute COVID-19 Syndrome
(Long-COVIDiet)
What this study is about
The primary objective of this study is to conduct a 16-week randomly assigned controlled trial aimed at investigating the effectiveness of the Whole-Diet Approach when following a healthy US-style diet rich in anti-inflammatory properties.
View original scientific description
The primary objective of this study is to conduct a 16-week randomized controlled trial aimed at investigating the effectiveness of the Whole-Diet Approach when following a healthy US-style diet rich in anti-inflammatory properties. The study will focus on evaluating its impact on reducing symptoms related to Post-Acute Sequelae of SARS-CoV-2 Infection (PACS) in adults aged 50 years and older. The main research questions this study aims to answer are: 1. Does adhering to a healthy US-style diet, which is abundant in anti-inflammatory properties, effectively mitigate fatigue symptoms in adults with PACS? 2. Does adhering to a healthy US-style diet, which is abundant in anti-inflammatory properties, effectively mitigate declines in muscle function and physical performance in adults with PACS? At the beginning of the study, eligible participants will be randomly assigned to either the Dietary Intervention Group, where they will receive personalized dietary plans and weekly sessions, or the Attention Control Group, where they will attend general health sessions on a weekly basis as well. This research intends to shed light on the potential benefits of the Whole-Diet Approach and its role in ameliorating PACS-related symptoms among older adults. By comparing the outcomes of the two groups, we hope to gain valuable insights into the effectiveness of this dietary intervention in improving the quality of life for individuals dealing with PACS.
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
- Age of 50 years or older
- No known active infectious disease (COVID-19 or other).
- Participant diagnosed with long-COVID/ post- acute COVID-19 syndrome (PACS) /ICD-10-CM codes U09.9
- Moderate/severe fatigue Brief Fatigue Inventory (BFI)≥4
- Poor diet quality assessed by the short Healthy Eating Index (HEI)\<70
Exclusion criteria
- Participants with a home oxygen requirement or requiring chronic ventilator support
- Participants diagnosed with diabetes who do not have a recent HbA1c level or with HbA1c \> 9%
- Participants diagnosed with Congestive Heart Failure (CHF New York Heart Association) \> class 2
- Participants with dietary restrictions due to medication use that affects blood clotting, such as Warfarin or other reasons.
- Evidence of any condition as determined by a physician or the study team that would lead to an increased risk of illness due to any aspect of proposed testing and interventions, or introduce unanticipated confounding of study results.
- Participants diagnosed with uncontrolled hypertension that will be defined as:
- Systolic blood pressure consistently equal to or higher than 190 mmHg.
- Diastolic blood pressure consistently equal to or higher than 110 mmHg.
- Participants with a recent history of hypertensive crisis (severe elevation in blood pressure requiring immediate medical intervention), regardless of current blood pressure levels.
- Participants with diet restrictions or allergies that can affect adherence to the diet, such as allergy to fish or shellfish.
- Participation in another trial in which active intervention is being received.
- Participants with active drug or alcohol use/dependence that would interfere with adherence to the study.
- Participants scheduled for surgical procedures within the next 6 months.
- Participants diagnosed with active cancer.
- Participants diagnosed with liver diseases.
- Participants diagnosed with kidney-related conditions, including Chronic Kidney Disease (CKD) \> stage 3.
- Below the age of 50 years.
Where
- Baltimore, Maryland
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 Jun 23, 2026 · Source of record for eligibility and locations