NCT06721949RecruitingPhase 2/3
Taurine Supplementation in Long COVID
Taurine Supplementation as a Novel Therapeutic Approach for Neurocognitive Symptoms in Long COVID
Source: ClinicalTrials.gov · Last updated 18 Sept 2026
Brief summary (registry, in English)
The COVID-19 pandemic has swept across the globe, affecting millions of individuals with varying degrees of severity. While many individuals recover from the acute phase of the infection, a significant proportion continue to experience persistent and debilitating symptoms long after the initial SARS-CoV-2 infection. This condition, known as Long COVID (LC) or sometimes referred to as Post-COVID Condition (PCC) or post-acute sequelae of COVID-19, has emerged as a complex multisystemic condition and challenging health issue, affecting approximately 10% of COVID-19 patients. Various symptoms characterize LC, including fatigue, sleep disturbances, cognitive impairment, and mood disturbances. Some of the symptoms are shared with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) - a condition marked by debilitating fatigue and a host of other symptoms without precise biomarkers or objective tests for diagnosis. Effective LC treatments remain elusive and LC patients continue to grapple with persistent symptoms that significantly impact their quality of life. Given the lack of effective treatments, it is imperative to explore novel therapeutic approaches that may alleviate the suffering of this patient population.
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 2/3
- Study type
- Interventional
- Enrollment
- 300 (estimated)
- First submitted
- 28 Nov 2024
- Start date
- 18 Nov 2025
- Primary completion date
- Feb 2028
- Lead sponsor
- University of Alberta
- Diseases
- Long COVID and ME/CFS
- NCT number
- NCT06721949
What you commit to
- Study type: Interventional · Phase 2/3
- Planned participants: 300
- From 18 Nov 2025 to the primary completion date, Feb 2028
- 5 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Patients who had mechanical ventilation or extracorporeal membrane oxygen (ECMO) for COVID-19.
- Current end-organ failure, organ transplantation, or current hospitalization in an acute care hospital.
Other
- Contraindications to the study intervention.
- Currently already on study intervention(s).
- Co-enrolment in another interventional trial (co-enrolment in an observational study is permitted).
- Currently pregnant or breastfeeding.
- The participant is currently enrolled in another clinical trial to treat neurocognitive symptoms in LC.
Who the study is looking for
- Age ≥18 years;
- Positive COVID-19 test by nasopharyngeal swab RT-PCR test, antibody or antigen tests at least 3 months prior to randomization; OR Presumed COVID-19 assessed by the site investigator (no positive COVID-19 test) with acute illness after October 15, 2019, and at least 3 months prior to randomization.
- If participants have treatable symptoms, they should have had a stable regimen of treatment prior to entering the study (i.e. started treatment for at least 4 weeks).
- Lingering COVID-19 symptoms beyond 3 months from onset of acute COVID and symptoms have lasted at least 2 months. The onset of COVID is considered the earliest of two dates: the date of positive testing or the date of first symptoms.
- Lingering symptoms from COVID-19 present at the time of randomization.
- Individuals of childbearing potential (as assessed by the overseeing Investigator) who are sexually active must agree to practice true abstinence or use at least one highly effective method of contraception while on study treatment. Highly effective methods of contraception must be discussed and approved by the overseeing Investigator (refer to Section 5 Contraception of the Master Protocol, and Section 13.1.2 of this protocol).
- Must be able to provide informed consent and both willing and able to comply with study requirements.
- Medications prescribed for treating fatigue or cognition have been discontinued for four weeks prior to enrolment and randomization. These include sildenafil, modafinil (Provigil), or armodafinil (Nuvigil), guanfacine, N-acetyl cysteine, and stimulant medications used for attention-deficit hyperactivity disorder (ADHD).
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (5)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Alberta Hospital/Kaye Edmonton Clinic Coordinator of this site? Confirm its status | Edmonton | Canada | Recruiting |
| Institut de Recherches Cliniques de Montreal Coordinator of this site? Confirm its status | Montreal | Canada | Recruiting |
| Centre integre universitaire de sante et de services sociaux de l'Estrie - Centre Hospitalier Universitaire de Sherbrooke Coordinator of this site? Confirm its status | Sherbrooke | Canada | Recruiting |
| University Health Network Coordinator of this site? Confirm its status | Toronto | Canada | Recruiting |
| BC Women's Hospital Coordinator of this site? Confirm its status | Vancouver | Canada | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.