Fluvoxamine for Long COVID-19
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05874037 |
Recruitment Status :
Recruiting
First Posted : May 24, 2023
Last Update Posted : August 14, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Long COVID | Drug: Fluvoxamine | Phase 2 Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 300 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | FLUVOXAMINE AS A TREATMENT FOR LONG COVID-19: A RANDOMIZED PLACEBO CONTROLLED TRIAL |
Actual Study Start Date : | May 15, 2023 |
Estimated Primary Completion Date : | May 15, 2025 |
Estimated Study Completion Date : | May 15, 2025 |

Arm | Intervention/treatment |
---|---|
Experimental: Fluvoxamine |
Drug: Fluvoxamine
Fluvoxamine is an FDA approved drug for the treatment of OCD. This trial is testing the effects of the drug on long COVID. |
Placebo Comparator: Placebo |
Drug: Fluvoxamine
Fluvoxamine is an FDA approved drug for the treatment of OCD. This trial is testing the effects of the drug on long COVID. |
- Number of participants with improvement of long COVID symptoms [ Time Frame: Approximately 18 weeks ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 25 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Men and woman age 25 and older;
- Not currently hospitalized
- Participant self-report of past acute COVID episode with symptom onset and/or initial positive test at least 3 months since initial COVID symptoms and/or test confirming SARS-CoV-2 infection Note: Since some people with long COVID may not have been able to obtain testing during the acute phase of illness, history of a positive COVID-19 test is not required. We will collect data regarding the results of any past COVID-19 testing, but this will not affect eligibility for the trial.
- Currently symptomatic with self-reported worsening of cognitive function for at least the past 2 months, that could not be better explained by other reasons (i.e. alternative diagnosis or medication changes).
- Able to provide informed consent.
- Currently reside in Missouri or Illinois
Exclusion Criteria:
- Illness severe enough to require hospitalization at the time of starting the study.
- Unstable medical comorbidities (eg decompensated cirrhosis), per patient report and/or medical records.
- Immunocompromised from the following: solid organ transplant, BMT, high dose steroids (>20mg prednisone per day), or tocilizumab
- Already enrolled in another COVID 19 medication trial (not including vaccination or prophylaxis trials)
- Unable to provide informed consent
- Unable to perform the study procedures, including not being a resident of the states of Missouri or Illinois
- Taking donepezil (rationale: donepezil is a S1R agonist), or sertraline (rationale: sertraline is a strong sigma-1 antagonist).
- Taking phenytoin (rationale: fluvoxamine inhibits its metabolism), clopidogrel (rationale: fluvoxamine inhibits its metabolism from pro-drug to active drug which raises risk of cardiovascular events), and St John's wort (rationale: fluvoxamine + St John's wort are considered contraindicated because of the risk of serotonin syndrome)
- Taking SSRIs or SNRIs.
- Individuals who report they have bipolar disorder or are taking medication for bipolar disorder (lithium, valproate, high-dose antipsychotic), unless the investigator concludes that the risk for mania is unlikely (ie it is doubtful that the patient actually has bipolar disorder).
- Individuals who take alprazolam or diazepam and are unwilling to cut the medication by 25% (rationale: fluvoxamine modestly inhibits the metabolism of these drugs).
- Participants taking theophylline, tizanidine, clozapine, or olanzapine (drugs with a narrow therapeutic index that are primarily metabolized by CYP 1A2, which is inhibited by fluvoxamine) will be reviewed with a study investigator and excluded unless the investigator concludes that the risk to the participant is low (this would be unlikely; example: participant takes tizanidine only as needed and is willing to avoid it during study duration).

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05874037
Contact: Angela Stevens | 314-362-6291 | stevens.a@wustl.edu |
United States, Missouri | |
Washington University School of Medicine | Recruiting |
Saint Louis, Missouri, United States, 63110 | |
Contact: Angela Stevens stevens.a@wustl.edu |
Principal Investigator: | Eric Lenze, MD | Washington University School of Medicine |
Responsible Party: | Washington University School of Medicine |
ClinicalTrials.gov Identifier: | NCT05874037 |
Other Study ID Numbers: |
202211024 |
First Posted: | May 24, 2023 Key Record Dates |
Last Update Posted: | August 14, 2023 |
Last Verified: | August 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | Yes |
Post-Acute COVID-19 Syndrome COVID-19 Pneumonia, Viral Pneumonia Respiratory Tract Infections Infections Virus Diseases Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases Post-Infectious Disorders Chronic Disease |
Disease Attributes Pathologic Processes Fluvoxamine Anti-Anxiety Agents Tranquilizing Agents Central Nervous System Depressants Physiological Effects of Drugs Psychotropic Drugs Selective Serotonin Reuptake Inhibitors Neurotransmitter Uptake Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Neurotransmitter Agents Serotonin Agents Antidepressive Agents, Second-Generation |