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DeliriumPhase 3MD FluNCSNCT06969287

Mitigating Delirium With Fluvoxamine Treatment for Non-Cardiac Surgery

A Phase 3 study testing Fluvoxamine in people with Delirium and Surgery-Complications, run by Washington University School of Medicine at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The investigation will establish biological plausibility and infrastructure required for a multisite clinical trial evaluating the re-purposing of fluvoxamine to mitigate postoperative delirium risk in geriatric patients undergoing non-cardiac non-intracranial surgery. Read more about this study

Who is it for?
Ages 60 years and older
Conditions the study is for
Delirium, Surgery-Complications
What is being tested?
Fluvoxamine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
46 participants
Where
1 siteUnited States
Study dates
6 Apr 2026to 1 Apr 2028
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • English-speaking
  • elective non-cardiac or non-intracranial surgery requiring at least a 2-day hospital length of stay

Who cannot join

  • Received investigational drug within the last 7 weeks
  • lack of capacity to provide informed consent
  • prior known intolerance or allergy to SSRIs or fluvoxamine
  • planned postoperative ventilation
  • drug or alcohol dependence
  • preoperative use of non-NSAID medications with drug-drug interactions of Class X (Avoid Combination) or D (Consider Therapy Modification)
  • risk of serotonin syndrome (St John's Wort, SSRIs, or TCA)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • Washington University School of Medicine/Barnes-Jewish Hospital

    St Louis, Missouri, 63110

    Sarah Knarr, 314-362-2415, knarr.sarah@wustl.edu

    Ben Palanca, MD

    Recruiting

Other trials in United States

About this study

Official title: Mitigating Delirium With Fluvoxamine Treatment for Non-Cardiac Surgery (MD FluNCS)

The investigation will establish biological plausibility and infrastructure required for a multisite clinical trial evaluating the re-purposing of fluvoxamine to mitigate postoperative delirium risk in geriatric patients undergoing non-cardiac non-intracranial surgery.

Read the detailed description

Delirium is a disturbance in attention, cognition, and consciousness, an acute physiological consequence of medical events, such as hospital admission, surgery, sepsis, and pharmacological intervention. There are currently no standard pharmacologic interventions to prevent delirium in any setting. The investigation will lay the groundwork for a larger-scale Phase 3 trial geared toward advancing long-term goal of improving public health and quality of life for those at risk of postoperative delirium and related sequelae.

The study assumes that neuroinflammation is a key contributor to the pathogenesis of postoperative delirium, a matter of conjecture. The investigators will directly test systemic inflammation as a proxy for neuroinflammation. The investigation will test whether fluvoxamine may be associated with reduced systemic inflammation, markers of neural dysfunction, and delirium severity.

This potential therapeutic approach has potential generalizability to different clinical settings and already proved useful for COVID-19. The investigators combine the need to develop a collaborative clinical trials platform across diverse healthcare settings with key mechanistic studies that will advance our understanding of the pathogenesis of delirium. These studies will leverage high-density EEG recordings and state-of-the-art plasma biomarker collection, providing key data on the biological plausibility for a fluvoxamine effect.

Being tested
Fluvoxamine, Placebo
Keywords
delirium, geriatric, surgery, fluvoxamine
Medical subject headings
Delirium

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • FluvoxamineDrug

    Also called Oral Fluvoxamine 100 mg capsules (immediate release)

    100mg Fluvoxamine Capsule

    1. Day of surgery - Study drug to be taken morning of surgery and evening of surgery
    2. Post-operative day 1 - Study drug to be taken morning and evening
  • PlaceboDrug

    Also called microcrystalline cellulose

    Placebo Capsule

    1. Day of surgery - Study drug to be taken morning of surgery and evening of surgery
    2. Post-operative day 1 - Study drug to be taken morning and evening
Study groups in NCT06969287
Study groupRoleWhat they receive
FluvoxamineExperimental100 mg of fluvoxamine on the morning of surgery (POD 0), 100 mg on the evening of surgery (POD 0), 100 mg on the morning of POD 1, and 100 mg on the evening of POD 1. All administered as PO capsules.
Receives: Drug: Fluvoxamine
PlaceboPlacebo comparatorPlacebo capsule on the morning of surgery (POD 0), Placebo capsule on the evening of surgery (POD 0), Placebo capsule on the morning of POD 1, and Placebo capsule on the evening of POD 1. All administered PO.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Average Monthly participant enrollment rate

    Feasibility assessed as number of eligible participants enrolled per month by an audit of the study screening and recruitment logs.

    Measured: 12- months, duration of the study

Secondary outcomes (2)
  1. Average Monthly screen failure rate

    Feasibility assessed as number of screening failures per month by an audit of the study screening and recruitment logs.

    Measured: 12- months, duration of the study

  2. Average Monthly rate of withdrawal

    Feasibility assessed as number of withdrawals per month by an audit of the study screening and recruitment logs.

    Measured: 12- months, duration of the study

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 May 2025
  2. Study start6 Apr 2026
  3. Primary completion1 Apr 2027 (estimated)
  4. Study completion1 Apr 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Oral Fluvoxamine 100 mg tablets (immediate release) Study drug (100mg Fluvoxamine tablet or placebo) will be administered at the following times: 1. Day of surgery - Study drug to be taken morning of surgery and evening of surgery 2. Post-operative day 1 - Study drug to be taken morning and evening
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
46 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06969287
Sponsor's protocol ID
202411151
Other IDs
R21AG086855
Acronym
MD FluNCS
Status last verified
Apr 2026
First submitted
30 Apr 2025
Last updated
29 Apr 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Study protocol will be released in manuscript form. Outcome data will be uploaded to the OpenNeuro on a rolling basis.

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Fluvoxamine in people with Delirium and Surgery-Complications, run by Washington University School of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 29 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Sarah Knarr (3143622415, knarr.sarah@wustl.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Average Monthly participant enrollment rate (time frame: 12- months, duration of the study). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Apr 2026.

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