Purpose

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.

Conditions

Eligibility

Eligible Ages
Over 60 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

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

Exclusion Criteria

  • 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)

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention 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
Primary Purpose
Prevention
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description
Participants randomized using the randomization model in REDCAP. Study drug/placebo will be provided by an external pharmacy. Study drugs will be numbered and patients allocated to study drug using a randomisation model. Unblinding will only occur when the study finishes or if safety issues require.

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Fluvoxamine
100 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.
  • Drug: Fluvoxamine
    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
    Other names:
    • Oral Fluvoxamine 100 mg capsules (immediate release)
Placebo Comparator
Placebo
Placebo 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.
  • Drug: Placebo
    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
    Other names:
    • microcrystalline cellulose

Recruiting Locations

Washington University in St. Louis and nearby locations

Washington University School of Medicine/Barnes-Jewish Hospital
St Louis, Missouri 63110
Contact:
Sarah Knarr
314-362-2415
knarr.sarah@wustl.edu

More Details

NCT ID
NCT06969287
Status
Recruiting
Sponsor
Washington University School of Medicine

Study Contact

Sarah Knarr
3143622415
knarr.sarah@wustl.edu

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.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.