A Study of Amantadine for Cognitive Dysfunction in Patients With Long-Covid

NCT ID: NCT06234462

Last Updated: 2025-08-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

WITHDRAWN

Clinical Phase

PHASE2

Study Classification

INTERVENTIONAL

Study Start Date

2025-06-30

Study Completion Date

2025-10-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Purpose: To decrease symptom burden, improve cognitive function, improve endurance, and decrease fatigue in subjects with post-acute sequelae of COVID-19 (PASC) or "long-hauler" COVID using amantadine. If amantadine use is determined to be efficacious in this population, the findings of this study will be used towards a subsequent randomized control trial.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study is a prospective, open-label, single-blind, randomized control study. Study duration is approximately 6 weeks starting at the baseline visit. We will recruit 30 participants (15 per arm) for this pilot study.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Long COVID Post-Acute COVID-19 Syndrome

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Standard of Care

Participants in this arm will receive current standard of care for PASC symptoms which may include: PT, OT, SLP, provider counseling, and/or pharmacologic interventions for targeted symptom management.

Group Type ACTIVE_COMPARATOR

Physical, Occupational, Speech Therapy

Intervention Type OTHER

Physical Therapy (PT) and Occupational Therapy (OT) train patients on breathing exercises and gradual reconditioning. Patients are referred to speech therapy (SLP) for cognitive remediation and metacognitive strategies.

Provider Counseling

Intervention Type OTHER

Clinic providers will provide counseling/education on Long-COVID.

Medications for symptoms management

Intervention Type OTHER

Clinic providers may recommend targeted pharmacologic management for symptoms the patient is experience. As an example, if a patient reports a headache the provider may recommend over-the-counter or prescription medications to target this particular symptom.

Standard of Care + Amantadine

Participants in this arm will review standard of care and amantadine.

Group Type EXPERIMENTAL

Amantadine

Intervention Type DRUG

Participants that have been randomized to the study group will be instructed to begin taking amantadine on the day after this study visit. They will self-administer amantadine 100 mg twice daily (morning and noon) for four weeks

Physical, Occupational, Speech Therapy

Intervention Type OTHER

Physical Therapy (PT) and Occupational Therapy (OT) train patients on breathing exercises and gradual reconditioning. Patients are referred to speech therapy (SLP) for cognitive remediation and metacognitive strategies.

Provider Counseling

Intervention Type OTHER

Clinic providers will provide counseling/education on Long-COVID.

Medications for symptoms management

Intervention Type OTHER

Clinic providers may recommend targeted pharmacologic management for symptoms the patient is experience. As an example, if a patient reports a headache the provider may recommend over-the-counter or prescription medications to target this particular symptom.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Amantadine

Participants that have been randomized to the study group will be instructed to begin taking amantadine on the day after this study visit. They will self-administer amantadine 100 mg twice daily (morning and noon) for four weeks

Intervention Type DRUG

Physical, Occupational, Speech Therapy

Physical Therapy (PT) and Occupational Therapy (OT) train patients on breathing exercises and gradual reconditioning. Patients are referred to speech therapy (SLP) for cognitive remediation and metacognitive strategies.

Intervention Type OTHER

Provider Counseling

Clinic providers will provide counseling/education on Long-COVID.

Intervention Type OTHER

Medications for symptoms management

Clinic providers may recommend targeted pharmacologic management for symptoms the patient is experience. As an example, if a patient reports a headache the provider may recommend over-the-counter or prescription medications to target this particular symptom.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age 20-65
* Can provide informed consent
* Confirmed COVID+ test (either rapid antigen or PCR) between 8 weeks and one year prior to initial visit.
* Able to consent in English
* Endorse symptoms during their initial evaluation and history with the provider that began around the time of the acute COVID19 infection (subjective) including cognitive changes such as cognitive fatigue, brain fog, memory issues,attention issues AND have symptoms in at least 1 out of the 2 following symptom categories:
* Category 1: Decreased endurance, physical fatigue, weakness
* Category 2: Depression, anxiety

Exclusion Criteria

* Known hypersensitivity to amantadine
* Clinically significant psychiatric, neurologic, renal, hepatic, opthalmologic, cardiac impairment in the opinion of the investigators, including but not limited to:
* Psychiatric:
* Acute or chronic unstable Axis I psychiatric illness
* History of psychosis
* Severe depression Patient Health Questionnaire-9 (PHQ-9) score \>= 20
* Suicidality
* Neurologic:
* Epilepsy
* Cognitive dysfunction predating COVID infection
* History of delirium
* Neurologic conditions with agitation or confusion
Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

University of Texas Southwestern Medical Center

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Amy Mathews

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Amy Mathews, M.D.

Role: PRINCIPAL_INVESTIGATOR

UT Southwestern Medical Center

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

UT Southwestern Medical Center

Dallas, Texas, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

STU-2023-0234

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Convalescent Plasma vs. Standard Plasma for COVID-19
NCT04344535 TERMINATED PHASE1/PHASE2
Pyridostigmine in Severe SARS-CoV-2 Infection
NCT04343963 UNKNOWN PHASE2/PHASE3
Use of Convalescent Plasma for COVID-19
NCT04408040 TERMINATED PHASE2