Brain Fog

6

Review clinical trials related to Brain Fog. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Not yet recruiting

ME/CFS Brain Fog: Cognitive Rehabilitation Trial

The purpose of this study is to compare two approaches to cognitive rehabilitation in adults with post-viral cognitive syndrome, which resulted in brain fog. All participants will be screened for eligibility prior to participation. Most of the procedures will take place over a phone call or secure telehealth platform (i.e., Zoom). However, participants will be asked to visit UAB on three occasions for blood sample collection and brain imaging (about 2 hours each). Online testing will happen one month before treatment, one day before treatment, one day afterwards, and 6 months afterwards. The study will utilize two different forms of rehabilitation training to improve participants' cognitive ability. Participants will be randomized to one of the two treatment groups. The first treatment approach, known as Constraint-Induced Cognitive Therapy (CICT), will feature (A) web-based computer "games" that trains how quickly individuals process information that they receive through their senses; (B) online training on everyday activities with important cognitive components, (C) procedures designed to transfer improvements in cognition from the treatment setting to everyday life, and (D) a non-invasive form of vagus nerve stimulation, also known as trans-auricular VNS (taVNS). The second approach, known as Brain Fitness Training (BFT), will include (A) web-based computer "games" that train reaction time and eye-hand coordination; (B) in-lab training on relaxation, breathing, healthy nutrition, and healthy sleep, (C) education about how relaxation, breathing, nutrition, and sleep are connected to thinking effectiveness, and (D) taVNS. Approximately 30 hours of training will be conducted over a secure telehealth platform (i.e., Zoom) in the span of two- to four- weeks. A typical CICT session will consist of one hour of gaming, with the bulk of the session being spent on cognitive training of the target behaviors and procedures designed to promote transfer of therapeutic gains to daily life. ta-VNS will be administered for 10 minutes before gaming and in-lab target behavior training. A typical BFT session will consist of one hour of gaming, training on healthy lifestyle behaviors (i.e., healthy sleep, nutrition, and relaxation habits), as well as procedures designed to promote transfer of behavior changes to daily life. Ta-VNS will be administered for 10 minutes before gaming and in-lab target behavior training. Training sessions in both conditions will be scheduled based on participants' availability, with the options for sessions scheduled to be as close as every weekday over 2 weeks or as loosely as every other weekday (i.e., over a 4-week span). If a caregiver is available, they will receive training on how to best support participants in their therapeutic program. After the training ends, both groups will receive 4 follow-up phone calls approximately one week apart to promote integration of the gained skills into everyday life. Outcomes measured will include cognitive processing speed, cognitive function on laboratory tests, and spontaneous performance of everyday activities with important cognitive components in daily life.

Participants needed: 30
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of Alabama at BirminghamUpdated: Jun 8, 2026Locations: 1
Eligibility criteria

diagnosis of ME/CFS that preceded cognitive complaints [+12]

cognitive impairment due to a developmental disability, psychiatric disorder, or... [+13]

Status: Recruiting

Long COVID Brain Fog: Cognitive Rehabilitation Trial

This study will compare two approaches to cognitive rehabilitation in adults with long COVID with persistent, mild to moderate, cognitive impairment. One approach will feature (A) web-based computer "games" that trains how quickly individuals process information that they receive through their senses; (B) in-lab training on everyday activities with important cognitive components, (C) procedures designed to transfer improvements in cognition from the treatment setting to everyday life, and (D) a non-invasive form of vagus nerve stimulation (VNS), i.e., trans-auricular VNS (taVNS). Component B will include work-related tasks. This approach is termed Constraint-Induced Cognitive Therapy (CICT). The other approach will feature (A) web-based computer "games" that train reaction time and eye-hand coordination; (B) in-lab training on relaxation, healthy nutrition, and healthy sleep, (C) procedures designed to promote integration of these lifestyle changes into everyday life, and (D) taVNS. This approach is termed Brain Fitness Training (BFT). A subset of participants, who qualify for and and desire vocational rehabilitation (VR), will receive VR from the Alabama Department of Rehabilitation Services (ADRS) in addition to CICT or BFT. ADRS VR will include career counseling, prescription of on-the-job accommodations, and guidance on return-to-work. Those in the CICT + VR group will also receive on-the-job coaching from a peer mentor for a month after completing training. CICT, with or without VR, will involve 30 hours of training. Ten 3-hour in-lab, face-to-face, therapist-directed sessions will be scheduled. These sessions will feature one hour of gaming; the remainder will be committed to in-lab training on the target behaviors and the procedures designed to promote transfer of therapeutic gains to daily life and improving skills essential to work; the set of the latter procedures is termed the Transfer Package. ta-VNS will administered for 10 minutes before gaming and in-lab target behavior training. To accommodate the demands of participants' other activities, training sessions will be permitted to be scheduled as tightly as every weekday over 2 weeks or as loosely as every other weekday or so over 4 weeks. If a family caregiver is available, they will receive training on how to best support participants in their therapeutic program. After training ends, four follow-up phone calls will be scheduled approximately one-week apart with participants to promote integration of the skills gained during training into everyday life. BFT, with or without VR, will involve 30 hours of training following the same schedule as for CICT. Ten 3-hour in-lab, face-to-face, therapist-directed sessions will be scheduled. These sessions will feature one hour of gaming; the remainder will be committed to in-lab training on the target behaviors (healthy sleep, nutrition and relaxation habits) and the procedures designed to promote transfer of behavior change to daily life. ta-VNS will be administered for 10 minutes before gaming and in-lab target behavior training. If a family caregiver is available, they will receive training on how to best support participants in their therapeutic program. After training ends, four follow-up phone calls will be scheduled approximately one-week apart with participants to promote integration of the skills gained during training into everyday life. Participants will be randomly assigned to the interventions. Randomization will be stratified by whether participants qualify for and desire VR from ADRS or not. If yes, participants will be randomized in equal numbers to CICT + VR or BFT + VR. If no, participants will be randomized in equal numbers to CICT or BFT. Testing will happen one month before treatment, one day before treatment, one day afterwards, and 6-months afterwards. Outcomes measured will include cognitive processing speed, cognitive function on laboratory tests, and spontaneous performance of everyday activities with important cognitive components in daily life. Another important outcome measure will be whether or not participants were able to return back to work or had significant improvements in their work activities.

Participants needed: 30
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University of Alabama at BirminghamUpdated: Apr 13, 2026Locations: 1
Eligibility criteria

>3 months post COVID [+9]

cognitive impairment due to developmental disability, psychiatric disorder, or s... [+4]

Status: Recruiting

A Study to Evaluate the Effects of a Supplement on the Side Effects Associated With Stimulant Medications

This is a hybrid, two-arm, triple-blind, placebo-controlled, randomized clinical trial evaluating the efficacy of the Stasis supplement on reducing oxidative stress, cortisol levels, and side effects associated with stimulant medications used for ADHD over a three-month period in adults.

Participants needed: 90
Trial details
Age: 18-55Biological sex: AllType: InterventionalSponsor: Outliers, Inc.Updated: Feb 2, 2026Locations: 1
Eligibility criteria

Aged 18-55 years [+7]

Chronic conditions (e.g. cancer, mental illness) [+6]

Status: Recruiting

Modulation of the Brain Fog Scale by Eicosapentaenoic Acid Monoglycerides (MAG-EPA).

A growing body of studies shows that omega-3s act directly in molecular signaling pathways that reduce inflammation and are thought to have a positive effect on cognitive health. Brain fog is a term that has been popularized in the medical world in the wake of the COVID-19 pandemic. A significant proportion of patients with long COVID reported having cognitive sequelae that were like fogginess. It is defined as a cognitive impairment with characteristic symptoms including problems with concentration, attention and memory, confusion, difficulty understanding what others are saying, reduced mental acuity and mental fatigue. These are episodes of reduced cognitive capacity that are not representative of the person's normal state. This condition can be caused by various factors such as stress, lack of sleep, overwork, depression, hormonal changes due to pregnancy or menopause in women, head injuries, migraine, certain diseases or viral infections, certain medications as well as substance abuse (alcohol and/or street drugs). In this study, we want to test whether omega-3 monoglycerides (MAG-EPA) can modulate the cognitive health of people with brain fog.

Participants needed: 48
Trial details
Phase: Phase 4Age: 19-55Biological sex: AllType: InterventionalSponsor: Samuel FortinUpdated: Dec 11, 2025Locations: 2
Eligibility criteria

Participant between 19 and 55 years of age. [+5]

Known allergy or intolerance to fish or history of allergic reactions attributab... [+4]

Status: Recruiting

Transcranial Ultrasound Stimulation for Cognitive Function Modulation in Patients With Post COVID-19 Brain Fog

This study aims to investigate whether a specific brain region mediates the cognitive deficit in long COVID brain fog, and whether targeted modulation of this region can improve cognition. In observational study, the objective was to identify potential intervention targets for patients with long COVID brain fog. A total of 120 patients with long COVID were enrolled. Brain fog (BF) severity was quantified using the Brain Fog Assessment (BFA). Participants completed a continuous random-dot motion (cRDM) task during 128-channel electroencephalography (EEG) and underwent structural MRI and standardized neuropsychological testing. In interventional study, 40 participants with persistent BF symptoms were enrolled for transcranial ultrasound stimulation (TUS). On Day 1, participants completed the BFA and provided demographic data, then performed the baseline cRDM task; 20 minutes later, structural MRI and baseline resting-state MRI were acquired. On Day 2, participants received 60 seconds of TUS (active or sham) according to randomized allocation. Twenty minutes post-stimulation, an 8-minute resting-state MRI scan was obtained, followed immediately by the follow-up cRDM task.

Participants needed: 40
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: Xuanwu Hospital, BeijingUpdated: Sep 4, 2025Locations: 2
Eligibility criteria

Patients should have a history of COVID-19 infection (positive test results for...

1. Presence of any symptoms of cognitive impairment or other neurological sympto... [+3]

Status: Not yet recruiting

Attention, Memory and Quality of Life in Post-COVID-19 Adults

The pandemic has highlighted social, economic, educational, and political issues that have affected the health and quality of life of millions of Brazilians. Currently, attention and memory impairment remains predominant among the cognitive symptoms of Coronavirus observed in adults. The persistance of the reffered impairment after 12 weeks of COVID-19 is known as cognitive impairment in post-COVID-19 syndrome. Despite studies indicating the negative effects of COVID-19 on attention and memory, there is a gap in the literature regarding its effects on self-reflection and insight. Previous studies highlight the role of self-awareness as an essential cognitive process that aids the criation of a resolution for the social consequences of the ongoing pandemic. Thus, understanding the relationship between self-reflection, insight, memory, and quality of life in adults that presented COVID-19 could reveal how memory loss might affect the ability to evaluate and understand one's own behaviors and quality of life. Moreover, this study could provide a background for future interventions to enhance attention, memory, self-reflection, and insight in this population. In this context, quantitative electroencephalogram neurofeedback training (EEGq-NFT) is a promising non-invasive intervention designed to improve cognition, such as attention and working memory. By modifying electrophysiological patterns in the cerebral cortex. Considering the information presented, the question is what is the relationship between cognitive failures, self-reflection and insight, and quality of life in adults who had COVID-19, and what is the efficacy of EEGq-NFT training in rehabilitating attention and working memory in adults with cognitive impairment due to post-COVID-19 syndrome. This study aims to examine the relationship between cognitive failures, self-reflection, insight, and quality of life in adults post-COVID-19, as well as to assess the efficacy of EEGq-NFT in improving attention and working memory in adults with cognitive impairment due to post-COVID-19 syndrome. Method 1 will employ a survey with cross-sectional design and quantitative data analysis. A total of 385 adults will be recruted. Data will be collected through online forms. Cognitive Failures Questionnaire, Self-Reflection and Insight Scale and WHOQOL-bref scale will be used. In Method 2, a quasi-experimental with quantitative data analysis will be employed. A total of 60 participants will be randomly assigned to an EEGq neurofeedback training group (n = 20), an active control group called SHAM EEGq-neurofeedback (n = 20), and a waiting list control group (n = 20). The theta/beta ratio reduction protocol at Cz will be used, with 10 sessions of 30 minutes each. The Psychological Battery of Attention 2 (BPA-2) and Digit Span Test will be employed to measure attention and working memory levels. Statistical analyses will be performed using IBM SPSS version 25 with statistical significance set at p \< 0.05 for a 95% confidence interval. The research follows all ethical standards for studies involving human subjects and was submitted for review and approval at the Research Ethics Committee. A understanding of memory levels, self-reflection, insight, and quality of life in adults post- COVID-19 is expected as a result of the present study. Additionally, this study expects that EEGq-NFT will be effective in reducing the theta/beta ratio, as well as improving attention and working memory in adults with cognitive impairment in post-COVID-19 syndrome.

Participants needed: 60
Trial details
Age: 18-60Biological sex: AllType: InterventionalSponsor: Jade Carvalho Da SilvaUpdated: Jun 12, 2025Locations: 1
Eligibility criteria

1) Be under 18 years old and over 60 years old; 2) Discontinue participation in...