Condition
Cognitive Function clinical trials and research
As of November 12, 2026, Find a Trial lists 23 Cognitive Function clinical trials that are recruiting, at sites in 15 countries (most in United States (8), China (3), Turkey (Türkiye) (3)). By phase: Phase 4 (1). There are also 126 NIH-funded research projects on Cognitive Function, with $83.8 million in listed awards. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 23Clinical trials
- 126NIH research projects
- 15Countries
Newest Cognitive Function clinical trials
All recruiting trials (23)
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Omega-3 Fatty Acids and Red Blood Cell Membranes in Competitive Soccer Players
This study tests whether high-dose omega-3 supplements change red blood cell membranes and may affect performance and cognition in competitive male soccer players aged 16–35.
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Binaural beats for cognitive function in older adults with mild cognitive impairment in nursing homes
This study tests whether listening to 10-Hz binaural beats for 30 minutes daily for 14 days can help cognitive function in older adults with mild cognitive impairment living in nursing homes.
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Diet, Fat Quality, and How Your Body Responds to Exercise
This observation study tests whether your usual fat quality in diet and metabolic health relate to how you feel during and after exercise, plus your cognitive function and school-related engagement.
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Foot arch shape and its link to walking speed, gait timing, and leg reaction time in older adults
See if foot arch shape relates to walking speed, gait timing, and leg reaction time in people aged 65 and older.
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Safety and how AP-Brain affects thinking in healthy young adults with self-reported attention problems
This study tests whether AP-Brain at 1g, 3g, or 5g can improve cognitive function compared with placebo in healthy adults aged 18–39 who report attention problems.
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Home-based inspiratory muscle training to lower dementia risk in older adults
This study will test whether an 8-week, daily home inspiratory breathing program can lower blood pressure and improve thinking, mood, and sleep in adults aged 60–80 who have risk factors for dementia.
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B-vitamins plus omega-3s to reduce brain atrophy markers
We will test whether taking B‑vitamins together with a highly absorbable omega‑3 supplement lowers a blood marker of brain atrophy in adults over 65 who have low B‑vitamin status.
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Plant versus animal protein supplements to improve brain blood flow, insulin response, thinking, and appetite in older adults
This tests whether two weeks of a daily plant or animal protein supplement can improve brain blood flow, brain insulin response, thinking, and appetite control in overweight or obese adults aged 60–75.
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Phospholipid-rich dairy extract for mild memory problems
This will test whether taking a daily phospholipid-rich dairy milk extract for 12 weeks helps adults aged 55–85 with mild cognitive impairment think and remember better and whether it is safe.
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Daily spice consumption and its effects on memory function
This study is testing whether taking a daily spice capsule can help improve memory in older adults with mild cognitive decline.
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Muscle loss in pregnant women with gestational diabetes.
This project will test whether pregnant women with gestational diabetes show signs of muscle loss (sarcopenia) and whether those muscle measures relate to pregnancy outcomes and thinking skills.
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Exploring how sleep quality affects self-care in heart failure patients
This study looks at how the quality of sleep affects self-care habits in people with heart failure over six months.
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Dose effects of CitraPeak (glucosyl‑hesperidin) on exercise, blood flow, stress, and thinking
This test tries daily CitraPeak (glucosyl‑hesperidin) at two doses to see if it helps healthy, recreationally active adults (18–50) improve exercise performance, recovery, blood flow, mood, and cognition.
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Examining motor imagery and cognitive functions in people with Type 2 Diabetes
This study tests how well people with Type 2 Diabetes can imagine movements and how that relates to their thinking skills and body awareness.
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Exploring mental health and psychosomatic factors from childhood to adulthood
This study looks at how childhood experiences can impact mental and physical health as people grow up, involving students, parents, and teachers from different schools in China.
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Virtual reality exercise program for women veterans
This study is testing a new virtual reality exercise program to see if it can help women veterans improve their physical and mental health over eight weeks.
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Effects of brain stimulation on cognitive task performance
This study tests if a type of brain stimulation can help improve attention, learning, and memory in people while they do thinking tasks.
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Registration of patients with narrowing of brain or neck arteries
This study is looking to see how narrowing in brain or neck arteries affects thinking and memory in people aged 40 and older.
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Exploring the links between sleep hygiene, muscle loss, and brain function in lung disease
This study looks at how good or bad sleep affects muscle loss and brain function in people with lung diseases like COPD and IPF.
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Comparing high-intensity and moderate-intensity exercise during pregnancy and its effects on health and birth outcomes
This study tests whether high-intensity or moderate-intensity exercise during pregnancy can improve health and birth outcomes for moms and their babies.
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Investigating brain activity in epilepsy patients using implanted electrodes
This study is testing how brain activity in patients with hard-to-treat epilepsy can help us understand their seizures and how it affects their thinking and sleep.
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Effects of Gadolinium-based Contrast Media on Movement and Mental Skills
This study is testing how repeated use of gadolinium-based contrast agents during imaging tests affects movement and thinking skills in healthy adults.
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Investigating brain health in breast cancer survivors undergoing hormone therapy
This study is trying to see how hormone therapy affects brain function in breast cancer survivors, especially looking at how menopause plays a role.
NIH-funded research (newest 40 of 126)
Early-stage science funded by the US National Institutes of Health. Most of these projects don't enroll patients, but they show what is being worked on.
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How specific anti-NMDAR1 antibodies in the blood may affect memory and brain protection
This research is exploring whether natural or abnormal anti-NMDAR1 antibodies in the blood influence memory, behavior, and brain protection in humans.
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Mexican Teachers Cohort Study: Genetics and Cognitive Function
A large study using genetic data from Mexican teachers to discover genetic factors linked to memory and thinking in older adults.
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Genetics and Cognitive Function in Mexican Teachers Cohort for Alzheimer’s Dementia
This grant funds a large study to find genetic factors linked to memory and thinking in Mexican teachers, with the goal of improving understanding of Alzheimer’s-related dementia.
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How childhood nutrition affects health, thinking, and life outcomes by middle age
This project compares people who got extra nutrition as children with those who did not to understand differences in health, thinking, and life outcomes in middle age.
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How the brain receptor mGlu1 affects thinking after teen cocaine exposure
This project looks at whether boosting mGlu1 receptor activity can restore brain inhibition and improve memory and flexible thinking after cocaine use during the teen years.
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Canagliflozin to protect the aging brain and improve cognition in Alzheimer’s disease
Aging is linked to Alzheimer’s and this project tests whether the diabetes drug canagliflozin can help brain function and reduce inflammation in older adults with or at risk for Alzheimer’s/dementia.
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Aortic stiffness and brain health: how arterial pulses affect dementia risk
This project looks at whether stiffer arteries and pulsing blood flow are linked to brain small vessel damage and changes in thinking in middle-aged adults.
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Mitochondrial Calcium Sensing in Aging and Memory with TUSC2
A small mitochondrial protein called TUSC2 may help protect brain cells from aging-related cognitive decline by keeping mitochondria functioning properly.
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Childhood Trauma and Aging: How Early Stress Shapes Midlife Health
This project looks at how childhood abuse and stress may speed up aging in the body and affect thinking skills by midlife, using data from a large national study.
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Precision brain stimulation to restore thinking and memory across multiple conditions
A wide-range study uses targeted brain stimulation to improve memory and thinking in models of Alzheimer’s, autism, and related disorders.
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Sex differences in high blood pressure, thinking skills, and kidney function tied to B cells and autoantibodies
This research looks at how sex and pregnancy-related antibodies may influence high blood pressure, thinking abilities, and kidney blood flow in adults.
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Genetics and Cognitive Function in Mexican Teachers Cohort
A large study will add genetic and brain-health data from Mexican teachers to enhance understanding of how genes influence memory and thinking as people age.
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Nosocomial pneumonias and cognitive function in ICU survivors
In ICU survivors, this project looks at how pneumonia acquired in the hospital may be linked to long-term thinking and memory problems.
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Understanding how daily activity patterns affect memory and dementia risk
This project looks at how a full day of activities – including sleep, light and moderate exercise, and sitting time – might influence thinking skills and the chance of developing Alzheimer’s disease or related dementias.
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Cognitive Function and Dementia in South Africa: A Longitudinal Study
A long-term study in South Africa aims to understand how dementia develops and affects people as they age, using harmonized surveys and biomarkers so findings can help people in similar settings.
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How stress, body wear, and neighborhoods affect thinking in midlife and older adults
This project looks at how chronic stress and neighborhood conditions may influence thinking skills over time in adults aged 50 and up.
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Thinking skills and self-care after a liver transplant
This project follows people who received liver transplants to learn how changes in thinking and memory affect managing medicines, clinic visits, and overall health.
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Aging fat cells and their impact on memory and Alzheimer's disease
Researchers are looking at whether aged, harmful cells in body fat send signals that damage the brain and speed memory loss in people at risk for Alzheimer's.
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Tip60 histone acetyltransferase and brain health in Alzheimer’s disease
This NIH grant explores how a brain enzyme called Tip60 helps protect memory and cognitive function in Alzheimer-like conditions using a fruit fly model and neural studies.
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Mexican Teachers Cohort — genes and memory in older adults
This project uses DNA and thinking-test information from mostly older Mexican women to find genes linked to memory and dementia.
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Genetics and memory in Mexican teachers
This project looks at how genes relate to memory and thinking in older Mexican teachers by adding their genetic data to a large Alzheimer's research effort.
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Protective and Risk Factors for Cognitive Function in the Menopause Transition
This grant explores how lifestyle, sleep, and cardiometabolic factors affect thinking and memory during menopause to help women maintain cognitive health.
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Helping people with heart failure and mild thinking problems manage their care through mindfulness and body-awareness
This project teaches mindfulness and attention skills to help people with heart failure and mild thinking problems notice symptoms and follow medicines and lifestyle advice more reliably.
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SARS-CoV-2, APOE, and dementia: how COVID-19 affects thinking in aging and Alzheimer’s
This NIH grant explores how COVID-19 may impact brain function and pathology in people with aging or Alzheimer's disease, including how APOE genes might influence the effects.
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Oxytocin Treatment and Thinking Skills in Fragile X
This work explores if early oxytocin treatment can improve memory and thinking skills in a model of Fragile X Syndrome, which is related to autism.
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Astrocyte RNA degradation and its link to thinking and memory
Researchers are studying how a brain cell support system called astrocytes affects memory and thinking by controlling mRNA stability through a process called NMD.
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Health literacy and cognitive function in midlife adults
A study in adults aged 35–64 will look at how health literacy and self-management relate to early changes in thinking and memory to help prevent Alzheimer’s and related dementias.
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Remotely delivered brain stimulation to help cognition in Veterans with mTBI and PTSD
A non-invasive brain stimulation treatment used at home aims to improve thinking skills for Veterans who have had mild brain injuries and PTSD.
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Understanding how sleep problems in older couples relate to thinking skills and Alzheimer's risk
This project looks at how insomnia in older couples may influence memory and thinking over time, with the goal of better understanding Alzheimer’s disease progression.
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High-Intensity Exercise to Protect Cognition and Build Exercise Habits in Older Adults Living with HIV
A funded program tests whether 4 months of HIIT can help older people with HIV improve cognitive function and stick with regular exercise better than standard moderate exercise.
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Gpld1, a blood protein that may boost brain regeneration and memory in aging
This project checks if raising levels of a blood protein called Gpld1 can improve brain cell renewal and memory in older adults and people with Alzheimer's-type dementia.
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Hippocampal neurogenesis and its link to memory in Alzheimer’s disease
This study investigates whether new brain cells form in the hippocampus of people with Alzheimer’s and how this may relate to memory and cognitive decline.
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How air quality and neighborhood design affect thinking and social connection in rural older adults
This project uses wearables and daily surveys to look at whether air pollution, local neighborhood features, and social isolation affect thinking and memory in middle-aged and older rural adults.
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How couples' sleep and daily routines affect memory and Alzheimer's risk
This project explores whether shared sleep patterns and daily routines between older adults with mild cognitive problems and their partners influence memory and future Alzheimer's risk.
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Personalized diets based on gut microbes to help prevent Alzheimer's
Seeing if tailoring healthy diets to a person's gut microbes can help protect thinking and memory in older adults at risk for Alzheimer's.
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How childhood nutrition shapes health, thinking, and economic life into middle age
Researchers are following people who took part in a childhood nutrition program to learn how that nutrition links to health, thinking, and income in middle age.
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Adaptive computerized test for memory, thinking, and attention
This project builds a short, computer-based test for adults that measures memory, language, attention, processing speed, and reasoning to help spot early changes in thinking.
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Clearing toxic tau by boosting mitochondrial cleanup to protect memory and brain connections
This project boosts a natural mitochondrial cleanup protein called PINK1 to try to remove toxic tau and protect memory and brain connections for people with Alzheimer’s.
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Understanding COVID-19's Effects on Brain Health in Aging and Alzheimer's Disease
This project looks at how COVID-19 affects thinking and brain health over time, especially in older adults and those with a gene linked to Alzheimer's.
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Sleep brain-wave tracking for overnight brain changes and morning thinking
Researchers are using nighttime brain-wave recordings to see how night-to-night changes and things like sleep loss, shiftwork, or caffeine affect morning thinking in adults.
Related topics
Quick answers
How many Cognitive Function clinical trials are recruiting right now?
23, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 15 countries. The most sites are in United States (8 trials), China (3 trials), Turkey (Türkiye) (3 trials), Italy (2 trials), Canada (2 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.