Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

9 clinical studies listed.

Filters:

Brain Health

Tundra lists 9 Brain Health clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.

NOT YET RECRUITING

NCT07752225

Long-term Effects of Avocado Consumption on Health in Pre-diabetic Individuals

Primary aim of the study is to assess the effect of 12-week daily avocado consumption on cerebral blood flow and markers of cardio- and vascular health in both, the periphery and the brain, in pre-diabetic individuals with overweight or obesity. Secondary objective is to assess the effects of 12-week daily avocado consumption on brain insulin sensitivity after intranasal insulin delivery, vascular function, markers of metabolic health, cognition, and psychological well-being. For that purpose a total of 34 men and women between the ages of 40-75 years old, will participate in a randomised crossover intervention study.

Gender: All

Ages: 40 Years - 75 Years

Updated: 2026-08-27

1 state

Prediabetes
Brain Insulin Sensitivity
Cerebral Blood Flow
+5
COMPLETED

NCT05912556

Brain Response to an Intervention Using Guided, At-Home Technology for the Mind

The objective of this study is to assess the effectiveness of two digital programs for providing mental stimulation, improving cognition, and inducing changes in brain structure and function.

Gender: All

Ages: 25 Years - 80 Years

Updated: 2026-07-30

1 state

Cognition
Brain Health
Brain Structure
+1
NOT YET RECRUITING

NCT07721038

A Prospective Clinical Study Observed the Effects of Tubeless Anesthesia Method That Preserves Spontaneous Breathing and the Double-lumen Bronchial Intubation on the Brain Health During the Perioperative Period

This project conducts a prospective cohort study. By using multiple questionnaire survey methods such as the Pittsburgh Sleep Quality Index (PSQI) electronic wristband, QOR15, Pain Catastrophizing Scale (PCS), European Five-Dimensional Health Scale (EQ-5D), Revised American Pain Society Patient Follow-up Questionnaire (APS-POQ-R), Mini-Mental State Examination (MMSE), as well as perioperative stress and related indicators, hypothalamic-pituitary-adrenal axis (HPA) endocrine indicators, sublingual microcirculation, electroencephalogram, etc., comprehensive assessment is made of the correlations between the two different anesthesia methods of Tubeless retention of spontaneous breathing and double-lumen bronchial intubation and postoperative sleep, chronic pain and cognitive function, to construct a perioperative brain health safety system to improve prognosis; at the same time, optimize the perioperative sedation and analgesia plan and promote the postoperative brain health recovery of patients.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-22

1 state

Brain Health
RECRUITING

NCT07711990

Effects of Acute Ketone Supplementation on the Brain

The purpose of this study is to determine how a ketone ester supplement affects brain function, brain blood flow, and brain metabolism in healthy middle-aged and older adults. Ketones are naturally produced by the body during periods of fasting or carbohydrate restriction and serve as an alternative fuel source for the brain. Researchers are interested in whether increasing blood ketone levels through supplementation can alter brain activity and blood flow in ways that may support healthy brain function. Participants will consume a ketone ester supplement and a placebo in separate study visits. Brain imaging, blood measurements, and cognitive testing will be used to evaluate the effects of each intervention. Findings from this study will help researchers better understand how ketones influence the healthy aging brain and may provide preliminary data for future studies in populations at risk for cognitive decline.

Gender: All

Ages: 45 Years - 65 Years

Updated: 2026-07-17

1 state

Brain Health
RECRUITING

NCT07457138

Lombard Cohort of Brain Health Services

The goal of this multicenter prospective observational cohort study is to better understand the clinical, neuropsychological, and biological characteristics of individuals attending Brain Health Services (BHS) in the Lombardy region. The study focuses on adults with subjective cognitive decline (SCD), functional cognitive disorder (FCD), or "well worried" individuals without objective cognitive impairment. The main questions it aims to answer are: * What clinical, cognitive, and biological differences exist between individuals who are positive versus negative for Alzheimer's disease (AD) plasma biomarkers (p-tau217) at baseline? * What factors predict positivity to AD biomarkers at baseline? * How does communication of biomarker results (risk disclosure) affect psychological well-being shortly after receiving results? * What factors predict longitudinal changes in AD biomarkers over 5 years? * Do baseline biomarkers predict the development of mild cognitive impairment (MCI) or dementia during follow-up? Participants will: * Undergo standard clinical evaluation at their local BHS * Provide blood samples for plasma biomarker analysis (e.g., p-tau217, GFAP, NfL, ApoE) * Undergo neuropsychological testing and cognitive screening * Complete questionnaires assessing psychological impact and risk perception (before and after biomarker disclosure) * Undergo additional center-specific procedures when clinically indicated (e.g., MRI, lumbar puncture, polysomnography) * Be followed annually for 5 years The study plans to enroll approximately 1000 participants across multiple BHS in Lombardy and will follow them for a total duration of 7 years. The results will help clarify the role of biomarkers in early cognitive complaints and support the development of preventive strategies within BHS.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-17

1 state

Subjective Cognitive Decline (SCD)
Functional Cognitive Disorder
Alzheimer's Disease
+1
RECRUITING

NCT07466290

L-serine and Strength Training in the Elderly

This study investigates whether taking the amino acid L-serine, either alone or in combination with targeted strength training, can have a positive effect on mental performance, brain function, and physical fitness in older people. Healthy, independent women and men aged 65 to 85 are eligible to participate. Participants will be randomly assigned to one of three groups: placebo, L-serine, or L-serine combined with strength training. Cognitive tests, physical performance tests, and blood and brain tests will be conducted over a period of 48 weeks. The aim is to gain a better understanding of how nutrition and exercise can contribute to healthy aging.

Gender: All

Ages: 65 Years - 85 Years

Updated: 2026-03-12

1 state

Brain Health
Longevity
Cognitive Performance
+6
NOT YET RECRUITING

NCT06968728

Sleep, Glucose, and Brain Health in Obesity and Overweight Individuals

The primary aim of the NNF study is to investigate both cross-sectional and longitudinal associations between sleep patterns-measured over two consecutive weeks at baseline and again one year later-and indicators of glycemic control and brain health in a cohort of middle-aged adults. Through this effort, the investigators hope to identify potential sleep-related biomarkers and behavioral targets for early intervention to support metabolic and cognitive health.

Gender: All

Ages: 40 Years - 65 Years

Updated: 2025-05-18

Obesity and Overweight
Type 2 Diabetes
Sleep
+1
NOT YET RECRUITING

NCT06874387

Investigating the Combined Effects of Intermittent Hypoxia and Exercise on Cognitive and Cerebral Function in Middle-Aged Adults

This study investigates whether intermittent hypoxia (IH) and physical activity (PA), either alone or in combination (simultaneously or sequentially), can improve cognitive function and brain health in middle-aged adults (50-65 years old). The hypothesis is that (1) each intervention alone (IHT or PA) provides cognitive benefits and (2) combining IHT with PA may yield additive or synergistic effects, particularly when administered simultaneously rather than sequentially. By comparing these distinct interventions, the study aims to determine which approach best preserves or enhances cognitive performance in middle-aged adults. Findings from this research may inform non-pharmacological strategies to promote healthy aging and reduce the risk of age-related cognitive decline.

Gender: All

Ages: 50 Years - 65 Years

Updated: 2025-03-13

Cognitive Ability, General
Brain Health
Cerebral Oxygenation
RECRUITING

NCT06683248

The Effects of Night Shift Work on Health Across the Menstrual Cycle

The study aims to investigate the effects of sleep deprivation on women's health across different phases of the menstrual cycle.

Gender: FEMALE

Ages: 18 Years - 35 Years

Updated: 2024-11-14

1 state

Sleep Deprivation
Menstrual Cycle
Brain Health
+3