Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

52 clinical studies listed.

Filters:

Adult

Tundra lists 52 Adult 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.

RECRUITING

NCT00004577

Study of New Magnetic Resonance Imaging Methods of the Brain

The purpose of this investigation is to develop improved magnetic resonance imaging (MRI) techniques and hardware for studying brain function. MRI is a diagnostic tool that provides information about brain chemistry and physiology. This study will evaluate new MRI methods for monitoring blood flow to regions of the brain in response to simple tasks. The MRI machine used in this study is more powerful than those in most hospitals, permitting a higher visual resolution. Normal healthy volunteers over 18 years old may be eligible for this study. Candidates will be screened with a medical history and questionnaire, and a neurological examination. Study participants will have a yearly MRI scan. For this procedure, the subject lies on a stretcher that is moved into a donut-shaped machine with a strong magnetic field. A lightweight circular or rectangular coil-a device that improves the quality of the images-may be placed on the head. The scan time varies from 20 minutes to 3 hours; most scans last between 45 and 90 minutes. During the scan, the subject may perform simple tasks, such as listening to tapes, tapping a finger, moving a hand, watching a screen, or smelling a fragrance. More complex tasks may require thinking about tones or pictures and responding to them by pressing buttons. Information from this study will be used to develop better imaging methods that will, in turn, permit a greater understanding of normal and abnormal brain behaviors. ...

Gender: All

Ages: 18 Years - 120 Years

Updated: 2026-10-29

1 state

Healthy Volunteer
Magnetic Resonance Imaging
Healthy
+3
COMPLETED

NCT01175993

Effects of Rapid-Resisted Exercise and Bright Light Therapy on Ambulatory Adults With Traumatic Brain Injury

Background: * Traumatic brain injury may have a range of effects, from severe and permanent disability to more subtle functional and cognitive deficits that often go undetected during initial treatment. To improve treatments and therapies and to provide a uniform quality of care, more research is needed into different treatments for traumatic brain injury. * Exercise has been shown to improve movement and balance in people with strokes, cerebral palsy, and other conditions that affect the brain, and can improve symptoms of memory problems or depression. Bright light therapy has also been shown to improve mood in people with depression. Researchers are interested in studying problems with movement, balance, thinking, and mood in people with traumatic brain injury. By comparing the effects of exercise and bright light exposure on brain function, new treatments may be developed for acute traumatic brain injury. Objectives: \- To compare the effects of exercise and bright light therapy on the brain function of individuals with traumatic brain injury. Eligibility: \- Individuals between 18 and 44 years of age who either have been diagnosed with traumatic brain injury or are healthy volunteers. Design: * Individuals with traumatic brain injury will have four outpatient evaluation visits at the clinical center, a 3-month home exercise program, and a 3-month bright light exposure program at home. Healthy volunteers will have one evaluation visit at the clinical center. * At the first study visit, all participants will have a full physical examination and medical history. Individuals with traumatic brain injury will also have an eye exam to determine if it is safe for them to receive light therapy. * All participants will have the following initial tests: * Tests of walking and movement, including monitoring by a physical therapist; tests to record joint movement and evaluate muscle function; tests that combine movement, thinking, and speaking; and balance and reaction time tests. * Magnetic resonance imaging scans * Tests of thinking and mood, including questionnaires, computerized tests, and simple action tests. * Participants with traumatic brain injury will have separate 3-month sessions of exercise and bright light therapy, with additional evaluation visits between each 3-month session and at the end of the study. Between the 3-month sessions, participants will have 1 month with no intervention. * Exercise sessions will involve regular workouts on an elliptical machine for 30 minutes for 5 days a week, and bright light therapy sessions will involve sitting in front of a light box for 30 minutes for 5 days a week. Participants will keep a journal to monitor the effects of the therapy.

Gender: All

Ages: 18 Years - 44 Years

Updated: 2026-10-16

1 state

Adult
Traumatic Brain Injury
fMRI
RECRUITING

NCT07819097

A Study to Learn About the Safety and Immune Responses of RSVpreF in Older Adults

The purpose of this study is to learn about the safety, tolerability, and immune response of the RSVpreF vaccine in healthy older adults. Participants will take part in this study for about 6 months. The study will include people in China and the United States. In China, participants will receive either RSVpreF or placebo. A placebo is a dummy vaccine with no active ingredient, but it looks just like the vaccine being studied. In the United States, all participants will receive RSVpreF. Researchers will check for any reactions. They will also check blood test results to learn how the body responds to the vaccine. The main questions the study aims to answer are: * What local reactions and systemic events (body-wide symptoms) do participants have after a RSVpreF vaccination? * What medical problems do participants have after a RSVpreF vaccination? * Researchers will compare antibody levels from blood tests between the China cohort and the US cohort. An antibody is a substance in the body that try to fight off an infection or foreign substance. Participants will: * Have a screening visit to make sure they qualify for the study (participants in China will have this visit before the day of vaccination) * Receive the RSVpreF vaccination (or a placebo injection if in the China cohort) once at Visit 1. * Have a telephone or clinic visit 1 week later to assess local reactions and systemic events. * Have a clinic visit a month after vaccination for a checkup and tests. * Have a telephone or clinic visit 6 months after vaccination for a health check. * Have a blood test at screening (if in the China cohort only), on the day of vaccination and 1 month after vaccination.

Gender: All

Ages: 60 Years - Any

Updated: 2026-10-09

12 states

Adult
Healthy Participants
COMPLETED

NCT01031407

Cognitive Neuroscience of Autism Spectrum Disorders

Background: * Autism spectrum disorders (ASDs) are a group of developmental disorders that affect communication, social interaction, and behavior. Relatively little is known about the relationship between genetics and behavior among these individuals and their close relatives. Researchers are interested in using interviews and rating scales to better understand these issues, as well as collecting brain scan data and genetic samples for testing and comparison. * By comparing test results and genetic samples from healthy volunteers, people with ASD, and parents (or caregivers or legal guardians) of the first two groups, researchers hope to better understand the neuroscience of ASD. Objectives: * To learn more about the brain in healthy people and in people with autism spectrum disorders. * To study genes that might be involved in autism spectrum disorders by collecting DNA samples from participants. Eligibility: The following groups of participants will be eligible for the study: * Individuals between 5 and 89 years of age who have autism spectrum disorders. * Healthy volunteers between 5 and 89 years of age. * Cognitively impaired children between 5 and 17 years of age. * Parents/caregivers/legal guardians of individuals in the above three groups. Design: * Participants will visit the National Institutes of Health Clinical Center for research tests, which will be administered over multiple visits. Researchers will determine the specific tests to be administered based on the medical history of the study participant. * Researchers will study the brain through interviews, tests of thinking and memory (neuropsychological tests), brain imaging with magnetic resonance imaging (MRI), and magnetoencephalography (MEG). * The study will also collect blood or saliva to obtain a DNA sample.

Gender: All

Ages: 5 Years - 89 Years

Updated: 2026-10-08

1 state

Asperger's Disorder
Mental Retardation
Children
+2
NOT YET RECRUITING

NCT07862946

Inotuzumab as Post-Trasplantation Therapy for Adult High-risk B-cell Precursor Acute Lymphoblastic Leukemia

The goal of this clinical trial is to learn if Inotuzumab Ozogamicin works to prevent relapses after transplantation in adult high-risk B-cell precursor acute lymphoblastic leukemia treated with the PETHEMA ALL-2025 protocol. The main questions it aims to answer are: * Do patients receiving Inotuzumab ozogamicin post-transplantation suffer less relapses than those patients not receiving this therapy (control group) within the ALL-2025 protocol? * Do patients receiving Inotuzumab ozogamicin show more adverse events and severe adverse events related with this treatment than those patients no receiving this intervention (control group)? Researchers will compare the relapse rate between patients receiving Inotuzumab Ozogamicin post-transplantation and patients not receiving Inotuzumab Ozogamicin post-trasnplantation within the ALL-2025 protocol. Participants will receive 3 cycles of Inotuzumab Ozogamicin therapy. Treatment will be initiated from day +70 post-transplantation and a minimum interval of 30 days between consecutive administrations.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-07

2 states

Acute Lymphobkastic Leukemia
Adult
RECRUITING

NCT05024175

Long-term Follow-up of Subjects Treated With CAR T Cells

This is a single site, non-randomized, open-label, long-term safety and efficacy follow-up study for Phase 1 studies that evaluate the safety and efficacy of CAR T cells: NCT05660369 (HCC# 22-175), NCT06026319 (HCC# 23-474) and NCT NCT07388277 (MGB# 2025P003179.

Gender: All

Ages: 18 Years - Any

Updated: 2026-10-01

1 state

Long Term Adverse Effects
CAR-T
Duty to Follow Up
+4
NOT YET RECRUITING

NCT07457242

Probiotic Research: Open-label Functional Intervention and Longitudinal Evaluation in Healthy Adults

This study is a pre-post, open-label cohort study designed to investigate how a food-grade probiotic supplement affects biological measurements and wellbeing in healthy adults. Participants will take one capsule daily for either 1 month or 6 months. During the study, participants will complete online cognitive tasks and provide blood and stool samples collected during home visits by trained staff. The samples will be analysed to explore changes in gut bacteria and other biological markers. This study aims to understand whether the supplement is well tolerated and whether measurable biological changes occur. The study does not involve any experimental drugs or invasive procedures beyond blood sampling and stool collection, and participants will not be asked to change any current prescribed medications or treatments; with eligibility exclusions applying for recent antibiotics or immunosuppressants. The supplement is being studied for research purposes only and is not intended to diagnose, treat, or prevent disease. Participants will be invited to participate in a follow-up visit to assess long-term effects.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-21

Cognition
Multiomics
Microbiome Analysis
+8
NOT YET RECRUITING

NCT07592624

Evaluation of an Instructional Video About Medication Management During Admission and Medication Adherence for Kidney Transplantation and in the Outpatient Clinic in a Dutch University Hospital.

The goal of this RCT is to evaluate the effect of the instructional video on improving patient compliance and reducing medication errors. The study will include adult kidney transplant recipients (18 years or older) at Erasmus MC who have undergone a kidney transplantation starting January 2026. The main questions it aims to answer: The primary aim of this study is to assess whether our developed video instruction, compared with the traditional verbal instruction, both of which are given shortly before training during admission, reduces the number of medication errors in kidney transplant patients. The study will also examine the correlation between patient characteristics (such as age, comorbidities, and language proficiency) and medication errors. Additionally, patient-reported medication errors will be measured through a questionnaire completed during follow-up visits at the outpatient clinic, which is part of standard care. The instructional video will be evaluated by a short questionnaire.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-16

Kidney Transplant
Adult
Medication Adherence
+1
RECRUITING

NCT06735651

Wild Blueberries for Gut, Brain, and Cardiometabolic Health in Prediabetes

The goal of this clinical trial is to determine the effectiveness of using a freeze-dried wild blueberry powder on cardiometabolic health, cognitive function, and gut microbiota composition in adult women with prediabetes.

Gender: FEMALE

Ages: 20 Years - 65 Years

Updated: 2026-09-02

1 state

Prediabetes (Insulin Resistance, Impaired Glucose Tolerance)
Female
Adult
+9
RECRUITING

NCT06867198

Peanuts for Cardiometabolic, Brain, and Intestinal Health

The overall objective of this 14-month randomized crossover study is to seek evidence demonstrating that daily consumption of peanuts and peanut products improve cardiometabolic, cognitive, and intestinal health in a racially diverse prediabetes population.

Gender: All

Ages: 20 Years - 59 Years

Updated: 2026-09-02

1 state

Prediabetes
Prediabetes (Insulin Resistance, Impaired Glucose Tolerance)
Cognition
+5
RECRUITING

NCT06735599

Wild Blueberries for Gut, Brain, and Heart Health in Adults With High Blood Pressure

The purpose of the study is to determine the effectiveness of wild blueberries on cardiovascular health, cognitive function, and gut microbiota composition in non-Hispanic Black and White adults with elevated blood pressure.

Gender: All

Ages: 45 Years - 65 Years

Updated: 2026-09-02

1 state

Hypertension (Without Type 2 Diabetes Mellitus)
High Blood Pressure
Male
+13
COMPLETED

NCT04815434

Experience and Understanding of the Mouth, Oral Health and Function Amongst Adults With Disabilities and Complex Health Conditions.

Oral health is the one of the commonest causes of health problems in the world, with almost all individuals suffering from reduced oral health at some stage over their life span. As such, oral health is a major public health issue and a major consumer of health spending. Poor oral health results in pain, infection, structural degradation, functional restrictions in chewing, swallowing and speech, change in facial appearance, social stigma, altered body image, and reduced capacity to participate in social events, amongst others. Global problems of human functioning, disability, health and environment in turn affect oral status in many complex ways (for example, ability to maintain oral hygiene, nutritional restrictions, neuromotor incapacity, dysphagia, ability to access and cooperate with treatment, etc). Disability arises from a social environment that fails to enable everyone to access it regardless of his or her impairment. Disabilities are thus socially created and not dependent on the individual's type or location of impairment. There is currently very limited qualitative research exploring perceptions of the mouth, or oral health within a social environment, from the perspective of disabled adults. No universal, holistic, comprehensive tool exists to describe oral health, the functional impact of oral health, and the environmental factors influencing oral health within the biopsychosocial model. It has been suggested that a framework for such an instrument may be supplied by the International Classification of Functioning, Disability and Health (ICF: World Health Organisation, 2001) This research seeks to address these gaps by describing perceptions of the mouth from the perspective of adults with disabilities and complex health conditions, and by linking this qualitative data to the ICF in order to assess the feasibility of using the ICF to conceptualise oral health. Adults with disabilities and complex health conditions were chosen for this ICF core set preliminary study as existing literature suggests that these respondents would accumulate not only a high level of oral health need but also experience high impact of functioning and environment on oral health.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-07

1 state

Adult
Disability
Chronic Disease
+1
RECRUITING

NCT07678684

A Study of HF1K16 Combined With Bevacizumab in Patients With Recurrent or Progressive Glioma

The primary purpose of this Phase II study is to evaluate the preliminary anti-tumor efficacy of HF1K16 in combination with Bevacizumab in patients with recurrent or progressive glioma. The study also evaluates the safety and tolerability of the combination therapy.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-07-10

1 state

Glioma
Adult
RECRUITING

NCT06692400

The Effects of Endotracheal Suctioning on Pain and Serum Markers

The goal of this experimental study is to understand if endotracheal tube (ETT) suctioning increases pain and causes stress on the body in intubated adult ICU patients. These patients are already on ventilators, which means they need suctioning to keep their airways clear, but this procedure may be uncomfortable and cause stress. The main questions this study aims to answer are: Does ETT suctioning raise pain levels as measured by the Critical-Care Pain Observation Tool (CPOT)? Does ETT suctioning increase certain chemicals in the blood (hypoxanthine, xanthine, and uric acid) that show stress and lack of oxygen in the body? Researchers will compare patients who have ETT suctioning (intervention group) with those who do not have suctioning during the study period (control group) to see if there are differences in pain and blood markers of stress. Participants will: Have pain measured before and after suctioning using the CPOT. Have blood samples taken from an existing line at three time points: 5 minutes before, 5 minutes after, and 30 minutes after suctioning. Provide demographic information (like age, gender, and diagnosis) from medical records. This research will help improve how pain is managed for ICU patients who cannot speak for themselves, potentially leading to better pain relief methods in the future.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-10

1 state

Intensive Care Unit ICU
Intubation
Critical Illness
+12
RECRUITING

NCT07665944

Hydroponic vs Conventional Spinach Smoothies: Effects on Salivary Nitrate Bioavailability and Blood Pressure

The goal of this clinical trial is to determine whether hydroponic spinach (HS) versus conventional spinach (CS) smoothies produce differential post-consumption effects on salivary nitrate availability and blood pressure in adults. The main questions it aims to answer are: Do hydroponic spinach (HS) and conventional spinach (CS) smoothies produce differential post-consumption salivary nitrate availability responses in adults when consumed in equal volumes? Do hydroponic spinach (HS) and conventional spinach (CS) smoothies produce differential post-consumption blood pressure responses in adults when consumed in equal volumes? Participants will: Consume hydroponic spinach (HS) and conventional spinach (CS) smoothies on two separate study days. Attend two laboratory visits at the university, scheduled within a 1-2 week period. Undergo check-ups and study measurements during each visit (e.g., blood pressure and saliva sampling).

Gender: All

Ages: 18 Years - 60 Years

Updated: 2026-06-24

1 state

Adult
RECRUITING

NCT07587944

Biomarkers in Bone Marrow Supernatant for Predicting AML Chemosensitivity

Chemoresistance in acute myeloid leukemia (AML) is closely associated with the bone marrow microenvironment. Elevated levels of IL-6, leptin, fumarate, and other factors within the bone marrow microenvironment have been shown to enhance oxidative phosphorylation or antioxidant capacity in AML cells, thereby inducing chemoresistance. To explore their potential as prognostic biomarkers or therapeutic targets, this study plans to enroll 405 newly diagnosed AML patients meeting the criteria of the Chinese Guidelines for the Diagnosis and Treatment of Adult Acute Myeloid Leukemia (2023 Edition), along with 81 sex- and age-matched healthy controls. By analyzing the levels of IL-6, leptin, fumarate, and other factors in patient bone marrow supernatant, we will evaluate their associations with treatment response (primary endpoints: overall survival \[OS\] and overall response rate \[ORR\] after one cycle of chemotherapy) and prognosis. Furthermore, patient-derived xenograft (PDX) mouse models established from primary AML cells will be used to validate their roles in chemoresistance, aiming to provide a basis for therapies targeting the bone marrow microenvironment.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-14

1 state

AML
Adult
COMPLETED

NCT07582900

The Impact of Hunova® Robotic Platform Rehabilitation

A fall is defined as "a sudden, unintentional, and unexpected downward movement from a standing, sitting, or lying position". According to the World Health Organization (WHO) in 2021, falls are the second leading cause of death from unintentional injuries globally, after deaths caused by road traffic accidents, with approximately 684,000 deaths per year. Of these falls, about 80% occur in low- and middle-income settings. In addition to fatal outcomes, the WHO estimates that approximately 37 million people exposed to falls require medical care annually and that falls are responsible for increased disability and healthcare costs, as well as a reduction in remaining independence. Various risk factors, both intrinsic and extrinsic, have been identified that significantly increase an individual's risk of falling. Intrinsic risk factors include age and gender, health status, mobility and sensory impairments, and cognitive abilities. Extrinsic risk factors include environmental hazards, footwear, and assistive devices. Falls represent one of the major public health issues among the elderly population: approximately 40% of adults over the age of 65 living at home experience at least one fall per year, and of these, one in forty is hospitalized or requires medical care. Among geriatric patients admitted to assisted living facilities, the average fall rate exceeds 2.5 falls per person-year for the same age group, which is three times higher than that recorded among older adults living at home. Falls occurring in hospital or residential settings are associated with a higher risk of serious injury to the patient, prolonged recovery and hospitalization, as well as a higher risk of subsequent rehospitalization compared to those experienced by individuals living at home: fall-related injuries are the third leading cause of rehospitalization within 30 days for individuals over 65, accounting for an average of 5.1% of all readmissions; this percentage rises to 10% for patients already hospitalized due to a previous fall. Since falls are therefore not only an extremely common occurrence but also a critical indicator of vulnerability in geriatric patients discharged from the hospital, it is necessary to improve fall prevention and risk monitoring programs both in general and during the post-acute period, when older adults are particularly vulnerable. The hospital setting, therefore, exacerbates the vulnerability of older adults; guidelines recommend adopting, in such settings, a multifactorial and continuous approach that includes staff training, ongoing risk assessment for each individual patient, and the removal of environmental barriers. More recently, some authors have highlighted the need to conduct a specialized multidisciplinary and multifactorial assessment even for patients at low risk of falling or who have fallen outside a hospital or residential setting, aimed at reducing modifiable, intrinsic, and extrinsic risk factors, as well as implementing balance-enhancement programs. Since 2022, the A. Gemelli University Polyclinic Foundation IRCCS has been operating the Clinical Care Pathway (CCP) for fall prevention and active aging, dedicated to patients who wish to maintain or improve their independence in activities of daily living and social participation by addressing various aspects of balance. With this in mind, the aim of the study is to retrospectively collect data from patients who accessed the CCP for fall prevention and active aging, analyzing its effects over time.

Gender: All

Ages: 20 Years - 95 Years

Updated: 2026-05-13

1 state

Adult
TERMINATED

NCT06077903

GT101 Injection in the Treatment of Metastatic/Recurrent Advanced Solid Tumors

This study is a single center, single arm phase I clinical trial. This study proposes to enroll 20 subjects, with a trial protocol including chemotherapy pretreatment, reinfusion of autologous tumor infiltrating lymphocyte injection, and interleukin-2 injection.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-05-05

Adult
TERMINATED

NCT06094426

Autologous Tumor Infiltrating Lymphocyte Injection for the Treatment of Advanced Solid Tumors

This trial is a multicenter, single-arm, open design designed to evaluate the safety and tolerability of Autologous Tumor Infiltrating Lymphocyte Injection in the treatment of patients with advanced solid tumors, as well as pharmacokinetic profiling and efficacy. The trial consists of two phases: dose-escalation and dose-expansion.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-04-29

1 state

Solid Tumor
Adult
GT316
TERMINATED

NCT06235242

GT201 Injection in Combination With Teraplizumab Injection for Treatment of Patients With Non-small Cell Lung Cancer

This study is a single arm, open design aimed at evaluating the safety and tolerability of Autologous Tumor-Infiltrating Lymphocyte (GT201 injection ) in combination with teraplizumab injection for treatment of patients with non-small cell lung cancer,while evaluating pharmacokinetic characteristics and efficacy assessment to determine the optimal biological dose (OBD).

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-04-27

2 states

Adult
Non-small Cell Lung Cancer
TERMINATED

NCT06519669

Autologous Tumor-Infiltrating Lymphocyte Injection(GT201) for Treatment of Patients With Advanced Lung Cancer

This study is a single arm, open design aimed at evaluating the safety and tolerability of Autologous Tumor-Infiltrating Lymphocyte (GT201 injection ) for treatment of patients with Advanced lung cancer,while evaluating pharmacokinetic characteristics and efficacy assessment.

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-04-27

2 states

Adult
Lung Cancer
TERMINATED

NCT06191900

Clinical Study of GT201 in the Treatment of Advanced Gynecological Tumors (Advanced Cervical Cancer)

This study is an early exploration clinical study with one arm. The study consists of two stages, namely the dose escalation stage and the dose extension stage:

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-04-27

1 state

Adult
Gynecological Tumors
RECRUITING

NCT06241781

Autologous Tumor Infiltrating Lymphocytes (GT101 Injection) in Patients With Recurrent or Metastatic Cervical Cancer

This is a Phase II, multicenter, open-label, randomized, parallel group, treatment study to assess the efficacy and safety of Autologous Tumor Infiltrating Lymphocytes (GT101 injection) compared with Gemcitabine in participants with recurrent or metastatic cervical cancer.

Gender: FEMALE

Ages: 18 Years - 70 Years

Updated: 2026-04-15

18 states

Adult
RECRUITING

NCT06453057

Autologous Tumor-Infiltrating Lymphocyte (GT307) for Treatment of Patients With Solid Tumours

This study is a single arm, open design aimed at evaluating the safety and tolerability of Autologous Tumor-Infiltrating Lymphocyte (GT307) for treatment of patients with solid tumours,while evaluating pharmacokinetic characteristics and efficacy assessment to determine the optimal biological dose (OBD).

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-04-14

1 state

Adult