22,334 matching studies

Sponsor Condition of Interest
National Ophthalmic Genotyping and Phenotyping Network (eyeGENE (Registered Trademark)), Stage 3 -1
National Eye Institute (NEI) Inherited Ophthalmic Diseases Hypopigmentation Disorder Corneal Dystrophy Blue-cone Monochromacy Best Disease
Background: The eyeGENE (Registered Trademark) program is a research resource for inherited eye conditions which includes genotypic and phenotypic data, imaging, and a corresponding biobank of DNA samples from people with a variety of eye diseases. Since 2007 this registry has been helping researc1 expand

Background: The eyeGENE (Registered Trademark) program is a research resource for inherited eye conditions which includes genotypic and phenotypic data, imaging, and a corresponding biobank of DNA samples from people with a variety of eye diseases. Since 2007 this registry has been helping researchers learn more about the genetic sources for many inherited eye diseases. These findings helped them create better treatments. Now researchers want to expand eyeGENE (Registered Trademark) to include more people for certain eye diseases. Objective: To collect information and DNA samples for the study of eye diseases. - Primary objective --To expand the current eyeGENE (Registered Trademark) data repository with targeted participant accrual - Secondary objectives - To enhance recruitment for clinical trials and investigations in inherited eye diseases - To establish genotype-phenotype correlations for rare eye diseases Eligibility: People of any age with certain eye diseases. These can include aniridia; Best disease; blue-cone monochromacy; corneal dystrophy; and disorders of pigmentation, such as albinism. Relatives unaffected by the eye disease of interest may also be needed. Design: Researchers will select participants based on their diagnosis. The data may include images and test results from eye exams. Participants will provide a sample of saliva. They will receive a kit with written instructions. They will spit in a tube and mail it to the NIH. Participants may be asked to provide a blood sample. The blood may be drawn at the NIH or at a local clinic. The eyeGENE (Registered Trademark) repository will offer researchers data about the participants eye conditions. The data may include pictures of their eyes, results of the genetic testing, and history of other diseases. Researchers will be able to see data such as age and gender, but they will not see names, dates of birth, or contact information.

Type: Observational

Start Date: Jul 2024

open study

Deep Brain Stimulation Therapy in Movement Disorders
National Institute of Neurological Disorders and Stroke (NINDS) Parkinson's Disease
Background: - In deep brain stimulation (DBS), a device called a neurostimulator is placed in the chest. It is attached to wires in parts of the brain that affect movement. DBS might help people with movement disorders like Parkinson s disease (PD), dystonia, and essential tremor (ET). Objective:1 expand

Background: - In deep brain stimulation (DBS), a device called a neurostimulator is placed in the chest. It is attached to wires in parts of the brain that affect movement. DBS might help people with movement disorders like Parkinson s disease (PD), dystonia, and essential tremor (ET). Objective: - To provide DBS treatment to people with some movement disorders. Eligibility: - Adults 18 years and older with PD, ET, or certain forms of dystonia. Design: - Participants will be screened with medical history and physical exam. They will have blood and urine tests and: - MRI brain scan. The participant will lie on a table that slides in and out of a metal cylinder with a magnetic field. They will be in the scanner about 60 minutes. They will get earplugs for the loud noises. During part of the MRI, a needle will guide a thin plastic tube into an arm vein and a dye will be injected. - Electrocardiogram. Metal disks or sticky pads will be placed on the chest, arms, and legs. They record heart activity. - Chest X-ray. - Tests of memory, attention, concentration, thinking, and movement. - Eligible participants will have DBS surgery. The surgery and hospital care afterward are NOT part of this protocol. - Study doctors will see participants 3 4 weeks after surgery to turn on the neurostimulator. - Participants will return every month for 3 months, then every 3 months during the first year, and every 6 months during the second year. Each time, participants will be examined and answer questions. DBS placement will be evaluated with MRI. The neurostimulator will be programmed. At two visits, participants will have tests of movements, thinking, and memory....

Type: Interventional

Start Date: Apr 2014

open study

Investigation of Blood-Brain-Barrier Breakdown Using Manganese Magnetic Resonance Imaging in Drug-R1
National Institute of Neurological Disorders and Stroke (NINDS) Epilepsy
Background: - The blood-brain barrier separates the brain from the rest of the body. Epilepsy is a neurological disease that causes seizures. It can affect this barrier. Researchers think a contrast agent called mangafodipir might be better able to show areas of the brain that epilepsy affects. O1 expand

Background: - The blood-brain barrier separates the brain from the rest of the body. Epilepsy is a neurological disease that causes seizures. It can affect this barrier. Researchers think a contrast agent called mangafodipir might be better able to show areas of the brain that epilepsy affects. Objective: - To see if mangafodipir is well tolerated and safe. To see if magnetic resonance imaging (MRI) using either mangafodipir or gadolinium can show areas of blood-brain barrier breakdown in people with epilepsy. Eligibility: - People ages 18-60 who: - Have epilepsy not controlled by drugs - Prior or concurrent enrollment in 18-N-0066 is required Design: - Participants will be screened with: - Medical history - Physical exam - Blood and urine tests - Participants will have up to 6 visits in 1-3 months. One visit is an inpatient stay lasting 2-10 days. Visits may include: - Video-EEG monitoring for participants with epilepsy - An IV catheter put in place: a needle guides a thin plastic tube into an arm vein. - Getting mangafodipir through the IV. - Getting gadolinium through the IV. - Up to 6 MRI scans over a 10-day period: a magnetic field and radio waves take pictures of the brain. Participants lie on a table that slides into a metal cylinder. They are in the cylinder for 45-90 minutes, lying still for up to 10 minutes at a time. The scanner makes loud knocking sounds. Participants will get earplugs. - A final MRI at least 2 weeks after receiving mangafodipir....

Type: Interventional

Start Date: Nov 2024

open study

Magnetic Resonance Imaging (MRI) to Evaluate Activity of Multiple Sclerosis (MS)
National Institute of Neurological Disorders and Stroke (NINDS) Multiple Sclerosis
Studies performed under 89-N-0045 are designed to examine the natural history of multiple sclerosis (MS) using MRI and immunological measures. In addition to studying the natural history of untreated patients, the natural history of patients receiving approved disease-modifying therapies of MS will1 expand

Studies performed under 89-N-0045 are designed to examine the natural history of multiple sclerosis (MS) using MRI and immunological measures. In addition to studying the natural history of untreated patients, the natural history of patients receiving approved disease-modifying therapies of MS will be examined. In both cohorts of patients levels of disease activity on MRI will be compared with immunological characteristics in order to help identify disease mechanism. Patients with either definite MS (based either on clinical or combined clinical and MRI criteria) or with an initial presentation of neurological dysfunction consistent with MS will be studied longitudinally by MRI. Disease activity on MRI will be assessed using several MRI measures of disease activity including the number of contrast enhancing lesions, the overall burden of disease, brain atrophy and measures to assess axonal damage. Patients will be assessed clinically and correlations between immunological and genetic factors and disease activity as seen clinically or by MRI will be studied. A second cohort of patients starting the use of approved therapy will also be examined. Patients referred to NIH prior to beginning approved therapy will be assessed with a series of three monthly MRIs to determine the level of pretreatment disease activity. After beginning approved therapy under the direction of their private physician, patients will be followed similarly to the natural history cohort. Immunological and genetic findings will be accessed before and during therapy in order to help establish the mechanisms of action of the therapies and to identify mechanisms accounting for either a response or lack of response to therapy. Part of the collected samples willl be cryopreserved to provide respository for further studies focusing on detection of biomarkers indicative of disease state, disease stage or repsonse to therapies. Additionally, a cohort of normal volunteers will be studied. The studies in the normal volunteers will be used to establish the most appropriate imaging sequences for studying normal white matter in MS patients using magnetization transfer (MT) imaging sequences for studying normal white matter in MS patients using magnetization transfer (MT) imaging and to provide normative immunological measures.

Type: Observational

Start Date: Jul 1992

open study

NCI Childhood Cancer Data Initiative (CCDI) Led Pediatric, Adolescent, and Young Adult Rare Cancer1
National Cancer Institute (NCI) Very Rare Tumors Very Rare Cancers Other Solid Tumors Solid Tumor Pediatric Rare Tumors
Background: All childhood cancers are rare, but some are called very rare. Very rare cancers are diagnosed in 2 or fewer out of 1 million people each year. Researchers want to gather data so they can learn more about these very rare cancers. They hope to use the data to develop future treatments.1 expand

Background: All childhood cancers are rare, but some are called very rare. Very rare cancers are diagnosed in 2 or fewer out of 1 million people each year. Researchers want to gather data so they can learn more about these very rare cancers. They hope to use the data to develop future treatments. Objective: To gather data for a registry of very rare cancers found in children, teens, and young adults. Eligibility: People aged 1 month to 39 years newly diagnosed (within the past year) with a very rare cancer. Design: Participation will be by phone or email. No clinic visits are required. Researchers will look at the participant s medical records. They will ask for samples of tumor tissue that were already removed. They will use the samples for genetic testing. The results of these tests will be sent to the participant s own doctors. Some participants will be asked for saliva or cheek swab samples. They will receive a kit in the mail. They will spit into a tube or swab the inside of their cheek. They will mail the sample back to the lab. Participants will fill out questionnaires once a year for 5 years. They will answer questions about: Family history, such as other cancers in the family and their income, work, and education. Demographics, such as their gender, nationality, ethnicity, education, and work history. Symptoms and treatment for their cancer. This may include level of pain, and emotional and physical well-being. Participants data will be added to a secure database for other researchers. Their data will be anonymous.

Type: Observational

Start Date: Jun 2026

open study

Neoadjuvant Inhaled Azacytidine With Platinum-Based Chemotherapy and Durvalumab (MEDI4736) - a Comb1
National Cancer Institute (NCI) Non-small Cell Lung Cancer (NSCLC) Carcinoma, Non-Small Cell Lung Non-Small Cell Lung Carcinoma Non Small Cell Lung Cancer Non Small Cell Lung Carcinoma
Background: Lung cancer is the leading cause of cancer-related death worldwide. Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. Surgery to remove the tumors is the standard treatment for people diagnosed with early stages of NSCLC. Despite complete removal of these tumor1 expand

Background: Lung cancer is the leading cause of cancer-related death worldwide. Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. Surgery to remove the tumors is the standard treatment for people diagnosed with early stages of NSCLC. Despite complete removal of these tumors, many recur (happen again). An FDA-approved drug combination to treat early-stage NSCLC prior to the surgery is durvalumab plus standard chemotherapy. The FDA approved infusion drug azacytidine [AZA] is used to treat several diseases because it can rapidly kill dividing cells (including cancer cells) but it is not approved for NSCLC. An inhaled (aerosolized) form of AZA is also not approved for NSCLC. However, researchers want to know if an inhaled version of AZA can help improve treatment of people with NSCLC because inhaled AZA goes directly into the lungs with limited absorption into the bloodstream. Objective: To find the safest and most effective dose of inhaled AZA in participants with early-stage non-small cell lung cancer (NSCLC) that can still be removed by surgery. Eligibility: Adults aged 18 and older with operable early-stage NSCLC. Participants will be required to also enroll in NIH protocol 06C0014 which allows for pre- and post-treatment biopsies and bloodwork to be obtained for additional research studies. Design: Participants will be screened. They will have a physical exam with blood tests. Their medical records will be reviewed. They will have imaging scans and tests of their heart and lung functions. Participants will be required to have a tissue sample (biopsy) taken of their tumor prior to receiving study drug and again during surgery after Cycle 3; airway tissue biopsies and collection of collect bronchial (lung) fluid may also be done. Participants will receive the study treatment for 3 cycles. Each cycle is 21 days. They will need to come to the NIH Clinical Center (CC) on days 1-4 of Cycles 1-3. AZA will be given as a drug mist that can be inhaled (like the type of mist in an asthma inhaler) using a nebulizer at the NIH Clinical Center (CC) for 3 days in a row (consecutive days) during the first week of each cycle. The participant will inhale the AZA drug mist for 20 to 30 minutes each time. Participants will also receive durvalumab and a specific 2-drug assigned chemotherapy by intravenous (IV) infusion on day 4 of each cycle. Participants will have a follow-up visit 2 weeks after their last dose of study drugs. Then they will have planned surgery to remove the tumors. Participants will have additional follow-up visits at the NIH CC about 1 and 3 months after the surgery, and then for every 3 months for up to 3 years.

Type: Interventional

Start Date: Jun 2026

open study

Biorepository in Participants Who Undergo OTC for Gonadotoxic Therapy
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Acute Ovarian Failure Infertility Early Menopause And Infertility In Females After Treatment For Childhood Cancer
Background: Medical advances have improved survival rates for many cancers and other illnesses. This means that more people are coping with the long-term effects of these treatments. Some treatments can cause female infertility. Ovarian tissue cryopreservation (OTC) may help. Before undergoing a t1 expand

Background: Medical advances have improved survival rates for many cancers and other illnesses. This means that more people are coping with the long-term effects of these treatments. Some treatments can cause female infertility. Ovarian tissue cryopreservation (OTC) may help. Before undergoing a treatment that may damage their fertility, patients may opt to freeze a sample of ovarian tissue. The tissue contains immature egg cells. When thawed, the tissue can be reimplanted. This procedure can help women become pregnant. Objective: This natural history study will create a databank of ovarian tissue. The NIH will provide OTC as a clinical service. The NIH will also request a portion of the tissue to use for research. Eligibility: Females aged 4 to 35 who opt to have OTC before receiving cancer treatment. Design: Participants will be screened. Their existing medical records will be reviewed. They will be asked if they want to donate a portion of their ovarian tissue for research. No more than 20% of the tissue collected will be taken for research. Some other tissues that would otherwise be discarded will also be kept. Medical data from each participant may also be collected and stored in the database. This data may include results of routine blood tests, imaging tests, and other information. The data will be coded for privacy. Participants will answer a questionnaire. They will be asked about their fertility treatment and general health. The survey takes about 30 minutes. They will repeat the questionnaire once a year for 30 years. ...

Type: Observational

Start Date: Jul 2022

open study

Pathological Basis of MRI Signal Changes in Multiple Sclerosis
National Institute of Neurological Disorders and Stroke (NINDS) Multiple Sclerosis
Background: Multiple sclerosis (MS) is a disease that damages the central nervous system (brain and spinal cord). This leads to increased physical disability over time. The disease is lifelong once it begins. Researchers want to learn more about MS s stages and follow them until a person s death.1 expand

Background: Multiple sclerosis (MS) is a disease that damages the central nervous system (brain and spinal cord). This leads to increased physical disability over time. The disease is lifelong once it begins. Researchers want to learn more about MS s stages and follow them until a person s death. Objective: To understand how the physical and clinical signs of MS relate to its changes over time. Eligibility: Adults age 18 or older with MS or a disease of the brain and spinal cord that may act like MS. Design: Participants will have a medical history and a complete neurological exam. They may have timed tests of neurological function, such as a 25-foot walk and a 9-hole peg test. Participants will have multi-day visits about once a year. Participants will have blood drawn. Participants may have a brain magnetic resonance imaging (MRI) scan. They may also have an MRI of the spinal cord. They may get a contrast agent (dye) injected into a tube in an arm vein. During the MRI, participants will lie on a table that slides in and out of a metal cylinder. Participants will have the thickness of their retina measured using optical coherence tomography. A camera on top of a table uses lasers. Participants will look through a lens and follow instructions. Eye drops may be used to dilate the pupils. Participants will chew on a piece of sterile cotton for 1 minute to collect saliva. Participants agree to have an autopsy at the time of their death and to donate some of their organs to research, such as the brain and spinal cord.

Type: Observational

Start Date: Apr 2016

open study

Evaluation of Cell Changes in Blood and Tissue in Cancers of the Lung, Esophagus and Lung Lining
National Cancer Institute (NCI) Malignant Pleural Mesotheliomas NOS Esophageal Cancers NOS Lung Cancer NOS Thoracic Cancers Cancers of Non Thoracic Origin With Metastases to the Lungs or Pleura
Background: - Chromatin is is the structural building block of a chromosome. It is found inside the nucleus of the cell and consists of a complex of DNA and protein. - Cancers of the lung, pleura (lung lining) and esophagus show profound changes in chromatin structure that may aff1 expand

Background: - Chromatin is is the structural building block of a chromosome. It is found inside the nucleus of the cell and consists of a complex of DNA and protein. - Cancers of the lung, pleura (lung lining) and esophagus show profound changes in chromatin structure that may affect the course of disease in patients. - A better understanding of these diseases and the genetic changes associated with them may be helpful in developing new treatments for them. Objectives: - To evaluate people with cancer of the lung, pleura or esophagus for participation in NCI clinical trials. - To obtain biopsies (small pieces of tissue) from tumor, normal tissue and blood samples to learn more about the cellular changes in blood and tissue in tumors of the lung, esophagus and pleura and surrounding structures in the chest. Eligibility: Patients 2 years of age and older with cancer of the lung, esophagus, pleura, mediastinum or chest wall, or cancers of other origin that have invaded the lung. Note: Patients >= 2 years of age and under 18 years of age may only participate in research sample collection. Design: - Up to 1310 patients may be included in this study. - Patients undergo standard tests for evaluating the stage of their disease and for determining eligibility for an NCI investigational treatment study. - All patients undergo bronchoscopy and bronchoalveolar lavage ("washing" with salt water) to assess their tumor and collect a sample of normal tissue. Patients whose tumor is located on the outside portion of the lung may also undergo thoracoscopy to obtain a tumor sample. For bronchoscopy and bronchoalveolar lavage a tube with a light is passed through the nose or mouth into the lungs to examine the airways. Salt water is injected through the tube and then withdrawn to obtain cells for laboratory studies. For the thoracoscopy a small tube with a light is put through a small hole in the chest to obtain the tumor sample. Both procedures are usually done under general anesthesia. The tissue is examined to identify cell characteristics of people who respond to certain therapies and to identify markers on the surface of the tissue that may be useful in future research and treatment. - Blood and urine samples are collected from patients. - Patients who are eligible for a treatment study at NCI are offered participation in the study. - Patients for whom standard surgery, radiation or chemotherapy is more appropriate may receive treatment at NCI or with their own physician. - Patients who receive treatment at NCI return for follow-up examinations 4 weeks after discharge and then every 2 to 4 months depending on the nature of their cancer.

Type: Observational

Start Date: Nov 2005

open study

Pomalidomide and Nivolumab in People With Virus-Associated Malignancies With or Without HIV
National Cancer Institute (NCI) Viral Associated Malignancies Kaposi Sarcoma EBV/KSHV-associated Lymphomas
Background: Less toxic and more effective treatments are needed for cancers caused by viruses. These cancers include Hodgkin and non-Hodgkin lymphoma, hepatocellular carcinoma, head and neck cancer, nasopharyngeal carcinoma, gastric cancer, anal cancer, cervical cancer, vaginal cancer, vulvar canc1 expand

Background: Less toxic and more effective treatments are needed for cancers caused by viruses. These cancers include Hodgkin and non-Hodgkin lymphoma, hepatocellular carcinoma, head and neck cancer, nasopharyngeal carcinoma, gastric cancer, anal cancer, cervical cancer, vaginal cancer, vulvar cancer, penile cancer, Merkel cell carcinoma, Kaposi sarcoma, and leiomyosarcoma. Researchers want to see if a combination of drugs can help. Objective: To find a safe dose of pomalidomide plus nivolumab in people with cancers caused by viruses. Eligibility: Adults ages 18 or older who have cancers caused by Epstein Barr virus (EBV), human herpes virus 8/Kaposi sarcoma herpesvirus (HHV8/KSHV), human papilloma virus (HPV), hepatitis B or C virus (HBV/HCV), and Merkel cell polyomavirus (MCPyV) that have not responded to previous treatments or have relapsed, or in adults who do not want to have surgery because of disfigurement or other risks. Adults who have HIV with any CD4 T cell count are eligible. Design: Participants will be screened with blood and urine tests, scans, and heart tests. They will have a physical exam. Their ability to perform normal daily activities will be assessed. They may have a tumor biopsy. Treatment will be given in 28-day cycles. Participants will take pomalidomide as a tablet by mouth for 21 days of each cycle, for up to 24 cycles. They will get nivolumab by intravenous infusion once each cycle. They will take an aspirin each day until 30 days after their last dose of the study drugs. Participants will keep a pill diary. They will bring it to their study visit at the end of each cycle. At these visits, some screening tests will be repeated. Participants with Kaposi sarcoma will have pictures taken of their lesions. Participants will give blood and saliva samples for research. They may have optional anal and/or cervical swabs. They may have optional biopsies. Participants will have a follow-up visit 30 days after they stop taking the study drugs, then every month for 100 days. Some screening tests will be repeated. Then they may by contacted by phone every 3 months for 9 months, and then every 6 months thereafter.

Type: Interventional

Start Date: Dec 2021

open study

Recruitment and Characterization of Healthy Research Volunteers for NIMH Intramural Studies
National Institute of Mental Health (NIMH) Healthy Volunteer
Objective: To screen and create a list of adult volunteers in good health for participation in research studies conducted at the National Institutes of Health (NIH) in Bethesda, Maryland. Develop a normative set of structural and functional brain MRI scans that are linked to healthy research volunt1 expand

Objective: To screen and create a list of adult volunteers in good health for participation in research studies conducted at the National Institutes of Health (NIH) in Bethesda, Maryland. Develop a normative set of structural and functional brain MRI scans that are linked to healthy research volunteer characteristics. Maximize scientific impact of data from volunteers by broadly sharing with other researchers. Study Population: Adult males and females in general good health who are 18 years of age and older. Design: Adult individuals who are interested in participating in NIMH IRP clinical studies as a healthy research volunteer can directly visit or be directed to visit the study website where they will first consent electronically and then complete a set of online self-report measures. Items may include: demographic information, mental health symptoms, disability status, substance use patterns, handedness and clinical/family history. Individuals who are flagged based on predetermined responses to survey items will be further screened by a member of the study clinical team. If found to be ineligible for the study because of a clinically significant or unstable medical or mental health condition, these individuals will be referred back to the community and/or given information about NIMH clinical studies for which they may be eligible. Respondents with no flags or who pass through additional screening will be scheduled for an in-person assessment. During the outpatient appointment and after in-person informed consent, participants will receive a brief clinical interview to screen for current medical and mental conditions, and risk for self-harm. They will complete assessments of psychological, emotional, physiologic, biological and cognitive functioning. Participants will undergo a physical exam and be asked to provide blood and urine samples for routine clinical labs. Participants can separately consent for an optional baseline brain magnetic resonance imaging (MRI) scan and an optional magnetoencephalography (MEG) exam. All consent forms will explicitly inform participants that if enrolled in the study, their de-identified data will be broadly and publicly shared through NIH-approved data repositories. Participants in this recruitment and characterization study will then be placed on a list of healthy research volunteers from which other NIMH IRP studies may recruit according to the inclusion and exclusion criteria in their respective IRB-approved protocols. Outcome Measures: Outcome measures may include demographic data, mental and medical history and symptoms, results of psychological, emotional, physiologic, biological, and cognitive testing, physical exam and MRI findings....

Type: Observational

Start Date: Nov 2017

open study

Clinical and Molecular Studies in Families With Inherited Eye Disease
National Eye Institute (NEI) Inherited Eye Disease
Background: Genes are the basic units of heredity. When genes are changed, certain cells don t work like they should. Researchers want to try to better understand the genetic conditions that are linked with inherited eye diseases. Objective: To try to identify the genes linked to the development1 expand

Background: Genes are the basic units of heredity. When genes are changed, certain cells don t work like they should. Researchers want to try to better understand the genetic conditions that are linked with inherited eye diseases. Objective: To try to identify the genes linked to the development of inherited eye diseases. Eligibility: People ages 4 and older who have or have a family member with an inherited eye disease Design: Participants will be screened with medical history and medical records. Participants will have one visit that will take 3-4 hours. This will include: Medical and family history Eye exam: This includes the pupil being dilated. Electroretinography: A small electrode is taped to the forehead. Participants sit in the dark with their eyes patched for 30 minutes. Then numbing drops and contact lenses are put in the eyes. They will watch flashing lights. Blood tests Saliva sample: They will spit into a container or have the inside of their cheek swabbed. Genetic testing will be done on participants blood or saliva. Participants may meet with the researchers to discuss their genetic tests.

Type: Observational

Start Date: Oct 2016

open study

Oral Specimen and Data Acquisition Study of Subjects Requiring Third Molar Removal
National Institute of Dental and Craniofacial Research (NIDCR) Stomatognatic Tooth Diseases Diseases Tooth Tooth Impaction
Background: - The third molars (wisdom teeth) normally grow in during late adolescence or early adulthood. Many people need or choose to have these teeth removed with oral surgery. Normally, the removed teeth and tissue are thrown away as medical waste. However, oral health researchers want to col1 expand

Background: - The third molars (wisdom teeth) normally grow in during late adolescence or early adulthood. Many people need or choose to have these teeth removed with oral surgery. Normally, the removed teeth and tissue are thrown away as medical waste. However, oral health researchers want to collect the teeth and tissue for research. They also want to encourage dentists at the National Institutes of Health to improve their skills in oral surgery. This study will collect the teeth and tissue of people who need to have oral surgery to remove their wisdom teeth. Objectives: - To provide continued dental skills training for dentists at the National Institutes of Health. - To collect teeth and tissue samples following wisdom tooth removal surgery. Eligibility: - Individuals between 16 and 50 who need to have their wisdom teeth removed. Design: - This study will involve a minimum of three visits. There will be a screening visit, a surgery visit, and at least one follow-up visit. - Participants will be screened with a physical exam and medical history. A full dental exam with x-rays will be given to evaluate the need for surgery. - At the second visit, participants will have oral surgery to remove their wisdom teeth. The teeth and tissue removed during the surgery will be collected for study. - Participants will receive drugs to control the pain after surgery. They will also be able to contact a dentist if there are any problems. - Between 7 and 21 days after surgery, participants will have a followup visit to check the healing. If they are having no problems, this will be the last visit. If there are any postsurgery issues, they will be scheduled for additional visits as needed.

Type: Observational

Start Date: Jun 2013

open study

Deep Brain Stimulation Surgery for Movement Disorders
National Institute of Neurological Disorders and Stroke (NINDS) Parkinson's Disease Essential Tremor Dystonia
Background: - Deep brain stimulation (DBS) is an approved surgery for certain movement disorders, like Parkinson's disease, that do not respond well to other treatments. DBS uses a battery-powered device called a neurostimulator (like a pacemaker) that is placed under the skin in the chest. It is1 expand

Background: - Deep brain stimulation (DBS) is an approved surgery for certain movement disorders, like Parkinson's disease, that do not respond well to other treatments. DBS uses a battery-powered device called a neurostimulator (like a pacemaker) that is placed under the skin in the chest. It is used to stimulate the areas of the brain that affect movement. Stimulating these areas helps to block the nerve signals that cause abnormal movements. Researchers also want to record the brain function of people with movement disorders during the surgery. Objectives: - To study how DBS surgery affects Parkinson s disease, dystonia, and tremor. - To obtain information on brain and nerve cell function during DBS surgery. Eligibility: - People at least 18 years of age who have movement disorders, like Parkinson's disease, essential tremor, and dystonia. Design: - Researchers will screen patients with physical and neurological exams to decide whether they can have the surgery. Patients will also have a medical history, blood tests, imaging studies, and other tests. Before the surgery, participants will practice movement and memory tests. - During surgery, the stimulator will be placed to provide the right amount of stimulation for the brain. Patients will perform the movement and memory tests that they practiced earlier. - After surgery, participants will recover in the hospital. They will have a followup visit within 4 weeks to turn on and adjust the stimulator. The stimulator has to be programmed and adjusted over weeks to months to find the best settings. - Participants will return for followup visits at 1, 2, and 3 months after surgery. Researchers will test their movement, memory, and general quality of life. Each visit will last about 2 hours.

Type: Interventional

Start Date: Aug 2011

open study

A Mixed-Methods Metabolomics Investigation of Lifestyle and Energy Balance During Breast Cancer Sur1
Abramson Cancer Center at Penn Medicine Breast Cancer
The MILES Study is a longitudinal, mixed-methods investigation of urinary biomarkers, energy balance, and lifestyle modifications in diverse women during early breast cancer treatment. The study's overarching goal is to assess dietary quality and physical activity changes over time using reliable,1 expand

The MILES Study is a longitudinal, mixed-methods investigation of urinary biomarkers, energy balance, and lifestyle modifications in diverse women during early breast cancer treatment. The study's overarching goal is to assess dietary quality and physical activity changes over time using reliable, scalable tools suitable for clinical or population settings, supporting newly diagnosed patients in adopting and maintaining healthy behaviors through treatment and survivorship.

Type: Interventional

Start Date: Jan 2026

open study

The Efficacy of Vitamin D Supplementation to Sustain Performance Outcomes
Walter Reed Army Institute of Research (WRAIR) Acute Stress Reaction
The goal of this clinical trial is to find out if vitamin D supplements help healthy adults maintain their cognitive and simple physical task performance and emotional state during highly stressful situations. The main question it aims to answer is: - Does vitamin D help maintain cognitive and ph1 expand

The goal of this clinical trial is to find out if vitamin D supplements help healthy adults maintain their cognitive and simple physical task performance and emotional state during highly stressful situations. The main question it aims to answer is: - Does vitamin D help maintain cognitive and physical task performance and emotional state during highly stressful situations? Researchers will compare vitamin D to placebo (a look-alike tablet that contains no active ingredients) to see if vitamin D better maintain cognitive and physical task performance and emotional state during highly stressful situations. Participants will: - Take vitamin D or placebo tablets daily for 8 weeks. - Perform cognitive and simple physical tasks and rate their emotional state under highly stressful situations. - Wear a stress belt that delivers mild electric shocks 1 - 5 times while participants are performing laboratory tasks. - Wear a wristwatch-shaped activity monitor for 9 weeks. - Visit the laboratory 5 times.

Type: Interventional

Start Date: Jun 2026

open study

Hydration & Female Life Stages
PepsiCo Global R&D Dehydration Menstruation Pre-menopause Peri-menopausal Women Post-menopausal Women
Female life stages including premenopausal, perimenopausal, postmenopausal, are characterized by changing concentrations and patterns of hormones. The premenopause stage represents the reproductive years with normal menstrual cycles lasting between 21-35 days. The perimenopause stage is the beginni1 expand

Female life stages including premenopausal, perimenopausal, postmenopausal, are characterized by changing concentrations and patterns of hormones. The premenopause stage represents the reproductive years with normal menstrual cycles lasting between 21-35 days. The perimenopause stage is the beginning of the menopause transition and can last up to 10 years. During this transition, menstrual cycles become longer and irregular in length (7 days or longer). After 12 consecutive months with no period, the transition is complete into the postmenopause stage. Hormones that change across the lifespan are known to influence systems that regulate thirst, fluid balance, and sodium balance. Yet, fluid balance across life stages remains poorly understood, with no direct comparisons across all three life stages. The purpose of this study is to evaluate the effect of female life stage on rehydration with water and electrolyte solution after overnight fast and fluid restriction

Type: Interventional

Start Date: Jun 2026

open study

A Study to Evaluate the Safety and Tolerability of Different Doses of CX11 Tablets
Corxel Pharmaceuticals Obesity & Overweight
A multi-center, randomized, placebo-controlled, double-blinded (within cohorts), Sponsor-unblinded, Phase 1b study to explore the safety, pharmacokinetics, and pharmacodynamics of CX11 tablets in participants with obesity or overweight with weight-related comorbidities. expand

A multi-center, randomized, placebo-controlled, double-blinded (within cohorts), Sponsor-unblinded, Phase 1b study to explore the safety, pharmacokinetics, and pharmacodynamics of CX11 tablets in participants with obesity or overweight with weight-related comorbidities.

Type: Interventional

Start Date: May 2026

open study

The Effect of a Daily Magnesium and Melatonin Supplement on Sleep Quality in People With Nighttime1
StudySetGo Poor Sleep Quality Leg Cramps, Nocturnal
Participants are being invited to take part in a research study. Before deciding whether to take part, it is important for participants to understand why the research is being done and what it will involve. Purpose: This study will investigate whether a multi-ingredient nutritional supplement cont1 expand

Participants are being invited to take part in a research study. Before deciding whether to take part, it is important for participants to understand why the research is being done and what it will involve. Purpose: This study will investigate whether a multi-ingredient nutritional supplement containing magnesium and melatonin can improve sleep quality in adults who experience disrupted sleep due to nighttime leg cramps. What participation involves: Participation lasts 8 weeks. Participants will be randomly assigned to take either the nutritional supplement or a placebo (inactive look-alike) every night before bed for 6 weeks. Participants will wear an Oura Ring wearable device on one finger continuously for 8 weeks throughout the study and complete short questionnaires using a smartphone app. The Oura Ring and study supplement will be sent to the participant's home address. Participants will never need to travel to a research centre; all contact with the research team will be by video call, phone, messaging, or email. How long: Total involvement will be 8 weeks, made up of a 2-week baseline period and a 6-week supplementation period. Each day, participants will complete a short app-based questionnaire (approximately 1 minute). At the end of weeks 2, 4, 6, and 8, participants will complete additional app-based questionnaires (approximately 10 minutes).

Type: Interventional

Start Date: Jun 2026

open study

Wearable Technology in Heart Failure Patients
The Cleveland Clinic Heart Failure
The primary objective is to establish a Cleveland Clinic-led registry designed to integrate continuous physiological data from consumer wearables, captured by the HeartBit app and a Case Western Reserve University (CWRU)-based platform, with clinical data from patients' individual Electronic Health1 expand

The primary objective is to establish a Cleveland Clinic-led registry designed to integrate continuous physiological data from consumer wearables, captured by the HeartBit app and a Case Western Reserve University (CWRU)-based platform, with clinical data from patients' individual Electronic Health Record (EHR). This proposal is for understanding the use of personal wearable devices (such as: Fitbit, and Apple Watch) to gather physiological data (such as: heart-rate, steps taken, sleep cycles, and calories expended) and correlate those data with self-reported health status. The research team intends to collect all of the data generated by the participant's personal wearable devices and to perform an integrated analysis of the physiological data generated by the wearable devices. The investigators specifically aim to uncover patterns from the data that they can evolve models from. The investigators' goal is to better predict and diagnose the adverse effects associated with daily lifestyle, including cardiovascular risk, musculoskeletal, metabolic risks, stress, and sleep disturbances. These data may be used to better understand the daily habits and lifestyle choices to possibly predict a person's health and disease risk to provide a more comprehensive diagnosis with early recognition and prevention. As wearable devices become more accurate and cheaper to purchase for the general public, integrative analysis of wearable data from multiple devices may lead to models that can be used by clinicians and basic scientists to make inferences about the daily lifestyle and its effects on health and disease.

Type: Observational [Patient Registry]

Start Date: Jun 2026

open study

Virtual Reality to Reduce Anxiety, Agitation and Delirium in Critically Ill Patients
Milton S. Hershey Medical Center Feasibility, Tolerance and Safety of VR Delivery in an Adult ICU
This is a pilot feasibility study examining the use of immersive virtual reality (VR) in adult intensive care unit (ICU) patients. The study evaluates whether brief, non-interactive VR sessions delivered using a commercially available standalone head-mounted display with calming, nature-based conte1 expand

This is a pilot feasibility study examining the use of immersive virtual reality (VR) in adult intensive care unit (ICU) patients. The study evaluates whether brief, non-interactive VR sessions delivered using a commercially available standalone head-mounted display with calming, nature-based content can be delivered safely and effectively within routine SICU workflow. Exploratory objectives assess whether VR sessions are associated with changes in anxiety, agitation, delirium, pain, and sedative medication requirements. This research is not intended to evaluate the safety or effectiveness of the headset and/or the specific VR software used for the research

Type: Interventional

Start Date: Jun 2026

open study

A Study of a Urine Test to Detect Colorectal Cancer
Memorial Sloan Kettering Cancer Center Colorectal Cancer Precancerous Polyp Rectal Bleeding CRC
The purpose of this study is to find out whether a urine test can detect colorectal cancer (CRC) and precancerous polyps in participants living in Ghana, Tanzania, and South Africa. expand

The purpose of this study is to find out whether a urine test can detect colorectal cancer (CRC) and precancerous polyps in participants living in Ghana, Tanzania, and South Africa.

Type: Observational

Start Date: Jun 2026

open study

PPD™ CorEvitas™ Psoriasis (PSO) Early Treatment Response Non-Interventional Study
CorEvitas Psoriasis
This is a 24-week prospective, single-arm cohort, study of patients initiating advanced therapy for the treatment of moderate-to-severe plaque PSO. Eligible patients must be willing to be seen in-person by their treating physician for a Baseline visit (with first dose of the advanced therapy occurr1 expand

This is a 24-week prospective, single-arm cohort, study of patients initiating advanced therapy for the treatment of moderate-to-severe plaque PSO. Eligible patients must be willing to be seen in-person by their treating physician for a Baseline visit (with first dose of the advanced therapy occurring within 14 days), and at 16 (+/- 5 days) and 24 weeks (+14 days) calculated based on date of first dose of the advanced therapy and must provide informed consent prior to enrolling in the study or completing study-specific questionnaires or procedures. Data will be collected from both subjects and their treating dermatology provider at predetermined scheduled intervals (Baseline, Week 16 and Week 24) using a structured and standardized data collection tool.

Type: Observational [Patient Registry]

Start Date: Jun 2026

open study

Effects of Peanut Consumption on Adults With Metabolic Associated Fatty Liver Disease
Henry Ford Health System MASLD Fatty Liver
The aim of this randomized interventional trial is to understand the effects of peanut consumption on patients with metabolic associated fatty liver. The main goal is to investigate if patients who consume peanuts have improved liver marker tests as well as metabolic profile. We will also investiga1 expand

The aim of this randomized interventional trial is to understand the effects of peanut consumption on patients with metabolic associated fatty liver. The main goal is to investigate if patients who consume peanuts have improved liver marker tests as well as metabolic profile. We will also investigate how peanuts alter the gut microbes and liver fat content in patients with metabolic associated fatty liver. - Participants will be randomized into intervention (peanut consumption for 12 weeks) and control (regular diet) arm. - Stool sample and blood (for biomarkers) collection across both arms at baseline and post-intervention - Daily log to be completed for tracking peanut consumption - 2-day Dietary recall at baseline, during Week 6 and Week 12 - Poat intervention Fibro scans for participants with baseline scans available

Type: Interventional

Start Date: Jun 2026

open study

Striatal and Extra-Striatal Cholinergic Terminal Density in LRRK2-PD Mutation
University of Michigan Parkinson Disease
This study explores how a specific genetic mutation of leucine-rich repeat kinase 2 (LRRK2) affects individuals with Parkinson's disease (PD), comparing those with the mutation to others with Parkinson's disease and without the mutation (iPD). Participants will complete positron emission tomography1 expand

This study explores how a specific genetic mutation of leucine-rich repeat kinase 2 (LRRK2) affects individuals with Parkinson's disease (PD), comparing those with the mutation to others with Parkinson's disease and without the mutation (iPD). Participants will complete positron emission tomography (PET) and magnetic resonance imaging (MRI) brain imaging, cognitive tests, motor tests, sensory tests, and questionnaires. The aims of this study are to compare brain chemicals in LRRK2 PD patients with iPD patients and to correlate brain chemicals with motor and cognitive tests in LRRK2 PD and iPD patients.

Type: Observational

Start Date: Sep 2025

open study