22,349 matching studies

Sponsor Condition of Interest
Ultra-Low Field (ULF) Point-of-Care (POC) MRI System for Brain Morphology and Pathology
National Institute of Neurological Disorders and Stroke (NINDS) Nervous System Diseases (C10 Unique ID D009422)
Background: Magnetic resonance imaging (MRI) is a tool for getting pictures of the tissues and organs inside the body. MRI can help diagnose many injuries and diseases. But not all patients are equally likely to receive MRIs. Factors such as race or ethnicity, distance to imaging centers, mobility1 expand

Background: Magnetic resonance imaging (MRI) is a tool for getting pictures of the tissues and organs inside the body. MRI can help diagnose many injuries and diseases. But not all patients are equally likely to receive MRIs. Factors such as race or ethnicity, distance to imaging centers, mobility, and a lower income can limit some people s access to MRIs. A new ultra-low field (ULF) type of MRI, which can be used on a vehicle, may help take imaging scans to more people. But researchers need to know that UFL-MRI works just as well as standard MRIs. Objective: To learn whether UFL-MRI is as good as standard MRI at detecting neurological disorders. Eligibility: People aged 3 years or older who have or show symptoms of neurological disease (such as stroke, cancer, or epilepsy). Healthy adults are also needed. Design: Participants will have 1 or 2 study visits. Adult participants will have a physical exam. They will receive two MRI exams: - Standard MRI. They will lie still on a narrow bed that will move into a large tube. They will wear earplugs to muffle the sounds. - ULF-MRI. They will lie on a stretcher, and only their head will be inside a smaller tube. The noises will be quieter. They will wear earplugs to muffle the sounds. Some adults may receive a contrast agent given through a small tube attached to a needle in the arm. The contrast agent helps the researchers see differences in the body more clearly. This may be done during 1 or both MRIs. Children will have only 1 ULF-MRI. Some participants may be invited to have additional visits for up to 6 months.

Type: Observational

Start Date: Mar 2024

open study

MK-7075 (Miransertib) in Proteus Syndrome
National Human Genome Research Institute (NHGRI) Proteus Syndrome
Background: Proteus syndrome is a rare overgrowth disorder. Most people begin to have symptoms between 6 months and 2 years of age. There are very few living adults with this disease. There is also no known treatment for it. Researchers want to see if a new drug can slow down or stop overgrowth in1 expand

Background: Proteus syndrome is a rare overgrowth disorder. Most people begin to have symptoms between 6 months and 2 years of age. There are very few living adults with this disease. There is also no known treatment for it. Researchers want to see if a new drug can slow down or stop overgrowth in people with Proteus syndrome. Objective: To learn if miransertib is a safe and effective treatment for Proteus syndrome. Eligibility: People ages 3 and older with Proteus syndrome. Design: Participants will be screened with a medical checkup. They will answer questions about their medical history and current health. They will have a physical exam with vital signs. They will have an electrocardiogram to measure their heartbeat. They will give blood and urine samples. They will repeat the screening tests during the study. Participants will take a miransertib pill once a day. They will bring their empty pill bottles with them to the NIH when they visit. If they can t swallow a pill, researchers will try to find other ways for them to take the drug. Participants will have X-rays, ultrasounds, and imaging scans. Photos may be taken of their feet and other parts of the body that have or develop signs of Proteus syndrome. Participants will have lung function tests to measure how much and how fast air moves out of their lungs. Participants will complete surveys about their levels of pain, physical functioning, and quality of life. Participants may have additional tests performed to assess their individual disease. They may have consultations with other specialists. Participation lasts about 4 years. Participants will have 20-30 visits at the NIH....

Type: Interventional

Start Date: May 2022

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

A Prospective Natural History Study of Lymphatic Anomalies
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Lymphatic Diseases Lymphatic Abnormalities
Background: The lymphatic system is a network of vessels that carry a clear fluid called lymph through the body. Problems in the lymphatic system can cause pain, fluid buildup, and issues with immunity. There is much researchers do not understand about lymphatic anomalies. In this natural history1 expand

Background: The lymphatic system is a network of vessels that carry a clear fluid called lymph through the body. Problems in the lymphatic system can cause pain, fluid buildup, and issues with immunity. There is much researchers do not understand about lymphatic anomalies. In this natural history study, they will collect data from a lot of people over a long time. Objective: To better understand why lymphatic anomalies develop. The goal is to improve future treatments. Eligibility: People aged 0 days and older with a suspected or confirmed lymphatic anomaly. Their unaffected parents or siblings aged 7 years or older are also needed. Design: Participants may remain in the study indefinitely. Affected participants may be evaluated every 10 months to 2 years. Some participants will be seen over telemedicine. Others will be seen at the NIH Clinical Center for 2-5 days. All participants will have a physical exam. They may provide specimens including blood, saliva, hair follicles, stool, skin, and other tissues. Samples may be used for genetic testing. Participants may undergo other tests depending on their medical conditions. The NIH Clinical Center visit may include: Heart tests include placing stickers on the chest to measure electrical activity and using sound waves to capture pictures of the heart. A lung test measures the muscle strength in the chest. Participants will blow into a tube. Photographs may be taken of participants faces and other features. Imaging scans will take pictures of the inside of the body. One scan will measure bone density. One type of scan tracks how lymph fluid moves through the body. Participants will be under anesthesia, and they will be injected with a dye.

Type: Observational

Start Date: Mar 2023

open study

Natural History of Autosomal Dominant Hearing Loss
National Institute on Deafness and Other Communication Disorders (NIDCD) Hearing Loss
Background: Hereditary hearing loss is one of the most common sensory disabilities affecting newborns. The main options for people with hereditary hearing loss are hearing aids and cochlear implants. Both options have their limitations and do not restore biological hearing. Researchers want to lea1 expand

Background: Hereditary hearing loss is one of the most common sensory disabilities affecting newborns. The main options for people with hereditary hearing loss are hearing aids and cochlear implants. Both options have their limitations and do not restore biological hearing. Researchers want to learn if gene editing might be a treatment option. Objective: To understand the genes that cause non-syndromic autosomal dominant hearing loss (DFNA) in people with DFNA as well as their family members. Eligibility: People age 3 99 who have DFNA, affected family members of enrolled participants with DFNA, and unaffected family members of enrolled participants Design: Participants will be screened with a medical and hearing history. Their medical records will be reviewed. Participants will have hearing tests. They will wear headphones or earplugs. They will listen to tones, sounds, and words and may be asked to describe what they hear. Participants will have balance tests. For these, they will wear googles as they watch moving lights or as cold or warm air is blown into their ears. They will sit in a spinning chair in a quiet, dark booth. From a reclined position, they will raise their head while listening to clicking sounds. Participants will have blood drawn through a needle in the arm. Some blood will be used for gene testing. Some participants will have 2 skin biopsies. The skin will be washed, and a numbing medicine will be injected. Two small pieces of skin will be removed. Participants may have a physical exam. Participation will last for up to 20 years. Participants may give medical updates once a year.

Type: Observational

Start Date: Feb 2021

open study

Immune Regulation in Patients With Common Variable Immunodeficiency and Related Inborn Errors of Im1
National Institute of Allergy and Infectious Diseases (NIAID) XLA CVID Yao Syndrome Blau Syndrome
This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity (IEI). These are conditions where the immune system does not function properly, leading to frequent infections and other complications such as gastrointestinal i1 expand

This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity (IEI). These are conditions where the immune system does not function properly, leading to frequent infections and other complications such as gastrointestinal inflammation, lung and liver disease, autoimmune conditions, and an increased risk of certain cancers. By studying patients with CVI and related immune disorders, we hope to develop better ways to diagnose, treat, and prevent complications associated with these conditions. Patients diagnosed with CVID or related immune disorders must be referred by their physician and medical records reviewed by the study team to confirm eligibility to participate in this study. Once enrolled, participants will undergo various tests, including blood draws, physical exams, and imaging studies like CT scans to track changes over time. We may collect samples such as blood, urine, stool, or saliva for research purposes. If a surgical procedure or biopsy is performed because it is medically necessary, we may collect an additional sample for research testing. Family members of patients may be asked to provide blood samples for comparison. Some tests may be done remotely if participants or family members cannot travel to the study site. Who Can Participate - Patients diagnosed with CVI or related IEI, such as X-linked agammaglobulinemia, Blau Syndrome or Yao Syndrome. - Participants must be at least 2 years old. - Family members of patients may include parents, siblings, grandparents, children, aunts, uncles, and cousins. - Pregnant women already enrolled in the study will continue to participate, but new pregnant participants will not be enrolled. Potential Risks and Benefits - Risks: Blood draws may cause discomfort, bruising, or infection. Apheresis may cause dizziness, nausea, or muscle cramps; this procedure is to collect specific cells in the blood and is infrequently done on this protocol. Extra biopsies during clinically indicated procedures may increase the risk of complications; they will only be collected after the medically necessary biopsies are taken and if it is safe to collect any extra biopsies. - Benefits: Participants may not receive direct medical benefits, but the study will contribute to a better understanding of CVID and related conditions, potentially leading to improved treatments.

Type: Observational

Start Date: Jan 1990

open study

Phase I Trial of rhIL-15 Plus Dinutuximab Plus Irinotecan/Temozolomide for Children and Young Adult1
National Cancer Institute (NCI) Neuroblastoma
Background: Neuroblastoma is a type of cancer that causes tumors in nerves. It affects mainly infants and toddlers, and it causes about 15 percent of cancer-related deaths in children. Objective: To test a new drug (rhIL-15), combined with 3 standard cancer drugs, in people with neuroblastoma.1 expand

Background: Neuroblastoma is a type of cancer that causes tumors in nerves. It affects mainly infants and toddlers, and it causes about 15 percent of cancer-related deaths in children. Objective: To test a new drug (rhIL-15), combined with 3 standard cancer drugs, in people with neuroblastoma. Eligibility: People aged 3 to 35 years with neuroblastoma that did not respond or returned after standard treatment. Design: Participants will be screened. They will have a physical exam with blood and urine tests. They will have imaging scans and tests of their heart and lungs. They will have a bone marrow biopsy: A sample of tissue and fluid from inside a bone will be removed with a large needle. Participants will be treated in 21-day cycles. They may have up to 4 treatment cycles. rhIL-15 is given through a needle into a vein over 5 to 7 days during the first week of each cycle. Participants will stay in the hospital while they are receiving the rhIL-15. Starting in the second week of the second cycle, participants will receive other drugs for treating cancer. They will have no study treatments during the third week of each cycle. Participants will visit the clinic at least 2 times a week throughout all 4 treatment cycles. They will have a physical exam and blood tests during these visits. Imaging scans, bone marrow biopsy, and other tests will be repeated at the end of cycles 2 and 4. Participants will have a follow-up visit 6 months after treatment ends. This visit will include a physical exam with blood and urine tests.

Type: Interventional

Start Date: Oct 2025

open study

Focal Therapy With Stereotactic Body Radiation Therapy (SBRT) for Patients With a Single Prostate T1
National Cancer Institute (NCI) Prostatic Neoplasms Prostate Cancer Prostate Adenocarcinoma
Background: The current standard treatment of prostate cancer is either surgery or radiation. Typically, this includes either the removal or radiation of the whole prostate gland. Many people now seek out focal therapy options to decrease the side effects of treatment. Until now, several forms of1 expand

Background: The current standard treatment of prostate cancer is either surgery or radiation. Typically, this includes either the removal or radiation of the whole prostate gland. Many people now seek out focal therapy options to decrease the side effects of treatment. Until now, several forms of physical destruction with heat (thermal ablation), cold (cryotherapy), sound waves (HIFU), laser (FLA), and electrical energy (IRE). A new type of radiation (SBRT) may be an effective way to cure men of early-stage prostate cancer with fewer side effects than standard treatments. Objective: To see how people with untreated localized prostate cancer will respond to focal therapy with SBRT. Eligibility: People aged 18 years and older with untreated localized prostate cancer (prostate cancer which has not spread outside of the prostate gland). Design: - Participants will undergo screening including blood tests, an MRI, a PSMA PET/CT (18F-DCFPyL), and a biopsy. - Small, non-radioactive, gold seeds about the size of a grain of rice will be placed in and/or around the tumor to help target the radiation treatment. - Radiation (SBRT) will occur in 2 separate sessions about 1 week apart. No sedation is used, these sessions are painless. Each session will take about 1-2 hours. Participants can go home afterwards. - Follow-up will continue for 2 years with repeat scans (MRI and PSMA PET/CT) and blood (PSA) tests. - After two years, a biopsy will be done to understand the impact of this new treatment on prostate cancer.

Type: Interventional

Start Date: Oct 2023

open study

Acute Effects of Alcohol on PET Imaging of Phosphodiesterase-4B (PDE4B)
National Institute of Mental Health (NIMH) Alcohol Use Disorder
Background: Phosphodiesterase-4B (PDE4B) is a protein in the brain that may play a role in several mental health disorders. Researchers want to know if drinking alcohol increases the binding of a radioactive tracer to PDE4B in the brain because of increased activity and/or amount of the protein. T1 expand

Background: Phosphodiesterase-4B (PDE4B) is a protein in the brain that may play a role in several mental health disorders. Researchers want to know if drinking alcohol increases the binding of a radioactive tracer to PDE4B in the brain because of increased activity and/or amount of the protein. This knowledge may help create new ways to treat people with alcohol use disorder (AUD). Objective: To learn if alcohol increases PDE4B activity in the brain. Eligibility: Healthy people aged 21 to 70 years who drink socially but do not have AUD. They must be enrolled in protocol 14-AA-0181"NIAAA Natural History Protocol". Design: Participants will have up to 4 clinic visits with up to 3 imaging scans of the brain; these will include 1 or 2 positron emission tomography (PET) scans and 1 magnetic resonance imaging (MRI) scan. The first PET scan will be a baseline. Participants will receive a radioactive tracer through a tube inserted into a vein. A second tube will be inserted so that blood can be drawn during the scan. Participants will lie on a bed that slides into a doughnut-shaped machine. This visit will take about 6 hours. For the next PET scan, participants will receive alcohol (ethanol) through a tube in a vein until they have a blood alcohol concentration that is equal to the legal driving limit. This is the same as 4 or 5 drinks for most people. After the scan, participants must remain at the clinic for a few hours until their blood alcohol drops. This visit will take 14 to 16 hours. The MRI scan of the brain will take up to 2 hours in a separate clinic visit.

Type: Interventional

Start Date: Dec 2025

open study

Collection of Blood, Bone Marrow, Skin, Saliva, and Stool Samples From Healthy Volunteers Used for1
National Cancer Institute (NCI) Myelodysplastic Syndromes
Background: Myelodysplastic syndromes (MDS) are disorders of blood stem cells that can develop into blood cancers. Treatment options are limited. To find better treatments, researchers need to better understand how MDS develops. To do that, they must be able to compare biospecimens from people wit1 expand

Background: Myelodysplastic syndromes (MDS) are disorders of blood stem cells that can develop into blood cancers. Treatment options are limited. To find better treatments, researchers need to better understand how MDS develops. To do that, they must be able to compare biospecimens from people with the disease to those of healthy people. Objective: This study will create a database of biospecimens collected from healthy volunteers. Eligibility: Healthy people aged 18 and older. Design: Participants will be screened. They will have a physical exam with blood and urine tests. Up to 5 types of samples will be collected on 1 or more days within 1 month of screening: Blood: Blood will be drawn by inserting a needle into a vein. Saliva: Participants will scrape the insides of their cheeks with a brush. Stool: Participants will be given a container to collect stool at home. They will use a prepaid envelope to mail in the sample. Bone marrow: A sample of the soft tissue inside the bones will be drawn out. The area to be biopsied, usually the lower back, will be numbed. A needle will be inserted through a small cut to remove the sample. Participants' pain will be monitored; additional numbing medicine may be used. Skin: A piece of skin about 1/6 of an inch across will be cut away. Stitches may be used to close the wound. Participants will return to the clinic to have the stitches removed. Participants do not have to provide all of the samples listed. They will give each sample only once.

Type: Observational

Start Date: Jan 2023

open study

DICER1-related Pleuropulmonary Blastoma Cancer Predisposition Syndrome: A Natural History Study
National Cancer Institute (NCI) Pleuropulmonary Blastoma Cystic Nephroma Ovarian Sertoli-Leydig Cell Tumors Ocular Medulloepithelioma Nasal Chondromesenchymal Hamartoma
Background: - Pleuropulmonary blastoma (PPB) is a rare fast-growing lung tumor that is associated with other, rare tumor types. Most cases of PPB appear in children younger than 6 years of age. Recently, it has been shown that this condition can be inherited (e.g., mutation of the DICER1 gene). Re1 expand

Background: - Pleuropulmonary blastoma (PPB) is a rare fast-growing lung tumor that is associated with other, rare tumor types. Most cases of PPB appear in children younger than 6 years of age. Recently, it has been shown that this condition can be inherited (e.g., mutation of the DICER1 gene). Researchers are studying both clinical and genetic aspects of this newly described condition. They are interested in collecting further medical history and genetic information on individuals and close relatives of individuals who have PPB or other rare associated tumors. Objectives: - To study individuals with a personal or a family history of pleuropulmonary blastoma (PPB) or other rare tumors that can be associated with PPB (e.g., cystic nephroma, nasal chondromesenchymal hamartoma, ovarian Sertoli-Leydig cell tumors, ocular medulloepithelioma). Eligibility: - Individuals who have been diagnosed with PPB and/or PPB-related tumors. - Close blood relatives (e.g., parents, siblings, grandparents) of individuals who have been diagnosed with PPB and/or PPB-related tumors. Design: - Interested participants can enroll or inquire about this study by calling 1-800-518-8474. - Participants will be asked to complete family history and medical history questionnaires. They will complete the questionnaire if they are at least 18 years of age, or another person will complete the questionnaire if the key family member is too young to do so on his or her own. - Participants will be asked to sign a medical record release form to allow researchers to examine detailed medical history information. - Participants may be asked to have a physical examination and imaging studies, provide blood and saliva samples, or provide tumor tissue from prior biopsies or cancer surgeries. - Annually, participants will update the family history and individual information questionnaires to document important changes in medical history, and will also update the medical record release form. Participants may be asked to provide additional cheek lining cells and/or blood samples, as well as tumor tissue from any new or planned biopsies or tumor surgeries. - Treatment will not be provided as part of this protocol.

Type: Observational

Start Date: Feb 2011

open study

Studies of the Natural History of Rheumatic Diseases
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) Rheumatic Diseases Arthritis
This study will explore the causes of rheumatic diseases and why many of them affect certain minority communities more severely. Rheumatic diseases may cause joint pain, stiffness or swelling. Some can involve bones, muscles, tendons or ligaments. Some cause abnormalities of the immune system-the b1 expand

This study will explore the causes of rheumatic diseases and why many of them affect certain minority communities more severely. Rheumatic diseases may cause joint pain, stiffness or swelling. Some can involve bones, muscles, tendons or ligaments. Some cause abnormalities of the immune system-the body s defense against disease. Some rheumatic diseases are painful or deforming and some can be life threatening. Information obtained from this study will be used to learn about the disparities in rheumatic disease in the minority community and to design further, more targeted, research studies to address this issue. Patients with known or suspected rheumatic disease 18 years of age or older may be eligible for this study. Candidates will undergo a medical history and physical examination to confirm the diagnosis of rheumatic disease and determine what is needed for evaluation and treatment. Participants will receive standard medical care for rheumatic disease and arthritis. No experimental treatments, medications or procedures will be included in this study. Procedures may include routine blood tests for blood chemistries, cell counts, and antibodies commonly found in patients with rheumatic disease; a urine test for proteins and cells; and X-rays and other imaging tests to check for abnormalities in the lungs or other organs. All medical information will be kept confidential. Patients who are found to be eligible for other current NIH research studies will be offered an opportunity to participate in these studies....

Type: Observational

Start Date: Oct 2001

open study

FAST for DM - Fatty Acid Supplementation Trial (FAST) for Dermatomyositis (DM)
National Institute of Environmental Health Sciences (NIEHS) Dermatomyositis (DM) Juvenile Dermatomyositis (JDM)
Dermatomyositis (DM) is a rare autoimmune disease that causes muscle weakness, skin rashes, and other symptoms. Researchers think both genetic and environmental factors play a role in this disease. They want to find out more about how diet and lifestyle choices affect people with DM/JDM. Objective1 expand

Dermatomyositis (DM) is a rare autoimmune disease that causes muscle weakness, skin rashes, and other symptoms. Researchers think both genetic and environmental factors play a role in this disease. They want to find out more about how diet and lifestyle choices affect people with DM/JDM. Objective: To see if omega-3 fatty acid supplements from fish oil, combined with a healthy diet, can help people with DM/JDM. Eligibility: Adults 18-60 years old, who live in the United States, can read English, and access Internet to complete questionnaires can participate. Design: Participants will have 5 or 6 inpatient visits. For 5 visits they may need to stay in the Clinical Center for up to 5 days. Participants will be screened. They will have a physical exam with blood, urine and stool tests. They will have tests of their heart and lung function. Their muscle strength will be measured. They may have an imaging scan of their thighs and pelvis. They will complete online questionnaires about their health and lifestyle. They may complete two optional skin biopsies. Participants will take 4 small capsules by mouth twice a day for up to 6 months. The capsules will contain omega-3 fatty acids from fish oil or a placebo. The placebo looks just like the regular capsule but contains no active ingredients. Participants will not know which capsules they are taking. They will follow a healthy diet based on the General Healthy Eating Pattern. Participants will receive dietary coaching and will have virtual check-ins throughout the study. For two 7-day periods, they will wear a watch-like device to track their daily activity and sleep patterns. Participants may opt to remain in the study for an additional 12 weeks. All will receive the fish oil supplements during this stage.

Type: Interventional

Start Date: Apr 2026

open study

Orexin s Role in the Neurobiology of Substance Use Disorder
National Institute on Drug Abuse (NIDA) Nicotine Dependence
Study Description: Despite the availability of pharmacotherapy for some substance use disorders, relapse vulnerability is still a significant issue. This suggests medications with alternative mechanisms of action should be explored to address this unmet need. Substantial preclinical research indic1 expand

Study Description: Despite the availability of pharmacotherapy for some substance use disorders, relapse vulnerability is still a significant issue. This suggests medications with alternative mechanisms of action should be explored to address this unmet need. Substantial preclinical research indicates that orexin antagonism blunts the internally and externally triggered motivation to attain abused substances. This research project will translate these preclinical findings into the clinical domain by administering the FDA approved orexin antagonist, suvorexant, to those with a substance use disorder. Suvorexant s ability to blunt neurobiological correlates of substance misuse will be assessed. This will be assessed following acute and repeated drug administration. Baseline individual differences will be considered to determine whether neurobiological variance influences suvorexant s impact in those with nicotine dependence. In an independent arm, the interaction between suvorexant and a dopamine agonist (methylphenidate) on cognitive function will be assessed in non-smoking individuals. Objectives: The objective is to determine the acute and chronic impact of the orexin antagonist, suvorexant, on neurobiological and behavioral factors linked with substance use disorders. Whether such effects are mediated by baseline characteristics will be tested. Given suvorexant is an FDA approved treatment for insomnia, sleep will be evaluated as well in the nicotine dependent arm. Endpoints: In nicotine-dependent individuals, suvorexant s impact on brain function will be assessed several ways by evaluating: 1) resting function, 2) reactivity to drug cues, 3) reactivity to non-drug related cognitive tasks. Sleep and nicotine use will be measured throughout the study period. In those without nicotine-dependence, the impact of suvorexant and the interaction of acute methylphenidate and suvorexant on brain function will be assessed. This arm will provide insight into how suvorexant impacts reward/cognition as well as impacts the pharmacological influence of methylphenidate on those same measures. Study Population:<TAB> Nicotine dependence arm:140 subjects; Volunteers who are between the ages of 18-60 and are daily smokers/vapers. Control arm: 80 subjects; Volunteers who are between the ages of 18-60 and are non-smokers/vapers This study will be conducted at the NIDA-IRP, Biomedical Research Center, in Baltimore, MD. Description of Study Intervention: Nicotine dependence arm: Suvorexant at 10 mg single dose, and Suvorexant at 10 mg daily for approximately 7 days. Control arm: 1. Tolerability visit with one MRI scan post-20mg methylphenidate, 4 acute drug administration (6-14 days in randomized order: 1. Placebo + placebo; 2. 20mg suvorexant + Placebo; 3. Placebo + 40mg methylphenidate; 4. 20 mg suvorexant + 40mg methylphenidate max) Study Duration: 5 years Participant Duration: 1-2 months

Type: Interventional

Start Date: Feb 2023

open study

Role of GABAergic Transmission in Auditory Processing in Autism Spectrum Disorder
National Institute of Mental Health (NIMH) Autism Spectrum Disorder
Background: Autism spectrum disorder (ASD) is a complex neurodevelopmental syndrome. Researchers think brain development may be controlled by gamma-aminobutyric acid (GABA). They want to learn how abnormalities in the GABA system may contribute to ASD. Objective: To see if repetitive transcrania1 expand

Background: Autism spectrum disorder (ASD) is a complex neurodevelopmental syndrome. Researchers think brain development may be controlled by gamma-aminobutyric acid (GABA). They want to learn how abnormalities in the GABA system may contribute to ASD. Objective: To see if repetitive transcranial magnetic stimulation (rTMS) creates short-term changes in how different parts of the brain communicate. Eligibility: Right-handed people ages 11-17 with ASD, and healthy volunteers ages 18-25. Design: Participants will be screened with: Medical history Physical exam Medicine review Neurological exam Psychological tests and rating scales Forms and surveys. Participants will have a hearing test and ear exam. Participants will have magnetic resonance imaging (MRI) of the brain. They will lie on a table that moves in and out of the MRI scanner. They may look at a screen while in the scanner. A coil will be placed over their head. Participants will have magnetic resonance spectroscopy. It takes pictures of chemicals in the brain using the MRI scanner. Participants will have magnetoencephalography. They will sit in a chair. A helmet with magnetic field sensors will be placed on their head. Participants will have TMS. A wire coil will be held on their scalp. A brief electrical current will pass through the coil. Participants will have electromyography. Sticky pad electrodes will be placed on the skin during TMS. The electrical activity of their muscles will be measured. Participants will have rTMS. It uses short bursts of magnetic pulses to affect brain activity. ASD participants may have visits scheduled as often as 1 time a week or as far apart as 2 months based on the participants or study team's availability. Healthy volunteers will have 3 visits over 3-4 weeks....

Type: Interventional

Start Date: Jun 2021

open study

Development of Magnetic Resonance Spectroscopic Imaging Techniques for Imaging Metabolites in Human1
National Institute of Mental Health (NIMH) Brain Mapping Healthy Volunteer
Background: - Magnetic resonance imaging (MRI) is a widely used scanning technique to obtain images of the human body and evaluate activity in the brain. A particular MRI method called magnetic resonance spectroscopy (MRS) can be used to study brain chemistry as well, which may help researchers wh1 expand

Background: - Magnetic resonance imaging (MRI) is a widely used scanning technique to obtain images of the human body and evaluate activity in the brain. A particular MRI method called magnetic resonance spectroscopy (MRS) can be used to study brain chemistry as well, which may help researchers who are studying new treatments for psychiatric illnesses. Researchers are interested in improving current MRI and MRS techniques, as well as developing new MRI and MRS techniques to view and measure brain chemicals and brain activity. Objectives: - To implement, develop, and optimize brain chemistry imaging techniques using magnetic resonance imaging and magnetic resonance spectroscopy. Eligibility: - Healthy individuals between 18 and 65 years of age. Design: - This study will involve a screening visit and a scanning visit at the National Institutes of Health Clinical Center. - Participants will be screened with a full medical and physical examination, blood and urine tests, and neurological testing. - During the second visit, participants will have an MRI scan of the brain. (Participants who have received an MRI within the past year will not need to have a second one; the images of the previous scan will be used for this study.) All participants will then have an MRS scan using the same scanning equipment.

Type: Interventional

Start Date: Jan 2011

open study

Trial of Allogeneic Reduced-Intensity, HLA-Haploidentical Allogeneic Hematopoietic Cell Bone Marrow1
National Cancer Institute (NCI) HIV Hematologic Malignancies
Background: People living with HIV(PLWH) are at a higher risk for cancers that may be curable with a bone marrow transplant. HIV infection itself is no longer a reason to not get a transplant, for patients who otherwise have a standard reason to need transplant. Objective: This study is being do1 expand

Background: People living with HIV(PLWH) are at a higher risk for cancers that may be curable with a bone marrow transplant. HIV infection itself is no longer a reason to not get a transplant, for patients who otherwise have a standard reason to need transplant. Objective: This study is being done to see if a new combination of drugs (cyclophosphamide, maraviroc, and bortezomib) is both safe and effective at protecting against graft-versus-host disease after bone marrow transplant. The study will also test the transplant s impact on your survival and control of your cancer. Eligibility: People aged 18 years and older living with HIV and a blood cancer that is eligible for a transplant. Healthy family members aged 12 or older who are half matched to transplant recipients are also needed to donate bone marrow. Design: The study will be done in 2 phases. The first phase will be to see if we can safely use a new combination of drugs to prevent GVHD. If the combination is safe in the first phase, the study will proceed to the second phase. In the second phase, we will see if this new combination can better protect against GVHD after transplant. Participants will be screened. Their diagnoses, organ function and eligibility will be confirmed. Participants will have a catheter inserted into a vein in their chest or neck. Medications and transfusions will be given through the catheter; blood will be drawn from it. Participants will be in the hospital for 6 weeks or longer. They will receive various drugs for 2 weeks to prep their body for the transplant. The transplant cells will be administered through the catheter. Participants will continue to receive drug treatments after the transplant. Blood transfusions may also be needed. Participants will return 1-2 times per week for follow-up visits for 3 months after discharge. Participants will have visits 6, 12, 18, 24 months after transplant, then once a year for 5 years.

Type: Interventional

Start Date: Jan 2023

open study

Tissue Procurement and Natural History Study of Patients With Malignant Mesothelioma
National Cancer Institute (NCI) Mesothelioma Thymoma Pancreatic Neoplasms Biliary Tract Neoplasms Stomach Neoplasms
Background: - Malignant mesothelioma is a malignancy arising from the mesothelial cells of the pleura, peritoneum, pericardium, or tunica vaginalis. - Mesothelioma accounts for 0.10% of deaths annually in the United States. Malignant pleural mesothelioma is the most common of thes1 expand

Background: - Malignant mesothelioma is a malignancy arising from the mesothelial cells of the pleura, peritoneum, pericardium, or tunica vaginalis. - Mesothelioma accounts for 0.10% of deaths annually in the United States. Malignant pleural mesothelioma is the most common of these, comprising of 80% of the cases with an annual incidence of about 2,500 in the United States. - The median survival from diagnosis of pleural mesothelioma is approximately 12 months. The majority of patients present with stage III or IV disease with 85-90% of patients considered unresectable at diagnosis. - Peritoneal mesothelioma has a better prognosis than pleural mesothelioma; nevertheless, patients undergoing therapy for peritoneal mesothelioma have few well-studied treatment options due in large part to the rarity of the disease. Objectives: -To allow sample acquisition for use in the study of mesothelioma. Eligibility: - All patients age greater than or equal to 2 years with malignant mesothelioma - Must be able and willing to provide informed consent if 18 or over; parent or guardian must be able and willing to provide consent for patients under the age of 18 Design: - Up to 1000 subjects will be enrolled. - Patients will be followed to determine the course of disease and to record any treatment received for mesothelioma. - Patients will undergo sampling of blood, urine, tumor and abnormal body fluids for tissue banking. - Studies which may be performed on banked material include genetic and genomic studies, establishment of cell cultures and immunologic studies.

Type: Observational

Start Date: Sep 2013

open study

Blood Sampling Pre- and Post-Propofol Administration to Characterize the Blood Proteome Using Diffe1
National Institutes of Health Clinical Center (CC) Critically Ill Surgical Patients
Background: Propofol is a drug that helps people fall asleep quickly and stay asleep during surgery, so they do not feel any pain. This drug is also used to sedate critically ill people who must be on a ventilator (a machine to help them breathe). To better understand how to interpret blood tests1 expand

Background: Propofol is a drug that helps people fall asleep quickly and stay asleep during surgery, so they do not feel any pain. This drug is also used to sedate critically ill people who must be on a ventilator (a machine to help them breathe). To better understand how to interpret blood tests in these ill people, researchers need to know more about how the drug itself may change proteins in the blood. Objective: To collect blood samples from people before and after propofol is administered for surgery. Eligibility: People aged 18 years or older who are scheduled for surgery that requires sedation with propofol. Design: Participants will have data collected. This data will include age, sex, and ethnicity. They will be asked about their medical history. Participants will have blood samples collected before and after they receive propofol for their surgery. The blood will be collected from lines already installed for the surgery; no new needlesticks will be done for the study. A total of 3 teaspoons of blood will be drawn. The samples will be compared to each other to look for any changes caused by the drug. No follow-up visits are required.

Type: Observational

Start Date: Feb 2026

open study

Environment and Alcohol: A Pilot Study
National Institute on Drug Abuse (NIDA) Alcohol Use Disorder
Background: Alcohol use disorder (AUD) is a chronic disease that causes more than 140,000 US deaths each year. AUD treatment often includes therapy and medication. Some people with AUD may also benefit from behavioral and lifestyle changes. Objective: To evaluate the effects of different activit1 expand

Background: Alcohol use disorder (AUD) is a chronic disease that causes more than 140,000 US deaths each year. AUD treatment often includes therapy and medication. Some people with AUD may also benefit from behavioral and lifestyle changes. Objective: To evaluate the effects of different activities and environments on drinking behaviors and mental health in people with AUD. Eligibility: People aged 21 years and older with AUD. Design: Participants will have up to 10 study visits in Baltimore. Participants will have a baseline visit. They will have a physical exam with blood and urine tests. They will have a breath test for alcohol and a test that measures body composition. They will answer questions about their alcohol and substance use; mental and physical health; mood and anxiety; and sleep quality. Participants will download an app called MetricWire. The app will send 3 sets of questions to be answered at different times throughout the day. The study visits will include 2 stages: 1. Active stage. On these visits, participants will use a virtual reality system called the Meta Quest Pro (MQP) as they choose. Then they may choose among video games, puzzles, books, crafts, and other activities.. These sessions will last for 3 hours. 2. Passive stage. On these visits, participants will watch videos selected by the research team. These sessions will last for 3 hours. On the last visit of each stage, participants will sit in a room that looks like a bar. They will answer questions about their cravings, their urge to drink, and how many drinks they would buy. Participants will be served 1 drink containing alcohol. They will be asked about their cravings and subjective effects of alcohol after drinking it.

Type: Interventional

Start Date: Apr 2026

open study

Natural History, Pathogenesis and Outcome of Melorheostosis A Rare Osteosclerotic Disease
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) Rheumatic Disease
Background: - The rare disease melorheostosis causes bones to thicken. This may lead to pain, and can affect bones, joints, and muscles. Researchers want to learn more about the disease and how it progresses. Objective: -To see what happens to people with melorheostosis over time and understand1 expand

Background: - The rare disease melorheostosis causes bones to thicken. This may lead to pain, and can affect bones, joints, and muscles. Researchers want to learn more about the disease and how it progresses. Objective: -To see what happens to people with melorheostosis over time and understand the causes of the disease. Eligibility: - People 18 and over with melorheostosis. - Their unaffected relatives. Design: - All participants will have a medical history and physical exam. - Participants who are relatives will give samples of blood or cheek cells. - Other participants will be in the study for about 1 week. - They will have blood and urine collected. - Strength, walking, and range of motion will be measured. - Participants may also have - X-rays and scans. - A pain and neurological evaluation. - Their skin evaluated by a dermatologist. - A small sample of bone taken. - Nerve conduction studies. Small electrodes with to wires will be put on the skin. A metal probe will give a small electrical shock. - Electromyography. A thin needle will be placed into the muscles. - An ultrasound, which uses sound waves to examine the muscles and nerves. An ultrasound probe will be placed over the skin. - A bone scan. They will get a small amount of radioactive fluid through a needle in an arm vein. This fluid travels to the bones. The bones will be photographed in a machine. - Bone Densitometry, a low-level x-ray. - Photographs taken. - A small circle of skin removed with a surgical instrument. - Questionnaires about their quality of life. - Participants will be asked to return about every 2 years. At these visits, participants may have blood and urine tests and x-rays.

Type: Observational

Start Date: Aug 2015

open study

Clinical and Genetic Evaluation of Individuals With Undiagnosed Disorders Through the Undiagnosed D1
National Human Genome Research Institute (NHGRI) Genetic Disease
Without an explanation for severe and sometimes life-threatening symptoms, patients and their families are left in a state of unknown. Many individuals find themselves being passed from physician to physician, undergoing countless and often repetitive tests in the hopes of finding answers and insig1 expand

Without an explanation for severe and sometimes life-threatening symptoms, patients and their families are left in a state of unknown. Many individuals find themselves being passed from physician to physician, undergoing countless and often repetitive tests in the hopes of finding answers and insight about what the future may hold. This long and arduous journey to find a diagnosis does not end for many patients- the Office of Rare Diseases Research (ORDR) notes that 6% of individuals seeking their assistance have an undiagnosed disorder. In 2008, the National Institutes of Health (NIH) Undiagnosed Diseases Program (UDP) was established with the goal of providing care and answers for these individuals with mysterious conditions who have long eluded diagnosis. The NIH UDP is a joint venture of the NIH ORDR, the National Human Genome Research Institute Intramural Research Program (NHGRI-IRP), and the NIH Clinical Research Center (CRC) (1-3). The goals of the NIH UDP are to: (1) provide answers for patients with undiagnosed diseases; (2) generate new knowledge about disease mechanisms; (3) assess the application of new approaches to phenotyping and the use of genomic technologies; and (4) identify potential therapeutic targets, if possible. To date, the UDP has evaluated 3300 medical records and admitted 750 individuals with rare and undiagnosed conditions to the NIH Clinical Center. The NIH UDP has identified more than 70 rare disease diagnoses and several new conditions. The success of the NIH UDP prompted the NIH Common Fund to support the establishment of a network of medical research centers, the Undiagnosed Diseases Network (UDN), for fiscal years 2013-2020. The clinical sites will perform extensive phenotyping, genetic analyses, and functional studies of potential disease-causing variants. The testing performed on patients involves medically indicated studies intended to help reach a diagnosis, as well as research investigations that include a skin biopsy, blood draws, and DNA analysis. In addition, the UDN will further the goals of the UDP by permitting the sharing of personally identifiable phenotypic and genotypic information within the network. By sharing participant information and encouraging collaboration, the UDN hopes to improve the understanding of rare conditions and advance the diagnostic process and care for individuals with undiagnosed diseases.

Type: Observational

Start Date: Sep 2015

open study

Community Connections Through Native Hawaiian Cultural Values to Strengthen Youth Resilience, Healt1
Waianae Coast Comprehensive Health Center Chronic Disease Adolescent Asthma Obesity & Overweight Youth Mental Health Youth Obesity
The goal of this pilot clinical trial is to learn if a community referral program can improve services for youth with mental health and chronic health conditions in a predominantly Native Hawaiian and Pacific Islander community. The main questions the trial aims to address are: - What is the be1 expand

The goal of this pilot clinical trial is to learn if a community referral program can improve services for youth with mental health and chronic health conditions in a predominantly Native Hawaiian and Pacific Islander community. The main questions the trial aims to address are: - What is the best way for a community health center to connect youth with community programs rooted in cultural practices and traditions? - Does participation in community programs engage youth and mental health and chronic health outcomes? Participants will: - Participate in a community program for youth that will strengthen connection to 'āina (land) and culture. Programs in the summer are 5 hours per day, 4 days a week, for 4 weeks. Programs in the school-year are 2.5 hours per day, 2 days a week, for 16 weeks. - Take surveys on their demographics, general well-being, mental health, and chronic health conditions they may have at 4 different times: Before the program begins, immediately after the program finishes, 3-4 months after finishing, and 6-8 months after finishing. - Have an adult family member complete surveys on their youth's demographics and general well-being at the same 4 times

Type: Interventional

Start Date: Apr 2026

open study

Intensive Case Management Between VA and Community Care for Suicide Prevention
VA Eastern Colorado Health Care System Suicidal Ideation Mental Health Issue Social Determinants of Health
The goal of this randomized clinical trial is to build the evidence base for SUPERCEDE, a suicide prevention focused intensive case management intervention to increase access, improve care coordination, provide suicide prevention monitoring, and procure a timely response of VA mental health and sui1 expand

The goal of this randomized clinical trial is to build the evidence base for SUPERCEDE, a suicide prevention focused intensive case management intervention to increase access, improve care coordination, provide suicide prevention monitoring, and procure a timely response of VA mental health and suicide prevention services among VA-enrolled veterans receiving VA authorized community care. This phase is a hybrid effectiveness Type 1 randomized control trial, which will include 2 arms: the treatment intervention, SUPERCEDE, and the control intervention, present centered therapy. The main questions it aims to answer are:• This RCT will continue to build the evidence base for effectiveness and determine feasibility and acceptability for the previously piloted SUPERCEDE. • This RCT will improve the understanding of implementation of this intervention, both in VA and VA authorized community care organizations in preparation for broader implementation. Researchers will compare SUPERCEDE and present centered therapy to see if SUPERCEDE results in improved functioning and a decrease in suicidal ideation. Participants will be randomized to either SUPERCEDE or present centered therapy (PCT) plus a safety plan if warranted. SUPERCEDE is a suicide prevention case management intervention that combines BCBT-SP, a Crisis Response Plan (CRP), intensive case management to alleviate suicide risk factors, and VA authorized community care coordination. PCT is an active control condition often used in clinical trials of posttraumatic stress disorder. The intervention focuses on the present moment and encouraging the client to find solutions to their problems. In this trial, investigators will mirror the sessions of PCT to SUPERCEDE. Thus, the control group will receive 3 sessions, with an optional 3 additional sessions. Detailed Description For hypothesis 3a: Overall, 100 participants will be randomized to either SUPERCEDE or present centered therapy (PCT) plus a safety plan if warranted. SUPERCEDE is a suicide prevention case management intervention that combines BCBT-SP, a Crisis Response Plan, intensive case management to alleviate suicide risk factors, and VA authorized community care coordination. PCT is an active control condition often used in clinical trials of posttraumatic stress disorder. The intervention focuses on the present moment and encouraging the client to find solutions to their problems. In this trial, investigators will mirror the sessions of PCT to SUPERCEDE. Thus, the control group will receive 3 sessions, with an optional 3 additional sessions. The study therapist is trained in both SUPERCEDE and PCT. Recruitment. Eligible participants will be identified through the VA Rocky Mountain Regional (RMR) Medical Center the VA Corporate Data Warehouse (CDW), flyers and advertisements, or through clinician or community referral. A recruitment letter will be sent to participants identified in the CDW. Investigators will attempt to contact potential participants with a warm call by telephone (up to 3 times) after the letter is sent.

Type: Interventional

Start Date: Aug 2024

open study

Testing Conversational Agents as a Digital Companion
Friendi.fi Corporation Autism
There is a need and opportunity to improve the supports, transitions, and life outcomes of people with autism spectrum disorder. Compared to their neurotypical peers, autistic teenagers and adults report poorer mental health and quality of life and have higher rates of unemployment or underemployme1 expand

There is a need and opportunity to improve the supports, transitions, and life outcomes of people with autism spectrum disorder. Compared to their neurotypical peers, autistic teenagers and adults report poorer mental health and quality of life and have higher rates of unemployment or underemployment and low participation in post-secondary education. Nearly 40% spend little or no time with friends. Although autism awareness has grown considerably in recent decades, much more can be done to improve the life outcomes for people with autism. Cost-effective, affordable and scalable support systems are needed as well as ongoing assessments and personalized support plans that focus on individual strengths and challenges in different contexts (college, work, community life) across the life span. This requires adaptive interventions and regular consultation with and between stakeholders. It also requires a rigorous approach to measuring outcomes that are not one-size-fits-all and do not expect everyone to reach, or have, the same goals. To meet these needs, the investigators leverage an already successful technology platform with two conversational-relational agents to be a digital companion and coach to autistic young adults (AYA, ages 18 to 35 years). The technology will be used to scale a strong theoretical and conceptual approach that has proven successful in meeting the individual needs and personalized outcomes of autistic students through a collaborative consultation model for promoting competency and success (COMPASS) combined with Goal Attainment Scaling (GAS). To deliver personalized coaching, empathy, and outcomes at scale, GAS/COMPASS was translated into software-driven evidence-based coaching protocols in collaboration with clinical, academic, and community partners. In this study, the digital coaching program and all research protocols are pilot tested in a 10-week experiential trial with AYA.

Type: Interventional

Start Date: Mar 2026

open study