Background: Research has identified some of the genes involved in inherited eye diseases. But for many of these diseases, the genes are not yet known. Researchers want to try to find these genes. They also hope to learn more about how symptoms differ in people with similar gene changes. Objective: To learn more about genes involved in eye diseases. Eligibility: People who have a known or suspected inherited eye disease, and their relatives. Design: - All participants will have a medical history, physical exam, and eye exam. They will have blood taken. - Participants with an eye disease may have eye cell samples taken using a swab or biopsy procedure. - Participants may have a skin biopsy. A 3mm piece of skin will be removed. - Participants may provide samples of tears, urine, saliva, stool, hair, or inner cheek cells. - Participants may have a retina test. They may also have a test that uses light to measure retina thickness. - Participants may have an eye movement test. Electrodes will be placed on the skin next to both eyes. - Participants may have a fluorescein angiography. A dye will be given through an intravenous line in the arm. A camera will take pictures of the dye as it flows through the eyes blood vessels. - Participants may have microperimetry. They will sit at a computer screen and press a button when they see a light. - Participants may have an eye movement test. They will wear contact lenses or goggles and watch a series of spots on a computer screen. - Participants may complete a color vision test. - Participants will provide a specimen for genetic testing. - Participants may have a MRI. - Participants may complete questionnaires.

Type: Observational

Start Date: Jun 2015

open study

Objective: Human T-lymphotropic virus type-I-associated myelopathy / tropical spastic paraparesis (HAM/TSP) is a rare neurologic disorder that affects less than 5% of patients infected with the HTLV-I virus. The purpose of this protocol is to study the natural history of HAM/TSP by monitoring clinical progression of patients longitudinally. Additionally, we will attempt to define the virological and immunological changes of HAM/TSP. Study Population: Patients with HAM/TSP who fulfill World Health Organization diagnostic criteria are eligible to participate in this protocol. Asymptomatic seropositive individuals and individuals with indeterminate HTLV-1 serology are also eligible to participate. Design and Outcome Measures: A longitudinal assessment of clinical, virological and immunological progression in HAM/TSP will be accomplished through periodic testing and evaluation. Asymptomatic seropositive individuals, those with seroindeterminate HTLV-I serology and normal volunteers may serve as controls. Longitudinal standardized neurological examinations will be performed. Longitudinal samples of serum, plasma, and lymphocytes may be obtained from participants. Lumbar punctures may be performed on all participants. These samples will be used virological and immunological assays. A focus is on the relationships between the characteristics of viral infection, the immune response, and the genetic makeup. ...

Type: Observational

Start Date: Apr 1998

open study

The protocol will be carried out in accordance with International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) Good Clinical Practice (GCP) and the following United States Code of Federal Regulations (CFR) applicable to clinical studies: 45 CFR Part 46, 21 CFR Part 50, 21 CFR Part 56, 21 CFR Part 312, and/or 21 CFR Part 812. NIH-funded investigators and study site staff who are responsible for the conduct, management, or oversight of NIH-funded studies have completed Human Subjects Protection and ICH GCP Training. The protocol, informed consent form(s), recruitment materials, and all participant materials will be submitted to the Institutional Review Board (IRB) for review and approval. Approval of both the protocol and the consent form must be obtained before any participant is enrolled. Any amendment to the protocol will require review and approval by the IRB before the changes are implemented to the study. In addition, all changes to the consent form will be approved by the IRB; an IRB determination will be made regarding whether a new consent needs to be obtained from participants who provided consent, using a previously approved consent form.

Type: Observational

Start Date: Apr 1993

open study

Background: Neurofibromatosis type 1 (NF1) is a genetic condition that causes tumors to grow along the nerves in the skin, brain, and other parts of the body. People with NF1 often have pain and may experience other abnormal sensations like itching, numbness, or tingling. These symptoms can affect their daily life. Researchers want to learn more about these symptoms and find better ways to measure pain in people with NF1. Objective: To learn if a device called the AlgometRx Nociometer(Registered trademark) is effective in measuring pain or other abnormal sensations in people with NF1. Eligibility: People aged 1 year and older with NF1. Design: Individuals can have up to 3 assessments completed in person. Each assessment may last up to 1.0 to 1.5 hours. Individuals will be screened. They will complete questionnaires about their health and how bad their pain is. If participants are having blood drawn for other reasons, some additional samples may be used in this study. The AlgometRx Nociometer includes an electrode that will be placed onto a finger or a toe. The electrode will send non-painful electrical signals to activate nerves in the finger or toe. At the same time, a camera will be used to record changes in the pupil of the eye. The test will be done on all 4 of the participant s limbs; however, researchers may skip 1 or more limbs for various reasons. This test takes about 10 seconds to complete with at least a one-minute rest between testing different limbs. Individuals will be asked to do a 2nd assessment with the AlgometRx Nociometer that may be done 1 hour later but no more than 72 hours after the first assessment. Participants who will be returning for another visit can opt to do a 3rd assessment that will be done at least 4 weeks but not more than 18 months after the 1st....

Type: Interventional

Start Date: Feb 2026

open study

This study will collect white blood cells and plasma for research on how the immune system controls HIV infection. The immune system of a very small group of people with HIV, called non-progressors, has been able to control HIV for long periods without antiretroviral therapy. Some immune system-related genes important for this control have been identified in these patients. People living with HIV who are 18 years of age and older, documented or suspected long-term nonprogressors in generally good health may be eligible to screen for the study. Participants will undergo apheresis (a method for collecting larger quantities of certain blood components than can safely be collected through a simple blood draw) if venous access is adequate once yearly. Some may be asked to return every six months. - Automated apheresis - Blood is drawn through a needle placed in an arm vein and spun in a machine, separating the blood components. The white cells are extracted and the red cells, with or without plasma (liquid part of the blood), are re-infused into the donor through a needle in the other arm. An anticoagulant (medication to prevent blood from clotting) is usually added to the blood while in the machine to prevent it from clotting during processing. - Blood draw - a needle placed in an arm vein for large volume (approx 75ml) blood draw if veins considered inadequate for apheresis procedure. Some of the blood collected through apheresis may be stored for future studies of HIV disease and immune function and for HLA testing, a genetic test of markers of the immune system. ...

Type: Observational

Start Date: Aug 2001

open study

This study will examine the symptoms, course of disease and treatment of non-tuberculous mycobacterial (NTM) infections, as well as the genetics involved in these infections. Patients with NTM have recurrent lung infections and sometimes infections of the skin and other organs as well. They may also have curvature of the spine, barrel chest, and heart valve weakness. The study will compare the features of NTM with those of Job syndrome and cystic fibrosis, other diseases involving recurrent infections of the lungs and possibly other organs. Patients with diagnosed or suspected non-tuberculous mycobacterial infection, cystic fibrosis or Job syndrome may be eligible for this study. All participants will have a medical and family history, blood and urine tests, imaging studies that may include X-rays, computed tomography (CT) or magnetic resonance imaging (MRI) scans, and DNA and other genetic studies. In addition, all patients with Job syndrome and cystic fibrosis, and patients with NTM who have lung disease undergo the following procedures: - Scoliosis survey X-rays of the spine to look for curvature or other abnormalities of the spinal column - Echocardiography imaging test that uses sound waves to examine the heart chambers and valves - Electrocardiogram measurement of the electrical activity of the heart - Pulmonary function tests breathing tests to measure how much air the patient can move into and out of the lungs - Body measurements measurements of height, weight, arm span, finger length, etc. - Joint function assessment of joint mobility using different maneuvers to test flexibility of joints and ligaments - Examination of physical features that might be associated with NTM, such as high arched palate of the mouth, flat feet, or certain skin features - Dermatology (skin) examination for reactive skin conditions or other skin problems and possibly a skin biopsy (surgical removal of a small skin tissue sample for microscopic examination) - Interview with genetics specialist These tests may require several days to complete. Patients with NTM will also be examined by a cystic fibrosis specialist and may have a sweat test. In addition, NTM patients will be asked to return to NIH every year for 5 years for follow-up tests, if medically indicated, including CT of the chest, scoliosis survey and examination by other specialists.

Type: Observational

Start Date: Jan 2001

open study

This is a single-center, prospective observational study in patients undergoing cesarean delivery under spinal or combined spinal-epidural anesthesia. It compares whether continuous noninvasive hemodynamic measurements from the lower extremity (toe) better predict neonatal outcomes than upper extremity (arm/finger) measurements during spinal-induced hypotension. Participants receive standard spinal anesthesia and routine blood pressure management, with additional monitoring using the ClearSight™ system at both upper and lower extremities from before spinal anesthesia through delivery. The primary outcome is a composite of neonatal outcomes (APGAR scores, need for respiratory support, cord gases, and NICU admission). Secondary outcomes include maternal side effects and comfort. Overall, the study evaluates whether lower-extremity hemodynamic monitoring improves detection of clinically relevant hypotension and prediction of neonatal outcomes compared to traditional arm measurements.

Type: Observational

Start Date: Feb 2025

open study

The goal of this pilot clinical trial is to learn if a digital intervention to improve sun safety, Sun Safe Together (SST), is feasible and acceptable to teenagers and their parents.

Type: Interventional

Start Date: Jun 2026

open study

The study will collect clinical data on patients who receive the Caris Chromoseq assay for an underlying hematologic malignancy. The assay provides risk stratification for patients with acute myeloid leukemia (AML) myelodysplastic syndrome (MDS), or myeloproliferative neoplasms (MPN). The hypothesis of the study is that Caris Chromoseq compares favorably to conventional cytogenetics, FISH, and NGS analysis in terms of risk stratification capabilities, ease of use, and turnaround time.

Type: Observational

Start Date: Jul 2026

open study

This is a Phase II, single-center (Cleveland Clinic), two-arm, randomized, parallel-group superiority trial. The two arms will compare IOUS-guided margin selection against standard macroscopic margin selection in patients undergoing ileocolic resection for terminal ileal Crohn's disease. Patients and outcome assessors (pathologists, endoscopists) will be blinded to the intervention arm, while surgeons, by the nature of the intervention, cannot be blinded. Randomization will be computer-generated with concealed allocation using permuted blocks to ensure balanced group sizes.

Type: Interventional

Start Date: Jul 2026

open study

This is a prospective pilot study of breast cancer patients undergoing axillary lymph node dissection (ALND) or sentinel lymph node biopsy (SLNB). Participants will undergo ultra-high frequency ultrasound (UHFUS) imaging with indocyanine green (ICG) dye to map lymphatic channels between the wrist and elbow to investigate normal lymphatic anatomy in patients with breast cancer.

Type: Interventional

Start Date: Jun 2026

open study

The goal of the Clonal Hematopoiesis Chemotherapy and Radiation Effects (CH CARE) Study is to understand how the presence or absence of clonal hematopoiesis (CH) influences outcomes in people receiving chemotherapy and radiation for solid cancers. The study will collect biospecimens and clinical information. These data will be used to define clinical and molecular features that predict the presence of high-risk clonal hematopoiesis (CH) in patients exposed to cytotoxic anti-cancer therapy. Predictive features will be utilized to identify populations of cancer patients and survivors who are at the highest risk of developing therapy-related myeloid neoplasms (t-MNs). Ultimately this study will result in the development of a novel novel risk prediction algorithm for t-MNs in patients with solid cancers and drive potential therapeutic approaches to intercept progression from CH to often fatal t-MNs.

Type: Observational

Start Date: Apr 2025

open study

REVIVE is a randomized controlled trial designed to evaluate the effects of a remotely delivered seated Tai Chi/Qigong (TCQ) intervention on cardiometabolic health, stress, sleep, and psychological well-being among women with mobility impairments. Women with mobility impairments experience higher rates of obesity, cardiometabolic disease, chronic stress, sleep disturbances, and mental health concerns compared with women without disabilities. Limited access to accessible physical activity programs and barriers to participation in traditional exercise interventions contribute to these health disparities. Tai Chi and Qigong are gentle mind-body practices that may improve physical and psychological health through movement, breathing, and mindfulness techniques and can be adapted for individuals with limited mobility. Participants will be randomized to either a seated Tai Chi/Qigong intervention or a health education video control condition. During the 12-week intervention phase, participants will receive daily video-based content delivered remotely. Participants assigned to the Tai Chi/Qigong group will engage in seated meditative movement practices, while participants assigned to the control group will receive health and wellness education videos unrelated to physical activity or nutrition behavior change. Outcomes will be assessed remotely at baseline, post-intervention, and follow-up. Primary outcomes include waist circumference and indicators of physiological stress regulation, including heart rate variability and salivary cortisol. Secondary outcomes include perceived stress, emotion regulation, depression, anxiety, emotional eating, sleep quality, and sleep disturbance. Additional measures collected through wearable technology, sleep diaries, questionnaires, and biological samples will be used to examine potential behavioral, psychological, and physiological mechanisms underlying intervention effects. The findings from this study will contribute to the development of accessible, scalable, and evidence-based health promotion interventions designed to improve cardiometabolic health and overall well-being among women with mobility impairments.

Type: Interventional

Start Date: Jul 2026

open study

The objective of this study is to assess the safety, tolerability, pharmacokinetics, and immunogenicity of single and multiple doses of ABBV-313 in healthy adult participants.

Type: Interventional

Start Date: Jun 2026

open study

The goal of this clinical trial is to learn if the FlowMD mobile app is feasible to be used to manage mild anxiety in adults. It will also learn if the app is effective at managing anxiety in adults. Participants will: Use the FlowMD app daily to complete a 1-5 minute guided breathwork session over the course of 4 weeks. Complete surveys at the beginning, midpoint, and end of the study to measure anxiety levels and usability of the app.

Type: Interventional

Start Date: Oct 2025

open study

The purpose of this study is to compare same-day discharge rates and recovery outcomes across an adult patient population undergoing elective Total Knee Arthroplasty (TKA), and randomized to receive either spinal block anesthesia or Total IntraVenous Anesthesia (TIVA). Primary Aim: assess same-day discharge rates between study arms (TIVA vs spinal). Secondary Aim: Postoperative comparison of recovery during PostOperative Anesthesia Care Unit (PACU) admission, diagnostic assessment scores; outcomes related to cognition, hemodynamic stability, pain, nausea and vomiting; analysis of IntraOperative electroencephalogram (EEG) monitoring metrics, e.g., total suppression time, average Bi-spectral Index monitor (BIS) value, Spectral Edge Frequency (SEF); ability for Physical Therapy (PT) evaluation prior to discharge; longterm-followup (LTFU), hospital readmission, return to surgery, etc.; adverse event (AE) monitoring.

Type: Interventional

Start Date: Mar 2026

open study

The goal of this clinical trial is to determine safety, tolerability, pharmacokinetics, preliminary efficacy, and Maximum Tolerable Dose (MTD), of intralesional FLD-103 when administered to subjects with Basal Cell Carcinoma (BCC). The main questions it aims to answer are: - Is FLD-103 safe and well tolerated? - What is a safe dose of FLD-103 for future studies? - How much FLD-103 enters the bloodstream and how long does it take to be cleared from the body? - Does FLD-103 reduce the size of the tumor? Participants will: - Receive either a Single Ascending Dose (SAD) of FLD-103 or Multiple Ascending Doses (MAD) of FLD-103 once weekly for four (4) weeks. - Visit the clinic a day after receiving a dose and once weekly for four (4) weeks after that for checkups and tests.

Type: Interventional

Start Date: Oct 2024

open study

The researchers will study how babies respond to bottle nipples with different flow rates over a few days, and how this may affect how much milk they drink, their feeding patterns, and their sleep.

Type: Interventional

Start Date: Jun 2026

open study

To collect information about treatment outcomes in pediatric and adolescent patients with relapsed/refractory germ cells tumors who receive GemDMC with an ASCT.

Type: Observational

Start Date: Jun 2026

open study

This pilot study proposes a clinical trial to target treatment of sensorimotor and cognitive deficits in persons with Multiple Sclerosis (pwMS). The proposal has the potential to promote neuroplasticity and induce re-normalization in brain to muscle (cortico-muscular) connectivity (BMC) and within brain connectivity via an integrative training approach. Preliminary data and published work are available to inform specific aspects of the proposed trial, along with the general rationale for exploring the suggested rehabilitation approach. However, there is a gap in research on the effects of training that uses the proposed approach via a clinical trial (of any phase) in pwMS to support the rationale for exploring the suggested rehabilitation training approach. Moreover, there is no pilot data on the training itself in the same population. This study will examine the behavioral deficits and neural characteristics in children with MS and two other related conditions (Myelin Oligodendrocyte Glycoprotein (MOG) and Nueromyelitis Optica Spectrum Disorder (NMOSD)) to understand if they would benefit from rehabilitation training conditions tested in aims 1 and 2. The overall long term goal is to improve rehabilitation training conditions for both adults and children with MS.

Type: Interventional

Start Date: Jan 2025

open study

The purpose of this study is to learn about the safety of a new pneumococcal vaccine and how the new pneumococcal vaccine helps to fight against germs that can cause pneumonia (lung infections), meningitis (brain infections), and otitis media (ear infections) in children when compared to the pneumococcal vaccine that is currently in use, 20vPnC (Prevnar 20®). This study will test if the new pneumococcal vaccine is as safe as the one that is currently in use. It will also assess how the new vaccine works in comparison to the one that is currently in use. To measure how the new pneumococcal vaccine compares to the current one, blood samples will be used to measure the body's ability to create proteins to fight those germs. This new vaccine can possibly provide additional protection against germs that cause pneumococcal disease that are not included in the vaccines that are currently given to children. Pneumococcal disease includes a variety of infections caused by a specific germ, Streptococcus pneumoniae This study is seeking participants who: - Are children aged 15 months to 18 years. - May or may not have received any doses of pneumococcal conjugate vaccine (PCV) in the past. The study will be conducted in the United States, Puerto Rico, and other countries. Participants will be assigned to 1 of 3 groups based on age: Group 1: 15 months to less than 2 years (about 300 participants) Group 2: 2 years to less than 5 years (about 300 participants) Group 3: 5 years to less than 18 years (about 600 participants) Within each group, participants will be assigned by chance in a 2:1 ratio to receive 1 vaccine injection (shot) with either PG4 (new vaccine) or 20vPnC, given in the arm or thigh. This means that for every 3 participants, about 2 will receive PG4 and about 1 will receive 20vPnC. Each participant will take part in the study for approximately 6 months. During this time, each participant will visit a clinic 2 times (visit 1 for vaccination and visit 2 to follow up) and will be contacted via telephone once (for a 6 month follow up). At the study clinic visits, participants will have their blood drawn and be asked if they have experienced any side effects. A side effect is an unintentional or unexpected reaction to a vaccine. During the 6-month follow-up contact, participants will be asked about any further side effects.

Type: Interventional

Start Date: Jun 2026

open study

This phase III trial compares the effect of the combination of aglatimagene besadenovec and pembrolizumab versus standard of care docetaxel chemotherapy for the treatment of stage IV non-squamous, non-small cell lung cancer. Aglatimagene besadenovec is a replication-deficient adenoviral vector encoding the herpes simplex virus thymidine kinase (HSV-tk) gene. When combined with an oral prodrug (valacyclovir), injection of aglatimagene induces targeted tumor cell death and stimulates a systemic immune response. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. This trial may help doctors find out if giving aglatimagene with pembrolizumab is more effective at treating patients with stage IV non-squamous, non-small cell lung cancer than standard chemotherapy.

Type: Interventional

Start Date: Jun 2026

open study

This is a multi-center study in which the performance of the Visby Medical Men's Sexual Health Test is evaluated when run by male subjects of 14 years of age and older on self-collected first catch urine samples using the audio-visual instructions provided by the Visby App and/or written instructions provided by the printed User Instructions.

Type: Observational

Start Date: Feb 2026

open study

The purpose of this study is to learn about the effects of BGE-102 on blood biomarkers including hsCRP, which is a lab value used to measure inflammation. BGE-102 decreases inflammation which may improve obesity and cardiovascular health. Participants will receive either BGE-102 or placebo. This study will be checking safety and tolerability of BGE-102.

Type: Interventional

Start Date: Jun 2026

open study

The purpose of this study is to examine the effects of resistance exercise, such as weightlifting, on retention of muscle mass and mental health in individuals taking GLP-1 RAs (an obesity medication). Resistance exercise is focused on increasing the strength of participants' muscles, such as how much participant can lift. •The duration of this study is 3 months. This includes: - Orientation session to explain study protocol, exercise program, and complete questionnaire about participants' medical history and lifestyle. - Two health assessments at baseline and at 3 months. These assessments include body composition, resting blood pressure, cardiovascular function, and muscular strength. Both the resistance exercise group and the control group will complete assessments at baseline and again at 3 months. After the 3-month period, individuals in the control group may choose to participate in the exercise training and complete the optional 6-month assessments. - Personalized resistance exercise sessions for 60 minutes per session, twice per week, for 3 months.

Type: Interventional

Start Date: May 2026

open study