Background: Diseases related to the immune system, blood clots, and blood vessels can affect every part of the body. These diseases are now known to be interrelated: People who have strokes, blood clots in their legs, or autoimmune disease, for example, are at greater risk of complications in the heart, brain, and other organs. Researchers want to learn more about how these diseases start, how they change over time, and how they affect different organs. Objective: To learn more about how inflammation and diseases of the blood vessels start and how they change over time. Eligibility: People aged 5 years and older with a disease related to blood clots, the immune system, or blood vessels. Healthy relatives of people with these diseases and unrelated healthy volunteers are also needed. Design: Participants will have a baseline visit: They will provide a medical history, physical exam and blood test. All other tests and procedures are optional; these may be spread over more than 1 day: Tests of heart and lung function. Fill in a family tree form. Imaging scans Treadmill or bike stress tests and a 6-minute walk test. Tests of blood pressure and the flow of blood through vessels. Photos of the face and body. Eye exams, with photos taken of the retina. Saliva and urine samples. Biopsies (tissues samples) of the skin and fat. Tests of thinking and mental function. Evaluations by other medical specialists. Participants may opt to return for repeat testing for up to 90 months (7.5 years). Some visits may be done by telehealth.

Type: Observational

Start Date: Nov 2024

open study

Background: People with alcohol use disorder (AUD) also often have bouts of depression called major depressive episodes (MDEs). People having MDEs have been found to have low levels of a protein called PDE4B in the brain. Researchers want to find out if people with AUD also have low levels of PDE4B. This research may help lead to better treatments for AUD. Objective: To find out (1) if PDE4B levels are lower in people who are withdrawing from AUD and (2) if their PDE4B levels go up after they abstain from alcohol for 3 to 4 weeks. Eligibility: Adults aged 18 to 70 years with AUD. They must be enrolled in protocol 14-AA-0181. Design: Participants enrolled in protocol 14-AA-0181 will stay in the clinic for 3 to 4 weeks for alcohol withdrawal. During this stay, they will have some added procedures for the current study. Within the first week, participants will have a positron emission tomography (PET) scan of the brain. A needle will be used to guide a thin plastic tube (catheter) into a vein in one arm. An experimental substance called a radioactive tracer will be injected through the catheter. This tracer binds to PDE4B and makes it easier to see the protein in the brain. For the scan, participants will lie on a table that slides into a doughnut-shaped machine. Participants will have a second PET scan toward the end of their stay in the clinic. Participants may also have a magnetic resonance imaging (MRI) scan of the brain. They will lie on a bed that slides into a tube....

Type: Interventional

Start Date: Mar 2025

open study

Background: Sickle cell disease (SCD) is a genetic disease that causes the body to produce abnormal ( sickled ) red blood cells. SCD can cause anemia and life-threatening complications in the lungs, heart, kidney, and nerves. People with SCD are also at increased risk of forming blood clots in the veins and lungs, but the standard treatments for these clots can cause increased bleeding in people with SCD. Better treatments are needed. Objective: To test a drug (fostamatinib) in people with SCD. Eligibility: People aged 18 to 65 with SCD. Design: Participants will have 6 clinic visits over 12 weeks. Each visit will be 2 to 3 hours. Participants will be screened. They will have a physical exam with blood tests. They will tell the researchers about the medications they take. Fostamatinib is a tablet taken by mouth. Participants will take the drug at home, twice a day, for up to 6 weeks. Participants will have a clinic visit every 2 weeks while they are taking the drug. At each visit they will have a physical exam with blood tests. They will talk about any side effects the drug may be causing. If they are tolerating the drug well after the first 2 weeks, they may begin taking a higher dose. Participants will have a final visit 4 weeks after they stop taking the drug. They will have a physical exam and blood tests; they will be checked for any side effects of the drug.

Type: Interventional

Start Date: Dec 2024

open study

Background: - Li-Fraumeni syndrome (LFS) is a genetic condition that increases the risk for some types of cancer. LFS may lead to cancer of the bone or connective tissue, breast, and brain. It may also increase the risk for certain types of leukemia and other cancers. The only known cause of LFS is a change (called a mutation ) in a gene known as TP53. However, not all people with LFS have a TP53 mutation. Researchers want to study other possible genetic causes of LFS, and factors that may increase or decrease cancer risk in people with the syndrome. Objectives: - To learn more about the types of cancers that occur in individuals with LFS. - To study the role of the TP53 gene in the development of cancer. - To look for other possible genes that cause LFS - To study the effect of LFS diagnosis on families. - To determine if environmental factors or other genes can change a person s cancer risk associated with LFS. Eligibility: - Individuals with a family or personal medical history of cancers consistent with LFS. - Individuals with a family or personal medical history of cancers that does not meet the diagnosis of LFS, but the history is suggestive for LFS (meets the diagnosis for the so-called Li-Fraumeni like syndrome) - Individuals with certain rare cancers - Individuals with a family or personal history of a TP53 gene mutation, with or without related cancer(s). Design: - Participants will fill out a medical history questionnaire and a family history questionnaire. - Blood samples will be collected for DNA and for storage. Cheek cell samples may be collected if blood cannot be obtained for DNA. Participants can choose to have or not have cancer screening with blood tests, imaging studies, and other exams. - Participants will complete questionnaires about their worries about cancer, stress levels, and coping strategies. Diet and physical activity questionnaires will also be given. Other psychological tests may be given as needed. - Participants will be monitored for several years, with regular followup visits to the National Institutes of Health, if indicated. Any changes in health or cancer status will be recorded.

Type: Observational

Start Date: Jan 2012

open study

The goal of this clinical trial is to determine if NTB-928 can be given safely to adult females with ovarian cancer that has come back (relapsed) or stopped responding to treatment (refractory), how NTB-928 moves through the body, and how the immune system reacts to it. The study will also look for early signs of anti-cancer activity of NTB-928. The main questions the study aims to answer are: - What side effects do participants experience when receiving NTB-928, including side effects that limit how much of it can be safely given? - How is NTB-928 processed by the body at different dose levels? - Does the immune system react to NTB-928 during treatment? - What dose of NTB-928 can be given safely that shows early signs of activity against ovarian cancer?

Type: Interventional

Start Date: Jun 2026

open study

The goal of this clinical trial is to determine the effect of maximal mental effort combined with low-intensity resistance training on strength and neuromuscular function in older adults. The main questions it aims to answer are: - Does low-intensity resistance training in combination with maximal mental effort increase strength more than low intensity resistance training alone? - Does low-intensity resistance training in combination with maximal mental effort improve neuromuscular function more than low intensity resistance training alone? Participants will be randomly assigned to 1 of 3 groups: - Low intensity resistance training - Low intensity resistance training with maximal mental effort - Control Researchers will compare groups to determine differences in changes in strength, neuromuscular function, and body composition.

Type: Interventional

Start Date: Jun 2026

open study

This study aims to characterize current treatment patterns and clinical outcomes among newly diagnosed GEP-NET patients in the United States using open-source Longitudinal Prescription Claims (LRx) and Patient Centric Medical Claims (Dx) databases supplemented with mortality data.

Type: Observational

Start Date: Jun 2026

open study

The aim of this trial is to demonstrate similarity in efficacy between ABP 938 8 mg and aflibercept (US) 8 mg by evaluating the change in best corrected visual acuity (BCVA) in participants with neovascular age-related macular degeneration (nAMD)

Type: Interventional

Start Date: May 2026

open study

The goal of this pilot study is to learn if a revised method of compression improves lymphatic function compared to the current method of compression. The main questions: • Does the revised method of compression improve lymph movement and lymphatic propulsion?

Type: Interventional

Start Date: Jul 2026

open study

This study will test a study drug called REGN20934 to see how safe and well tolerated this drug is, as well as how the drug is processed in the body for participants with overweight or obesity. The study is looking at: - What side effects REGN20934 might cause - How much REGN20934 is in the blood at different times - If the body makes antibodies to REGN20934

Type: Interventional

Start Date: Jun 2026

open study

Diabetic Retinopathy (DR) is a common eye condition caused by diabetes, where high blood sugar levels damage the blood vessels in the back part of the eye (called the retina). Over time, this damage can lead to vision problems and even blindness if not treated. This study will assess surabgene lomparvovec (sura-vec) as a potential one-time gene therapy administered in the suprachoroidal space (SCS) for the treatment of diabetic retinopathy (DR) and prevention of vision-threatening events (VTEs) in participants with non-proliferative DR (NPDR) without center-involved diabetic macular edema (CI-DME). This study will consist of 3 portions: a Phase 2b portion, a Phase 3 portion, and a bilateral treatment portion. Approximately 576 adult participants will be enrolled in the study across multiple sites in the United States and Puerto Rico. In the Phase 2b and Phase 3 portions, participants will be randomized to different groups to receive sura-vec and prophylactic steroids or sham and artificial tears in their study eye. If assigned to sham, participants will be given an opportunity to cross over and receive treatment with sura-vec. In the bilateral treatment portion, participants will be enrolled to receive sura-vec and prophylactic steroids in both eyes. In all 3 portions, follow-up in the study will continue through 5 years following administration of sura-vec in each eye. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Type: Interventional

Start Date: Jun 2026

open study

The purpose of this study is to assess how well JNJ-78934804 works (efficacy) and how safe it is (safety) as compared to guselkumab at Week 48 in participants with moderately to severely active ulcerative colitis (UC, a chronic disease of the large intestine in which the lining of the colon becomes inflamed and develops ulcers).

Type: Interventional

Start Date: May 2026

open study

This Expanded Access Program (EAP) is intended to provide daraxonrasib to eligible adult patients with previously treated metastatic pancreatic adenocarcinoma, who have no comparable or satisfactory alternative therapy and are unable to participate in an ongoing daraxonrasib clinical trial.

Type: Expanded Access

open study

The main purpose of this study is to assess how well the study drug (JNJ-42847922) works (efficacy) compared with placebo in improving depressive symptoms in participants with major depressive disorder ([MDD], a common mood disorder that causes a lasting feeling of sadness and a loss of interest in everyday activities) in double-blind treatment phase. Further, to evaluate long-term safety and tolerability of JNJ-42847922 in participants with MDD in the open label treatment phase.

Type: Interventional

Start Date: Apr 2026

open study

The purpose of this study is to evaluate the safety and efficacy of atebimetinib in combination with modified GnP compared with SOC GnP alone.

Type: Interventional

Start Date: Jun 2026

open study

This clinical trial evaluates the impact of a patient-centered health and wellness coaching (HWC) intervention on adherence to treatment plans and healthy lifestyle practices in patients with papillary or follicular thyroid cancer. Treatment for thyroid cancer often involves surgery, radioactive iodine and/or lifelong levothyroxine with regular monitoring of thyroid stimulating hormone levels. Despite strong survival rates, patients frequently report fatigue, cognitive issues, mood changes, and disruptions in daily life. Treatment burden and psychosocial strain often impair the ability to follow the treatment plan and healthy lifestyle. Studies have shown that HWC motivates patients to take ownership and accountability to perform positive and healthy behavioral changes. HWC may have a positive impact on health-related goal-setting processes and improve self-care and healthcare outcomes in certain settings. It is not yet known how HWC impacts thyroid cancer patients. Incorporating HWC into survivorship care may improve adherence to treatment plans and healthy lifestyle practices in patients with papillary or follicular thyroid cancer.

Type: Interventional

Start Date: Jun 2026

open study

Colorectal cancer (CRC) is the third most common type of cancer diagnosed worldwide. The purpose of this study is to assess the adverse events and change in disease activity of telisotuzumab adizutecan plus bevacizumab compared to standard of care (SOC) of LONSURF (trifluridine and tipiracil) plus bevacizumab in adult participants with c-Met over-expressed refractory metastatic colorectal cancer (mCRC). Telisotuzumab adizutecan is an investigational drug being developed for the treatment of CRC. Participants will then be randomized into 2 groups called treatment arms. One group will receive telisotuzumab adizutecan with bevacizumab in different doses. Another group will receive standard of care (SOC), trifluridine and tipiracil (LONSURF), with Bevacizumab. Up to approximately 700 adult participants with refractory mCRC, will be enrolled in the study in approximately 125 sites globally. In this Phase 3, one of two groups will receive doses of Intravenous (IV) telisotuzumab adizutecan + bevacizumab and other group will receive oral SOC of trifluridine/tipiracil (LONSURF)+ Intravenous (IV) bevacizumab. The study will run for a duration of approximately of 36 months. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and side effects.

Type: Interventional

Start Date: May 2026

open study

The purpose of Part 1 of this study is to determine a safe, tolerable, and feasible recommended total dose of intratumorally administered JNJ-1761981. The purpose of Part 2 of this study is to identify the optimal volumetric dose of JNJ-1761981 for the treatment of tumor lesions.

Type: Interventional

Start Date: May 2026

open study

The purpose of this study is to assess how well guselkumab works when compared to risankizumab in participants with moderately to severely active Crohn's Disease (CD; a long-term condition causing severe inflammation of the intestinal tract).

Type: Interventional

Start Date: Apr 2026

open study

This study is being done to find out if delivering gemcitabine using the ACT-IOP-003 device directly to the area where the tumor is in the pancreas is safe and tolerable. The main questions the study aims to answer are: - Is ACT-IOP-003 safe and tolerable when given to patients with nonmetastatic, locally advanced, nonresectable pancreatic cancer. - How much study drug (gemcitabine) is found in the blood before and after treatment. - If the tumor responds to treatment. - If the gemcitabine side effects are less than seen when delivered intravenously (IV). Study participants will: - Have the study device surgically placed on the pancreas at the beginning of the study. - Complete 8 weeks of treatment with a 4 week screening period and 12 weeks of follow-up for a total of 24 weeks of participation in the study. - Give blood, urine, and stool samples to monitor safety and determine how much of the study drug (gemcitabine) is in the blood. - Have imaging (CT) done at least three times during the study.

Type: Interventional

Start Date: Mar 2026

open study

This study is researching an experimental drug called alirocumab, referred to as "study drug". In the United States, alirocumab is approved for the treatment of hypercholesterolemia (high blood cholesterol levels). The aim of the study is to see how safe and effective alirocumab is when given weekly to adult participants who have hypercholesterolemia. The study is looking at several other research questions, including: - What side effects may happen from taking the study drug once a week - How much study drug is in the blood at different times

Type: Interventional

Start Date: Jun 2026

open study

This study is open to adults with advanced small cell lung cancer (SCLC). The purpose of this study is to find out if a study medicine called obrixtamig plus standard treatment (atezolizumab, carboplatin, and etoposide) improves survival when compared to standard treatment alone. Obrixtamig is an antibody-like molecule that may help the immune system fight cancer. Another purpose of the study is to test a medical device being developed to measure levels of the tumour marker DLL3. Participants are put into 2 groups randomly, which means by chance. One group receives obrixtamig and standard treatment. The other group receives standard treatment without obrixtamig. All treatments are given as infusions into a vein. Participants are in the study for up to 3 years. During this time, they visit the study site regularly. Participants in the group receiving obrixtamig stay overnight at the study site following the first 2 obrixtamig treatments. At the visits, doctors check the size of the tumour(s). The results are compared between the 2 groups to see whether the treatment works. The doctors also regularly check participants' health and take note of any unwanted effects.

Type: Interventional

Start Date: Apr 2026

open study

This study is designed to evaluate the safety and effectiveness of CART123 cells either alone or when combined with ruxolitinib in pediatric and young adult subjects with relapsed or refractory AML. Subjects will be enrolled into one of two treatment cohorts: subjects who will receive CART123 alone (Cohort A) or subjects who will receive CART123 in combination with ruxolitinib (Cohort B).

Type: Interventional

Start Date: May 2026

open study

In this study, ANG003, a pancreatic enzyme replacement therapy (PERT; commonly called "enzymes"), is being investigated as a potential treatment for exocrine pancreatic insufficiency (EPI). People with EPI due to Cystic Fibrosis (CF) may be eligible to participate in this study. The primary objective of this study is to evaluate the safety of ANG003 and see if it works as well compared to Creon, an approved PERT.

Type: Interventional

Start Date: Apr 2026

open study

The main purpose of this multicenter, randomized, double-blind, placebo-controlled Phase 2b study is to investigate the safety and efficacy of GIA632 in participants with NSV and to identify the optimal dose to be promoted into the confirmatory Phase 3 program.

Type: Interventional

Start Date: Mar 2026

open study