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Discover 11,119 clinical trials near Maryland. Find research studies in your area.
Showing 781-800 of 11,119 trials
NCT04401449
Background: COVID-19 virus infection differs among people. Some people have no or mild symptoms. For others, COVID-19 is life threatening and causes damage to the body s organs. Researchers want to better understand the virus to learn how to kill it. Objective: To understand how the COVID-19 virus causes wide differences in how sick one can become from the infection. Eligibility: People ages 18-80 with COVID-19 infection Design: Participants will be screened with a review of their medical records. Participants who enter the study at the beginning of their COVID-19 infection will stay in the hospital until they are healthy enough to go home. Those who enter after they have recovered may need to stay in the hospital 1-2 nights to perform the study tests. Participants will have MRI and CT scans of the brain, heart, and lungs. They will lie in a machine that takes pictures of the body. For the MRI, soft padding or a coil will be placed around their head and chest. They may receive a dye injected into a vein. Participants will have an ultrasound of the kidneys and heart. Participants will provide blood and urine samples. They will provide nasal swabs. Participants will have a bronchoscopy. A thin tube will be placed through the nose or mouth into the airway. Saltwater will be squirted into the lungs and removed by suction. Participants may provide a spinal fluid sample. A needle injected into the spinal canal will obtain fluid. Participants will have lung and heart function tests. At various points after recovery, participants will repeat many of these tests.
NCT04739813
Background: Aggressive B-cell lymphomas can be cured but people with disease that resists treatment or that returns after treatment have poor outcomes with standard therapies. Indolent B-cell lymphomas are generally incurable with standard therapy and treatment is aimed at controlling symptoms and achieving a durable remissions. Researchers want to see if a combination of drugs can help patients with both aggressive and indolent B-cell lymphomas. Objective: To learn if it is safe and effective to give polatuzumab along with venetoclax, ibrutinib, prednisone, obinutuzumab, and lenalidomide to people with certain B-cell lymphomas. Eligibility: Adults ages 18 and older with relapsed and/or refractory B-cell lymphoma who have had at least one prior cancer treatment. Design: Participants will be screened with: Medical history Physical exam Assessment of how they do their daily activities Blood and urine tests Heart function test Tissue biopsy (if needed) Body imaging scans (may get a contrast agent through an intravenous (IV) catheter) Participants will have a bone marrow aspiration and/or biopsy. A needle will be put into the hipbone. Bone marrow will be removed. Participants may give blood, tissue, saliva, or cheek swab samples. They may have optional biopsies. Screening tests will be repeated during the study. Treatment will be given for up to 6 cycles. Each cycle lasts 21 days. Participants will take venetoclax and prednisone tablets by mouth. They will take ibrutinib and lenalidomide capsules by mouth. They will get obinutuzumab and polatuzumab by IV infusion. They will keep a medicine diary. Participants will visit the clinic 30 days after treatment ends. They will have follow-up visits for 5 years. If needed, they can visit their local doctor instead. They may be contacted by phone, mail, etc., for the rest of their life....