All Clinical Trials

The current standard treatment option for Human Papillomavirus (HPV) or p16-positive oropharyngeal cancer is full-dose radiation combined with chemotherapy. Results with chemotherapy combined with full-dose radiation therapy leads to high rates of cure; this has called into question whether therapy can be decreased in intensity since both chemotherapy and radiation have long-term side effects. One approach to decrease intensity of treatment is to give radiation alone (excluding chemotherapy) and to decrease radiation therapy dose. The investigator believes that omitting chemotherapy and decreasing radiation dose both to tumor and the regions of the head and neck at highest risk of potential spread, may have no significant impact on the cancer recurring while potentially leading to fewer long-term side effects. Read Less

This study investigates the benefits of two different types of 2 minute activity breaks during sedentary workdays for people who sit for long periods of time in sedentary jobs. Read Less

The purpose of the Antiretroviral Pregnancy Registry (Registry) is to detect any major teratogenic effect involving any of the Registry drugs when administered to pregnant people. Registration is voluntary and confidential with information obtained from the health care provider. A Registry-assigned identifier allows for follow-up capability. Information on subjects is provided to the Registry prospectively (prior to the outcome of pregnancy being known) through their health care provider, with follow-up obtained from the health care provider after the outcome is determined. Providers are strongly urged to enroll their patients as early in pregnancy as possible to maximize the validity of the data. In addition, the Registry is very interested in assembling a group of providers who are willing to make a commitment to report all of their site's antiretroviral pregnancy exposures to the Registry, thereby assuring all cases can be considered prospective. Providers are encouraged to contact the Registry for more information about this group. The Registry is informed in its analysis by other data, for example, retrospective reports and clinical studies. Given the increasing number of medications and more aggressive approach to therapy, more HIV- and hepatitis B-infected people may be treated during pregnancy or become pregnant while under treatment. The paucity of data on use and infant outcomes of antiretroviral therapies during pregnancy makes this Registry an essential component of the ongoing program of epidemiologic studies of the safety of these therapies. Each year the Registry has enrolled approximately 1300-1700 pregnant people in the US exposed to antiretroviral drugs. This number represents approximately 15% of the 8,700 HIV positive people who give birth to live infants annually in the US. Read Less

ASTOR's primary purpose is to enroll families and patients with a history of Alport syndrome in a central registry. The information we gather will be used as a basis for studies designed to test potential treatments for Alport syndrome. ASTOR also aims to provide patients, families and physicians with the most up-to-date information about Alport syndrome. Read Less

The specific aims of this project are to create a registry, as well as a biospecimen bank for individuals with pancreatic disease (e.g. pancreatic adenocarcinoma, pancreatitis, intraductal papillary mucinous neoplasm (IPMN) mucinous cystic neoplasm (MCN), and pancreatic intraepithelial neoplasia (PanIN) or have been determined to be at high-risk for pancreatic cancer. Biospecimen can be defined as blood, urine, tissue, stool, or saliva samples. Therefore, no hypothesis is to be tested. The personal data derived from the registry, correlated with biological information derived from the biospecimens will allow for future investigative studies of pancreatic cancer etiology and tumor biology. The long-term goals of the study are to advance the knowledge of the etiology and epidemiology of pancreatic cancer. It is anticipated that the knowledge derived will ultimately lead to improvements in the diagnosis, prevention, detection,and treatment of pancreatic cancer. Read Less

The purpose of this research study is to develop a method of using magnetic resonance imaging (MRI) to evaluate lung tumors and other thoracic malignancies. An MRI is a scanning device that uses magnets to make images (pictures) of the body. This study is being done to determine what series of reactions (metabolic pathways) pulmonary nodules use as they burn sugar as fuel for growth. The manner in which the tumor burns (metabolizes) sugar for fuel is being investigated by using a natural, slightly modified, sugar solution (13C-glucose) and studying a small sample of the tumor once it is removed at the time of surgery. Read Less

This study evaluates 670 nm energy in the form of red light to stimulate blood flow changes in healthy adults. All participants will receive red light to their leg. They will also receive a continuous infusion of Definity (octafluoropropane) ultrasound contrast. Read Less

Magnetic resonance imaging (MRI) is currently one of the standard diagnostic imaging methods used to diagnose tumor stage before treatment in the Radiation Oncology Department. It is also used to check responses to radiation after treatment. However, MRI isn't traditionally used in planning for radiation treatment or in checking treated tumor and tissue changes during radiation treatment. The goal is to find out the possible benefits of MRI imaging techniques in these settings of radiation treatment. The research aims are to study the possibility of using devices with new abilities such as the MR-Linac. The MR-Linac combines a radiation treatment machine with a diagnostic MRI scanner. This device will improve the quality of MRI-guided radiation treatment. The MR-Linac has functions that are currently not available in other combined imaging and radiation delivery devices. The MR-Linac does not provide additional imaging capabilities that are not currently available in other imaging devices. Participating in this study would NOT change the current treatment plans, this will allow the investigators to use the MRI methods in research and future patient care. Read Less

The proposed research study aims to evaluate the effects of autologous bone marrow aspirate concentrate (BMAC) on the development and progression of osteoarthritis (OA) in patients undergoing meniscectomy. This prospective, randomized, double-blind clinical trial will compare patient-reported outcomes, specifically IKDC scores between patients who receive BMAC post-meniscectomy and those who receive a saline control injection. The study will also compare physical examination, MRI, radiographs, and synovial fluid analysis. Our hypothesis is that those who receive the autologous BMAC injection after the procedure will have better outcomes than those who do not. Read Less

The goal of this clinical research study is to learn whether delivering spine radiosurgery in a single large dose is better than delivering spine radiosurgery over 3 smaller doses. Researchers also want to learn about the effects of a single dose on participant's symptoms, pain, and quality-of-life. Read Less

Investigators will compare magnetic resonance (MR) elastography measurements to other forms of noninvasive methods of detecting raised intracranial pressure, including optical coherence tomography (OCT) imaging measurements of the retinal nerve fiber layer (RNFL) and indirect signs of raised intracranial pressure on magnetic resonance imaging (MRI). Read Less

Subjects with a known diagnosis of peripheral artery disease as measured by an abnormal ankle brachial index (\<.9 or \>1.1) will undergo a single 5 min exposure of 670 nm light, 1 cm above the gastrocnemius muscle. Blood flow will be measured by infusion of ultrasound contrast and subsequent acquisition of ultrasound images. 2 blood samples will be collected for measurement of nitric oxide metabolites. Read Less