341 Studies Now Enrolling
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- Show all (1936)
- Addiction (18)
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Displaying 201 - 234 of 234
Condition: Transplant / Stem Cell Transplant
Investigator: Ran Reshef, MD
Status: Closed
The purpose of this study is to see which study drug is the better treatment for CMV infection. The study also wants to see how safe the study drugs are. The study drugs are Maribavir and Valganciclovir. Those who participate in the study will not know which drug they are taking. The study team will not know either.
Condition: Healthy Volunteers
Investigator: Richard Sloan, PhD
Status: Closed
The purpose of this research study is to determine whether ambulatory monitoring of blood pressure measured by a finger touch blood pressure monitor is a viable approach to measuring blood pressure in the field. A secondary aim is to determine whether the finger touch blood pressure monitor is influenced by individual differences in current stress levels…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to evaluate the safety and efficacy of FS Grifols as an adjunct to hemostasis during parenchyomous tissue open surgical procedures. Baseline assessments will be performed within 24 hours prior to the scheduled surgery. There will be a physical assessment and a blood draw at the first study visit. Subjects will be randomly…
Condition: Healthy Volunteers
Investigator: Marie-Pierre St-Onge, PhD
Status: Closed
The overall goal of this project is to determine whether short sleep duration is a risk factor for cardiovascular disease in women. We are currently looking for healthy, non-smoking women to participate in a sleep study. You must be willing to come to Columbia University Medical Center once a week for two 6-week periods and regularly sleep at least 7-9…
Condition: Transplant
Investigator: Selim Arcasoy, MD
Status: Closed
This study is for patients who have had a lung transplant and whose doctors believe that their body is rejecting the new lung, resulting in damage to the transplanted lung or lungs. This condition is called Bronchiolitis Obliterans Syndrome (BOS). In some patients, BOS progressively worsens, causing more breathing difficulty, worse quality of life. We are…
Condition: Healthy Volunteers
Investigator: Suzanne Lewis, MD
Status: Closed
While optical colonoscopy (OC) is considered the gold standard for colorectal cancer screening, there are alternative approaches to visualization of the colon. Participants will receive screening by either colon capsule endoscopy (CCE) and computed tomographic colonography (CTC). They will be instructed to follow a detailed colon preparation regimen prior…
Condition: Healthy Volunteers / Exercise
Investigator: Richard Sloan, PhD
Status: Closed
This study focuses on the effects of aerobic conditioning on cardiovascular function and inflammatory response. Eligible participants will complete an exercise stress test, laboratory visit, and cognitive testing session at three specific time points over the course of the study. Once the initial set of appointments is complete, participants are randomly…
Condition: Healthy Volunteers
Investigator: Jonathan Posner, MD
Status: Closed
Children with Attention-Deficit/Hyperactivity Disorder (ADHD) are typically treated with two types of medications: stimulants and non-stimulants. These medications work in different ways to treat ADHD symptoms, but we do not fully understand the brain mechanisms underlying the medications' effects. This study will use MRI scanning to look at changes in…
Condition: Healthy Volunteers
Investigator: Magdalena Sobieszczyk, MD
Status: Closed
We are working on a new HIV vaccine study that builds on past success and other ongoing studies. This new study is called HVTN 120 and is testing a vaccine for HIV prevention. The Thai Trial has been the only study where the vaccines were partially protective in preventing HIV. We learned a lot from that study, and are now improving on next generation of…
Condition: Healthy Volunteers
Investigator: Jeffrey Miller, MD
Status: Closed
The purpose of this study is to use Positron Emission Tomography (PET) to identify changes in brain chemistry that may cause an episode of depression. This study will be carried out in approximately 30 subjects. PET is a technique that provides "pictures" of chemical connections in the brain by injecting and monitoring a radioactive substance. In…
Condition: Healthy Volunteers
Investigator: Loren Gianini, PhD
Status: Closed
The goal of this study is to better understand why some people have managed to lose weight and keep it off while others have not. We are recruiting people who have lost weight and kept it off as well as healthy non-dieters with overweight or obesity who are not trying to lose weight. Study participation involves computer tasks, brain imaging, and eating a…
Condition: Transplant / Kidney Transplant
Investigator: Mark Hardy, MD
Status: Closed
Subjects who undergo a kidney transplant require long term use of anti-rejection (immunosuppressive)drugs to prevent their body's immune system from attacking and damaging the newly transplanted kidney (rejection).The purpose of this study is to evaluate benefits and risks of two combinations(regimens) of immunosuppressive therapies: Thymoglobulin…
Condition: Healthy Volunteers
Investigator: Carolyn Westhoff, MD
Status: Closed
Tired of having to remember to take your birth control? If you are a woman between the ages of 18 and 35, are pre-menopausal, sexually active and do NOT wish to become pregnant, you are invited to see if you may qualify for a research study. The purpose of this research study is to test the effectiveness of an investigational contraceptive vaginal ring. If…
Condition: Healthy Volunteers
Investigator: William Whang
Status: Closed
The purpose of this study is to evaluate the performance of a remote patient monitoring device against more established wired monitoring devices during common activities and low to moderate exercise.The goal of this study is to determine how the Zephyr BioPatch will work compared to more established wired monitoring devices. This study involves one visit,…
Condition: Healthy Volunteers
Investigator: Blandine Laferrere, MD, PhD
Status: Closed
This pilot study is designed to examine the effect of a novel type of lifestyle intervention, administered via a smartphone app, on weight loss and improvement of metabolic health in individuals with overweight and/or obesity. A mobile application will be used to document eating behavior through photos. In addition, participants will receive personalized…
Condition: Transplant / Stem Cell Transplant
Investigator: Prakash Satwani, MD
Status: Closed
In this trial, we will evaluate whether partially-HLA matched allogeneic multivirus-specific VSTs, will be safe and produce anti-viral effects in immunodeficient recipients infected with one of more of the targeted viruses that are persistent despite conventional anti-viral therapy. This will be in patients who have received a hematopoietic stem cell…
Condition: Healthy Volunteers
Investigator: Julie Franks, PhD
Status: Closed
Almost 40,000 people get HIV in the U.S. each year and almost all infections occur via sexual contact, especially male-to-male contact. The number of new infections has decreased slightly each year; however, we need other HIV prevention tools, including an effective HIV vaccine, to better protect people from HIV infection. An HIV vaccine is the best long-…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to determine if Nexavar (sorafenib), the study medication, is effective in preventing cancer recurrence in high risk patients following liver transplantation. The purpose of this study is to determine if sorafenib is a safe and effective treatment option for preventing the recurrence of liver cancer in high risk subjects…
Condition: Healthy Volunteers
Investigator: Paula Castano, MD, MPH
Status: Closed
Do You Have a Mirena IUD? You may qualify for a study on the extended use of the Mirena IUD! You may qualify if you are 18 to 33 years old and had your Mirena placed in 2013. Compensation available for time and effort. Find out if you qualify!
Condition: Healthy Volunteers
Investigator: Brooke Aggarwal, EdD, MS, FAHA
Status: Closed
This study is active but is no longer enrolling new subjects.
Condition: Healthy Volunteers
Investigator: Rebecca Schnall, PhD, RN
Status: Closed
Take the Online Men's Health Survey (OMHS) today! Human Immunodeficiency Virus (HIV) and syphilis disproportionately affect men who have sex with men (MSM); however, this phenomenon is not well understood and is understudied in the United States. The OMHS study is being performed to help improve STI prevention and treatment services in the United…
Condition: Transplant / Kidney Transplant
Investigator: Lloyd Ratner, MD, MPH, FACS
Status: Closed
The purpose of this research study is to see if an investigational drug, BB3, is safe and effective forincreasing the amount of urine that a transplanted kidney will produce. An investigational drugis one that is not approved by the United States Food and Drug Administration (FDA). BB3 is agrowth factor-like drug, which means that it can affect cell…
Condition: Transplant
Investigator: Elizabeth Verna, MD
Status: Closed
In this study, patients who are listed for a kidney or a liver transplant may be eligible for enrollment, asdetermined by their transplant doctors. The study is looking at patients who do not have hepatitis C virus (HCV) and provide their informed consent to receive a liver or kidney from a HCV positive donor. FDA approved medications that are used to…
Condition: Healthy Volunteers
Investigator: Eldad Hod, MD
Status: Closed
One of the consequences of donating blood is iron deficiency. In this study, we will screen healthy frequent blood donors for iron deficiency. We will enroll iron deficient donors and randomize them to intravenous iron treatment or placebo in order to determine whether iron deficiency has any harmful effects on the blood supply and the donors themselves.
Condition: Healthy Volunteers
Investigator: Kimberly Morel, MD
Status: Closed
This clinical study is being conducted for research purposes. The study cream, SD-101 (Zorblisa), has allantoin as the active ingredient and is being investigated for the treatment of the skin lesions which occur in patients with Epidermolysis Bullosa. The purpose of this clinical study is to study the effectiveness and safety of SD-101 (Zorblisa) in…
Condition: Healthy Volunteers
Investigator: Sumit Mohan, MD
Status: Closed
We are seeking your opinions regarding different organ donation policies, via a 5-10 minute survey; responses are all anonymous. Everyone who completes the survey will have the option to enter a draw for a $5 gift card.
Condition: Transplant / Stem Cell Transplant
Investigator: Prakash Satwani, MD
Status: Closed
The main purpose of the study is to find out about whether the study drug is safe in humans and aneffective treatment in pediatric patients with acute Graft versus Host Disease (GVHD). GVHD mayoccur after a bone marrow or stem cell transplant in which someone receives bone marrow tissue orcells from a donor (called an allogeneic transplant). The new,…
Condition: Healthy Volunteers
Investigator: Karen Marder, MD, MPH
Status: Closed
This study is recruiting people who have a family history of a neurodegenerative diseases, such as Alzheimer's disease or other form of dementia including frontotemporal dementia and prion disease, who are interested in doing predictive genetic testing. Participants will complete questionnaires prior to testing and then 1 month and 6 months after…
Condition: Healthy Volunteers
Investigator: Eldad Hod, MD
Status: Closed
This study is for healthy volunteers. Volunteers who agree to be part of this research will be requested to donate up to 4 tube(s) of blood (approximately 4 teaspoons). The blood will be tested for 5 standard clotting assays. Volunteers will be asked to fill out a questionnaire as well. Compensation for completion of this study is $20.
Condition: Healthy Volunteers
Investigator: Stephen Arpadi, MD, MS
Status: Closed
We are seeking healthy volunteers (HIV-negative) for a study seeing if HIV is associated with faster biological aging among older African American adults, whether faster biological age is related to health conditions that typically occur in older people and whether these conditions might be due to stress or over-activity of certain parts of the immune…
Condition: Healthy Volunteers
Investigator: Sharon Wardlaw, MD
Status: Closed
This 2-phase study aims to explore ways to predict who will respond well to the FDA approved weight loss drug lorcaserin and to understand the mechanisms that develop which limit drug efficacy. Subjects will be recruited for a 5-week crossover study (phase 1) with lorcaserin and placebo followed by treatment with lorcaserin for 24 weeks (phase 2). Phase 1…
Condition: Transplant / Stem Cell Transplant
Investigator: Monica Bhatia, MD
Status: Closed
The primary objectives of this study are to measure the safety and effectiveness of bone marrow transplant (BMT) using specific chemotherapy in children with less severe SCD and to understand the long term effects of bone marrow transplant in children with SCD, by evaluating ovarian reserve, sickle cell related brain problems, sickle cell related kidney…
Condition: Healthy Volunteers
Investigator: Billy Caceres, PhD, RN
Status: Closed
This goal of this study is to learn more about how stress and coping might be associated with blood pressure in lesbian, gay, and bisexual adults. If you are deemed eligible, first you will be scheduled for a telephone or video conference interview with a member from the study team, which may take up to 1.5 hours. For the interview, you may be asked to…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to investigate a new therapeutic regimen with or without steroids in the pediatric population. The aim is to find out whether everolimus is safe and has beneficial effects in children who receive a liver transplant. All children will receive a study drug called everolimus twice a day plus a reduced dose of cyclosporine or…
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