236 Studies Now Enrolling
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Displaying 201 - 231 of 231
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: Marie-Pierre St-Onge, PhD
Status: Closed
We are doing this research study to find out how different amounts of sleep restriction affect yourbody's ability to generate heat. This study will determine the effects of partial sleep restriction (PSR) (4 h in bed) and total sleep deprivation (TSD) (0 h in bed) compared to a full night of habitual sleep (HS)(8 h in bed) on brown adipiose tissue (…
Condition: Healthy Volunteers
Investigator: Moise Desvarieux, MD, PhD
Status: Closed
We are looking for people ages 65 and older to help us evaluate if an investigational drug improves muscle function, which can reduce risk of falls and fractures. To be considered for the study, you: 1. Must complete a pre-screening phone interview to assess your eligibility 2. If you are eligible, you will be invited to attend an in-person appointment at…
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 / Exercise
Investigator: Richard Sloan, PhD
Status: Closed
This study focuses on the effects of aerobic conditioning on cognition and brain activity. Eligible participants will complete an exercise stress test, MRI, and cognitive testing session at the beginning and end of the study. Once participants complete the first set of appointments, they will be randomly assigned to one of two conditions for 12-weeks.…
Condition: Neurological Disorders / Brain Tumors
Investigator: Andrew Lassman, MD
Status: Closed
The purpose of the research study is to see if selinexor has any effects against your cancer and toevaluate the side-effects of selinexor or selinexor in combination with temozolomide (TMZ ). One specific way cancer cells continue to grow is by getting rid of certain proteins called tumor suppressor proteins that would normally cause cancer cells to die.…
Condition: Neurological Disorders / Brain Tumors
Investigator: Andrew Lassman, MD
Status: Closed
The reason for this study is to find out if the experimental study drug, tesevatinib, is effective as a possible treatment for recurrent glioblastoma. Certain genetic information about your tumor will also be collected, by drawing blood, to help better understand why tesevatinib did or did not work in treating your recurrent glioblastoma. Although…
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: Neurological Disorders / Brain Tumors
Investigator: Fabio Iwamoto, MD
Status: Closed
The purpose of this study is to find out if SL-701 is safe and tolerable for patients with recurrent glioblastoma multiforme (GBM). The study will also look at what effect SL-701 has on patient's brain tumor. SL-701 is a type of anti-cancer vaccine made up of parts 3 different short proteins called "peptides" which are frequently found on…
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: Richard Sloan, PhD
Status: Closed
The purpose of this study is to examine the effect of dietary flavanols on brain activity and memory. Flavanols represent a specific group of plant derived nutrients that are found in cocoa beans, grapes, tea, berries and various other fruits and vegetables. The specific flavanols investigated in this study come from cocoa. Participants will be asked to…
Condition: Neurological Disorders / Brain Tumors
Investigator: Andrew Lassman, MD
Status: Closed
Two different studies have been developed to treat people with anaplastic glioma brain tumors. Onetreatment research study requires a tumor that has the 1p/19q co-deletion tumor marker; the other does not. This treatment research study requires that the subject has a certain kind of tumor, one that is missing part of both chromosomes 1 and 19. These missing…
Condition: Neurological Disorders / Brain Tumors
Investigator: Yazmin Odia, MD
Status: Closed
The purpose of this study is to test whether the new drug, ABT-414, given either alone or with a drug called temozolomide, which is commonly used to treat brain tumors like yours, gives a better outcome than the standard therapy and is safe. The standard therapy can be one of two different regimens, either a drug called lomustine or temozolomide.
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: 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: 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: 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 / 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: 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: Neurological Disorders / Brain Tumors
Investigator: Mary Welch, MD
Status: Closed
The purpose of this study is to: See if taking the study agent, armodafinil, at a dose of 150mg or 250mg, will improve problems with fatigue in patients who have been diagnosed with cancer and are experiencing fatigue. See the effects (good and bad) of taking Armodafinil compared to placebo (an inactive agent) on cancer-related fatigue
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: 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: 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: Neurological Disorders / Brain Tumors
Investigator: Fabio Iwamoto, MD
Status: Closed
The purpose of this study is to find out whether an experimental drug, bevacizumab with temozolomide is safe when given to elderly patients with brain tumors and investigate the side effects of the drug combination and how often they occur. This study will also explore whether bevacizumab and temozolomide can be effective in shrinking tumors when given to…
Condition: Healthy Volunteers
Investigator: Paula Castano, MD, MPH
Status: Closed
Columbia University is conducting a contraceptive clinical trial looking at two intrauterine devices, one of which is investigational. Pre-menopausal women ages 16-40 who are generally healthy, sexually active, at risk for pregnancy, and are not at risk for sexually transmitted infections may qualify.
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: 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: Neurological Disorders / Brain Tumors
Investigator: Fabio Iwamoto, MD
Status: Closed
In this research study, we are looking for Information on how well nivolumab with or without ipilimumab works in combination with TTFields in adult patients with glioblastoma. You will receive the Nivolumab and/or Ipilimumab study treatment until you decide to stop study treatment or your study doctor decides to remove you from the study. This means that…
Condition: Healthy Volunteers
Investigator: Julia Wynn
Status: Closed
This study is evaluating genomic screening in Ashkenazi Jewish and Hispanic communities. Genomic screening is done by collecting a blood sample and looking at a person's genes to learn if they are at high risk for certain health problems like cancer or heart disease or are at risk to have a child with a genetic condition. The study is designed to…
Condition: Neurological Disorders / Brain Tumors
Investigator: Jeffrey Bruce, MD
Status: Closed
The purpose of this study is to determine the safety of directly injecting a tumor chemotherapy drug called Topotecan and a contrast agent called Gadolinium into malignant brain tumors.
Condition: Neurological Disorders / Brain Tumors
Investigator: Teri Kreisl, MD
Status: Closed
This is a research study to test the effects of VB-111 combined with Bevacizumab versus Bevacizumab alone on glioblastoma . This study will enroll 252 subjects age 18 years and older who have recurrent glioblastoma. All subjects will be randomly assigned in a 1:1 ratio to receive either VB-111 combined with Bevacizumab or Bevacizumab alone. Survival, tumor…