233 Studies Now Enrolling
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Displaying 1 - 34 of 34
Condition: Ear, Nose and Throat / Loss of Smell
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
The Columbia University Department of Otolaryngology is interested in understanding altered flavor perception through the Cognitive Flavor Assessment Protocol (CFAP), a novel multisensory diagnostic and training framework that links smell and taste function to cognitive and emotional health. You can participate in this study if you are an adult between 18…
Condition: Obesity
Investigator: Ilene Fennoy, MD
Status: Currently Recruiting
Bariatric surgery and a once-weekly glucagon-like peptide-1 medicine both cause major weight loss in teens, but their effects on mouth and gut bacteria and on damaged blood fats tied to metabolism are still unknown. This study will collect saliva, stool, and routine blood samples from adolescents before treatment and six months later to see how these…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
We are conducting a research study on the effect of high insulin levels on the buildup of excessive liver fat ("fatty liver disease") in people at risk for type 2 diabetes. We are seeking adult volunteers, ages 18-65, who have obesity with a body mass index of 30-45, and have been diagnosed with, or are at risk for, prediabetes and metabolic…
Condition: Obesity
Investigator: Daphna Shohamy, PhD
Status: Currently Recruiting
We are researchers at Columbia studying the learning and decision making. We are looking for participants over the age of 18, who have been prescribed Trizepatide for weight loss. Participants will be asked to complete an MRI scan and play computer games. Participants earn $25 per hour. Help us understand how the GLP-1 agonists affect brain and cognition!
Condition: Obesity
Investigator: Faris Zuraikat, PhD
Status: Currently Recruiting
The purpose of this study is to assess energy balance during two different diet periods.
Condition: Obesity
Investigator: Rudolph Leibel, MD
Status: Currently Recruiting
The Physiology of the Weight Reduced State (POWERS) is a national research study designed to discover and learn what happens to the human body after weight loss and to learn why some people regain their lost weight. Understanding why this happens could help health professionals improve strategies for successful weight loss maintenance after weight loss.…
Condition: Obesity
Investigator: Judith Korner, MD
Status: Currently Recruiting
The purpose of this study is to evaluate if genetic variations are associated with the amount of weight loss with diet and while taking an FDA-approved medication for weight loss. The participation lasts ten months and includes six in-person visits at CUIMC with blood sampling and questionnaires, virtual nutritional counseling, and taking an oral weight…
Condition: Ear, Nose and Throat / Hearing Loss
Investigator: Justin Golub, MD, MS
Status: Currently Recruiting
Early Age-Related Hearing Loss Investigation (EARHLI) is a study to obtain information on how a hearing aid-based intervention can prevent cognitive decline in those at risk for Alzheimer's Disease and Alzheimer's Disease Related Dementias (AD/ADRD). Age-related hearing loss (ARHL) is the third most common chronic condition in older adults. The…
Condition: Ear, Nose and Throat
Investigator: Yi Cai, Md
Status: Currently Recruiting
We are currently looking for adult patients who have undergone successful treatment of their obstructive sleep apnea with a hypoglossal nerve stimulator implant (i.e. Inspire therapy). Participants should be willing to participate in at-home sleep studies and come to Columbia University Irving Medical Center for at least 2 study visits. Participants will…
Condition: Ear, Nose and Throat
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
The Columbia Otolaryngology Department is interested in understanding how sense of smell relates to memory and neurocognition. Participation will involve answering a series of questionnaires, completing a formal evaluation of your smell with standardized measurements, and complete short smell and memory games. You can participate in this study if you are…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
We are conducting a research study on how insulin controls blood sugar in both healthy people and those at risk of type 2 diabetes. We are seeking adult volunteers, aged 18-65, who have body mass indices either in the lean range (18-25 kg/m2) or in the obesity range (30-45 kg/m2) but who do not have prediabetes or diabetes. Participants will undergo a…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
We are recruiting volunteers, aged 18-70, for a research study on the buildup of excessive liver fat ("fatty liver disease") in people with or at risk for type 2 diabetes because their bodies are resistant to the actions of the blood sugar-lowering hormone, insulin. To do this, we seek to temporarily induce or accentuate insulin resistance in 14…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
We are seeking adult volunteers with body mass index in the obesity range (30-45 kg/m2) to come in for a single study visit where they answer some health questions and have a small volume of blood drawn (25 cc/1.7 tbsp). We will measure levels of the blood sugar-lowering hormone insulin as well as glucose (sugar), certain fats, and other molecules related…
Condition: Ear, Nose and Throat
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
The Columbia Otolaryngology Department is interested in understanding the intersection of vaping, smell, and taste and their impact on individuals' preferences for certain flavors. Participation will involve answering a series of questionnaires in addition to completing a formal evaluation of your smell and taste with standardized measurements. You can…
Condition: Ear, Nose and Throat / Loss of Smell
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
Our research team at Columbia University is trying to understand the impact of COVID-19 on smell and taste (chemosensory) dysfunction among adult patients from the Greater New York City area. Current areas of study include: 1) Investigation of smell and taste recovery patterns among patients with COVID-19; 2) Studies on how recovery of smell and taste after…
Condition: Ear, Nose and Throat / Hearing Loss
Investigator: Nima Mesgarani, PhD
Status: Currently Recruiting
The purpose of this study is to learn more about the mechanisms of hearing loss, specifically to learn how abnormalities in the brain may produce certain experiences that are common in patients with hearing loss. Individuals with hearing loss will be compared to individuals with normal hearing.
Condition: Kidney Disease
Investigator: Gerald Appel, MD
Status: Closed
We are particularly interested in the diseases that cause nephrotic syndrome called Focal and Segmental Glomerulosclerosis (FSGS), Minimal Change Disease (MCD), and Membranous Nephropathy (MN). By collecting health information and laboratory samples, our goal is to learn more about diseases and find better ways to prevent and treat people with diseases.…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Closed
We're conducting a research study on how much insulin is needed to control blood sugar in people who are made temporarily resistant to insulin's effects. Insulin is the main hormone (chemical signal) that the body uses to lower the levels of sugar in the blood. We are interested in looking at insulin levels because we think that lowering insulin…
Condition: Kidney Disease
Investigator: Thomas Nickolas, MD, MS
Status: Closed
The CureGN Bone Study is a prospective study that is assessing the effects of 4-types of kidney disease on the skeleton. In order for us to determine the true effect of kidney disease on bone, we need to determine what healthy bone looks for patients who have the same age, race, sex, and body mass index as the patients with kidney disease. We are looking…
Condition: Ear, Nose and Throat / Hearing Loss
Investigator: Alice Lee, MD
Status: Closed
Cisplatin is a chemotherapy medicine that is used to treat a variety of cancers. At high total (cumulative) doses it can be associated with progressive and irreversible hearing loss. The purpose of this study is see if injections of OTO-104 can protect against hearing loss associated with cisplatin therapy in the treatment of cancer. OTO-104 contains an…
Condition: Kidney Disease
Investigator: Marcus Pereira, MD, MPH
Status: Closed
This research is being done to learn whether organ transplantation from HIV-positive deceased donors is as safe and effective in HIV-positive recipients as transplants from HIV-negative deceased donors. People with end-stage organ disease and HIV infection, and who qualify for organ transplantation, may join this study.
Condition: Kidney Disease
Investigator: Gerald Appel, MD
Status: Closed
A sign of your kidney disease is the presence of too much protein in your urine. The purpose of this study is to evaluate if the investigational study drug abatacept can decrease the amount of protein in your urine and improve your kidney disease beyond the treatment you have received or are already receiving. Abatacept is being used in an investigational…
Condition: Kidney Disease
Investigator: Marcus Pereira, MD, MPH
Status: Closed
The MK-8228-002 Study is studying the safety and effectiveness of an investigational medication for preventing cytomegalovirus (CMV) disease in adults with kidney transplants. The MK-8228-002 Study is evaluating an investigational medication (known as MK-8228) versus valganciclovir (VGCV). VGCV is an antiviral medication and is the current standard of care…
Condition: Ear, Nose and Throat / Hearing Loss
Investigator: Anil Lalwani, MD
Status: Closed
Acute inner ear hearing loss is the sudden onset of hearing loss, usually in one ear, without any known cause. Acute hearing loss can permanently destroy some of the hair cells (that govern the sense of hearing) and / or hearing nerve in the inner ear.The drug AM-111 has been developed to protect the hearing cells and nerve following sudden inner ear…
Condition: Kidney Disease
Investigator: Pietro Canetta, MD
Status: Closed
The purpose of this study is to assess the most adequate dose of Acthar Gel (ACTH) in patients withIgA nephropathy. Acthar Gel (ACTH) has been approved by the Food and Drug Administration(FDA) for routine clinical use in the treatment of patients with proteinuria and patients withidiopathic nephrotic syndrome such as IgAN.
Condition: Ear, Nose and Throat / Hearing Loss
Investigator: Lawrence Lustig, MD
Status: Closed
The purpose of this research is to find out whether it is safe to use a virus to deliver a new gene to the inner ear of people with hearing loss. This is a kind of gene therapy which involves gene transfer. Once the genetic material and vector are surgically administered to you, it is not possible to remove these agents. The study is designed to evaluate…
Condition: Kidney Disease
Investigator: Jai Radhakrishnan, MD
Status: Closed
The purpose of this study is to evaluate the safety and effectiveness of an investigational medication in patients with focal segmental glomerulosclerosis (FSGS). The goal is to learn whether the investigational medication may change the amount of protein in the urine and decrease proteinuria.
Condition: Kidney Disease
Investigator: Thomas Nickolas, MD, MS
Status: Closed
Kidney disease patients have a variety of severe bone disorders that result in rapid bone loss and fractures. We are doing this research study to determine relationships between bone quality determined from bone imaging and bone biopsy and by non-invasive measures from blood and skin. We are trying to identify non-invasive markers of bone quality in kidney…
Condition: Kidney Disease
Investigator: Jai Radhakrishnan, MD
Status: Closed
This study is for patients with autosomal dominant polycystic kidney disease (ADPKD). The purpose of this study is to test the effectiveness of a study drug called tolvaptan. Tolvaptan continues to be studied in this trial as a possible treatment for ADPKD. ADPKD is a disease that causes kidney cysts (cyst are like fluid-filled balloons), worsening kidney…
Condition: Ear, Nose and Throat
Investigator: Eli Grunstein, MD
Status: Closed
The objective of the study is to evaluate the safety and effectiveness of the TULA System for the placement of tympanostomy tubes (ear tubes) under local anesthesia in an office/clinic setting.
Condition: Kidney Disease
Investigator: Ziad Ali, MD
Status: Closed
Contrast-Induced Nephropathy (CIN) can occur when patients with pre-existing kidney problems undergo procedures that use iodinated contrast media, such as cardiac catheterizations. RenalGuard Therapy was developed to enable the patient to clear the contrast out of their kidney before it can do significant damage. This study aims to enroll patients with…
Condition: Kidney Disease
Investigator: Gerald Appel, MD
Status: Closed
The purpose of this research study is to understand the way Alport Syndrome affects patients kidneys over time. Alport syndrome is a genetic condition that causes damage to your kidneys over time. Currently there is not much information on the disease. Information about how the body is affected by the disease will be collected, along with medical and family…
Condition: Ear, Nose and Throat
Investigator: Ana Kim, MD
Status: Closed
Acute unilateral vestibulopathy (AUV) (previously called acute vestibular neuritis) is the third most frequent cause of peripheral vestibular vertigo, after benign paroxysmal positional vertigo and Menires disease.The goal of this study is to look at the effects of a new drug (SENS-111) in controlling the acute vertigo and other symptoms related to AUV more…
Condition: Kidney Disease
Investigator: Wooin Ahn, MD
Status: Closed
Focal Segmental Glomerulosclerosis (FSGS) is a disease in which your kidneys allow an excess amount of protein in your urine. Too much protein in the urine (also called proteinuria) is a medical condition called nephrotic syndrome. The purpose of this clinical trial is to evaluate the safety and effectiveness of the study drug, Acthar, in adult patients…