235 Studies Now Enrolling
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Displaying 1 - 50 of 50
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: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Currently Recruiting
The purpose of this study is to research and evaluate safety and effectiveness of the administration of bone marrow mesenchymal stem cell (bmMSC) derived extracellular vesicles product, DB-3Q, the study drug for perianal fistulizing Crohns disease. The study will enroll up to 36 participants across multiple sites. Your participation in this study will be…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Currently Recruiting
The Takeda study drug used in this study is vedolizumab, a monoclonal antibody. Monoclonal antibodies are proteins made in laboratories that act like proteins in our bodies called antibodies. Vedolizumab acts specifically in the gut and works by preventing certain immune cells from going to the gut and helps reduce inflammation that can cause the symptoms (…
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: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Currently Recruiting
If your doctor has determined that you have a diagnosis of Ulcerative Colitis (UC), you may qualify for treatment with Sacral Nerve Stimulation (SNS). The purpose of this study is to evaluate the safety and effectiveness of SNS in study participants who have UC. While the investigational medical device used in this research study has been studied and…
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: 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: Gastrointestinal and Digestive Diseases
Investigator: Le-Chu Su, MD
Status: Closed
The purpose of this study is to compare the efficacy and safety of two standard-of-care drugs, Risankizumab (Skyrizi) versus Vedolizumab (Entyvio), over 48 weeks to compare how well these drugs work in patients with moderate to severe Ulcerative Colitis (UC). This study is being conducted at approximately 285 research centers worldwide and is expected to…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Closed
The purpose of this study is to assess the safety and effectiveness of GIE Medical's ProTractX3 TTS drug coated balloon (DCB) for the treatment of benign stricture in the bowel. This study is conducted to see whether this new drug coated balloon dilation device can treat strictures and reduce the rate of recurrence. Up to 215 subjects will participate…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Closed
The purpose of this study is to compare the effects, good or bad, of RO7790121 versus placebo inpatients with ulcerative colitis. In this study, you will get either RO7790121 or placebo. You will have the opportunity to participate in an open-label extension phase (getting the active drug - RO7790121), if your condition has not improved. RO7790121 is an…
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
This research study will look at a newer treatment option for Barrett's Esophagus (BE) which uses nitrous oxide to freeze unwanted tissue. The most commonly used treatment method is Radiofrequency Ablation (RFA) which uses heat to destroy the pre-cancerous tissue. Nitrous Oxide ablation using the C2 CryoBalloon Focal Ablation System, an FDA-cleared…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Closed
The purpose of this study is to evaluate the safety and performance of sacral nerve stimulation (SNS) using an FDA-approved device called InterStim Neurostimulator (InterStim) in study participants with active moderate to severe ulcerative colitis. The goal of the study team is to reduce inflammation and symptoms associated with these conditions. This…
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: Gastrointestinal and Digestive Diseases
Investigator: Shilpa Ravella, MD
Status: Closed
This is a global prospective, observational, multi-center registry to evaluate the long-term safety profile for patients with short bowel syndrome (SBS) who are treated with teduglutide in a routine clinical setting. The registry will also evaluate the long-term clinical outcomes in patients with SBS. SBS patients treated and not treated with teduglutide…
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: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
The purpose of this study is to evaluate a new technique called Wide Area Transepithelial Sample 3-Dimensional Esophageal Biopsy (WATS) with computer assisted method of analysis of brush biopsy. This study will assess whether performing standard biopsies in addition to the WATS brush biopsies identifies more patients with dysplasia than does performing…
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: Gastrointestinal and Digestive Diseases
Investigator: Joseph Picoraro, MD
Status: Closed
The purpose of this study is to characterize the pharmacokinetics (PK) and safety of intravenous (IV) pantoprazole in patients 1 to 16 years old who are candidates for acid suppression therapy.
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
C2 Therapeutics is currently enrolling patients to participate in the Coldplay 3 clinical trial. Coldplay 3 is evaluating the effectiveness of the Coldplay CryoBalloon Focal Ablation System in patients with Barrett's esophagus who have not yet received treatment. Participants will undergo treatment with the Coldplay CryoBalloon Focal Ablation System…
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…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this study is to see how safe and effective study drug GS-5745 is in treating people with moderate to severe Ulcerative Colitis. This is a randomized, double-blind, placebo-controlled study. Placebo-controlled means that you may receive an injection with no medicine in it, but looks like GS-5745. Randomized means you will be selected by…
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: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
The purpose of the study is to compare two types of endoscopic treatments in patients with Barretts esophagus (BE) with abnormal cells (dysplasia); radiofrequency ablation (RFA) and hybrid argon plasma coagulation (H-APC). H-APC is a newer technique in the treatment of BE and has not been adequately studied and is not approved by the FDA for routine use.…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this clinical research study is to test the effects of an investigational (being tested) study medication, GED-0301, in order to find out if GED-0301 can or cannot improve the symptoms of Crohns disease. The study will test 2 doses of GED-0301 compared to placebo. The placebo is a dummy pill that contains no study medication (or GED-0301),…
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: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
This study is for patients that have been diagnosed with Crohn's Disease, which is an inflammatory disease of the gastrointestinal tract (stomach and intestines). The purpose of this study is to see if study drug GS-5745 is effective in treating people with Crohn's Disease.
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: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
This study is being done to see how safe and effective this investigational drug is and how well it is tolerated in subjects with ulcerative colitis. This study will study the safety of LY3074828 and any side effects one might have when they take it and how much LY3074828 should be given to subjects.
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: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of the study is to determine if the experimental use of an antibiotic called rifaximin for upto one year can improve the symptoms of Crohns disease (like abdominalpain and liquid/very soft stools), and if rifaximin can improve the inflammation in the intestines causedby Crohns disease. The study is trying to determine if rifaximin, unlike other…
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: Gastrointestinal and Digestive Diseases
Investigator: Julie Khlevner, MD
Status: Closed
We are currently recruiting pediatric patients ages 7-17 who suffer from Irritable Bowel Syndrome with Constipation (IBS-C) for our Linaclotide clinical trial. Study will involve 6 visits and will last anywhere from 10-12 weeks after the patient qualifies.
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marc Bessler, MD
Status: Closed
This study is for patients with Gastroesophageal Reflux Disease or GERD which may cause reflux or heartburn. Symptoms are often caused by a weak valve, or sphincter, between the esophagus (the swallowing tube that leads from your mouth to your stomach) and the stomach. This structure is called the lower esophageal sphincter (LES). Normally, when liquid and…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Francis Gress, MD
Status: Closed
The purpose of this Registry is to develop a database to store information from subjects who haveundergone an examination of the esophagus with the NvisionVLE Imaging System. This is done bythe collection and analysis of the medical record information, imaging data, and physicianquestionnaires. The information is then stored in a database and may be used at…
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: Gastrointestinal and Digestive Diseases
Investigator: Melanie Gold, MD
Status: Closed
Auriculotherapy is a type of Eastern medicine that has been used for thousands of years involving the ear. The ear has nerve connections to the whole body, and therefore using non-invasive techniques can be used to treat a wide variety of problems. This study is looking to see if auriculotherapy might be used to treat abdominal pain and find areas on the…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Peter Green, MD
Status: Closed
This research study is testing an investigational medication called AMG 714 for people with refractory celiac disease Type II. If youre at least 18 years of age, diagnosed with celiac disease, and you are still experiencing persistent or recurrent intestinal atrophy and gastrointestinal symptoms despite following a strict gluten-free diet for at least 6 12…
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: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this study is to find out if a new investigational drug, called tofacitinib (also known as tofacitinib citrate or CP-690,550), can help people with Ulcer Colitis (UC). The purpose of this research study is to compare the effects of tofacitinib to a placebo in patients with Ulcer Colitis (UC). A placebo looks like the study drug but does not…
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: Gastrointestinal and Digestive Diseases
Investigator: Joseph Picoraro, MD
Status: Closed
New medical therapy for pediatric Crohn's disease (CD) or pediatric ulcerative colitis (UC). We are currently recruiting pediatric participants (aged 2 to 17 years) who have received a diagnosis of UC or CD but who do not tolerate or respond to standard treatments, including corticosteroids, immunomodulators and TNF-alpha antagonists. The hubble study…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Garrett Lawlor, MD
Status: Closed
The main purpose of this study is to see if ustekinumab is useful for treating patients with moderately to severely active ulcerative colitis. The safety of ustekinumab will also be studied.
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.