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NIH/Other Sponsored Clinical Trials and Studies

Clinical studies/trials are important in finding more and better treatments. Participation in clinical studies or trials offers one way to help advance GI research. Here is a list of clinical studies, in adults and children, that are seeking participants. A description of the study purpose and contact information is included.


Abdominal Pain

Seeking Families with Children with Recurrent Abdominal Pain

Purpose of study: This study will test a non-medicine treatment approach which, if successful, would substantially change the treatment of functional abdominal pain and potentially for a wide range of childhood medical problems where parental responses to symptoms affect child experiences of these events.

Sponsor: University of Washington

Collaborators: University of North Carolina and Mary Bridge Children's Hospital

Participation: Eligible children aged 7 to 12 who have experienced at least 3 episodes of unexplained abdominal pain over a 3 month period.

Locations: Chapel Hill, North Carolina; Seattle, Washington; and Tacoma, Washington

Contacts: Sheri Ballard. Phone: 206-616-2358,; Be sure to refer to this study by its identifier: NCT01620606

Cyclic Vomiting Syndrome (CVS)

Two Online Studies on Cyclic Vomiting Syndrome (CVS)

A research study is being conducted by Richard G. Boles, M.D. from the Department of Medical Genetics at CHLA in order to learn what the experiences are regarding two nutritional supplements, co-enzyme Q10 (also known as "Co-Q") and L-carnitine (Carnitor), and one medication, amitriptyline (Elavil), for the treatment of cyclic vomiting syndrome (CVS). Find out more and access online survey here.

The Cyclic Vomiting Syndrome Association (CVSA) is undertaking a formal process of educating Emergency Room physicians and para-professionals about Cyclic Vomiting Syndrome (CVS). They are asking for your participation in a brief survey via this link in order to help plan this educational approach, which is under the project leadership of  B.U.K. Li, M.D., Children's Hospital of WI. 

Verified August 2013



NIH Gastroparesis Clinical Research Consortium  (GpCRC)

The GpCRC is recruiting patients for their gastroparesis registry. Individuals with gastroparesis who sign up for the registry may be contacted about participating in trials or surveys about gastroparesis. The GpCRC is a network of medical centers, sponsored by the National Institutes of Health (NIH), Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), established to improve our understanding of the cause and natural course of gastroparesis and to advance the diagnosis and treatment of this disorder.


James Tonascia, PhD at 410-955-3704;

Aynur Unalp-Arida, MD, PhD at 410-614-4851;

Verified August 2013

Gainesville, FL

A study at the University of Florida is looking at the comparative effectiveness of two drugs, Azithromycin (AZI) and Erythromycin in the treatment of gastroparesis. The effectiveness of Erythromycin is currently known in the treatment of gastroparesis patients, however in susceptible patients is associated with adverse events. Azithromycin is an antibiotic with fewer known side effects.

The study is open to men and women aged 18 to 65 presenting to gastroenterology motility specialty clinics at the University of Florida, who meet the clinical and radiologic diagnostic criteria for diagnosis of gastroparesis.


Lasheaka V. McClellan at 352-392-6293;

Cheryl Curington, BS at 352-392-6293; 

req. ver. August 2013


Rare Genetic Diseases


The National Institute of General Medical Sciences (NIGMS) Human Genetic Cell Repository at the non-profit Coriell Institute for Medical Research is seeking blood samples from from individuals with rare genetic diseases.

In an effort to help researchers working to understand genetic gastrointestinal motility diseases like mitochondrial neurogastrointestinal encephalopathy (MNGIE), the Repository is collecting blood samples and clinical data from individuals with rare genetic diseases. The samples are made anonymous and shared with scientists to use in their research for treatments and causes. Families living outside of the United States are also welcome to donate a sample to the repository.

Families who want to participate in this research effort can can read more about the Repository and donation process here, or can contact the NIGMS Human Genetic Cell Repository genetic counselor, Tara Schmidlen, for postage-paid sample collection kits and the necessary paperwork:

Tara J. Schmidlen, MS, CGC
Certified Genetic Counselor
Coriell Institute for Medical Research
403 Haddon Avenue
Camden, NJ 08103
phone: 856-757-4822

Added Sept 2014

Hirschsprung's Disease

Baltimore, MD

Dr. Aravinda Chakravarti’s laboratory at Johns Hopkins University has been investigating the genetics of Hirschsprung disease for more than twenty years. The purpose of our study is to continue the search for genes involved in Hirschsprung disease and to further characterize the known genes and the interactions between them. Our study will hopefully lead to a better understanding of the genetics of Hirschsprung disease and, further down the road, improved diagnosis, treatment, and genetic counseling.

Our study will hopefully lead to a better understanding of the genetics of HSCR and, further down the road, improved diagnosis, treatment, and genetic counseling.

Anyone with Hirschsprung disease and their family members may join the study. We ask study volunteers to complete a medical/family history questionnaire, provide access to some medical records, and to submit blood or cheek swab/saliva samples from the individual(s) affected with Hirschsprung disease and his/her parents (if available).

If you are interested, a kit containing all the materials necessary to participate can be sent to you. There will be no cost to you.

For more information please contact the study coordinator, Courtney Berrios, at 410-502-7541 or

You can also visit our study website at:

Verified August 2013

Irritable Bowel Syndrome (IBS)


Online IBS Survey

Purpose: This online survey aims to help patients and physicians form an effective therapeutic relationship.

IFFGD, together with the University of Michigan and the Drossman Center for Education and Practice of Biopsychosocial Care, is seeking people with irritable bowel syndrome (IBS) to participate in the research study.

Who May Participate: If you are over 18 years old, live in the US or Canada, and have seen a gastroenterologist in the last 6 months, you may be eligible to participate.

About the Study:  The study involves completing an online questionnaire about the relationships between patients and their doctors. It shouldn’t take more than 30 minutes.

Your participation in this survey will help training physicians provide better care in the future for all patients.

How to Begin the Study: Please visit this link for more information and to begin with some preliminary eligibility questions.

As thanks for your participation, all who complete the study will be entered into a raffle to win one of thirty $100 Visa gift cards. The winning participants will be notified by email after the study has ended.

Contact: If you have any questions about the study, please contact the study coordinator, Lina Nahlawi, at

Added November 2014

Online IBS Intervention

Purpose: The purpose of this study is to find a complementary treatment to help Irritable Bowel Syndrome patients in need of relief.

Who May Participate:

  • Individuals experiencing pain or discomfort associated with their gut
  • Cannot be smokers or have an inflammatory bowel disease
  • Must be between the ages of 18 – 65 years

About The Study: The length of this study will be three weeks long, with a short online intervention everyday to help individuals deal with their body’s reactions to their environments. Participants will have additional surveys to assess their overall state at the beginning of the study, at the end of the three week intervention, and again at six weeks for a follow-up.

How to Sign Up:

There will be a $15 Target gift card for first 30 participants upon completion of study.

Study Contact: Jenna N. Ray,  Health Psychologist
(919) 257 – 7291

Added September 2014


A research study of IBS patients and their partners.

IBS patients know that their intimate relationships can have an effect on how they are feeling. However, it is not known whether agreement or disagreement regarding issues such as cause of IBS, beliefs about illness, harmony in relationship may have an effect on IBS symptoms. This is an important question that may affect the way IBS is treated.

Our study requires patients to complete 5 brief questionnaires and partners to complete 3 brief questionnaires. Patients and partners will be contacted separately and results will be strictly confidential with no way of identifying subjects.

If patient and partner are willing to participate, please contact:, and links to a secure survey site will be sent individually to both patient and partner, with instructions. From that point on, no identifying information will be stored.

*If you wish to participate, please have patient and partner reply separately and indicate BOTH the name of the name of the patient and the name of the partner (and please clarify who is the patient and who is the partner).

Drs. Charles and Mary-Joan Gerson, The Mind-Body Digestive Center

Added August 2014

Chapel Hill, NC

Healthy Controls Needed for Research Study

We are conducting a research study investigating a broad range of factors that may cause or influence IBS. We are looking for subjects without IBS or any other gastrointestinal (stomach or bowel) symptoms to participate.

Contact: Research Nurse, Lenore Keck, RN, (919) 966.8329, 


  • Must be 18 years or older.
  • Must have not experienced any gastrointestinal symptoms within the last 3 months.
  • Must fill out various health questionnaires & physiological testing
  • Involves one 4 hour visit to the Clinical and Translational Research Center at UNC Hospital.

For more information on how to sign up please visit: Please visit or call toll-free 1-866-227-0067. 

Verified August 2013

Chicago, IL

Center for Psychosocial Research in GI, Feinberg School of Medicine, Northwestern University, Chicago IL is seeking volunteers for an Irritable Bowel Syndrome Outcome Study (IBSOS).

The Irritable Bowel Syndrome Outcome Study (IBSOS) is a seven-year, multi-site clinical trial to test the efficacy of a behavioral self-management treatment for irritable bowel syndrome (IBS) funded by the NIH. The long-term goal of the project is to develop an effective, self-administered behavioral treatment program that can enhance the quality of patient care, improve clinical outcomes, and decrease the economic and personal costs of one of the most prevalent and intractable GI disorders.

This is a multi-center study involving 480 subjects, with 240 subjects participating here at Northwestern University and 240 subjects participating at the University of Buffalo.

Study participants are assigned to 1 of 3 non-drug treatment groups. One group will undergo treatment that will involve 10 weekly clinic visits, while the other 2 groups will undergo treatment with 4 clinic visits and 2 brief telephone calls over the same 10 week period. There follow-up period consisting of 5 visits over the year following treatment.

IBSOS Study Coordinator, Phone: 312-695-6729

Verified August 2013


IBS survey: Impact of IBS on Daily Life

Researchers at Northwestern University are seeking participants with IBS to complete a 20 minute online survey about the impact of IBS on daily life and well-being.

You are eligible if:

  • You are between the ages of 18-70, and
  • You have IBS

If you are interested in completing this survey, please click the link:

Thank you for your interest!

Updated July 2013

IBS survey: Defining the Clinical Features and Prognosis of Post Infectious and other IBS groups.

The European Gastroenterology Federation is undertaking a survey of patients with irritable bowel syndrome. This is a web based survey designed to help learn more about irritable bowel syndrome in order that physicians might better plan treatments and management. Of particular interest is how symptoms develop over time. The study is multilingual and is currently available in nine languages. To participate, go to and click on your language of choice to complete the simple online questionnaire.

Verified August 2013

Los Angeles, CA

Therapeutic Movement as a Complementary Treatment for Irritable Bowel Syndrome (IBS) - UCLA

Participate in a UCLA research study of the benefits of Therapeutic Movement (Therapeutic Yoga & Therapeutic Walking) for Irritable Bowel Syndrome (IBS).

You must be between 18 and 65 years of age and living in the Los Angeles area. If eligible, you will be able to attend 16 Movement Classes, free of charge.

Groups will be held at UCLA on weekday evenings and weekend afternoons. Each session will be around 1 hour in length. The study will offer 16 sessions of their yoga or walking program as a part of participation in the study. The aim is to evaluate if these programs assist with the symptoms of IBS. 

Contact: Phone 310-825-6475 for more information.

Study conducted by David Shapiro, PhD, and Bruce Naliboff, PhD, UCLA Department of Psychiatry. 

Verfied August 2013

New York, NY

IBS: Attachment style, catastrophizing and negative pain beliefs

This is an international study of IBS patients in ten different sites around the globe. It is directed by the Mind-Body Digestive Center in New York City. Patients are asked to complete a set of four questionnaires at the time of their initial visit, recorded anonymously without any patient identification.

The goal of this study is to see if there are any universal patterns, or any intra-country differences in the way that the psycho-social measures above correlate with the severity of symptoms in IBS patients.

Contact: The Mind-Body Digestive Center, directed by Charles Gerson, M.D. and Mary-Jane Gerson, Ph.D.
Telephone: 212-712-0494, Fax: 212-787-0983

Verified Aug 2013




Last modified on January 30, 2015 at 12:01:40 PM