Gastroparesis Registry 2 (GpR2)

This study is currently recruiting participants. (see Contacts and Locations)
Verified October 2015 by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Information provided by (Responsible Party):
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Identifier:
First received: September 27, 2012
Last updated: October 6, 2015
Last verified: October 2015

To expand a registry of patients for the study of the epidemiology, etiology, and degree of morbidity associated with gastroparesis.

Diabetic Gastroparesis
Idiopathic Gastroparesis

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: GpR 2: Continuation of the NIDDK Gastroparesis Registry for the Characterization and Clinical Course of Gastroparesis Patients

Further study details as provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):

Biospecimen Retention:   Samples With DNA

plasma serum DNA

Estimated Enrollment: 500
Study Start Date: July 2012
Estimated Study Completion Date: September 2017
Estimated Primary Completion Date: August 2017 (Final data collection date for primary outcome measure)
participants with a primary etiology of diabetic gastroparesis
participants with a primary etiology of idiopathic gastroparesis
participants with a primary etiology of post-Nissen fundoplication gastroparesis

Detailed Description:

The Gastroparesis Registry 2 (GpR 2) will enroll new patients and patients from the initial NIDDK Gastroparesis Clinical Research Consortium Gastroparesis Registry (GpR) of gastroparesis patients which was initiated in February 2007 and completed in March 2011.

To continue to follow and expand the data collections of a well-characterized cohort to further define the natural history and clinical course of gastroparesis.

To provide a reliable source for recruitment of well-characterized patients with gastroparesis for therapeutic clinical trials, pathophysiological, molecular, histopathologic, or other ancillary studies. These subsequent clinical trials or ancillary studies will be conducted under separate study protocols with separate consent processes.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

This study will enroll patients with gastroparesis and delayed gastric emptying. These patients can have either diabetic, idiopathic, or post-Nissen fundoplication gastroparesis. In addition, patients with symptoms similar to gastroparesis, but with normal gastric emptying will be enrolled as a reference group.


Inclusion Criteria:

  • Symptoms of gastroparesis of at least 12 weeks duration (do not have to be contiguous) with varying degrees of nausea, vomiting, early satiety, post-prandial fullness, and/or abdominal pain
  • An etiology of either diabetic, idiopathic, or post-Nissen fundoplication gastroparesis
  • Gastric emptying scintigraphy of solids and liquids test using 4 hours Egg Beaters® protocol within the last 6 months with either:

    • Abnormal gastric emptying rate defined as an abnormal 2 hour (>60% retention) and/or 4 hour (>10% retention) result based on a 4-hour scintigraphic low fat Egg Beaters® gastric emptying study performed at a GpCRC clinical center.
    • Patients with a normal gastric emptying rate but with symptoms of gastroparesis may be enrolled and classified as possible gastroparesis or gastroparesis-like with normal gastric emptying
  • Age at least 18 years at initial screening visit
  • Upper endoscopy results within last 2 years

Exclusion Criteria:

  • Inability to comply with or complete the gastric emptying scintigraphy test (including allergy to eggs)
  • Presence of other conditions that could explain the patient's symptoms:
  • Pyloric or intestinal obstruction as determined by endoscopy, upper GI series or abdominal CT scan
  • Active inflammatory bowel disease
  • Known eosinophilic gastroenteritis
  • Primary neurological conditions that could cause nausea and/or vomiting such as increased intracranial pressure, space occupying or inflammatory/infectious lesions
  • Acute liver failure
  • Advanced liver disease (Child's B or C; a Child-Pugh-Turcotte (CPT) score of ≥7 )
  • Acute renal failure
  • Chronic renal failure (serum creatinine >3 mg/dL) and/or on hemodialysis or peritoneal dialysis
  • Total or subtotal (near complete) gastric resection, esophagogastrostomy, gastrojejunostomy, or gastric bypass. Note: patients with prior fundoplication will be eligible for enrollment.
  • Any other plausible structural or metabolic cause
  • Any other condition, which in the opinion of the investigator would interfere with study requirements
  • Inability to obtain informed consent
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01696747

United States, California
California Pacific Medical Center Recruiting
San Francisco, California, United States, 94115
Contact: William Snape, MD    415-600-1138   
Contact: Candice Lee    (415) 600-1155   
Sub-Investigator: William Snape, MD         
Stanford University Recruiting
Stanford, California, United States, 94305-5187
Contact: Linda Nguyen, MD    650-725-3362   
Contact: Ankita Dubey    (650) 721-2665   
Sub-Investigator: Linda B Nguyen, MD         
United States, Kentucky
University of Louisville Recruiting
Louisville, Kentucky, United States, 40202
Contact: Thomas Abell, MD    502-852-7963   
Contact: Karen Beatty, RN    (502) 540-1428   
Principal Investigator: Thomas Abell, MD         
United States, Maryland
Johns Hopkins Bayview Medical Center Recruiting
Baltimore, Maryland, United States, 21224
Contact: Pankaj Pasricha, MD    410-550-6871   
Contact: Yale Kim, MSH    (410) 550-6871   
Principal Investigator: Pankaj J Pasricha, MD         
United States, Michigan
University of Michigan Medical Center Recruiting
Ann Arbor, Michigan, United States, 48109
Contact: William L Hasler, MD    734-936-8644   
Contact: Nara Wootten    (734) 615-6723   
Principal Investigator: William L Hasler, MD         
United States, North Carolina
Wake Forest University Health Sciences Recruiting
Winston-Salem, North Carolina, United States, 27157
Contact: Kenneth L Koch, MD    336-713-7333   
Contact: Anya Brown    (336) 716-4325   
Principal Investigator: Kenneth L Koch, MD         
United States, Pennsylvania
Temple University Hospital Recruiting
Philadelphia, Pennsylvania, United States, 19140
Contact: Henry P Parkman, MD    215-707-7579   
Contact: Amiya Palit    215-707-5477   
Principal Investigator: Henry P Parkman, MD         
United States, Texas
Texas Tech University Health Sciences Center Recruiting
El Paso, Texas, United States, 79905
Contact: Richard W McCallum, MD    915-545-6618   
Contact: Natalia Vega, RN    (915) 545-7399   
Principal Investigator: Richard W McCallum, MD         
Sub-Investigator: Irene Sarosiek, MD         
Sponsors and Collaborators
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Study Director: Frank Hamilton, MD, MPH National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  More Information

Additional Information:
No publications provided

Responsible Party: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Identifier: NCT01696747     History of Changes
Other Study ID Numbers: GpCRC-GpR 2-5
Study First Received: September 27, 2012
Last Updated: October 6, 2015
Health Authority: United States: Federal Government

Keywords provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):
idiopathic gastroparesis
diabetic gastroparesis
post-Nissen gastroparesis

Additional relevant MeSH terms:
Digestive System Diseases
Gastrointestinal Diseases
Neurologic Manifestations
Signs and Symptoms
Stomach Diseases processed this record on October 09, 2015