NCT00510744

Brief Summary

Hypothesis: Bypass of the upper GI tract with bariatric surgery results in suppression of pancreatic function resulting in maldigestion and further malabsorption. In this study we will measure pancreatic secretion in previously obese gastric bypass patients with excessive weight loss. If malabsorption is associated with diminished pancreatic secretion, we will test over a 3 month period whether supplementation with enzyme supplements prevent further weight loss.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started Aug 2007

Longer than P75 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 1, 2007

Completed
Same day until next milestone

Study Start

First participant enrolled

August 1, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

August 2, 2007

Completed
7.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2015

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2015

Completed
10 months until next milestone

Results Posted

Study results publicly available

June 2, 2016

Completed
Last Updated

June 2, 2016

Status Verified

April 1, 2016

Enrollment Period

7.9 years

First QC Date

August 1, 2007

Results QC Date

April 26, 2016

Last Update Submit

April 26, 2016

Conditions

Keywords

obesity, bariatric surgery, pancreatic secretion

Outcome Measures

Primary Outcomes (1)

  • Fat Absorption

    72 hour fat absorption study

    3 months

Study Arms (1)

pancreatic enzyme supplementation

EXPERIMENTAL

3 month supplementation in those gastric bypass patients shown to have a fat absorption less than 80%

Drug: pancreatic enzyme supplement

Interventions

4 caps with meals, 2 with snacks

Also known as: Creon
pancreatic enzyme supplementation

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female adults \>18yrs
  • h/o Roux-en-Y gastric bypass procedure
  • Pre-surgery BMI \>40Kg/m2
  • Weight loss of \>30%, or 100lbs in 1st year following bypass surgery
  • Able to consume normal requirement levels of food. This will be determined from history (see above) and confirmed during the 72h food-balance study in the GCRC.

You may not qualify if:

  • Chronic pancreatic disease as evidenced by history, pancreatic imaging (CT or MRP scanning or ERCP) or alcohol abuse (\>3 units of alcohol/day) as documented by family or care givers
  • h/o intestinal resection other than gastric bypass
  • Unstable cardio-respiratory status (BP diastolic \>100mmHg, systolic \>200 or \<80 mmHg), ambient pO2 \<90%
  • Presence of chronic inflammatory bowel or chronic small intestinal mucosal disease confirmed by radiology and biopsy.
  • Current history of feeding disorder, such as bulimia nervosa. This will be excluded by the interview and attestation of spouses, close relatives, or home companions
  • Pregnant women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pittsburgh GCRC

Pittsburgh, Pennsylvania, 15213, United States

Location

MeSH Terms

Conditions

Obesity

Interventions

Pancrelipase

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

LipaseCarboxylic Ester HydrolasesEsterasesHydrolasesEnzymesEnzymes and CoenzymesPancreatic ExtractsTissue ExtractsComplex Mixtures

Results Point of Contact

Title
Stephen O'Keefe
Organization
University of Pittsburgh

Study Officials

  • Stephen J O'Keefe, MD

    University of Pittsburgh

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Medicine

Study Record Dates

First Submitted

August 1, 2007

First Posted

August 2, 2007

Study Start

August 1, 2007

Primary Completion

July 1, 2015

Study Completion

August 1, 2015

Last Updated

June 2, 2016

Results First Posted

June 2, 2016

Record last verified: 2016-04

Data Sharing

IPD Sharing
Will share

with publication

Locations