Improving Patient Decisions About Bariatric Surgery

NCT ID: NCT02364128

Last Updated: 2018-09-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

1000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-01-01

Study Completion Date

2018-09-15

Brief Summary

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At least 15 million Americans are morbidly obese, or more than 100 pounds overweight. Medical treatments including drugs and behavior modification have proven ineffective in producing significant and lasting weight loss in this group. While bariatric surgery is extremely effective for most patients, it also carries risks for both short and long-term complications. There are currently four different types of bariatric surgery available and the risks and benefits of these procedures vary widely and are strongly affected by patient and clinical characteristics.

Decision making under these circumstances should reflect informed patient's values and preferences regarding these trade-offs. Instead, the choice of bariatric procedure is more often driven by the beliefs and experiences of the bariatric surgeon that a patient happens to see. Variability in the type of surgery recommended to patients likely results from some combination of surgeons' subjective opinions and personal experiences with regard to the risks and benefits of the treatment options and delegated decision making on the part of patients.

The goals of this research proposal are to develop, implement, and evaluate an informed decision support tool for treatment of morbid obesity. This project will be conducted within the context of the Michigan Bariatric Surgery Collaborative (MBSC), which is a statewide clinical registry and quality improvement program that has the participation of virtually every bariatric surgeon and program in the state of Michigan. The MBSC registry now includes externally audited clinical data for more than 80,000 consecutive bariatric surgery patients. MBSC outcome measures include complications occurring within 30 days as well as weight loss, comorbidity resolution, quality of life and satisfaction at 1, 2, and 3 years after bariatric surgery.

Detailed Description

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Our specific aims are:

1. To develop a web-based interactive decision support tool to incorporate tailored information regarding risks and benefits of the treatment options (from regression-based prediction models derived on the 35,000 patients already in the MBSC registry) with information regarding other salient attributes of the treatment options (derived from focus groups and semi-structured interviews with stakeholders including bariatric surgery patients, bariatric program staff, and surgeons).
2. To perform a quasi-experimental study comparing the decision support tool with usual care to determine its effects on patient decisions (treatment choice, knowledge, treatment-preference concordance, and decisional conflict) and on patient outcomes including weight loss, patient satisfaction, and improvements in quality of life after surgery.

This research is closely aligned with the goals of PCORI and will have direct impacts on patients and caregivers by providing information that is required to improve healthcare decision-making for this prevalent, damaging, and costly condition.

Conditions

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Morbid Obesity Weight Reduction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Control

Potential bariatric surgery patients who receive both the baseline questionnaire and follow-up questionnaire.

Group Type NO_INTERVENTION

No interventions assigned to this group

Decision Aid

Potential bariatric surgery patients who receive both the baseline questionnaire decision aid/conjoint analysis and follow-up questionnaire.

Group Type OTHER

Decider Guider: Weight Loss

Intervention Type BEHAVIORAL

Decision aid tool about weight loss treatment

Interventions

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Decider Guider: Weight Loss

Decision aid tool about weight loss treatment

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* All patients considering undergoing bariatric surgery in the state of Michigan who are 18 or older.
* All patients, regardless of gender or racial/ethnic background, will be recruited to participate in the study in the same way.

Exclusion Criteria

* Patients under the age of 18
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Patient-Centered Outcomes Research Institute

OTHER

Sponsor Role collaborator

University of Michigan

OTHER

Sponsor Role lead

Responsible Party

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Amir Ghaferi

Assistant Professor of Surgery

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Michigan

Ann Arbor, Michigan, United States

Site Status

Countries

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United States

Other Identifiers

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HUM00083670

Identifier Type: -

Identifier Source: org_study_id

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