NCT01823458

Brief Summary

Incentives are increasingly being used to motivate health behavior in medical studies. Small cash payments conditional on certain health and welfare promoting behaviors have shown efficacy in both real world and experimental settings. Furthermore, in incentive studies, behavioral economics has been shown to amplify behavior change beyond what is possible with simple cash payments, but little is known about how varying incentive payment design may impact health behavior. The goal of the present study is to evaluate a new incentive payment instrument, lottery insurance, to determine its impact on adherence to the target health behavior, attendance at free exercise classes provided by QueensCare Family Clinics, a safety-net medical clinic.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
152

participants targeted

Target at P75+ for not_applicable type-2-diabetes

Timeline
Completed

Started Apr 2012

Typical duration for not_applicable type-2-diabetes

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

Study Start

First participant enrolled

April 1, 2012

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

March 5, 2013

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 4, 2013

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2014

Completed
Last Updated

April 4, 2017

Status Verified

March 1, 2017

Enrollment Period

2.3 years

First QC Date

March 5, 2013

Last Update Submit

March 31, 2017

Conditions

Type 2 DiabetesObesity

Keywords

behavioral economicsincentiveshealth behaviorexercise

Outcome Measures

Primary Outcomes (1)

  • Attendance at exercise classes

    Attendance at exercise classes over the 12 week session will be analyzed across 'Lottery Insurance' and 'Standard Lottery' arms.

    12 weeks

Secondary Outcomes (4)

  • Body Mass Index

    Change from Baseline Body Mass Index at 12 weeks

  • HbA1c

    Change from Baseline HbA1c at 12 weeks

  • Blood Pressure

    Change from Baseline Blood Pressure at 12 weeks

  • LDL cholesterol

    Change from Baseline LDL at 12 weeks

Study Arms (2)

Lottery Insurance

EXPERIMENTAL

All participants receive a one time, $10 payment for attending the first exercise class of the 12 week session. Participants in the 'Lottery Insurance' arm receive a lottery ticket valued at $20 for attending either a Monday or Tuesday exercise class. They have the option to insure their lottery ticket by attending a second exercise class during the week on either Wednesday or Thursday. If they do not attend the second class, they have a 90% chance of winning the weekly lottery. This sequence is repeated each week over the 12 week exercise session.

Behavioral: Lottery Insurance

Standard Lottery

EXPERIMENTAL

All participants receive a one time, $10 payment for attending the first exercise class of the 12 week session. Subjects in the 'Standard Lottery' arm receive a lottery ticket valued at $20 for attending either a Monday or Tuesday exercise class. They also receive the expected value of the insurance ($2) for attending a second exercise class during the week on either Wednesday or Thursday. They have a 90% chance of winning the weekly lottery. This sequence is repeated each week over the 12 week exercise session.

Behavioral: Standard Lottery

Interventions

Lottery InsuranceBEHAVIORAL
Lottery Insurance
Standard LotteryBEHAVIORAL
Standard Lottery

Eligibility Criteria

Age18 Years - 64 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • to 64 years of age
  • BMI between 25-40
  • Receiving care in QueensCare Family Clinics

You may not qualify if:

  • Failure to obtain exercise clearance from physician

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

QueensCare Family Clinics

Los Angeles, California, 90027, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 2ObesityHealth BehaviorMotor Activity

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesOverweightOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBehavior

Study Officials

  • Jason N Doctor, Ph.D.

    University of Southern California

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 5, 2013

First Posted

April 4, 2013

Study Start

April 1, 2012

Primary Completion

August 1, 2014

Study Completion

August 1, 2014

Last Updated

April 4, 2017

Record last verified: 2017-03

Locations

US(1)