Extending Contingency Management's Benefits With Progressively Increasing Variable Interval Prize Reinforcement

This study has been completed.

Sponsor:

Collaborator:

National Institute on Drug Abuse (NIDA)

Information provided by (Responsible Party):

University of Connecticut Health Center

ClinicalTrials.gov Identifier:

NCT01184040

First received: August 10, 2010

Last updated: June 14, 2012

Last verified: June 2012

History of Changes

Purpose

Contingency Management (CM) is highly effective in promoting recovery from substance use disorders, but benefits tend to attenuate over time when CM is discontinued. Identifying modifications of CM delivery that can extend its benefits is an important goal. The goal of this study is to evaluate the use of reinforcements to increase physical activity, specifically walking. The study provides a standard CM intervention to promote walking for three weeks. After three weeks, a progressively increasing variable interval schedule of reinforcement will be evaluated for increasing the durability of effects of the initial CM intervention. We hypothesize that Variable Interval Prize Contingency Management will result in greater adherence to a walking goal of 10,000 steps per day at Week 15 and Week 24 compared to the Control Condition.

Condition	Intervention	Phase
Exercise Addictive Behaviors	Behavioral: VIP CM	Phase 2

Study Type:	Interventional
Study Design:	Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Open Label Primary Purpose: Treatment
Official Title:	Extending Contingency Management's Benefits With Progressively Increasing Variable Interval Prize Reinforcement

Resource links provided by NLM:

MedlinePlus related topics: Exercise and Physical Fitness

U.S. FDA Resources

Further study details as provided by University of Connecticut Health Center:

Primary Outcome Measures:

number of steps walked in seven days prior to follow up assessment, as verified by the pedometer [ Time Frame: week 15 ] [ Designated as safety issue: No ]
number of steps walked in seven days prior to follow up assessment, as verified by the pedometer [ Time Frame: week 24 ] [ Designated as safety issue: No ]

Enrollment:	61
Study Start Date:	May 2010
Study Completion Date:	March 2012
Primary Completion Date:	March 2012 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
No Intervention: (A) Non-contingent control Participants assigned to the control condition will be told to wear the pedometer daily and select a twice-weekly meeting schedule with research staff for 12 weeks (study weeks 4-15). On days randomly selected as meeting days, participants will be asked to bring in their pedometers. Participants who attend their scheduled meetings will receive a $5 gift card just for attending and bringing the pedometer, so long as it has registered steps walked in at least the past 4 days. They will be congratulated if they walked 10,000 steps or more on the prior 4 days, and encouraged to walk 10,000 steps or more per day on subsequent days.
Experimental: VIP CM Participants assigned to Increasing Variable Interval Prize (VIP) Reinforcement group will be scheduled for the same study visits as those in the Control group, but will also earn chances to win prizes if they have walked more than 10,000 steps in the past 4 days.	Behavioral: VIP CM Participants will receive progressively increasing CM for walking 10,000 steps per day over 4 days prior to visit as verified by the pedometer.

Arms

Assigned Interventions

No Intervention: (A) Non-contingent control

Participants assigned to the control condition will be told to wear the pedometer daily and select a twice-weekly meeting schedule with research staff for 12 weeks (study weeks 4-15). On days randomly selected as meeting days, participants will be asked to bring in their pedometers. Participants who attend their scheduled meetings will receive a $5 gift card just for attending and bringing the pedometer, so long as it has registered steps walked in at least the past 4 days. They will be congratulated if they walked 10,000 steps or more on the prior 4 days, and encouraged to walk 10,000 steps or more per day on subsequent days.

Experimental: VIP CM

Participants assigned to Increasing Variable Interval Prize (VIP) Reinforcement group will be scheduled for the same study visits as those in the Control group, but will also earn chances to win prizes if they have walked more than 10,000 steps in the past 4 days.

Behavioral: VIP CM

Participants will receive progressively increasing CM for walking 10,000 steps per day over 4 days prior to visit as verified by the pedometer.

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

age > 18 years
currently not physically active
Physically able and willing to walk 10,000 steps per day

Exclusion Criteria:

psychiatric or physical illness that could interfere with participation

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT01184040

Locations

United States, Connecticut
UConn Heatlh Center
Farmington, Connecticut, United States, 06030-3944

Sponsors and Collaborators

University of Connecticut Health Center

National Institute on Drug Abuse (NIDA)

Investigators

Principal Investigator:

Nancy M Petry, Ph.D.

University of Connecticut Health Center

More Information

No publications provided

Responsible Party:	University of Connecticut Health Center
ClinicalTrials.gov Identifier:	NCT01184040 History of Changes
Other Study ID Numbers:	10-249-1, 1P30DA023918-01A1
Study First Received:	August 10, 2010
Last Updated:	June 14, 2012
Health Authority:	United States: Institutional Review Board

Additional relevant MeSH terms:

Behavior, Addictive
Compulsive Behavior
Impulsive Behavior

ClinicalTrials.gov processed this record on May 22, 2013

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