Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Class |
|---|---|
| Carnegie Mellon University | OTHER |
| Harvard University | OTHER |
| incentaHEALTH | INDUSTRY |
| McKinsey & Company |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
This is a 4-arm, randomized controlled trial to evaluate the effectiveness of financial incentives to motivate and sustain long-term weight loss. The study will recruit eligible employees at a large health management company to participate in a 6-month weight loss program and have weight measurements for an additional 3-month follow-up period. The primary outcome measure in this randomized controlled trial will be pounds of weight lost. The experimental groups will include variations of deposit contracts (participants put their own money at risk, and lose that money if they fail to achieve their weight loss goal) and fixed payments. The use of deposit contracts is a powerful mechanism for inducing behavior change that is based on loss aversion, a psychological concept first described by Nobel Prize winner Daniel Kahneman and Amos Tversky in 1979. A deposit contract takes advantage of the fact that people typically feel the pain of a loss more than the pleasure of a gain, increasing ones motivation to reach a goal.
The study hypotheses are 1) mean weight loss will be greater in all intervention groups compared to the control group by the end of 24 weeks; and 2) individuals in the intervention groups will have a lower mean weight at the end of the 3-month follow-up period than individuals in the control group.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 1 | No Intervention | ||
| 2 | Experimental | Deposit contract with a 1:1 match |
|
| 3 | Experimental | Deposit contract with a 2:1 match |
|
| Experimental 4 | Experimental | Deposit contract with no match |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Deposit contract with a 1:1 match | Behavioral | Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Weight | Change in weight between baseline and 24 weeks | 24 Weeks |
Not provided
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Kevin G. Volpp, MD, PhD | University of Pennsylvania | Study Chair |
| George Loewenstein, PhD | Carnegie Mellon University | Study Director |
| Heather Schofield, MS | Harvard University | Study Director |
| Jeffrey T Kullgren, MD, MPH | University of Pennsylvania | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27445325 | Background | Kullgren JT, Troxel AB, Loewenstein G, Norton LA, Gatto D, Tao Y, Zhu J, Schofield H, Shea JA, Asch DA, Pellathy T, Driggers J, Volpp KG. A Randomized Controlled Trial of Employer Matching of Employees' Monetary Contributions to Deposit Contracts to Promote Weight Loss. Am J Health Promot. 2016 Jul;30(6):441-52. doi: 10.1177/0890117116658210. |
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| FG000 | 1 - Control | Control - no financial incentive or match Participants are given the goal of losing 1 pound per week for 24 weeks are asked to weigh-in monthly with no financial incentive. |
| FG001 | 2 - Deposit Contract With a 1:1 Match | Deposit contract with a 1:1 match Deposit contract with a 1:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| FG002 | 3 - Deposit Contract With a 2:1 Match | Deposit contract with a 2:1 match Deposit contract with a 2:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount twice the amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| FG003 | Experimental 4 - Deposit With no Match | Deposit contract with no match Deposit Contract with no match: Daily weigh-in for 24 weeks and if each daily goal met the daily deposit amount is paid back. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| Title | Milestones | Reasons Not Completed | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
|
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| BG000 | 1 - Control | |
| BG001 | 2 - Deposit Contract With a 1:1 Match | Deposit contract with a 1:1 match Deposit contract with a 1:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Change in Weight | Change in weight between baseline and 24 weeks | Posted | Mean | Standard Deviation | pounds | 24 Weeks |
|
Adverse Event data was collected during the intervention period from May 24, 2011 through March 15, 2012.
Not provided
Not provided
| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | 1 - Control | Control - no financial incentive or match Participants are given the goal of losing 1 pound per week for 24 weeks are asked to weigh-in monthly with no financial incentive. |
Not provided
Not provided
Not provided
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Laurie Norton | University of Pennsylvania School of Medicine | 2155738799 | 215 | lanorton@mail.med.upenn.edu |
Not provided
| ID | Term |
|---|---|
| D015431 | Weight Loss |
| ID | Term |
|---|---|
| D001836 | Body Weight Changes |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
Not provided
Not provided
| UNKNOWN |
Not provided
Not provided
Not provided
Not provided
Not provided
| Deposit contract with a 2:1 match | Behavioral | Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount twice the amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
|
| Deposit Contract with no match | Behavioral | Daily weigh-in for 24 weeks and if each daily goal met the daily deposit amount is paid back. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
|
| Withdrawal by Subject |
|
| BG002 | 3 - Deposit Contract With a 2:1 Match | Deposit contract with a 2:1 match Deposit contract with a 2:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount twice the amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| BG003 | Experimental 4 - Deposit With no Match | Deposit contract with no match Deposit Contract with no match: Daily weigh-in for 24 weeks and if each daily goal met the daily deposit amount is paid back. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| BG004 | Total | Total of all reporting groups |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
Deposit contract with a 2:1 match Deposit contract with a 2:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount twice the amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
| OG003 | Experimental 4 - Deposit With no Match | Deposit contract with no match Deposit Contract with no match: Daily weigh-in for 24 weeks and if each daily goal met the daily deposit amount is paid back. Final weigh-in at 36 weeks with no financial incentive or deposit made. |
|
|
| 0 |
| 33 |
| 0 |
| 33 |
| 0 |
| 33 |
| EG001 | 2 - Deposit Contract With a 1:1 Match | Deposit contract with a 1:1 match Deposit contract with a 1:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. | 0 | 33 | 0 | 33 | 0 | 33 |
| EG002 | 3 - Deposit Contract With a 2:1 Match | Deposit contract with a 2:1 match Deposit contract with a 2:1 match: Daily weigh-in for 24 weeks and if each daily goal met daily deposit amount is paid back with an additional matched amount twice the amount equal to deposited amount. Final weigh-in at 36 weeks with no financial incentive or deposit made. | 0 | 33 | 0 | 33 | 0 | 33 |
| EG003 | Experimental 4 - Deposit Contract With no Match | Deposit contract with no match Deposit Contract with no match: Daily weigh-in for 24 weeks and if each daily goal met the daily deposit amount is paid back. Final weigh-in at 36 weeks with no financial incentive or deposit made. | 0 | 33 | 0 | 33 | 0 | 33 |
Not provided
Not provided