Trial Outcomes & Findings for University Of Pennsylvania Weight Loss Study (NCT NCT01167634)
NCT ID: NCT01167634
Last Updated: 2017-08-23
Results Overview
Change in weight between baseline and 24 weeks
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
132 participants
Primary outcome timeframe
24 Weeks
Results posted on
2017-08-23
Participant Flow
Participant milestones
| Measure |
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.
|
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.
|
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.
|
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.
|
|---|---|---|---|---|
|
Overall Study
STARTED
|
33
|
33
|
33
|
33
|
|
Overall Study
COMPLETED
|
31
|
29
|
30
|
29
|
|
Overall Study
NOT COMPLETED
|
2
|
4
|
3
|
4
|
Reasons for withdrawal
| Measure |
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.
|
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.
|
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.
|
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.
|
|---|---|---|---|---|
|
Overall Study
Lost to Follow-up
|
1
|
3
|
3
|
4
|
|
Overall Study
Withdrawal by Subject
|
1
|
1
|
0
|
0
|
Baseline Characteristics
University Of Pennsylvania Weight Loss Study
Baseline characteristics by cohort
| Measure |
1 - Control
n=33 Participants
|
2 - Deposit Contract With a 1:1 Match
n=33 Participants
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.
|
3 - Deposit Contract With a 2:1 Match
n=33 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.
|
Experimental 4 - Deposit With no Match
n=33 Participants
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.
|
Total
n=132 Participants
Total of all reporting groups
|
|---|---|---|---|---|---|
|
Age, Continuous
|
45.9 years
STANDARD_DEVIATION 9.0 • n=99 Participants
|
44.3 years
STANDARD_DEVIATION 11.5 • n=107 Participants
|
42.0 years
STANDARD_DEVIATION 9.6 • n=206 Participants
|
43.5 years
STANDARD_DEVIATION 9.6 • n=7 Participants
|
43.9 years
STANDARD_DEVIATION 10.0 • n=31 Participants
|
|
Sex: Female, Male
Female
|
27 Participants
n=99 Participants
|
30 Participants
n=107 Participants
|
26 Participants
n=206 Participants
|
32 Participants
n=7 Participants
|
115 Participants
n=31 Participants
|
|
Sex: Female, Male
Male
|
6 Participants
n=99 Participants
|
3 Participants
n=107 Participants
|
7 Participants
n=206 Participants
|
1 Participants
n=7 Participants
|
17 Participants
n=31 Participants
|
PRIMARY outcome
Timeframe: 24 WeeksChange in weight between baseline and 24 weeks
Outcome measures
| Measure |
1 - Control
n=33 Participants
Usual care arm
|
2 - Deposit Contract With a 1:1 Match
n=33 Participants
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.
|
3 - Deposit Contract With a 2:1 Match
n=33 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.
|
Experimental 4 - Deposit With no Match
n=33 Participants
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.
|
|---|---|---|---|---|
|
Change in Weight
|
1.0 pounds
Standard Deviation 7.6
|
-5.3 pounds
Standard Deviation 10.1
|
-2.3 pounds
Standard Deviation 9.8
|
-4.3 pounds
Standard Deviation 8.9
|
Adverse Events
1 - Control
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
2 - Deposit Contract With a 1:1 Match
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
3 - Deposit Contract With a 2:1 Match
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Experimental 4 - Deposit Contract With no Match
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Laurie Norton
University of Pennsylvania School of Medicine
Phone: 2155738799
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place