Study Results
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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UNKNOWN
NA
440 participants
INTERVENTIONAL
2007-07-31
2010-07-31
Brief Summary
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Detailed Description
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Secondary aims of this study involve describing the characteristics associated with greater weight loss and maintenance in each of the two intervention arms. The hypothesis to be tested is that selected participant characteristics, such as older or younger age, might be differentially associated with greater success across the two types of programs and approaches.
Notably, the results of this study would contribute valuable data to the scientific knowledge base regarding the various modalities of communication for behavioral interventions (in-person versus telephone counseling). This is an important issue currently being considered and debated among clinical and community-based behavioral and nutritional scientists whose intervention efforts focus on promoting behavior change and positive effects on health-related outcomes such as weight reduction.
Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Commercial program at center
Commercial weight loss program
Active weekly participation until weight loss goals are reached, and monthly participation to maintain the weight loss.
Commercial program over the telephone
Commercial weight loss program
Active weekly participation until weight loss goals are reached, and monthly participation to maintain the weight loss.
Usual care
Weight loss counseling
Usual care
Two individualized weight loss counseling sessions with a dietetics professional, and monthly contacts to maintain communications.
Interventions
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Usual care
Two individualized weight loss counseling sessions with a dietetics professional, and monthly contacts to maintain communications.
Commercial weight loss program
Active weekly participation until weight loss goals are reached, and monthly participation to maintain the weight loss.
Eligibility Criteria
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Inclusion Criteria
* Initial BMI \>25.0 kg/m2 and \<40 kg/m2
* A minimum of 15 kg over ideal weight as defined by the 1983 Metropolitan Life Insurance tables
* Willing and able to participate in clinic visits and JC facility interactions at specified intervals and to maintain contact with the investigators for 24 months
* Willing to allow blood collections
* Capable of performing a simple test for assessing cardiopulmonary fitness
Exclusion Criteria
* A history or presence of a comorbid diseases for which diet modification and increased physical activity may be contraindicated
* Self-reported pregnancy or breastfeeding or planning a pregnancy within the next two years
* Currently actively involved in another diet intervention study or organized weight loss program
* Having a history or presence of a significant psychiatric disorder or any other condition that, in the investigator's judgment, would interfere with participation in the trial
18 Years
FEMALE
Yes
Sponsors
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Jenny Craig, Inc.
INDUSTRY
Responsible Party
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University of California, San Diego
Principal Investigators
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Cheryl L Rock, PhD, RD
Role: PRINCIPAL_INVESTIGATOR
UCSD
Locations
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University of California, San Diego
La Jolla, California, United States
Countries
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References
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Dow CA, Thomson CA, Flatt SW, Sherwood NE, Pakiz B, Rock CL. Predictors of improvement in cardiometabolic risk factors with weight loss in women. J Am Heart Assoc. 2013 Dec 18;2(6):e000152. doi: 10.1161/JAHA.113.000152.
Thomson CA, Morrow KL, Flatt SW, Wertheim BC, Perfect MM, Ravia JJ, Sherwood NE, Karanja N, Rock CL. Relationship between sleep quality and quantity and weight loss in women participating in a weight-loss intervention trial. Obesity (Silver Spring). 2012 Jul;20(7):1419-25. doi: 10.1038/oby.2012.62. Epub 2012 Mar 8.
Rock CL, Emond JA, Flatt SW, Heath DD, Karanja N, Pakiz B, Sherwood NE, Thomson CA. Weight loss is associated with increased serum 25-hydroxyvitamin D in overweight or obese women. Obesity (Silver Spring). 2012 Nov;20(11):2296-301. doi: 10.1038/oby.2012.57. Epub 2012 Mar 8.
Rock CL, Flatt SW, Sherwood NE, Karanja N, Pakiz B, Thomson CA. Effect of a free prepared meal and incentivized weight loss program on weight loss and weight loss maintenance in obese and overweight women: a randomized controlled trial. JAMA. 2010 Oct 27;304(16):1803-10. doi: 10.1001/jama.2010.1503. Epub 2010 Oct 9.
Other Identifiers
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20073396
Identifier Type: -
Identifier Source: org_study_id