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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COMPLETED
NA
301 participants
INTERVENTIONAL
2007-08-31
2015-05-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Lifestyle
This Group-Based Lifestyle Intervention (Phases 1 and 2) will be led by lay health counselors (LHCs). The 6-month Phase 1 includes weekly meetings on nutrition and physical activity, psychosocial factors related to health behaviors, and question and answer periods. The 18-month Phase 2 will consist of monthly group meetings and individual telephone contacts. Intervention participants who choose to participate in the study continuation (Phase 3) will be further randomized to receive either extended group or self-directed maintenance. Those who are randomized to receive Extended Group Maintenance (Phase 3) will continue attending monthly meetings; those who receive Self-Directed Maintenance (Phase 3) will no longer attend groups.
Group-Based Lifestyle Intervention (Phases 1 and 2)
This intervention involves a dietary weight loss program and an increase in caloric expenditure through moderate physical activity. The primary treatment objectives for the weight loss component of the intervention will be to decrease caloric intake in a nutritionally sound manner so as to produce a weight loss of approximately 0.3 kg per week for the first 6-months of treatment (Phase 1) for a total weight loss of 5-7%. During Phase 2 (months 7-24) participants will be encouraged to continue weight loss as long as their BMI does not fall below 20 kg/m2, but the primary focus will be on weight maintenance. The primary objective for the physical activity component of the intervention will be to promote an increase in home-based energy expenditure to an eventual goal of 180 min/week.
Self-Directed Maintenance (Phase 3)
Individuals from the lifestyle intervention group in the original HELP PD project who are randomized to self-directed maintenance will receive biannual nutrition counseling from the study RDs. In these sessions, the RD will cover basic aspects of transition from the group maintenance to individual maintenance, answer questions about healthy eating and activity to support weight loss, and discuss existing community resources that may fit the participants' needs as they attempt to maintain their weight loss, physical activity and dietary goals.
Extended Group Maintenance (Phase 3)
The extended group maintenance condition will consist of monthly CHW-led group meetings, monthly individual telephone contacts with the CHW, biannual RD contacts, and other contacts as needed. During Phase 3, the objectives for Phase 2 of the initial program will be continued. That is, participants who were successful at weight loss (≥ 7% of initial body weight) are encouraged to either maintain their weight loss or to advance towards their own personal goals. Participants who were not successful are encouraged to problem solve the reasons for lack of success. The groups will focus on maintaining the healthy behaviors that produced weight loss and/or problem solving to overcome barriers to weight loss.
Comparison
The comparison condition exceeds the usual care provided to similar community members and is an individual education program that builds on an increased awareness of existing community resources. In the initial trial, these subjects will receive two individual sessions with the RD and a monthly newsletter. In the study continuation, comparison participants will receive biannual nutrition counseling and a monthly newsletter.
Individual Education Program (All Phases)
Comparison participants will receive two individual sessions with a nutritionist during the first 3 months. In these sessions, the RD will cover basic aspects of healthy eating and activity to support weight loss, discuss existing community resources and increased physical activity and weight loss. These participants will also receive a monthly newsletter on topics related to healthy lifestyle and will receive the lifestyle intervention manual and video series at the conclusion of their participation. These participants will be approached about the continuation at 24 months. If they agree to participate, these participants will continue to receive a monthly newsletter and will also receive biannual RD contacts.
Interventions
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Group-Based Lifestyle Intervention (Phases 1 and 2)
This intervention involves a dietary weight loss program and an increase in caloric expenditure through moderate physical activity. The primary treatment objectives for the weight loss component of the intervention will be to decrease caloric intake in a nutritionally sound manner so as to produce a weight loss of approximately 0.3 kg per week for the first 6-months of treatment (Phase 1) for a total weight loss of 5-7%. During Phase 2 (months 7-24) participants will be encouraged to continue weight loss as long as their BMI does not fall below 20 kg/m2, but the primary focus will be on weight maintenance. The primary objective for the physical activity component of the intervention will be to promote an increase in home-based energy expenditure to an eventual goal of 180 min/week.
Individual Education Program (All Phases)
Comparison participants will receive two individual sessions with a nutritionist during the first 3 months. In these sessions, the RD will cover basic aspects of healthy eating and activity to support weight loss, discuss existing community resources and increased physical activity and weight loss. These participants will also receive a monthly newsletter on topics related to healthy lifestyle and will receive the lifestyle intervention manual and video series at the conclusion of their participation. These participants will be approached about the continuation at 24 months. If they agree to participate, these participants will continue to receive a monthly newsletter and will also receive biannual RD contacts.
Self-Directed Maintenance (Phase 3)
Individuals from the lifestyle intervention group in the original HELP PD project who are randomized to self-directed maintenance will receive biannual nutrition counseling from the study RDs. In these sessions, the RD will cover basic aspects of transition from the group maintenance to individual maintenance, answer questions about healthy eating and activity to support weight loss, and discuss existing community resources that may fit the participants' needs as they attempt to maintain their weight loss, physical activity and dietary goals.
Extended Group Maintenance (Phase 3)
The extended group maintenance condition will consist of monthly CHW-led group meetings, monthly individual telephone contacts with the CHW, biannual RD contacts, and other contacts as needed. During Phase 3, the objectives for Phase 2 of the initial program will be continued. That is, participants who were successful at weight loss (≥ 7% of initial body weight) are encouraged to either maintain their weight loss or to advance towards their own personal goals. Participants who were not successful are encouraged to problem solve the reasons for lack of success. The groups will focus on maintaining the healthy behaviors that produced weight loss and/or problem solving to overcome barriers to weight loss.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* BMI greater than or equal to 25 kg/m2 but less than 40 kg/m2
* Fasting blood glucose 95-125 mg/dl (inclusive)
* Willingness to Accept Randomization
Exclusion Criteria
* Clinical history of DM, or newly diagnosed DM at screening
* Clinical history of cardiovascular disease (CVD) occurring within the past 6 months, including myocardial infarction, angina, coronary revascularization, stroke, TIA, carotid revascularization, peripheral arterial disease, and congestive heart failure
* Uncontrolled high blood pressure: BP \> 160/100
* Pregnancy, breast feeding, or planning pregnancy within 2 years
* Other chronic disease likely to limit lifespan to less than 2-3 years, including any cancer requiring treatment in past 5 years except non-melanoma skin cancer
* Chronic use of medicine known to significantly affect glucose metabolism, e.g., corticosteroids
* Conditions/criteria likely to interfere with participation and acceptance of randomized assignment, including the following: inability/unwillingness to give informed consent, another household member already randomized to HELP PD, major psychiatric or cognitive problems (schizophrenia, dementia, self-reported active illegal substance or alcohol abuse), and participation in another research study that would interfere with HELP PD
21 Years
ALL
Yes
Sponsors
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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Wake Forest University Health Sciences
OTHER
Responsible Party
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Principal Investigators
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Mara Z Vitolins, DrPH MPH RDN
Role: PRINCIPAL_INVESTIGATOR
Wake Forest University Health Sciences
Locations
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Wake Forest University School of Medicine
Winston-Salem, North Carolina, United States
Countries
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References
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Katula JA, Vitolins MZ, Rosenberger EL, Blackwell C, Espeland MA, Lawlor MS, Rejeski WJ, Goff DC. Healthy Living Partnerships to Prevent Diabetes (HELP PD): design and methods. Contemp Clin Trials. 2010 Jan;31(1):71-81. doi: 10.1016/j.cct.2009.09.002. Epub 2009 Sep 13.
Blackwell CS, Foster KA, Isom S, Katula JA, Vitolins MZ, Rosenberger EL, Goff DC Jr. Healthy Living Partnerships to Prevent Diabetes: recruitment and baseline characteristics. Contemp Clin Trials. 2011 Jan;32(1):40-9. doi: 10.1016/j.cct.2010.10.006. Epub 2010 Oct 23.
Katula JA, Blackwell CS, Rosenberger EL, Goff DC Jr; Healthy Living Partnerships to Prevent Diabetes Research Team. Translating diabetes prevention programs: implications for dissemination and policy. N C Med J. 2011 Sep-Oct;72(5):405-8.
Rosenberger Hale E, Goff DC, Isom S, Blackwell C, Whitt-Glover MC, Katula JA. Relationship of weekly activity minutes to metabolic syndrome in prediabetes: the healthy living partnerships to prevent diabetes. J Phys Act Health. 2013 Jul;10(5):690-8. doi: 10.1123/jpah.10.5.690. Epub 2012 Oct 4.
Katula JA, Vitolins MZ, Rosenberger EL, Blackwell CS, Morgan TM, Lawlor MS, Goff DC Jr. One-year results of a community-based translation of the Diabetes Prevention Program: Healthy-Living Partnerships to Prevent Diabetes (HELP PD) Project. Diabetes Care. 2011 Jul;34(7):1451-7. doi: 10.2337/dc10-2115. Epub 2011 May 18.
Katula JA, Vitolins MZ, Morgan TM, Lawlor MS, Blackwell CS, Isom SP, Pedley CF, Goff DC Jr. The Healthy Living Partnerships to Prevent Diabetes study: 2-year outcomes of a randomized controlled trial. Am J Prev Med. 2013 Apr;44(4 Suppl 4):S324-32. doi: 10.1016/j.amepre.2012.12.015.
Lawlor MS, Blackwell CS, Isom SP, Katula JA, Vitolins MZ, Morgan TM, Goff DC Jr. Cost of a group translation of the Diabetes Prevention Program: Healthy Living Partnerships to Prevent Diabetes. Am J Prev Med. 2013 Apr;44(4 Suppl 4):S381-9. doi: 10.1016/j.amepre.2012.12.016.
Bishop J, Irby MB, Isom S, Blackwell CS, Vitolins MZ, Skelton JA. Diabetes prevention, weight loss, and social support: program participants' perceived influence on the health behaviors of their social support system. Fam Community Health. 2013 Apr-Jun;36(2):158-71. doi: 10.1097/FCH.0b013e318282b2d3.
Beavers KM, Case LD, Blackwell CS, Katula JA, Goff DC Jr, Vitolins MZ. Effects of weight regain following intentional weight loss on glucoregulatory function in overweight and obese adults with pre-diabetes. Obes Res Clin Pract. 2015 May-Jun;9(3):266-73. doi: 10.1016/j.orcp.2014.09.003. Epub 2014 Oct 5.
Miller GD, Isom S, Morgan TM, Vitolins MZ, Blackwell C, Brosnihan KB, Diz DI, Katula J, Goff D. Effects of a community-based weight loss intervention on adipose tissue circulating factors. Diabetes Metab Syndr. 2014 Oct-Dec;8(4):205-11. doi: 10.1016/j.dsx.2014.09.003. Epub 2014 Oct 5.
Pedley CF, Case LD, Blackwell CS, Katula JA, Vitolins MZ. The 24-month metabolic benefits of the healthy living partnerships to prevent diabetes: A community-based translational study. Diabetes Metab Syndr. 2018 May;12(3):215-220. doi: 10.1016/j.dsx.2017.09.011. Epub 2017 Sep 23.
Vitolins MZ, Isom SP, Blackwell CS, Kernodle D, Sydell JM, Pedley CF, Katula JA, Case LD, Goff DC Jr. The healthy living partnerships to prevent diabetes and the diabetes prevention program: a comparison of year 1 and 2 intervention results. Transl Behav Med. 2017 Jun;7(2):371-378. doi: 10.1007/s13142-016-0447-z.
Vitolins MZ, Blackwell CS, Katula JA, Isom SP, Case LD. Long-term Weight Loss Maintenance in the Continuation of a Randomized Diabetes Prevention Translational Study: The Healthy Living Partnerships to Prevent Diabetes (HELP PD) Continuation Trial. Diabetes Care. 2019 Sep;42(9):1653-1660. doi: 10.2337/dc19-0295. Epub 2019 Jul 11.
Other Identifiers
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