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Nutrition TherapyWTENCT01436097

Randomized Trial of Healthy Eating Interventions

A study testing Information provision intervention, information provision + flat incentive and Information provision + tiered incentive in people with Nutrition Therapy, run by University of Pennsylvania at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Interventions to increase the consumption of fruits and vegetables to date have shown promise, but many have limited public health impact due to the lack of scalability of their designs. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Nutrition Therapy
What is being tested?
Information provision intervention, information provision + flat incentive and Information provision + tiered incentive
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteUnited States
Study dates
Oct 2011to Sep 2012
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Current Parkside Brown's Super Stores shoppers who use a Price Plus Card
  • Have regular internet access
  • Spend at least $30 per household member per week on groceries
  • Spend 10% or less of their grocery budget on produce
  • 18 years of age or older
  • weekly grocery shoppers

Who cannot join

  • Plan to move in the next 4 months
  • Plan to stop shopping at Brown's Super Stores in the next 4 months
  • Plan to stop using their Price Plus card in the next 4 months
  • Receive any assistance like SNAP or WIC

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: Financial Incentives for Healthy Eating: A Randomized Pilot Study

Interventions to increase the consumption of fruits and vegetables to date have shown promise, but many have limited public health impact due to the lack of scalability of their designs. The investigators propose to examine the effectiveness and feasibility of an intervention for promoting increased consumption of fruits and vegetables by incentivizing their purchase. Collaborating with UpLift Solutions, the investigators will enroll shoppers in this Randomized Clinical Trial using the research infrastructure called the Way to Health platform. (called the Way to Health platform, and approved as a Prime protocol by the IRB as reference # 811860).

Hypothesis: providing patients with financial incentives can promote healthier behaviors (e.g.: eating healthier).

Read the detailed description

This is a pilot study under the IRB-approved umbrella protocol number 811698 named Penn-CMU Roybal Center on Behavioral Economics and Health. Interventions to increase the consumption of fruits and vegetables to date have shown promise, but many have limited public health impact due to the lack of scalability of their designs. Many interventions only provided information on what constitutes healthier eating or provided discounts on specific products.Other interventions were limited in generalizability due to utilization of very specific eating establishments or vending machines.By contrast, the investigators propose to examine the effectiveness and feasibility of an intervention for promoting increased consumption of fruits and vegetables by incentivizing their purchase where the overwhelming majority of food is sold: grocery stores. Collaborating with Brown's Super Stores and UpLift Solutions leadership, the investigators will enroll shoppers in this Randomized Clinical Trial using our the web-based research infrastructure called the Way to Health platform.

The primary aim of this project is to generate preliminary evidence of the efficacy of two financial incentive structures in promoting the allocation of a greater percentage of ones grocery budget to the purchase of fresh fruits and vegetables (hereafter, produce). Secondary aims are to evaluate these interventions effects on (1) self-reported consumption of produce, and (2) weight. Salutary goals of this pilot study are to document feasibility of using Price Plus cards for incentive studies, and to expand the functionality of the Way Health platform.

Being tested
Information provision intervention, information provision + flat incentive, Information provision + tiered incentive, Usual Care
Keywords
Healthy Eating, Health Behavior, Incentive, Work-site
Medical subject headings
Health Behavior

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Information provision interventionBehavioural

    Participant will have access to weekly data showing how much produce they are purchasing. No incentives will be given under this arm. They will also receiving information on weekly purchases, online resources, and weekly reminders on eating healthy.

  • information provision + flat incentiveBehavioural

    Participants will earn back 15% of what they spent on groceries for the week if they spend at least 15% of their total grocery budget on fresh produce in addition to receiving the same treatment as the IP arm. They will also receiving information on weekly purchases, online resources, and weekly reminders on eating healthy.

  • Information provision + tiered incentiveBehavioural

    In addition to receiving information on weekly purchases, online resources, and weekly reminders on eating healthy the participants assigned to the IP + tiered incentive group would earn back increasing percentages of their grocery spending for meeting increasing targets of produce consumption.

  • Usual CareBehavioural

    Participants will have access through the Way to Health portal to web-based educational materials and recipes related to healthy eating. They will be informed they will receive up to $50 in reimbursements for completing the surveys that are part of the Way To Eat program as follows: $20 for completing the intake questionnaire and weigh-in and $30 reimbursements for completing the exit questionnaire and weigh-in.

Study groups in NCT01436097
Study groupRoleWhat they receive
Usual Care armActive comparatorParticipants will have access through the Way to Health portal to web-based educational materials and recipes related to healthy eating. They will be informed they will receive up to $50 in reimbursements for completing the surveys that are part of the Way To Eat program as follows: $20 for completing the intake questionnaire and weigh-in and $30 reimbursements for completing the exit questionnaire and weigh-in.
Receives: Behavioral: Usual Care
Information provision interventionExperimentalParticipants in the Information provision group will receive the same care as those in the Usual Care arm. In addition, the Information provision group participants will receive weekly reminders about the benefits of eating five servings of fruits and vegetables a day and their Way to Health portal will provide graphical depictions of their produce purchase proportions through information from their Price Plus card. This data will be available to them throughout the entire intervention.
Receives: Behavioral: Information provision intervention
Information provision + flat incentiveExperimentalParticipants assigned to the Information provision + flat group will earn back 15% of what they spent on groceries for the week if they spend at least 15% of their total grocery budget on fresh produce in addition to receiving the same treatment as the Information provision arm.
Receives: Behavioral: information provision + flat incentive
Information provision + tiered incentiveExperimentalIn addition to receiving all features of the Information provision treatment the participants assigned to the Information provision + tiered incentive group would earn back increasing percentages of their grocery spending for meeting increasing targets of produce consumption. In this arm, the more participants spend on produce the more money they can earn back.
Receives: Behavioral: Information provision + tiered incentive

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes from baseline in proportion of fruit and vegetable purchases

    Changes from baseline in proportion of grocery money that is spent on fruits and vegetables each week for 12 weeks across each intervention group. Fruits and vegetables, or produce, will be defined by the food product itself, not its location in the store. Produce in this study will include frozen and canned fruits and vegetables as well as fresh fruits and vegetables.

    Measured: weekly for 3 months

Secondary outcomes (2)
  1. Changes from baseline in self-reported consumption of fruits and vegetables

    Changes from baseline in self-reported consumption of fruits and vegetables each week for 12 weeks across each intervention.

    Measured: weekly for 3 months

  2. Changes in body weight from baseline to end of treatment (12 weeks after intervention start)

    Changes in body weight from baseline to end of treatment (12 weeks after intervention start; pre- and post- intervention).

    Measured: Baseline and an average of 12-14 weeks after intervention start

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Sep 2011 (estimated)
  2. Study startOct 2011
  3. Primary completionSep 2012
  4. Study completionSep 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01436097
Sponsor's protocol ID
WTE-814279
Other IDs
RC2AG036592
Acronym
WTE
Status last verified
Jan 2013
First submitted
14 Sep 2011
Last updated
15 Jan 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Appel LJ, Moore TJ, Obarzanek E, Vollmer WM, Svetkey LP, Sacks FM, Bray GA, Vogt TM, Cutler JA, Windhauser MM, Lin PH, Karanja N. A clinical trial of the effects of dietary patterns on blood pressure. DASH Collaborative Research Group. N Engl J Med. 1997 Apr 17;336(16):1117-24. doi: 10.1056/NEJM199704173361601.

    PubMed 9099655
  • Lin, B. Diet Quality Usually Varies by Income Status. Washington, DC: U.S. Department of Agriculture, Economic Research Service. Amber Wave, 3(5), 2005.

  • Morland K, Wing S, Diez Roux A, Poole C. Neighborhood characteristics associated with the location of food stores and food service places. Am J Prev Med. 2002 Jan;22(1):23-9. doi: 10.1016/s0749-3797(01)00403-2.

    PubMed 11777675
  • Blisard, N & Stewart, H. Food Spending in American Households, 2003-04. Economic Information Bulletin 59033, United States Department of Agriculture, Economic Research Service 2007.

  • Blair SN, Jacobs DR Jr, Powell KE. Relationships between exercise or physical activity and other health behaviors. Public Health Rep. 1985 Mar-Apr;100(2):172-80.

    PubMed 3920715
  • Coulson NS, Eiser C, Eiser JR. Diet, smoking and exercise: interrelationships between adolescent health behaviours. Child Care Health Dev. 1997 May;23(3):207-16. doi: 10.1111/j.1365-2214.1997.tb00964.x.

    PubMed 9158910
  • Basiotis, PP, Carlson, A, Gerrior, SA, Juan, WY, & Lino, M. Nutrition Insight 28: Report Card on the Quality of Americans' Diets. Family Economics and Nutrition Review 16(2): 66-68, 2004.

  • Garasky, S, Morton, LW, & Greder, K. The Food Environment and Food Insecurity: Perceptions of Rural, Suburban, and Urban Food Pantry Clients in Iowa. Family Economics and Nutrition Review 16(2): 41-48, 2004.

  • Seymour JD, Yaroch AL, Serdula M, Blanck HM, Khan LK. Impact of nutrition environmental interventions on point-of-purchase behavior in adults: a review. Prev Med. 2004 Sep;39 Suppl 2:S108-36. doi: 10.1016/j.ypmed.2004.04.002.

    PubMed 15313080
  • Kristal AR, Goldenhar L, Muldoon J, Morton RF. Evaluation of a supermarket intervention to increase consumption of fruits and vegetables. Am J Health Promot. 1997 Jul-Aug;11(6):422-5. doi: 10.4278/0890-1171-11.6.422.

    PubMed 10168262
  • French SA, Wechsler H. School-based research and initiatives: fruit and vegetable environment, policy, and pricing workshop. Prev Med. 2004 Sep;39 Suppl 2:S101-7. doi: 10.1016/j.ypmed.2003.10.007.

    PubMed 15313079
  • Glanz K, Hoelscher D. Increasing fruit and vegetable intake by changing environments, policy and pricing: restaurant-based research, strategies, and recommendations. Prev Med. 2004 Sep;39 Suppl 2:S88-93. doi: 10.1016/j.ypmed.2004.03.002.

    PubMed 15313077
  • French SA, Jeffery RW, Story M, Breitlow KK, Baxter JS, Hannan P, Snyder MP. Pricing and promotion effects on low-fat vending snack purchases: the CHIPS Study. Am J Public Health. 2001 Jan;91(1):112-7. doi: 10.2105/ajph.91.1.112.

    PubMed 11189801
  • Basiotis, PP, Carlson, A, Gerrior, SA, Juan, WY, & Lino, M. The Healthy Eating Index: 1999-2000. U.S. Department of Agriculture, Center for Nutrition Policy and Promotion. CNPP-12, 2002

  • Lin, BH, Yen, ST, Dong, D, & Smallwood, DM. Economic incentives for dietary improvement among food stamp recipients. Contemporary Economic Policy 28 (4): 524-536, 2010

Questions about this trial

What is this clinical trial studying?

A study testing Information provision intervention, information provision + flat incentive and Information provision + tiered incentive in people with Nutrition Therapy, run by University of Pennsylvania at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Jan 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes from baseline in proportion of fruit and vegetable purchases (time frame: weekly for 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01436097, which also lists 22 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Jan 2013.

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