Testing the Effectiveness of Different Messaging Approaches to Increase Doctor Visits Amongst Individuals With Risk Factors for Diabetes
1 other identifier
interventional
5,000
1 country
1
Brief Summary
The purpose of the research is to test the effectiveness of different messaging approaches to nudge members of Vitality and Discovery Health, with risk factors for diabetes (based on data from the Vitality Health Check and Vitality Age assessment), to visit a doctor and test for diabetes. The messages are based on concepts from behavioural economics that aim to make information on screening more salient by using the concept of social proof (person like you) and an authoritative source (a diabetes specialist and the Vitality doctor).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable type-2-diabetes
Started Aug 2022
Shorter than P25 for not_applicable type-2-diabetes
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 4, 2022
CompletedFirst Submitted
Initial submission to the registry
February 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 3, 2023
CompletedFirst Posted
Study publicly available on registry
March 6, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
May 15, 2023
CompletedMarch 31, 2023
March 1, 2023
7 months
February 1, 2023
March 30, 2023
Conditions
Outcome Measures
Primary Outcomes (3)
Fasting blood glucose (mmol/L)
Type 2 Diabetes
8 weeks
Glucose tolerance test (mmol/L)
Type 2 Diabetes
8 weeks
HbA1C(%)
Pre-Diabetes
8 weeks
Study Arms (3)
Diabetes specialist
EXPERIMENTALMessage with a note from a diabetes specialist
Someone like you
EXPERIMENTALMessage with a note from "a person like you"
Vitality doctor
EXPERIMENTALMessage with a note from the Vitality doctor
Interventions
Test messages based on concepts from behavioural economics that aim to make information on screening more salient by using the concept of social proof (person like you) and an authoritative source (a diabetes specialist)
Eligibility Criteria
You may qualify if:
- Members of Vitality who are also members of the Discovery Health medical plan and who have risk factors for diabetes but who have not previously been diagnosed with diabetes
- Risk factors are age ≥45years, overweight and obesity, family history of diabetes, hypertension or raised high blood pressure, low levels of physical activity, cardiovascular disease, and dyslipidemia.
You may not qualify if:
- \< 18 years \>= 65 years
- Diagnosed with diabetes
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Wits Health Consortium (Pty) Ltdlead
- Discovery Vitalitycollaborator
Study Sites (1)
Discovery Vitality
Johannesburg, Gauteng, 2007, South Africa
Related Publications (22)
Polonsky KS. The past 200 years in diabetes. N Engl J Med. 2012 Oct 4;367(14):1332-40. doi: 10.1056/NEJMra1110560. No abstract available.
PMID: 23034021BACKGROUNDPheiffer C, Pillay-van Wyk V, Turawa E, Levitt N, Kengne AP, Bradshaw D. Prevalence of Type 2 Diabetes in South Africa: A Systematic Review and Meta-Analysis. Int J Environ Res Public Health. 2021 May 30;18(11):5868. doi: 10.3390/ijerph18115868.
PMID: 34070714BACKGROUNDStamler J, Vaccaro O, Neaton JD, Wentworth D. Diabetes, other risk factors, and 12-yr cardiovascular mortality for men screened in the Multiple Risk Factor Intervention Trial. Diabetes Care. 1993 Feb;16(2):434-44. doi: 10.2337/diacare.16.2.434.
PMID: 8432214BACKGROUNDNathan DM. Long-term complications of diabetes mellitus. N Engl J Med. 1993 Jun 10;328(23):1676-85. doi: 10.1056/NEJM199306103282306. No abstract available.
PMID: 8487827BACKGROUNDFong DS, Aiello L, Gardner TW, King GL, Blankenship G, Cavallerano JD, Ferris FL 3rd, Klein R; American Diabetes Association. Retinopathy in diabetes. Diabetes Care. 2004 Jan;27 Suppl 1:S84-7. doi: 10.2337/diacare.27.2007.s84. No abstract available.
PMID: 14693935BACKGROUNDThe Society for Endocrinology, Metabolism and Diabetes of South Africa Type 2 Diabetes Guidelines Expert Committee. Chapter 3: Screening and diagnosis of type 2 diabetes and intermediate hyperglycaemia "Chapter Title" in 2017 SEMDSA Guideline for the Management of Type 2 Diabetes Guideline Committee. JEMDSA 2017; 21(1)(Supplement 1): S1-S196.
BACKGROUNDAmerican Diabetes Association. Standards of medical care in diabetes--2013. Diabetes Care. 2013 Jan;36 Suppl 1(Suppl 1):S11-66. doi: 10.2337/dc13-S011. No abstract available.
PMID: 23264422BACKGROUNDDefinitions and Diagnosis of Diabetes Mellitus and Intermediate Hyperglycemeia: Report of the WHO/IDF Consultation. Geneva: World Health Organisation, 2006
BACKGROUNDGerstein HC, Santaguida P, Raina P, Morrison KM, Balion C, Hunt D, Yazdi H, Booker L. Annual incidence and relative risk of diabetes in people with various categories of dysglycemia: a systematic overview and meta-analysis of prospective studies. Diabetes Res Clin Pract. 2007 Dec;78(3):305-12. doi: 10.1016/j.diabres.2007.05.004. Epub 2007 Jun 29.
PMID: 17601626BACKGROUNDKnowler WC, Barrett-Connor E, Fowler SE, Hamman RF, Lachin JM, Walker EA, Nathan DM; Diabetes Prevention Program Research Group. Reduction in the incidence of type 2 diabetes with lifestyle intervention or metformin. N Engl J Med. 2002 Feb 7;346(6):393-403. doi: 10.1056/NEJMoa012512.
PMID: 11832527BACKGROUNDTuomilehto J, Lindstrom J, Eriksson JG, Valle TT, Hamalainen H, Ilanne-Parikka P, Keinanen-Kiukaanniemi S, Laakso M, Louheranta A, Rastas M, Salminen V, Uusitupa M; Finnish Diabetes Prevention Study Group. Prevention of type 2 diabetes mellitus by changes in lifestyle among subjects with impaired glucose tolerance. N Engl J Med. 2001 May 3;344(18):1343-50. doi: 10.1056/NEJM200105033441801.
PMID: 11333990BACKGROUNDPan XR, Li GW, Hu YH, Wang JX, Yang WY, An ZX, Hu ZX, Lin J, Xiao JZ, Cao HB, Liu PA, Jiang XG, Jiang YY, Wang JP, Zheng H, Zhang H, Bennett PH, Howard BV. Effects of diet and exercise in preventing NIDDM in people with impaired glucose tolerance. The Da Qing IGT and Diabetes Study. Diabetes Care. 1997 Apr;20(4):537-44. doi: 10.2337/diacare.20.4.537.
PMID: 9096977BACKGROUNDLi G, Zhang P, Wang J, Gregg EW, Yang W, Gong Q, Li H, Li H, Jiang Y, An Y, Shuai Y, Zhang B, Zhang J, Thompson TJ, Gerzoff RB, Roglic G, Hu Y, Bennett PH. The long-term effect of lifestyle interventions to prevent diabetes in the China Da Qing Diabetes Prevention Study: a 20-year follow-up study. Lancet. 2008 May 24;371(9626):1783-9. doi: 10.1016/S0140-6736(08)60766-7.
PMID: 18502303BACKGROUNDLindstrom J, Ilanne-Parikka P, Peltonen M, Aunola S, Eriksson JG, Hemio K, Hamalainen H, Harkonen P, Keinanen-Kiukaanniemi S, Laakso M, Louheranta A, Mannelin M, Paturi M, Sundvall J, Valle TT, Uusitupa M, Tuomilehto J; Finnish Diabetes Prevention Study Group. Sustained reduction in the incidence of type 2 diabetes by lifestyle intervention: follow-up of the Finnish Diabetes Prevention Study. Lancet. 2006 Nov 11;368(9548):1673-9. doi: 10.1016/S0140-6736(06)69701-8.
PMID: 17098085BACKGROUNDLook AHEAD Research Group; Wing RR, Bolin P, Brancati FL, Bray GA, Clark JM, Coday M, Crow RS, Curtis JM, Egan CM, Espeland MA, Evans M, Foreyt JP, Ghazarian S, Gregg EW, Harrison B, Hazuda HP, Hill JO, Horton ES, Hubbard VS, Jakicic JM, Jeffery RW, Johnson KC, Kahn SE, Kitabchi AE, Knowler WC, Lewis CE, Maschak-Carey BJ, Montez MG, Murillo A, Nathan DM, Patricio J, Peters A, Pi-Sunyer X, Pownall H, Reboussin D, Regensteiner JG, Rickman AD, Ryan DH, Safford M, Wadden TA, Wagenknecht LE, West DS, Williamson DF, Yanovski SZ. Cardiovascular effects of intensive lifestyle intervention in type 2 diabetes. N Engl J Med. 2013 Jul 11;369(2):145-54. doi: 10.1056/NEJMoa1212914. Epub 2013 Jun 24.
PMID: 23796131BACKGROUNDLook AHEAD Research Group; Wing RR. Long-term effects of a lifestyle intervention on weight and cardiovascular risk factors in individuals with type 2 diabetes mellitus: four-year results of the Look AHEAD trial. Arch Intern Med. 2010 Sep 27;170(17):1566-75. doi: 10.1001/archinternmed.2010.334.
PMID: 20876408BACKGROUNDWing RR, Lang W, Wadden TA, Safford M, Knowler WC, Bertoni AG, Hill JO, Brancati FL, Peters A, Wagenknecht L; Look AHEAD Research Group. Benefits of modest weight loss in improving cardiovascular risk factors in overweight and obese individuals with type 2 diabetes. Diabetes Care. 2011 Jul;34(7):1481-6. doi: 10.2337/dc10-2415. Epub 2011 May 18.
PMID: 21593294BACKGROUNDLook AHEAD Research Group; Wadden TA, West DS, Delahanty L, Jakicic J, Rejeski J, Williamson D, Berkowitz RI, Kelley DE, Tomchee C, Hill JO, Kumanyika S. The Look AHEAD study: a description of the lifestyle intervention and the evidence supporting it. Obesity (Silver Spring). 2006 May;14(5):737-52. doi: 10.1038/oby.2006.84.
PMID: 16855180BACKGROUNDLook AHEAD Research Group; Pi-Sunyer X, Blackburn G, Brancati FL, Bray GA, Bright R, Clark JM, Curtis JM, Espeland MA, Foreyt JP, Graves K, Haffner SM, Harrison B, Hill JO, Horton ES, Jakicic J, Jeffery RW, Johnson KC, Kahn S, Kelley DE, Kitabchi AE, Knowler WC, Lewis CE, Maschak-Carey BJ, Montgomery B, Nathan DM, Patricio J, Peters A, Redmon JB, Reeves RS, Ryan DH, Safford M, Van Dorsten B, Wadden TA, Wagenknecht L, Wesche-Thobaben J, Wing RR, Yanovski SZ. Reduction in weight and cardiovascular disease risk factors in individuals with type 2 diabetes: one-year results of the look AHEAD trial. Diabetes Care. 2007 Jun;30(6):1374-83. doi: 10.2337/dc07-0048. Epub 2007 Mar 15.
PMID: 17363746BACKGROUNDGregg EW, Chen H, Wagenknecht LE, Clark JM, Delahanty LM, Bantle J, Pownall HJ, Johnson KC, Safford MM, Kitabchi AE, Pi-Sunyer FX, Wing RR, Bertoni AG; Look AHEAD Research Group. Association of an intensive lifestyle intervention with remission of type 2 diabetes. JAMA. 2012 Dec 19;308(23):2489-96. doi: 10.1001/jama.2012.67929.
PMID: 23288372BACKGROUNDCamerer C. Challenges for Behavioral Economics - Cumulating and Distilling What We Know. In A. Samson (Ed.), The Behavioral Economics Guide 2020 (with an Introduction by Colin Camerer)(VI - XV). Retrieved from https://www.behavioraleconomics.com.
BACKGROUNDSamson, A. (Ed.)(2021). The Behavioral Economics Guide 2021 (with an Introduction by John List). https://www.behavioraleconomics.com/be-guide/.
BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, CARE PROVIDER
- Purpose
- SCREENING
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 1, 2023
First Posted
March 6, 2023
Study Start
August 4, 2022
Primary Completion
March 3, 2023
Study Completion
May 15, 2023
Last Updated
March 31, 2023
Record last verified: 2023-03