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Published in: BMC Public Health 1/2010

Open Access 01-12-2010 | Study protocol

Rationale and design of the Kanyini guidelines adherence with the polypill (Kanyini-GAP) study: a randomised controlled trial of a polypill-based strategy amongst Indigenous and non Indigenous people at high cardiovascular risk

Authors: Hueiming Liu, Anushka Patel, Alex Brown, Sandra Eades, Noel Hayman, Stephen Jan, Ian Ring, Greg Stewart, Andrew Tonkin, Tarun Weeramanthri, Vicki Wade, Anthony Rodgers, Tim Usherwood, Bruce Neal, David Peiris, Hugh Burke, Christopher Reid, Alan Cass, the Kanyini Vascular Collaboration and Kanyini GAP Study Team

Published in: BMC Public Health | Issue 1/2010

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Abstract

Background

The Kanyini Guidelines Adherence with the Polypill (Kanyini-GAP) Study aims to examine whether a polypill-based strategy (using a single capsule containing aspirin, a statin and two blood pressure-lowering agents) amongst Indigenous and non-Indigenous people at high risk of experiencing a cardiovascular event will improve adherence to guideline-indicated therapies, and lower blood pressure and cholesterol levels.

Methods/Design

The study is an open, randomised, controlled, multi-centre trial involving 1000 participants at high risk of cardiovascular events recruited from mainstream general practices and Aboriginal Medical Services, followed for an average of 18 months. The participants will be randomised to one of two versions of the polypill, the version chosen by the treating health professional according to clinical features of the patient, or to usual care. The primary study outcomes will be changes, from baseline measures, in serum cholesterol and systolic blood pressure and self-reported current use of aspirin, a statin and at least two blood pressure lowering agents. Secondary study outcomes include cardiovascular events, renal outcomes, self-reported barriers to indicated therapy, prescription of indicated therapy, occurrence of serious adverse events and changes in quality-of-life. The trial will be supplemented by formal economic and process evaluations.

Discussion

The Kanyini-GAP trial will provide new evidence as to whether or not a polypill-based strategy improves adherence to effective cardiovascular medications amongst individuals in whom these treatments are indicated.

Trial Registration

This trial is registered with the Australian New Zealand Clinical Trial Registry ACTRN126080005833347.
Appendix
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Literature
1.
go back to reference Vos T, Barker B, Stanley L, Lopez A: The burden of disease and injury in Aboriginal and Torres Strait Islander peoples 2003. 2007, Brisbane: The University of Queensland Vos T, Barker B, Stanley L, Lopez A: The burden of disease and injury in Aboriginal and Torres Strait Islander peoples 2003. 2007, Brisbane: The University of Queensland
2.
go back to reference National Heart Foundation of Australia, Cardiac Society of Australia and New Zealand: Reducing risk in heart disease 2004. 2005, National Heart Foundation of Australia National Heart Foundation of Australia, Cardiac Society of Australia and New Zealand: Reducing risk in heart disease 2004. 2005, National Heart Foundation of Australia
3.
go back to reference National Heart Foundation of Australia: Hypertension management guide for doctors. 2004, National Heart Foundation National Heart Foundation of Australia: Hypertension management guide for doctors. 2004, National Heart Foundation
4.
go back to reference National Stroke Foundation: Clinical guidelines for the management of acute stroke. 2002, National Stroke Foundation National Stroke Foundation: Clinical guidelines for the management of acute stroke. 2002, National Stroke Foundation
5.
go back to reference New Zealand Guidelines Group: New Zealand Cardiovascular Guidelines Handbook: A summary resource for primary care practitioners. 2009, Wellington: New Zealand Guidelines Group, 2 New Zealand Guidelines Group: New Zealand Cardiovascular Guidelines Handbook: A summary resource for primary care practitioners. 2009, Wellington: New Zealand Guidelines Group, 2
6.
go back to reference Heeley EL, Peiris DP, Patel AA, Cass A, Weekes A, Morgan C, Anderson CS, Chalmers JP: Cardiovascular risk perception and evidence--practice gaps in Australian general practice (the AusHEART study). Med J Aust. 2010, 192 (5): 254-259.PubMed Heeley EL, Peiris DP, Patel AA, Cass A, Weekes A, Morgan C, Anderson CS, Chalmers JP: Cardiovascular risk perception and evidence--practice gaps in Australian general practice (the AusHEART study). Med J Aust. 2010, 192 (5): 254-259.PubMed
7.
go back to reference Peiris DP, Patel AA, Cass A, Howard MP, Tchan ML, Brady JP, De Vries J, Rickards BA, Yarnold DJ, Hayman NE, Brown ADH: Cardiovascular disease risk management for Aboriginal and Torres Strait Islander peoples in primary health care settings: findings from the Kanyini Audit. Med J Aust. 2009, 191 (6): 304-309.PubMed Peiris DP, Patel AA, Cass A, Howard MP, Tchan ML, Brady JP, De Vries J, Rickards BA, Yarnold DJ, Hayman NE, Brown ADH: Cardiovascular disease risk management for Aboriginal and Torres Strait Islander peoples in primary health care settings: findings from the Kanyini Audit. Med J Aust. 2009, 191 (6): 304-309.PubMed
8.
go back to reference Webster RJ, Heeley EL, Peiris DP, Bayram C, Cass A, Patel AA: Gaps in cardiovascular disease risk management in Australian general practice. Med J Aust. 2009, 191 (6): 324-329.PubMed Webster RJ, Heeley EL, Peiris DP, Bayram C, Cass A, Patel AA: Gaps in cardiovascular disease risk management in Australian general practice. Med J Aust. 2009, 191 (6): 324-329.PubMed
9.
go back to reference Brady AJ, Oliver MA, Pittard JB: Secondary prevention in 24, 431 patients with coronary heart disease: survey in primary care. BMJ. 2001, 322 (7300): 1463.-10.1136/bmj.322.7300.1463.CrossRefPubMedPubMedCentral Brady AJ, Oliver MA, Pittard JB: Secondary prevention in 24, 431 patients with coronary heart disease: survey in primary care. BMJ. 2001, 322 (7300): 1463.-10.1136/bmj.322.7300.1463.CrossRefPubMedPubMedCentral
10.
go back to reference Peiris D, Murray J, Scully D, Tilakawardene V, Hetaraka-Stevens L, Stewart T, Patel A: Cardiovascular risk management at a Maori-led Primary Health Organisation--findings from a cross-sectional audit. N Z Med J. 2008, 121 (1285): 35-46.PubMed Peiris D, Murray J, Scully D, Tilakawardene V, Hetaraka-Stevens L, Stewart T, Patel A: Cardiovascular risk management at a Maori-led Primary Health Organisation--findings from a cross-sectional audit. N Z Med J. 2008, 121 (1285): 35-46.PubMed
11.
go back to reference Rafter N, Wells S, Stewart A, Selak V, Whittaker R, Bramley D, Roseman P, Furness S, Jackson RT: Gaps in primary care documentation of cardiovascular risk factors. N Z Med J. 2008, 121 (1269): 24-33.PubMed Rafter N, Wells S, Stewart A, Selak V, Whittaker R, Bramley D, Roseman P, Furness S, Jackson RT: Gaps in primary care documentation of cardiovascular risk factors. N Z Med J. 2008, 121 (1269): 24-33.PubMed
12.
go back to reference Reid C, Nelson MR, Shiel L, Chew D, Connor G, DeLooze F: Australians at risk: management of cardiovascular risk factors in the REACH Registry. Heart Lung Circ. 2008, 17 (2): 114-118. 10.1016/j.hlc.2007.07.009.CrossRefPubMed Reid C, Nelson MR, Shiel L, Chew D, Connor G, DeLooze F: Australians at risk: management of cardiovascular risk factors in the REACH Registry. Heart Lung Circ. 2008, 17 (2): 114-118. 10.1016/j.hlc.2007.07.009.CrossRefPubMed
13.
go back to reference Steven ID, Wing L: Control and cardiovascular risk factors of hypertension. An assessment of a sample of patients. Aust Fam Physician. 1999, 28 (1): 45-48.PubMed Steven ID, Wing L: Control and cardiovascular risk factors of hypertension. An assessment of a sample of patients. Aust Fam Physician. 1999, 28 (1): 45-48.PubMed
14.
go back to reference Vale MJ, Jelinek MV, Best JD: How many patients with coronary heart disease are not achieving their risk-factor targets? Experience in Victoria 1996-1998 versus 1999-2000. Med J Aust. 2002, 176 (5): 211-215.PubMed Vale MJ, Jelinek MV, Best JD: How many patients with coronary heart disease are not achieving their risk-factor targets? Experience in Victoria 1996-1998 versus 1999-2000. Med J Aust. 2002, 176 (5): 211-215.PubMed
15.
go back to reference Grol R, Grimshaw J: From best evidence to best practice: effective implementation of change in patients' care. Lancet. 2003, 362 (9391): 1225-1230. 10.1016/S0140-6736(03)14546-1.CrossRefPubMed Grol R, Grimshaw J: From best evidence to best practice: effective implementation of change in patients' care. Lancet. 2003, 362 (9391): 1225-1230. 10.1016/S0140-6736(03)14546-1.CrossRefPubMed
16.
go back to reference Bailey JE, Lee MD, Somes GW, Graham RL: Risk factors for antihypertensive medication refill failure by patients under Medicaid managed care. Clin Ther. 1996, 18 (6): 1252-1262. 10.1016/S0149-2918(96)80080-4.CrossRefPubMed Bailey JE, Lee MD, Somes GW, Graham RL: Risk factors for antihypertensive medication refill failure by patients under Medicaid managed care. Clin Ther. 1996, 18 (6): 1252-1262. 10.1016/S0149-2918(96)80080-4.CrossRefPubMed
17.
go back to reference Barat I, Andreasen F, Damsgaard EM: Drug therapy in the elderly: what doctors believe and patients actually do. Br J Clin Pharmacol. 2001, 51 (6): 615-622. 10.1046/j.0306-5251.2001.01401.x.CrossRefPubMedPubMedCentral Barat I, Andreasen F, Damsgaard EM: Drug therapy in the elderly: what doctors believe and patients actually do. Br J Clin Pharmacol. 2001, 51 (6): 615-622. 10.1046/j.0306-5251.2001.01401.x.CrossRefPubMedPubMedCentral
19.
go back to reference Gupta AK, Arshad S, Poulter NR: Compliance, safety, and effectiveness of fixed-dose combinations of antihypertensive agents: a meta-analysis. Hypertension. 2010, 55 (2): 399-407. 10.1161/HYPERTENSIONAHA.109.139816.CrossRefPubMed Gupta AK, Arshad S, Poulter NR: Compliance, safety, and effectiveness of fixed-dose combinations of antihypertensive agents: a meta-analysis. Hypertension. 2010, 55 (2): 399-407. 10.1161/HYPERTENSIONAHA.109.139816.CrossRefPubMed
20.
go back to reference Houston Miller N, Hill M, Kottke T, Ockene IS: The Multilevel Compliance Challenge: Recommendations for a Call to Action. A Statement for Healthcare Professionals. Circulation. 1997, 95 (4): 1085-1090.CrossRef Houston Miller N, Hill M, Kottke T, Ockene IS: The Multilevel Compliance Challenge: Recommendations for a Call to Action. A Statement for Healthcare Professionals. Circulation. 1997, 95 (4): 1085-1090.CrossRef
21.
go back to reference Paes AH, Bakker A, Soe-Agnie CJ: Impact of dosage frequency on patient compliance. Diabetes Care. 1997, 20 (10): 1512-1517. 10.2337/diacare.20.10.1512.CrossRefPubMed Paes AH, Bakker A, Soe-Agnie CJ: Impact of dosage frequency on patient compliance. Diabetes Care. 1997, 20 (10): 1512-1517. 10.2337/diacare.20.10.1512.CrossRefPubMed
22.
go back to reference Rieckmann N, Gerin W, Kronish IM, Burg MM, Chaplin WF, Kong G, Lesperance F, Davidson KW: Course of depressive symptoms and medication adherence after acute coronary syndromes: an electronic medication monitoring study. J Am Coll Cardiol. 2006, 48 (11): 2218-2222. 10.1016/j.jacc.2006.07.063.CrossRefPubMed Rieckmann N, Gerin W, Kronish IM, Burg MM, Chaplin WF, Kong G, Lesperance F, Davidson KW: Course of depressive symptoms and medication adherence after acute coronary syndromes: an electronic medication monitoring study. J Am Coll Cardiol. 2006, 48 (11): 2218-2222. 10.1016/j.jacc.2006.07.063.CrossRefPubMed
23.
go back to reference Shaw E, Anderson JG, Maloney M, Jay SJ, Fagan D: Factors associated with noncompliance of patients taking antihypertensive medications. Hosp Pharm. 1995, 30 (3): 201-203. 206-207PubMed Shaw E, Anderson JG, Maloney M, Jay SJ, Fagan D: Factors associated with noncompliance of patients taking antihypertensive medications. Hosp Pharm. 1995, 30 (3): 201-203. 206-207PubMed
24.
go back to reference Australian Institute of Health and Welfare: Expenditures on health for Aboriginal and Torrres Strait Islander peoples, 2004-05. Volume Cat. No. HWE 40. 2008, Canberra: Australian Institute of Health and Welfare Australian Institute of Health and Welfare: Expenditures on health for Aboriginal and Torrres Strait Islander peoples, 2004-05. Volume Cat. No. HWE 40. 2008, Canberra: Australian Institute of Health and Welfare
26.
go back to reference World Health Organisation: Secondary prevention of non-communicable disease in low and middle income countries through community-based and health service interventions. World Health Organisation - Wellcome Trust Meeting Report 1-3 August 2001, Geneva. 2002, Geneva: World Health Organisation World Health Organisation: Secondary prevention of non-communicable disease in low and middle income countries through community-based and health service interventions. World Health Organisation - Wellcome Trust Meeting Report 1-3 August 2001, Geneva. 2002, Geneva: World Health Organisation
27.
go back to reference Yusuf S: Two decades of progress in preventing vascular disease. Lancet. 2002, 360 (9326): 2-3. 10.1016/S0140-6736(02)09358-3.CrossRefPubMed Yusuf S: Two decades of progress in preventing vascular disease. Lancet. 2002, 360 (9326): 2-3. 10.1016/S0140-6736(02)09358-3.CrossRefPubMed
28.
go back to reference Connor J, Rafter N, Rodgers A: Do fixed-dose combination pills or unit-of-use packaging improve adherence? A systematic review. Bull World Health Organ. 2004, 82 (12): 935-939.PubMed Connor J, Rafter N, Rodgers A: Do fixed-dose combination pills or unit-of-use packaging improve adherence? A systematic review. Bull World Health Organ. 2004, 82 (12): 935-939.PubMed
29.
go back to reference Anderson KM, Odell PM, Wilson PW, Kannel WB: Cardiovascular disease risk profiles. Am Heart J. 1991, 121 (1 Pt 2): 293-298. 10.1016/0002-8703(91)90861-B.CrossRefPubMed Anderson KM, Odell PM, Wilson PW, Kannel WB: Cardiovascular disease risk profiles. Am Heart J. 1991, 121 (1 Pt 2): 293-298. 10.1016/0002-8703(91)90861-B.CrossRefPubMed
30.
go back to reference Hansson L, Hedner T, Dahlof B: Prospective randomized open blinded end-point (PROBE) study. A novel design for intervention trials. Prospective Randomized Open Blinded End-Point. Blood Press. 1992, 1 (2): 113-119. 10.3109/08037059209077502.CrossRefPubMed Hansson L, Hedner T, Dahlof B: Prospective randomized open blinded end-point (PROBE) study. A novel design for intervention trials. Prospective Randomized Open Blinded End-Point. Blood Press. 1992, 1 (2): 113-119. 10.3109/08037059209077502.CrossRefPubMed
31.
go back to reference EuroQol Group: EuroQol--a new facility for the measurement of health-related quality of life. The EuroQol Group. Health Policy. 1990, 16 (3): 199-208. 10.1016/0168-8510(90)90421-9.CrossRef EuroQol Group: EuroQol--a new facility for the measurement of health-related quality of life. The EuroQol Group. Health Policy. 1990, 16 (3): 199-208. 10.1016/0168-8510(90)90421-9.CrossRef
32.
go back to reference Oakley A, Strange V, Bonell C, Allen E, Stephenson J: Process evaluation in randomised controlled trials of complex interventions. BMJ. 2006, 332 (7538): 413-416. 10.1136/bmj.332.7538.413.CrossRefPubMedPubMedCentral Oakley A, Strange V, Bonell C, Allen E, Stephenson J: Process evaluation in randomised controlled trials of complex interventions. BMJ. 2006, 332 (7538): 413-416. 10.1136/bmj.332.7538.413.CrossRefPubMedPubMedCentral
33.
go back to reference Campbell M, Fitzpatrick R, Haines A, Kinmonth AL, Sandercock P, Spiegelhalter D, Tyrer P: Framework for design and evaluation of complex interventions to improve health. BMJ. 2000, 321 (7262): 694-696. 10.1136/bmj.321.7262.694.CrossRefPubMedPubMedCentral Campbell M, Fitzpatrick R, Haines A, Kinmonth AL, Sandercock P, Spiegelhalter D, Tyrer P: Framework for design and evaluation of complex interventions to improve health. BMJ. 2000, 321 (7262): 694-696. 10.1136/bmj.321.7262.694.CrossRefPubMedPubMedCentral
34.
go back to reference Patton M: Qualitative research and evaluation methods. 2002, Thousand Oaks: Sage Patton M: Qualitative research and evaluation methods. 2002, Thousand Oaks: Sage
35.
go back to reference Pawson R, Tilley N: Realistic evaluation. 1997, London; Thousand Oaks, Calif.: Sage Pawson R, Tilley N: Realistic evaluation. 1997, London; Thousand Oaks, Calif.: Sage
36.
go back to reference Glaser BG, Strauss AL: The discovery of grounded theory: strategies for qualitative research. 1967, Chicago: Aldine Glaser BG, Strauss AL: The discovery of grounded theory: strategies for qualitative research. 1967, Chicago: Aldine
37.
go back to reference Atkinson VJ, Graham J, Pettit G, Lewis L: Broadening the focus of research into the health of Indigenous Australians. Med J Aust. 2002, 177 (6): 286-287.PubMed Atkinson VJ, Graham J, Pettit G, Lewis L: Broadening the focus of research into the health of Indigenous Australians. Med J Aust. 2002, 177 (6): 286-287.PubMed
38.
go back to reference Couzos S, Lea T, Murray R, Culbong M: 'We are not just participants--we are in charge': the NACCHO ear trial and the process for Aboriginal community-controlled health research. Ethn Health. 2005, 10 (2): 91-111. 10.1080/13557850500071038.CrossRefPubMed Couzos S, Lea T, Murray R, Culbong M: 'We are not just participants--we are in charge': the NACCHO ear trial and the process for Aboriginal community-controlled health research. Ethn Health. 2005, 10 (2): 91-111. 10.1080/13557850500071038.CrossRefPubMed
39.
go back to reference Humphery K: Dirty questions: Indigenous health and 'Western research'. Aust N Z J Public Health. 2001, 25 (3): 197-202. 10.1111/j.1467-842X.2001.tb00563.x.CrossRefPubMed Humphery K: Dirty questions: Indigenous health and 'Western research'. Aust N Z J Public Health. 2001, 25 (3): 197-202. 10.1111/j.1467-842X.2001.tb00563.x.CrossRefPubMed
40.
go back to reference Henderson R, Simmons DS, Bourke L, Muir J: Development of guidelines for non-indigenous people undertaking research among the indigenous population of north-east Victoria. Med J Aust. 2002, 176 (10): 482-485.PubMed Henderson R, Simmons DS, Bourke L, Muir J: Development of guidelines for non-indigenous people undertaking research among the indigenous population of north-east Victoria. Med J Aust. 2002, 176 (10): 482-485.PubMed
42.
go back to reference Sibthorpe BM, Bailie RS, Brady MA, Ball SA, Sumner-Dodd P, Hall WD: The demise of a planned randomised controlled trial in an urban Aboriginal medical service. Med J Aust. 2002, 176 (6): 273-276.PubMed Sibthorpe BM, Bailie RS, Brady MA, Ball SA, Sumner-Dodd P, Hall WD: The demise of a planned randomised controlled trial in an urban Aboriginal medical service. Med J Aust. 2002, 176 (6): 273-276.PubMed
Metadata
Title
Rationale and design of the Kanyini guidelines adherence with the polypill (Kanyini-GAP) study: a randomised controlled trial of a polypill-based strategy amongst Indigenous and non Indigenous people at high cardiovascular risk
Authors
Hueiming Liu
Anushka Patel
Alex Brown
Sandra Eades
Noel Hayman
Stephen Jan
Ian Ring
Greg Stewart
Andrew Tonkin
Tarun Weeramanthri
Vicki Wade
Anthony Rodgers
Tim Usherwood
Bruce Neal
David Peiris
Hugh Burke
Christopher Reid
Alan Cass
the Kanyini Vascular Collaboration and Kanyini GAP Study Team
Publication date
01-12-2010
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2010
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/1471-2458-10-458

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