Abstract
We investigated whether diabetes mellitus (DM) affects the efficacy of a low-dose triple combination pill and usual care among people with mild-moderate hypertension. TRIUMPH (TRIple pill vs Usual care Management for Patients with mild-to-moderate Hypertension) was a randomised controlled open-label trial of patients requiring initiation or escalation of antihypertensive therapy. Patients were randomised to a once-daily low-dose triple combination polypill (telmisartan-20mg/amlodipine-2.5 mg/chlorthalidone-12.5 mg) or usual care. This analysis compared BP reduction in people with and without DM, both in the intervention and control groups over 24-week follow-up. Predicted efficacy of prescribed therapy was calculated (estimation methods of Law et al.). The trial randomised 700 patients (56 ± 11 yrs, 31% DM). There was no difference in the number of drugs prescribed or predicted efficacy of therapy between people with DM and without DM. However, the observed BP reduction from baseline to week 24 was lower in those with DM compared to non-diabetics in both the triple pill (25/11 vs 31/15 mmHg, p ≤ 0.01) and usual care (17/7 vs 22/11 mmHg, p ≤ 0.01) groups, and these differences remained after multivariable adjustment. DM was a negative predictor of change in BP (β-coefficient −0.08, p = 0.02). In conclusion, patients with DM experienced reduced efficacy of BP lowering therapies as compared to patients without DM, irrespective of the type of BP lowering therapy received.
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Acknowledgements
The data and safety monitoring committee chair was Neil Poulter, FRCP (Imperial College, London, England). The other members of the committee were Chris Reid, PhD (Curtin University, Perth, Australia), and Nikhil Tandon, FRCP (All India Institute of Medical Sciences, New Delhi). The data and safety monitoring committee was not compensated for its work. Jayanthi Mysore and Sandrine Stepien provided statistical support and were compensated as part of their salaries (The George Institute for Global Health). Site management was provided by RemediumOne, which coordinated project execution and data collection. George Clinical (Bangalore, India) provided project management, monitoring, and data management services.
The TRIUMPH Study Group
Keshinie Samarasekara7, Chiranthi Kongala Liyanage7, Verni Sopan7, Wasantha Kumara7, Hansika Pathirana7, Lumbini Perera7, Manisha Somasiri7, Aruna Wijesinghe7, Jayamini Jayantha7, Sonali Liyanagamage7, Muditha de Silva7, Chandika Jayawardena7, Dilini Karunarathna7, Mitrakrishnan Rayno Navinan7, Zumra Shukri7, Charitha Herath7, Nadeeja Seneviratne7, Amila Isurangana7, Zulaiha Liyakath7, Thamal Dasitha7, Gerald Rajakulenthiran7, Aaisha Azam7, Chandika Jayawardena7, Manori Jayawardena7, Vinodhan Sunderalingam7, Milinda Withana7, Anushiya Annaraja7, Keshini Soza7, Dulani Dasanayake7, Keshini Soza7, Dhanushka de Silva7, Shakoor Niyasdeen7, Uthpala Chandradeva8, Safiya Fathima8, Aruna Jayawardana8, Ranasinghe Chathurika9, Manik de Mel9, Tharini Mendis9, Saumya Withanage9, Kandula Pieris9, Manik de Mel9, Gayathri Fernando9, Chamila Mettanda9, Saumya Withanage9, Kandula Pieris9, Eshani de Silva10, Imali Wijerathna10, Jeevaraj Thanushanthan11, Devaki Dharmawardena11, Shehan Gnanapragasam11, Shalomi Weerawardena11, Matheesha Suduwelikandage11, Ingrid de Silva11, Sachini Wathsala11, Ruchiranga Ekanayaka11, Anuradha Dahanayaka11, Vindhya Fernando11, Lakmal Jayaweera11, Namal Wijesinghe11, Murali Dhakshinamurthy12, Ullas Arabhavi12, Harish Sankarankutty12, Mohammed Muddaseer12, Sarath Gudivada12, Aditi Moitra12, Ayesha Tazeen12, Karuna Acharya12, Prakash Velappan12, Ambika Yoganathan12, Vipin Jose12
Funding
The study was funded by grants from the Australian National Health and Medical Research Council (NHMRC) Global Alliance for Chronic Disease programme and National Health and Medical Research Council programme grant [grants APP1041052, APP1052555]. The funding sponsor had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
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Concept and design: SRG, AR. Acquisition, analysis, or interpretation of data: SRG, RW, AS, HAdS, VS, HRKG, PKM, AES, AP, AR. Drafting of the manuscript: SRG, RW, AS, AES, AP, AR. Critical revision of the manuscript for important intellectual content: SRG, RW, AS, HAdS, VS, HRKG, PKM, AES, AP, AR. Statistical analysis: SRG. Obtained funding: RW, HRKG, PKM, AR, AP. Administrative, technical, or material support: RW, AS, HAdS, VS, HRKG, PKM.
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RKG is a minority shareholder in three Indian multinational pharmaceutical companies (Ajanta Pharma, Divis Laboratories, and NATCO Pharma). RW, AR reported receiving a salary from George Health Enterprises, which is the social enterprise arm of the George Institute for Global Health. The George Institute for Global Health is a majority shareholder of George Health Enterprises, which has received investment funds to develop fixed-dose combination products containing aspirin, statin, and blood pressure lowering drugs and has submitted a patent for the treatment of hypertension. AR is listed as an inventor on this patent; however, he does not have a financial interest in it. PKM is supported by MRC grant (MR/S023224/1) - Adolescents’ Resilience and Treatment nEeds for Mental health in Indian Slums (ARTEMIS), NHMRC/GACD grant (APP1143911) - Systematic Medical Appraisal, Referral and Treatment for Common Mental Disorders in India - SMART Mental Health.
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Gnanenthiran, S.R., Webster, R., Silva, A.d. et al. Reduced efficacy of blood pressure lowering drugs in the presence of diabetes mellitus—results from the TRIUMPH randomised controlled trial. Hypertens Res 46, 128–135 (2023). https://doi.org/10.1038/s41440-022-01051-7
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DOI: https://doi.org/10.1038/s41440-022-01051-7
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