Antihypertensive treatment and risk of cancer: an individual participant data meta-analysis.
Pubmed ID: 33794209
Pubmed Central ID: PMC8024901
Journal: The Lancet. Oncology
Publication Date: 04/01/2021
Affiliation: Deep Medicine, Oxford Martin School, University of Oxford, Oxford, UK; Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK; National Institute for Health Research Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK. Electronic address: email@example.com.
MeSH Terms: Humans, Risk Factors, Hypertension, Randomized Controlled Trials as Topic, Blood Pressure, Angiotensin-Converting Enzyme Inhibitors, Neoplasms, Antihypertensive Agents, Calcium Channel Blockers, Angiotensin Receptor Antagonists, Network Meta-Analysis
Grants: PG/18/65/33872, FS/19/36/34346
Authors: Lubsen J, Pitt B, Patel A, Rodgers A, Woodward M, Woodward M, Davis BR, Davis BR, Neal B, Collins R, Imai Y, MacMahon S, Ohkubo T, Sundström J, Sundström J, Lindholm LH, Fagard R, Staessen JA, Yusuf S, Wang J, Chalmers J, Chalmers J, Rahimi K, Poulter NR, Asselbergs FW, Cushman WC, Whelton P, Cutler J, Lewis J, Dwyer J, Kostis J, Anderson C, Holman RR, Zanchetti A, Beckett N, Sever P, Palmer C, Ogihara T, van Gilst WH, Pepine CJ, Pepine CJ, Pfeffer M, Gupta AK, Berge E, Canoy D, Nazarzadeh M, Salimi-Khorshidi G, Agodoa L, Algra A, Black H, Brown M, Bulpitt CJ, Byington B, Devereaux RB, Estacio R, Fox K, Fukui T, Ishii M, Julius S, Kanno Y, Kjeldsen SE, Kuramoto K, Lanke J, Lewis E, Lievre M, Lueders S, Matsuzaki M, Mehlum MH, Nissen S, Ogawa H, Rakugi H, Remuzzi G, Ruggenenti P, Saruta T, Schrader J, Schrier R, Sleight P, Suzuki H, Thijs L, Ueshima K, Umemoto S, Verdecchia P, Wachtell K, Wing L, Yui Y, Copland E, Bidel Z, Ramakrishnan R, Teo KK, Kjeldsen S, Adler A, Brouwers FPJ, Mancia G, Reboldi G, Reid C, Zhang ZY, Baigent C, Brenner BM, de Zeeuw D, Malacco E, Perkovic V, Rothwell P, Turnbull F, Viberti G
Cite As: Copland E, Canoy D, Nazarzadeh M, Bidel Z, Ramakrishnan R, Woodward M, Chalmers J, Teo KK, Pepine CJ, Davis BR, Kjeldsen S, Sundström J, Rahimi K, Blood Pressure Lowering Treatment Trialists' Collaboration. Antihypertensive treatment and risk of cancer: an individual participant data meta-analysis. Lancet Oncol 2021 Apr;22(4):558-570.
- Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT)
- Systolic Blood Pressure Intervention Trial Primary Outcome Paper (SPRINT-POP) Data
BACKGROUND: Some studies have suggested a link between antihypertensive medication and cancer, but the evidence is so far inconclusive. Thus, we aimed to investigate this association in a large individual patient data meta-analysis of randomised clinical trials. METHODS: We searched PubMed, MEDLINE, The Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov from Jan 1, 1966, to Sept 1, 2019, to identify potentially eligible randomised controlled trials. Eligible studies were randomised controlled trials comparing one blood pressure lowering drug class with a placebo, inactive control, or other blood pressure lowering drug. We also required that trials had at least 1000 participant years of follow-up in each treatment group. Trials without cancer event information were excluded. We requested individual participant data from the authors of eligible trials. We pooled individual participant-level data from eligible trials and assessed the effects of angiotensin-converting enzyme inhibitors (ACEIs), angiotensin II receptor blockers (ARBs), β blockers, calcium channel blockers, and thiazide diuretics on cancer risk in one-stage individual participant data and network meta-analyses. Cause-specific fixed-effects Cox regression models, stratified by trial, were used to calculate hazard ratios (HRs). The primary outcome was any cancer event, defined as the first occurrence of any cancer diagnosed after randomisation. This study is registered with PROSPERO (CRD42018099283). FINDINGS: 33 trials met the inclusion criteria, and included 260 447 participants with 15 012 cancer events. Median follow-up of included participants was 4·2 years (IQR 3·0-5·0). In the individual participant data meta-analysis comparing each drug class with all other comparators, no associations were identified between any antihypertensive drug class and risk of any cancer (HR 0·99 [95% CI 0·95-1·04] for ACEIs; 0·96 [0·92-1·01] for ARBs; 0·98 [0·89-1·07] for β blockers; 1·01 [0·95-1·07] for thiazides), with the exception of calcium channel blockers (1·06 [1·01-1·11]). In the network meta-analysis comparing drug classes against placebo, we found no excess cancer risk with any drug class (HR 1·00 [95% CI 0·93-1·09] for ACEIs; 0·99 [0·92-1·06] for ARBs; 0·99 [0·89-1·11] for β blockers; 1·04 [0·96-1·13] for calcium channel blockers; 1·00 [0·90-1·10] for thiazides). INTERPRETATION: We found no consistent evidence that antihypertensive medication use had any effect on cancer risk. Although such findings are reassuring, evidence for some comparisons was insufficient to entirely rule out excess risk, in particular for calcium channel blockers. FUNDING: British Heart Foundation, National Institute for Health Research, Oxford Martin School.