HypertensionRandomised controlled trial

Efficacy and safety of a novel low-dose triple single-pill combination of telmisartan, amlodipine and indapamide, compared with dual combinations for treatment of hypertension: a randomised, double-blind, active-controlled, international clinical trial

LancetPublished

  • Randomised controlled trial
  • double-blind
  • active-controlled
  • international
  • 4-week active run-in
  • 2:1:1:1 allocation
  • Conducted between July 9, 2021 and Sept 1, 2023

Authors' conclusion

A novel low-dose SPC product of telmisartan, amlodipine, and indapamide provided clinically meaningful improvements in blood pressure reduction compared with dual combinations and was well tolerated.

Study context

Population
Adults with hypertension on 0–3 antihypertensive drugs, screening systolic blood pressure (SBP) 140–179 mm Hg (no drugs) to 110–150 mm Hg (three drugs); Australia, Czech Republic, New Zealand, Poland, Sri Lanka, UK, USA
Participants
1,385 adults
Comparison
Low-dose triple SPC GMRx2 vs dual combinations of its components
  • GMRx2n = 551
  • Telmisartan-indapamiden = 276reference
  • Telmisartan-amlodipinen = 282reference
  • Amlodipine-indapamiden = 276reference
Primary endpoint
Mean change in home SBP from baseline
Follow-up
Week 12

Primary result

As reported in the abstract

Home SBP

GMRx2

126

mean · mm Hg

Difference (95% CI)P value
GMRx2 vs Telmisartan-indapamide
−2.5(−3.7 to −1.3)
P < 0.0001
GMRx2 vs Telmisartan-amlodipine
−5.4(−6.8 to −4.1)
P < 0.0001
GMRx2 vs Amlodipine-indapamide
−4.4(−5.8 to −3.1)
P < 0.0001

Secondary outcomes

OutcomeGMRx2Telmisartan-indapamideTelmisartan-amlodipineAmlodipine-indapamide
Clinic BP control rate <140/90 mm Hg · week 1274%Not reported in the abstractNot reported in the abstractNot reported in the abstract
Clinic BP control rate <140/90 mm Hg — Superior with GMRx2 to each dual combination (range for dual combinations)
53-61%

Clinic BP difference, GMRx2 vs each dual combination · week 12

Differences in clinic BP for the same comparisons (vs telmisartan-indapamide, telmisartan-amlodipine, amlodipine-indapamide)
4.3/3.5 mm Hg, 5.6/3.7 mm Hg, and 6.3/4.5 mm Hg
  • all p<0.001

Safety

Withdrawal of treatment due to AE (primary safety outcome) · baseline to week 12

Withdrawal of treatment due to AE (primary safety outcome) · baseline to week 12

None of the differences statistically significant

Original publication

Efficacy and safety of a novel low-dose triple single-pill combination of telmisartan, amlodipine and indapamide, compared with dual combinations for treatment of hypertension: a randomised, double-blind, active-controlled, international clinical trial. Lancet. Published 19 October 2024. doi:10.1016/s0140-6736(24)01744-6

Summarised from the published abstract; every number is checked against it