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Achieving blood preSsure goals sTudy in uncontrolled hypeRtensive pAtients treated with a fixed-dose combination of
I G Okpechi1, H S Schoeman, B Longo-Mbenza
1Division of Nephrology and Hypertension, Groote Schuur Hospital, University of Cape Town, South Africa. Ikechi.Okpechi@uct.ac.za
Insights
The fixed-dose combination of ramipril/hydrochlorothiazide (HCTZ) effectively lowers blood pressure in Black Africans. This treatment is well-tolerated and safe for managing hypertension.
Area of Science:
- Cardiology
- Pharmacology
- Public Health
Background:
- Hypertension is a leading global cause of death, necessitating improved management strategies.
- Observational studies are crucial for understanding real-world hypertension treatment.
- The ASTRAL study investigated a fixed-dose combination of ramipril/hydrochlorothiazide (HCTZ).
Purpose of the Study:
- To evaluate the efficacy of ramipril/HCTZ in achieving blood pressure goals.
- To assess blood pressure control in hypertensive patients in sub-Saharan Africa.
- To determine the safety and tolerability of the ramipril/HCTZ combination.
Main Methods:
- An open-label, multi-centre observational study in five sub-Saharan African countries.
- Included 449 adult patients with uncontrolled hypertension on monotherapy.
- Treatment duration was eight weeks with three study visits.
Main Results:
- Significant reductions in systolic and diastolic blood pressure were observed (-31.7/-17.9 mmHg at 8 weeks, p < 0.001).
- 60.2% of non-diabetic patients and 26.5% of diabetic patients achieved blood pressure goals.
- The treatment demonstrated a good safety profile with minimal adverse events.
Conclusions:
- Ramipril/HCTZ fixed-dose combination is effective for blood pressure control in Black Africans.
- The treatment is well-tolerated and possesses a favorable safety profile.
- This combination offers a viable option for managing hypertension in this population.
Background:
Hypertension is a common cardiovascular disease, affecting adults worldwide and it accounts for up to 30% of all deaths. The need for better control of arterial hypertension justifies observational studies designed to better understand the real-life management of hypertensive patients. The ASTRAL study was primarily designed to evaluate the percentage of hypertensive patients achieving blood pressure goals after eight weeks of treatment with a fixeddose combination of ramipril/hydrochlorothiazide (HCTZ).
Methods:
The study was a multi-centre, non-comparative, Open-label, observational study conducted in 36 centres in five sub-Saharan African countries, namely Cameroon, Congo Brazzaville, Democratic Republic of Congo (DRC), Madagascar and Nigeria. Four hundred and forty-nine men and women 18 years of age or older with hypertension not controlled by an ACE inhibitor, a diuretic or any other monotherapy or anti-hypertensive combination not containing a diuretic in a fixed dose were considered eligible for inclusion in this eight-week study. The study consisted of three visits, visit one (V1) at baseline, visit two (V2) after four weeks and visit three (V3) after eight weeks.
Results:
The mean age of the patients was 54.7 ± 11.7 years (20-90 years) and most were categorised by the WHO criteria as either overweight or obese (71.6%). After four and eight weeks of treatment with the study drug, systolic and diastolic blood pressures significantly changed from baseline: -24.7/-14.2 mmHg (p < 0.001) and -31.7/-17.9 mmHg (p < 0.001), respectively. There were 60.2% of the non-diabetics on prior monotherapy who, at eight weeks, fulfilled the primary blood pressure goal for SBP and DBP, versus 26.5% of the diabetic patients, also on monotherapy. Few adverse events were reported, with facial oedema and dry cough recurring twice in two patients.
Conclusion:
Fixed-dose combination of ramipril/HCTZ is therefore effective, tolerable and has a good safety profile for blood pressure control in black Africans.
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