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June 8, 2005BMC Cardiovascular DisordersOpen Access

Determinants of persistence in hypertensive patients treated with irbesartan: results of a postmarketing survey

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Key result

Irbesartan 150 mg daily significantly reduced systolic blood pressure by an average of 20.2 mmHg and was associated with a high persistence rate of over 80% at 4 months.

Why the study?

Does irbesartan improve blood pressure and treatment persistence in hypertensive patients?

Population

4,769 previously untreated or uncontrolled pre-treated hypertensive patients in Switzerland

Design

Cohort

Follow-up

up to 6 months (average slightly exceeding 4 months)

Authors

MBMichel BurnierPreventive CardiologyBHBernhard HessHirslanden Klinik Im ParkPGP GremingerUniversity of Zurich

Discussion

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Implication

May inform real-world persistence strategies in hypertension; leaves open whether factors predict outcomes in broader populations.

Study Design

Type

Observational (n=4,769)

Blinding

Open-label

Multicenter

Yes

Structured PICO

Does irbesartan improve blood pressure and treatment persistence in hypertensive patients?

P
Population
4,769 hypertensive patients (newly diagnosed or requiring medication change) treated with irbesartan in Swiss general practices and followed for an average of 4 months.
I
Intervention
Irbesartan 150 mg daily
O
Outcome
Tolerance, blood pressure lowering effect, and factors affecting persistencesurrogate

Main Result

Mean Difference: -20.2 (95% CI -20.7–-19.6)

p-value: p=<0.001

Irbesartan is effective and well-tolerated in a real-world hypertensive population, with early blood pressure control and good tolerability predicting treatment persistence.

Limitations

  • Lack of a control group and non-standardized treatment schedule
  • Potential selection bias due to non-randomized inclusion of patients
  • Digit preference observed in reported blood pressure values (rounding to 0 or 5)
  • Low response rate for compliance questionnaires, leading to probable bias towards highly compliant patients

Cite This Study

Burnier et al. (2005) conducted an observational in Hypertension (n=4,769). Irbesartan was evaluated on Reduction in systolic blood pressure from baseline (MD -20.2 mmHg, 95% CI -20.7 to -19.6, p=<0.001). Irbesartan 150 mg daily significantly reduced systolic blood pressure by an average of 20.2 mmHg and was associated with a high persistence rate of over 80% at 4 months.

synapsesocial.com/papers/6a61b334f5a6cede3a89a01dhttps://doi.org/10.1186/1471-2261-5-13

Topics

Hypertension management
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Reasons for not intensifying antihypertensive treatment (RIAT)2004 · 69 citations
  2. 2The Effect of Irbesartan on the Development of Diabetic Nephropathy in Patients with Type 2 Diabetes2001 · 2,905 citations
  3. 3Discontinuation of and changes in treatment after start of new courses of antihypertensive drugs: a study of a United Kingdom population1995 · 259 citations
  4. 4Renoprotective Effect of the Angiotensin-Receptor Antagonist Irbesartan in Patients with Nephropathy Due to Type 2 Diabetes2001 · 6,044 citations
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