Evidence map›Paper›PMID 19366271›Full record

Trial reportClinical drug investigation2009

Combination therapy with candesartan cilexetil 32 mg and hydrochlorothiazide 25 mg provides the full additive antihypertensive effect of the components: A randomized, double-blind, parallel-group study in primary care.

Istvan Edes, Multicentre Study Group

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical drug investigation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Observational
  6. Which thiazide to choose as add-on therapy for hypertension?Integrated blood pressure control · 2014
    Review
  7. An overview of candesartan in clinical practice.Expert review of cardiovascular therapy · 2011
    Review
  8. Article
  9. Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Istvan EdesDEOEC Institute of Cardiology, Debrecen, Hungary. edes@dote.hu
Multicentre Study Group
University of Debrecen · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveFixed-combination tablets of candesartan (orally administered as the pro-drug candesartan cilexetil and hereafter referred to as candesartan) and hydrochlorothiazide (HCTZ) 8/12.5 mg and 16/12.5 mg are effective and well tolerated. However, some patients require higher doses to attain target blood pressure, and combination tablets containing candesartan and HCTZ at the upper end of their respective dose ranges are now being developed. This study aimed to assess the antihypertensive effect and tolerability of the combination of candesartan 32 mg and HCTZ 25 mg versus candesartan 32 mg monotherapy, HCTZ 25 mg monotherapy, and placebo.

methodsThis was a randomized, double-blind, parallel-group study, with 8 weeks of follow-up, carried out in primary-care outpatients. 1524 men or women (age 20-80 years) with mild to moderate primary hypertension and sitting diastolic blood pressure (DBP) 90-114 mmHg after 4 weeks' single-blind placebo treatment were included in the study. Candesartan/HCTZ 32/25 mg combination therapy, candesartan 32 mg monotherapy, HCTZ 25 mg monotherapy, and placebo, allocated in a 5 : 5 : 5 : 1 ratio, were administered once daily. The main outcome measure was adjusted (analysis of covariance) mean reductions in systolic blood pressure (SBP) and DBP.

resultsMean reductions in SBP and DBP were significantly greater with candesartan/HCTZ 32/25 mg (21/14 mmHg) than with candesartan 32 mg (13/9 mmHg), HCTZ 25 mg (12/8 mmHg) or placebo (4/3 mmHg) [p < 0.001 for all comparisons]. The proportion of patients with controlled blood pressure (SBP <140 mmHg and DBP <90 mmHg) at the end of the study was also significantly greater in the candesartan/HCTZ 32/25 mg group (63%) than in the other treatment groups (p < 0.001 for all comparisons). All study treatments were generally well tolerated.

conclusionThe antihypertensive effect of candesartan/HCTZ 32/25 mg represents fully additive contributions from each of its components, and is generally well tolerated in patients with mild to moderate primary hypertension. This combination adds to the treatment options for improving blood pressure control in patients with hypertension.

Indexed as

AdultAgedAged, 80 and overAntihypertensive AgentsBenzimidazolesBiphenyl CompoundsBlood PressureDouble-Blind MethodDrug CombinationsFemaleFollow-Up StudiesHumansHydrochlorothiazideHypertensionMaleMiddle AgedAntihypertensive AgentsBenzimidazolesBiphenyl Compoundscandesartan cilexetilDrug CombinationsHydrochlorothiazideTetrazoles

Identifiers

PMID19366271
OpenAlexW177762941

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.