Evidence map›Paper›PMID 28560779›Full record

Trial reportJournal of clinical hypertension (Greenwich, Conn.)2017

Efficacy and tolerability of initial high vs low doses of S-(-)-amlodipine in hypertension.

Qi Chen, Qi-Fang Huang, Yuan-Yuan Kang, Shao-Kun Xu, Chang-Yuan Liu, Yan Li, Ji-Guang Wang

Abstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of clinical hypertension (Greenwich, Conn.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Trial
  2. Trial
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  4. Trial
  5. Observational
  6. Article
  7. 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

7 authors.

Qi ChenShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Qi-Fang HuangShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Yuan-Yuan KangShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Shao-Kun XuShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Chang-Yuan LiuShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Yan LiShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Ji-Guang WangShanghai Key Laboratory of Hypertension, Department of Hypertension, Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.ORCID http://orcid.org/0000-0001-8511-1524

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In an 8-week randomized trial of patients with mild or moderate hypertension, the authors investigated the efficacy and tolerability of initial high (5.0 mg/d) vs low (2.5 mg/d) doses of S-(-)-amlodipine (equivalent to 5 and 10 mg of racemic amlodipine, respectively). In the S-(-)-amlodipine 2.5-mg group (n=263), 24-hour ambulatory systolic/diastolic blood pressure (±standard deviation) decreased from 131.5±15.0/82.1±10.7 mm Hg at baseline to 126.0±13.5/78.5±9.5 mm Hg at 8 weeks of follow-up by a least square mean (±standard error) change of 6.0±0.6/3.8±0.4 mm Hg. In the S-(-)-amlodipine 5-mg group (n=260), the corresponding changes were from 133.6±13.7/83.1±9.9 mm Hg to 125.0±12.0/78.2±8.9 mm Hg by 8.1±0.6/4.7±0.4 mm Hg, respectively. The between-group differences in changes in 24-hour systolic/diastolic blood pressure were 2.1/0.9 (P=.02/.17) mm Hg. Similar trends were observed for daytime and nighttime ambulatory and clinic blood pressure. The incidence rate was similar for all adverse events. An initial high dose of S-(-)-amlodipine improved ambulatory blood pressure control with similar tolerability as an initial low dose in hypertension.

Indexed as

AgedAmlodipineAntihypertensive AgentsBlood PressureBlood Pressure Monitoring, AmbulatoryCalcium Channel BlockersDose-Response Relationship, DrugDrug ToleranceFemaleHumansHypertensionMaleMiddle AgedTreatment OutcomeAmlodipineAntihypertensive AgentsCalcium Channel Blockersambulatory blood pressureefficacyinitial doseS-(-)-amlodipinetolerability

Identifiers

PMID28560779
PMCPMC8031062

What OpenQuestion holds

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Registered trials

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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.