NCT01259700

Brief Summary

Cardiovascular disease is the leading cause of death in China. At the village level, strategies for the control of cardiovascular disease are mostly absent. National clinical guidelines for the management of hypertension and cardiovascular disease are rarely disseminated to, or implemented by, the village primary care providers. Salt reduction has greater potential in rural China than almost anywhere else in the world. Very high levels of salt consumption, very little use of processed food and most dietary salt deriving from home cooking makes the removal of salt from the diet easier, cheaper and more worthwhile than in almost any other setting. The two large-scale cluster-randomized controlled trials proposed here will precisely and reliably define the effect of two highly plausible intervention strategies on important clinical outcomes. The evidence provided by the project will form the basis for policy setting that has the potential to greatly reduce the occurrence of vascular disease in rural China and take an important step towards balancing the rural urban divide in health and healthcare.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

5 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2010

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

December 13, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 14, 2010

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
1.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2014

Completed
Last Updated

February 17, 2016

Status Verified

February 1, 2016

Enrollment Period

2 years

First QC Date

December 13, 2010

Last Update Submit

February 15, 2016

Conditions

Keywords

High blood pressurePrimary careCardiovascular disease preventionSalt reduction

Outcome Measures

Primary Outcomes (2)

  • Mean systematic blood pressure level

    October 2010 - December 2012

  • 24 hour urinary sodium

    October -December 2012

Secondary Outcomes (6)

  • 24 hour urinary potassium

    October-December 2012

  • Urinary sodium:potassium ratio

    October-December 2012

  • Receiving regular primary care

    October 2010 -December 2012

  • Taking anti-hypertensive medications

    October 2010 -December 2012

  • Taking aspirin

    October 2010 -December 2012

  • +1 more secondary outcomes

Other Outcomes (2)

  • Knowledge, attitude and behaviour relating to salt consumption

    October-December 2012

  • Awareness, treatment, and control of hypertension

    October 2010 - December 2012

Study Arms (4)

High risk management

EXPERIMENTAL
Behavioral: High-risk patient standardized management package

Salt reduction

EXPERIMENTAL
Behavioral: Community based salt reduction program

high risk management and salt reduction

EXPERIMENTAL
Behavioral: High-risk patient standardized management packageBehavioral: Community based salt reduction program

Usual care

NO INTERVENTION

Interventions

A primary-care based high cardiovascular risk management package delivered by village doctors

Also known as: high risk management
High risk managementhigh risk management and salt reduction

A community-based salt reduction program delivered mainly by community health educators

Also known as: Salt reduction
Salt reductionhigh risk management and salt reduction

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Physician-diagnosed history of coronary heart disease, ischemic stroke, or hemorrhagic stroke, or
  • Older age (50 years or older for men; 60 years or older for women) and having physician-diagnosed Type I or Type II diabetes
  • Older age (50 years or older for men; 60 years or older for women) and systolic blood pressure 160 mmHg (note that for simplicity, diastolic blood pressure is not included in the criteria)

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Hebei Province Center for Disease Prevention and Control ,China

Shijiazhuang, Hebei, China

Location

The First Hospital Of China Medical University

Shenyang, Liaoning, China

Location

Ningxia Medical University School of Public Health

Yinchuan, Ningxia, China

Location

Changzhi Medical College, China

Changzhi, Shanxi, China

Location

The Xi'an Jiaotong University School of Public Health

Xi’an, Shanxi, China

Location

Related Publications (7)

  • Chen S, Yan LL, Feng X, Zhang J, Zhang Y, Zhang R, Zhou B, Wu Y. Population-wide impact of a pragmatic program to identify and manage individuals at high-risk of cardiovascular disease: a cluster randomized trial in 120 villages from Northern China. Front Cardiovasc Med. 2024 May 24;11:1372298. doi: 10.3389/fcvm.2024.1372298. eCollection 2024.

  • McMahon EJ, Campbell KL, Bauer JD, Mudge DW, Kelly JT. Altered dietary salt intake for people with chronic kidney disease. Cochrane Database Syst Rev. 2021 Jun 24;6(6):CD010070. doi: 10.1002/14651858.CD010070.pub3.

  • Jardine MJ, Li N, Ninomiya T, Feng X, Zhang J, Shi J, Zhang Y, Zhang R, Zhang J, Hao J, Perkovic V, Heerspink HL, Wu Y, Yan LL, Neal B. Dietary Sodium Reduction Reduces Albuminuria: A Cluster Randomized Trial. J Ren Nutr. 2019 Jul;29(4):276-284. doi: 10.1053/j.jrn.2018.10.009. Epub 2018 Dec 24.

  • Li N, Yan LL, Niu W, Yao C, Feng X, Zhang J, Shi J, Zhang Y, Zhang R, Hao Z, Chu H, Zhang J, Li X, Pan J, Li Z, Sun J, Zhou B, Zhao Y, Yu Y, Engelgau M, Labarthe D, Ma J, MacMahon S, Elliott P, Wu Y, Neal B. The Effects of a Community-Based Sodium Reduction Program in Rural China - A Cluster-Randomized Trial. PLoS One. 2016 Dec 9;11(12):e0166620. doi: 10.1371/journal.pone.0166620. eCollection 2016.

  • Wang X, Li X, Vaartjes I, Neal B, Bots ML, Hoes AW, Wu Y. Does education level affect the efficacy of a community based salt reduction program? - A post-hoc analysis of the China Rural Health Initiative Sodium Reduction Study (CRHI-SRS). BMC Public Health. 2016 Aug 11;16(1):759. doi: 10.1186/s12889-016-3454-6.

  • Zhang J, Wu T, Chu H, Feng X, Shi J, Zhang R, Zhang Y, Zhang J, Li N, Yan L, Niu W, Wu Y. Salt intake belief, knowledge, and behavior: a cross-sectional study of older rural Chinese adults. Medicine (Baltimore). 2016 Aug;95(31):e4404. doi: 10.1097/MD.0000000000004404.

  • Yan LL, Fang W, Delong E, Neal B, Peterson ED, Huang Y, Sun N, Yao C, Li X, MacMahon S, Wu Y. Population impact of a high cardiovascular risk management program delivered by village doctors in rural China: design and rationale of a large, cluster-randomized controlled trial. BMC Public Health. 2014 Apr 11;14:345. doi: 10.1186/1471-2458-14-345.

MeSH Terms

Conditions

Cardiovascular DiseasesHypertension

Condition Hierarchy (Ancestors)

Vascular Diseases

Study Officials

  • Yangfeng Wu, PhD

    The George Institute for Global Health, China

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 13, 2010

First Posted

December 14, 2010

Study Start

December 1, 2010

Primary Completion

December 1, 2012

Study Completion

June 1, 2014

Last Updated

February 17, 2016

Record last verified: 2016-02

Locations