NCT04037943

Brief Summary

This study evaluates the feasibility of walnuts supplementation among population of high CVD risks over a period of 6 months. 70 participants will be controls receiving non-edible gifts. 70 participants will be given 30 grams of walnuts everyday and 70 participants will be given 60 grams of walnuts a day.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
210

participants targeted

Target at P50-P75 for not_applicable cardiovascular-diseases

Timeline
Completed

Started Oct 2019

Geographic Reach
1 country

1 active site

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

First Submitted

Initial submission to the registry

January 14, 2019

Completed
7 months until next milestone

First Posted

Study publicly available on registry

July 30, 2019

Completed
3 months until next milestone

Study Start

First participant enrolled

October 14, 2019

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 30, 2020

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 24, 2021

Completed
Last Updated

August 9, 2022

Status Verified

August 1, 2022

Enrollment Period

10 months

First QC Date

January 14, 2019

Last Update Submit

August 8, 2022

Conditions

Keywords

Alpha linolenic acid

Outcome Measures

Primary Outcomes (1)

  • Post-intervention differences in blood plasma alpha linolenic acid between groups

    Blood plasma alpha linolenic acid will be measured at baseline and 6 months (end of trial).

    From baseline to 6 months

Secondary Outcomes (2)

  • Post-intervention differences in estimated dietary nuts intake from 24h dietary recall between groups

    From baseline to 6 months

  • Differences in adherence and acceptability of walnuts between the high and low dose groups

    From 2 week, 12 weeks to 6 months

Other Outcomes (6)

  • Post-intervention differences in plasma total triglycerides between groups

    From baseline to 6 months

  • Post-intervention differences in plasma total cholesterol between groups

    From baseline to 6 months

  • Post-intervention differences in plasma HDL- cholesterol between groups

    From baseline to 6 months

  • +3 more other outcomes

Study Arms (3)

Low-dose group

EXPERIMENTAL

Low-dose group will received 30 grams of walnuts everyday during the study period of 6 months.

Dietary Supplement: Walnuts 30 grams

High-dose group

EXPERIMENTAL

High-dose group will received 60 grams of walnuts everyday during the study period of 6 months.

Dietary Supplement: Walnuts 60 grams

Control group

NO INTERVENTION

Control group will received non-edible gifts during the study period of 6 months.

Interventions

Walnuts 30 gramsDIETARY_SUPPLEMENT

Roasted walnuts without salt or sugar.

Low-dose group
Walnuts 60 gramsDIETARY_SUPPLEMENT

Roasted walnuts without salt or sugar.

High-dose group

Eligibility Criteria

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

You may qualify if:

  • A history of CVD, defined on the basis of a prior hospitalisation for a myocardial infarction or stroke, unstable angina, coronary artery bypass graft, percutaneous coronary intervention (with or without stenting), peripheral revascularization (angioplasty or surgery), symptomatic with documented hemodynamically-significant carotid or peripheral vascular disease, or amputation secondary to vascular disease, OR
  • Male aged \>60 years, or female aged\>65 years, AND
  • With at least two of the following risk factors:
  • Type 2 diabetes requiring treatment with at least two oral anti-hyperglycaemic agents and/or insulin
  • Systolic blood pressure \> 140 mmHg while on one or more antihypertensive agents
  • Current daily smoking
  • Dyslipidaemia defined as HDL-cholesterol\<1.0mmol/L or LDL-cholesterol\>6.0mmol/L
  • Micro or macro albuminuria

You may not qualify if:

  • Allergic to nuts (history of food allergy with hypersensitivity to any of the components of nuts)
  • Other serious medical condition that prevents nut consumption (e.g. digestive disease with fat intolerance)
  • Any medical condition thought to limit survival to less than 1 year
  • Difficulty with consuming nuts (e.g. dental health issues that prevent chewing walnuts)
  • Unwilling to consume nuts

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yi Zhao

Yinchuan, Ningxia, 750004, China

Location

Related Publications (1)

  • Liu Y, Li N, Yan N, Pan XF, Li Q, Micha R, Mozaffarian D, Huffman MD, Wang Y, Neal B, Tian M, Zhao Y, Wu JHY. Protocol for a randomized controlled trial to test the acceptability and adherence to 6-months of walnut supplementation in Chinese adults at high risk of cardiovascular disease. Nutr J. 2021 Jan 6;20(1):3. doi: 10.1186/s12937-020-00660-7.

MeSH Terms

Conditions

Cardiovascular DiseasesDyslipidemias

Condition Hierarchy (Ancestors)

Lipid Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
This study is a single-blinded trial where investigators and outcome assessors will be blinded to the groups the participants are randomized to.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This study is a three-group parallel design trial. The paralele groups will be the control group, the low-dose intervention group, and the high-dose intervention group. Eligible participants will be randomly assigned to one of the three groups.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 14, 2019

First Posted

July 30, 2019

Study Start

October 14, 2019

Primary Completion

July 30, 2020

Study Completion

December 24, 2021

Last Updated

August 9, 2022

Record last verified: 2022-08

Locations