NCT03983603

Brief Summary

Plant stanols are known to lower low-density lipoprotein cholesterol. However, studies have suggested that these compounds also influence the immune system. Asthmatic responses are predominantly T helper (Th)2 cell dependent, while plant stanols were previously found to activate Th1 cells and shift the immune response away from the Th2 cell dominant asthmatic response. The question now is whether this also translates into a reduction of clinical symptoms in asthma patients.The primary objective of this study is to demonstrate clinical benefits of prolonged consumption of plant stanols (delivered via plant stanol esters) in asthma patients. The secondary objectives are to evaluate the mechanisms via which plant stanols modulate the immune system and to evaluate the effects of plant stanol ester consumption on cardiovascular (CVD) risk parameters.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
160

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 29, 2019

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

June 4, 2019

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 12, 2019

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2024

Completed
Last Updated

May 22, 2024

Status Verified

February 1, 2024

Enrollment Period

5.3 years

First QC Date

June 4, 2019

Last Update Submit

May 21, 2024

Conditions

Keywords

Plant stanolsAsthmaImmune systemMetabolic health

Outcome Measures

Primary Outcomes (1)

  • Asthma control questionnaire score

    The ACQ consists of seven questions: five questions are on asthma related symptoms, one on medication use and one on the FEV1. Participants are asked to score their symptoms and medication use of the past week on a scale from zero to six. The score of the ACQ is the average score on the seven questions. A score of zero means that asthma is fully controlled; a score of six means that asthma is severely uncontrolled. The minimal clinically important difference is 0.5. The ACQ has been validated and is widely use in research and clinical settings.

    Change between T=0 months and T=12 months

Secondary Outcomes (40)

  • Asthma control questionnaire score

    T=0 months, T=3 months, T=6 months, T=9 months, T=12 months

  • Forced expiratory volume in 1 second

    T=0 months, T=3 months, T=6 months, T=9 months, T=12 months

  • Forced vital capacity

    T=0 months, T=3 months, T=6 months, T=9 months, T=12 months

  • Asthma related medication use

    Throughout 1 year

  • Number of visits to the general practitioner or hospital

    Throughout 1 year

  • +35 more secondary outcomes

Other Outcomes (1)

  • Mechanistic outcomes for measuring the immune response

    Weekly from T=12 months to T=13 months

Study Arms (2)

Plant stanol group

EXPERIMENTAL

This arm receives soft chews containing 0.5g of plant stanols (delivered as plant stanol esters).

Dietary Supplement: Soft chews containing 0.5g plant stanols (delivered as plant stanol esters)

Placebo group

PLACEBO COMPARATOR

This arm receives soft chews that do not contain 0.5g of plant stanols (delivered as plant stanol esters).

Dietary Supplement: Placebo soft chew

Interventions

Soft chews containing 0.5g plant stanols delivered as plant stanol esters

Plant stanol group
Placebo soft chewDIETARY_SUPPLEMENT

Soft chew that does not contain plant stanols

Placebo group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Have been treated with prescribed asthma medication for at least one year
  • Aged 18-70 years old
  • BMI between 20 and 35 kg/m2
  • Willing to abstain from products containing plant sterols or stanols one month prior to the study (products with a cholesterol lowering claim of Becel ProActiv, Benecol, Danacol, store brands)
  • Willing to abstain from products containing plant sterols or stanols during the study (products with a cholesterol lowering claim of Becel ProActiv, Benecol, Danacol, store brands)
  • Willing to keep the intake of fish oil supplements constant

You may not qualify if:

  • Currently smoking or quitted smoking in the past year, with a maximum of 10 packyears as smoking history (packyears = packs per day \* years of smoking)
  • Allergy to an ingredient of the soft chews
  • Suffering from inflammatory diseases (for CVD, illness must be minimally 3 years ago and currently under control in order to participate in the study)
  • Fasting plasma glucose \> 7.0 mmol/L
  • Fasting serum TC \> 8.0 mmol/L
  • Having donated blood within one month prior to the start of the study, or planning to donate blood during the study
  • Pregnant women
  • Breastfeeding women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maastricht University Medical Center

Maastricht, Limburg, 6229ER, Netherlands

RECRUITING

MeSH Terms

Conditions

AsthmaCardiovascular Diseases

Interventions

Parturitionplant stanol ester

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

PregnancyReproductionReproductive Physiological PhenomenaReproductive and Urinary Physiological Phenomena

Study Officials

  • Jogchum Plat, PhD

    Maastricht University Medical Center

    PRINCIPAL INVESTIGATOR
  • Ronald P Mensink, PhD

    Maastricht University Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 4, 2019

First Posted

June 12, 2019

Study Start

April 29, 2019

Primary Completion

September 1, 2024

Study Completion

September 1, 2024

Last Updated

May 22, 2024

Record last verified: 2024-02

Locations