Phytoestrogens and Breast Cancer - Effects of Phytoestrogens on Markers of Disease Progression and Gene Expression

NCT ID: NCT04880369

Last Updated: 2024-08-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2021-03-31

Study Completion Date

2022-12-31

Brief Summary

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The aim is to investigate if soy isoflavones and lignans affect markers of disease progression and gene expression among breast cancer patients receiving neo-adjuvant treatment in a three arm, double-blinded, randomized placebo-controlled trial (RCT) comparing: soy isoflavone supplementation, lignan supplementation, and placebo.

Detailed Description

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Conditions

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Breast Cancer Breast Neoplasms Breast Cancer Female

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The study planned to include 150 women.
Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Lignan capsule

1 capsule/day from baseline to end-of-follow-up (approx. 4 months)

Group Type EXPERIMENTAL

Lignans

Intervention Type DIETARY_SUPPLEMENT

Commercially available dietary supplement (capsule) containing 63 mg lignans (secoisolaricirecinol)

Isoflavones capsule

1 capsule/day from baseline to end-of-follow-up (approx. 4 months)

Group Type EXPERIMENTAL

Soy isoflavones

Intervention Type DIETARY_SUPPLEMENT

Commercially available dietary supplement (capsule) containing 60 mg isoflavones (genistein, daidzein and glycitein).

Placebo capsule

1 capsule/day from baseline to end-of-follow-up (approx. 4 months)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

The placebo capsules are supplied and packaged by Region Hovedstadens Apotek (Denmark) and will contain lactose monohydrate, potato starch, gelatin, magnesium stearate and talc.

Interventions

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Soy isoflavones

Commercially available dietary supplement (capsule) containing 60 mg isoflavones (genistein, daidzein and glycitein).

Intervention Type DIETARY_SUPPLEMENT

Lignans

Commercially available dietary supplement (capsule) containing 63 mg lignans (secoisolaricirecinol)

Intervention Type DIETARY_SUPPLEMENT

Placebo

The placebo capsules are supplied and packaged by Region Hovedstadens Apotek (Denmark) and will contain lactose monohydrate, potato starch, gelatin, magnesium stearate and talc.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Diagnosed with breast cancer at "Brystkirurgisk Afdeling" at Rigshospitalet and Herlev Hospitals (within the last 30 days).
* Advised (and accepted) to receive neo-adjuvant treatment
* Primary unilateral breast cancer
* Treatment is expected to be curative
* Is expected to be able to attend surgery

Exclusion Criteria

* Allergic to soy
* Celiac disease
* Inflammatory bowel disease
* Not understanding Danish (patient material and questionnaires are in Danish)
* Prior diagnosis of breast cancer
* Use of dietary supplements containing lignans or isoflavones three months prior to diagnosis
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Rigshospitalet, Denmark

OTHER

Sponsor Role collaborator

Danish Cancer Society

OTHER

Sponsor Role lead

Responsible Party

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Cecilie Kyrø

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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R174-A11507-17-S52

Identifier Type: -

Identifier Source: org_study_id

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