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Breast CancerPhase 1NCT00709020

White Button Mushroom Extract in Preventing the Recurrence of Breast Cancer in Postmenopausal Breast Cancer Survivors

A Phase 1 study testing white button mushroom extract, flow cytometry and high performance liquid chromatography in people with Breast Cancer and Cancer Survivor, run by City of Hope Medical Center at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

RATIONALE: White button mushroom extract may stop or delay the recurrence of breast cancer in postmenopausal breast cancer survivors. PURPOSE: This phase I trial is studying the side effects and best dose of white button mushroom extract in preventing the recurrence of breast cancer in postmenopausal women who are… Read more about this study

Who is it for?
Ages 21 years and older, women only
Conditions the study is for
Breast Cancer, Cancer Survivor
What is being tested?
white button mushroom extract, flow cytometry and high performance liquid chromatography
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
2 sitesUnited States
Study dates
Jun 2008to Dec 2010
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

DISEASE CHARACTERISTICS:

  • Meets 1 of the following criteria:
  • Prior diagnosis of infiltrating carcinoma of the breast ≥ 5 years prior to study entry
  • Prior diagnosis of ductal carcinoma in situ
  • No evidence of disease
  • Completed all cancer therapy, with the exception of reconstructive surgery, at least 6 months prior to study entry
  • Meets one of the following criteria:
  • Normal mammogram within 1 year of study entry
  • Underwent bilateral mastectomy and has been in remission for 5 years, as documented by an oncologist
  • Hormone receptor status not specified

PATIENT CHARACTERISTICS:

  • ECOG performance status 0-1
  • WBC ≥ 3,500/mm³
  • ANC ≥ 1,500/mm³
  • Platelet count ≥ 100,000/mm³
  • Hemoglobin ≥ 9.0 g/dL
  • Postmenopausal, defined as any of the following:
  • Continuous absence of menstruation for 12+ months
  • Status post bilateral oophorectomy
  • Status post hysterectomy with follicle-stimulating hormone in menopausal range
  • Creatinine ≤ 1.5 times upper limit of normal (ULN) or less
  • Total bilirubin ≤ 1.5 times ULN
  • AST and ALT < 2 times ULN
  • No allergy to mushrooms
  • No personal history of any invasive cancer, other than breast cancer, or squamous cell or basal cell skin cancer
  • No osteoporosis, defined as a bone-mineral density T-score of < -2.5 on dual-energy x-ray absorptiometry scan
  • No major systemic infections or other major medical illnesses of the cardiovascular, respiratory, or digestive system

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  • More than 3 months since prior and no concurrent hormone-modifying medications, including any of the following:
  • Oral contraceptives
  • Hormone replacement
  • Selective estrogen receptor modifiers
  • Other aromatase inhibitors
  • Gonadotropic-releasing hormone modifiers
  • At least 1 month since prior and no other concurrent mushroom extracts or DHEA as a dietary supplement
  • No concurrent therapy, except continued medications for unrelated illness that are not excluded, and necessary medications for unrelated acute illnesses that may occur during the study (e.g., cold, flu, or infection)
  • No more than 3 concurrent servings per week of the following foods:
  • Flaxseeds and flaxseed meal
  • High-energy bars or diet bars containing soy or soy protein
  • Liquid-nutrition drinks containing soy or soy protein (e.g., Odwalla Future Shake or Ensure Plus)
  • Miso soup
  • Natto
  • Packaged mixed dishes with soy or tofu (e.g., lasagna, burritos, or stir-fry)
  • Cooked soybeans or edamame (i.e., green soybeans)
  • Roasted soy nuts
  • Soymilk, regular or low-fat, plain or flavored
  • Soy cheese, such as cheddar, mozzarella, cram cheese, or parmesan (includes all foods made with soy cheese)
  • Soy protein powders (e.g., performance or body-builder powders)
  • Soy yogurt, all types
  • Soy sauce, tamari, teriyaki sauce, Szechuan sauce, or hoisin sauce
  • Soy ice cream, tofutti, or other soy desserts
  • Tempeh, all types
  • Tofu, all types, including low-fat, flavored, marinated, and smoked
  • Tofu or soy breakfast sausage, bacon, or other breakfast meat
  • Tofu or soy cold cuts, hot dogs, or other deli meat substitutes
  • Veggie soy or tofu burger, ground meat substitute (texturized vegetable protein), or soy or tofu, chicken, or turkey
  • Concurrent supplemental calcium and/or vitamin D and bisphosphonates allowed provided doses remain constant throughout the run-in and treatment portions of the trial

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • City of Hope Comprehensive Cancer Center

    Duarte, California, 91010-3000

  • City of Hope Medical Group

    Pasadena, California, 91105

Other trials in United States

About this study

Official title: A Translational Breast Cancer Prevention Trial of Mushroom Powder in Postmenopausal Breast Cancer Survivors

RATIONALE: White button mushroom extract may stop or delay the recurrence of breast cancer in postmenopausal breast cancer survivors.

PURPOSE: This phase I trial is studying the side effects and best dose of white button mushroom extract in preventing the recurrence of breast cancer in postmenopausal women who are breast cancer survivors.

Read the detailed description

OBJECTIVES:

Primary

  • To show that a whole food extract of white button mushrooms (WBM) can inhibit aromatase-induced estrogen biosynthesis in postmenopausal women who are breast cancer survivors (BCS).
  • To determine the optimal daily dose of WBM needed to induce aromatase inhibition of estrogen biosynthesis in these patients.
  • To determine the bioavailability of C-18 unsaturated fatty acids, which are thought to moderate the anticancer effects of WBM.

Secondary

  • To determine the safety and tolerability of WBM in humans via serial comprehensive symptom questionnaires, pre- and post-treatment markers of bone metabolism, and pre- and post-treatment comprehensive lipid panels.
  • To explore potential alternate antitumor mechanisms, specifically the effect of WBM on cytokines as well as innate and adaptive cellular immunity.
  • To describe barriers experienced in recruitment of ethnically diverse subjects from the community into a secondary prevention BCS trial utilizing a dietary supplement intervention in an effort to enhance feasibility of a subsequent phase II trial.

OUTLINE: This is a dose-escalation study.

Patients receive oral white button mushroom extract twice daily for 12 weeks in the absence of a second primary ductal carcinoma in situ, invasive breast cancer, or unacceptable toxicity.

Patients undergo blood and urine sample collection at baseline and periodically during treatment for pharmacokinetic, pharmacodynamic, and immunologic correlative studies. Blood and urine samples are analyzed for concentrations of C-18 unsaturated fatty acids (CUFA) by high-performance liquid chromatography tandem-mass spectrometry. Blood samples are also analyzed for anti-aromatase activity by ex vivo plasma aromatase inhibition assays; circulating sex steroid hormones by radioimmunoassay; serum immune cytokine levels by multiplex cytokine analyses; immunophenotyping, NK-cell activation status, and NK-cell function by multiparameter flow cytometry; lipid levels by lipid assays; and biochemical markers of bone metabolism by bone metabolism marker assays. DNA, RNA, and plasma samples are stored for post-trial pharmacogenomic studies.

Being tested
white button mushroom extract, flow cytometry, high performance liquid chromatography, laboratory biomarker analysis, mass spectrometry
Keywords
cancer survivor, breast cancer
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • white button mushroom extractDrug

    Dose escalation with six evaluable subjects per dose level. Doses begin at 5 g/day, then 8 g/day, then 10 g/day then 13 g/day.

  • flow cytometryOther

    Performed on blood samples taken day -14 and -7 prior to treatment and days 1, 8, 15, 29, 57 and 85 of treatment.

  • high performance liquid chromatographyOther

    Performed on blood samples taken day -14 and -7 prior to treatment and days 1, 8, 15, 29, 57 and 85 of treatment.

  • laboratory biomarker analysisOther

    Performed on blood samples taken pre-treatment on day 1 and on day 85 after treatment.

  • mass spectrometryOther

    Performed on blood samples taken day -14 and -7 prior to treatment and days 1, 8, 15, 29, 57 and 85 of treatment.

  • pharmacogenomic studiesOther

    Performed on blood samples taken on days 1, 8, 15, 29, 57 and 85 of treatment.

  • pharmacological studyOther

    Performed on blood samples taken pre-dose and at 0.25, 0.5, 0.75, 1, 2, 4 and 6 hours after White Button Mushroon extract on day 1 of treatment and pre-dose on days 8, 15, 29, 57 and 85 after start of treatment.

Study groups in NCT00709020
Study groupRoleWhat they receive
White Button Mushroom ExtractExperimentalNot described
Receives: Drug: white button mushroom extract; Other: flow cytometry; Other: high performance liquid chromatography; Other: laboratory biomarker analysis; Other: mass spectrometry; Other: pharmacogenomic studies; Other: pharmacological study

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Efficacy of white button mushroom extract (WBM) in reducing serum estradiol (E2)

    Measured: Baseline prior to treatment, days 8, 15, 29, 57 and 85 after the start of treatment.

  2. Serum sex steroid hormone levels

    Measured: Baseline prior to treatment, days 8, 15, 29, 57 and 85 after the start of treatment.

  3. Optimal daily dose of WBM

    Measured: 1 year after completion of the study

  4. Pharmacokinetics of C-18 unsaturated fatty acids (CUFA) as measured by high-performance liquid chromatography tandem-mass spectrometry

    Measured: Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 4 and 6 hours after White Button Mushroon extract on day 1 of treatment and pre-dose on days 8, 15, 29, 57 and 85 after start of treatment.

  5. Pharmacodynamics of WBM as measured by ex vivo plasma aromatase inhibition assays

    Measured: Pre-dose and at 0.25, 0.5, 0.75, 1, 2, 4 and 6 hours after White Button Mushroon extract on day 1 of treatment and pre-dose on days 8, 15, 29, 57 and 85 after start of treatment.

Secondary outcomes (7)
  1. Safety and tolerability of WBM as assessed by NCI CTCAE v3.0, symptom logs, bone metabolism markers, and pre- and post-treatment comprehensive lipid panels

    Measured: 4 months after completion of treatment

  2. Effect of WBM on cytokines as measured by multiplex cytokine analyses

    Measured: Day -14 and Day -7 before first treatment, Day 1, 8, 15, 29, 57 and 85 after treatment begins.

  3. Effect of WBM on innate and adaptive cellular immunity as measured by immunologic assays

    Measured: Day -14 and Day -7 before first treatment, Day 1, 8, 15, 29, 57 and 85 after treatment begins.

  4. Barriers to recruitment of ethnically diverse patients from the community

    Measured: 4 months after completion of treatment

  5. Dietary sources of CUFA as measured by food frequency questionnaires

    Measured: Day -14 before treatment begins, day 1, 29, 57 and 85 after treatment begins

  6. Bone metabolism markers (i.e., serum procollagen type-1 propeptide and urine N-telopeptide crosslinks)

    Measured: Day 1 of treatment and day 85 of treatment

  7. Fasting lipids (i.e., total cholesterol, HDL-cholesterol, LDL-cholesterol, and triglycerides)

    Measured: Day 1 of treatment and day 85 of treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jul 2008 (estimated)
  2. Study startJun 2008
  3. Primary completionDec 2010
  4. Study completionDec 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00709020
Sponsor's protocol ID
07213
Other IDs
P30CA033572, CHNMC-07213, CDR0000599204
Status last verified
Jun 2015
First submitted
2 Jul 2008
Last updated
8 Jun 2015
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing white button mushroom extract, flow cytometry and high performance liquid chromatography in people with Breast Cancer and Cancer Survivor, run by City of Hope Medical Center at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jun 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy of white button mushroom extract (WBM) in reducing serum estradiol (E2) (time frame: Baseline prior to treatment, days 8, 15, 29, 57 and 85 after the start of treatment.). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2015.

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