Turkey Tail Mushroom for Treating Post-Menopausal Women With HER2-Negative ER-Positive Breast Cancer Undergoing Surgery

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexFemale
Age18+
SponsorMayo Clinic

About this trial

This phase II trial tests how well turkey tail mushroom (TTM) works in treating post-menopausal women with HER2-negative, estrogen receptor (ER)-positive breast cancer undergoing surgery. TTM is a common mushroom. In traditional Chinese medicine, it is used for enhancing function and removing toxins, as well as for cancer, hepatitis, and infections. There is previous evidence of significant tumor shrinkage occurring in the 2-month window between diagnosis and surgery in women who have taken TTM. Giving TTM may be effective in treating post-menopausal women with HER2-negative, ER-positive breast cancer undergoing surgery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Women ≥ 18 years of age

Histological confirmation of ER+, HER2- breast cancer, newly diagnosed and tissue available for central confirmation of Ki-67 measurement. Subjects are eligible if they have a Ki-67 of ≥10%. Ki-67 will be repeated for patients who have had this done externally.

Scheduled for definitive breast surgery

Detectable disease as defined by mammography, breast ultrasound of greater than 5mm in size.

Disqualifiers

Ki-67 of <10%

Current use of any medicinal mushrooms

Patient with locally advanced cancer who will require neoadjuvant therapy or metastatic cancer

Currently on systemic chemotherapy

Trial design

Design model

Single group

Treatments tested in this trial

  • Coriolus Versicolor Extract

    Drug

    Dietary Supplement Given PO

  • Questionnaire Administration

    Other intervention

    Ancillary studies

Treatment groups

40 Participants
are divided into 1 treatment group
Group A: Treatment (TTM)Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Change in Ki-67

Change in Ki-67 from the time of enrollment (pre-treatment) to the time of surgery (post-treatment) will be recorded. Slides from the original biopsy at the time of diagnosis will be used to assess pre-treatment Ki-67. A tissue sample obtained at the time of surgery will be used to assess Ki-67 post-treatment.

Time frame
Baseline; at the time of surgery

Secondary outcomes

1

Quality of life changes

Changes in quality of life will be assessed using the Symptom Experience Diary, which will be completed by study staff during weekly phone calls with participants. The Symptom Experience Diary consists of 2 yes/no questions and 10 questions answered on a scale of 0-10 where 0=none at all and 10=as bad as it can be.

Time frame
Up to 10 weeks
2

Adverse effects of Turkey Tail Mushrooms (TTM)

Adverse effects of TTM will be assessed by the number of patients with grade 2 or higher toxicities.

Time frame
Up to 10 weeks
3

Patient-reported outcomes

Patient reported outcomes will be assessed using the Symptom Experience Diary, which will be completed by study staff during weekly phone calls with participants. The Symptom Experience Diary consists of 2 yes/no questions and 10 questions answered on a scale of 0-10 where 0=none at all and 10=as bad as it can be.

Time frame
Up to 10 weeks

Other outcomes

Sponsors and contacts

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