Status:

RECRUITING

Reishi Mushroom Extract for Fatigue and/or Arthralgias/Myalgias in Patients With Breast Cancer on Aromatase Inhibitors

Lead Sponsor:

Mayo Clinic

Conditions:

Estrogen Receptor-Positive Breast Carcinoma

Eligibility:

FEMALE

18+ years

Phase:

PHASE2

Brief Summary

This phase II trial tests how well Reishi mushroom extract works in treating fatigue and/or joint/muscle pain (arthralgias/myalgias) in patients with breast cancer on aromatase inhibitors. Fatigue and...

Detailed Description

PRIMARY OBJECTIVE: I. To evaluate the efficacy of 1,000 mg three times daily (TID) of Reishi mushroom extracts as therapy for cancer-related fatigue measured by uniscale measurement at the end of fou...

Eligibility Criteria

Inclusion

  • Age ≥ 18 years
  • History of breast cancer, estrogen receptor positive (ER+), Her 2 positive or negative
  • Fatigue ≥ 4/10
  • Currently post-menopausal (as defined by National Comprehensive Cancer Network (version 4.2024), taking any aromatase inhibitor in the curative setting and planning to be on such for at least 8 weeks after registration. \[Patients on concurrent ovarian suppression (such as with leuprolide acetate, goserelin) are allowed\]; CDK 4/6 inhibitors abemaciclib, ribociclib ARE allowed
  • Prior treatment: last chemotherapy ≥ 90 days prior to randomization (if treated with chemotherapy)
  • On a stable dose of pain medications if pain medications are being regularly used. (i.e., no change in dosage in the past 30 days)
  • If on supplements, must be on stable dose with no plan to change; not on or planning any acupuncture or other specific supportive modalities for fatigue or AI arthralgias
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1 or 2
  • White blood cell count (WBC) ≥ 3,000/mm\^3 (obtained ≤ 30 days prior to randomization)
  • Hemoglobin ≥ 10 g/dL (obtained ≤ 30 days prior to randomization)
  • Platelet count ≥ 100,000/mm\^3 (obtained ≤ 30 days prior to randomization)
  • Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (obtained ≤ 30 days prior to randomization)
  • Alanine aminotransferase (ALT) or aspartate transaminase (AST) ≤ 1.2 x ULN (obtained ≤ 30 days prior to randomization)
  • Prothrombin time (PT)/activated partial thromboplastin time (aPTT) ≤ 1.5 x ULN (obtained ≤ 30 days prior to randomization)
  • Negative pregnancy test done ≤ 7 days prior to registration, for persons on concurrent ovarian suppression only
  • Provide informed consent
  • Ability to complete questionnaires
  • Willing to return to enrolling institution during the active monitoring phase of the study
  • Patients who have had a recent surgery or procedure should be healed and cleared by their clinician and/or surgeon per local standards, prior to registration

Exclusion

  • Other known uncontrolled medical conditions causing fatigue such as untreated thyroid disease, depression, fibromyalgia, chronic fatigue syndrome, infection, autoimmune disease, or active/untreated hepatitis
  • Allergy to mushrooms
  • On anticoagulation medication or aspirin or having a known bleeding disorder
  • On any specific medication for fatigue (e.g., methylphenidate)
  • Metastatic cancer diagnosis (history of nodal metastases is allowed)
  • Chronic steroid use, unless on physiologic replacement doses
  • Current use of any medical mushrooms
  • On medications for diabetes
  • History of symptomatic hypotension
  • Taking CYP3A4, CYP2D6 sensitive substrates which can be located at the following link:
  • https://www.fda.gov/drugs/drug-interactions-labeling/healthcare-professionals-fdas-examples-drugs-interact-cyp-enzymes-and-transporter-systems
  • Drugs which exhibit either \>20% inhibition or \>20% induction of CYP2E1 in vivo, such as: Acetaminophen, Dapsone, Enflurane, Halothane, Isoflurane, \& Theophylline
  • Taking olaparib
  • Any of the following because this study involves an agent that has unknown genotoxic, mutagenic and teratogenic effects:
  • Pregnant persons
  • Nursing persons
  • Persons on concurrent ovarian suppression who are unwilling to employ adequate contraception (e.g., hormonal methods, barrier methods, intrauterine device, abstinence)
  • Planned surgery or procedure during time on study and ≤ 14 days after last dose, due to bleeding risks

Key Trial Info

Start Date :

October 18 2023

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

October 16 2026

Estimated Enrollment :

80 Patients enrolled

Trial Details

Trial ID

NCT06028022

Start Date

October 18 2023

End Date

October 16 2026

Last Update

December 29 2025

Active Locations (23)

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Page 1 of 6 (23 locations)

1

Mayo Clinic Health System in Albert Lea

Albert Lea, Minnesota, United States, 56007

2

Essentia Health Baxter Clinic

Baxter, Minnesota, United States, 56425

3

Sanford Joe Lueken Cancer Center

Bemidji, Minnesota, United States, 56601

4

Essentia Health Saint Joseph's Medical Center

Brainerd, Minnesota, United States, 56401