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Study identifier: NCT06028022 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

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

Condition: Estrogen Receptor-Positive Breast Carcinoma  ·  Sponsor: Mayo Clinic

PhasePhase 2
Planned participants80
Who can joinFemale, 18 Years to no upper limit
Healthy volunteersNo

About this study

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 arthralgias/myalgias are common symptoms in breast cancer patients taking aromatase inhibitors (AI). Given the long duration of AI treatment for some women (up to 10 years), these symptoms can significantly impact quality of life and premature discontinuation of AIs, a beneficial medication. Reishi mushrooms are among several medicinal mushrooms that have been used for hundreds of years, mainly in Asian countries, to help enhance the immune system, reduce stress, improve sleep, and lessen fatigue. Reishi mushroom extracts have not been studied explicitly for treatment-induced arthralgias/myalgias, but have been shown to improve quality of life, muscular strength, pain, and flexibility. Information from this study may help researchers determine the effect of Reishi mushroom extract on fatigue and arthralgias/myalgias in breast cancer patients receiving an AI.

This description comes directly from the study's public registry record.

Talk to the study team

Clinical Trials Referral Office  ·  855-776-0015  ·  mayocliniccancerstudies@mayo.edu

Always discuss trial participation with your own doctor first.

Locations (23)

Mayo Clinic Health System in Albert LeaAlbert Lea, Minnesota, United StatesRecruiting
Essentia Health Baxter ClinicBaxter, Minnesota, United StatesRecruiting
Sanford Joe Lueken Cancer CenterBemidji, Minnesota, United StatesRecruiting
Essentia Health Saint Joseph's Medical CenterBrainerd, Minnesota, United StatesRecruiting
Essentia Health Deer River ClinicDeer River, Minnesota, United StatesRecruiting
Essentia Health Saint Mary's - Detroit Lakes ClinicDetroit Lakes, Minnesota, United StatesRecruiting
Essentia Health Cancer CenterDuluth, Minnesota, United StatesRecruiting
Essentia Health Ely ClinicEly, Minnesota, United StatesRecruiting
Essentia Health FosstonFosston, Minnesota, United StatesRecruiting
Fairview Grand Itasca Clinic & HospitalGrand Rapids, Minnesota, United StatesRecruiting
Essentia Health Hibbing ClinicHibbing, Minnesota, United StatesRecruiting
Fairview Range Medical CenterHibbing, Minnesota, United StatesRecruiting

+ 11 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06028022