Supportive Care in Cancer

, Volume 21, Issue 4, pp 1185–1192 | Cite as

The use of Ginkgo biloba for the prevention of chemotherapy-related cognitive dysfunction in women receiving adjuvant treatment for breast cancer, N00C9

  • Debra L. Barton
  • Kelli Burger
  • Paul J. Novotny
  • Tom R. Fitch
  • Sadhna Kohli
  • Gamini Soori
  • Mary Beth Wilwerding
  • Jeff A. Sloan
  • Lisa A. Kottschade
  • Kendrith M. RowlandJr.
  • Shaker R. Dakhil
  • Daniel A. Nikcevich
  • Charles L. Loprinzi
Original Article

Abstract

Purpose

Patients undergoing treatment for cancer often report problems with their cognitive function, which is an essential component of health-related quality of life. Pursuant to this, a two-arm randomized, placebo-controlled, double-blind, phase III clinical trial was conducted to evaluate Ginkgo biloba (EGB 761) for the prevention of chemotherapy-related cognitive dysfunction in patients with breast cancer.

Methods

Previously chemotherapy naïve women about to receive adjuvant chemotherapy for breast cancer were randomized to receive 60 mg of EGB 761 or a matching placebo twice daily. The study agent was to begin before their second cycle of chemotherapy and to be taken throughout chemotherapy and 1 month beyond completion. The primary measure for cognitive function was the High Sensitivity Cognitive Screen (HSCS), with a secondary measure being the Trail Making Tests (TMT) A and B. Subjective assessment of cognitive function was evaluated by the cognitive subscale of the Perceived Health Scale (PHS) and the Profile of Mood States (POMS). Data were collected at baseline and at intervals throughout and after chemotherapy, up to 24 months after completion of adjuvant treatment. The primary statistical analysis included normalized area under the curve (AUC) comparisons of the HSCS, between the arms. Secondary analyses included evaluation of the other measures of cognition as well as correlational analyses between self-report and cognitive testing.

Results

One hundred and sixty-six women provided evaluable data. There were no significant differences in AUC up to 12 months on the HSCS between arms at the end of chemotherapy or at any other time point after adjuvant treatment. There were also no significant differences in TMT A or B at any data point. Perceived cognitive functions, as measured by the PHS and confusion/bewilderment subscale of the POMS, were not different between arms at the end of chemotherapy. There was also little correlation between self-reported cognition and cognitive testing. No differences were observed in toxicities per Common Terminology Criteria for Adverse Events (CTCAE) assessment between Ginkgo biloba and placebo throughout the study; however, after chemotherapy, the placebo group reported worse nausea (p = .05).

Conclusion

This study did not provide any support for the notion that Ginkgo biloba, at a dose of 60 mg twice a day, can help prevent cognitive changes from chemotherapy. These analyses do provide data to further support the low associations between patients' self-report of cognition and cognitive performance, based on more formal testing.

Keywords

Ginkgo biloba Chemotherapy-related cognitive dysfunction Adjuvant treatment Breast cancer Dietary supplements 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Debra L. Barton
    • 1
  • Kelli Burger
    • 1
  • Paul J. Novotny
    • 1
  • Tom R. Fitch
    • 2
  • Sadhna Kohli
    • 1
  • Gamini Soori
    • 3
  • Mary Beth Wilwerding
    • 3
  • Jeff A. Sloan
    • 1
  • Lisa A. Kottschade
    • 1
  • Kendrith M. RowlandJr.
    • 4
  • Shaker R. Dakhil
    • 5
  • Daniel A. Nikcevich
    • 6
  • Charles L. Loprinzi
    • 1
  1. 1.Mayo Clinic RochesterRochesterUSA
  2. 2.Mayo Clinic ArizonaScottsdaleUSA
  3. 3.Missouri Valley Cancer ConsortiumOmahaUSA
  4. 4.Carle Cancer Center CCOPUrbanaUSA
  5. 5.Wichita Community Clinical Oncology ProgramWichitaUSA
  6. 6.Duluth CCOPDuluthUSA

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