About the Authors

Vivian Chen

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Richard E. Staub

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Sylvia Fong

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Mary Tagliaferri

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Isaac Cohen

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Emma Shtivelman

emmas@bionovo.com

Affiliation BioNovo, Inc., Emeryville, California, United States of America

Competing Interests

The authors acknowledge that they are paid employees and stock holders of BioNovo, Inc, and that this study, in its entirety, was supported by funds from BioNovo. Bezielle (BZL101) is Bionovo's proprietary botanical drug candidate (FDA-IND: 59,521) for the treatment of metastatic breast cancer. Bionovo's United States Patent No. 7,700,136 covers a method of treating breast cancer using an extract of Scutellaria Barbata. This patent also covers the use of Bionovo's proprietary BezielleR formulation as a monotherapy for the treatment of breast cancer. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ES RS. Performed the experiments: VC ES RS SF. Analyzed the data: ES RS IC MT. Wrote the paper: ES.