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Rowan T. Chlebowski, M.D., Ph.D.
Rowan T. Chlebowski, M.D., Ph.D.

General Information:



Professor and Chief, Harbor-UCLA Medical Center, Department of Internal Medicine, Medical Oncology/Hematology
Member, JCCC Healthy and At-Risk Populations Program Area


Medical Oncology, University of Southern California School of Medicine, Los Angeles County/USC Medical Center, 1976 - 1979
Internal Medicine, Cleveland Metropolitan General Hospital, 1974 - 1976
Internal Medicine, Cleveland Metropolitan General Hospital, 1974 - 1976
Medical Degree:
M.D., Case Western Reserve University, School of Medicine, 1974
Ph.D., Case Western Reserve University, School of Medicine, 1974

Contact Information:

(310) 222-2217

Scientific Interest(s):

Dr. Rowan Chlebowski’s research focuses on women’s health and breast cancer with a focus on hormonal mediation of cancer lifestyle change and cancer prevention.

Chlebowski and his colleagues are participating in and providing leadership direction for large scale, multi-center clinical trials designed to evaluate potential intervention to reduce chronic disease risk. These trials include studies of the Women’s Health Initiative evaluating menopausal hormone therapy and dietary intervention in postmenopausal women and studies of the use of aromatase inhibitors to reduce breast cancer risk (ExCel Trial).

Selected Cancer-Related Publications:

Chlebowski RT, Johnson KC, Kooperberg C, Pettinger M, Wactawski-Wende J, Rohan T, Lane D, O’Sullivan MJ, Yasmeen S, Hiatt RA, Schoen RE, Shikany JM, Vitolins M, Khandekar J, Hubbell A. Calcium plus vitamin D supplementation and the risk of breast cancer. J Natl Cancer Inst 2008;100(20):1604-1616.

Chlebowski RT, Anderson GL, Lane DS, Aragaki AK, Rohan T, Yasmeen S, Sarto G, Rosenberg CA, Hubbell FA; Women's Health Initiative Investigators. Predicting risk of breast cancers in postmenopausal women by hormone receptor status. J Natl Cancer Inst. 2007 Nov 21;99(22):1695-705. Epub 2007 Nov 13.

Chlebowski RT, Blackburn GL, Thomson CA, Nixon DW, Shapiro A, Hoy MK, Goodman MT, Giuliano AE, Karanja N, McAndrew P, Hudis C, Butler J, Merkel D, Kristal A, Caan B, Michaelson R, Vinciguerra V, Del Prete S, Winkler M, Hall R, Simon M, Winters BL, Elashoff RM. Dietary fat reduction and breast cancer outcome: interim efficacy results from the Women's Intervention Nutrition Study. J Natl Cancer Inst. 2006; 98(24): 1767-76.

Chlebowski RT, Wactawski-Wende J, Ritenbaugh C, Hubbell FA, Ascensao J, Rodabough RJ, Rosenberg CA, Taylor VM, Harris R, Chen C, Adams-Campbell LL, White E. Estrogen plus progestin and colorectal cancer in postmenopausal women. N Engl J Med. 2004; 350(10): 991-1004.

Chlebowski RT, Hendrix SL, Langer RD, Stefanick ML, Gass M, Lane D, Rodabough RJ, Gilligan MA, Cyr MG, Thomson CA, Khandekar J, Petrovitch H, McTiernan A. Influence of estrogen plus progestin on breast cancer and mammography in healthy postmenopausal women: the Women's Health Initiative Randomized Trial. JAMA. 2003; 289(24): 3243-53.