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Keck Medical Center of USC
A Randomized, Multicenter, Double-Blind Phase 3 Study of PD-0332991 (Oral CDK 4/6 Inhibitor) plus Letrozole versus Placebo plus Letrozole for the Treatment of Postmenopausal Women with ER (+), HER2 (-) Breast Cancer who have not Received any Prior Systemic Anti-Cancer Treatment for Advanced Disease
Not Open (Closed)
Defintions of terms and FAQ about clinical trials.
Debasish Tripathy, M.D.
Other Trial Staff:
Kristy Watkins, R.N., Nancy Perez, R.N., Yvonne Flores, D.M., Margarita Carranza, D.M.
to see study documents.
Click here to see trial eligibility criteria and further details at ClinicalTrials.gov
For further information on a study, please contact the Clinical Investigation Support Office at (323) 865-0451, or
To schedule a consultation with the hospital, please call our New Patient Referrals Office at (323) 865-3111.