About Us

Leadership Team


Joshua H. Bilenker, M.D.
Joshua H. Bilenker, M.D.
Chief Executive Officer

Dr. Joshua H. Bilenker, M.D., founder of Loxo Oncology, serves as President and Chief Executive Officer, and sits on the board of directors.

Previously, Dr. Bilenker was a Partner at Aisling Capital, a multi-strategy healthcare investment firm based in NY, where he remains an Operating Partner.

From 2004-2006, Dr. Bilenker was a Medical Officer at the U.S. FDA in the Office of Oncology.

Dr. Bilenker trained at the University of Pennsylvania in internal medicine and medical oncology, earning board certification in these specialties. He received his M.D. from The Johns Hopkins School of Medicine and his A.B. degree from Princeton University.

Jacob S. Van Naarden
Jacob S. Van Naarden
Chief Operating Officer

Jacob S. Van Naarden serves as Chief Operating Officer. In his previous roles, Mr. Van Naarden served in various biotechnology investing, operating, and advisory capacities.

Previously, Mr. Van Naarden served as a public equity biotechnology analyst at HealthCor Management, a multi-billion-dollar healthcare-dedicated investment firm based in NYC. Prior to HealthCor, Mr. Van Naarden was an Associate at Aisling Capital, a multi-strategy healthcare investment firm based in NY. Mr. Van Naarden started his career in the Healthcare Group of the Investment Banking Division at Goldman Sachs.

Mr. Van Naarden received his A.B. degree in molecular biology from Princeton University, graduating magna cum laude and Phi Beta Kappa.

Nisha Nanda, Ph.D.
Nisha Nanda, Ph.D.
Chief Development Officer

Dr. Nanda serves as Chief Development Officer. Dr. Nanda has had increasing roles of responsibility in both clinical and pre-clinical development. Most recently Dr. Nanda worked on the clinical development of carfilzomib (Kyprolis) and the approval of omacetaxine (Synribo).

Dr. Nanda’s career in drug development has included roles at Onyx, ChemGenex, Portola, Millennium and Cor.

Dr. Nanda has a BSc Hons in Biochemistry and Molecular Genetics from UNSW, Sydney, Australia and a Ph.D. in Biochemistry and Molecular Genetics from UNSW and the Victor Chang Cardiac Research Institute, Sydney, Australia.

Sara Slifka
Sara Slifka
VP, Business Operations & Program Management

Sara Slifka serves as Vice President of Business Operations and Program Management. Previously, Ms. Slifka was a Vice President in Equity Research at Morgan Stanley covering the biotech sector.

In her prior role, Ms. Slifka analyzed small- and large-cap biotechnology companies from a financial, clinical, regulatory and commercial perspective.

Ms. Slifka received her A.B. degree from Princeton University.

Michael Rothenberg, M.D., Ph.D.
Michael Rothenberg, M.D., Ph.D.
VP, Research and Development

Dr. S. Michael Rothenberg, M.D., Ph.D., serves as Vice President of Research and Development.

Previously, Dr. Rothenberg was a medical oncologist and cancer researcher at Massachusetts General Hospital.

Dr. Rothenberg trained at Massachusetts General Hospital in internal medicine and at the Massachusetts General Hospital Cancer Center and the Dana Farber Cancer Institute in medical oncology, earning board certification in these specialties. He received his M.D. and Ph.D. degrees from the Stanford University School of Medicine, and his B.A. degree in Chemistry from Yale University.

Christopher Pierce, MBA
Christopher Pierce, MBA
VP, Commercial

Christopher Pierce, MBA, serves as Vice President of Commercial.

Previously, Mr. Pierce worked at Pfizer Oncology from 2007 to 2017 in roles of increasing commercial responsibility, including the launch or in-line management of various oncology therapeutics such as Xalkori (crizotinib), Sutent (sunitinib), Inlyta (axitinib), Bosulif (bosutinib), Mylotarg, (gemtuzumab ozogamicin), and Besponsa (inotuzumab ozogamicin).

From 2004 to 2006, Mr. Pierce worked at Millennium Pharmaceuticals managing market analytics for Velcade (bortezomib). Before Millennium, Mr. Pierce was a management strategy consultant at L.E.K. Consulting within its life sciences practice.

Mr. Pierce received his A.B. degree in biochemical sciences from Harvard College, graduating magna cum laude. He received his MBA from the Harvard Business School with high distinction, where he was named a George F. Baker Scholar.

Sunitha Ramamurthy, Esq.
Sunitha Ramamurthy, Esq.
Head of Compliance

Sunitha Ramamurthy serves as Head of Compliance, which includes oversight of privacy matters.

Previously, as Executive Director at Boehringer Ingelheim Pharmaceuticals Inc., Ms. Ramamurthy oversaw the Office of Ethics & Compliance in the U.S., which included healthcare, Anti-Bribery and Anti-Corruption and Transparency & Disclosure compliance areas.

Ms. Ramamurthy also worked at Eisai Inc., as Senior Director, Commercial Compliance and as a litigator for ten years representing healthcare clients.

Ms. Ramamurthy earned a B.S. from S.I. Newhouse School of Public Communications, Syracuse University, and graduated cum laude from Seton Hall School of Law with a J.D. in 1996. She is admitted to practice in New York and New Jersey.

Nora Ku, M.D.
Nora Ku, M.D.
Executive Medical Director

Dr. Nora Ku, M.D., serves as Executive Medical Director for Loxo Oncology.

Her career in academic and community practice included active involvement in clinical research as a clinical investigator. Prior to joining Loxo Oncology Dr. Ku worked with a specialty consulting group supporting projects facilitating drug development by large and small pharmaceutical company clients.

Dr. Ku is a graduate of the UCLA School of Medicine. She completed her residency in Internal Medicine at UT Southwestern Medical Center and returned to UCLA to complete a combined fellowship in Hematology and Oncology. She is board certified in Internal Medicine and Medical Oncology.

Katie Cairati
Katie Cairati
Head of Regulatory Affairs

Katie Cairati serves as Head of Regulatory Affairs. Ms. Cairati’s career spans many aspects of drug development including regulatory affairs, clinical development, data management and manufacturing.

Previously Ms. Cairati has held increasing roles of responsibility at Genentech, Pharmacyclics and ChemGenex in addition to establishing her own consulting firm, Cairati Consulting Inc.

Ms. Cairati received her M.S. degree from University of California, Davis.

Michael Cox, Pharm.D.
Michael Cox, Pharm.D.
Senior Director, Pediatrics Clinical Development

Dr. Michael Cox, Pharm.D., serves as Senior Director, Pediatrics Clinical Development. Dr. Cox has been involved in the product launches and life cycle management of numerous oncology products including radium-223 (Xofigo®), regorafenib (Stivarga®), sorafenib (Nexavar®) cetuximab (ERBITUX®), denosumab (XGEVA®) and darbepoetin alfa (Aranesp®).

Dr. Cox joined Loxo Oncology from Bayer Consumer Care AG, Basel, Switzerland where he served as Medical Affairs Early Pipeline Lead, Oncology for Region Europe/Canada and Emerging Markets. Prior to Bayer, he held global medical affairs positions at Merck KGaA, Darmstadt, Germany and Amgen, Inc., Thousand Oaks, California.

Dr. Cox received his Pharm.D. from Ohio Northern University and a MHSc in Clinical Research from Duke University’s School of Medicine. Dr. Cox completed pharmacy practice residencies at Mission Hospitals in Asheville, North Carolina and the University of Pittsburgh Cancer Institute – University of Pittsburgh Medical Cancer, Pittsburgh, Pennsylvania. He completed a medical oncology/clinical drug development fellowship in the Clinical Pharmacology Section, Center for Cancer Research at the National Cancer Institute, Bethesda, Maryland. He is a Board Certified Oncology Pharmacist.