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 Business Officer

Jacob S. Van Naarden serves as Chief Business 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.

Jennifer Burstein, C.P.A.
Jennifer Burstein, C.P.A.
Senior VP, Finance

Jennifer Burstein, C.P.A., serves as Senior Vice President of Finance.

Prior to Loxo Oncology, Ms. Burstein served as Vice President of Finance at Acorda Therapeutics, Inc., a public biotechnology company, from July 2010 until April 2015, where she held several positions of increasing responsibility in Finance from 2006 until being appointed Vice President of Finance.

Prior to joining Acorda, from 2002 to 2006, she was with Eyetech Pharmaceuticals, Inc., a public biotechnology company, which is currently a subsidiary of Valeant Pharmaceuticals International, Inc., where she held several positions of increasing responsibility in Finance until being promoted to Senior Director, Accounting. Before Eyetech, Ms. Burstein worked in the Finance departments at several companies and in public accounting.

Ms. Burstein received her B.S. in Business Administration and MBA in Accounting from the State University of New York at Buffalo and has a C.P.A. license in New York.

Nisha Nanda, Ph.D.
Nisha Nanda, Ph.D.
Senior VP, Development Strategy

Dr. Nanda serves as Senior Vice President of Development Strategy. 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.

Jennifer L. Kronick
Jennifer L. Kronick
VP, Human Resources

Jennifer L. Kronick serves as Vice President, Human Resources.

Previously, Ms. Kronick was Senior Assistant General Counsel at Purdue Pharma L.P., where her work included an international assignment in Basel, Switzerland supporting emerging markets. Previously, she worked as a labor and employment law associate at Morgan Lewis in New York and as a Trial Preparation Assistant in the New York County District Attorney’s Office Sex Crimes Prosecution Unit.

Ms. Kronick received her B.A. degree with college honors from Washington University in St. Louis and her law degree from Columbia Law School, where she was a Harlan Fiske Stone Scholar. She is admitted to practice in Connecticut and New York.

Deborah Morosini, M.D., M.S.W.
Deborah Morosini, M.D., M.S.W.
VP, Clinical Affairs and Patient Engagement

Dr. Deborah Morosini, M.D., M.S.W., serves as Vice President of Clinical Affairs and Patient Engagement.

Previously, Dr. Morosini was a VP at Foundation Medicine, a cancer genomics and molecular information company in Cambridge, MA. From 2007-2012, Dr. Morosini led the molecular pathology group at AstraZeneca Pharmaceuticals.

She is a seasoned patient advocate, serving on multiple national non-profit boards.

Dr. Morosini trained at Boston University School of Medicine in anatomic and clinical pathology, where she served as chief resident. She received her M.D. from Boston University School of Medicine, her Masters in Social Work from New York University and her B.A. in English from Mount Holyoke College.

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
Executive Director, Regulatory Affairs

Katie Cairati serves as Executive Director, Global 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, Clinical Development and Medical Affairs

Dr. Michael Cox, Pharm.D., serves as Senior Director, Clinical Development and Medical Affairs. 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.

Brian Tuch, Ph.D.
Brian Tuch, Ph.D.
Senior Director, Translational Medicine

Dr. Brian Tuch serves as Senior Director of Translational Medicine, leading preclinical biomarker research and clinical diagnostic assay development.

Dr. Tuch has previously contributed to the discovery and development of drugs and diagnostic technologies at companies including Onyx, Amgen and Life Technologies. At Onyx and Amgen, he built groups applying advanced genomic technologies, such as next generation sequencing (NGS), towards the discovery of biomarkers and drug targets.

Dr. Tuch received a Ph.D. in Bioinformatics from University of California San Francisco, where he combined novel bench and computational methods to understand basic principles of gene regulation and their relevance to human disease. Dr. Tuch received an ScB in Computational Biology with Honors from Brown University.