Leap Therapeutics was founded on the principle that investing in great science and targeted research will rapidly translate molecules into high impact therapeutics.

Our pipeline is built upon identifying, acquiring, and developing translational-stage molecules in the areas of cell signaling and immuno-oncology. Led by a proven management team, Leap Therapeutics is dedicated to building and developing a pipeline of therapeutics that has the potential to change the practice of cancer medicine.

Management

Chris Mirabelli, Ph.D.

Chief Executive Officer

Dr. Mirabelli has served as the Chairman of our Board of Directors since 2016 and has also served as our President and Chief Executive Officer since our inception in 2011. Dr. Mirabelli has been a managing director of HealthCare Ventures LLC since 2000. From December 1999 to May 2000, Dr. Mirabelli served as president of pharmaceutical research and development and member of the board of directors of Millennium Pharmaceuticals, Inc., following its merger with LeukoSite Inc., where Dr. Mirabelli had been serving as president, chief executive officer and chairman of the board of directors since 1993. He was a co-founder of Ionis Pharmaceuticals, Inc. (NASDAQ: IONS), where he held several positions including senior vice president of research, from 1989 until 1993. Dr. Mirabelli started his career at SmithKline and French Laboratories (now part of GlaxoSmithKline Plc) R&D Division. He is a member of the board of advisors of the Blavatnik Biomedical Accelerator Fund at Harvard Medical School and the Boston Biomedical Innovation Center. Dr. Mirabelli is a member of the Board of Trustees of Guilford College. He received his Ph.D. in molecular pharmacology from Baylor College of Medicine and a B.S. degree in biology from State University of New York at Fredonia. 

Gus Lawlor

Chief Operating Officer

Mr. Lawlor has served as our Chief Operating Officer since 2015. Mr. Lawlor has been a managing director of HealthCare Ventures LLC since 2000, including serving as the chief executive officer of GITR, Inc. prior to its merger into Leap. Prior to joining HealthCare Ventures, Mr. Lawlor served as Chief Operating Officer of LeukoSite Inc., a biotechnology company, from 1997 to 1999. Before joining LeukoSite, Mr. Lawlor served as Chief Financial Officer and Vice President of Corporate Development of Alpha-Beta Technology, Inc., a biotechnology company. He was also previously Chief Financial Officer and Vice President, Business Development, of BioSurface Technologies Corporation, a biofilm company. Mr. Lawlor serves on the Board of Directors of Cardiovascular Systems, Inc. and Catalyst Biosciences, Inc., each a publicly-traded biopharmaceutical company, and a number of private companies. He received a B.A. from the University of New Hampshire and a master's degree in management from Yale University.

Doug Onsi

Chief Financial Officer

Mr. Onsi has served as our Chief Financial Officer, Treasurer and Secretary since our inception in 2011. Mr. Onsi has been at HealthCare Ventures since 2007, including serving as a managing director since 2009 and the chief executive officer of Tensha Therapeutics, Inc. which was sold to Roche Holdings, Inc. in 2016. Prior to joining HealthCare Ventures, Mr. Onsi was at Genzyme Corporation, or Genzyme, where he served in roles as Vice President, Campath Product Operations and Portfolio Management, Oncology from 2005 to 2007 and as Vice President, Business Development from 2004 to 2005. Prior to Genzyme, he was Chief Financial Officer of Tolerx, Inc., a venture capital funded biotechnology company, from 2001 to 2004. Before joining Tolerx, Inc., he was in business development at LeukoSite, a publicly traded biopharmaceutical company that was acquired by Millennium Pharmaceuticals, Inc. He began his career as an attorney at Bingham Dana LLP. Mr. Onsi currently serves as a member of the board of directors of Vaxxas Pty Ltd., a privately-held biotechnology company. He received a Juris Doctor degree from the University of Michigan Law School and a B.S. in biological sciences from Cornell University.

Board of Directors

Chris Mirabelli, Ph.D.

Chairman of the Board, CEO of Leap Therapeutics

Dr. Mirabelli has served as the Chairman of our Board of Directors since 2016 and has also served as our President and Chief Executive Officer since our inception in 2011. Dr. Mirabelli has been a managing director of HealthCare Ventures LLC since 2000. From December 1999 to May 2000, Dr. Mirabelli served as president of pharmaceutical research and development and member of the board of directors of Millennium Pharmaceuticals, Inc., following its merger with LeukoSite Inc., where Dr. Mirabelli had been serving as president, chief executive officer and chairman of the board of directors since 1993. He was a co-founder of Ionis Pharmaceuticals, Inc. (NASDAQ: IONS), where he held several positions including senior vice president of research, from 1989 until 1993. Dr. Mirabelli started his career at SmithKline and French Laboratories (now part of GlaxoSmithKline Plc) R&D Division. He is a member of the board of advisors of the Blavatnik Biomedical Accelerator Fund at Harvard Medical School and the Boston Biomedical Innovation Center. Dr. Mirabelli is a member of the Board of Trustees of Guilford College. He received his Ph.D. in molecular pharmacology from Baylor College of Medicine and a B.S. degree in biology from State University of New York at Fredonia. 

James Cavanaugh, Ph.D.

Managing Director at HealthCare Ventures

Dr. Cavanaugh has been a managing director of HealthCare Ventures since 1989. He was previously President of SmithKline & French Laboratories-U.S., the domestic pharmaceutical division of SmithKline Beckman Corporation. Dr. Cavanaugh had been president of SmithKline Beckman's clinical laboratory business and President of Allergan International. He has been a board member of a number of private and public pharmaceutical and biotechnology companies and was Chairman of The Shire Pharmaceutical Group, plc. He served as staff assistant to President Nixon for Health Affairs and then deputy director of the president's Domestic Council. Under President Ford, he was a deputy assistant to the President for domestic affairs and deputy chief of the White House. He has served as deputy assistant secretary for health and scientific affairs in the United States Department of Health, Education and Welfare, special assistant to the Surgeon General, United States Public Health Services, and director, Office of Comprehensive Health Planning. He began his career as a member of the faculty of the Graduate College and the College of Medicine at the University of Iowa where he received his Master's and Doctorate degrees.

John Littlechild

Managing Director at HealthCare Ventures

Mr. Littlechild has been a managing director of HealthCare Ventures since 1992. He has been in the venture capital industry since 1980 when he joined Citicorp Venture Capital in London. He subsequently joined the Advent Group, opening the London office of Advent U.K. and becoming an early general partner of Advent International in Boston. Prior to his career in venture capital, he held marketing and financial management positions with Rank Xerox and ICI. Mr. Littlechild holds a B.Sc in Engineering from the University of Manchester and an MBA from Manchester Business School.

Thomas Dietz, Ph.D

Chairman and CEO of Waypoint Holdings

Dr. Dietz is currently chairman and CEO of Waypoint Holdings, LLC, a diversified financial-holdings and services company. Previously, Dr. Dietz was co-CEO and then CEO and a director of Pacific Growth Equities, LLC, a San Francisco-based investment bank and institutional brokerage firm from 2004 to 2009, when the firm was acquired by Wedbush Securities. Dr. Dietz served as head of the investment banking division at Wedbush until November 2010. Prior to taking the CEO role at Pacific Growth, Dr. Dietz served as the company's director of equities research and was an award-winning biotechnology and biopharmaceutical analyst. He joined Pacific Growth in 1993. Previously, he was a member of the research faculty in the Department of Medicine, University of California, San Francisco and the VA Medical Center. Dr. Dietz is currently Chairman of Eiger Biopharmaceuticals, Inc. (EIGR:Nasdaq) and privately held AgBiome, LLC. He also serves as a director of Paratek Pharmaceuticals (PRTK:Nasdaq) and several other private companies. Dr. Dietz holds a Ph.D. in molecular biology and biochemistry from Washington University, St. Louis, and was a National Science Foundation Post-Doctoral Fellow. 

Joseph Loscalzo, M.D., Ph.D, M.A.

Chairman, Department of Medicine, Physician-in-Chief, Brigham and Women’s Hospitals

Dr. Joseph Loscalzo is currently is Hersey Professor of the Theory and Practice of Medicine at Harvard Medical School, Chairman of the Department of Medicine, and Physician-in-Chief at Brigham and Women's Hospital. In 1994, Dr. Loscalso joined the faculty of Boston University in 1994, first as Chief of Cardiology and, in 1997, Wade Professor and Chair of Medicine, Professor of Biochemistry, and Director of the Whitaker Cardiovascular Institute. In 2005, he returned to work at Harvard and Brigham and Women's Hospital, where he had previously worked. He has served on several NIH study sections and editorial boards, and has chaired the Gordon Conference on Thrombolysis. He served as an associate editor of the New England Journal of Medicine for nine years, Chair of the Cardiovascular Board of the American Board of Internal Medicine, Chair of the Research Committee of the American Heart Association, Chair of the Scientific Board of the Stanley J. Sarnoff Society of Fellows for Research in the Cardiovascular Sciences, and Chair of the Board of Scientific Counselors of the National Heart, Lung, and Blood Institute of the National Institutes of Health. He is currently Editor-in-Chief of Circulation, a senior editor of Harrison's Principles of Internal Medicine, a member of the Advisory Council of the National Heart, Lung, and Blood Institute, and a member of the Council of Councils of the National Institutes of Health. Dr. Loscalzo has been a visiting professor at many institutions, holds two honorary degrees, has authored or co-authored more than 500 scientific publications, has authored or edited 23 books, and holds 27 patents for his work in the field of nitric oxide. He is also the recipient of many grants from the NIH and industry for his work in the areas of vascular biology, thrombosis, and atherosclerosis over the past twenty-five years and has won numerous awards. Dr. Loscalzo received his A.B. degree, summa cum laude, his Ph.D. in biochemistry, and his M.D. from the University of Pennsylvania and completed his clinical training at Brigham and Women's Hospital and Harvard Medical School, where he served as Resident and Chief Resident in medicine and Fellow in cardiovascular medicine. Dr. Loscalzo is currently a consultant for both Boston Consulting Group and Momenta Pharmaceuticals, Inc., is a scientific advisory board member at Broadview Ventures, Inc., Sanofi S.A., DZZOM—The Network Medicine Company and Applied Biomath, LLC, and is a member of the board of directors of Ionis Pharmaceuticals Inc.

William Li, M.D.

CEO and President of Angiogenesis Foundation

In December 2003, Dr. Li joined the DOBI Medical Systems board of directors and was also a member of DOBI Medical System's Scientific Advisory Board. Dr. Li is a co-founder of the Angiogenesis Foundation in Cambridge, Massachusetts, of which he has been the President since April 2000 and Medical Director since December 1994. Dr. Li has extensive expertise in the field of angiogenesis and its therapeutic development and clinical applications. He trained with Dr. Judah Folkman, who pioneered the field of angiogenesis research. Through the Angiogenesis Foundation, Dr. Li has worked in association with the National Institutes of Health, and other major governmental and academic institutions, and industry leaders on angiogenesis-related programs. Dr. Li received his M.D. degree from University of Pittsburgh School of Medicine. He completed his clinical training in internal medicine at the Massachusetts General Hospital in Boston. Dr. Li has also served on the faculties of Harvard Medical School, Tufts University School of Veterinary Medicine and Dartmouth Medical School.

Nissim Mashiach

CEO and President of Macrocure

Nissim served as the President and Chief Executive Officer of Macrocure, Ltd. since June 2012. He is also currently a member of the board of directors at Chemomab Ltd. He also previously served as General Manager at Ethicon, a Johnson & Johnson company, from 2009 to 2012. Prior to then, he served as President and Chief Operating Officer at Omrix Biopharmaceuticals, Inc., a public company acquired by Johnson & Johnson in 2008. Prior to Omrix, Mr. Mashiach held leadership positions at several pharmaceutical companies. He holds an MBA from the University of Manchester, England, an MPharmSc from the Hebrew University, Jerusalem, Israel, and a BSc, Chemical Engineering from the Technion-Israel Institute of Technology, Haifa, Israel.

Scientific Advisory Board

Christopher T. Walsh, MD, PhD

Chair of Leap SAB, Hamilton Kuhn professor of biological chemistry and pharmacology at Harvard Medical School

Since July 2014, he has been a consulting professor of chemistry at Stanford University. From 1987 to July 2014, he was a professor of biological chemistry and molecular pharmacology at Harvard Medical School. He has been on a number of advisory boards, including the Whitehead Institute, The Scripps Research Institute, California Institute for Biomedical Research and the science review board of the Howard Hughes Medical Institute. Dr. Walsh holds a Ph.D. in life science from Rockefeller University and an A.B. degree in biology from Harvard University.

Carl F. Nathan, MD

Professor and Chairman of Department of Microbiology and Immunology at Weill Cornell Medical College

Carl Nathan, M.D., is R.A. Rees Pritchett Professor and chairman of the Department of Microbiology and Immunology at Weill Cornell Medical College and co-chair of the Program in Immunology and Microbial Pathogenesis at Weill Graduate School of Medical Sciences of Cornell University. A graduate of Harvard College and Harvard Medical School, he trained in internal medicine and oncology at Massachusetts General Hospital, the National Cancer Institute, and Yale before joining the faculty of The Rockefeller University. At Weill Cornell Medical College, he has served as founding director of the Tri-Institutional MD-PhD Program, senior associate dean for research, and acting dean and presently directs the Milstein Program in Chemical Biology of Infectious Disease.A member of the Institute of Medicine of the National Academy of Sciences, a Fellow of the American Academy of Microbiology, a former Ellison Medical Foundation senior scholar in global infectious diseases and a Trustee of the Hospital for Special Surgery, he also serves as an advisor to the Cambridge University Institute for Medical Research, associate scientific director of the Cancer Research Institute and an editor of the Journal of Experimental Medicine.

David Tuveson, MD, PhD

Director of Research, the Lustgarten Foundation, Roy J. Zuckerberg Professor of Cancer Research at Cold Spring Harbor Laboratory

David Tuveson is professor and deputy director of the cancer center at Cold Spring Harbor Laboratory. Dr. Tuveson obtained a bachelor’s degree in chemistry at M.I.T. and medical and doctoral degrees at Johns Hopkins. Dr. Tuveson was a medical resident at Brigham and Women’s Hospital and a medical oncology fellow at Dana-Farber/Partners Cancer Care. During his postdoctoral years in Boston, Dr. Tuveson co-developed KIT inhibitors for gastrointestinal stromal tumors with George Demetri, and created several Kras dependent mouse cancer models with Tyler Jacks. His lab generated the first mouse models of ductal pancreatic cancer at the University of Pennsylvania, and subsequently moved to the University of Cambridge to develop preclinical and clinical therapeutic strategies for pancreatic cancer. In Cambridge, his lab identified a variety of parameters that limit therapeutic efficacy in pancreatic cancer, including poor drug delivery and survival factors in the microenvironment. These findings are currently undergoing clinical evaluation. Dr. Tuveson now directs the Cancer Therapeutics Initiative at Cold Spring Harbor Laboratory and to serve as director of research for the Lustgarten Foundation. He will continue to practice medical oncology with an adjunct appointment at Memorial Sloan-Kettering Cancer Center. His honors include an award from the Rita Allen Foundation.

Eric P. Winer, MD

Senior Vice President and Chief Clinical Strategy Officer; Chief, Division of Women's Cancers, Dana Farber Cancer Institute; Director, Breast Oncology Program, Susan F. Smith Center for Women's Cancers; Thompson Chair in Breast Cancer Research Institute Physician; Professor of Medicine, Harvard Medical School

Dr. Winer received his MD from Yale University in 1983, and later completed training in internal medicine and served as chief resident at Yale-New Haven Hospital. He subsequently was a fellow in hematology-oncology at Duke University Medical Center, and from 1989 to 1997 served on the Duke faculty, where he became codirector of the multidisciplinary breast program. In 1997, he joined Brigham and Women's Hospital and DFCI, where he is director of the Breast Oncology Center. Winer is the principal investigator of the Dana-Farber/Harvard Cancer Center NCI SPORE (National Cancer Institute Specialized Program of Research Excellence) in breast cancer. His research group focuses on improving care and quality of life for breast cancer patients through new drug treatments developed in clinical trials. He also co-chairs the Breast Committee in the Alliance for Clinical Trials in Oncology, a national clinical trials network.

Xi He, PhD

Endowed Research Chair, Professor of Neurology, American Cancer Society Research Professor, Boston Children’s Hospital and Harvard Medical School

Xi He received his PhD in 1992 from the University of California, San Diego, where he worked in the laboratory of Michael G. Rosenfeld. He completed a postdoctoral fellowship in 1996 at the National Institutes of Health, under the supervision of Harold E. Varmus. He was a Pew Scholar in Biomedical Sciences, a Klingenstein Fellow in Neuroscience, a Keck Foundation Distinguished Young Scholar in Medical Research and a Leukemia and Lymphoma Society Scholar. He is a Chang Jiang Guest Professor at the School of Life Science and Technology, Huazhong University of Science and Technology in Wuhan, China, inducted by the Ministry of Education of China. Xi He is a member of the executive board of the Stem Cell Program at Boston Children's Hospital and a member of the editorial boards of Journal of Biological Chemistry, Journal of Genetics and Genomics and Protein & Cell. He has served and is serving on the Scientific Advisory Boards of institutes of the Chinese Academy of Sciences and of biotechnology companies in the United States, China and Europe.