CannTrust Holdings Inc. announced the appointment of Dr. Len Walt, M.D., MBA, to the newly created position of Chief Medical Officer. Dr. Walt will lead the global medical function dedicated to strengthening company's clinical research strategy, medical education programs, product innovation and support the expansion of CannTrust's global medical businesses and partnerships. Most recently Dr. Walt held the position of Vice President and Head of Medical Affairs at Sobi Inc., where he led their North American medical and scientific operations.