Halozyme prevails in patent fight with Merck; Enliven readies anticipated leukemia trial
A Netherlands court blocked sales of Merck's subcutaneous Keytruda Qlex in eight European countries, siding with Halozyme in a patent dispute over its under-the-skin drug delivery technology. Separately, Enliven Therapeutics reached agreement with the FDA on a late-stage trial of relcobitinib in chronic myeloid leukemia, enrolling 450 people to test superiority at spurring a major molecular response. Halozyme is also challenging Merck in a U.S. court after a win in Germany.
Why it matters: Patent ruling blocks subcutaneous Keytruda across Europe and FDA-aligned CML trial design sharpens competition for Novartis and Merck.