Additional Relevant Details  Halozyme Therapeutics, Inc. (NASDAQ: HALO) today announced that it has resumed the enrollment and dosing of patients in its ongoing Phase 1b trial evaluating its investigational new drug, PEGPH20, in combination with KEYTRUDA (pembrolizumab) in patients with advanced non-small cell lung and gastric cancers under a revised clinical protocol. The revised protocol has been submitted to all institutional review boards (IRB) and is pending feedback from the FDA. The majority of IRBs have completed their review and approved the revised protocol allowing the study to resume.