Sentence: Phase I Clinical Trial of Combination Propranolol and Pembrolizumab in Locally Advanced and Metastatic Melanoma : Safety , Tolerability , and Preliminary Evidence of Antitumor Activity .
Drug combination annotation:
[{'class': 'POS', 'spans': ['Propranolol', 'Pembrolizumab'], 'is_context_needed': True}]