OncoQuest Pharmaceuticals Inc. announced the first patient enrolled in each of two investigator initiated clinical trials assessing the safety and efficacy of oregovomab in a previously treated recurrent ovarian cancer setting. The first study, led byProf. Jung KH, is being conducted at three centres in Korea (Korea Anam Hospital, Seoul St. Mary's Hospital and Seoul Asan Hospital). This is a Phase 1b/2 clinical trial evaluation of the safety and efficacy of oregovomab when used in combination with bevacizumab, paclitaxel, and carboplatin in subjects with platinum sensitive recurrent ovarian cancer. Oregovomab has previously been established to augment the activity of carboplatin and paclitaxel through immune stimulation, and bevacizumab augments the activity of carboplatin and paclitaxel by inhibiting angiogenesis. The study will establish the safety and compatibility of the combination of these agents as possible approaches in patient management(ClinicalTrials.gov Identifier: NCT04938583). This study is supported by Korean Government's K-Master program (KM-21) under the guidance of Prof.KimYHatthe Korea University Anam Hospital and Professor Park KH at Korea University College of Medicine. The second study (ORION-02), led by Clinical Assistant Professor Jack Chan, is being conducted at a single centre in Singapore (National Cancer Centre Singapore). This is a Phase 1/2 clinical trial evaluation of the safety and efficacy of platinum-based chemotherapy, oregovomab and the PD-1 blockade agent, nivolumab, in subjects with platinum sensitive recurrent epithelial cancer of ovarian, tubal, or peritoneal origin (ClinicalTrials.gov Identifier: NCT04620954). The safety of oregovomab in combination with nivolumab has already been established in the ORION-01 study (ClinicalTrials.gov Identifier: NCT03100006). OncoQuest has completed a Phase II study using oregovomab in combination with a TLR-3 agonist (Hiltonol®) in the recurrent ovarian cancer setting (ClinicalTrials.gov Identifier: NCT03162562). Oregovomab is currently being tested in a global Phase III study in 12 countries in combination with carboplatin and paclitaxel chemotherapy in the front-line ovarian cancer setting (ClinicalTrials.gov Identifier: NCT04498117).