Peak Bio Co., Ltd. is a clinical-stage biopharmaceutical company focused on developing therapeutics addressing significant unmet needs in the areas of oncology and inflammation. Peak Bio’s management team has a combined 50 years of industry experience in the areas of small molecules, antibodies, and antibody-drug-conjugates (ADC), forging successful companies that create differentiated cancer and immunological based therapeutics. Peak Bio’s lead product candidate, PHP-303, is a 5th generation, small molecule, neutrophil elastase inhibitor currently awaiting initiation of a Phase II clinical study in the genetic orphan disease called Alpha1 anti-trypsin deficiency disorder (AATD). Interim Phase 2 clinical trial results are expected by the end of 2023. Peak Bio has successfully completed two Phase 1 clinical studies in human subjects: a single ascending dose trial (SAD) and a multiple ascending dose trial (MAD). The SAD and MAD PHP-303 clinical studies demonstrated a favorable safety profile and a dose was established for Peak Bio’s upcoming clinical trials. Peak Bio’s cancer platform consists of novel payloads/toxins in conjunction with a developing antibody-drug-conjugates (ADC) pipeline to address a growing unmet need in cancer care. Peak Bio’s current ADC approach unites conventional and direct targeting of cancer cells with toxins while also engaging the immune system. The Peak Bio payload stimulates the immune system which in turn cooperates with cancer cell killing and leaves behind immune memory cells. In addition, the potential for immune reengagement when the cancer reoccurs could be an exciting and important advancement in cancer care with this dual mechanistic approach to cancer therapeutics. Peak Bio’s lead payload appears to be a poor substrate for multi-drug resistance (MDR) transporters which is a growing concern in the ADC field.