Pyxis Oncology (PYXS) Earnings Call Presentation

PYX-201 Mechanism and Target - PYX-201 is a first-in-concept extracellular-cleaving ADC targeting EDB+FN, a non-cellular component of the tumor extracellular matrix [6, 7] - EDB+FN is highly overexpressed in various solid tumors, releasing the payload extracellularly for direct tumor killing, bystander effect, and immunogenic cell death [10, 11] - PYX-201's unique mechanism of action (MOA) may address a primary cause of drug resistance by altering the ECM [16] Clinical Trial and Tolerability - Phase 1 dose escalation study included 80 patients with 10 solid tumor types [29] - PYX-201 demonstrated a favorable tolerability profile with a low treatment discontinuation rate of 1% [6, 39] - The identified dose range for further evaluation is 3.6 - 5.4 mg/kg [6, 34] Efficacy and Responses - An overall response rate (ORR) of 26% was observed in 6 responding tumor types (n=31) at the identified dose range of 3.6-5.4 mg/kg [6, 43] - In HNSCC patients within the 3.6 – 5.4 mg/kg dose range, a 50% ORR and 100% disease control rate (DCR) were observed [6, 54] - Median time on study in Phase 1 Part 1 was approximately 12 weeks [50, 51] Future Development and Catalysts - A clinical trial collaboration will evaluate PYX-201 in combination with KEYTRUDA® (pembrolizumab) [18] - Multiple clinical catalysts are expected in the next 6-18 months, including readouts from HNSCC monotherapy and early line combination studies [6, 65] - As of Q3 2024, the company has $146 million in cash, providing runway into 2H 2026 [87]