SELLAS Life Sciences Reports First Quarter 2025 Financial Results and Provides Corporate Update

Core Insights - SELLAS Life Sciences Group, Inc. announced positive overall survival data from the ongoing Phase 2 trial of SLS009 in relapsed/refractory acute myeloid leukemia (AML), demonstrating a median overall survival (mOS) of 8.9 months in AML-Myelodysplasia-Related Changes (AML-MRC) and 8.8 months in all relapsed or refractory patients, significantly exceeding historical benchmarks [1][3][6] - The company reported a cash position of approximately $28.4 million as of March 31, 2025, with an additional $4.0 million received from warrant exercises in April 2025 [1][12] Clinical Developments - The Phase 2 trial of SLS009 showed a 67% overall response rate (ORR) in patients with AML-MRC and 46% in all evaluable patients, surpassing the targeted 20% ORR [3] - Preclinical data presented at the 2025 AACR Conference indicated that SLS009 can induce apoptosis in TP53 mutated AML by targeting proteins like MCL-1 and survivin, achieving up to 97% reduction in TP53-mutated leukemia cell populations [4] - Promising preclinical efficacy of SLS009 in ASXL1 mutated colorectal cancer will be showcased at ASCO 2025 [5] Financial Performance - Research and development expenses for Q1 2025 were $3.2 million, down from $5.1 million in Q1 2024, primarily due to reduced clinical trial expenses [10] - General and administrative expenses decreased to $2.9 million in Q1 2025 from $4.5 million in Q1 2024, attributed to lower personnel-related expenses and professional fees [11] - The net loss for Q1 2025 was $5.8 million, or $0.07 per share, compared to a net loss of $9.6 million, or $0.21 per share, in Q1 2024 [12][17] Corporate Updates - The interim analysis of the Phase 3 REGAL trial of Galinpepimut-S (GPS) in AML indicated preliminary signals of effectiveness, with fewer than 50% of enrolled patients confirmed deceased after a median follow-up of 13.5 months [6] - A Phase 2a trial of SLS009 in combination with zanubrutinib in DLBCL showed an ORR of 67%, with one complete response and three partial responses among responders [7] - The company raised $25 million from a registered direct offering to strengthen its financial position for working capital and potential acquisitions [9]