Moleculin Biotech, Inc. is a late-stage pharmaceutical development company focused on therapeutic candidates for tumors and viruses. Its lead candidate, Annamycin, is an anthracycline in clinical development for relapsed or refractory acute myeloid leukemia and soft tissue sarcoma lung metastases. The company is also developing the WP1066 portfolio, including WP1066, WP1193, and WP1220, which are immune/transcription modulators designed to inhibit phosphorylated signal transducer and activator of transcription for brain tumors and pancreatic and other cancers. Additionally, it is developing the WP1122 portfolio, such as WP1122, WP1096, and WP1097, designed to exploit inhibitors of glycolysis including 2-deoxy-D-glucose to cut off the energy supply of tumors. Incorporated in 2015, the company is headquartered in Houston, Texas.