ValiRx plc, a biopharmaceutical company, engages in the development of oncology therapeutics and companion diagnostics in the United Kingdom. The company's lead drug candidates include VAL201, a small molecule that has completed Phase I/II trials for the treatment of prostate cancer and other hormone associated solid tumours comprising breast and ovarian cancer; and VAL401, a reformulation of anti-psychotic drug risperidone, which has completed Phase II clinical trial for the treatment of non-small cell lung cancer. Its drug candidates also comprise VAL301, a peptide ingredient that in pre-clinical development for the treatment of women with endometriosis; and BC201, a combination of the peptide ingredient of VAL201/VAL301 with complementary active components for the treatment for patients suffering severe symptoms of Covid-19. ValiRx plc was incorporated in 2000 and is based in Hatfield, the United Kingdom.