LONDON – Mestag Therapeutics Ltd. has closed a hefty $45 million seed round to advance development of antibodies targeting activated fibroblasts, in the treatment of cancer and immune diseases.

After a long and tortuous development Astrazeneca plc’s anifrolumab has been approved by the FDA for the autoimmune disease systemic lupus erythematosus (SLE), setting up a rivalry with its U.K.-based counterpart Glaxosmithkline plc. The first-in-class type 1 interferon receptor antibody, the first new drug for the disease in a decade, will be marketed under the brand name Saphnelo for adults with moderate to severe disease who are receiving standard therapy.

LONDON – Topas Therapeutics GmbH announced the close of a series B round at €40 million (US$47.5 million), to take forward its two lead immune tolerizing programs. The first, TPM-203, is in clinical development for the treatment of the rare, severe autoimmune skin disorder pemphigus vulgaris, while the second, TPM-502, is due to enter the clinic in celiac disease before the end of the year.