CAMBRIDGE, UK– 6 July 2020 – Mission Therapeutics (“Mission”), a drug discovery and development company focused on selectively inhibiting deubiquitylating enzymes (DUBs), today announced that it has raised $15m (£12m) in equity investment. The round was led by existing investor Pfizer Ventures, the venture capital arm of Pfizer Inc. (“Pfizer”)(NYSE: PFE).

Mission and Pfizer Inc. have also expanded their relationship by entering into an evaluation and option agreement for DUB target validation.

Fund raising

Pfizer Ventures has been an investor in Mission Therapeutics since 2013. Today it made a further equity investment into the Company, contributing a super pro rata amount. All other existing investors within Mission joined the round on a pro rata basis. No further financial details have been disclosed.

The new capital will support development of Mission’s world-leading DUB platform, as well as growth of its pipeline of DUB inhibitor programmes.

Expansion of Pfizer collaboration

DUBs have attracted significant interest as potential drug targets. Playing an integral role in protein homeostasis, this large family of enzymes is involved in diverse cellular processes and many disease pathologies.

Under the terms of the evaluation and option agreement, Pfizer will access specific DUB inhibitors from Mission’s platform and test these compounds in phenotypic screens to validate promising drug targets. Pfizer will then have the option to negotiate target exclusivity for each of the DUBs of interest.

The agreement does not include any of Mission’s own lead DUB programs, such as USP30.

Commenting on the agreement, Dr. Denis Patrick, Managing Partner of Pfizer Ventures and Member of Mission’s Board of Directors, said: