Summit Awarded up to ?4.0 Million from the Wellcome Trust to Support Clinical Development of Selective C. difficile Antibiotic

Summit Awarded up to £4.0 Million from the Wellcome Trust to Support Clinical Development of Selective C. difficile Antibiotic

22nd of October, 2012

Oxford, UK, 22 October 2012 – Summit (AIM: SUMM), a UK drug discovery company, is pleased to announce that it has extended its partnership with the Wellcome Trust through a translational research award worth up to £4.0 million ($6.5 million) to support the development of SMT 19969 to clinical proof of concept studies. SMT 19969 is a novel, oral small molecule being developed as a specific antibiotic for the treatment of infections caused by C. difficile.

“Summit is delighted to extend its partnership with the Wellcome Trust to support the development of one of our core programmes,” commented Glyn Edwards, Chief Executive Officer of Summit. “This Wellcome Trust award endorses the potential of SMT 19969, our promising antibiotic for the treatment of serious infections caused by C. difficile bacteria, and will provide non-dilutive funding to de-risk its development as it advances through important clinical milestones.”

“C. difficile infection represent a serious healthcare threat and this £4.0 million translational award underlines the Wellcome Trust’s commitment to supporting the development of new and effective antibiotic treatments,” commented Ted Bianco, Director of Technology Transfer at the Wellcome Trust. “We are pleased to be extending our successful partnership with Summit and look forward to testing in the clinic the potential of the SMT 19969 drug.”

Under the terms of the award, Summit will be eligible for up to £4.0 million in staged, success-based payments. Summit will immediately receive £1.26 million that will support a Phase 1 clinical trial in healthy volunteers and additional non-clinical studies designed to enhance the clinical data package. The Phase 1 trial is expected to commence by the end of 2012 with results expected in H1 2013. A successful outcome would trigger a further three payments from the Wellcome Trust with these contributing significantly towards undertaking a Phase 2 proof of concept trial in patients.

The award is being made as part of the Wellcome Trust’s Translation Award programme. This represents the second funding award the Wellcome Trust has made to support Summit’s C. difficile antibiotic programme and follows an award made under the Seeding Drug Discovery Initiative in 2009. A new funding agreement has been signed under which the Wellcome Trust share in net revenues generated by commercialisation of the programme.