Press Releases

Curis, Inc. Announces Initiation of Expansion Cohort in Collaborator Genentech's Phase I Clinical Trial of a Systemically Administered Hedgehog Antagonist
Curis to receive $3 million payment

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 16, 2007--Curis, Inc. (NASDAQ: CRIS), a drug development company focused on seeking to develop proprietary targeted medicines primarily for cancer treatment, today announced that Genentech has initiated an expansion cohort in its ongoing Phase I clinical trial of a systemically administered Hedgehog antagonist. As a result, Curis will receive a $3 million cash payment from Genentech under the parties' June 2003 collaboration agreement.

Genentech began a Phase I clinical trial in January 2007, which is designed as an open-label study of a systemic Hedgehog antagonist in patients with locally advanced or metastatic cancers that are refractory to standard therapy or for whom no standard therapies exist. The primary objectives of the Phase I trial are to evaluate the safety and tolerability of escalating doses of the Phase I molecule, to establish the maximum tolerated dose and dose limiting toxicities and to characterize the pharmacokinetic and pharmacodynamic properties of the drug candidate. The initial objectives of the Phase I clinical trial have been achieved and the Phase I clinical trial expansion cohort is expected to enroll additional patients.

Genentech is obligated to make the $3 million cash payment because it determined that the Phase I clinical trial expansion cohort satisfied the criteria for a Phase II clinical trial under the parties' collaboration agreement.

"We are pleased that the Phase I systemic Hedgehog antagonist drug candidate has achieved its primary Phase I clinical trial objectives and that Genentech has elected to initiate a Phase I expansion cohort," said Curis President and CEO Dan Passeri. "While we realize that we are still in an early phase of human clinical testing, we continue to remain optimistic that this Hedgehog antagonist drug candidate may provide an effective therapeutic benefit to cancer patients in the future. We are also pleased with the receipt of $3 million in additional capital."

About the Genentech Curis Collaboration

In June 2003, Curis and Genentech entered into a collaboration for the development of Hedgehog pathway antagonists with a current focus on the clinical testing of a drug candidate in a variety of cancer types. Numerous preclinical reports have linked abnormal activation of the Hedgehog pathway to the growth of several cancers.

Under the terms of the parties' June 2003 collaboration agreement, Genentech previously paid Curis a $3 million cash payment after filing the IND application for this Phase I drug candidate. Should this drug candidate successfully continue its development into subsequent stages of clinical testing and regulatory approval, Curis would be eligible to receive additional cash payments. In addition, in the event the drug candidate is successfully commercialized, Curis would be eligible to receive royalties on product sales.

About Curis, Inc.

Curis is a drug development company that is committed to leveraging its innovative signaling pathway drug technologies to seek to create new medicines, primarily for cancer. In expanding its drug development efforts in the field of cancer through its Targeted Cancer Drug Development Platform, the Company is building upon its previous experiences in targeting signaling pathways in the areas of cancer, neurological disease and cardiovascular disease. For more information, visit

Cautionary Statement: This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the Company's expectations regarding the potential benefits of the Phase I clinical trial candidate to cancer patients. Forward-looking statements used in this press release may contain the words "believes", "expects", "anticipates", "plans", "seeks", "estimates", "will", "may" or similar expressions. These forward-looking statements are not guarantees of future performance and involve risks, uncertainties, assumptions and other factors that may cause the Company's actual results to be materially different from those indicated by such forward-looking statements including, among other things:

    --  adverse results, delays and/or failures in the Company's and
        its strategic collaborators' and licensees' product
        development programs, including without limitation its
        Hedgehog pathway antagonist program currently under Phase I
        clinical development with Genentech and its preclinical
        Targeted Cancer Drug Development Platform programs, including

    --  difficulties or delays in obtaining or maintaining required
        regulatory approvals;

    --  the Company's ability to obtain or maintain intellectual
        property protection necessary for the development and
        commercialization of products based on its technologies;

    --  changes in, or the Company's inability to execute, its
        business plan;

    --  the risk that Curis does not obtain the additional funding
        required to conduct research and development of its product
        candidates and execute its business plan;

    --  unplanned cash requirements and expenditures which, among
        other things, could shorten the estimated period in which the
        Company will have cash to fund its operations;

    --  risks relating to the Company's ability to enter into and
        maintain important strategic collaborations, and the risk that
        its current and future collaborators and licensees will not
        perform adequately, including its current collaborations with
        Genentech and Wyeth;

    --  competitive pressures; and

    --  other risk factors identified in the Company's most recent
        Current Report on Form 10-Q and its other reports periodically
        filed with the Securities and Exchange Commission.

In addition, any forward-looking statements represent the Company's views only as of today and should not be relied upon as representing its views as of any subsequent date. The Company disclaims any intention or obligation to update any of the forward-looking statements after the date of this press release whether as a result of new information, future events or otherwise.

CONTACT: Curis, Inc.
Michael P. Gray, 617-503-6632
Chief Financial Officer

SOURCE: Curis, Inc.