Nature of Business	12 Months Ended
Dec. 31, 2014
Nature of Business
Nature of Business	(1) Nature of Business Synta Pharmaceuticals Corp. (the Company) was incorporated in March 2000 and commenced operations in July 2001. The Company is an innovative, agile biopharmaceutical company focused on research, development and commercialization of novel oncology medicines that have the potential to change the lives of cancer patients. The Company is subject to risks common to emerging companies in the drug development and pharmaceutical industry including, but not limited to, uncertainty of product development and commercialization, lack of marketing and sales history, dependence on key personnel, uncertainty of market acceptance of products and product reimbursement, product liability, uncertain protection of proprietary technology, potential inability to raise additional financing and compliance with the U.S. Food and Drug Administration and other government regulations. The Company has incurred significant operating losses since its inception and, as a result, as of December 31, 2014 had an accumulated deficit of $637.6 million. Operations have been funded principally through the sale of common stock and convertible preferred stock, capital leases, non-refundable payments under the former collaboration agreements with GlaxoSmithKline (GSK) and Hoffman-La Roche (Roche), and proceeds from term loans by General Electric Capital Corporation (GECC) and Oxford Finance Corporation (Oxford) (see Note 9). The Company expects its $97.7 million in cash, cash equivalents and marketable securities as of December 31, 2014 will be sufficient to fund operations at least through the end of 2015. This estimate assumes no additional funding from new partnership agreements, equity financings or further sales under the Company's at-the-market-issuance sales agreement (ATM) with MLV & Co. LLC (MLV) (see Note 5). The timing and nature of certain activities contemplated for 2015 will be conducted subject to the availability of sufficient financial resources. The Company may require significant additional funds earlier than it currently expects in order to conduct additional clinical trials and continue to fund its operations. There can be no assurances, however, that additional funding will be available on favorable terms, or at all. If adequate funds are not available, the Company may be required to delay, significantly modify or terminate its research and development programs or reduce its planned commercialization efforts.

(1) Nature of Business

Synta Pharmaceuticals Corp. (the Company) was incorporated in March 2000 and commenced operations in July 2001. The Company is an innovative, agile biopharmaceutical company focused on research, development and commercialization of novel oncology medicines that have the potential to change the lives of cancer patients.

The Company is subject to risks common to emerging companies in the drug development and pharmaceutical industry including, but not limited to, uncertainty of product development and commercialization, lack of marketing and sales history, dependence on key personnel, uncertainty of market acceptance of products and product reimbursement, product liability, uncertain protection of proprietary technology, potential inability to raise additional financing and compliance with the U.S. Food and Drug Administration and other government regulations.

The Company has incurred significant operating losses since its inception and, as a result, as of December 31, 2014 had an accumulated deficit of $637.6 million. Operations have been funded principally through the sale of common stock and convertible preferred stock, capital leases, non-refundable payments under the former collaboration agreements with GlaxoSmithKline (GSK) and Hoffman-La Roche (Roche), and proceeds from term loans by General Electric Capital Corporation (GECC) and Oxford Finance Corporation (Oxford) (see Note 9).

The Company expects its $97.7 million in cash, cash equivalents and marketable securities as of December 31, 2014 will be sufficient to fund operations at least through the end of 2015. This estimate assumes no additional funding from new partnership agreements, equity financings or further sales under the Company's at-the-market-issuance sales agreement (ATM) with MLV & Co. LLC (MLV) (see Note 5). The timing and nature of certain activities contemplated for 2015 will be conducted subject to the availability of sufficient financial resources.

The Company may require significant additional funds earlier than it currently expects in order to conduct additional clinical trials and continue to fund its operations. There can be no assurances, however, that additional funding will be available on favorable terms, or at all. If adequate funds are not available, the Company may be required to delay, significantly modify or terminate its research and development programs or reduce its planned commercialization efforts.