Craig A. Dionne to Speak at BIO International 2015

SAN ANTONIO, TX and PHILADELPHIA, PA--(Marketwired - Jun 15, 2015) - GenSpera, Inc. (OTCQB: GNSZ) announced today that Craig A. Dionne, Ph.D., chairman and chief executive officer at GenSpera, will present at BIO International Convention 2015 on Wednesday, June 17, 2015 at 2:00 P.M. in Philadelphia, PA.

The presentation will run on the Oncology track and will be held in Theatre 4, "The Incredible Helix".

Dr. Dionne stated, "I am pleased to present the latest news on mipsagargin during the Oncology track at BIO International 2015. This is a significant opportunity to share our Company's story with a wide audience of global biotechnology leaders. I thank the conference organizers for the opportunity."

About Mipsagargin

Mipsagargin is a prodrug in human clinical trials for several different tumor types. Mipsagargin consists of a thapsigargin derivative, 12ADT, coupled to a peptide that helps solubilize the prodrug and prevents its internalization into cells until the peptide is removed. The mechanism of action works by targeting the enzyme PSMA, which is highly expressed on the surface of almost all cancer tumor vasculature, including those of glioblastoma. PSMA recognizes and removes the peptide, releasing the active ingredient 12ADT into the cell and bringing about cell death. The prodrug delivery system ensures that mipsagargin is activated only within the tumor, providing greater anti-tumor efficacy and minimizing side effects.

About The Bio International Convention

The BIO International Convention is the largest global event for the biotechnology industry and attracts the biggest names in biotech, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends affecting the industry. The event features keynotes and sessions from key policymakers, scientists, CEOs, and celebrities

About GenSpera

GenSpera, Inc. is a San Antonio-based biotech company that unlocks conventional thinking to conceive, design, and develop cancer therapies. GenSpera's technology platform combines a powerful, plant-derived cytotoxin (thapsigargin) with a patented prodrug delivery system that provides for targeted release of drug candidates within tumors. GenSpera's lead drug candidate, mipsagargin, was granted Orphan Drug designation by the U.S. Food and Drug Administration (FDA) in 2013 for evaluation in patients with hepatocellular carcinoma (liver cancer).

For additional information on GenSpera, visit www.genspera.com and connect on Twitter, LinkedIn, Facebook, YouTube and Google+.

Cautionary Statement Regarding Forward Looking Information

This communication may contain forward-looking statements. Investors are cautioned that statements in this document regarding potential applications of GenSpera's technologies or the future prospects of the company constitute forward-looking statements that involve risks and uncertainties, including, without limitation, risks inherent in the development and commercialization of potential products, uncertainty of clinical trial results or regulatory approvals or clearances, need for future capital, dependence upon collaborators and maintenance of our intellectual property rights and the acceptance of GenSpera's proposed therapies by the health community. Actual results may differ materially from the results anticipated in these forward-looking statements. Additional information on potential factors that could affect our results and other risks and uncertainties will be detailed from time to time in GenSpera's periodic reports filed with the Securities and Exchange Commission.