Westport, Conn. — September 17, 2020 – Intensity Therapeutics, Inc., a clinical-stage biotechnology company developing proprietary technology and products to kill tumors and increase immune system recognition of the cancer, today announced that the first patient has been dosed with a combination of INT230-6, the Company’s lead investigational product, and Yervoy® (ipilimumab), Bristol Myers Squibb’s (BMS) Cytotoxic T Lymphocyte-Associated Antigen 4 (CTLA-4) immune checkpoint inhibitor therapy in Phase 2. The combination is being studied in a series of phase 2 expansion cohorts within IT-01, Intensity’s ongoing international clinical study (NCT03058289), which evaluates the safety and efficacy of the combination in patients with three different types of cancer (breast cancer, liver cancer, and sarcoma).

“Bringing INT230-6 into phase 2 human testing in combination with Yervoy is an important  achievement for Intensity Therapeutics,” commented Lewis H. Bender, President and Chief Executive Officer of Intensity Therapeutics. “Our preclinical and clinical data have resulted in favorable safety for INT230-6 as a single agent or in combination with immunotherapies.  The phase 1 escalation portion of our INT230-6 development program is complete.  We are excited about starting the phase 2 portion of our trial using INT230-6 at proper doses early in the treatment process especially in combination with Yervoy.”

“The phase 2 Yervoy combination studies accrue patients with  breast cancer, liver cancer, and sarcoma that are refractory to standard of care and have high unmet medical need” said Ian B. Walters, MD, Chief Medical Officer of Intensity Therapeutics. “We are optimistic that our trial design enables us to quickly evaluate safety and efficacy in patients having cancers that are difficult to treat.  Physicians desperately need better therapies for their patients.  Our approach to safely debulk tumors and recruit an immune response by releasing tumor antigens derived from the patient’s own tumors may be amplified by blocking a checkpoint signal using Yervoy.”

About INT230-6

INT230-6, Intensity’s lead proprietary product candidate, is designed for direct intratumoral injection. INT230-6 was discovered using Intensity’s proprietary DfuseRxSM technology platform. The drug is comprised of two proven, potent anti-cancer agents, cisplatin and vinblastine, and a penetration enhancer molecule that helps disperse the drugs throughout tumors for diffusion into cancer cells. In preclinical studies, INT230-6 eradicated tumors by a combination of direct tumor killing, release of tumor antigens and recruitment of immune cells to the tumor.  Results generated by both the Company and the National Cancer Institute (NCI) showed treatment with INT230-6 in in vivo models of severe cancer resulted in substantial improvement in overall survival compared to standard therapies.  Further, INT230-6 provided complete responses in animals with long-term protection from multiple re-challenges of the initial cancer and resistance to other cancers. The Company’s research published in the International Journal of Molecular Sciences earlier this year and published jointly with the NCI as part of Intensity’s collaborative research, published in July 2019 in the Journal OncoImmunology, also showed strong synergy when INT230-6 was combined with anti-PD-1 and anti-CTLA-4 antibodies. INT230-6 is being evaluated in a Phase 1/2 clinical study (NCT03058289) in patients with various advanced solid tumors. There have been no dose limiting adverse events observed in patients to date, even when dosing into deep tumors in the lung and liver.  Several patients demonstrated tumor shrinkage, symptomatic improvement, and evidence of cancer cell death and immune cell activation on tumor biopsy.  In the combination cohort with pembrolizumab the Company reported the safety of the combination was comparable to INT230-6 monotherapy.

 About Intensity Therapeutics

 Intensity Therapeutics, Inc. is a privately held, clinical-stage biotechnology company pioneering a new immune-based approach to treat solid tumor cancers. Intensity leverages its DfuseRxSM technology platform to create new, proprietary drug formulations that, following direct injection, rapidly disperse throughout a tumor and diffuse therapeutic agents into cancer cells. Intensity’s product candidates have the potential to induce an adaptive immune response that not only attacks the injected tumor, but also non-injected tumors. The Company executed a Cooperative Research and Development Agreement (CRADA) with the National Cancer Institute’s (NCI) Vaccine Branch in 2014.  The Company has a clinical collaboration with Merck Sharpe & Dohme (Merck)  to evaluate the combination of INT230-6, Intensity’s lead product candidate, and KEYTRUDA® (pembrolizumab), Merck’s anti-PD-1  (programmed death receptor-1) therapy, in patients with advanced solid malignancies. The Company also has a clinical collaboration with Bristol Myers Squibb (BMS) to evaluate the combination of the Company’s lead product, INT230-6, with BMS’s anti-CTLA-4 antibody, Yervoy® (ipilimumab), in patients with advanced solid malignancies.  For more information, please visit www.intensitytherapeutics.com and follow us on Twitter @IntensityInc.

Forward Looking Statements

This press release contains forward-looking statements regarding Intensity Therapeutics’ plans, future operations and objectives. Such statements involve known and unknown risks, uncertainties and other factors that may cause actual performance or achievements to be materially different from those currently anticipated. These forward-looking statements include, among other things, statements about the initiation and timing of future clinical trials.

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