News Release Details
Phio Announces Positive In Vivo Data On Combination PD-1 And TIGIT Checkpoint Blockade With INTASYL In A Single Therapeutic For Cancer Treatment
These results build on previously published data showing that intratumoral delivery of individual INTASYL compounds inhibited tumor growth. The data presented at SITC 2020 demonstrated that such antitumoral effect can be significantly improved by combining different INTASYL compounds. Therefore, the Company believes the use of our pipeline products in combination show great promise in the treatment of solid tumors.
The Company's pipeline programs PH-762, PH-790 and PH-804 are INTASYL compounds designed to silence the expression of PD-1, PD-L1 and TIGIT, respectively, which are proteins linked to reduced immune cell function in cancer patients. Previously, a series of preclinical in vivo studies in tumor models were conducted and the resulting data showed dose-dependent attenuated tumor growth for the INTASYL compounds compared to control groups. The new data shows that whereas in vivo efficacy of INTASYL monotherapy was analogous to that of systemically delivered antibody therapy for each target, combining INTASYL targeting TIGIT + PD-1 or TIGIT + PD-L1 inhibited tumor growth even further, without having a negative impact on the tolerability of the treatment.
"Recent study results with systemic immune checkpoint blockade antibody therapies shows promise of combination therapy, but the serious immune-related adverse events seen with such antibody therapy results in significant hurdles for realizing their maximum clinical potential when these antibodies are used in combination. INTASYL therapies administered intratumorally represent an attractive alternative strategy," said Dr.
A poster further detailing the data presented at the SITC 2020 Virtual Scientific Program will be made available under the "Investors – Events and Presentations" section of the Company's website (click here).
Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are neither historical facts nor assurances of future performance. These statements are based only on our current beliefs, expectations and assumptions regarding the impact to our business and operations by the recent coronavirus outbreak, results from our preclinical and clinical activities, the development of our product candidates, the ability to obtain future financing, the future of our business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of our control. Our actual results may differ materially from those indicated in the forward-looking statements as a result of a number of important factors, including, but not limited to, market and other conditions and those identified in our Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q under the caption "Risk Factors" and in other filings the Company periodically makes with the SEC. Readers are urged to review these risk factors and to not act in reliance on any forward-looking statements, as actual results may differ from those contemplated by our forward-looking statements. Phio does not undertake to update forward-looking statements to reflect a change in its views, events or circumstances that occur after the date of this release, except as required by law.
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