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Share Name | Share Symbol | Market | Type |
---|---|---|---|
Scholar Rock Holdings Corporation | NASDAQ:SRRK | NASDAQ | Common Stock |
Price Change | % Change | Share Price | Bid Price | Offer Price | High Price | Low Price | Open Price | Shares Traded | Last Trade | |
---|---|---|---|---|---|---|---|---|---|---|
0.00 | 0.00% | 9.21 | 7.60 | 9.34 | 3 | 12:00:00 |
“We are proud to be presenting these exciting results that demonstrate a highly specific TGFβ1 inhibitor overcomes primary resistance to checkpoint blockade therapy while minimizing the toxicities associated with pan-TGFβ inhibition,” said Nagesh Mahanthappa, Ph.D., President and CEO of Scholar Rock. “Despite the clinical breakthroughs achieved by cancer immunotherapy, there remains significant unmet need with a majority of patients failing to respond to checkpoint inhibition. These preclinical results, using models that we believe better emulate human tumors resistant to CBT, could potentially provide a new avenue in the pursuit of novel therapies for patients with cancer.”
TGFβ1 is the predominant TGFβ isoform expressed in many human tumors, particularly those for which CBT is an approved treatment. Based on analyses of human tumors that are resistant to CBT, TGFβ1 is implicated as a key contributor to immune exclusion that leads to primary resistance observed in patients. Scholar Rock evaluated SRTβ1-Ab3, a highly specific inhibitor of TGFβ1, in syngeneic mouse tumor models sharing key features that can be observed in resistant human tumors: high expression of TGFβ1 over TGFβ2 and TGFβ3, active TGFβ signaling, immune exclusion, and minimal to no response to anti-PD1/PDL1 therapy. In these preclinical studies, treatment with SRTβ1-Ab3 drove effector cell infiltration and expansion and rendered solid tumors vulnerable to PD1 blockade.
Highlights from the preclinical data being presented at SITC for the poster, titled “Defeating checkpoint resistance: Highly specific inhibition of latent TGFβ1 activation renders resistant solid tumors vulnerable to PD-1 blockade” (Poster #550), include:
MBT-2 tumor model (Response*: %, N) | Cloudman S91 tumor model (Response**: %, N) | |
Control | 0% (0/13) | 0% (0/11) |
Anti-PD1 monotherapy | 0% (0/13) | 17% (2/12) |
SRTβ1-Ab3 monotherapy | 0% (0/12) | 0% (0/12) |
Anti-PD1/ SRTβ1-Ab3, 3 mg/kg | 29% (4/14) | 83% (10/12) |
Anti-PD1/ SRTβ1-Ab3, 10 mg/kg | 57% (8/14) | 78% (7/9) |
Anti-PD1/ SRTβ1-Ab3, 30 mg/kg | – | 73% (8/11) |
* For MBT-2: Response provides percentage of animals that achieved a tumor volume at study end of less than 25% of the 1,200mm3 survival threshold.** For Cloudman S91: Response provides percentage of animals that achieved a tumor volume at the interim study cutoff of less than 25% of the 2,000mm3 survival threshold. This study is ongoing to continue assessment of response durability.
Scholar Rock will host an investor and analyst event beginning at 2:00 p.m. ET on Saturday, November 10, 2018. The live webcast may be accessed by visiting the Investors & Media section of the Scholar Rock website at http://investors.scholarrock.com. An archived replay of the webcast will be available on the Company’s website for approximately 90 days following the presentation.
The poster can be accessed at: http://www.scholarrock.com/platform/publications/
About Scholar Rock Scholar Rock is a clinical-stage biopharmaceutical company focused on the discovery and development of innovative medicines for the treatment of serious diseases in which signaling by protein growth factors plays a fundamental role. Scholar Rock is creating a pipeline of novel product candidates with the potential to transform the lives of patients suffering from a wide range of serious diseases, including neuromuscular disorders, cancer, fibrosis and anemia. Scholar Rock’s newly elucidated understanding of the molecular mechanisms of growth factor activation enabled it to develop a proprietary platform for the discovery and development of monoclonal antibodies that locally and selectively target these signaling proteins at the cellular level. By developing product candidates that act in the disease microenvironment, the Company intends to avoid the historical challenges associated with inhibiting growth factors for therapeutic effect. Scholar Rock believes its focus on biologically validated growth factors may facilitate a more efficient development path. For more information, please visit www.ScholarRock.com or follow Scholar Rock on Twitter (@ScholarRock) and LinkedIn.
Scholar Rock® is a registered trademark of Scholar Rock, Inc.
Forward-Looking StatementsThis press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding Scholar Rock’s future expectations, plans and prospects, including without limitation, Scholar Rock’s expectations regarding the ability of its inhibitor of TGFβ1 to render tumors vulnerable to checkpoint blockade therapy, including the inhibitor’s ability, as a monotherapy or in combination with other therapies, to affect tumor regression, tumor control or survival; the toxicity profile of its inhibitor of TGFβ1; and the ability of its inhibitor of TGFβ1 to be a monotherapy or combination therapy for patients with cancer. The use of words such as “may,” “might,” “will,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “project,” “intend,” “future,” “potential,” or “continue,” and other similar expressions are intended to identify such forward-looking statements. All such forward-looking statements are based on management's current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include the reproducibility of any preclinical data presented; the inability to produce similar data in patients compared to the data from preclinical studies; data generated from Scholar Rock’s future nonclinical studies and clinical trials; and Scholar Rock’s ability to obtain, maintain and protect its intellectual property as well as those risks more fully discussed in the section entitled "Risk Factors" in Scholar Rock’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2018, as well as discussions of potential risks, uncertainties, and other important factors in Scholar Rock’s subsequent filings with the Securities and Exchange Commission. Any forward-looking statements represent Scholar Rock’s views only as of today and should not be relied upon as representing its views as of any subsequent date. All information in this press release is as of the date of the release, and Scholar Rock undertakes no duty to update this information unless required by law.
Scholar Rock Contact: Investors/Media Catherine Hu chu@scholarrock.com 917-601-1649 Media Contact: The Yates Network Kathryn Morris kathryn@theyatesnetwork.com 914-204-6412
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