Sesen Bio and Qilu Pharmaceutical Announce Approval of IND Application in China for Vicineum
Sesen Bio (Nasdaq: SESN), a late-stage clinical company developing targeted fusion protein therapeutics for the treatment of patients with cancer, today announced that the Investigational New Drug (IND) application for Vicineum for the treatment of BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) submitted to the Center for Drug Evaluation (CDE) of the China National Medical Products Administration (NMPA) by the Company’s partner in China, Qilu Pharmaceutical, was approved ahead of the original timeline of April 2021.
With approval of the IND, Qilu Pharmaceutical is authorized to conduct the proposed clinical trial to assess the efficacy and safety of Vicineum in patients with BCG-unresponsive NMIBC in China, at the sole cost of Qilu Pharmaceutical. Assuming a successful trial, Qilu Pharmaceutical anticipates submission of the product market application for Vicineum in 2022 with potential approval in China expected in 2023.
“The approval of the IND for Vicineum in China represents a significant milestone in realizing our mission to save and improve the lives of patients globally,” said Dr. Thomas Cannell, president and chief executive officer of Sesen Bio. “Due to more limited use of BCG in China compared to the US, there is an opportunity to transform the treatment paradigm of NMIBC in China. The approval of the IND ahead of the original timeline underscores the strong collaboration between Sesen Bio and our partner, Qilu Pharmaceutical. Given the highly experienced clinical oncology team at Qilu Pharmaceutical, and the Phase 3 trial results achieved in the US, we are optimistic on the prospects for a successful trial and expeditious submission. We look forward to continuing to work with Qilu Pharmaceutical and the NMPA to bring this potentially best-in-class treatment to patients in China.”
Sesen Bio is entitled to receive a $3M milestone payment from Qilu Pharmaceutical, the first of $23M in potential milestone payments. China represents a large potential market for Vicineum, with peak year sales estimated at $155-$418M. Additionally, the Company anticipates Qilu Pharmaceutical will become a key strategic partner for global supply of Vicineum and the manufacturing technology transfer to Qilu Pharmaceutical is on track to be completed in mid-2021. The completion of the manufacturing technology transfer triggers an additional $2M milestone payment.
Vicineum, a locally administered fusion protein, is Sesen Bio’s lead product candidate being developed for the treatment of BCG-unresponsive non-muscle invasive bladder cancer (NMIBC). Vicineum is comprised of a recombinant fusion protein that targets epithelial cell adhesion molecule (EpCAM) antigens on the surface of tumor cells to deliver a potent protein payload, Pseudomonas Exotoxin A. Vicineum is constructed with a stable, genetically engineered peptide tether to ensure the payload remains attached until it is internalized by the cancer cell, which is believed to decrease the risk of toxicity to healthy tissues, thereby improving its safety. In prior clinical trials conducted by Sesen Bio, EpCAM has been shown to be overexpressed in NMIBC cells with minimal to no EpCAM expression observed on normal bladder cells. Sesen Bio is currently in the follow-up stage of a Phase 3 registration trial in the US for the treatment of BCG-unresponsive NMIBC. In February 2021, the FDA accepted for filing the Company’s BLA for Vicineum for the treatment of BCG-unresponsive NMIBC and granted the application Priority Review with a PDUFA date of August 18, 2021. Additionally, Sesen Bio believes that cancer cell-killing properties of Vicineum promote an anti-tumor immune response that may potentially combine well with immuno-oncology drugs, such as checkpoint inhibitors. For this reason, the activity of Vicineum in BCG-unresponsive NMIBC is also being explored at the US National Cancer Institute in combination with AstraZeneca’s immune checkpoint inhibitor durvalumab.
About Sesen Bio
Sesen Bio, Inc. is a late-stage clinical company advancing targeted fusion protein therapeutics for the treatment of patients with cancer. The Company’s lead program, Vicineum, also known as VB4-845, is currently in the follow-up stage of a Phase 3 registration trial for the treatment of BCG-unresponsive non-muscle invasive bladder cancer (NMIBC). In February 2021, the FDA accepted for filing the Company’s BLA for Vicineum for the treatment of BCG-unresponsive NMIBC and granted the application Priority Review with a PDUFA date of August 18, 2021. Sesen Bio retains worldwide rights to Vicineum with the exception of Greater China and the Middle East and North Africa (MENA), for which the Company has partnered with Qilu Pharmaceutical and Hikma Pharmaceuticals, respectively, for commercialization. Vicineum is a locally administered targeted fusion protein composed of an anti-EpCAM antibody fragment tethered to a truncated form of Pseudomonas Exotoxin A for the treatment of BCG-unresponsive NMIBC. For more information, please visit the company’s website at www.sesenbio.com.
About Qilu Pharmaceutical
Qilu Pharmaceutical is a leading vertically integrated pharmaceutical company focused on discovering, developing, manufacturing and commercializing innovative medicines. With a diverse pipeline of novel therapeutics, 10 manufacturing sites and more than 23000 employees worldwide, Qilu is dedicated to transforming scientific innovation by internal R&D across 5 R&D platforms based in the US (Seattle WA, Boston MA, San Francisco CA) and China (Shanghai, Jinan), and external partnership globally into healthcare solutions to address unmet medical needs. To date, Qilu has launched 200+ products with 30+ products “First to launch” in China and 3 products “D181 launch” in US. To learn more about Qilu, please visit http://en.qilu-pharma.com.
COVID-19 Pandemic Potential Impact
Sesen Bio continues to monitor the rapidly evolving environment regarding the potential impact of the COVID-19 pandemic on our Company. The Company has not yet experienced any disruptions to our operations as a result of COVID-19, however, we are not able to quantify or predict with certainty the overall scope of potential impacts to our business, including, but not limited to, our ability to raise capital and, if approved, commercialize Vicineum. Sesen Bio remains committed to the health and safety of patients, caregivers and employees.
Cautionary Note on Forward-Looking Statements
Any statements in this press release about future expectations, plans and prospects for the Company, the Company’s strategy, future operations, and other statements containing the words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” and similar expressions, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: the timing for submission and potential approval of the product market application for Vicineum for the treatment of BCG-unresponsive NMIBC to the National Medical Products Administration, the timing and results of any clinical trial for Vicineum in China, the receipt by the Company of any milestone payments from Qilu Pharmaceutical, the ability of Vicineum to transform the treatment paradigm of NMIBC in China and become a best-in-class treatment for patients in China, the size of the potential market for Vicineum in China, the Company’s estimates for peak year sales in China, the prospect of Qilu Pharmaceutical becoming a key strategic partner for the global supply of Vicineum for the treatment of BCG-unresponsive NMIBC, the timing for completion of the manufacturing technology transfer with Qilu Pharmaceutical, the timing for the FDA’s decision on the Company’s BLA for Vicineum for the treatment of BCG-unresponsive NMIBC based on the FDA granting the BLA Priority Review, the PDUFA date of August 18, 2021 and the need for an advisory meeting on the BLA, the impact of COVID-19 on the Company, including its ability to raise capital, and, if approved, its ability to commercialize Vicineum for the treatment of BCG-unresponsive NMIBC, and other factors discussed in the “Risk Factors” section of the Company’s Annual Report on Form 10-K, filed with the Securities and Exchange Commission. In addition, the forward-looking statements included in this press release represent the Company’s views as of the date hereof. The Company anticipates that subsequent events and developments will cause the Company’s views to change. However, while the Company may elect to update these forward-looking statements at some point in the future, the Company specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing the Company’s views as of any date subsequent to the date hereof.
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