KAZIA LICENSES GLOBAL RIGHTS TO EVT801, A NOVEL, FIRST-IN-CLASS, CLINIC-READY, VEGFR3 INHIBITOR, FROM EVOTEC SE

On April 19, 2021 Kazia Therapeutics Limited (ASX: KZA;NASDAQ: KZIA), an oncology-focused drug development company, reported that it has entered into a worldwide exclusive licensing agreement and a master services agreement with Evotec SE (FRA: EVT), a leading European drug discovery and development company, for EVT801, a small-molecule, first-in-class oncology drug candidate. Kazia expects to launch a phase I clinical trial of EVT801 in CY2021 (Press release, Kazia Therapeutics, APR 19, 2021, View Source [SID1234578160]).

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Key Points

Evotec has granted Kazia an exclusive global worldwide license to develop, manufacture, and commercialise EVT801 in all territories and indications.
Under the terms of the agreement, Kazia will pay an immediate upfront of €1 million (AU$ 1.6 million), contingent milestones of up to €308 million (AU$ 480 million) related to achievement of clinical, regulatory, and commercial outcomes over the lifetime of the drug, and a tiered single-digit royalty on net sales.
Evotec is a leading drug discovery and development company, headquartered in Hamburg, Germany, and listed on the Frankfurt Stock Exchange.
EVT801 is a small-molecule inhibitor of VEGFR3. Its primary activity is to inhibit lymphangiogenesis, the formation of new lymphatic vessels around a growing tumour. By doing so, EVT801 is expected to starve the tumour of vital nutrients and to reduce metastasis. EVT801 also has marked activity on the immune system within the tumour and may therefore enhance the activity of immuno-oncology therapies.
Kazia and Evotec have also entered into a master services agreement, under which the two companies will collaborate closely on the further development of EVT801.
EVT801 was originally discovered by Sanofi (NASDAQ: SNY), the largest pharmaceutical company in France and among the five largest in the world and was developed through a partnership between Sanofi and Evotec.
Kazia expects to launch a phase I clinical trial in CY2021. The initial exploratory indications for EVT801 include renal cell carcinoma (kidney cancer), hepatocellular carcinoma (liver cancer), and soft tissue sarcoma.
Kazia CEO, Dr James Garner, commented, "We are delighted to add this tremendously exciting new compound to the Kazia pipeline. Evotec have done first-class work in the early development of EVT801, and the preclinical data package is exceptionally strong. We intend to fast track a phase I clinical trial of the drug, which we expect to commence in CY2021."

He added, "As we have built Kazia over the past five years, our strategy has been to assemble a portfolio of world-class development candidates through in-licensing. The EVT801 transaction is wholly consistent with that strategy. We have demonstrated, through the paxalisib program, our ability to add value to a development candidate, and we intend to similarly accelerate EVT801 via a rich and innovative development program."

Evotec CEO, Dr Werner Lanthaler, commented, "we are very pleased to partner with Kazia for this promising asset, for which we have high hopes. Our corporate strategy does not provide for Evotec to take EVT801 through clinical trials itself, so we have sought to identify a partner who can do justice to the drug’s potential. We recognise Kazia’s track record and look forward to working together to make EVT801 available to patients and clinicians."

EVT801

EVT801 is a small molecule inhibitor of vascular endothelial growth factor receptor 3 (VEGFR3). It is orally available, and so can be administered to patients by mouth.

For more than two decades, one of the most successful approaches in the treatment of cancer has been to target angiogenesis, the formation of new blood vessels. Drugs which inhibit angiogenesis, such as Avastin (bevacizumab), starve the growing tumour of nutrients. However, inhibiting angiogenesis also results in hypoxia (low levels of oxygen) around the tumour, and this is thought to generate resistance to treatment. Almost all cancers treated with current anti-angiogenic drugs will eventually develop resistance.

An alternative approach, which may avoid this problem, is to target lymphangiogenesis, which is the formation of new lymphatic vessels. Doing so achieves many of the same objectives as targeting angiogenesis but may avoid the problem of resistance induced by hypoxia. Moreover, the lymphatic system is a common route by which tumours spread (metastasise) throughout the body, and so inhibiting lymphangiogenesis may help to limit the ability of the tumour to spread.

In recent years, several new drug candidates have attempted to inhibit lymphangiogenesis. For example, Nexavar (sorafenib) inhibits several forms of VEGFR, as well as other targets, and is approved for the treatment of renal cell carcinoma and hepatocellular carcinoma. Several drugs described as angiokinase inhibitors are in development, and some of these inhibit VEGFR3. However, each of these drugs has multiple targets, leading in many cases to significant side effects. The distinguishing feature of EVT801 is a high degree of specificity for VEGFR3, which should allow it to minimise toxicity.

In addition, EVT801 has shown powerful evidence in the laboratory of an ability to change the balance of immune cells within the tumour. Many tumours are resistant to the newest generation of immuno-oncology therapies because they do not contain the right immune cells for the drugs to act upon. It is hoped that administration of EVT801 may help to sensitise these tumours to immuno-oncology therapies such as Keytruda (pembrolizumab) and Opdivo (nivolumab) and thereby extend their use.

Kazia expects to explore all these potential uses of EVT801 during the clinical program. The initial focus will be on a phase I study, which is expected to be conducted at one or more leading hospitals in France and to commence in CY2021.

Master Services Agreement

In parallel with the license agreement, Kazia and Evotec have entered into a Master Services Agreement (MSA), under which they will collaborate on the further development of EVT801. Kazia intends to utilise Evotec’s substantial capabilities and expertise in research, clinical trial management, biomarker development, and manufacturing, to expedite the development of EVT801.

Investor Conference Call

Kazia is pleased to invite investors to attend a conference call to further discuss the EVT801 in-licensing.

The call will be held on Tuesday 20 April 2021 at 8:00am, Sydney time (AET), which is 6pm on Monday 19 April in New York (ET) and 3pm on Monday 19 April in San Francisco (PT).

Participants will need to pre-register for the call via the following link:

Registration Link: View Source

Click the ‘Register Now’ button and follow the prompts to complete pre-registration. You will then receive a calendar invite with dial in numbers, a passcode and a PIN to dial into the conference call.

Transactions in connection with share buy-back program

On April 19, 2021 Genmab A/S (Nasdaq: GMAB) reported the initiation of a share buy-back program to mitigate dilution from warrant exercises and to honor our commitments under our Restricted Stock Units program (Press release, Genmab, APR 19, 2021, View Source [SID1234578159]).

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The share buy-back program is expected to be completed no later than June 30, 2021 and comprises up to 200,000 shares.

The following transactions were executed under the program from April 12, 2021 to April 16, 2021:

Details of each transaction are included as an appendix to this announcement.

Following these transactions, Genmab holds 217,977 shares as treasury shares, corresponding to 0.33% of the total share capital and voting rights.

The share buy-back program is undertaken in accordance with Regulation (EU) No. 596/2014 (‘MAR’) and the Commission Delegated Regulation (EU) 2016/1052, also referred to as the "Safe Harbour Regulation." Further details on the terms of the share buy-back program can be found in our company announcement no. 11 dated February 23, 2021.

ERYTECH Announces Completion of First Cohort in a Phase 1 Investigator Sponsored Trial of Eryaspase in First-Line Pancreatic Cancer

On April 19, 2021 ERYTECH Pharma (Nasdaq & Euronext: ERYP), a clinical-stage biopharmaceutical company developing innovative therapies by encapsulating therapeutic drug substances inside red blood cells, reported the completion of enrollment of the first treatment cohort and the escalation to the next and potentially final dose level in a Phase 1 investigator sponsored clinical trial (IST), named rESPECT, of its lead product candidate eryaspase for the first-line treatment of pancreatic cancer (Press release, ERYtech Pharma, APR 19, 2021, https://erytech.com/erytech-announces-completion-of-first-cohort-in-a-phase-1-investigator-sponsored-trial-of-eryaspase-in-first-line-pancreatic-cancer/ [SID1234578158]).

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Sirnaomics Initiates Phase 2 Study Using STP705 for Keloid Scar Prevention

On April 18, 2021 Sirnaomics, Inc., a biopharmaceutical company engaged in the discovery and development of RNAi therapeutics against cancer and fibrotic diseases, reported the initiation of a Phase 2 study of the company’s lead drug candidate, STP705, for Keloid scar prevention (Press release, Sirnaomics, APR 18, 2021, View Source [SID1234578167]). The Phase 2, multi-center, randomized, double-blind, multiple-arm, controlled study is designed to evaluate the safety and efficacy of various doses of STP705 in reducing post-keloidectomy keloid recurrence.

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The primary endpoint of this trial is to measure the rate of recurrence in patients who have undergone surgery alone (receiving placebo) versus surgery and STP705 at three months, six months, and 12 months post-surgical excision.

"We anticipate that this important study should render additional data on STP705’s unique mechanism of action on skin fibrotic scarring, following the promising results in previous studies," said Patrick Lu, Ph.D., founder, President and CEO of Sirnaomics. "This approach for Keloid scar prevention is indicative of our strategy to leverage STP705’s dual-targeted inhibitory property and polypeptide nanoparticle-enhanced delivery to develop improved options for treating different cancer indications."

"Keloid scarring is a serious medical condition resulting in abnormal scar formation and pain along with having a very negative psychological impact on patients who suffer from the disease," said Michael Molyneaux M.D., Chief Medical Officer. "There is currently no treatment apart from surgical removal and this carries a very high recurrence rate. We seek to offer patients a viable alternative to prevent recurrence after surgical resection."

Sirnaomics expects to report initial clinical data from the Phase 2 trial in the second half of 2021. Additional information about this clinical trial is available at clinicaltrials.gov using the identifier: NCT04844840.

About Keloid Scar
Keloids form as a result of aberrations of physiologic wound healing and may arise following any insult to the deep dermis. By causing pain, pruritus and contractures, excessive scarring significantly affects the patient’s quality of life, both physically and psychologically. Multiple studies on keloid formation have been conducted for decades and have led to a plethora of therapeutic strategies to prevent or attenuate excessive scar formation. However, most therapeutic approaches remain clinically unsatisfactory, most likely owing to poor understanding of the complex mechanisms underlying the processes of scarring and wound contraction.

Pathophysiology of keloids entails a prolonged inflammatory and proliferative phase of wound healing after injury. Among various cytokines promoting keloids formation, TGF-β1 is known as a key regulator of the aberrant fibrogenic response, while COX-2 acts a potent proinflammatory and proliferative mediator. When STP705 was locally injected into the human hypertrophic scar tissues, which were surgically removed from patients and implanted onto nude mice, the company observed scar size reductions, accompanying with not only target gene silencing but down regulation of fibrogenic markers including α-SMA, hydroxyproline, Collagen 1, and Collagen 3. Further analysis revealed that STP705 is able to induce fibroblast apoptosis both in vitro and in vivo. Therefore, the synergistic effect of simultaneous silencing of TGF-β1 and COX-2 may reverse skin fibrotic scarring through minimizing inflammation and activating fibroblast apoptosis. This mechanism of action of STP705 can be widely applied for treatment of many fibrotic conditions.

About STP705
Sirnaomics’ leading product candidate, STP705, is a siRNA (small interfering RNA) therapeutic that takes advantage of a dual-targeted inhibitory property and polypeptide nanoparticle (PNP)-enhanced delivery to directly knock down both TGF-β1 and COX-2 gene expression. The product candidate has received multiple IND approvals from both the US FDA and Chinese NMPA, including treatments of cholangiocarcinoma, nonmelanoma skin cancer and hypertrophic scar. STP705 has also received Orphan Drug Designation for treatment of cholangiocarcinoma and primary sclerosing cholangitis. A Phase 2a study of STP705 for treatment of squamous cell skin cancer (isSCC) in adult patients demonstrated positive efficacy and safety results, with 76% of all patients (19/25) achieving complete histologically clearance and the two optimal dosing ranges achieving 90% histological clearance of tumor cell in the lesion. No significant or serious adverse events, including no significant cutaneous skin reactions, were reported in the study, and the company was able to define a clear therapeutic window in advance of later stage studies.

Transcenta Announced Successful First Patient Dosed in Phase I Clinical Study of TST001 Combined with CAPOX for the Treatment of Patients with First-line Locally Advanced Unresectable or Metastatic Gastric Cancer

On April 18, 2021 Transcenta Holding Limited (Transcenta), a clinical stage global biotherapeutics company with fully-integrated capabilities in discovery, development and manufacturing of antibody-based therapeutics, reported the first patient has been successfully dosed in Phase I clinical study of TST001, a humanized monoclonal antibody targeting human Claudin18.2 (CLDN18.2), in combination with CAPOX for the treatment of patients with first-line locally advanced unresectable or metastatic gastric cancer (Press release, Transcenta, APR 18, 2021, View Source [SID1234578147]).

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TST001 is a second-generation recombinant humanized monoclonal antibody targeted CLDN18.2,generated by Transcenta’s independently-developed Immune Tolerance Breaking Technology (IMTB) platform. TST001 can target and kill tumor cells expressing CLDN18.2 by leveraging mechanisms such as complement-dependent cytotoxicity (CDC) and antibody-dependent cellular cytotoxicity (ADCC) through combining CLDN18.2 with high specificity and affinity. With advanced technology, the fucose content of TST001 was significantly reduced during the production, which further enhancing the ADCC-mediated tumor killing activity of TST001. TST001 demonstrated better antitumor efficacy than IMAB362 analogues in pharmacodynamic experiments in mice (in vivo). TST001 has been launched in clinical research in China and US in July 2020 (NCT04396821, NCT04495296/CTR20201281).

"CLDN18.2 is found to be overexpressed in many tumors including gastric cancer,pancreatic cancer and esophageal cancer. At present, the first-in-class drug IMAB362 has shown promising efficacy in phase II FAST study mainly in first-line gastric cancer patients with high CLDN18.2 expression. "Professor Lin Shen from Beijing Cancer Hospital, believes that "Rapidly advancing the study of the combination of TST001 and standard chemotherapy in first-line gastric cancer patients could help us to accelerate the assessment of its therapeutic value in large number of gastric cancer patients expressing CLDN18.2."

"Gastric cancer is the most common tumor species in China and Asia. About 70% of gastric cancer patients express CLDN18.2. TST001 is a second-generation recombinant humanized monoclonal antibody targeted CLDN18.2. Preclinical studies have found that TST001 can not only efficiently kill gastric cancer cells with high expression of CLDN18.2, but also be very effective against gastric cancer cells with moderate to high expression of CLDN18.2. TST001 has been launched in clinical research in China and US in July 2020. We hope to explore the safe tolerance and anti-tumor activity of TST001 combined with CAPOX in first-line gastric cancer patients through this study, so as to provide a basis for later registrational clinical studies." said Dr. Michael Shi, EVP, Head of Global R&D and CMO of Transcenta.