On April 12, 2021 Celldex Therapeutics, Inc. (Nasdaq:CLDX) reported the presentation of promising data from the Company’s growing bispecific platform at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2021 being held April 10th – 15th (Press release, Celldex Therapeutics, APR 12, 2021, View Source [SID1234577983]). The Company described the discovery and characterization of ILT4 inhibitory monoclonal antibodies (mAbs) for engineering bispecific antibodies (bsAbs) that revert myeloid cell suppression by antagonizing ILT4 and activate T-cell responses through PD-(L)1 inhibition (poster # 1865). Based on the results reported today, Celldex is developing clinical bispecific candidates that co-target ILT4 and PD-(L)1.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

Expression of ILT4 in several tumor types is associated with poor outcome. In preclinical models, antagonist antibodies to ILT4 have demonstrated immune enhancing and antitumor effects. More recently, in early clinical studies, combination approaches that combine co-targeting of ILT4 and checkpoint blockade have demonstrated clinical activity and safety, including in patients refractory to checkpoint inhibition therapy. The data Celldex presented at AACR (Free AACR Whitepaper) describe novel humanized antibodies with high affinity and specificity to ILT4 that effectively block immune suppression in macrophages. Candidate bispecific antibodies matched with either PD-L1 or PD-1 antibodies resulted in molecules that retained all the properties of the parental antibodies and simultaneously blocked the inhibitory signals from both ILT4 and PD-1. The data provide proof of concept for development of clinical candidates.

"Celldex continues to draw upon our deep antibody experience to build best-in-class bispecific antibodies to more effectively control antitumor immunity," said Tibor Keler, Ph.D., Executive Vice President and Chief Scientific Officer of Celldex Therapeutics. "The ILT4/PD-(L)1 approach combines two critical checkpoint pathways into one molecule, which may provide advantages from a development perspective and the potential for greater activity than the combination of the individual antibodies. We look forward to completing this work and selecting a lead candidate for advancement."

Celldex’s deep antibody experience and in-house manufacturing capabilities support efficient development of bispecific antibody targets. Targets are selected based on new science as well as their compatibility to be used in bispecific antibody formats with existing Celldex antibody programs. CDX-527, which combines CD27 activation and PD-1 blockade, was the first candidate to enter the clinic from the platform and is currently enrolling patients in a Phase 1 dose escalation study. Celldex is also exploring important targets controlling inflammation and auto-immune pathways.

On April 12, 2021 Lonza reported an expansion to its popular PyroTec PRO Automated Robotic Solution for endotoxin testing (Press release, Lifescience Newswire, APR 12, 2021, View Source [SID1234577978]). The new PyroWave Reader add-on has been designed specifically for use with the sustainable PyroGene Recombinant Factor C (rFC) Assay. This brings a third test type option to the platform, allowing QC microbiologists to choose the endotoxin test method best suited for their testing needs. The PyroTec PRO Solution, now compatible with Lonza’s PYROGENT-5000 Turbidimetric LAL (Limulus Amebocyte Lysate) Assay, Kinetic-QCL Chromogenic LAL Assay and the PyroGene rFC Assay, expands the options available for streamlined, automated endotoxin testing.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The PyroWave Reader add-on is built upon the original release of the PyroTec PRO Automated System that includes two absorbance readers for traditional LAL-based assays. Able to easily accommodate different assay types in the same run and powered by the world-class WinKQCL Endotoxin Analysis Software, this complete system further increases the efficiencies and data integrity gained from automated endotoxin testing.

The PyroGene rFC Assay is an animal-free method for endotoxin detection that works through a single enzymatic step. It has been shown to be equivalent to other photometric endotoxin methods that use LAL to detect endotoxins according to the parameters listed in the USP chapter <1225> "Validation of Compendial Procedures". These parameters include linearity, specificity, precision, accuracy, and limit of detection.

The need for accurate and dependable endotoxin testing technology continues to grow, especially with the pharmaceutical industry increasingly focusing on the development of innovative biotherapeutics that carry a higher risk of endotoxin contamination. Through process optimization and automation of routine manual tasks, the PyroTec PRO Automated Robotic Solution enables users to streamline and improve the performance of the QC laboratory, increasing lab efficiency and productivity. Automated endotoxin testing can also substantially reduce the potential for human error, enhancing the accuracy, reliability, and traceability of results.

On April 12, 2021 Recursion Pharmaceuticals, a Phase 2-ready biotech using AI to develop therapies for various indications, reported terms for its IPO on Monday (Press release, Recursion Pharmaceuticals, APR 12, 2021, View Source [SID1234577955]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The Salt Lake City, UT-based company plans to raise $306 million by offering 18 million shares at a price range of $16 to $18. Insiders Baillie Gifford and Mubadala Investment intend to purchase up to $125 million worth of shares in the offering. At the midpoint of the proposed range, Recursion Pharmaceuticals would command a market value of $3 billion.

Central to Recursion’s mission is the Recursion Operating System, which combines an advanced infrastructure layer to generate proprietary biological and chemical datasets, and the Recursion Map, a suite of custom software, algorithms, and machine learning tools that the company uses to explore foundational biology and navigate to new biological insights. While the company is advancing 37 programs, its most advanced programs include one candidate targeting oncology and three targeting rare genetic disorders, all of which are expected to enter Phase 2 or 2/3 trials within the next four to five quarters.

Recursion Pharmaceuticals was founded in 2013 and booked $4 million in revenue for the 12 months ended December 31, 2020. It plans to list on the Nasdaq under the symbol RXRX. Goldman Sachs, J.P. Morgan, BofA Securities, SVB Leerink, Allen & Company and KeyBanc Capital Markets are the joint bookrunners on the deal. It is expected to price during the week of April 12, 2021.

On April 12, 2021 Cardiff Oncology, Inc. (the "Company") Presented its corporate slide presentation (Presentation, Cardiff Oncology, APR 12, 2021, View Source [SID1234577946]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

On April 12, 2021 Treovir, an immuno-oncology company that is developing and plans to commercialize G207 for recurrent glioblastoma in children, reported that G207, an oncolytic HSV immunotherapy, was well tolerated with evidence of clinical effectiveness in a phase 1 study of 12 pediatric patients with recurrent high-grade glioma (Press release, Treovir, APR 12, 2021, View Source [SID1234577943]). Data from the phase 1 study (NCT02457845) are being presented by Gregory Friedman, M.D., professor in the Department of Pediatrics at the University of Alabama at Birmingham, during Week 1 of the virtual AACR (Free AACR Whitepaper) Annual Meeting 2021, held April 10-15. Data from this trial have been published in the New England Journal of Medicine.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

In the Phase 1 dose-escalation study, 12 pediatric patients 7 to 18 years of age with progressive high-grade glioma received an infusion of G207 alone or G207 in combination with radiation. No dose-limiting toxic effects or serious adverse events were attributed to G207 by the investigators and only 20 grade 1 adverse events were possibly related to G207. Radiographic, neuropathological, or clinical responses were seen in 11 patients. The median overall survival was 12.2 months (95% confidence interval, 8.0 to 16.4). The overall survival rate was more than double the typical survival rate for children with high-grade glioma. Some 36 percent of the patients thus far have survived longer than 18 months, surpassing the expected survival for newly diagnosed children with high-grade glioma. Additionally, G207 markedly increased the number of tumor-infiltrating lymphocytes for at least nine months after infusion effectively turning immunologically "cold" tumors "hot".

Gregory Friedman, M.D., Principal Investigator of the study, said, "This is the first study utilizing delivery of a viral immunotherapy directly into brain tumors in children and the results indicate that G207 can be delivered safely into tumors located in all areas of the cerebrum in children. The key findings thus far are that the approach is safe and well tolerated, and the preliminary evidence of efficacy is very promising."

G207 is an oncolytic HSV engineered to infect only tumor cells. When infused into a tumor, the virus enters the tumor cells and replicates and kills the cells. In the process, G207 releases viral progeny that infect and kill nearby tumor cells. Furthermore, as demonstrated in the Phase 1 study for the first time, G207 induces a strong local immune response to harness the body’s immune system to further fight against the tumor cells.

"We are enthusiastic that the Phase 1 results appear to support the use of G207 as a safe and potentially effective therapy to treat pediatric high-grade gliomas," said Michael Christini, CEO of Treovir. "There are no approved therapies to treat these types of lethal tumors and it is our goal to develop G207 for glioma and other childhood brain cancers."

In collaboration with Dr. Friedman and the Pediatric Brain Tumor Consortium, Treovir is in the late stages of planning its Phase 2 clinical trial for G207 in recurrent high grade glioma (NCT 04482933). The Phase 2 trial is expected to start later in 2021. Additionally, G207 is being studied at UAB and Children’s of Alabama in recurrent pediatric brain tumors, including medulloblastoma, which arise in the cerebellum, the most common location for pediatric tumors to arise. (NCT 03911388)

"It is our goal that the Phase 2 study will support market approval of G207 to treat pediatric recurrent high-grade gliomas and our company’s mission is clear: We want to commercialize G207 and provide hope to the children and families who currently have no effective therapeutic options," stated Mr. Christini.

Brain tumors are the most common solid tumor in children, and aggressive types like glioblastoma have an extremely low survival rate: as low as 10% five years after diagnosis. Malignant high-grade glioma accounts for 8 to 10% of pediatric brain tumors and survival rates have not improved in 30 years. The median life expectancy of recurrent high-grade glioma is only 5.6 months.

The study was supported by the US FDA Orphan Products Clinical Trials Grants Program, Cannonball Kids’ Cancer Foundation, the Rally Foundation for Childhood Cancer Research, Hyundai Hope on Wheels, St. Baldrick’s Foundation, and the Kaul Pediatric Research Institute. Dr. Friedman has no financial or equity interest in Treovir and was not paid by Treovir for the Phase 1 study.