On April 25, 2022 BioVaxys Technology Corp. (CSE: BIOV, FRA:5LB,OTCQB:BVAXF) ("BioVaxys" or "Company"), reported that it has entered into an agreement with the Deaconess Research Institute ("DRI") to supply BioVaxys with surgically debulked tumors from Stage III/Stage IV ovarian cancer patients undergoing treatment at Deaconess Health System ("Deaconess") (Press release, BioVaxys Technology, APR 25, 2022, View Source [SID1234614613]). DRI, based in Evansville, Indiana, is the clinical studies arm of Deaconess, a premier regional provider of health care services in the United States. Access to ovarian cancer tumor cells is a critical step enabling BioVaxys to validate the manufacturing process for BVX-0918, the Company’s autologous haptenized tumor cell vaccine for late-stage ovarian cancer.

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The standard of care for late-stage ovarian cancer often involves surgically debulking of the tumor mass. The debulked tumor cells will be used to test and validate the tumor collection protocol, cryopackaging, cryopreservation, and supply chain logistics for BVX-0918 bioproduction. Following shipment to BioElpida s.a. ("BioElpida"), the Company’s bioproduction partner in Lyon, France, the tumor cells will then be used for process testing and manufacturing "dry runs" of BVX-0918, a major step leading to the completion of Good Manufacturing Process ("GMP") production, a requirement for the planned Clinical Trial Application ("CTA") with the European Medicines Agency ("EMA"). BioVaxys, together with its EU partner, ProCare Health of Barcelona, Spain, is preparing to launch a Phase I clinical study for BVX-0918 later this year.

BioElpida developed various tests and validation procedures needed to support GMP manufacturing, such as sterility testing for transport, hapten fixation, and cryopreservation solutions, as well as antibody generation, bioburden screening of the haptens, and endotoxin assays; access to debulked tumor means that BioElpida will begin the final stages of the vaccine production protocol and GMP validation. BioVaxys and BioElpida have also designed and fabricated a specialized shipping package which would cryopreserve the tumor sample while in transit from any hospital site to the BioElpida site.

BioVaxys President & Chief Operating Officer Kenneth Kovan says, "Having complied with the regulatory oversight involved in obtaining waste tumor samples, BioVaxys is now able to provide BioElpida with the materials required for finalizing the vaccine production protocol and performing process validation in the lead up to our planned CTA submission to the European regulator."

BioVaxys’ vaccine platform is based on the established immunological concept that modifying surface proteins—whether they are viral or tumor—with haptens makes them more visible to the immune system. This process of haptenization "teaches" a patient’s immune system to recognize and make target proteins more "visible" as foreign, thereby stimulating a T-cell mediated immune response. BioVaxys’ cancer vaccines are created by extracting a patient’s own (autologous) cancer cells, chemically linking with a hapten, and re-injecting them into the patient to induce an immune response to proteins which are otherwise not immunogenic. Haptenization is a well-known and well-studied immunotherapeutic approach to cancer immunotherapy and has been clinically evaluated in both regional and disseminated metastatic tumors.

A first generation single-hapten vaccine invented by BioVaxys Co-Founder and Chief Medical Officer David Berd, MD, achieved positive immunological and clinical results in Phase I and Phase II human trials in over 600 patients with different tumor types, as well as having no observed toxicity in years of clinical study. These studies were conducted under an FDA-reviewed IND. A first generation autologous, haptenized vaccine was also tested by Dr. Berd in women with advanced ovarian cancer who had ceased to respond to conventional chemotherapy. The results were encouraging: In 24 patients, the median overall survival was 25.4 months with a range of 4.5-57.4 months; 8 patients survived for more than 2 years. BioVaxys has enhanced the first-generation approach by utilizing two haptens ("bi-haptenization"), which the Company believes will yield superior results.

On April 25, 2022 Shuwen Biotech, an integrated in vitro diagnostic company with focuses on women’s health, reported that it has obtained a CE mark for its quantitative qPCR kit for measuring ERBB2 gene expression in breast cancer tissue (CercaTestTM ERBB2 Assay) (Press release, Shuwen Biotech, APR 25, 2022, View Source [SID1234613090]).

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Immunohistochemistry (IHC) analysis of HER2 protein expression and fluorescent in situ hybridization (FISH) have been used to characterize HER2 status in breast cancer to guide anti-HER2 therapies. However, studies have shown that current standard qualitative HER2 IHC assay is insufficient especially in the low range (0 and 1+) of HER2 expression. In particular, a recent study showed the use of HER2 IHC assays as a companion diagnostic test for the new drug trastuzumab deruxtecan may result in misassignment of patients for treatment.1 In view of the direct link between gene amplification, RNA transcription, and protein expression, experts have suggested measures of messenger RNA as potentially a more reproducible quantitative assay.2

CercaTestTM ERBB2 Assay is a quantitative real-time PCR assay for accurate measurement of ERBB2 gene expression in breast cancer tissue slices. Contiguous quantitative PCR cycle numbers may be generated from different FFPE tissue samples with the same IHC scores (such as HER2 0 or 1+), allowing delineation of different ERBB2 mRNA expression levels in full spectrum. The assay is run on commonly available PCR platforms, thus obviating the need for pathology readings and scorings and avoiding human subjectivity and errors.

"With CercaTestTM ERBB2 Assay and MammaTyper, we have shown that qPCR analysis of ERBB2 mRNA in our assays exhibits high inter- and intra-laboratory reproducibility and good concordance with HER2 IHC scores by experienced pathologists, even in HER2 low expression samples.3, 4 Coupled with our RNXtract Nucleic Acid Extraction Kit and RNXtract Automated Purification System, CercaTestTM ERBB2 Assay provides simple, fast, reproducible and accurate assessment of ERBB2 mRNA levels in tissue samples including HER2-low breast cancer samples. We believe our CercaTestTM ERBB2 Assay and MammaTyper potentially offer superior companion diagnostics for anti-HER2 therapies especially the newer generation of anti-Her2 ADC drugs," commented Barclay Li, Chief Scientific Officer of Shuwen Biotech. Both CercaTestTM ERBB2 Assay and MammaTyper are commercially available worldwide through Cerca Biotech GmbH, a European subsidiary of Shuwen Biotech.

1. Fernandez et al., Examination of Low ERBB2 Protein Expression in Breast Cancer Tissue,
JAMA Oncol. 2022 Apr 1; 8(4):1-4. doi: 10.1001/jamaoncol.2021.7239.
2. Allison et al., ERBB2-Low Breast Cancer-Is It a Fact or Fiction, and Do We Have the Right Assay? JAMA Oncol. 2022 Apr 1; 8(4):610-611. doi: 10.1001/jamaoncol.2021.7082.
3. Wirtz et al., Biological Subtyping of Early Breast Cancer: A Study Comparing RT-qPCR with Immunohistochemistry. Breast Cancer Res Treat. 2016 May 24; 157:437–446. Doi: 10.1007/s10549-016-3835-7
4. Varga et al., An International Reproducibility Study Validating Quantitative Determination of ERBB2, ESR1, PGR, and MKI67 mRNA in Breast Cancer Using MammaTyper, Breast Cancer Res. 2017 May 11; 19(1):55. doi: 10.1186/s13058-017-0848-z.

On April 25, 2022 Knight Therapeutics Inc. (TSX: GUD) ("Knight"), a leading pan-American (ex-US) specialty pharmaceutical company, reported that Samira Sakhia, President and Chief Executive Officer, is scheduled to present a corporate update at the Bloom Burton & Co. Healthcare Investor Conference on Monday, May 2, 2022 at 10:30 a.m. ET at the Metro Toronto Convention Centre in Toronto (Press release, Knight Therapeutics, APR 25, 2022, View Source [SID1234612977]). A copy of the presentation will be available at www.gud-knight.com.

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On April 25, 2022 Nkarta, Inc. (Nasdaq: NKTX), a biopharmaceutical company developing engineered natural killer cell therapies to treat cancer, reported the pricing of an underwritten public offering of 13,333,334 shares of its common stock at a price to the public of $15.00 per share (Press release, Nkarta, APR 25, 2022, View Source [SID1234612946]). The Company has granted the underwriters a 30-day option to purchase up to 2,000,000 additional shares of its common stock at the public offering price, less underwriting discounts and commissions. All shares in the offering are to be issued and sold by Nkarta.

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The offering is expected to close on or about April 28, 2022, subject to customary closing conditions.

Gross proceeds to Nkarta from this offering are approximately $200 million, before deducting underwriting discounts and commissions and offering expenses and assuming no exercise of the underwriters’ option to purchase additional shares. Nkarta intends to use the net proceeds from the offering to fund the continued clinical development of NKX101 and NKX019, preclinical studies for research stage programs and the continued buildout of internal manufacturing capabilities, and for working capital and for general corporate purposes.

Cowen, SVB Securities, Evercore ISI and Stifel are acting as joint book-running managers for the offering.

The offering was conducted pursuant to a shelf registration statement (File No. 333-258766), which was filed with the Securities and Exchange Commission ("SEC") on August 12, 2021 and declared effective by the SEC on September 2, 2021. The offering was made only by means of a prospectus supplement and accompanying prospectus describing the terms of the offering. Copies of the final prospectus supplement and the accompanying prospectus relating to this offering may be obtained by contacting the following: Cowen and Company, LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, Attention: Prospectus Department, by telephone at (833) 297-2926, or by email at [email protected]; SVB Securities LLC, Attention: Syndicate Department, 53 State Street, 40th Floor, Boston, MA 02109, by telephone at (800) 808-7525, ext. 6105, or by email at [email protected]; Evercore Group L.L.C., Attention: Equity Capital Markets, 55 East 52nd Street, 35th Floor, New York, NY 10055, by telephone at (888) 474-0200, or by email at [email protected]; and Stifel, Nicolaus & Company, Incorporated, Attention: Prospectus Department, One Montgomery Street, Suite 3700, San Francisco, CA 94104 or by telephone at (415) 364-2720 or by email at [email protected]. These documents may also be obtained for free on the SEC’s website located at View Source The final terms of the offering will be disclosed in a final prospectus supplement to be filed with the SEC.

This press release does not constitute an offer to sell or the solicitation of an offer to buy the securities described herein, nor shall there be any offer, solicitation or sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or jurisdiction.

On April 25, 2022 Hoffmann-La Roche reported its first quarter results 2022 (Presentation, Hoffmann-La Roche, APR 25, 2022, View Source [SID1234612941]).

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