On December 2, 2021 Onconova Therapeutics, Inc. (NASDAQ: ONTX), a clinical-stage biopharmaceutical company focused on discovering and developing novel products for patients with cancer, reported that early preliminary data from an investigator-initiated Phase 2 open label trial of rigosertib monotherapy in advanced squamous cell carcinoma complicating recessive dystrophic epidermolysis bullosa (RDEB-associated SCC) were presented at the Austrian Society of Dermatology and Venerology Annual Conference 2021, which took place from November 25 – 27, 2021 (Press release, Onconova, DEC 2, 2021, View Source [SID1234596407]).

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RDEB is an ultra-rare condition caused by a lack of type VII collagen protein expression. Type VII collagen protein is responsible for anchoring the skin’s inner layer to its outer layer, and its absence leads to extreme skin fragility and chronic wound formation in RDEB patients. Over time, many of these patients develop squamous cell carcinomas (SCCs) that typically arise in areas of chronic skin wounding and inflammation. Preclinical investigations demonstrated overexpression of polo like kinase 1 (PLK1) in RDEB-associated SCC tumor cells. These tumors show a highly aggressive, early metastasizing course, making them the primary cause of death for these patients, with a cumulative risk of death of 70% and 78.7% by age 45 and 55, respectively1,2. These neoplasms show limited response rates of mostly short duration to conventional chemo- and radiotherapy as well as targeted therapy with epidermal growth factor and tyrosine kinase inhibitors1,3.

Data from the recent presentation are from a 24-year-old RDEB patient with a history of multiple, unresectable SCCs that were unresponsive to prior treatments including cemiplimab. Results showed that intravenously administered rigosertib had an acceptable safety profile and that the patient experienced sustained clinical and histological remission of all target lesions without signs of metastatic disease following 13 treatment cycles. The patient remains on study and the trial remains ongoing. The enrollment of additional patients is anticipated at sites in Salzburg, Austria; London, UK; and Philadelphia, Pennsylvania.

"Though the trial’s currently available data are from only a single patient, they represent an exciting and powerful finding that warrants further study," said Andrew South Ph.D., Associate Professor, Department of Dermatology & Cutaneous Biology, Thomas Jefferson University. "RDEB-associated SCC is an indication with an extremely high unmet medical need, as it is invariably fatal with treatment options that have so far yielded disappointing results. The data generated in preclinical models suggesting rigosertib’s robust activity against PLK1 have now been confirmed in the clinic and suggest that rigosertib may play a role in other more common cancers driven by PLK1."

The physicians caring for the patient, Dr. Bauer, Principal Investigator, and Dr. Laimer, Sponsor Medical Expert of the trial, added in a joint statement, "To see a complete response in a patient that has failed multiple prior therapies is highly encouraging and, together with preclinical data, suggests that rigosertib’s ability to inhibit PLK1 may position it as a novel treatment option that can significantly improve upon the current standard-of-care. We look forward to the further evaluation of this hypothesis through the continued advancement of the trial."

A copy of the poster, titled "Rigosertib for locally advanced/metastatic EB-associated SCC," is available on the "Scientific Presentations" section of the Onconova website.

References

Mellerio et al. Br J Dermatol. 2016 Jan; 174(1):56-67. doi: 10.1111/bjd.14104.
Fine et al. J Am Acad Dermatol. 2009 Feb; 60(2):203-11. doi: 10.1016/j.jaad.2008.09.035.
Stratigos et al. Eur J Cancer. 2020 Mar;128:83-102. doi: 10.1016/j.ejca.2020.01.008.

On December 2, 2021 ImmunoGen Inc. (Nasdaq: IMGN), a leader in the expanding field of antibody-drug conjugates (ADCs) for the treatment of cancer, reported the pricing of an underwritten public offering of 11,636,364 shares of its common stock at a price of $6.60 per share, before underwriting discounts and commissions, and to certain investors in lieu of common stock, pre-funded warrants to purchase up to an aggregate of 27,363,636 shares of its common stock at a price of $6.59, which represents the per share public offering price for the common stock less the $0.01 per share exercise price for each such pre-funded warrant (Press release, ImmunoGen, DEC 2, 2021, View Source [SID1234596389]). The offering is expected to close on or about December 6, 2021, subject to satisfaction of customary closing conditions. ImmunoGen also granted the underwriters a 30-day option to purchase up to an additional 5,850,000 shares of its common stock at the public offering price, less underwriting discounts and commissions. All of the shares of common stock and pre-funded warrants in the offering are to be sold by ImmunoGen.

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ImmunoGen anticipates the total gross proceeds from the offering (before deducting the underwriting discounts and estimated offering expenses) will be $257.1 million, excluding any exercise of the underwriters’ option to purchase additional shares.

ImmunoGen intends to use the net proceeds of the offering to fund its operations, including, but not limited to, commercialization activities, clinical trial activities, supply of drug product, business development activities, capital expenditures, and working capital.

Jefferies, Cowen, and Guggenheim Securities are acting as joint book-running managers for the proposed offering. Canaccord Genuity is acting as lead manager for the proposed offering.

The securities described above are being offered by ImmunoGen pursuant to a shelf registration statement that was previously filed with the Securities and Exchange Commission (SEC) and became effective upon filing. This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities in this offering, nor shall there be any sale of these securities in any state or other 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 other jurisdiction. A preliminary prospectus supplement and accompanying prospectus relating to the offering was filed with the SEC and is available on the SEC’s website at www.sec.gov. Copies of the final prospectus supplement and the accompanying prospectus relating to this offering may be obtained by contacting Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, by e-mail at [email protected] or by telephone at (877) 821-7388; Cowen and Company, LLC c/o Broadridge Financial Solutions, Attention: Prospectus Department, 1155 Long Island Avenue, Edgewood, NY,11717, by email at [email protected] or by telephone at (833) 297-2926; or Guggenheim Securities, LLC, Attention: Equity Syndicate Department, 330 Madison Avenue, 8th Floor, New York, NY 10017, or by email at [email protected] or by telephone at (212) 518-9544.

On December 2, 2021 Merus N.V. (Nasdaq: MRUS) ("Merus", "the Company", "we", or "our"), a clinical-stage oncology company developing innovative, full-length multispecific antibodies (Biclonics and Triclonics), reported the publication of the abstract highlighting interim data, as of a July 14, 2021 cutoff, from the phase 1/2 trial of bispecific antibody MCLA-145 in patients with solid tumors (Press release, Merus, DEC 2, 2021, View Source [SID1234596408]). The e-poster will be presented at the ESMO (Free ESMO Whitepaper) Immuno-Oncology (ESMO IO) Congress 2021 being held December 8-11, 2021 in Geneva, Switzerland.

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Presentation Details:

Title: Phase I Dose Escalation Study of MCLA-145, a Bispecific Antibody Targeting CD137 and PD-L1 in Solid Tumors
Poster #: 136P

The e-poster will be available on the virtual platform, in the e-poster section as of Monday, December 6 at 6:00 am ET and on-site at the e-Poster stations starting on Wednesday, December 8. The poster will also be available on the Merus website.

The phase 1, open-label, single-agent clinical trial of MCLA-145 is ongoing. The trial consists of a dose escalation phase, followed by a planned dose expansion phase. MCLA-145 is the first drug candidate co-developed under Merus’ global collaboration and license agreement with Incyte, which permits the development and commercialization of up to 11 bispecific and monospecific antibodies from the Merus Biclonics platform. Merus retains full rights to develop and commercialize MCLA-145, if approved, in the United States; and Incyte holds full rights to develop and commercialize MCLA-145 outside the United States.

About MCLA-145
Discovered through an unbiased functional screening of multiple immunomodulatory target combinations, MCLA-145 is a Biclonics T-cell agonist that binds with high affinity and specificity to human PD-L1 and CD137 in preclinical models. The unique immunostimulatory profile of MCLA-145 derives from the potential to potently activate immune effector cells in the context of the tumor microenvironment while simultaneously blocking inhibitory signals in the same immune cell population.

On December 2, 2021 Immutep Limited (ASX: IMM; NASDAQ: IMMP) ("Immutep" or "the Company"), a biotechnology company developing novel LAG-3 related immunotherapy treatments for cancer and autoimmune disease, reported the first five patients have been treated in the INSIGHT-003 study (Press release, Immutep, DEC 2, 2021, View Source [SID1234596428]).

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No additional safety signals have been observed in the study which is the first time a triple combination therapy consisting of eftilagimod alpha ("efti") and an existing approved standard of care combination of chemotherapy (carboplatin) and an anti-PD-1 therapy has been administered.

Lead investigator, Prof. Dr. Salah-Eddin Al-Batran of the Institute of Clinical Cancer Research IKF said: "The INSIGHT-003 study has commenced well. We are very pleased with the safety of the triple combination so far and all patients are still participating in the study. This is important as it is the first time patients have received a triple combination therapy with efti. Patient recruitment is advancing in line with our projections."

INSIGHT-003 is evaluating a triple combination therapy consisting of efti in conjunction with an existing approved standard of care combination of chemotherapy and anti-PD-1 therapy. The study will continue to recruit up to 20 patients with various solid tumours and additional results are expected in calendar year 2022.

About INSIGHT-003

INSIGHT-003 is an investigator-initiated study conducted by the Institute of Clinical Cancer Research IKF at Krankenhaus Nordwest in Frankfurt. It is being run as the third arm (Stratum C) of the ongoing Phase I INSIGHT trial with Prof. Dr. Salah-Eddin Al-Batran as lead investigator. The study is evaluating a triple combination therapy consisting of efti in conjunction with an existing approved standard of care combination of chemotherapy (carboplatin) and anti-PD-1 therapy.

Up to 20 patients with solid tumours will be recruited to participate in the trial. Patients will receive 30 mg subcutaneous doses of efti every two weeks in conjunction with standard of care chemotherapy plus anti-PD-1 therapy. The trial will assess the safety, tolerability and initial efficacy of the combination.

On December 2, 2021 EOM Pharmaceuticals, Inc. ("EOM"), a privately held, clinical-stage pharmaceutical company, and ImmunoCellular Therapeutics, Ltd. (OTC: IMUC) ("ImmunoCellular") reported that the companies have entered into and closed on a merger agreement pursuant to which the shareholders of EOM are now the majority shareholders of the combined company (Press release, EOM Pharmaceuticals, DEC 2, 2021, View Source [SID1234618848]). The merger will create a public company that will continue EOM’s focus on advancing novel immunomodulatory and retinal disease drug agents to address a range of inflammatory, viral, retinal, and other diseases. ImmunoCellular will be renamed EOM Pharmaceuticals Holdings, Inc. Pending the assignment of a new ticker symbol, EOM Pharmaceuticals’ Common Stock will continue to be quoted on the OTC Markets under the ticker symbol "IMUC." EOM may consider in the future changing the principal listing of the Company Common Stock to a national exchange, assuming it will then meet the relevant listing requirements.

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The combined company’s two pipeline assets are EOM613 and EOM147.

• EOM613 is an investigational peptide-nucleic acid solution believed to have both antiinflammatory and pro-inflammatory broad-spectrum cytokine effects. Patients are currently enrolled in R 1 : RESCUE, a Phase 1/2a open-label clinical study in Brazil evaluating EOM613 treatment in severe hospitalized COVID-19 patients with "cytokine storm" immune responses. EOM expects to announce data from this trial in first quarter 2022. Further clinical development of EOM613 includes planning a Phase 2a multi-center trial for cancer cachexia in the U.S. and initiating exploratory trials for rheumatoid arthritis.

• EOM147 is an investigational, reformulated broad-spectrum aminosterol with a unique intracellular mechanism for the treatment of retinal diseases. EOM147 affects multiple angiogenic growth factors such as VEGF, PdGF, and bFGF. This mechanism of action is uniquely differentiated from other retinal therapies that are only anti-VEGF and administered as an intraocular injection. The novel formulation, administered as an eye drop, represents a potential breakthrough that does not require intraocular injection. Planning is underway for Phase 2 ophthalmic trials for macular edema in patients with diabetic retinopathy and wet age-related macular degeneration (wet-AMD).

EOM Founder, Board Chairman, and Chief Operating Officer Eli Goldberger said, "EOM’s merger with ImmunoCellular provides the resources necessary to advance our lead program, EOM613, as a potential treatment for COVID-19, as well as support the development of both EOM613 and EOM147. We look 2 forward to advancing our pipeline assets and delivering value to all our stakeholders, including patients, the scientific and medical community, and our stockholders."

"COVID-19 continues to pose a grave threat to millions of people worldwide and to challenge the medical and scientific community as it seeks to understand and treat the underlying causes and symptoms of this devastating disease," said EOM Chief Executive Officer and Director Irach Taraporewala, Ph.D. "We are grateful to the investigators and patients in Brazil who are currently participating in our EOM613 clinical trial and look forward to reporting initial results in early 2022."

"After an extensive review of strategic options for ImmunoCellular, we are pleased to announce the merger with EOM," said Gary S. Titus, ImmunoCellular’s Chairman of the Board. "We believe EOM’s focus on advancing novel immunomodulatory and retinal disease agents addressing unmet medical needs, as well as its experienced management team and board of directors, represent a potentially meaningful opportunity for stockholders in the newly combined company to realize long-term value."

About the Merger Pursuant to the merger agreement, EOM shareholders have exchanged all of their EOM common stock for newly issued shares of ImmunoCellular common and Series C convertible preferred stock. Postmerger, ImmunoCellular’s then-current equity holders will own approximately 3.5% and the former EOM equity holders will own approximately 96.5% percent of ImmunoCellular’s common stock, calculated on a fully diluted basis. Effective with the merger, all existing officers and directors of EOM have assumed their same positions in the new company and all existing officers and directors of ImmunoCellular have resigned. The transaction has been unanimously approved by the board of directors of both companies. EOM Pharmaceuticals Holdings, Inc. will be headquartered in Montvale, NJ. Bridgeway Capital Partners and its affiliates served as exclusive financial advisor to EOM on the transaction.

Management and Organization

The new senior leadership team at EOM Pharmaceuticals Holdings, Inc. includes Chief Executive Officer Irach Taraporewala, Ph.D.; EOM Founder, Board Chairman, and Chief Operating Officer Eli Goldberger; EOM Co-founder, Chief Scientific Officer and Medical Director Shalom Z. Hirschman, M.D; Wayne I. Danson, Chief Financial Officer and Treasurer; and Scientific Advisor and Chair of the Scientific Advisory Board, Frank L. Douglas, Ph.D., M.D.