On January 8, 2025 Myeloid Therapeutics, Inc. ("Myeloid"), a clinical-stage immunology company advancing RNA therapeutics to conquer cancer, reported its participation at the 43rd Annual JP Morgan Healthcare Conference, taking place January 13-16, 2025 (Press release, Myeloid Therapeutics, JAN 8, 2025, View Source [SID1234649521]).

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Daniel Getts, Ph.D., CEO of Myeloid, will present on Wednesday, January 15, 2025, at 8:30 am PT. Company management will also participate in one-on-one meetings with investors during the conference.

On January 8, 2025 Araris Biotech AG ("Araris"), a Swiss oncology biotech company developing next-generation antibody drug conjugates (ADCs), reported they have entered a Research Collaboration and Option to License Agreement ("RCO") under which Araris will use its proprietary linker-conjugation platform, AraLinQTM, to generate novel ADCs using antibodies against undisclosed targets provided by Chugai Pharmaceutical Co., Ltd. ("Chugai") (Press release, Araris Biotech, JAN 8, 2025, View Source [SID1234651283]).

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"We are excited to enter a collaboration with Chugai Pharmaceutical and look forward to working closely with the Chugai team and apply our ADC technology to develop next-generation ADCs with improved efficacy and tolerability," said Dr. Dragan Grabulovski, CEO and co-founder of Araris.

Dr. Philipp Spycher, CSO and co-founder of Araris added: "This second collaboration with a large pharmaceutical company is a testimony of the attractiveness of our highly differentiated ADC platform and its potential to generate innovative ADCs with excellent pharmacokinetic properties and wide therapeutic index, incorporating dual- or triple-warheads into one step on native antibodies, without any requirement of prior antibody engineering."

Under the terms of the RCO Agreement, Chugai will pay an upfront fee, fund all research activities and after exercising the option be solely responsible for the development, manufacturing and global commercialization activities. Upon achievement of certain development, regulatory and commercial milestones by Chugai after exercising the option, Araris will be eligible for potential milestone payments of approximately USD 780 million, plus royalties on net sales of products.

On January 8, 2025 Merck (NYSE: MRK), known as MSD outside of the United States and Canada, reported that the National Medical Products Administration (NMPA) of China approved GARDASIL [Human Papillomavirus Quadrivalent (Types 6, 11, 16, and 18) Vaccine, Recombinant] for use in males 9-26 years of age to help prevent certain HPV-related cancers and diseases (Press release, Merck & Co, JAN 8, 2025, View Source [SID1234649506]). The approval makes GARDASIL the first HPV vaccine approved for use in males in China. GARDASIL is now indicated in China to prevent anal cancers caused by HPV Types 16 and 18, genital warts (condyloma acuminata) caused by HPV Types 6 and 11, and the following precancerous or dysplastic lesions caused by HPV Types 6, 11, 16, and 18: grade 1, grade 2, and grade 3 anal intraepithelial neoplasia (AIN).

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"The approval of GARDASIL for use in males 9-26 years old in China is a significant step forward in advancing public health," said Joseph Romanelli, president, Human Health International, Merck. "Since first approval, our HPV vaccines have helped protect over 50 million females in China from certain HPV-related cancers and diseases. With this expanded approval, we look forward to helping protect this new population of Chinese males from certain HPV-related cancers and diseases."

Indications for GARDASIL1

GARDASIL is a vaccine indicated in females 9 through 45 years of age. GARDASIL is indicated for the prevention of cervical, vulvar, vaginal, and anal cancers caused by HPV Types 16 and 18, precancerous or dysplastic lesions caused by HPV Types 6, 11, 16, and 18, and for the prevention of genital warts caused by HPV Types 6 and 11.

GARDASIL is indicated in males 9 through 26 years of age. GARDASIL is indicated for the prevention of anal cancer caused by HPV Types 16 and 18, and precancerous or dysplastic lesions caused by HPV Types 6, 11, 16, and 18, and for the prevention of genital warts caused by HPV Types 6 and 11.

GARDASIL does not eliminate the necessity for vaccine recipients to undergo screening for cervical, vulvar, vaginal, and anal cancers as recommended by a health care provider.

GARDASIL has not been demonstrated to provide protection against diseases caused by:

– HPV types not covered by the vaccine

– HPV types to which a person has previously been exposed through sexual activity

Not all vulvar, vaginal, and anal cancers are caused by HPV, and GARDASIL protects only against those vulvar, vaginal, and anal cancers caused by HPV Types 6, 11, 16 and 18.

GARDASIL is not a treatment for external genital lesions; cervical, vulvar, vaginal, anal, oropharyngeal and other head and neck cancers; or cervical intraepithelial neoplasia (CIN), vulvar intraepithelial neoplasia (VIN), vaginal intraepithelial neoplasia (VaIN), or anal intraepithelial neoplasia (AIN).

Vaccination with GARDASIL may not result in protection in all vaccine recipients.

Select Safety Information for GARDASIL

GARDASIL is contraindicated in individuals with hypersensitivity, including severe allergic reactions to yeast, or after a previous dose of GARDASIL.

Because vaccinees may develop syncope, sometimes resulting in falling with injury, observation for 15 minutes after administration is recommended. Syncope, sometimes associated with tonic-clonic movements and other seizure-like activity, has been reported following HPV vaccination. When syncope is associated with tonic-clonic movements, the activity is usually transient and typically responds to restoring cerebral perfusion. Safety and effectiveness of GARDASIL have not been established in pregnant women. The most common (≥1.0%) adverse reactions were headache, fever, nausea, dizziness; and injection-site pain, swelling, erythema, pruritus, and bruising. The duration of immunity of GARDASIL has not been established.

Dosage and Administration

GARDASIL should be administered intramuscularly in the deltoid or anterolateral area of the thigh.

For GARDASIL, a complete vaccination regimen for individuals 9 through 26 years of age consists of 3 doses at the following schedule: 0, 2 months, 6 months.

On January 8, 2025 Annals of Oncology (IF: 56.7), a top oncology journal globally, reported remarkable long-term follow-up results of a phase 1b/2 clinical trial on Disitamab Vedotin (DV) (developed by Remegen Co., Ltd) combined with Toripalimab in treating locally advanced or metastatic urothelial carcinoma (la/mUC) (NCT04264936, study ID: RC48-C014) (Press release, RemeGen, JAN 8, 2025, View Source [SID1234649522]). This trial was supervised by Professor Jun Guo and Professor Xi’nan Sheng’s teams from Peking University Cancer Hospital.

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It is the first time that long-term follow-up data has been released for a HER2-targeted antibody-drug conjugate (ADC) and PD-1 inhibitor combination therapy in treating la/mUC, marking it a significant milestone. The nearly-three-year follow-up data revealed an objective response rate (ORR) of 73.2% and median overall survival (OS) of 33.1 months, superior to data published from any other prospective clinical studies on ADC plus PD-1 combination therapies for la/mUC.

New Treatment Options for Patients with La/mUC

UC is the sixth most common cancer worldwide. GLOBOCAN 2022 estimated the year 2021 saw 614,298 new cases and 220,596 deaths of UC. In recent years, the prognosis for patients with la/mUC has significantly improved with new drugs and combination therapies approved, among which ADCs demonstrated outstanding potential.

As a HER2-targeted ADC, DV has been approved in China for patients with HER2-overexpressing (defined as immunohistochemistry [IHC] test results of 2+ or 3+) la/mUC previously treated with platinum-containing chemotherapy. The approval is based on the pooled results of two studies (NCT03507166 and NCT03809013, study IDs: RC48-C005 and RC48-C009) where the ORR registered 50.5% and the median duration of response (DOR) registered 7.3 months.

Multiple clinical studies on la/mUCin recent years have confirmed the synergistic antitumor effects of ADC combined with immunotherapy. NCT04264936 offered stronger evidence as its long-term follow-up results published in the Annals of Oncology demonstrated the high response rate, significant survival benefits, and manageable safety profile of the DV and Toripalimab combination therapy.

DV Combined with Toripalimab: High Response Rate and Prolonged Survival

NCT04264936 is an open-label, multicenter, investigator-initiated phase 1b/2 clinical trial investigating the safety and efficacy of DV in combination with Toripalimab for the treatment of patients with HER2-expressing la/mUC. The dose-escalation study (phase 1b) assessed two dose levels of DV (1.5 and 2.0 mg/kg) combined with Toripalimab (3.0 mg/kg) to determine the recommended phase 2 dose which was then evaluated in the dose-expansion stage (phase 2).

From August 2020 to December 2021, 41 patients were enrolled with a median age of 66 years. 53.7% of the participants were male, 70.7% had an ECOG performance status score of 1, 17 (41.5%) had lung metastasis, and 10 (24.4%) had liver metastasis.

As of March 1, 2024, among all participants, the ORR was 73.2% with 4 (9.8%) achieving complete response and 26 (63.4%) achieving partial response, the DCR was 90.2%, the median progression-free survival (PFS) was 9.3 months, the median DOR was 8.6 months, the median OS was 33.1 months and the 36-month OS rate was 49.2%.

Subgroup analysis revealed ORR benefits across all subgroups regardless of the number of prior lines of systemic treatments, HER2 expression (IHC 1+/2+/3+), and PD-L1 expression status. The ORRs for chemotherapy-naïve patients and those who progressed on platinum-based chemotherapy were 76.0% (19/25) and 68.8% (11/16), respectively. The ORRs for patients with HER2 IHC 3+, 2+, 1+, or 0 were 80.0%, 84.2%, 64.3%, and 33.3%, respectively. Compared with the three HER2 IHC 0 participants (one of whom achieved partial response), those with HER2 expression (IHC 1+/2+/3+) had a higher ORR (76.3% vs 33.3%) and longer PFS (median PFS: 9.3 vs 1.7 months).

In summary, the DV and Toripalimab combination therapy has preliminarily demonstrated promising efficacy and manageable safety profile among patients with la/mUC, wherein those with HER2 expression (IHC 1+/2+/3+) achieved high response rates and long-term survival benefits. These findings support the further exploration and validation of the benefits of DV combined with PD-1 inhibitors in treating la/mUC.

On January 8, 2025 Moleculin Biotech, Inc., (Nasdaq: MBRX) ("Moleculin" or the "Company"), a late-stage pharmaceutical company with a broad portfolio of drug candidates targeting hard-to-treat tumors and viruses, reported a business outlook and outlined expected upcoming milestones (Press release, Moleculin, JAN 8, 2025, View Source [SID1234649507]).

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"We have positioned Moleculin to achieve value-driving milestones through the next several years, starting with the imminent beginning of enrollment for MIRACLE and the first interim read-out from that study later this year. Having a readout in the first year of a Phase 3 approval trial is, we believe, exceptional. Prior data support our belief that Annamycin is a potential game-changing asset for the treatment of AML, and we believe it can lead to significant value creation for Moleculin as we aggressively move forward with our clinical development plan. Not only has Annamycin appeared to be safer and more effective than currently prescribed anthracyclines, but we believe the recently announced preclinical data demonstrating significant activity of Annamycin in a Venetoclax-resistant AML model underscores the potential that Annamycin has ‘pipeline in a product’ potential and represents a much-needed treatment option for other patients who otherwise have very poor outcomes. Annamycin’s performance in Phase 2 has outperformed the response rates seen in billion-dollar assets in the AML space and AML remains among the highest unmet needs in healthcare. Simply stated, the bar for approval is low, and the potential reward for shareholders is substantial and we have never been more excited about the prospects for Annamycin," commented Walter Klemp, Chairman and CEO of Moleculin.

Clinical Development Update

Relapsed or Refractory Acute Myeloid Leukemia (AML)

The Company is currently advancing the development of Annamycin in combination with Cytarabine (also known as "Ara-C" and for which the combination of Annamycin and Ara-C is referred to as "AnnAraC") to a Phase 3 pivotal trial for the treatment of AML patients who are refractory to or relapsed after induction therapy (R/R AML). This Phase 3 "MIRACLE" trial (derived from Moleculin R/R AML AnnAraC Clinical Evaluation) will be global, including sites in the US, Europe and the Middle East.

The MIRACLE study, subject to appropriate future filings with and potential additional feedback from the FDA and their foreign equivalents, utilizes an adaptive design whereby the first 75 to 90 subjects will be randomized (1:1:1) in Part A of the trial to receive high dose cytarabine (HiDAC) combined with either placebo, 190 mg/m2 of Annamycin, or 230 mg/m2 of Annamycin, which Annamycin doses were specifically recommended by the FDA in the Company’s end of Phase 1B/2 meeting. The amended protocol allows for the unblinding of preliminary primary efficacy data (CR) and safety/tolerability of the three arms at 45 subjects, in addition to the conclusion of Part A (at 75 to 90 subjects). This early unblinding will yield 30 subjects with Annamycin (190mg/m2 and 230/m2) and HiDAC and 15 subjects with just HiDAC. The Company expects to reach the first unblinding (45 subjects) in the second half of 2025, in addition to the second unblinding, which is expected in the first half of 2026. This accelerated estimated timeline is due to the positive response the Company received in meetings during December with potential investigators regarding recruitment for the trial.

For Part B of the trial, approximately 244 additional subjects will be randomized to receive either HiDAC plus placebo or HiDAC plus the optimum dose of Annamycin (randomized 1:1). The selection of the optimum dose will be based on the overall balance of safety, pharmacokinetics and efficacy, consistent with the FDA’s new Project Optimus initiative. This increase from 240 to 244 subjects represents the statistical "cost" of the additional interim unblinding.

Important Development Program Highlights

Phase 3 MIRACLE trial builds off of positive results of Phase 1B/2 clinical trial evaluating AnnAraC for the treatment of subjects with AML as both first line therapy and for subjects who are refractory to or relapsed after induction therapy (MB-106):
Complete Remission (CR) rate was 50% and CRc (CR plus CRi (CR with incomplete recovery of blood counts)) rate was 60% for 2nd line subjects (n=10);
Median durability: ~8 months and increasing;
Median overall survival in MB-106 was 9.1 months for 0-6 prior lines of therapies (n=22) and 11.6 months for 2nd line subjects (n=10); and
Strong efficacy signal even where a prior venetoclax combination therapy has failed.
Received US Institutional Review Board (IRB) approval;
Leveraging expertise of Catalyst Clinical Research, a leading contract research organization (CRO), with our recent engagement with them to help conduct the MIRACLE trial; and
Accelerated planned unblinded data readout to H2 2025.
Expected Milestones for Annamycin AML Development Program

1Q – 3Q 2025 – Update on MIRACLE trial site selection/approvals by countries
1Q 2025 – First subject enrolled and treated in MIRACLE trial
2025 – Recruitment update for MIRACLE trial
2H 2025 – Data readout (n=45) unblinded efficacy/safety review
2H 2025 – 2026 – Impact of data readout (n=45) on regulatory pathway; Recruitment update
1H 2026 – Interim efficacy and safety data (n=~75-90) unblinded and Optimum Dose set for MIRACLE trial
2027 – Begin enrollment of 3rd line subjects in MIRACLE2
2027 – Enrollment ends in 2nd line subjects
2028 – Primary efficacy data for 2nd line subjects in MIRACLE
2028 – Begin submission of a Rolling New Drug Application (NDA) for the treatment of R/R AML for accelerated approval on primary endpoint of CR from MIRACLE
Soft Tissue Sarcoma (STS) Lung Metastases

As previously announced, the Company completed enrollment in the Phase 2 portion of its U.S. Phase 1B/2 clinical trial evaluating Annamycin as monotherapy for the treatment of soft tissue sarcoma lung metastases. Subjects who had stable disease at the time of study discontinuation were followed for progression free response and overall survival. The study database is locked, and the clinical study report is being written and should be completed in early 2025 and will be released in detail at that time.

Expected Milestones for Annamycin STS Lung Mets Development Program

2025 – Final MB-107 data readout
2025 – Identify next phase of development / pivotal IIT (investigator-initiated-trial) program
Annamycin currently has Fast Track Status and Orphan Drug Designation from the FDA for the treatment of relapsed or refractory acute myeloid leukemia, in addition to Orphan Drug Designation for the treatment of soft tissue sarcoma. Furthermore, Annamycin has Orphan Drug Designation for the treatment of relapsed or refractory acute myeloid leukemia from the European Medicines Agency (EMA).