ONC201 Trial Begins for Endometrial and Breast Cancer

On April 5, 2018 Oncoceutics, Inc. reported that the first patient has been treated in a clinical trial of ONC201 for patients with certain types of advanced endometrial and breast cancer (Press release, Oncoceutics, APR 5, 2018, View Source [SID1234558370]). The Phase II trial is led by Alexandra Zimmer, MD, Assistant Research Physician at the Women’s Malignancies Branch at the National Cancer Institute (NCI) Center for Cancer Research, part of the National Institutes of Health (NIH). The study will enroll up to 94 adult patients using ONC201 as a single-agent and will require tumor biopsies to enable direct evaluation of the activity of ONC201 within the tumor (Trials.cancer.gov Identifier#NCT03394027).

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Early results from ongoing clinical trials with ONC201 in high grade gliomas has shown promising single-agent activity that is related to the ability to target dopamine receptors. This study will extend the evaluation of ONC201 beyond glioma to include additional tumor types. This is the first clinical trial to launch out of a consortium of multiple investigators across different divisions at the NIH who are working with Oncoceutics to create, understand, and translate its novel class of therapies called imipridones to address unmet medical needs in oncology.

Endometrial and breast cancers have emerged as tumors that are sensitive to ONC201 in preclinical models through unique mechanisms of action that will be investigated in this clinical trial. Preclinical findings from a team of NCI investigators led by Stan Lipkowitz, MD, PhD, Chief of the Women’s Malignancies Branch in the NCI’s Center for Cancer Research, have shown that ONC201 has unique deleterious effects on the mitochondria of breast cancer cells. These findings are described in a recent publication (Greer et al., Oncotarget, In Press). This Phase II study continues the effort to understand the mechanism of ONC201, and to provide therapies to patients with metastatic breast cancer that are in need of new treatments.

Independent work led by Victoria Bae-Jump, MD, PhD, at UNC Lineberger Comprehensive Cancer Center, has found that dysregulated expression of dopamine receptors targeted by ONC201 induce tumor cell death in endometrial cancer. These findings were disclosed as an oral presentation at the recent annual meeting of the Society of Gynecological Oncology meeting in New Orleans.

"Unlike many other cancers, endometrial cancer has not gained targeted therapy treatment options despite the clear need for patients who have failed chemotherapy," said Dr. Bae-Jump. "Our recent work shows that endometrial cancer cells harbor altered expression of dopamine receptors that can be targeted by ONC201, creating the potential for an actionable molecular target for this disease."

Oncolytics Biotech® to Present at the Microcap Conference

On April 5, 2018 Oncolytics Biotech Inc. (TSX: ONC) (OTCQX: ONCYF), a biotech company developing REOLYSIN (pelareorep), an intravenously delivered immuno-oncolytic virus creating an inflamed phenotype, reported that it will be presenting at the MicroCap Conference, being held at the Essex House in New York City on April 9 – 10, 2018 (Press release, Oncolytics Biotech, APRIL 5 2018, View Source [SID1234525207]). The Company’s presentation will be on April 10th at 8:30 am ET.

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Dr. Matt Coffey, President & Chief Executive Officer, will present a corporate overview, focusing on pelareorep’s mechanism of action and the Company’s lead program in HR+/HER2- metastatic breast cancer. The presentation will also describe Oncolytics’ pipeline expansion programs, focusing on combination therapies of REOLYSIN with other immuno-oncology drugs, including Merck’s Keytruda and targeted immunomodulatory drugs, including Celgene’s Revlimid and Imnovid.

The MicroCap Conference is an exclusive event for investors who specialize in small and microcap stocks. It is an opportunity for investors to be introduced to and speak with management at some of the most attractive small companies, learn from various expert panels, and mingle with other microcap investors.

A live audio link to the webcast session will be available on the Company’s website at View Source It is recommended that listeners log on 10 minutes in advance of a live session to register and download any necessary software. An audio replay will be accessible approximately two hours following the presentation on the Oncolytics website.

Stemline Therapeutics Announces Start of Rolling BLA Submission for SL-401

On April 5, 2018 Stemline Therapeutics, Inc. (Nasdaq:STML), a clinical-stage biopharmaceutical company developing novel oncology therapeutics, reported that it has initiated its rolling submission of a Biologics License Application (BLA) for SL-401 to the U.S. Food and Drug Administration (FDA) (Press release, Stemline Therapeutics, APR 5, 2018, View Source [SID1234532232]). SL-401 is a targeted therapy directed to CD123 that has been granted Breakthrough Therapy designation (BTD) by the FDA.

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Ivan Bergstein, MD, CEO of Stemline, commented, "The start of our rolling BLA submission is a major milestone for Stemline and the BPDCN patient community at large. If successful, SL-401 would be the first drug ever approved for BPDCN. Moreover, we believe that SL-401 may have a transformative impact on the outcomes of patients with this lethal malignancy of high unmet medical need. With this in mind, our clinical, regulatory, manufacturing, and commercial teams continue to work expeditiously to bring SL-401 to patients as quickly as possible."

Aeglea BioTherapeutics to Present Pegzilarginase Phase 1 Dose Escalation Data in Patients with Advanced Solid Tumors at 2018 AACR Annual Meeting

On April 5, 2018 Aeglea BioTherapeutics, Inc. (NASDAQ:AGLE), a clinical-stage biotechnology company that designs and develops innovative human enzyme therapeutics for patients with rare genetic diseases and cancer, reported that it will present Phase 1 dose escalation data regarding the use of the Company’s pegzilarginase in patients with advanced solid tumors at the 2018 Annual Meeting of the American Association for Cancer Research (AACR) (Free AACR Whitepaper) in Chicago, Illinois on Sunday, April 15 (Press release, Aeglea BioTherapeutics, APR 5, 2018, View Source [SID1234525187]).

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Title: Phase I Dose Escalation Trial of Pegzilarginase in Patients with Advanced Solid Tumors

Session Title: Phase I Clinical Trials 1

Session Date and Time: Sunday, April 15, 1:00 p.m. to 5:00 p.m. CT

Session Location: McCormick Place South, Hall A, Poster Section 42

Poster Board Number: 23

Permanent Abstract Number: CT030

An electronic version of the presentation will be available for download from the Presentations & Events section of the Company’s investor relations website after the poster presentation.

About Pegzilarginase (AEB1102) in Cancer
Pegzilarginase is an enhanced human arginase that enzymatically degrades the amino acid arginine. In some cancers, tumor cells stop producing specific amino acids and must acquire them from the blood, making the tumor cells susceptible to starvation through depletion of those amino acids. Aeglea is developing pegzilarginase to exploit vulnerabilities in some cancers that lead to an increased dependency on extracellular arginine. Pegzilarginase targets these arginine dependent cancers by depleting blood arginine levels to below the normal range. Preclinical data demonstrated that the resulting arginine starvation inhibits proliferation, induces cell death, increases turnover of cell components and promotes anti-tumor immune responses. The Company’s Phase 1 data in advanced solid tumors demonstrated that pegzilarginase was well tolerated at doses that produced marked and sustained reductions in blood arginine levels below the normal range.

Molecular Partners to present MP0310 pre-clinical data and MP0250 clinical abstracts at the AACR Annual Meeting 2018

On April 4, 2018 Molecular Partners AG (ticker: MOLN), a clinical-stage biopharmaceutical company developing a new class of drugs known as DARPin therapies*, reported that new pre-clinical data from two of its pipeline candidates, MP0310 and its lead proprietary oncology drug MP0250, as well as the DARPin toolbox will be presented at the Annual Meeting 2018 of the American Association of Cancer Research (AACR) (Free AACR Whitepaper) in Chicago (Press release, Molecular Partners, APR 4, 2018, View Source [SID1234525191]).

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MP0310 targets simultaneously 4-1BB and FAP and is the first of a series of tumor-restricted agonists that only activate immune cells in the tumor and not in the rest of the body thereby allowing full activation and potentially opening the therapeutic window for combinations.

MP0250 is a phase 2 multi-DARPin candidate targeting simultaneously VEGF and HGF, two prominent escape pathways, and has the potential to reverse resistance that has built to standard of care cancer therapies.

The four abstracts to be presented include the most recent pre-clinical data of MP0310 as well as the rationale of MP0250 in EGFR mutated NSCLC (Non-small Cell Lung Cancer).

"We are very pleased with the progress of our portfolio showcasing the innovation power of the DARPin technology in the multi-specific biologics space," commented Michael T. Stumpp, Chief Scientific Officer. "With MP0250 and MP0310, we are moving forward with two candidates that have the potential to add significant patient benefit and support existing therapies."

The data will be presented in the following sessions under the following titles:

MP0310:
Tuesday, 17 April 2018, 8.00 am: PO.IM02.07 – Immunomodulatory Agents and Interventions 1: 3752 / 2 – Preclinical pharmacology of MP0310: A 4-1BB/FAP bispecific DARPin drug candidate promoting tumor-restricted T-cell co-stimulation (Link et al.)
Tuesday, 17 April 2018, 8.00 am: PO.TB07.01 – Cancer Imaging: Immunology and Systems Analysis in Vivo: 3029 / 2 – FAP-mediated tumor accumulation of a T-cell agonistic FAP/4-1BB DARPin drug candidate analyzed by SPECT/CT and quantitative biodistribution
(Reichen et al.)
Portfolio:
Tuesday, 17 April 2018, 1.00 pm: PO.CL06.05 – Immune Checkpoints 4: 4552 / 7 – Tumor-restricted immune modulation by multispecific molecules from the DARPin toolbox (Fiedler et al.)
MP0250:
Tuesday, 17 April 2018, 1.00 pm: PO.CT05 – Phase I/II, II, and III Trials in Progress: CT149 / 1 – MP0250, a VEGF- and HGF-blocking multi-DARPin drug candidate, in combination with tyrosine-kinase-inhibitors targeting EGFR-mutated NSCLC: Preclinical rationale and phase Ib/II study outline (Kiemle-Kallee et al.)
Full details on the Molecular Partners’ sessions at AACR (Free AACR Whitepaper) 2018 as well as all presentations can be found here. Following their presentation at the AACR (Free AACR Whitepaper), the posters will also be available one the Molecular Partners website.

About the DARPin Difference
DARPin therapeutics are a new class of protein therapeutics opening an extra dimension of multi-specificity and multi-functionality. DARPin candidates are potent, specific, safe and very versatile. They can engage in more than 5 targets at once, offering potential benefits over those offered by conventional monoclonal antibodies or other currently available protein therapeutics. The DARPin technology is a fast and cost-effective drug discovery engine, producing drug candidates with ideal properties for development and very high production yields.

With their good safety profile, low immunogenicity and long half-life in the bloodstream and the eye, DARPin therapies have the potential to advance modern medicine and significantly improve the treatment of serious diseases, including cancer and sight-threatening disorders. Molecular Partners is partnering with Allergan to advance clinical programs in ophthalmology, and is advancing a proprietary pipeline of DARPin drug candidates in oncology. The most advanced global product candidate is abicipar, a molecule currently in Phase 3, in partnership with Allergan.

Several DARPin molecules for various ophthalmic indications are also in development. The most advanced systemic DARPin molecule, MP0250, is in Phase 1 clinical development for the treatment of solid tumors and in Phase 2 development for hematological tumors. In addition, Molecular Partners intends to further evaluate MP0250 for solid tumors in a phase 1b/2 trial for EGFR-mutated NSCLC. MP0274, the second-most advanced DARPin drug candidate in oncology, has broad anti-HER activity; it inhibits HER1, HER2 and HER3-mediated downstream signaling via Her2, leading to induction of apoptosis. MP0274 has moved into Phase 1. Molecular Partners is also advancing a growing preclinical pipeline that features several immuno-oncological development programs. DARPin is a registered trademark owned by Molecular Partners AG.