Inovio Pharmaceuticals to Present at H.C. Wainwright Global Life Sciences Conference in London, UK

On March 27, 2019 Inovio Pharmaceuticals, Inc. (NASDAQ: INO) reported that management will present at the H.C. Wainwright Global Life Sciences Conference on Monday, April 8, 2019 at 4:10 p.m. local time (Press release, Inovio, MAR 27, 2019, View Source [SID1234534672]). The conference is being held at the Grosvenor House Hotel in London, UK.

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Inovio Pharmaceuticals. (PRNewsFoto/Inovio Pharmaceuticals, Inc.)
A live webcast and replay of the presentation will be available on the Investors section of the company’s website, View Source

Synthetic Biologics Reports 2018 Year End Operational Highlights and Financial Results

On February 27, 2019 Synthetic Biologics, Inc. (NYSE American: SYN), a clinical-stage company developing therapeutics that preserve the microbiome to protect and restore the health of patients, reported financial results for the year ended December 31, 2018 (Press release, Synthetic Biologics, FEB 27, 2019, View Source [SID1234533810]).

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Synthetic Biologics, Inc. www.syntheticbiologics.com (PRNewsFoto/Synthetic Biologics, Inc.)

"During the fourth quarter, we remained sharply focused on executing our strategy to advance and demonstrate the significant value of our portfolio of GI and microbiome-focused clinical assets," stated Steven A. Shallcross, Chief Executive and Financial Officer. "We are pleased to report that patient enrollment is continuing for our investigator-sponsored Phase 2b clinical trial of SYN-010, our modified-release formulation of lovastatin lactone designed to treat an underlying cause of irritable bowel syndrome with constipation. We believe data derived from this study will solidify our existing clinical outcomes data, including dose-response, and potentially simplify future registration studies. We anticipate a topline data readout from this study in the second half of 2019."

Mr. Shallcross continued, "During the fourth quarter, we also announced the results of our End-of-Phase 2 meeting with the U.S. Food & Drug Administration (FDA) during which key elements of a Phase 3 clinical program were confirmed to support a marketing application for SYN-004 for the prevention of Clostridium difficile infection (CDI). In parallel, we continue to evaluate strategies to pursue a secondary clinical indication for SYN-004 in a specialized patient population which may allow for a more narrow and less costly clinical development pathway. One such indication is the prevention of acute graft-versus-host-disease (aGVHD) in allogeneic hematopoietic cell transplant (HCT) recipients, where protection of the gut microbiome from antibiotic damage may provide a distinct benefit to patient outcomes. Discussions with key opinion leaders who are experts in allogeneic HCT are ongoing, and we look forward to sharing updates and progress for this potential indication."

"With the steps we have taken at the end of the fourth quarter to fortify our long-term financial footing, we have created a strong foundation upon which to execute our strategy to advance and showcase the value of our late stage clinical assets. Our entire organization is excited and committed to achieving the important clinical development milestones we have established for 2019," concluded Mr. Shallcross.

Clinical Development and Operational Update

Commenced enrollment of Phase 2b investigator-sponsored clinical study of SYN-010, for the treatment of IBS-C,
The Phase 2b clinical study is being conducted by the Medically Associated Science and Technology (MAST) Program at Cedars-Sinai Medical Center and is a 12-week, placebo-controlled, double-blind, randomized clinical trial evaluating two dose strengths of oral SYN-010 (21 mg and 42 mg) in approximately 150 patients diagnosed with IBS-C,
The primary objective for the study will be to determine the efficacy of SYN-010, measured as an improvement from baseline in the weekly average number of complete spontaneous bowel movements (CSBMs) during the 12-week treatment period for SYN-010 21 mg and 42 mg daily doses relative to placebo,
Secondary efficacy endpoints for both dose strengths of SYN-010 will measure changes from baseline in abdominal pain, bloating, stool frequency as well as the use of rescue medication relative to placebo,
Topline data readout anticipated for 2H 2019,
Cedars-Sinai Medical Center and Synthetic Biologics are co-funding the study. The patent rights covering the use of SYN-010 are owned by Cedars-Sinai Medical Center and are exclusively licensed by Cedars-Sinai Medical Center to Synthetic Biologics;
Held an End-of-Phase 2 meeting with FDA and confirmed key elements of the Phase 3 clinical program to support a marketing application for SYN-004 (ribaxamase),
A single Phase 3 clinical trial may be sufficient for marketing approval for the prevention of antibiotic-mediated CDI,
The Phase 3 clinical program will entail a single, global, event-driven clinical trial with a fixed maximum number of patients for total enrollment,
The primary efficacy endpoint will be the reduction in the incidence of CDI at one month after the last drug dose in the ribaxamase treatment group versus placebo,
A separate co-primary safety endpoint is non-inferiority in mortality rates between the SYN-004 treatment group and placebo at 3 months post-randomization;
Continued to evaluate a potential secondary indication for SYN-004 (ribaxamase) for the prevention of acute graft-versus-host-disease (aGVHD) in allogeneic hematopoietic cell transplantation (HCT) recipients,
Identification of key investigators and the development of clinical protocols and a pre-IND package is ongoing,
Anticipate initiation of a Phase 1/2 investigator-sponsored clinical study in HCT patients in 2H 2019, contingent upon the identification of a research partner and subsequent Institutional Review Board (IRB) approval;
Identified potential clinical indications for SYN-020 (intestinal alkaline phosphatase) in areas of unmet medical need including, enterocolitis associated with radiation therapy for cancer and autoimmune enterocolitis associated with checkpoint inhibitor therapy for cancer,
Preclinical efficacy studies are ongoing,
Anticipate filing a US IND application in Q4 2019,
Plan to commence a Phase 1 clinical trial in Q1 2020;
Strengthened balance sheet by raising gross proceeds of approximately $18.6 million from the closing of a public offering of common stock and Series B Convertible Preferred Stock in support of our lead clinical development activities
Raised additional net proceeds of approximately $12.2 million from the utilization of the Company’s "at-the-market" facility through the end of 2018.
Year Ended December 31, 2018 Financial Results

General and administrative expenses decreased to $5.7 million for the year ended December 31, 2018, compared to $7.5 million for the year ended December 31, 2017. This decrease of 24% is due to the decreased stock-based compensation expense related to forfeitures and share price, along with the reduction of salary, travel and consulting expense, offset by higher registration, investor relations and legal costs. The charge relating to stock-based compensation expense was $1.0 million for the year ended December 31, 2018, compared to $2.0 million for the year ended December 31, 2017.

Research and development expenses decreased to $11.8 million for the year ended December 31, 2018, from $18.8 million for the year ended December 31, 2017. This decrease of 37% is primarily the result of lower SYN-004 (ribaxamase) and SYN-010 program costs for 2018 since no clinical trials were ongoing during the year. The research and development costs incurred during the quarter were primarily related to planning for future Phase 3 (SYN-004) and Phase 2b/3 (SYN-010) clinical programs as we sought to secure the financial resources necessary for the completion of these clinical trials. We anticipate research and development expense to increase due to the ongoing Phase 2b investigator-sponsored clinical trial for SYN-010 and development activities associated with the potential initiation of a Phase 1/2 investigator-sponsored clinical trial for the prevention of aGVHD in HCT recipients for SYN-004. Research and development expenses also include a charge relating to non-cash stock-based compensation expense of $1.1 million for the year ended December 31, 2018, compared to $1.4 million for the year ended December 31, 2017.

Other income was $4.2 million for the year ended December 31, 2018, compared to other income of $10.8 million for the year ended December 31, 2017. Other income for the year ended December 31, 2018 is primarily due to non-cash income of $4.1 million from the change in fair value of warrants. The decrease in the fair value of warrants was due to the decrease in our stock price from December 31, 2017.

In connection with the issuance and subsequent conversions of the Series B Convertible Preferred Stock in 2018 and the issuance of the Series A Convertible Preferred Stock in 2017, the Company recognized non-cash deemed dividends of $11.7 million and $6.9 million respectively, for the beneficial conversion feature resulting from the intrinsic value of the Series B and Series A conversion options as of the issuance date.

Cash and cash equivalents on December 31, 2018 were $28.9 million, an increase of $11.8 million from December 31, 2017.

Conference Call

Synthetic Biologics will hold a conference call today, Wednesday, February 27, 2019, at 4:30 p.m. (EST). The dial-in information for the call is as follows, U.S. toll free: 1-888-347-5280 or International: +1 412-902-4280. Participants are asked to dial in 15 minutes before the start of the call to register. The call will also be webcast over the Internet at View Source." target="_blank" title="View Source." rel="nofollow">View Source An archive of the call will be available for replay at the same URL, View Source, for 90 days after the call.

Seattle Genetics Highlights Antibody-Drug Conjugate Innovation and Immuno-Oncology Program at the American Association for Cancer Research (AACR) Annual Meeting

On March 27, 2019 Seattle Genetics, Inc. (Nasdaq:SGEN) reported data highlights from six presentations showcasing technology advances in the company’s antibody-drug conjugate (ADC) platform and an immuno-oncology program at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2019 being held March 29-April 3, 2019 in Atlanta (Press release, Seattle Genetics, MAR 27, 2019, View Source [SID1234534673]).

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"Our expertise in empowered-antibody innovation drives a substantial, advancing pipeline of clinical and preclinical programs, including both ADCs and immuno-oncology agents," said Dennis Benjamin, Ph.D., Senior Vice President of Research at Seattle Genetics. "For example, the research presented in an oral presentation at AACR (Free AACR Whitepaper) illustrates why we believe SGN-CD228A is well positioned for IND-enabling studies and a phase 1 study is planned in multiple tumor types. The program features a novel ADC targeted to CD228, which is highly expressed in several types of cancer. The ADC employs our proprietary auristatin technology and has shown antitumor activity in vitro and in vivo."

Abstracts can be found at www.aacr.org and include the following:

SGN-CD228A: A novel humanized anti-CD228 antibody-drug conjugate for the treatment of solid tumors (Abstract #2688)
Date: Monday, April 1, 2019
Time: 3:00 p.m. – 5:00 p.m. ET, Oral Presentation at 3:20 p.m. ET, Room B401

The cell-surface protein CD228 is highly expressed in several types of cancer, including melanoma, mesothelioma, non-small cell lung (NSCLC), breast, colorectal and pancreatic cancers. SGN-CD228A is an auristatin-based ADC targeted to CD228. The preliminary data show antitumor activity in preclinical evaluations in melanoma, NSCLC and triple negative breast cancer.

Antibody-drug conjugates of NAMPT inhibitors: Discovery, optimization and preclinical characterization (Abstract #983)
Date: Monday, April 1, 2019
Time: 8:00 a.m. – 12:00 p.m. ET, Poster Session

At the AACR (Free AACR Whitepaper) Annual Meeting 2018, data were presented showing ADCs with a proprietary NAMPT inhibitor payload have a unique mechanism of action and an encouraging therapeutic window. This poster presentation will highlight preclinical results from the optimization of the novel payload and linker strategy, and application to ADCs, which data indicate drive tumor regression in models of Hodgkin lymphoma, non-Hodgkin lymphoma and acute myeloid leukemia (AML). The targeted delivery approach using ADCs demonstrates an improved safety profile relative to previously described unconjugated NAMPT inhibitors.

TIGIT directed human antibody modulates T-regulatory and effector cell function (Abstract #4986)
Date: Wednesday, April 3, 2019
Time: 8:00 a.m. – 12:00 p.m. ET, Poster Session

The immune checkpoint receptor TIGIT negatively regulates the function of adaptive (T cell) and innate (natural killer or NK) cells and blockade of TIGIT signaling may elicit an antitumor immune response. Preclinical data from an antibody program targeting TIGIT demonstrate in vitro activation of T cells and antitumor activity in several syngenic models.

Development of patient-derived acute myeloid leukemia xenograft models (Abstract #1062)
Date: Monday, April 1, 2019
Time: 8:00 a.m. – 12:00 p.m. ET, Poster Session

This poster presentation is focused on successfully establishing a collection of AML xenograft models that more accurately reflect the antigen expression and molecular genetics of AML patients. These models will enable a more precise assessment of therapeutic candidates in preclinical testing.

Functional cell surface proteomics of acute myeloid leukemia enables predictive modeling of antibody-drug conjugate cytotoxicity (Abstract #4546)
Date: Wednesday, April 3, 2019
Time: 8:00 a.m. – 12:00 p.m. ET, Poster Session

This poster profiles the cell surface landscape of more than 100 primary hematologic samples comprising leukemic blasts from patients treated in the Beat AML research consortium along with normal bone marrow cells from healthy donors. Based on cell surface proteomics, a number of highly expressed antigens were identified and targeted ADCs were evaluated on a panel of AML cell lines. CD317 was determined as a novel target for AML.

Tisotumab vedotin induces anti-tumor activity through MMAE-mediated, Fc-mediated, and Fab-mediated effector functions in vitro (Abstract #221)
Date: Sunday, March 31, 2019
Time: 1:00 p.m. – 5:00 p.m. ET, Poster Session

Tisotumab vedotin is an investigational ADC designed to target Tissue Factor (TF) antigen on TF-expressing cell surfaces and deliver the cell-killing agent monomethyl auristatin E (MMAE) directly inside TF-expressing cells. The Tissue Factor antigen target is overexpressed in the vast majority of patients with cervical cancer and in many other solid tumors, including ovarian, lung, pancreatic, colorectal and head and neck. This poster presentation evaluates tisotumab vedotin’s antitumor activity through several mechanisms, including immunogenic cell death, bystander cytotoxicity, and antibody-dependent cellular phagocytosis in vitro.

TRACON Pharmaceuticals Announces TRC105, TRC253 And TRC102 Data Presentations At Upcoming AACR Annual Meeting

On March 27, 2019 TRACON Pharmaceuticals (NASDAQ:TCON), a clinical stage biopharmaceutical company focused on the development and commercialization of novel targeted therapeutics for cancer and, through our license to Santen Pharmaceutical Co. Ltd., wet age-related macular degeneration, reported that preclinical data from TRC105 and TRC253, as well as Phase 2 clinical data from TRC102, will be presented at the upcoming American Association for Cancer Research (AACR) (Free AACR Whitepaper) annual meeting, to be held from March 29 to April 3, 2019, in Philadelphia, PA (Press release, Tracon Pharmaceuticals, MAR 27, 2019, View Source [SID1234534674]).

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Dr. Mark Schoonderwoerd and colleagues from Leiden University will present a poster featuring data from preclinical studies of TRC105 and PD-1 checkpoint inhibitors. The presentation details are as follows:

Poster Title: Synergistic inhibition of cancer invasion and metastasis by combined anti-PD1-TRC105-mediated Endoglin targeting on cancer-associated fibroblasts and endothelial cells
Abstract Link: View Source!/6812/presentation/3044
Session Category: Combination Approaches to Novel Therapies
Location: Section 12, Poster Board 291/12
Date: Sunday, March 31, 2019
Time: 1:00pm – 5:00pm EDT
Dr. Tammy Bush and colleagues from Janssen Research and Development will present a poster featuring preclinical data from TRC253, a small molecule antagonist of mutant and wild-type androgen receptor. The presentation details are as follows:

Poster Title: Antitumor activity of JNJ-63576253 (TRC253), a small molecule antagonist of F877L mutant and wild-type androgen receptor
Abstract Link: View Source!/6812/presentation/6162
Session Category: Novel Therapeutics and Pathways
Location: Section 14, Poster Board 2179/1
Date: Monday, April 1, 2019
Time: 1:00pm – 5:00pm EDT
Dr. Geraldine Coyne and colleagues from the National Cancer Institute will present a poster featuring data from the Phase 2 clinical trial of TRC102 and Temodar (temozolomide) in subjects with colorectal cancer. The presentation details are as follows:

Poster Title: A Phase II trial of TRC102 (methoxyamine HCl) in combination with temozolomide in patients with relapsed metastatic colorectal carcinoma
Abstract Link: Late-Breaking Abstracts are embargoed until March 29, 2019
Session Category: Late-Breaking Research – Molecular and Cellular Biology/Genetics 2
Location: Section 41, Poster Board LB-293/10
Date: Wednesday, April 3, 2019
Time: 8:00am – 12:00pm EDT
Posters will be available on the company’s website following presentation.

About TRC105 (carotuximab)

TRC105, the oncology formulation of carotuximab, is a novel, clinical stage antibody to endoglin, a protein overexpressed on proliferating endothelial cells that is essential for angiogenesis, the process of new blood vessel formation. TRC105 is currently being studied in the pivotal Phase 3 TAPPAS trial in patients with angiosarcoma as well as multiple Phase 1 and Phase 2 clinical trials in other tumor types. TRC105 has received orphan designation for the treatment of soft tissue sarcoma in both the US and EU. The ophthalmic formulation of TRC105, DE-122, is currently being studied in the randomized Phase 2 AVANTE trial in patients with wet AMD. For more information about the clinical trials, please visit TRACON’s website at www.traconpharma.com/clinical_trials.php.

About TRC253

TRC253 is a novel, orally bioavailable small molecule that is a potent, high affinity competitive inhibitor of the androgen receptor (AR) and AR mutations, including the F877L mutation. The AR F877L mutation results in an alteration in the AR ligand binding domain that confers resistance to therapies for prostate cancer. Therapies targeting the AR have demonstrated clinical efficacy by extending time to disease progression, and in some cases, the survival of patients with metastatic castration-resistant prostate cancer. However, resistance to these agents is often observed and several molecular mechanisms of resistance have been identified, including gene amplification, overexpression, alternative splicing, and point mutation of the AR. TRC253 is currently being studied in a Phase 1/2 clinical trial in prostate cancer. For more information about the clinical trial, please visit TRACON’s website at www.traconpharma.com/clinical_trials.php

About TRC102

TRC102 (methoxyamine) is a novel, clinical-stage small molecule inhibitor of the DNA base excision repair pathway, which is a pathway that causes resistance to alkylating and antimetabolite chemotherapeutics. TRC102 is currently being studied in multiple Phase 1 and Phase 2 clinical trials sponsored by the National Cancer Institute or Case Comprehensive Cancer Center. For more information about the clinical trials, please visit TRACON’s website at www.traconpharma.com/clinical_trials.php.

Tocagen to Present Updated Data from Clinical and Preclinical Studies at Two Scientific Conferences

On March 27, 2019 Tocagen Inc. (Nasdaq: TOCA), a clinical-stage, cancer-selective gene therapy company, reported three presentations of updated clinical and preclinical data at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2019, to be held March 29-April 3 in Atlanta and the 2019 American Association of Neurological Surgeons (AANS) Annual Meeting, to be held April 13-17 in San Diego (Press release, Tocagen, MAR 27, 2019, View Source;p=RssLanding&cat=news&id=2392515 [SID1234534696]).

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The clinical data includes details of immunologic trends in patients with recurrent high-grade glioma (rHGG) from a Phase 1 study of Toca 511 (vocimagene amiretrorepvec) and Toca FC (flucytosine, extended-release). Additionally, new preclinical data will be presented demonstrating increased survival from the combination of Toca 511 and flucytosine with either temozolomide or cyclophosphamide.

Summaries are provided below; full posters or presentations will be placed on Tocagen’s website following the presentation.

Details of the AACR (Free AACR Whitepaper) presentation are as follows:

Presentation Type: Poster (Abstract: 4771)
Title: The addition of Toca 511 and 5-FC to temozolomide improves response in a temozolomide-resistant murine glioblastoma model and correlates with Toca 511 dose
Presenter: Maria E. Rodriguez-Aguirre
Date and Time: Wednesday, April 3, 8:00 a.m.-12:00 p.m. ET
Summary:

This study aimed to assess the interaction of temozolomide with escalating doses of Toca 511 in an orthotopic temozolomide-resistant murine glioma model.
Even with lympho-depleting temozolomide treatment, survival was prolonged with moderate levels (30-50 percent) of tumor transduction of Toca 511 with 5-FC but not with lower transduction rates (10 percent).
Data from this study may inform the evaluation of Toca 511 & Toca FC in combination with temozolomide in patients with newly diagnosed glioblastoma (GBM).
Details of the AANS presentations are as follows:

Presentation Type: E-Poster displayed online (Abstract: 2120)
Title: Immune Monitoring of High-Grade Glioma Patients in a Phase 1 Clinical Trial of Toca 511 and Toca FC
Presenter: Steven Kalkanis, M.D.
Summary:

Human immune monitoring results from a Phase 1 clinical trial of Toca 511 & Toca FC support an immune-related mechanism of action for the regimen.
Univariate comparisons and multivariate models revealed pre-treatment tumor infiltrating cell subsets quantified via deconvolution of RNA sequencing data were associated with both objective responses and survival.
Post-treatment serum cytokine time-course results suggest that differences in temporal modulations are associated with both objective response and survival.
These results indicate the value of evaluating potential biomarkers of patient outcomes in the ongoing randomized Toca 5 Phase 3 trial in patients with recurrent HGG.
Presentation Type: Oral (Abstract: 481)
Title: Toca 511 and 5-FC in Combination with Metronomic Cyclophosphamide Reduces Treg Cells and Enhances Therapy Efficacy in a Preclinical Murine Model
Presenter: David Piccioni, M.D., Ph.D.
Date and Time: Wednesday, April 17, 4:49-4:52 p.m. PT
Summary:

This study aimed to determine if the addition of metronomic cyclophosphamide would provide therapeutic benefit when combined with Toca 511 and 5-FC (5-fluorocytosine) in a preclinical, subcutaneous glioma model.
The addition of metronomic cyclophosphamide improved tumor control and survival, and led to a superior CD8+/Treg ratio in the peripheral blood.
Results support the further evaluation of Toca 511 & Toca FC with metronomic dosing of cyclophosphamide and potentially other chemotherapeutics.
About Toca 511 & Toca FC
Tocagen’s lead product candidate is a two-part cancer-selective immunotherapy comprising an investigational biologic, Toca 511 (vocimagene amiretrorepvec), and an investigational small molecule, Toca FC (flucytosine, extended-release). Toca 511 is a retroviral replicating vector (RRV) that selectively infects cancer cells and delivers a gene for the enzyme, cytosine deaminase (CD). Through this targeted delivery, infected cancer cells carry the CD gene and produce CD. Toca FC is an orally administered prodrug, 5-fluorocytosine (5-FC), which is converted into an anti-cancer drug, 5-fluorouracil (5-FU), when it encounters CD. 5-FU kills cancer cells and immune-suppressive myeloid cells resulting in anti-cancer immune activation and subsequent tumor killing.