On November 15, 2018 Seattle Genetics, Inc. (Nasdaq:SGEN) reported that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation to ADCETRIS (brentuximab vedotin) for previously untreated systemic anaplastic large cell lymphoma or other CD30-expressing peripheral T-cell lymphomas (PTCL), including angioimmunoblastic T-cell lymphoma and PTCL not otherwise specified, in combination with CHP (cyclophosphamide, doxorubicin, and prednisone) (Press release, Seattle Genetics, NOV 15, 2018, View Source [SID1234531359]). The positive topline results of the phase 3 ECHELON-2 clinical trial were announced in October 2018, followed by the submission of a supplemental Biologics License Application (BLA) to the FDA in November 2018. Additional data will be presented at the upcoming American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, December 1-4, 2018 in San Diego, Calif. ADCETRIS is an antibody-drug conjugate (ADC) directed to CD30, which is expressed on the surface of several types of PTCL. ADCETRIS is currently not approved for the frontline treatment of PTCL.

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The FDA’s Breakthrough Therapy Designation is intended to expedite the development and review of promising drug candidates for serious or life-threatening conditions. It is based upon clinical evidence of substantial improvement over existing therapies on one or more clinically significant endpoints.

"Data from the ECHELON-2 phase 3 trial of ADCETRIS in combination with chemotherapy showed superior progression-free survival and overall survival versus the standard of care chemotherapy regimen, CHOP, in the treatment of frontline CD30-expressing peripheral T-cell lymphomas," said Clay Siegall, Ph.D., President and Chief Executive Officer of Seattle Genetics. "This is the third Breakthrough Therapy Designation for ADCETRIS and supports our goal to make this therapy available to patients with newly diagnosed peripheral T-cell lymphomas as soon as possible. We look forward to presenting the data from our phase 3 ECHELON-2 trial at the upcoming ASH (Free ASH Whitepaper) Annual Meeting."

This Breakthrough Therapy Designation was based on data from the phase 3 ECHELON-2 clinical trial evaluating the combination of ADCETRIS plus CHP versus the control arm, CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone), in previously untreated CD30-expressing PTCL. The ECHELON-2 study met its primary endpoint demonstrating a statistically significant improvement in progression-free survival (PFS) of ADCETRIS in combination with CHP versus CHOP as assessed by an Independent Review Facility (IRF; hazard ratio=0.71; p-value=0.0110). The ADCETRIS plus CHP arm also demonstrated superior overall survival (OS), a key secondary endpoint, compared to CHOP (hazard ratio=0.66; p-value=0.0244). All other key secondary endpoints, including PFS in patients with systemic anaplastic large cell lymphoma (sALCL), complete remission rate and objective response rate were statistically significant in favor of the ADCETRIS plus CHP arm. The safety profile of ADCETRIS plus CHP in the ECHELON-2 trial was comparable to CHOP and consistent with the established safety profile of ADCETRIS in combination with chemotherapy.

ECHELON-2 Phase 3 Clinical Trial Design

The randomized, double-blind, placebo-controlled phase 3 trial is investigating ADCETRIS plus CHP (cyclophosphamide, doxorubicin, prednisone) versus CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone) as frontline therapy in patients with CD30-expressing peripheral T-cell lymphoma, also known as mature T-cell lymphoma. The primary endpoint is progression-free survival (PFS) per Independent Review Facility assessment, with events defined as progression, death, or receipt of chemotherapy for residual or progressive disease. Secondary endpoints include PFS in patients with systemic anaplastic large cell lymphoma (sALCL), complete remission rate, overall survival and objective response rate, in addition to safety. The multi-center trial was conducted at sites across North America, Europe and Asia and was designed to enroll 450 patients, approximately 75 percent of whom were to be diagnosed with sALCL. The ECHELON-2 trial is being conducted under a Special Protocol Assessment (SPA) agreement from the U.S. Food and Drug Administration (FDA) and the trial also received European Medicines Agency (EMA) scientific advice.

Please see Important Safety Information, including Boxed Warning, at the end of this press release.

About T-Cell Lymphomas

Lymphoma is a general term for a group of cancers that originate in the lymphatic system. There are two major categories of lymphoma: Hodgkin lymphoma and non-Hodgkin lymphoma. There are more than 60 subtypes of non-Hodgkin lymphomas which are broadly divided into two major groups: B-cell lymphomas, which develop from abnormal B-lymphocytes, and T-cell lymphomas, which develop from abnormal T-lymphocytes. There are many different forms of T-cell lymphomas, some of which are extremely rare. T-cell lymphomas can be aggressive (fast-growing) or indolent (slow-growing). PTCL accounts for approximately 10 percent of non-Hodgkin lymphoma cases in the U.S. and Europe and may be as high as 24 percent in parts of Asia.

About ADCETRIS (brentuximab vedotin)

ADCETRIS is being evaluated broadly in more than 70 clinical trials in CD30-expressing lymphomas. These include the recently completed phase 3 ECHELON-2 trial in frontline peripheral T-cell lymphomas (also known as mature T-cell lymphoma), the completed phase 3 ECHELON-1 trial in previously untreated Hodgkin lymphoma, the completed phase 3 ALCANZA trial in cutaneous T-cell lymphoma, and the ongoing CHECKMATE 812 trial of ADCETRIS in combination with Opdivo (nivolumab) for relapsed/refractory Hodgkin lymphoma.

ADCETRIS is an ADC comprising an anti-CD30 monoclonal antibody attached by a protease-cleavable linker to a microtubule disrupting agent, monomethyl auristatin E (MMAE), utilizing Seattle Genetics’ proprietary technology. The ADC employs a linker system that is designed to be stable in the bloodstream but to release MMAE upon internalization into CD30-expressing tumor cells.

ADCETRIS injection for intravenous infusion has received FDA approval for five indications in adult patients with: (1) previously untreated Stage III or IV classical Hodgkin lymphoma (cHL), in combination with chemotherapy, (2) cHL at high risk of relapse or progression as post-autologous hematopoietic stem cell transplantation (auto-HSCT) consolidation, (3) cHL after failure of auto-HSCT or failure of at least two prior multi-agent chemotherapy regimens in patients who are not auto-HSCT candidates, (4) sALCL after failure of at least one prior multi-agent chemotherapy regimen, and (5) primary cutaneous anaplastic large cell lymphoma (pcALCL) or CD30-expressing mycosis fungoides (MF) who have received prior systemic therapy.

Health Canada granted ADCETRIS approval with conditions for relapsed or refractory Hodgkin lymphoma and sALCL in 2013, and non-conditional approval for post-autologous stem cell transplantation (ASCT) consolidation treatment of Hodgkin lymphoma patients at increased risk of relapse or progression.

ADCETRIS received conditional marketing authorization from the European Commission in October 2012. The approved indications in Europe are: (1) for the treatment of adult patients with relapsed or refractory CD30-positive Hodgkin lymphoma following ASCT, or following at least two prior therapies when ASCT or multi-agent chemotherapy is not a treatment option, (2) the treatment of adult patients with relapsed or refractory sALCL, (3) for the treatment of adult patients with CD30-positive Hodgkin lymphoma at increased risk of relapse or progression following ASCT, and (4) for the treatment of adult patients with CD30-positive cutaneous T-cell lymphoma (CTCL) after at least one prior systemic therapy.

ADCETRIS has received marketing authorization by regulatory authorities in 72 countries for relapsed or refractory Hodgkin lymphoma and sALCL. See select important safety information, including Boxed Warning, below.

Seattle Genetics and Takeda are jointly developing ADCETRIS. Under the terms of the collaboration agreement, Seattle Genetics has U.S. and Canadian commercialization rights and Takeda has rights to commercialize ADCETRIS in the rest of the world. Seattle Genetics and Takeda are funding joint development costs for ADCETRIS on a 50:50 basis, except in Japan where Takeda is solely responsible for development costs.

On November 15, 2018 TRACON Pharmaceuticals (NASDAQ:TCON), a clinical stage biopharmaceutical company focused on the development and commercialization of novel targeted therapeutics for cancer, wet age-related macular degeneration and fibrotic diseases, reported its new data from the Company’s ongoing Phase 3 TAPPAS study of TRC105 and Votrient (pazopanib) in patients with angiosarcoma at the Connective Tissue Oncology Society (CTOS) annual meeting, taking place in Rome, Italy (Press release, Tracon Pharmaceuticals, NOV 15, 2018, View Source [SID1234531358]).

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In a poster presentation entitled, "Detection of Endoglin-Expressing Circulating Tumor Cells in Patients Enrolled in An Adaptive Enrichment Phase 3 Trial of TRC105 And Pazopanib versus Pazopanib alone in Patients with Advanced AngioSarcoma (TAPPAS)," circulating tumor cell data were presented from patients enrolled into the TAPPAS Phase 3 trial. Endoglin expressing nucleated CTCs were detected using ApoStream technology (ApoCell, a Precision Medicine company).

Paired patient plasma samples taken at baseline and six weeks following treatment with either TRC105 and Votrient or single agent Votrient were analyzed in a blinded manner, without knowledge of treatment assignment. Endoglin+ CTCs decreased overall after 6 weeks of study treatment (baseline mean = 66/ml; median = 1.38/ml; range 0 – 1172/ml versus 6 week mean = 1.30/ml; median = 1.38/ml; range 0 – 185/ml). Three key findings emerged in the blinded analysis:

18 of 51 patients (35%) had a greater than two-fold reduction in endoglin+ CTCs, including 13/51 patients (25%) with a greater than 10-fold reduction.
19 of 51 patients (37%) had a greater than two-fold increase in endoglin+ CTCs, including 13/51 patients (25%) with a greater than 10-fold increase.
14 of 51 patients (27%) had no significant change in endoglin+ CTCs, all but one of whom had fewer than four endoglin+ CTCs per mL detected at baseline.
"The CTC analysis done as part of the TAPPAS Phase 3 trial has been robust and we have seen differences in CTC count following treatment which will be unblinded and correlated with treatment arm in the final analysis. Change in CTC count on study may be useful as a prognostic biomarker, and baseline CTC count may be useful as a predictive biomarker," said Charles Theuer, M.D., Ph.D., President and CEO of TRACON. "In the meantime, we look forward to the Phase 3 TAPPAS trial interim analysis expected in the first quarter of 2019."

The poster is available on TRACON’s website at www.traconpharma.com

About Carotuximab (TRC105)

TRC105 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 a pivotal Phase 3 trial in angiosarcoma and multiple Phase 2 clinical trials, in combination with VEGF inhibitors, as well as in a Phase 1 trial with Opdivo. TRC105 has received orphan designation for the treatment of soft tissue sarcoma in both the U.S. and EU. The ophthalmic formulation of TRC105, DE-122, is currently in a randomized Phase 2 trial for patients with wet AMD. For more information about the clinical trials, please visit TRACON’s website at www.traconpharma.com/clinical_trials.php.

On November 15, 2018 PharmaCyte Biotech, Inc. (OTCQB: PMCB), a clinical stage biotechnology company focused on developing targeted cellular therapies for cancer and diabetes using its signature live-cell encapsulation technology, Cell-in-a-Box, reported that it has successfully completed a U.S. Food and Drug Administration (FDA) required formal report on the safety studies conducted by Bavarian Nordic using a pig model that were undertaken before the first clinical trial in humans using cellulose-based capsules that contain live genetically altered cells which activate the anticancer prodrug ifosfamide (Press release, PharmaCyte Biotech, NOV 15, 2018, View Source [SID1234531357]). The voluminous information contained in the formal report is another complicated Investigational New Drug Application (IND) component requested by the FDA to be included in the IND before the start of the clinical trial for the treatment of locally advanced, non-metastatic, inoperable pancreatic cancer (LAPC).

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A formal study report, including all the data from the previously performed porcine animal studies, has been completed and independently reviewed and verified. The original data was published in part in the journal Pancreatology, but the confines of that scientific publication did not allow for the complete volume of data to be included in the journal article, necessitating several components of the studies to be woven together in a formal study report according to FDA guidelines. The original data was compiled and independently reviewed by Facet Life Sciences with the support of original members of the team that performed the porcine experiments, including Prof. Matthias Löhr who was the Principal Investigator for the first two pancreatic cancer trials with what has evolved into PharmaCyte’s current treatment for pancreatic cancer. The final study report has now been signed off on by two members of the original team, Prof. Udo Losert and Prof. Walter H. Günzburg, and will be submitted to the FDA as part of the IND dossier required for approval for the commencement of PharmaCyte’s planned clinical trial in LAPC.

PharmaCyte’s Chief Executive Officer, Kenneth L. Waggoner, said, "These large animal studies, which had to be retrieved from locations in several countries in Europe, demonstrate the safety of delivering capsules to the blood vessels (vasculature) leading to the pancreas in pigs and are supported by the initial clinical trial data generated to date, primarily from trials in Germany. The formal study report allows us to submit the complete set of data in the appropriate fashion to the FDA as part of our IND submission for our upcoming LAPC trial in the U.S."

On November 15, 2018 Heat Biologics, Inc. (NASDAQ: HTBX), a biopharmaceutical company developing therapies designed to activate a patient’s immune system against cancer, reported financial and clinical updates for the third quarter ended September 30, 2018 (Press release, Heat Biologics, NOV 15, 2018, View Source [SID1234531356]).

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Jeff Wolf, Heat’s CEO, commented, "We continue to advance our Phase 2 trial investigating our lead candidate HS-110 in combination with Bristol-Myers Squibb’s anti-PD-1 checkpoint inhibitor, nivolumab (Opdivo), in patients with advanced non-small cell lung cancer (NSCLC). We intend to announce updates regarding interim Phase 2 data in the fourth quarter of 2018 and plan to complete patient enrollment in Q2 2019. Given the positive interim results we reported earlier this year, which included durable responses to HS-110 in difficult-to-treat low TIL and low PD-L1 patients, we have seen increased interest from within the industry for improving outcomes for those patients least likely to respond to checkpoint inhibitors alone.

"We have completed a Pre-IND Type B meeting with FDA for our next-generation ComPACT product and plan to file our Phase 1 Investigational New Drug (IND) in the first quarter of 2019. Our ComPACT therapy combines T-cell activation and co-stimulation within a single treatment, simplifying combination immunotherapy while potentially providing superior immune activation at reduced treatment costs.

"Finally, we are also on track to submit an IND for PTX-35, our novel co-stimulatory antibody designed to harness the body’s natural antigen-specific immune activation mechanisms, in the first quarter of 2019. We are encouraged by the preliminary pre-clinical efficacy and safety data which shows a positive toxicity profile across a wide range of doses.

"Importantly, we ended the quarter with a strong cash balance of $21.0 million and expect to receive an additional $6.9 million in CPRIT grant funds for PTX-35 within the next few months. Combined, these funds should provide us with sufficient capital to significantly advance our clinical programs through a number of key milestones, including completion of our Phase 2 trial of HS-110, which holds the potential to drive significant value for shareholders."

Third Quarter 2018 Financial Results

Recognized $1.8 million of grant revenue for qualified expenditures under the CPRIT grant.
Research and development expenses increased approximately 144.4% to $4.4 million for the three months ended September 30, 2018 compared to $1.8 million for the three months ended September 30, 2017.
General and administrative expense increased approximately 33.3% to $1.6 million for the three months ended September 30, 2018 compared to $1.2 million for the three months ended September 30, 2017. The $0.4 million increase consists of professional services/consulting fees associated with our 2018 Annual Meeting of Shareholders as well as an increase in investor relations and new business development fees during the three months ended September 30, 2018.
Net loss attributable to Heat Biologics was $3.7 million, or ($0.16) per basic and diluted share for the three months ended September 30, 2018 compared to a net loss of $2.3 million, or ($0.64) per basic and diluted share for the three months ended September 30, 2017.
As of September 30, 2018, the Company had approximately $21.0 million in cash and cash equivalents.

On November 15, 2018 SELLAS Life Sciences Group, Inc. (Nasdaq:SLS) ("SELLAS" or the "Company"), a clinical-stage biopharmaceutical company focused on the development of novel cancer immunotherapies for a broad range of cancer indications, reported financial results for the quarter ended September 30, 2018 (Press release, Sellas Life Sciences, NOV 15, 2018, View Source [SID1234531355]).

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"Throughout the third quarter and in recent weeks, we made significant progress advancing our clinical development programs while also improving the Company’s financial standing. We strengthened our cash position with an equity offering in July and the recent settlement with JGB removed all outstanding debt while bringing an additional $6.6 million into the Company. Our Phase 1/2 galinpepimut-S (GPS) basket study in collaboration with Merck is progressing well and we are also further preparing for our registrational Phase 3 GPS trial in acute myeloid leukemia (AML) which we look forward to commencing in early 2019," said Angelos Stergiou, MD, ScD h.c., President and Chief Executive Officer of SELLAS. "We also continue to be excited about our nelipepimut-S (NPS, Neuvax) program in triple negative breast cancer (TNBC) patients as we review additional correlative data from the positive Phase 2b study. We have submitted a robust regulatory briefing to the FDA for review and hope to agree on the most optimal development program for NPS in TNBC in December while we continue our discussions with potential partners."

Third Quarter 2018 and Recent Business Highlights

Clinical Pipeline
During the third quarter, several clinical sites were activated in the planned Phase 1/2 open label five-arm basket type trial of galinpepimut-S (GPS) administered in combination with Merck & Co.’s PD-1 inhibitor, pembrolizumab (Keytruda), with patients currently being screened.
In October and November 2018, the Company reported on final data for nelipepimut-S (NPS, Neuvax). In October 2018, the independent Data Safety Monitoring Board concluded that the final positive data (median follow-up of more than 26 months) from the Phase 2b study of trastuzumab (Herceptin) +/- NPS in HER2 1+/2+ breast cancer patients confirmed the previously disclosed interim positive data (median follow-up of less than 19 months) in triple negative breast cancer (TNBC) patients. This positive final data was presented at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) 2018 Annual Meeting. The final Phase 2b study data revealed a clinically meaningful and statistically significant difference in favor of the active arm, NPS plus trastuzumab (vs. trastuzumab alone), in TNBC patients at 26 months with a p-value of 0.013 and a 75.2% relative risk reduction of relapse or death and showed no imbalances in safety between the active arm and the control arm. In November 2018, SELLAS announced additional data from a preplanned secondary efficacy analysis of the Phase 2b study data showing consistent clinical effect across HLA allele subgroups in TNBC patients, including the HLA-A24+ subgroup which is highly prevalent in the Asian population. This additional efficacy analysis showed a clinically meaningful and statistically significant benefit in the HLA-A24+ subgroup with a p-value of 0.003 and a 90.6% relative risk reduction of relapse or death in favor of the active arm, NPS plus trastuzumab. The Company is continuing to advance potential partnering discussions for NeuVax.

Regulatory
A meeting with the U.S. Food and Drug Administration (FDA) to discuss the most optimal regulatory pathway for further development of NPS in TNBC patients is scheduled to take place in December 2018.
In September 2018, SELLAS announced that the Committee for Orphan Medicinal Products of the European Medicines Agency approved orphan medicinal product designation for GPS for the treatment of multiple myeloma (MM).
In July 2018, SELLAS announced that the FDA granted Fast Track designation to GPS for the treatment of MM.

Corporate
In October 2018, the U.S. District Court for the Southern District of New York entered an order granting in full the Company’s motion to dismiss the complaint brought by JGB (Cayman) Newton, Ltd. (JGB) in connection with a senior secured debenture entered into by SELLAS’ predecessor while allowing SELLAS’ substantive counterclaims against JGB to remain. In November 2018, the Company announced that it had reached a settlement with JGB regarding the counterclaims. The Company received approximately $6.6 million in the settlement and the debenture and all related agreements, liens and security interests were terminated.
In July 2018, SELLAS completed an underwritten public offering of common stock and pre-funded warrants, together with accompanying common stock warrants, for aggregate net proceeds of approximately $21.6 million, after deducting underwriting discounts, commissions and offering expenses.
As of September 30, 2018, unrestricted cash and cash equivalents were $10.0 million compared to $2.3 million as of December 31, 2017.
Third Quarter 2018 Financial Results

For accounting purposes, SELLAS Life Sciences Group Ltd., a private Bermuda exempted company (SELLAS Ltd.), is considered to have acquired the Company (which was formerly known as Galena Biopharma, Inc. (Galena) in the business combination between SELLAS Ltd. and Galena (the Merger); therefore, upon the Merger, the financial statements of Galena became those of SELLAS Ltd. and the results reported are those of SELLAS Ltd. reflecting the acquisition of Galena as of December 29, 2017.

Cash Position: As of September 30, 2018, unrestricted cash and cash equivalents totaled $10.0 million which does not include a $6.6 million payment received by the Company that was related to the settlement of litigation with JGB in November 2018. Unrestricted cash and cash equivalents as of December 31, 2017 totaled $2.3 million.

Net cash used in operating activities was $25.9 million for the nine months ended September 30, 2018, which includes $4.3 million used to reduce payables related to the Merger. During the third quarter SELLAS received a total of $21.6 million in net proceeds, after deducting fees and expenses, from an underwritten public offering of common stock and pre-funded warrants, together with accompanying common stock warrants that was completed in July.

R&D Expenses: Research and development expenses were $1.7 million for the third quarter of 2018, as compared to $1.1 million for the third quarter of 2017. The increase was primarily due to the initiation of the Phase 1/2 clinical trial for GPS in combination with Keytruda and ongoing costs incurred during the third quarter related to the Phase 2b trial for NPS in combination with trastuzumab in breast cancer, as well as increased licensing fees resulting from our expanded clinical portfolio as a result of the Merger. This increase was partially offset by a reduction in stock-based compensation during the third quarter of 2018. Research and development expenses for the nine months ended September 30, 2018 were $5.1 million and were $5.1 million for the same period in 2017.

G&A Expense: General and administrative expenses were $1.3 million for the third quarter of 2018, as compared to $3.2 million for the third quarter of 2017. The decrease in the current period was primarily due to a reduction in stock-based compensation and the accounting treatment for costs related to litigation and other legal matters associated with the settlement of the JGB litigation and resulting reimbursement of legal fees. This decrease was partially offset by an increase in personnel related expenses, insurance and other expenses. General and administrative expenses for the first nine months of 2018 were $10.1 million, as compared to $9.4 million for the nine months ended September 30, 2017. The increase was primarily related to costs associated with outside services, accounting and audit expenses, insurance and public company costs, partially offset by a reduction in stock-based compensation and a decrease in financing and advisory fees associated with the Merger.

Net Loss: Net loss attributable to common stockholders was $9.4 million for the third quarter of 2018, or a basic and diluted loss per share attributable to common stockholders of $0.53, as compared to a net loss attributable to common stockholders of $4.5 million for the third quarter of 2017, or a basic and diluted loss per share attributable to common stockholders of $2.27. The increase in net loss was driven primarily by non-cash charges related to equity issuances during 2018.

Conference Call and Webcast Information

SELLAS will host a conference call and live audio webcast today at 8:00 a.m. ET to discuss these financial results and provide a business update. To participate in the conference call, please dial (866) 416-7995 (domestic) or (409) 217-8225 (international) and refer to conference ID 7038536. A live webcast of the call can be accessed under "Events & Presentations" in the Investors section of the Company’s website at www.sellaslifesciences.com. An archived webcast recording will be available on the SELLAS website beginning approximately two hours after the call.