On November 13, 2017 OncBioMune Pharmaceuticals, Inc. (OTCQB:OBMP) ("OncBioMune" or the "Company"), a revenue-stage biopharmaceutical company engaged in the development of a proprietary cancer vaccine technology, targeted cancer therapies and commercialization of a portfolio of products internationally, reported the latest data updating the progression results at 19 weeks for all 20 patients, who have completed 6 vaccines in their Phase 1 clinical trial of ProscaVax for recurrent prostate cancer patients with increasing prostate specific antigen (PSA) (Press release, OncBioMune Pharmaceuticals, NOV 13, 2017, View Source [SID1234522143]). ProscaVax is OncBioMune’s novel immunotherapeutic cancer vaccine consisting of a combination of prostate cancer associated PSA with the biological adjuvants interleukin-2 (IL-2) and granulocyte-macrophage colony-stimulating factor (GM-CSF).

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All 20 patients enrolled in the trial completed ProscaVax therapy per protocol and have now completed the first follow-up at 19 weeks. 16 of 20 patients (80%) demonstrated stable disease/no prostate cancer progression. Only four patients progressed during ProscaVax therapy (3 PSA progression, 1 radiological progression in the brain).

The safety review confirmed there were no drug-related serious adverse events or dose-limiting toxicities resulting from the vaccine therapy.

OncBioMune is awaiting additional follow-up data related to our previously disclosed study data. This includes additional results on patients beyond the previously reported 12 of 15 patients that received ProscaVax vaccine, who exhibited an increased immune response to PSA as determined with a Lymphocyte Blastogenesis Assay. Also, additional results on the 6 patients vaccinated after OncBioMune previously reported that 9 of 14 patients who received six ProscaVax vaccinations demonstrated increased PSA doubling times. Additional follow-up will provide longer follow-up intervals for the last six patients who completed the vaccine therapy.

"All the data to date is consistent with previous study data showing ProscaVax elicits immune responses to fight tumor growth in prostate cancer," said Dr. Jonathan Head, Chief Executive Officer at OncBioMune. "We are impressed that 80 percent of the patients treated with ProscaVax demonstrated stable disease. We look forward to continuing to follow the patients in this study to collect additional data and also to conducting a larger study to further validate the therapeutic benefit of our vaccine platform technology."

On November 13, 2017 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 that positive results from a Phase 1 clinical trial of TRC102 (methoxyamine) and Fludara (fludarabine) in patients with advanced hematologic malignancies were published in the journal Oncotarget (Volume 8, Number 45, pages 79864-79875) (Press release, Tracon Pharmaceuticals, NOV 13, 2017, View Source;p=RssLanding&cat=news&id=2316621 [SID1234522013]).

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The Phase 1 trial enrolled a total of 20 patients, of whom 17 had measurable disease, with chronic lymphocytic leukemia (n=10), follicular lymphoma (n=3), diffuse large B cell lymphoma (n=3), plasma cell myeloma (n=2), mantle cell lymphoma (n=1), or anaplastic large cell lymphoma (n=1). Patients received one of five levels of TRC102 (15, 30, 60, 90, or 120 mg/m2) dosed intravenously on the initial day of recurring three week cycles in combination with Fludara dosed per label at 25 mg/m2 intravenously on days 1 through 5. Dose limiting toxicity was not observed. The most frequent toxicities were hematologic and were reversible when managed with supportive care. Four of the 17 patients (24%) experienced a partial response to treatment, and eight additional patients (8/17, 47%) had stable disease. The combination of TRC102 and Fludara produced evidence of tumor DNA damage that appeared to correlate with antitumor activity.

"We have now observed TRC102 to be well-tolerated in combination with three separate chemotherapeutics, Alimta, Temodar and Fludara, and we are encouraged by the responses seen to date," said Charles Theuer, M.D., Ph.D., President and CEO of TRACON. "We continue to make strong progress on the program and expect to report data from multiple National Cancer Institute-sponsored Phase 2 trials of TRC102 in 2018."

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.

On November 13, 2017 Puma Biotechnology, Inc. (Nasdaq: PBYI), a biopharmaceutical company, reported the publication of previously presented results from the ExteNET Phase III clinical trial of Puma’s drug neratinib in patients with early stage HER2-positive breast cancer in the journal The Lancet Oncology (Press release, Puma Biotechnology, NOV 13, 2017, View Source [SID1234522009]).

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The article, entitled "Neratinib after trastuzumab-based adjuvant therapy in early stage HER2-positive breast cancer (ExteNET): 5-year analysis of a randomized, double blind, placebo-controlled phase III trial," appears in the November 13th online issue of The Lancet Oncology and will be published in a future print issue of the journal.

The ExteNET trial is a double-blind, placebo-controlled, Phase III trial of neratinib versus placebo after adjuvant treatment with trastuzumab (Herceptin) in patients with early stage HER2-positive breast cancer. The predefined 5-year invasive disease free survival (iDFS) analysis as a follow-up to the primary 2-year iDFS analysis of the Phase III ExteNET trial was published online today.

The ExteNET trial randomized 2,840 patients in 41 countries with early stage HER2-positive breast cancer who had undergone surgery and adjuvant treatment with trastuzumab. After completion of adjuvant treatment with trastuzumab, patients were randomized to receive extended adjuvant treatment with either neratinib or placebo for a period of one year. Patients were then followed for invasive recurrent disease, ductal carcinoma in situ (DCIS), or death for a period of five years after randomization in the trial.

Neratinib was approved by the U.S. Food and Drug Administration (FDA) in July 2017 for the extended adjuvant treatment of adult patients with early stage HER2-positive breast cancer following adjuvant trastuzumab-based therapy, and is marketed in the United States as NERLYNX (neratinib) tablets.

The primary endpoint of the trial was invasive disease free survival (iDFS). The results of the trial demonstrated that after a median follow up of 5.2 years, treatment with neratinib resulted in a 27% reduction of risk of invasive disease recurrence or death versus placebo (hazard ratio = 0.73, p = 0.008). The 5-year iDFS rate for the neratinib arm was 90.2% and the 5-year iDFS rate for the placebo arm was 87.7%.

The secondary endpoint of the trial was invasive disease free survival including ductal carcinoma in situ (iDFS-DCIS). The results of the trial demonstrated that treatment with neratinib resulted in a 29% reduction of risk of disease recurrence including DCIS or death versus placebo (hazard ratio = 0.71, p = 0.004). The 5-year iDFS-DCIS rate for the neratinib arm was 89.7% and the 5-year iDFS-DCIS rate for the placebo arm was 86.8%.

For the pre-defined subgroup of patients with hormone receptor positive disease, the results of the trial demonstrated that treatment with neratinib resulted in a 40% reduction of risk of invasive disease recurrence or death versus placebo (hazard ratio = 0.60, p = 0.002). The 5-year iDFS rate for the neratinib arm was 91.2% and the 5-year iDFS rate for the placebo arm was 86.8%. For the pre-defined subgroup of patients with hormone receptor negative disease, the results of the trial demonstrated that treatment with neratinib resulted in a hazard ratio of 0.95 (p = 0.762).

"ExteNET represents the first trial with a HER2-targeted agent that has shown a benefit in the extended adjuvant setting, which we believe provides a meaningful point of differentiation for neratinib in the treatment of HER2-positive breast cancer. We are pleased that The Lancet Oncology has chosen to publish these results," said Alan H. Auerbach, Chief Executive Officer and President of Puma.

The safety results were unchanged from the primary 2-year iDFS analysis of the study that showed the most frequently observed adverse event for the neratinib-treated patients was diarrhea, with approximately 39.9% of the neratinib-treated patients experiencing grade 3 or higher diarrhea (1 patient (0.1%) had grade 4 diarrhea). No evidence of increased risk of long-term toxicity or long-term adverse consequences of neratinib-associated diarrhea were identified in the analysis. Patients who received neratinib in this trial did not receive any prophylaxis with antidiarrheal agents to prevent the neratinib-related diarrhea. Puma is currently running the ongoing CONTROL trial to investigate the use of loperamide-based prophylaxis to reduce the incidence of grade 3 or higher diarrhea in patients with early stage HER2-positive breast cancer who have completed adjuvant trastuzumab-based treatment. The most recently reported clinical data from CONTROL in June 2017 demonstrated that the use of loperamide-based prophylaxis reduced the rate of grade 3 diarrhea with neratinib, with grade 3 diarrhea rates ranging from 8-31% when loperamide-based prophylaxis was used.

On November 13, 2017 Mirati Therapeutics, Inc. (Nasdaq: MRTX) (the Company or Mirati), a clinical-stage targeted oncology company, reported that it is reprioritizing its development programs to capitalize on encouraging data and development opportunities in its sitravatinib and KRAS programs (Press release, Mirati, NOV 13, 2017, View Source [SID1234522006]). In addition, the Company announced that it has selected a clinical lead and backup compounds in its KRAS program that potently target KRAS G12C mutations. An Investigational New Drug (IND) Application submission is expected by the fourth quarter of 2018. The Company also announced it will deprioritize further investment in glesatinib and will pursue opportunities to partner the program. The reallocation of resources will support the acceleration and expansion of the sitravatinib and KRAS programs and is expected to provide funding for operations into late 2019.

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"We are very encouraged by the early results from our sitravatinib immuno-oncology program. The combination of sitravatinib and nivolumab has demonstrated durable responses and prolonged stable disease in patients with non-small cell lung cancer that have documented progression on prior checkpoint therapy. This is a patient population with poor prognosis and limited treatment options. We are focusing on accelerating this promising opportunity with sitravatinib and advancing our potentially first-in-class KRAS program, both of which address large underserved patient populations with significant market potential," said Charles M. Baum, M.D., Ph.D., President and Chief Executive Officer.

Program updates the Company expects to provide in 2018 include:
•
Phase 2 data from the immuno-oncology combination of sitravatinib and nivolumab in patients with checkpoint refractory non-small cell lung cancer (NSCLC) by mid-2018.
•
Advancement of the potentially first-in-class KRAS G12C inhibitor program to an IND submission by the fourth quarter of 2018.
•
Phase 1b proof-of-concept data from the study of sitravatinib as a single agent in genetically selected patients with NSCLC and other solid tumors by mid-2018.

•
Phase 2 data from the immuno-oncology combination of mocetinostat and durvalumab in patients with checkpoint refractory NSCLC in the first quarter of 2018.

Mirati’s Development Programs

Sitravatinib

Sitravatinib is a spectrum-selective kinase inhibitor that potently inhibits receptor tyrosine kinases (RTKs), including TAM family receptors (TYRO3, Axl, Mer), split family receptors (VEGFR2, KIT) and RET. As an immuno-oncology agent, sitravatinib is being tested in combination with the anti-PD-1 checkpoint inhibitor, nivolumab (OPDIVO), in NSCLC patients who have experienced documented disease progression following treatment with a checkpoint inhibitor. The majority of NSCLC patients either do not respond to checkpoint therapy or experience disease progression following treatment. Sitravatinib’s potent inhibition of TAM and split family RTKs may overcome resistance to checkpoint inhibitor therapy through targeted reversal of an immunosuppressive tumor microenvironment, enhancing antigen-specific T cell response and expanding dendritic cell-dependent antigen presentation.

As previously reported at the IASLC 18th World Conference on Lung Cancer, initial data from the ongoing Phase 2 study of sitravatinib in combination with nivolumab included three confirmed Partial Responses (PRs) in the first 11 evaluable patients. Eight of these patients exhibited tumor reduction. Seven patients (including all three patients with PRs) remained on study, with treatment duration ranging from four months to 10.5 months. These initial results are encouraging and may extend to other tumor types, including renal cell, bladder and liver cancer, where checkpoint inhibitors have demonstrated efficacy that may potentially be expanded by combining with sitravatinib. The Company plans to provide an update on the first two stages of this trial in up to 34 patients by mid-2018.

Sitravatinib is also being evaluated as a single agent in a Phase 1b expansion trial enrolling patients whose tumors harbor CBL, CHR4Q12 and RET genetic alterations in NSCLC and other tumor types. In the ongoing Phase 1b study of sitravatinib as a single agent, an objective response with tumor reduction of 77% was observed in the first evaluable NSCLC patient with a CBL mutation. The Company continues to enroll patients in this trial to confirm this early promising activity and will provide a further update across all cohorts by mid-2018.

KRAS Program Advancing Towards IND in 2018

The Company has selected a clinical lead and backup compounds for advancement to IND in its potential first-in-class KRAS program. The KRAS program emerged from a joint drug discovery collaboration with Array BioPharma, where over 100 co-crystal structures provided critical insight toward the design of potent and selective KRAS inhibitors. The clinical lead and backups are orally-available small molecule inhibitors of KRAS G12C mutations, with potencies of 1 to 20 nM (cellular IC50) and selectivity of greater than 1,000-fold for target inhibition in tumor cells harboring KRAS G12C mutations compared with cells exhibiting wild-type KRAS. In addition, the clinical lead and backups demonstrated complete regression of KRAS G12C-positive tumors implanted in mice. IND-enabling preclinical studies are underway, and an IND submission is expected by the fourth quarter of 2018, with early clinical proof-of-concept anticipated in 2019.

Historically, KRAS has been extremely difficult to directly inhibit due to its high affinity for GTP, and its lack of a defined binding pocket. Tumors characterized by KRAS mutations are commonly associated with poor prognosis and resistance to therapy. KRAS G12C driver mutations occur in approximately 14% of NSCLC adenocarcinoma patients and 5% of colorectal cancer patients, who

have few treatment options. The Company’s KRAS program has the potential to be the first direct inhibitor of this important and challenging tumor driver mutation.

Mocetinostat

Mocetinostat is a selective Class I and IV HDAC inhibitor. Inhibition of histone acetylation is predicted to enhance the recognition of tumor cells by anti-tumor T cells and reverse immunosuppressive factors in the tumor microenvironment. The Company is conducting a Phase 2 study of mocetinostat in combination with durvalumab (IMFINZI) in NSCLC patients who have experienced disease progression after prior treatment with checkpoint inhibitor therapy. Patients are stratified into two cohorts based upon their best response to prior checkpoint therapy. Stage 1 of the study is currently enrolling nine patients in each cohort. As previously reported, one cohort has already met the prespecified criteria for expansion into stage 2 with at least one confirmed partial response. The Company will provide an update on this trial in the first quarter of 2018.

Glesatinib
Glesatinib has demonstrated clinical activity and acceptable tolerability in MET-altered NSCLC patients. However, in light of superior investment opportunities in its pipeline, the Company will suspend further investment in glesatinib and will pursue opportunities to partner the program. The Company intends to present glesatinib data at a future medical conference.

LSD1 Preclinical Program
The Company has elected to suspend further development of its preclinical LSD1 inhibitor program as part of its reprioritization. In light of superior investment opportunities in its pipeline, the Company will seek a partner to continue development of the program.

On November 13, 2017 Celsion Corporation (NASDAQ:CLSN), an oncology drug development company, reported the submission of its Phase I/II clinical trial protocol to the U.S. Food and Drug Administration (FDA) for GEN-1, the Company’s DNA-based immunotherapy for the localized treatment of ovarian cancer (Press release, Celsion, NOV 13, 2017, View Source [SID1234521999]). The protocol, developed in conjunction with guidance from the Company’s Medical Advisory Board, is designed with a single dose escalation to evaluate the safety and biological activity of GEN-1 at 100mg/m² in newly diagnosed Stage III/IV ovarian cancer patients, followed by a continuation at the selected dose in Phase II in a 90 patient 1 to 1 randomized study. GEN-1 has demonstrated encouraging safety and efficacy data in a recently completed dose escalating Phase IB trial in combination with neoadjuvant chemotherapy, the standard of care for patients newly diagnosed with ovarian cancer. Concurrently with neoadjuvant chemotherapy, enrolled patients received escalating weekly doses of GEN-1, from levels beginning at 36mg/m², to 47mg/m², 61mg/m² and 79mg/m² weekly for 8 treatments in total, followed by interval debulking surgery.

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"GEN-1 is designed to locally activate IL-12 production which can recruit and stimulate the patient’s immune system to attack and destroy cancer," stated Dr. Nicolas Borys, Celsion’s senior vice president and chief medical officer. "In preclinical and multiple Phase I clinical studies performed to date, GEN-1 has demonstrated good safety and impressive immune system stimulation and clinical activity. This trial will evaluate its value as an adjuvant to current standard of care in newly diagnosed Stage III/IV ovarian cancer patients with a relatively healthy immune system. We look forward to initiating the study in the first half of 2018."
The Phase I/II study builds on the highly promising clinical and translational research data for the recently completed Phase IB dose-escalating OVATION Study. This next Phase I/II study will have a dose escalating phase to 100 mg/m² to identify a safe and tolerable dose of GEN-1 while maximizing an immune response. The study protocol was unanimously supported by an expert medical advisory board and lead investigators from the Phase IB OVATION Study and is summarized below:

Open label, 1:1 randomized design

Enrollment up to 90 patients with Stage III/IV ovarian cancer patients at ten U.S. centers
Primary endpoint of improvement in progression-free survival (PFS) comparing GEN-1 with neoadjuvant chemotherapy versus neoadjuvant chemotherapy alone.

PFS for patients treated per protocol in the Phase IB OVATION Study continues to be followed. Of the eight patients who received GEN-1 treatment over one year ago (cohort 1 – 3) and are being followed, only three patients’ cancer has progressed. This compares favorably to the historical median progression-free survival of 12 months for newly-diagnosed patients with Stage III and IV ovarian cancer that undergo neoadjuvant chemotherapy followed by interval debulking surgery. Of the remaining five patients who have been on the OVATION Study for over one year, their median PFS as of October 31, 2017 is 18.8 months with the longest progression-free patient at 24 months.

The protocol has been submitted to the FDA for its 30 day review and comment period. Pending this review, the Company expects to initiate enrollment of the Phase I portion of the study in the first half of 2018. The Company expects to have the study 50% enrolled by the end of 2018. Due to the open label design, clinical data will be disclosed throughout the execution of the trial as it is released by the study’s investigators.

"GEN-1 holds the potential of tremendous promise as a cancer treatment in the rapidly emerging area of immuno-oncology. Unlike the toxicities, poor tolerability, and poor pharmacokinetics of systemically administered recombinant IL-12, the beauty of GEN-1 is that it inspires secretion of highly-tolerable endogenous IL-12," said Michael H. Tardugno, Celsion’s chairman, president and chief executive officer. "Designed in consultation with leading thought leaders, this Phase I/II trial is expected to define an optimal dose, demonstrate GEN-1’s clinical benefit when compared with current standard of care, and provide insights on powering for a registration program as the candidate progresses through development."

About GEN-1 Immunotherapy

GEN-1, designed using Celsion’s proprietary TheraPlas platform technology, is an IL-12 DNA plasmid vector encased in a nanoparticle delivery system, which enables cell transfection followed by persistent, local secretion of the IL-12 protein. IL-12 is one of the most active cytokines for the induction of potent anti-cancer immunity acting through the induction of T-lymphocyte and natural killer (NK) cell proliferation. The Company has previously reported positive safety and encouraging Phase I results with GEN-1 given as monotherapy in patients with peritoneally metastasized ovarian cancer, and recently completed a Phase Ib trial of GEN-1 in combination with PEGylated doxorubicin in patients with platinum-resistant ovarian cancer.