On November 23, 2015 ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular") (NYSE MKT: IMUC) reported that it plans to host a conference call and webcast at 4:30 pm ET on Tuesday, November 24, 2015 to discuss the ICT-107 program in patients with newly diagnosed glioblastoma, including recently reported updated phase 2 clinical trial results and the design of the phase 3 registrational program (Press release, ImmunoCellular Therapeutics, NOV 23, 2015, View Source [SID:1234508335]). The conference call and webcast will be hosted by Andrew Gengos, President and CEO.

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LIVE CALL: (877) 853-5636 (toll-free); international dial-in: (631) 291-4544; conference code 89218581

WEBCAST: Interested parties who wish to listen to the webcast should visit the Investor Relations section of ImmunoCellular’s website at www.imuc.com, under the Events and Presentations tab. A replay of the webcast will be available one hour after the conclusion of the event.

The conference call will contain forward-looking statements. The information provided on the teleconference is accurate only at the time of the conference call, and ImmunoCellular will take no responsibility for providing updated information except as required by law.

On November 20, 2015 GenSpera Inc. (OTCQB: GNSZ), a biotech company developing a novel prodrug therapeutic for the treatment of cancer, reported results from the Phase II study investigating the use of mipsagargin (G-202) for the treatment of glioblastoma multiforme (Filing, 8-K, GenSpera, NOV 23, 2015, View Source [SID:1234508334]). The results will be presented today in a poster entitled, "Phase II study of mipsagargin (G-202), a PSMA-activated prodrug targeting the tumor endothelial cells, in adult patients with recurrent or progressive glioblastoma," at the Society for Neuro-Oncology (SNO) Annual Scientific Meeting in San Antonio, Texas. The poster is available on the company website.

"We are seeing disease stabilization in a subset of patients and, importantly, clinical benefit appears to be correlated with PSMA expression, which offers enrichment strategies to enroll only potential responders in future clinical trials," said David Piccioni, M.D, Ph.D., the study’s Principal Investigator. "These results demonstrate mipsagargin’s potential to treat a patient population with few therapy options."

In addition to Dr. Piccioni, the two-stage, single-arm, open-label study (NCT02067156) is led by neuro-oncologist Santosh Kesari, M.D., Ph.D., and is being conducted at the UC San Diego Moores Cancer Center in La Jolla, Calif. The Phase II results indicate that mipsagargin appears to confer clinical benefit in a subset of patients and is well tolerated by glioblastoma patients. The results are as follows:

• Three of 11 efficacy evaluable patients demonstrated at least stable disease at the first disease assessment (2 stable disease, 1 partial response), one of which has met the primary endpoint of six-month progression-free survival.
• No dose-limiting toxicities have occurred. Preliminary evidence suggests that mipsagargin is well tolerated and may induce disease stabilization or treatment response.
• PSMA (Prostate-Specific Membrane Antigen) staining of tumor tissues shows variability of expression but all three responders have >2+ staining. Biomarker evaluation is ongoing.

"We are very encouraged with the positive results from this interim Phase II trial that demonstrate the tolerability and indications of effectiveness of mipsagargin in advanced brain cancer patients," said Craig Dionne, Ph.D., chief executive officer at GenSpera. "Mipsagargin is a first-in-class agent with a novel mechanism of action that is unlike any other drug being tested in patients with advanced brain cancer."

Potential Advantages of Mipsagargin in Glioblastoma Patients

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Glioblastoma is the most common and most aggressive malignant primary brain tumor in humans. There are approximately 10,000 new cases of malignant glioblastoma diagnosed each year in the United States and, despite optimal treatment, the median survival for these patients is only 12 to 15 months. Treatment commonly consists of surgery followed by radiation and the drug temozolomide. A few drugs have been approved in patients that have recurrent tumors, but none have been shown to promote long-term tumor stabilization or survival. Glioblastomas are particularly resistant to conventional chemotherapy drugs as most cannot cross the blood-brain barrier. This disadvantage of conventional chemotherapy does not apply to mipsagargin because mipsagargin directly attacks the PSMA-expressing cells of the tumor-associated blood vessels that comprise the blood-brain barrier.

On November 23, 2015 Genmab A/S (OMX: GEN) reported that the Phase III study of single agent ofatumumab compared to single agent rituximab in patients with follicular non-Hodgkin’s lymphoma (NHL) that has relapsed at least 6 months after completion of treatment with a rituximab-containing regimen will be stopped early (Press release, Genmab, NOV 23, 2015, View Source [SID:1234508333]). The decision to stop the study was made after a planned interim analysis performed by an Independent Data Monitoring Committee (IDMC) showed that it was unlikely that ofatumumab would show superiority if the trial was to be completed as planned.

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"The outcome of the interim analysis in this study is disappointing as we had hoped to see superiority of ofatumumab. The data from the study will now be prepared so that it can be presented at a future scientific conference," said Jan van de Winkel, Ph.D., Chief Executive Officer of Genmab.

Today’s news does not impact any other ongoing studies with ofatumumab.

About the study
This Phase III study aimed to randomize up to 516 patients to receive ofatumumab (1000 mg) or rituximab (375 mg/m2) by intravenous infusion for four weekly doses. Patients who had stable or responsive disease then received single infusions of ofatumumab or rituximab every two months for four additional doses for a total of eight doses over nine months. The primary endpoint of the study was progression free survival.

About Ofatumumab (Arzerra)
Ofatumumab is a human monoclonal antibody that is designed to target the CD20 molecule found on the surface of chronic lymphocytic leukemia (CLL) cells and normal B lymphocytes.

In the United States, Arzerra is approved for use in combination with chlorambucil for the treatment of previously untreated patients with CLL for whom fludarabine-based therapy is considered inappropriate. In the European Union, Arzerra is approved for use in combination with chlorambucil or bendamustine for the treatment of patients with CLL who have not received prior therapy and who are not eligible for fludarabine-based therapy. In more than 50 countries worldwide, Arzerra is also indicated as monotherapy for the treatment of patients with CLL who are refractory after prior treatment with fludarabine and alemtuzumab.
Arzerra is not approved anywhere in the world as treatment for relapsed follicular NHL.

Please see full Prescribing Information, including Boxed WARNING for Arzerra (ofatumumab).

Arzerra is marketed under a collaboration agreement between Genmab and Novartis.

On November 24, 2015 CTI BioPharma Corp. (CTI BioPharma or the Company) (NASDAQ and MTA: CTIC) reported that the United Kingdom’s National Cancer Research Institute (NCRI) Haematological Oncology Clinical Studies Group has chosen to advance tosedostat, the Company’s investigative oral aminopeptidase inhibitor, to the second stage of a randomized clinical trial of low-dose cytarabine plus or minus tosedostat in older patients with Acute Myeloid Leukemia (AML) or high risk Myelodysplastic Syndrome (MDS) (Press release, CTI BioPharma, NOV 23, 2015, View Source;p=RssLanding&cat=news&id=2116992 [SID:1234508332]). The AML Less Intensive (LI-1) trial is designed as a "Pick-a-Winner" trial to be able to simultaneously test a number of promising agents added to standard therapy with low-dose cytarabine in older patients with AML or MDS who are unfit for standard aggressive induction therapy. Nine regimens have been tested in the Pick-a-Winner program, of which only 4, including tosedostat, have passed the initial hurdle for progression (which requires evidence of an improvement in remission rate with acceptable safety). The ultimate aim of the trial is to identify treatments that can double the 2-year survival of patients in this group. Based on the randomized Phase 2 interim analysis, the trial management group determined that tosedostat should proceed to the next stage of the study. It is anticipated that an additional 110 patients will be required in such phase. A further evaluation will take place before the intended expansion to a 400 patient Phase 3 trial.

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Tosedostat is a potential first-in-class selective inhibitor of aminopeptidases, which are enzymes required by some tumor cells, but not normal cells, to provide a source of amino acids necessary for growth and tumor cell survival.

"A large portion of older patients and patients with comorbid conditions are poorly suited for conventional intensive chemotherapy due to a high rate of treatment-related mortality. For these patients, there is a significant unmet need for effective and well tolerated alternative therapies," said Jack Singer, M.D., Chief Scientific Officer of CTI BioPharma. "We are pleased that tosedostat has been selected to continue in this trial and is moving forward to the next stage. Tosedostat has demonstrated encouraging clinical activity in three prior Phase 2 studies in both first-line AML in older patients and in patients who relapsed following standard therapies. Tosedostat is an oral agent given once daily on an outpatient basis that has not been associated with drug-related blood count suppression."

About the LI-1 Trial
In this Phase 2/3 trial, referred to as the AML Less Intensive (LI-1) trial, patients are randomized to standard treatment with low dose cytarabine, versus several investigational treatments – each usually in combination with low dose cytarabine. This is called a "Pick-a-Winner" trial design. Under this design, the Phase 2 portion of the trial initially randomized 50 patients per arm, and, if the complete response rate of cytarabine plus novel therapy appeared satisfactory, the randomization continues to the next stage usually with an additional 50 patients per arm. There is then a further assessment by the data monitoring committee to allow the trial to continue to the final stage in which case up to a total of approximately 200 patients per arm would be enrolled. Overall survival will serve as the primary endpoint of the trial. The NCRI Haematological Oncology Clinical Studies Group under the sponsorship of Cardiff University is conducting the trial.

About Tosedostat
Tosedostat is an oral aminopeptidase inhibitor that has demonstrated anti-tumor responses in blood-related cancers and solid tumors in Phase 1-2 clinical trials. Tosedostat is currently being evaluated in multiple Phase 2 clinical trials for the treatment of patients with AML or high-risk MDS. Tosedostat is not approved or commercially available.

About Acute Myeloid Leukemia and Myelodysplastic Syndrome
AML is the most common acute leukemia affecting adults, and its incidence increases with age. In older patients, AML may occur de novo or secondary to prior anti-cancer therapy, or from progression of other diseases, such as myelodysplasia. AML is a cancer characterized by the rapid growth of abnormal white blood cells that accumulate in the bone marrow and interfere with the production of normal blood cells. AML is the most common acute leukemia affecting adults, and its incidence increases with age.1 The symptoms of AML are caused by the replacement of normal bone marrow with leukemic cells, which causes a drop in red blood cells, platelets, and normal white blood cells, leading to infections and bleeding. AML progresses rapidly and is typically fatal within weeks or months if left untreated. In 2015, approximately 20,830 new cases of AML are expected to be diagnosed in the United States and an estimated 10,460 are expected to die from the disease.2 While AML may occur at any age, adults at least 60 years of age are more likely than younger people to develop the disease.2 Although a substantial proportion of younger individuals who develop AML can be cured, AML in the elderly typically responds poorly to standard therapy with few complete remissions.

AML may develop from the progression of other diseases, such as MDS. MDS are a group of diverse bone marrow disorders in which the bone marrow does not produce enough healthy blood cells. MDS is often referred to as a "bone marrow failure disorder."

On November 23, 2015 The U.S. Food and Drug Administration reported that it approved Opdivo (nivolumab) to treat patients with advanced (metastatic) renal cell carcinoma, a form of kidney cancer, who have received a certain type of prior therapy.
"Opdivo provides an important therapy option for patients with renal cell carcinoma," said Richard Pazdur, M.D., director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research (Press release, , NOV 23, 2015, View Source [SID:1234508328]). "It is one of few therapies that have demonstrated the ability to extend patients’ survival in treating this disease." Torisel (temsirolimus), approved in 2007, is the only other FDA-approved therapy that has demonstrated overall survival in renal cell cancer.

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Renal cell carcinoma is the most common form of kidney cancer in adults and forms in the tissues of the kidney that make urine. The National Cancer Institute estimates 61,560 new cases and 14,080 deaths from kidney and renal pelvis cancer in the United States this year.

"Additionally, Opdivo’s extended indication, from melanoma and non-small cell lung cancer to renal cell cancer, demonstrates how immune therapies can benefit patients across a wide range of tumors," continued Dr. Pazdur.

Opdivo works by targeting the cellular pathway known as PD-1/PD-L1 (proteins found on the body’s immune cells and some cancer cells). By blocking this pathway, Opdivo may help the body’s immune system fight cancer cells. Opdivo is intended for use in renal cell carcinoma in patients who have received prior anti-angiogenic therapy (treatments that interfere with the blood vessels that contribute to the growth of cancerous cells).

The safety and efficacy of Opdivo for this use were demonstrated in an open-label, randomized study of 821 patients with advanced renal cell carcinoma whose disease worsened during or after treatment with an anti-angiogenic agent. Patients were treated with Opdivo or another type of kidney cancer treatment called everolimus (marketed as Afinitor). Those treated with Opdivo lived an average of 25 months after starting treatment compared to 19.6 months in those treated with Afinitor. This effect was observed regardless of the PD-L1 expression level of patients’ renal cell tumors. Additionally, 21.5 percent of those treated with Opdivo experienced a complete or partial shrinkage of their tumors, which lasted an average of 23 months, compared to 3.9 percent of those taking Afinitor, lasting an average of 13.7 months.

The most common side effects of Opdivo for this use are conditions relating to abnormal weakness or lack of energy (asthenic conditions), cough, nausea, rash, difficulty breathing (dyspnea), diarrhea, constipation, decreased appetite, back pain and joint pain (arthralgia).

Opdivo also has the potential to cause serious side effects that result from the immune system effect of Opdivo (known as "immune-mediated side effects"). These severe immune-mediated side effects involve healthy organs, including the lung, colon, liver, kidneys, hormone-producing glands and the brain.

The FDA granted the Opdivo application a breakthrough therapy designation, fast track designation, and priority review status. These are distinct programs intended to facilitate and expedite the development and review of certain new drugs in light of their potential to benefit patients with serious or life-threatening conditions.

Opdivo is marketed by Bristol-Myers Squibb based in Princeton, New Jersey. Torisel is marketed by Pfizer, based in New York, New York. Afinitor is marketed by Novartis Pharmaceuticals of East Hanover, New Jersey.