Peregrine Pharmaceuticals Presents Preclinical Data Demonstrating PS-Targeting Antibodies Significantly Enhance the Anti-Tumor Activity of Multiple Checkpoint Targeting Agents in Model of Triple Negative Breast Cancer (TNBC)

On September 27, 2016 (GLOBE NEWSWIRE) Peregrine Pharmaceuticals, Inc. (NASDAQ:PPHM) (NASDAQ:PPHMP), a biopharmaceutical company committed to improving patient lives by manufacturing high quality products for biotechnology and pharmaceutical companies and advancing its proprietary R&D pipeline, reported the presentation of preclinical study data demonstrating that phosphatidylserine (PS)-targeting antibodies similar to bavituximab are able to enhance the anti-tumor activity of multiple checkpoint targeting agents including anti-PD-1 and anti-LAG3 therapies in a model of triple negative breast cancer (TNBC) (Press release, Peregrine Pharmaceuticals, SEP 27, 2016, View Source [SID:SID1234515466]). Data showed that eight of the ten (80%) animals receiving the preclinical bavituximab equivalent (ch1N11) combined with anti-PD-1 and anti-LAG3 therapies ("Triple Combination") experienced complete tumor regressions, whereas there were no animals (0/10) in the anti-PD-1 and anti-LAG3 combination treatment arm that had a complete regression.

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Additional data demonstrated that the Triple Combination featuring ch1N11 led to a 99% reduction in total tumor volume at the interim analysis point (Day 25) across all animals as compared to the control arm. In addition, the Triple Combination showed a statistically significant increase in tumor growth inhibition (TGI) as compared to the anti-PD-1 and anti-LAG3 combination treatment (99% vs. 62%; p < 0.05). Peregrine’s Michael J. Gray, Ph.D., the study’s lead scientist, presented the study findings at the Second CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference (CIMT) (Free CIMT Whitepaper) September 25-28, 2016, in New York City.

The presented study evaluated various combinations of ch1N11, anti-PD-1 and anti-LAG3 therapy in the well-characterized E0771 murine model of TNBC. Other key study findings included:
Treatment with Triple Combination therapy (ch1N11/anti-PD-1/anti-LAG3) led to a significant increase in tumor infiltrating lymphocytes (TILs), particularly CD8+ T cells, as compared with anti-PD-1 and anti-LAG3 combination treatments.

Treatment with Triple Combination therapy (ch1N11/anti-PD-1/anti-LAG3) resulted in a reduction in immunosuppressive cell types, including CD4+ cells, regulatory T cells (Tregs) and myeloid derived suppressor cells (MDSCs). These results show that the Triple Combination therapy is capable of significantly altering the tumor microenvironment from highly immunosuppressive to highly immuno-stimulatory. Other treatment combinations evaluated in the study lacked a statistically significant reduction in immunosuppressive cells.

"These data offer compelling evidence for the therapeutic potential of including PS-targeted therapies in combination with multiple checkpoint inhibitors in the treatment of TNBC. This is highlighted by the dramatic distinction in complete tumor regression rates seen between the Triple Combination and anti-PD-1/anti-LAG3 treatment arms, combined with the significant difference in tumor growth inhibition percentages witnessed for these groups," stated Jeff T. Hutchins, Ph.D., Peregrine’s vice president, preclinical research. "In addition to its impact on tumor growth, we saw very important changes in the tumor microenvironment with the Triple Combination treatment with a significant reduction in cell types that contribute to immune suppression such as CD4+ cells, Tregs and MDSCs coupled with the expansion of tumor fighting cells such as CD8+ T cells. These data offer mechanistic evidence that highlight the manner by which the combination of ch1N11/anti-PD-1/anti-LAG3 may be eliciting such anti-tumor responses."
Bavituximab is an investigational monoclonal antibody that targets PS. Signals from PS inhibit the ability of immune cells to recognize and fight tumors. Bavituximab is believed to override PS mediated immunosuppressive signaling by blocking the engagement of PS with its receptors as well as by sending an alternate immune activating signal. Previous studies demonstrated PS-targeting antibodies shift the functions of immune cells in tumors, resulting in multiple signs of immune activation and anti-tumor responses. Peregrine evaluates the preclinical equivalent of bavituximab, ch1N11, in animal model studies to guide clinical development.
Peregrine’s clinical development strategy for bavituximab currently focuses on small, early-stage, proof-of-concept trials evaluating the drug in combination with other cancer treatments. This approach includes the recently announced grants by the National Comprehensive Cancer Network (NCCN) to support three different clinical trials of bavituximab treatment combinations. Those trials will evaluate novel bavituximab combinations in glioblastoma, head and neck cancer, and hepatocellular carcinoma including an immunotherapy combination. Additionally, Peregrine continues to advance its pre-clinical collaboration with Memorial Sloan Kettering Cancer Center with the goal of evaluating combinations of bavituximab with other checkpoint inhibitors and immune stimulatory agents. The intent behind this strategy is to focus our research and development spending to further validate bavituximab’s combination potential as we seek to advance the program though a pharmaceutical or biotechnology partner.

Provectus Biopharmaceuticals Announces Acceptance of Abstract for Poster Presentation at 31st SITC Annual Meeting

On September 27, 2016 Provectus Biopharmaceuticals, Inc. (NYSE MKT: PVCT, www.provectusbio.com), a clinical-stage oncology and dermatology biopharmaceutical company ("Provectus" or the "Company"), reported that the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) has accepted an abstract for a poster presentation related to the use of PV-10, an investigational ablative immunotherapy under development by Provectus for solid tumor cancers, in the treatment of pancreatic cancer (Press release, Provectus Pharmaceuticals, SEP 27, 2016, View Source [SID:SID1234515422]).

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The abstract, "Intralesional injection with Rose Bengal and systemic chemotherapy induces anti-tumor immunity in a murine model of pancreatic cancer," describes research undertaken at Moffitt Cancer Center by a team of scientists led by Shari Pilon-Thomas. The exact time and place of the poster presentation has yet to be determined. The full abstract will be available on line at SITC (Free SITC Whitepaper)ancer.org on November 8 according to conference organizers.

The 31st SITC (Free SITC Whitepaper) Annual Meeting and Associated Programs will be held November 9-13 at the Gaylord National Hotel & Convention Center in National Harbor, Maryland.

Aduro Biotech Presents Encouraging Preclinical Data Showing Combination Synergy of its Immunotherapy and Checkpoint Inhibitors to Increase Antitumor Efficacy

On September 27, 2016 Aduro Biotech, Inc. (Nasdaq:ADRO) reported two posters presented at the Second CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference (CIMT) (Free CIMT Whitepaper) (CRI-AACR) in New York (Press release, Aduro BioTech, SEP 27, 2016, View Source;p=RssLanding&cat=news&id=2206156 [SID:SID1234515423]). The preclinical data demonstrate positive changes in the tumor microenvironment and induction of a tumor-specific immune response by Aduro’s LADD (listeria-based immunotherapy construct) and STING (Stimulator of Interferon Genes) Pathway Activator immunotherapy platform technologies. Importantly, adding a PD-1 blockade to either immunotherapy regimen significantly bolstered antitumor efficacy.

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"These preclinical data demonstrate the underlying mechanisms by which our LADD and STING immunotherapy platforms activate the immune system and induce robust innate immunity, facilitating a change in the tumor microenvironment which results in effective destruction of cancer cells in several preclinical models," said Thomas Dubensky, Jr., Ph.D., chief scientific officer of Aduro. "Importantly, the combination data are even more impressive, showing increased efficacy when our LADD and STING platforms are combined with an anti-PD1 checkpoint inhibitor to combat the tumor’s ability to hide from the immune system. These data support our strategy to combine our immunotherapy regimens with checkpoint inhibitors for greater anti-tumor activity, looking toward the ultimate goal of better, more effective patient care."

The following posters were presented at the meeting:

Poster A013: Favorable changes in the tumor microenvironment following intravenous dosing with live attenuated Listeria monocytogenes-based immunotherapy.
In a poster session on Sunday, September 25, 2016, Meredith Leong, Ph.D., a scientist at Aduro, presented data from multiple preclinical studies using Aduro’s LADD immunotherapy platform. The data demonstrated that a combination of LADD with an anti-PD1 checkpoint inhibitor results in improved anti-tumor efficacy in multiple tumor models. In addition, analyses of biopsies from patients given CRS-207, a LADD immunotherapy, showed enhancement of infiltrating CD8+ T cells, mature dendritic cells, macrophages and natural killer cells, all specialized immune system cells involved in eradicating tumor cells. Consistent with this clinical data, the preclinical findings showed that LADD induced a potent favorable change in the tumor microenvironment including increased CD8+ T cells, infiltration of neutrophils, and a reduction of regulatory T cells, creating an environment for the tumor susceptible to anti-cancer treatments.

Poster B020: STING activation in the tumor microenvironment using a synthetic human STING-activating cyclic dinucleotide induces potent anti-tumor immunity
In a poster session on Monday, September 26, 2016, Sarah McWhirter, Ph.D., a scientist at Aduro, presented preclinical data on ADU-S100, a STING Pathway Activator. The data demonstrate that ADU-S100 stimulates the production of interferon-beta by all human STING alleles. Importantly, the results showed that injecting ADU-S100 directly into the tumor microenvironment induced T cells with tumor-specific antigenic repertoire leading to durable anti-tumor immunity. In addition, the combination of STING activation in the tumor microenvironment and PD-1 blockade enhances antitumor efficacy. There is an ongoing Phase 1 first-in-human clinical study to evaluate the safety, tolerability and possible anti-tumor activity of ADU-S100 in patients with cutaneously-accessible advanced metastatic solid tumors or lymphomas.

About the Tumor Microenvironment
The tumor microenvironment is the cellular environment in which the tumor exists, and, along with cancerous cells, includes support cells, immune cells, surrounding blood vessels, and the extracellular matrix. The tumor cells and the surrounding microenvironment are closely related and interact constantly. Tumors influence the microenvironment by releasing signals that promote tumor growth, immune tolerance and immune suppression. When tumors initially form, the body’s immune system recruits and activates a host of immune cells to fight the invading tumor. However, in cases where cancer develops, tumors are eventually able to evade the immune system by changing their microenvironment to inhibit the ability of the immune system to recognize and destroy the tumor thus allowing for tumor outgrowth and formation of metastasis.

About LADD and CRS-207
LADD is Aduro’s proprietary platform of live, attenuated double-deleted Listeria monocytogenes strains that have been engineered to generate a potent innate immune response and to express tumor-associated antigens to induce tumor-specific T cell-mediated immunity.

CRS-207 is one of a family of product candidates based on Aduro’s LADD immunotherapy platform that has been engineered to express the tumor-associated antigen mesothelin, which is over-expressed in many cancers including mesothelioma and pancreatic, non-small cell lung, ovarian, endometrial and gastric cancers.

About STING Pathway Activator Platform
The Aduro-proprietary STING Pathway Activator product candidates, including ADU-S100 (MIW815), are synthetic small molecule immune modulators that are designed to target and activate human STING. STING is generally expressed at high levels in immune cells, including dendritic cells. Once activated, the STING receptor initiates a profound innate immune response through multiple pathways, inducing the expression of a broad profile of cytokines, including interferons and chemokines. This subsequently leads to the development of a systemic tumor antigen-specific T cell adaptive immune response.

Bristol-Myers Squibb and Nektar Therapeutics Announce Oncology Clinical Collaboration to Evaluate the Combination of Opdivo (nivolumab) and NKTR-214

On September 27, 2016 Bristol-Myers Squibb Company (NYSE:BMY) and Nektar Therapeutics (Nasdaq:NKTR) reported a new clinical collaboration to evaluate Bristol-Myers Squibb’s Opdivo (nivolumab) with Nektar’s investigational medicine, NKTR-214, as a potential combination treatment regimen in five tumor types and seven potential indications (Press release, Bristol-Myers Squibb, SEP 27, 2016, View Source [SID:SID1234515426]). Opdivo is a PD-1 immune checkpoint inhibitor designed to overcome immune suppression. NKTR-214 is an investigational immuno-stimulatory therapy designed to expand specific cancer-fighting T cells and natural killer (NK) cells directly in the tumor micro-environment and increase expression of PD-1 on these immune cells.

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"We are excited to explore the potential benefits in multiple types of cancer of the combination of Opdivo with Nektar’s innovative cancer immunotherapy," said Fouad Namouni, M.D., Head of Oncology, Bristol-Myers Squibb. "We believe that a combination regimen which utilizes two different and complementary mechanisms designed to harness the body’s own immune system to fight cancer has the potential to provide new treatment options for patients."

The Phase 1/2 clinical trials will evaluate the potential for the combination of Opdivo and NKTR-214 to show improved and sustained efficacy and tolerability above the current standard of care in melanoma, kidney, colorectal, bladder and non-small cell lung cancer patients. An initial dose-escalation trial is underway with Opdivo and NKTR-214.

Bristol-Myers Squibb and Nektar will equally share costs of the combined therapy trials. Nektar will maintain its global commercial rights to NKTR-214.

"We’re very pleased to be collaborating with Bristol-Myers Squibb, a global leader in immuno-oncology, in order to advance quickly the development of NKTR-214 with a PD-1 immune checkpoint inhibitor," said Howard W. Robin, President and CEO of Nektar Therapeutics. "NKTR-214 is designed to grow tumor infiltrating lymphocytes (TILs) in vivo and replenish the immune system, which is critically important as many patients battling cancer lack sufficient TIL populations to benefit from approved checkpoint inhibitor therapies. The combination of checkpoint inhibition with T cell growth could lead to synergistic effects that may provide a new treatment option for patients."

Opdivo was the first PD-1 immune checkpoint inhibitor to receive regulatory approval anywhere in the world in July 2014, and currently has regulatory approval in 54 countries including the United States, Japan, and in the European Union.

NKTR-214 is an experimental therapy designed to stimulate cancer-killing immune cells in the body by targeting CD122 specific receptors found on the surface of these immune cells, known as CD8+ effector T cells and Natural Killer (NK) cells. In preclinical studies, treatment with NKTR-214 resulted in a rapid expansion of these cells and mobilization into the tumor micro-environment.1,2 NKTR-214 has an antibody-like dosing regimen similar to the existing checkpoint inhibitor class of approved medicines. A Phase 1/2 clinical study is ongoing to evaluate single-agent NKTR-214 in cancer patients.

Bristol-Myers Squibb & Immuno-Oncology: Advancing Oncology Research

At Bristol-Myers Squibb, we have a vision for the future of cancer care that is focused on Immuno-Oncology, now considered a major treatment choice alongside surgery, radiation, chemotherapy and targeted therapies for certain types of cancer.

We have a comprehensive clinical portfolio of investigational and approved Immuno-Oncology agents, many of which were discovered and developed by our scientists. Our ongoing Immuno-Oncology clinical program is looking at broad patient populations, across multiple solid tumors and hematologic malignancies, and lines of therapy and histologies, with the intent of powering our trials for overall survival and other important measures like durability of response. We pioneered the research leading to the first regulatory approval for the combination of two Immuno-Oncology agents and continue to study the role of combinations in cancer.

We are also investigating other immune system pathways in the treatment of cancer including CTLA-4, CD-137, KIR, SLAMF7, PD-1, GITR, CSF1R, IDO and LAG-3. These pathways may lead to potential new treatment options – in combination or monotherapy – to help patients fight different types of cancers.

Our collaboration with academia, as well as small and large biotech and pharmaceutical companies, to research the potential of Immuno-Oncology and non-Immuno-Oncology combinations helps achieve our goal of providing new treatment options in clinical practice.

At Bristol-Myers Squibb, we are committed to changing survival expectations in hard-to-treat cancers and the way patients live with cancer.

About Opdivo

Cancer cells may exploit "regulatory" pathways, such as checkpoint pathways, to hide from the immune system and shield the tumor from immune attack. Opdivo is a PD-1 immune checkpoint inhibitor that binds to the checkpoint receptor PD-1 expressed on activated T-cells, and blocks the binding of PD-L1 and PD-L2, preventing the PD-1 pathway’s suppressive signaling on the immune system, including the interference with an anti-tumor immune response.

Opdivo’s broad global development program is based on Bristol-Myers Squibb’s understanding of the biology behind Immuno-Oncology. Our company is at the forefront of researching the potential of Immuno-Oncology to extend survival in hard-to-treat cancers. This scientific expertise serves as the basis for the Opdivo development program, which includes a broad range of Phase 3 clinical trials evaluating overall survival as the primary endpoint across a variety of tumor types. The Opdivo trials have also contributed toward the clinical and scientific understanding of the role of biomarkers and how patients may benefit from Opdivo across the continuum of PD-L1 expression. To date, the Opdivo clinical development program has enrolled more than 18,000 patients.

U.S. INDICATIONS & IMPORTANT SAFETY INFORMATION

INDICATIONS

OPDIVO (nivolumab) as a single agent is indicated for the treatment of patients with BRAF V600 wild-type unresectable or metastatic melanoma.

OPDIVO (nivolumab) as a single agent is indicated for the treatment of patients with BRAF V600 mutation-positive unresectable or metastatic melanoma. This indication is approved under accelerated approval based on progression-free survival. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

OPDIVO (nivolumab), in combination with YERVOY (ipilimumab), is indicated for the treatment of patients with unresectable or metastatic melanoma. This indication is approved under accelerated approval based on progression-free survival. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

OPDIVO (nivolumab) is indicated for the treatment of patients with metastatic non-small cell lung cancer (NSCLC) with progression on or after platinum-based chemotherapy. Patients with EGFR or ALK genomic tumor aberrations should have disease progression on FDA-approved therapy for these aberrations prior to receiving OPDIVO.

OPDIVO (nivolumab) is indicated for the treatment of patients with advanced renal cell carcinoma (RCC) who have received prior anti-angiogenic therapy.

OPDIVO (nivolumab) is indicated for the treatment of patients with classical Hodgkin lymphoma (cHL) that has relapsed or progressed after autologous hematopoietic stem cell transplantation (HSCT) and post-transplantation brentuximab vedotin. This indication is approved under accelerated approval based on overall response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.

Please refer to the end of the Important Safety Information for a brief description of the patient populations studied in the CheckMate trials.

IMPORTANT SAFETY INFORMATION

WARNING: IMMUNE-MEDIATED ADVERSE REACTIONS

YERVOY can result in severe and fatal immune-mediated adverse reactions. These immune-mediated reactions may involve any organ system; however, the most common severe immune-mediated adverse reactions are enterocolitis, hepatitis, dermatitis (including toxic epidermal necrolysis), neuropathy, and endocrinopathy. The majority of these immune-mediated reactions initially manifested during treatment; however, a minority occurred weeks to months after discontinuation of YERVOY.

Assess patients for signs and symptoms of enterocolitis, dermatitis, neuropathy, and endocrinopathy and evaluate clinical chemistries including liver function tests (LFTs), adrenocorticotropic hormone (ACTH) level, and thyroid function tests at baseline and before each dose.

Permanently discontinue YERVOY and initiate systemic high-dose corticosteroid therapy for severe immune-mediated reactions.

Immune-Mediated Pneumonitis

Immune-mediated pneumonitis, including fatal cases, occurred with OPDIVO treatment. Across the clinical trial experience with solid tumors, fatal immune-mediated pneumonitis occurred with OPDIVO. In addition, in Checkmate 069, there were six patients who died without resolution of abnormal respiratory findings. Monitor patients for signs with radiographic imaging and symptoms of pneumonitis. Administer corticosteroids for Grade 2 or greater pneumonitis. Permanently discontinue for Grade 3 or 4 and withhold until resolution for Grade 2. In Checkmate 069 and 067, immune-mediated pneumonitis occurred in 6% (25/407) of patients receiving OPDIVO with YERVOY: Fatal (n=1), Grade 3 (n=6), Grade 2 (n=17), and Grade 1 (n=1). In Checkmate 037, 066, and 067, immune-mediated pneumonitis occurred in 1.8% (14/787) of patients receiving OPDIVO: Grade 3 (n=2) and Grade 2 (n=12). In Checkmate 057, immune-mediated pneumonitis, including interstitial lung disease, occurred in 3.4% (10/287) of patients: Grade 3 (n=5), Grade 2 (n=2), and Grade 1 (n=3). In Checkmate 025, pneumonitis, including interstitial lung disease, occurred in 5% (21/406) of patients receiving OPDIVO and 18% (73/397) of patients receiving everolimus. Immune-mediated pneumonitis occurred in 4.4% (18/406) of patients receiving OPDIVO: Grade 4 (n=1), Grade 3 (n=4), Grade 2 (n=12), and Grade 1 (n=1). In Checkmate 205 and 039, pneumonitis, including interstitial lung disease, occurred in 4.9% (13/263) of patients receiving OPDIVO. Immune-mediated pneumonitis occurred in 3.4% (9/263) of patients receiving OPDIVO: Grade 3 (n=1) and Grade 2 (n=8).

Immune-Mediated Colitis

Immune-mediated colitis can occur with OPDIVO treatment. Monitor patients for signs and symptoms of colitis. Administer corticosteroids for Grade 2 (of more than 5 days duration), 3, or 4 colitis. As a single agent, withhold OPDIVO for Grade 2 or 3 and permanently discontinue for Grade 4 or recurrent colitis upon restarting OPDIVO. When administered with YERVOY, withhold OPDIVO for Grade 2 and permanently discontinue for Grade 3 or 4 or recurrent colitis upon restarting OPDIVO. In Checkmate 069 and 067, diarrhea or colitis occurred in 56% (228/407) of patients receiving OPDIVO with YERVOY. Immune-mediated colitis occurred in 26% (107/407) of patients: Grade 4 (n=2), Grade 3 (n=60), Grade 2 (n=32), and Grade 1 (n=13). In Checkmate 037, 066, and 067, diarrhea or colitis occurred in 31% (242/787) of patients receiving OPDIVO. Immune-mediated colitis occurred in 4.1% (32/787) of patients: Grade 3 (n=20), Grade 2 (n=10), and Grade 1 (n=2). In Checkmate 057, diarrhea or colitis occurred in 17% (50/287) of patients receiving OPDIVO. Immune-mediated colitis occurred in 2.4% (7/287) of patients: Grade 3 (n=3), Grade 2 (n=2), and Grade 1 (n=2). In Checkmate 025, diarrhea or colitis occurred in 25% (100/406) of patients receiving OPDIVO and 32% (126/397) of patients receiving everolimus. Immune-mediated diarrhea or colitis occurred in 3.2% (13/406) of patients receiving OPDIVO: Grade 3 (n=5), Grade 2 (n=7), and Grade 1 (n=1). In Checkmate 205 and 039, diarrhea or colitis occurred in 30% (80/263) of patients receiving OPDIVO. Immune-mediated diarrhea (Grade 3) occurred in 1.1% (3/263) of patients.

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal (diarrhea of ≥7 stools above baseline, fever, ileus, peritoneal signs; Grade 3-5) immune-mediated enterocolitis occurred in 34 (7%) patients. Across all YERVOY-treated patients in that study (n=511), 5 (1%) developed intestinal perforation, 4 (0.8%) died as a result of complications, and 26 (5%) were hospitalized for severe enterocolitis.

Immune-Mediated Hepatitis

Immune-mediated hepatitis can occur with OPDIVO treatment. Monitor patients for abnormal liver tests prior to and periodically during treatment. Administer corticosteroids for Grade 2 or greater transaminase elevations. Withhold for Grade 2 and permanently discontinue for Grade 3 or 4 immune-mediated hepatitis. In Checkmate 069 and 067, immune-mediated hepatitis occurred in 13% (51/407) of patients receiving OPDIVO with YERVOY: Grade 4 (n=8), Grade 3 (n=37), Grade 2 (n=5), and Grade 1 (n=1). In Checkmate 037, 066, and 067, immune-mediated hepatitis occurred in 2.3% (18/787) of patients receiving OPDIVO: Grade 4 (n=3), Grade 3 (n=11), and Grade 2 (n=4). In Checkmate 057, one patient (0.3%) developed immune-mediated hepatitis. In Checkmate 025, there was an increased incidence of liver test abnormalities compared to baseline in AST (33% vs 39%), alkaline phosphatase (32% vs 32%), ALT (22% vs 31%), and total bilirubin (9% vs 3.5%) in the OPDIVO and everolimus arms, respectively. Immune-mediated hepatitis requiring systemic immunosuppression occurred in 1.5% (6/406) of patients receiving OPDIVO: Grade 3 (n=5) and Grade 2 (n=1). In Checkmate 205 and 039, hepatitis occurred in 11% (30/263) of patients receiving OPDIVO. Immune-mediated hepatitis occurred in 3.4% (9/263): Grade 3 (n=7) and Grade 2 (n=2).

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal hepatotoxicity (AST or ALT elevations >5x the ULN or total bilirubin elevations >3x the ULN; Grade 3-5) occurred in 8 (2%) patients, with fatal hepatic failure in 0.2% and hospitalization in 0.4%.

Immune-Mediated Dermatitis

In a separate Phase 3 study of YERVOY 3 mg/kg, severe, life-threatening, or fatal immune-mediated dermatitis (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis, or rash complicated by full thickness dermal ulceration, or necrotic, bullous, or hemorrhagic manifestations; Grade 3-5) occurred in 13 (2.5%) patients. 1 (0.2%) patient died as a result of toxic epidermal necrolysis. 1 additional patient required hospitalization for severe dermatitis.

Immune-Mediated Neuropathies

In a separate Phase 3 study of YERVOY 3 mg/kg, 1 case of fatal Guillain-Barré syndrome and 1 case of severe (Grade 3) peripheral motor neuropathy were reported.

Immune-Mediated Endocrinopathies

Hypophysitis, adrenal insufficiency, thyroid disorders, and type 1 diabetes mellitus can occur with OPDIVO treatment. Monitor patients for signs and symptoms of hypophysitis, signs and symptoms of adrenal insufficiency during and after treatment, thyroid function prior to and periodically during treatment, and hyperglycemia. Administer corticosteroids for Grade 2 or greater hypophysitis. Withhold for Grade 2 or 3 and permanently discontinue for Grade 4 hypophysitis. Administer corticosteroids for Grade 3 or 4 adrenal insufficiency. Withhold for Grade 2 and permanently discontinue for Grade 3 or 4 adrenal insufficiency. Administer hormone-replacement therapy for hypothyroidism. Initiate medical management for control of hyperthyroidism. Administer insulin for type 1 diabetes. Withhold OPDIVO for Grade 3 and permanently discontinue for Grade 4 hyperglycemia.

In Checkmate 069 and 067, hypophysitis occurred in 9% (36/407) of patients receiving OPDIVO with YERVOY: Grade 3 (n=8), Grade 2 (n=25), and Grade 1 (n=3). In Checkmate 037, 066, and 067, hypophysitis occurred in 0.9% (7/787) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=3), and Grade 1 (n=2). In Checkmate 025, hypophysitis occurred in 0.5% (2/406) of patients receiving OPDIVO: Grade 3 (n=1) and Grade 1 (n=1). In Checkmate 069 and 067, adrenal insufficiency occurred in 5% (21/407) of patients receiving OPDIVO with YERVOY: Grade 4 (n=1), Grade 3 (n=7), Grade 2 (n=11), and Grade 1 (n=2). In Checkmate 037, 066, and 067, adrenal insufficiency occurred in 1% (8/787) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=5), and Grade 1 (n=1). In Checkmate 057, 0.3% (1/287) of OPDIVO-treated patients developed adrenal insufficiency. In Checkmate 025, adrenal insufficiency occurred in 2.0% (8/406) of patients receiving OPDIVO: Grade 3 (n=3), Grade 2 (n=4), and Grade 1 (n=1). In Checkmate 205 and 039, adrenal insufficiency (Grade 2) occurred in 0.4% (1/263) of patients receiving OPDIVO. In Checkmate 069 and 067, hypothyroidism or thyroiditis occurred in 22% (89/407) of patients receiving OPDIVO with YERVOY: Grade 3 (n=6), Grade 2 (n=47), and Grade 1 (n=36). Hyperthyroidism occurred in 8% (34/407) of patients: Grade 3 (n=4), Grade 2 (n=17), and Grade 1 (n=13). In Checkmate 037, 066, and 067, hypothyroidism or thyroiditis occurred in 9% (73/787) of patients receiving OPDIVO: Grade 3 (n=1), Grade 2 (n=37), Grade 1 (n=35). Hyperthyroidism occurred in 4.4% (35/787) of patients receiving OPDIVO: Grade 3 (n=1), Grade 2 (n=12), and Grade 1 (n=22). In Checkmate 057, Grade 1 or 2 hypothyroidism, including thyroiditis, occurred in 7% (20/287) and elevated thyroid stimulating hormone occurred in 17% of patients receiving OPDIVO. Grade 1 or 2 hyperthyroidism occurred in 1.4% (4/287) of patients. In Checkmate 025, thyroid disease occurred in 11% (43/406) of patients receiving OPDIVO, including one Grade 3 event, and in 3.0% (12/397) of patients receiving everolimus. Hypothyroidism/thyroiditis occurred in 8% (33/406) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=17), and Grade 1 (n=14). Hyperthyroidism occurred in 2.5% (10/406) of patients receiving OPDIVO: Grade 2 (n=5) and Grade 1 (n=5). In Checkmate 205 and 039, hypothyroidism/thyroiditis occurred in 12% (32/263) of patients receiving OPDIVO: Grade 2 (n=18) and Grade 1: (n=14). Hyperthyroidism occurred in 1.5% (4/263) of patients receiving OPDIVO: Grade 2: (n=3) and Grade 1 (n=1). In Checkmate 069 and 067, diabetes mellitus or diabetic ketoacidosis occurred in 1.5% (6/407) of patients: Grade 4 (n=3), Grade 3 (n=1), Grade 2 (n=1), and Grade 1 (n=1). In Checkmate 037, 066, and 067, diabetes mellitus or diabetic ketoacidosis occurred in 0.8% (6/787) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=3), and Grade 1 (n=1). In Checkmate 025, hyperglycemic adverse events occurred in 9% (37/406) patients. Diabetes mellitus or diabetic ketoacidosis occurred in 1.5% (6/406) of patients receiving OPDIVO: Grade 3 (n=3), Grade 2 (n=2), and Grade 1 (n=1). In Checkmate 205 and 039, diabetes mellitus occurred in 0.8% (2/263) of patients receiving OPDIVO: Grade 3 (n=1) and Grade 1 (n=1).

In a separate Phase 3 study of YERVOY 3 mg/kg, severe to life-threatening immune-mediated endocrinopathies (requiring hospitalization, urgent medical intervention, or interfering with activities of daily living; Grade 3-4) occurred in 9 (1.8%) patients. All 9 patients had hypopituitarism, and some had additional concomitant endocrinopathies such as adrenal insufficiency, hypogonadism, and hypothyroidism. 6 of the 9 patients were hospitalized for severe endocrinopathies.

Immune-Mediated Nephritis and Renal Dysfunction

Immune-mediated nephritis can occur with OPDIVO treatment. Monitor patients for elevated serum creatinine prior to and periodically during treatment. For Grade 2 or 3 increased serum creatinine, withhold and administer corticosteroids; if worsening or no improvement occurs, permanently discontinue. Administer corticosteroids for Grade 4 serum creatinine elevation and permanently discontinue. In Checkmate 069 and 067, immune-mediated nephritis and renal dysfunction occurred in 2.2% (9/407) of patients: Grade 4 (n=4), Grade 3 (n=3), and Grade 2 (n=2). In Checkmate 037, 066, and 067, nephritis and renal dysfunction of any grade occurred in 5% (40/787) of patients receiving OPDIVO. Immune-mediated nephritis and renal dysfunction occurred in 0.8% (6/787) of patients: Grade 3 (n=4) and Grade 2 (n=2). In Checkmate 057, Grade 2 immune-mediated renal dysfunction occurred in 0.3% (1/287) of patients receiving OPDIVO. In Checkmate 025, renal injury occurred in 7% (27/406) of patients receiving OPDIVO and 3.0% (12/397) of patients receiving everolimus. Immune-mediated nephritis and renal dysfunction occurred in 3.2% (13/406) of patients receiving OPDIVO: Grade 5 (n=1), Grade 4 (n=1), Grade 3 (n=5), and Grade 2 (n=6). In Checkmate 205 and 039, nephritis and renal dysfunction occurred in 4.9% (13/263) of patients treated with OPDIVO. This included one reported case (0.3%) of Grade 3 autoimmune nephritis.

Immune-Mediated Rash

Immune-mediated rash can occur with OPDIVO treatment. Severe rash (including rare cases of fatal toxic epidermal necrolysis) occurred in the clinical program of OPDIVO. Monitor patients for rash. Administer corticosteroids for Grade 3 or 4 rash. Withhold for Grade 3 and permanently discontinue for Grade 4. In Checkmate 069 and 067, immune-mediated rash occurred in 22.6% (92/407) of patients receiving OPDIVO with YERVOY: Grade 3 (n=15), Grade 2 (n=31), and Grade 1 (n=46). In Checkmate 037, 066, and 067, immune-mediated rash occurred in 9% (72/787) of patients receiving OPDIVO: Grade 3 (n=7), Grade 2 (n=15), and Grade 1 (n=50). In Checkmate 057, immune-mediated rash occurred in 6% (17/287) of patients receiving OPDIVO including four Grade 3 cases. In Checkmate 025, rash occurred in 28% (112/406) of patients receiving OPDIVO and 36% (143/397) of patients receiving everolimus. Immune-mediated rash, defined as a rash treated with systemic or topical corticosteroids, occurred in 7% (30/406) of patients receiving OPDIVO: Grade 3 (n=4), Grade 2 (n=7), and Grade 1 (n=19). In Checkmate 205 and 039, rash occurred in 22% (58/263) of patients receiving OPDIVO. Immune-mediated rash occurred in 7% (18/263) of patients on OPDIVO: Grade 3 (n=4), Grade 2 (n=3), and Grade 1 (n=11).

Immune-Mediated Encephalitis

Immune-mediated encephalitis can occur with OPDIVO treatment. Withhold OPDIVO in patients with new-onset moderate to severe neurologic signs or symptoms and evaluate to rule out other causes. If other etiologies are ruled out, administer corticosteroids and permanently discontinue OPDIVO for immune-mediated encephalitis. In Checkmate 067, encephalitis was identified in one patient (0.2%) receiving OPDIVO with YERVOY. In Checkmate 057, fatal limbic encephalitis occurred in one patient (0.3%) receiving OPDIVO. In Checkmate 205 and 039, encephalitis occurred in 0.8% (2/263) of patients after allogeneic HSCT after OPDIVO.

Other Immune-Mediated Adverse Reactions

Based on the severity of adverse reaction, permanently discontinue or withhold treatment, administer high-dose corticosteroids, and, if appropriate, initiate hormone-replacement therapy. In < 1.0% of patients receiving OPDIVO, the following clinically significant, immune-mediated adverse reactions occurred: uveitis, iritis, pancreatitis, facial and abducens nerve paresis, demyelination, polymyalgia rheumatica, autoimmune neuropathy, Guillain-Barré syndrome, hypopituitarism, systemic inflammatory response syndrome, gastritis, duodenitis, and sarcoidosis. Across clinical trials of OPDIVO as a single agent administered at doses of 3 mg/kg and 10 mg/kg, additional clinically significant, immune-mediated adverse reactions were identified: motor dysfunction, vasculitis, and myasthenic syndrome.

Infusion Reactions

Severe infusion reactions have been reported in <1.0% of patients in clinical trials of OPDIVO. Discontinue OPDIVO in patients with Grade 3 or 4 infusion reactions. Interrupt or slow the rate of infusion in patients with Grade 1 or 2. In Checkmate 069 and 067, infusion- related reactions occurred in 2.5% (10/407) of patients receiving OPDIVO with YERVOY: Grade 2 (n=6) and Grade 1 (n=4). In Checkmate 037, 066, and 067, Grade 2 infusion related reactions occurred in 2.7% (21/787) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=8), and Grade 1 (n=11). In Checkmate 057, Grade 2 infusion reactions requiring corticosteroids occurred in 1.0% (3/287) of patients receiving OPDIVO. In Checkmate 025, hypersensitivity/infusion-related reactions occurred in 6% (25/406) of patients receiving OPDIVO and 1.0% (4/397) of patients receiving everolimus. In Checkmate 205 and 039, hypersensitivity/infusion-related reactions occurred in 16% (42/263) of patients receiving OPDIVO: Grade 3 (n=2), Grade 2 (n=24), and Grade 1 (n=16).

Complications of Allogeneic HSCT after OPDIVO

Complications, including fatal events, occurred in patients who received allogeneic HSCT after OPDIVO. Outcomes were evaluated in 17 patients from Checkmate 205 and 039, who underwent allogeneic HSCT after discontinuing OPDIVO (15 with reduced-intensity conditioning, 2 with myeloablative conditioning). Thirty-five percent (6/17) of patients died from complications of allogeneic HSCT after OPDIVO. Five deaths occurred in the setting of severe or refractory GVHD. Grade 3 or higher acute GVHD was reported in 29% (5/17) of patients. Hyperacute GVHD was reported in 20% (n=2) of patients. A steroid-requiring febrile syndrome, without an identified infectious cause, was reported in 35% (n=6) of patients. Two cases of encephalitis were reported: Grade 3 (n=1) lymphocytic encephalitis without an identified infectious cause, and Grade 3 (n=1) suspected viral encephalitis. Hepatic veno-occlusive disease (VOD) occurred in one patient, who received reduced-intensity conditioned allogeneic SCT and died of GVHD and multi-organ failure. Other cases of hepatic VOD after reduced-intensity conditioned allogeneic HSCT have also been reported in patients with lymphoma who received a PD-1 receptor blocking antibody before transplantation. Cases of fatal hyperacute GVHD have also been reported. These complications may occur despite intervening therapy between PD-1 blockade and allogeneic HSCT.

Follow patients closely for early evidence of transplant-related complications such as hyperacute GVHD, severe (Grade 3 to 4) acute GVHD, steroid-requiring febrile syndrome, hepatic VOD, and other immune-mediated adverse reactions, and intervene promptly.

Embryo-fetal Toxicity

Based on their mechanisms of action, OPDIVO and YERVOY can cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with an OPDIVO- or YERVOY- containing regimen and for at least 5 months after the last dose of OPDIVO.

Lactation

It is not known whether OPDIVO or YERVOY is present in human milk. Because many drugs, including antibodies, are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from an OPDIVO-containing regimen, advise women to discontinue breastfeeding during treatment. Advise women to discontinue nursing during treatment with YERVOY and for 3 months following the final dose.

Serious Adverse Reactions

In Checkmate 067, serious adverse reactions (73% and 37%), adverse reactions leading to permanent discontinuation (43% and 14%) or to dosing delays (55% and 28%), and Grade 3 or 4 adverse reactions (72% and 44%) all occurred more frequently in the OPDIVO plus YERVOY arm relative to the OPDIVO arm. The most frequent (≥10%) serious adverse reactions in the OPDIVO plus YERVOY arm and the OPDIVO arm, respectively, were diarrhea (13% and 2.6%), colitis (10% and 1.6%), and pyrexia (10% and 0.6%). In Checkmate 037, serious adverse reactions occurred in 41% of patients receiving OPDIVO. Grade 3 and 4 adverse reactions occurred in 42% of patients receiving OPDIVO. The most frequent Grade 3 and 4 adverse drug reactions reported in 2% to <5% of patients receiving OPDIVO were abdominal pain, hyponatremia, increased aspartate aminotransferase, and increased lipase. In Checkmate 066, serious adverse reactions occurred in 36% of patients receiving OPDIVO. Grade 3 and 4 adverse reactions occurred in 41% of patients receiving OPDIVO. The most frequent Grade 3 and 4 adverse reactions reported in ≥2% of patients receiving OPDIVO were gamma-glutamyltransferase increase (3.9%) and diarrhea (3.4%). In Checkmate 057, serious adverse reactions occurred in 47% of patients receiving OPDIVO. The most frequent serious adverse reactions reported in ≥2% of patients were pneumonia, pulmonary embolism, dyspnea, pleural effusion, and respiratory failure. In Checkmate 025, serious adverse reactions occurred in 47% of patients receiving OPDIVO. The most frequent serious adverse reactions reported in ≥2% of patients were acute kidney injury, pleural effusion, pneumonia, diarrhea, and hypercalcemia. In Checkmate 205 and 039, among all patients (safety population [n=263]), adverse reactions leading to discontinuation (4.2%) or to dosing delays (23%) occurred. The most frequent serious adverse reactions reported in ≥1% of patients were infusion-related reaction, pneumonia, pleural effusion, pyrexia, rash and pneumonitis. Ten patients died from causes other than disease progression, including 6 who died from complications of allogeneic HSCT. Serious adverse reactions occurred in 21% of patients in the safety population (n=263) and 27% of patients in the subset of patients evaluated for efficacy (efficacy population [n=95]).

Common Adverse Reactions

In Checkmate 067, the most common (≥20%) adverse reactions in the OPDIVO plus YERVOY arm were fatigue (59%), rash (53%), diarrhea (52%), nausea (40%), pyrexia (37%), vomiting (28%), and dyspnea (20%). The most common (≥20%) adverse reactions in the OPDIVO arm were fatigue (53%), rash (40%), diarrhea (31%), and nausea (28%). In Checkmate 037, the most common adverse reaction (≥20%) reported with OPDIVO was rash (21%). In Checkmate 066, the most common adverse reactions (≥20%) reported with OPDIVO vs dacarbazine were fatigue (49% vs 39%), musculoskeletal pain (32% vs 25%), rash (28% vs 12%), and pruritus (23% vs 12%). In Checkmate 057, the most common adverse reactions (≥20%) reported with OPDIVO were fatigue (49%), musculoskeletal pain (36%), cough (30%), decreased appetite (29%), and constipation (23%). In Checkmate 025, the most common adverse reactions (≥20%) reported in patients receiving OPDIVO vs everolimus were asthenic conditions (56% vs 57%), cough (34% vs 38%), nausea (28% vs 29%), rash (28% vs 36%), dyspnea (27% vs 31%), diarrhea (25% vs 32%), constipation (23% vs 18%), decreased appetite (23% vs 30%), back pain (21% vs 16%), and arthralgia (20% vs 14%). In Checkmate 205 and 039, among all patients (safety population [n=263]) and the subset of patients in the efficacy population (n=95), respectively, the most common adverse reactions (reported in at least 20%) were fatigue (32% and 43%), upper respiratory tract infection (28% and 48%), pyrexia (24% and 35%), diarrhea (23% and 30%), and cough (22% and 35%). In the subset of patients in the efficacy population (n=95), the most common adverse reactions also included rash (31%), musculoskeletal pain (27%), pruritus (25%), nausea (23%), arthralgia (21%), and peripheral neuropathy (21%).

In a separate Phase 3 study of YERVOY 3 mg/kg, the most common adverse reactions (≥5%) in patients who received YERVOY at 3 mg/kg were fatigue (41%), diarrhea (32%), pruritus (31%), rash (29%), and colitis (8%).

CHECKMATE Trials and Patient Populations

Checkmate 069 and 067 – advanced melanoma alone or in combination with YERVOY; Checkmate 037 and 066 – advanced melanoma; Checkmate 057 – non-squamous non-small cell lung cancer (NSCLC); Checkmate 025 – renal cell carcinoma; Checkmate 205/039 – classical Hodgkin lymphoma

Please see U.S. Full Prescribing Information, including Boxed WARNING regarding immune-mediated adverse reactions, for YERVOY.

Please see U.S. Full Prescribing Information for OPDIVO.

Galena Biopharma Presents GALE-301 Folate Binding Protein Expression Data at the CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference

On September 27, 2016 Galena Biopharma, Inc. (NASDAQ:GALE), a biopharmaceutical company committed to the development and commercialization of hematology and oncology therapeutics that address unmet medical needs, reported data from the Company’s GALE-301 Phase 1/2a clinical trial was presented at the CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference (CIMT) (Free CIMT Whitepaper) in New York, NY (Press release, Galena Biopharma, SEP 27, 2016, View Source [SID:SID1234515437]). The focus of the presentation was on the association between clinical outcomes and folate binding protein (FBP) expression. GALE-301 is administered with the adjuvant granulocyte macrophage-colony stimulating factor (GM-CSF) for the prevention of cancer recurrence in disease-free ovarian and endometrial cancer patients.

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Poster #B007, entitled, "Improved disease-free survival in endometrial and ovarian cancer patients with low folate binding protein expression after treatment with the E39 peptide vaccine in a phase I/IIa trial," reported clinical outcomes based on FBP expression level. The data revealed a disease free survival (DFS) benefit in patients with low FBP expression (FBPlo), but not in patients with high FBP expression (FBPhi).

"The results presented today are quite informative to our program as little is known about the effects of FBP expression levels on FBP-directed therapies, including the GALE-301 (E39) vaccine," said Bijan Nejadnik, M.D., Executive Vice President and Chief Medical Officer. "The fact that the low expressors appeared to show a better DFS benefit may be due to immunotolerance from significantly higher endogenous exposure to the FBP antigen. This is also something we explored with our GALE-302, or attenuated version, of the peptide. These findings warrant further study as they may help inform the design and target patient populations for the next clinical trial for our folate binding protein development programs."

Thirty-eight enrolled patients underwent FBP expression testing, and there were no clinicopathologic differences between the vaccine group (VG n=18) and the control group (CG n=20) or within FBPhi (VG n=10; CG n=9) and FBPlo (VG n=8; CG n=11;) (p≥0.1). There were significantly more primary tumors in FBPlo vs. FBPhi (p=0.027) and median follow up for the study was 16.3 months. While there was no significant difference in overall DFS between the CG and the VG (34.6% vs. 34.6%, p=0.208), in FBPlo patients, there was improved DFS in the VG at 85.7% vs. the CG at 17.5% (p=0.01). There was no such difference in FBPhi patients (VG 13.9% vs. CG 44.4%, p=0.83). Though groups were small, there was a dose-dependent effect in the FBPlo patients receiving 1000mcg (n=4) having improved DFS compared to the <1000mcg patients (n=4) and the CG (n=3) (100% vs. 66.7% vs.17.5%, respectively, p=0.03). Comparing FBPlo and FBPhi patients in the VG, the FBPlo patients had improved DFS (85.7% vs. 13.9%, p=0.052). In the CG, FBPlo patients did worse (17.5% vs. 44.4% in FBPhi, p=0.371).

Disease-free, HLA-A2-positve patients were vaccinated, while HLA-A2-negative patients were followed as untreated controls. The vaccine group received six monthly inoculations of GALE-301+GM-CSF, including either 100, 500, or 1000 mcg of peptide and 250mcg of GM-CSF. FBP expression testing was performed by immunohistochemistry and the results were graded 0-4+ based on the percentage of positively staining cells. Patient’s tumors were then categorized as FBPlo if scored 0-1+ or FBPhi if 2-4+. The patients were monitored for evidence of clinical recurrence through the standard of care follow-up by their treating oncology team. Demographics, FBP expression, and DFS were analyzed using appropriate statistical tests.

About GALE-301

GALE-301 is a cancer immunotherapy that consists of a peptide derived from Folate Binding Protein (FBP) combined with the immune adjuvant, granulocyte macrophage-colony stimulating factor (GM-CSF) for the prevention of cancer recurrence in the adjuvant setting. FBP is a well-validated therapeutic target that is highly over-expressed in ovarian, endometrial and breast cancers. FBP is the source of immunogenic peptides that can stimulate cytotoxic T lymphocytes (CTLs) to recognize and destroy FBP-expressing cancer cells. Enrollment has been completed in the GALE-301 Phase 2a portion of the Phase 1/2a clinical trial in two gynecological cancers: ovarian and endometrial adenocarcinomas (ClinicalTrials.gov Identifier: NCT01580696).

About Ovarian/Endometrial Cancers

New cases of ovarian cancer occur at an annual rate of 11.9 per 100,000 women in the U.S., with an estimated 22,280 new cases and 14,240 deaths in 2016. Approximately 46.2% of ovarian cancer patients are expected to survive five years after diagnosis. Approximately 1.3% of women will be diagnosed with ovarian cancer at some point during their lifetime (2011 – 2013 data). The prevalence data from 2013 showed an estimated 195,767 women living with ovarian cancer in the United States.

Due to the lack of specific symptoms, the majority of ovarian cancer patients are diagnosed at later stages of the disease, with an estimated 75% of women presenting with advanced-stage (III or IV) disease. These patients have their tumors routinely surgically debulked to minimal residual disease, and then are treated with platinum- and/or taxane-based chemotherapy. While many patients respond to this treatment regimen and become clinically free-of-disease, the majority of these patients will relapse. Depending upon their level of residual disease, the risk for recurrence after completion of primary therapy ranges from 60% to 85%. Unfortunately for these women, once the disease recurs, treatment options are limited and the disease remains incurable.

New cases of endometrial cancer occur at an annual rate of 25.4 per 100,000 women in the U.S., with an estimated 60,050 new cases and 10,470 deaths in 2016. Approximately 81.7% of endometrial cancer patients are expected to survive five years after diagnosis. Approximately 2.8% of women will be diagnosed with ovarian cancer at some point during their lifetime (2010 – 2013 data). The prevalence data from 2013 showed an estimated 635,437 women living with endometrial cancer in the United States.

Source: National Cancer Institute Surveillance, Epidemiology, and End Results Program