Physician Underestimation of the Risk of Gastrointestinal Stromal Tumor Recurrence After Resection.

Patients with resectable gastrointestinal stromal tumors (GISTs) might not receive the recommended duration of adjuvant therapy if their risk of recurrence is underestimated, which can have an impact on their recurrence-free survival (RFS).
To determine the extent of physician underestimation of risk of recurrence after complete primary GIST resection, the impact of underestimation on planned adjuvant treatment duration, and the association among high-risk patients of planned adjuvant treatment duration and RFS.
This was a retrospective observational medical record review reported by participating oncologists in 2013. US patients with complete primary GIST resection after 2010 were grouped as underestimated or not if their oncologists’ charted risk assessments were lower than assessments based on the Revised National Institutes of Health Consensus Criteria or not. Patients were followed by general community oncologists until death or the end of follow-up.
Fisher exact tests compared planned adjuvant treatment duration between groups. Cox proportional-hazards models estimated the impact of planned adjuvant treatment duration on RFS.
A total of 109 oncologists reported information on 506 patients with GIST after primary resection (65.8% were high-risk and 8.7% were intermediate-risk). Physicians underestimated risk for 190 patients (37.5%); 30.1% of tumors with an intermediate-level mitotic count (6-10 per 50 high-powered fields) and an intermediate tumor size (6-10 cm) were correctly recognized as high-risk, as were 7.5% of nongastric tumors with an intermediate-level mitotic count and a tumor size of 2 to 5 cm. A smaller proportion of high-risk patients in the underestimated vs not-underestimated groups had at least 3 years of planned adjuvant therapy (36.1% vs 65.9%; P < .001). Planned adjuvant treatment of at least 3 years vs less than 3 years among high-risk patients conferred a lower hazard of recurrence and/or death (adjusted hazard ratio, 0.29; P < .001; 95% CI, 0.14-0.59).
Overall, physicians tended to underestimate the risk of recurrence for many patients with GIST, especially for patients with tumors of intermediate size, intermediate-level mitotic count, and nongastric location, which had an impact on planned adjuvant therapy duration. Patients with at least 3 years of planned adjuvant treatment had longer RFS. Improved education on postresection risk assessment and risk reduction is needed.

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8-K – Current report

On March 30, Immune Pharmaceuticals Inc. (NASDAQ:IMNP) ("Immune" or the "Company") reported financial results for the fourth quarter and full year ended December 31, 2015 (Filing, Q4/Annual, Immune Pharmaceuticals, 2015, MAR 30, 2016, View Source [SID:1234510242]). Immune filed its Annual Report on Form 10-K for fiscal year 2015 on March 30, 2016.

2015 Highlights
2015 was an important year for Immune as we formed a new leadership team based in New York City at the Alexandria Center for Life Science. Several key executives with successful track records at both large pharmaceutical and biotech companies have joined Immune, significantly improving our ability to execute our business plan:
· Monica Luchi, MD, MBA, Chief Medical Officer and EVP, Global Drug Development;
· Miri Ben-Ami, MD, President, Immune Oncology Pharmaceuticals Inc. and Immune Pharmaceuticals Ltd (Israel);
· Mark Levitt, MD, PhD, SVP Oncology Clinical Affairs;
· John Mohr, SVP, Business Development;
· John Militello, VP, Finance and Chief Accounting Officer; and
· Boris Shor, PhD, Executive Director R&D and Scientific Partnerships.

As a result, Immune achieved several notable milestones, including:
· First patient and ongoing enrollment into Phase II clinical trials with bertilimumab in ulcerative colitis;
· Clearance by the U.S. Food and Drug Administration of our Investigational New Drug application for bertilimumab for the treatment of bullous pemphigoid, an auto-immune orphan dermatological disease, allowing for expansion of the clinical trials to the United States;
· Acquisition of worldwide rights to NanoCyclo, a topical nano-formulated cyclosporine for the treatment of moderate atopic dermatitis and psoriasis; and
· In-licensing of a novel bispecific antibody technology and establishment of an R&D laboratory in NYC under the leadership of Dr. Shor, a former Pfizer executive, to focus on the development of bispecific antibodies targeting immune checkpoints and specific tumor targets.

Given the scope of Immune’s development stage portfolio, we have initiated the establishment of a subsidiary with a focus on immuno-oncology therapeutic assets and technologies, allowing the Company to leverage the breadth of its new management team and to access financing opportunities in this vast area of unmet need. The newly established company, Immune Oncology Pharmaceuticals Inc., was created at the end of the first quarter of 2016, under the leadership of Dr. Miri Ben-Ami. Its portfolio includes Ceplene, a cancer immunotherapy for the treatment of Acute Myeloid Leukemia in combination with low dose IL-2; Azixa and crolibulin, Phase II vascular disrupting agents; and bispecific antibodies and NanomAbs (antibody nanoparticle conjugates), two innovative platforms to generate a pipeline of drug candidates. New European Phase IV data on Ceplene was published in two issues of Oncotarget (November 2015 and February 2016) and will be presented at the American Academy of Cancer Research on April 17, 2016. These data and additional analysis from previous trials with Ceplene may support design of an overall survival registrational trial in the U.S. Preclinical data in support of the bispecific antibody platform was published on February 26, 2016 in The Journal of Immunology.

"I am pleased, excited and gratified with the major clinical and organizational accomplishments during the year 2015." said Dr. Daniel Teper, CEO of Immune Pharmaceutical Inc. "We expect 2016 to be an important year for Immune, with several anticipated data milestones for the Company’s product candidates, while we seek to unlock the potential value of our pipeline through financing and strategic partnering opportunities of specific asset groups."

4th Quarter and Full Year 2015 Financial Discussion
Immune reported a loss attributable to common stockholders of $8.2 million, or $0.27 per share, for the quarter ended December 31, 2015, compared to a loss attributable to common stockholders of $7.0 million, or $0.34 per share, for the quarter ended December 31, 2014. For the year ended December 31, 2015, Immune reported a loss attributable to common stockholders of $24.1 million, or $0.90 per share, compared to a loss attributable to common stockholders of $24.4 million, or $1.46 per share, for the year ended December 31, 2014.

R&D expenses increased by $0.9 million during the quarter ended December 31, 2015 to $2.5 million compared with $1.6 million during the quarter ended December 31, 2014. For the year ended December 31, 2015, R&D expenses increased by $0.3 million to $5.9 million compared with $5.6 million during the year ended December 31, 2014. The increase in R&D expenses for the fourth quarter and full year of 2015 was mainly due to an increase in outsourced consulting services related to the Phase II clinical trials of bertilimumab. Additionally, R&D related staff increased, positioning Immune to fully execute on its R&D programs in 2016.

General and administrative expense increased by approximately $1.2 million during the quarter ended December 31, 2015 to $3.6 million, compared with $2.4 million during quarter ended December 31, 2014, due to higher payroll expense as a result of the move of the Company’s headquarters from Israel to New York during fiscal 2015 and the hiring of additional U.S. employees. For the year ended December 31, 2015, general and administrative expense decreased by approximately $0.9 million, or 9%, to $9.8 million, compared with $10.7 million during year ended December 31, 2014. The decrease was primarily due to a reduction in stock compensation expense of $2.6 million due to the vesting of shares issued to consultants in 2014, partially offset by increased payroll expense due to the moving of the Company’s headquarters from Israel to New York in fiscal 2015 and the hiring of additional U.S. based employees.

Non-operating expense decreased by $2.6 million to $0.4 million during quarter ended December 31, 2015 compared with non-operating expense of $3.0 million during quarter ended December 31, 2014. For the year ended December 31, 2015, non-operating expense amounted to $1.4 million compared with non-operating expense of $7.2 million during year ended December 31, 2014, a decrease of $5.7 million. Non-operating expense for the year ended December 31, 2015 consisted of interest expense of $0.8 million primarily relating to cash interest paid and amortization of the debt discount for the Company’s loan and security agreement with Hercules. In addition, the Company recognized a loss on the extinguishment of debt of $0.5 million due to early termination fees in conjunction with the repayment of the MidCap senior secured term loan during 2015. Non-operating expense for the year ended December 31, 2014 consisted of interest expense of $3.4 million primarily due to a $2.2 million charge for the accelerated vesting of restricted stock recorded as debt issuance costs and included $3.1 million in warrant amendment expense in conjunction with the amendment of the March 2014 Warrants.

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Differential role of P-glycoprotein and breast cancer resistance protein in drug distribution into brain, CSF and peripheral nerve tissues in rats.

1. This study was designed to evaluate how the absence of P-glycoprotein (Pgp, Mdr1a), breast cancer-resistance protein (Bcrp, Abcg2) or both affects drug distribution into sciatic nerves, brain and cerebrospinal fluid (CSF) in rats. 2. Pgp substrate (loperamide), BCRP substrates (dantrolene and proprietary compound X) and dual substrates (imatinib and proprietary compound Y) were well distributed into sciatic nerves with comparable nerve to plasma concentration ratios between wild-type and knockout (KO) rats. 3. Brain exposure increased substantially in Mdr1a(-/-) rats for loperamide and in Mdr1a(-/-)/Abcg2(-/-) rats for imatinib and compound Y, but minimally to modestly in Abcg2(-/-) rats for dantrolene and compound X. The deletion of Mdr1a or Abcg2 alone had little effect on brain distribution of compound Y. 4. While CSF to unbound brain concentration ratio remained ≥3 in the KO animals for dantrolene, compounds X and Y, it was reduced to 1 in the Mdr1a(-/-)/Abcg2(-/-) rats for imatinib. 5. The data indicate that Pgp and Bcrp do not play significant roles in drug distribution into peripheral nerve tissues in rats, while working in concert to regulate brain penetration. Our results further support that CSF concentration may not be a good surrogate for unbound brain concentration of efflux substrates.

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Discovery of a 9-mer Cationic Peptide (LTX-315) as a Potential First in Class Oncolytic Peptide.

Oncolytic immunotherapies represent a new promising strategy in the treatment of cancer. In our efforts to develop oncolytic peptides, we identified a series of chemically modified 9-mer cationic peptides that were highly effective against both drug-resistant and drug-sensitive cancer cells and with lower toxicity toward normal cells. Among these peptides, LTX-315 displayed superior anticancer activity and was selected as a lead candidate. This peptide showed relative high plasma protein binding abilities and a human plasma half-life of 160 min, resulting in formation of nontoxic metabolites. In addition, the lead candidate demonstrated relatively low ability to inhibit CYP450 enzymes. Collectively these data indicated that this peptide has potential to be developed as a new anticancer agent for intratumoral administration and is currently being evaluated in a phase I/IIa study.

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Burden of symptoms associated with development of metastatic bone disease in patients with breast cancer.

Women with breast cancer frequently develop painful bone metastases. This retrospective study was designed to longitudinally characterize patterns of patient-reported symptoms among patients with breast cancer relative to the diagnosis of bone metastases.
Patient records were identified from the Oncology Services Comprehensive Electronic Records (OSCER) database which includes outpatient oncology practices across the USA. Symptom burden was assessed by Patient Care Monitor (PCM) assessments, which are administered as part of routine care in a subset of these practices. Eligible patients were women diagnosed with breast cancer (ICD-9-CM 174.xx) who developed bone metastases (ICD-9-CM 198.5) and had ≥1 PCM assessment between January 2007 and December 2012. The pre-specified endpoint was the occurrence of moderate to severe symptom burden, defined as PCM score ≥4 (0-10 scale).
One thousand one hundred five women (median age, 61) met the eligibility criteria. Worsening of symptoms, particularly fatigue and pain, occurred in the months leading up to the diagnosis of bone metastases. After bone metastases diagnosis, the rate of increase in the proportion of patients experiencing moderate/severe symptoms slowed, but continued to climb during follow-up. Median time to moderate/severe symptoms was 0.9 month for fatigue, 1 month for pain, 2.9 months for trouble sleeping, and 7.7 months for numbness/tingling. Half of the patients received bone-targeted agents after diagnosis of bone metastases.
Symptom burden, especially pain and fatigue, increased both before and after the diagnosis of bone metastases, highlighting the need for proactive monitoring and management of symptoms in breast cancer patients.

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