On April 16, 2018 Navidea Biopharmaceuticals (NYSE MKT: NAVB) ("Navidea" or "the Company"), a company focused on the development of precision immunodiagnostic agents and immunotherapeutics, reported it will present at the 2nd Annual NASH Summit in Boston, MA being held April 23-25, 2018 (Press release, Navidea Biopharmaceuticals, APR 16, 2018, View Source [SID1234525353]). Michael Goldberg, President and Chief Executive Officer, will be giving a new presentation focused on Navidea’s NASH research; the presentation will be available on Navidea’s website following the conference.

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Event: 2nd Annual NASH Conference
Presentation Date: Wednesday, April 25th
Presentation Time: 11:30am EST
Location: Revere Hotel Boston Common, Boston, MA
To schedule a meeting with Navidea management at the conference, please contact Navidea Investor Relations at [email protected].

On 16 April 2018 Crescendo Biologics Ltd (Crescendo), the developer of multifunctional biologics, including targeted T-cell engagers, reported that it has achieved the first major technical milestone under the terms of its collaboration with Takeda Pharmaceutical Company Limited (Takeda; TSE: 4502) (Press release, Crescendo Biologics, APR 16, 2018, View Source [SID1234525320]).
The global, strategic, multi-target collaboration and license agreement with Takeda was announced in October 2016. Under this agreement, Crescendo’s proprietary transgenic platform and engineering expertise is being used to identify and optimally configure Humabody-based therapeutics against targets selected by Takeda.

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This milestone, for an undisclosed amount, marks the successful delivery of a highly diverse panel of Humabody leads, directed to the first of Takeda’s selected targets.
Dr Peter Pack, CEO of Crescendo, commented:
"This milestone is an important step forward in our relationship with Takeda. It demonstrates our ability to deliver a diverse selection of characterised Humabody molecules that meet the stringent specifications outlined in the agreement. In conjunction with Takeda’s deep expertise in the field of oncology, this exciting milestone provides further validation of Crescendo’s ability to create optimally configured Humabodies.
"This milestone demonstrates the potential of this innovative technology and brings us closer to our goal of developing next generation, highly modular and targeted biologics against cancer."

On April 16, 2018 Cellectar Biosciences (Nasdaq: CLRB), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of drugs for the treatment of cancer, reported the presentation of CLR 131 preclinical data in a poster discussion entitled "Therapeutic Combination of Radiolabeled CLR1404 with External Beam Radiation in Head and Neck Cancer Murine Xenograft Models" at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting underway in Chicago (Press release, Cellectar Biosciences, APR 16, 2018, View Source [SID1234525338]). The discussion, hosted on Sunday, April 15, 2018 was led by Chunrong Li, assistant scientist, Department of Human Oncology, University of Wisconsin School of Medicine and Public Health.

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The purpose of the study was to evaluate the anti-tumor effect of CLR 131 in combination with external beam radiation (XRT). The results demonstrated uptake of CLR 131 across multiple head and neck cancer (HNC) cell lines and xenograft models, and synergistic anti-tumor effects when CLR 131 was combined with XRT. The combination of CLR 131 and fractionated XRT showed enhanced tumor growth inhibition compared with single modality treatment in the 6 HNC xenograft models. Importantly, the findings suggest potential efficacy using CLR 131 combined with reduced-dose XRT in HNC patients. High-dose XRT while effective for localized disease, produces significant co-morbidities for patients, especially those suffering from diffuse disease. The potential to reduce the XRT dose may also result in decreased toxicity to normal tissue, a common side effect of high-dose XRT.

As a key milestone of their Head and Neck SPORE Grant (NIH P50 DE026787), the University of Wisconsin-Madison is initiating the first human clinical trial combining CLR 131 and external beam radiation in patients with recurrent HNC in the second half of 2018. The costs associated with the Phase 1 study will be covered in their entirety through the grant and the study represents a fourth clinical trial using the company’s lead PDC, CLR 131.

"As we continue both preclinical and clinical evaluation of our lead cancer targeting compound CLR 131, our potential to meaningfully impact a broad range of cancers continues to grow," said James Caruso, chief executive officer of Cellectar Biosciences. "We are encouraged by the data highlighted at AACR (Free AACR Whitepaper) showing enhanced receptivity to treatment and inhibition of tumor growth, while potentially reducing toxicities associated with current standard of care treatment."

About CLR 131
CLR 131 is Cellectar’s investigational radioiodinated PDC therapy that exploits the tumor-targeting properties of the company’s proprietary phospholipid ether (PLE) and PLE analogs to selectively deliver radiation to malignant tumor cells, thus minimizing radiation exposure to normal tissues. CLR 131, is in a Phase 2 clinical study in relapsed or refractory (R/R) MM and a range of B-cell malignancies and a Phase 1 clinical study in patients with (R/R) MM exploring fractionated dosing . In 2018 the company plans to initiate a Phase 1 study with CLR 131 in pediatric solid tumors and lymphoma, and a second Phase 1 study in combination with external beam radiation for head and neck cancer.

On April 16, 2018 Cellectar Biosciences (Nasdaq: CLRB), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of drugs for the treatment of cancer, reported the presentation of a late breaker poster entitled "Phospholipid drug conjugates (PDC) show specificity for a broad range of tumor cells and provides a novel approach for targeted or precision therapy" at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting underway in Chicago (Press release, Cellectar Biosciences, APR 16, 2018, View Source [SID1234525339]). Jarrod Longcor, chief business officer at Cellectar Biosciences will present this poster today, from 8:00 am – 12:00 pm (CT), poster section 43.

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The poster articulates how phospholipid ether platform provides tumor targeting for PDC molecules, irrespective of payload/warhead and their behavior once inside cells. These data provide valuable insight for the successful design of molecules for targeted delivery of cytotoxic payloads. In one of the studies presented, the result shows that Cellectar’s PDCs can effectively deliver cytotoxic payloads to the tumor cells without killing normal cells and that there is a 20-fold difference in the delivery of PDCs to the tumor versus normal cells.

"Many cancer treatments have clinical limitations that could be improved by the targeting our novel phospholipid ether technology and PDCs provide. Our research continues to suggest that our PDCs may offer an attractive method of targeting therapeutics to tumors. Our platform may provide distinct advantages over other technologies, not least of which is the diversity of payloads and linkers we can utilize," said James Caruso, chief executive officer of Cellectar Biosciences. "It is our goal to demonstrate that this level of diversity and specificity can translate into outcomes that will benefit cancer patients."

About Phospholipid Drug Conjugates
Cellectar’s product candidates are built upon a patented delivery and retention platform that utilizes optimized PDCs to target cancer cells. The PDC platform selectively delivers diverse oncologic payloads to cancerous cells and cancer stem cells, including hematologic cancers and solid tumors. This selective delivery allows the payloads’ therapeutic window to be modified, which may maintain or enhance drug potency while reducing the number and severity of adverse events. This platform takes advantage of a metabolic pathway utilized by all tumor cell types in all cell cycle stages. Compared with other targeted delivery platforms, the PDC platform’s mechanism of entry does not rely upon specific cell surface epitopes or antigens. In addition, PDCs can be conjugated to molecules in numerous ways, thereby increasing the types of molecules selectively delivered. Cellectar believes the PDC platform holds potential for the discovery and development of the next generation of cancer-targeting agents.

On April 16, 2018 OncoSec Medical Incorporated (OncoSec) (NASDAQ: ONCS), a company developing intratumoral cancer immunotherapies, today provided highlights from its Research Reception held on Sunday, April 15, 2018, during the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2018.

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The Research Reception was organized to provide industry experts gathered at the AACR (Free AACR Whitepaper) with a comprehensive overview of OncoSec’s ongoing and anticipated clinical programs involving ImmunoPulse IL-12 (or Intratumoral tavo-EP) in metastatic melanoma and triple-negative breast cancer (TNBC), including an overview of a poster presented at AACR (Free AACR Whitepaper) regarding a Phase 1 pilot study of ImmunoPulse IL-12 in TNBC ("Intratumoral plasmid IL-12 and electroporation in pre-treated inoperable locally advanced or recurrent triple-negative breast cancer (TNBC)" – Poster 055 / Abstract CT022).

ImmunoPulse IL-12 is currently being used in several ongoing clinical trials, with the technology demonstrating evidence of anti-tumor activity in the treatment of various solid tumors, the potential to initiate a systemic immune response, and a favorable safety profile. ImmunoPulse IL-12 combines intratumoral plasmid IL-12 with electroporation to produce a controlled, localized expression of IL-12 in the tumor microenvironment, which in turn, enables the immune system to target and attack tumors throughout the body.
The full webcast and presentation slides from the Research Reception can be accessed via OncoSec’s website: View Source

The following is a recap of key highlights from the event:
Melanoma Data Update: OMS-I100 Monotherapy Study & OMS-I102 Pembrolizumab Combination Study
Led by Alain Algazi, MD of the UCSF Helen Diller Family Comprehensive Cancer Center, the first presentation provided data from the OMS-I100 Phase 2 clinical trial, which demonstrated that ImmunoPulse IL-12 delivered as a monotherapy promoted innate and adaptive immune responses, importantly driving increased CD8+ TIL frequency.
Updated clinical data from the OMS-I100 study demonstrated that, in addition to peripheral immune responses, regression of distal, non-treated lesions were observed on average in 45% of the patients
Also, the treatment-related reshaping of the tumor microenvironment points to amplification of the IFN-γ/IL-12 feedforward loop, which in addition to supporting anti-tumor immunity, triggers adaptive immune resistance (PD-L1 expression) and provides the basis for a combination with IL-12 and anti-PD-1 therapy
Updated data from the OMS-I102 Phase 2 clinical trial (ImmunoPulse IL-12 in combination with pembrolizumab) demonstrated a 57% progression free survival (PFS) rate at 21 months with 100% (11/11) duration of response and median PFS/OS not yet reached

OMS-I140 Protocol; Review of Intratumoral IL-12 Data in TNBC Presented at AACR (Free AACR Whitepaper)
Led by Melinda Telli, MD of the Stanford University Medical Center, the following presentation provided a review of the OMS-I140 Phase 1 pilot study of ImmunoPulse IL-12 in TNBC, including an analysis of initial findings from the study, which were presented as a poster during AACR (Free AACR Whitepaper). The Phase 1 pilot study was designed to determine whether intratumoral plasmid IL-12 with electroporation (ImmunoPulse IL-12) would elicit a pro-inflammatory molecular and histological signature in treated as well untreated sites. Following administration of ImmunoPulse IL-12 on Days 1, 5 and 8 of a single 28-day cycle, data was obtained from five patients of the 10-patient study.
Treatment-related increase in CD8+ TIL density was observed by intratumoral chromogenic staining in 2 of 5 patient tumors (1 treated /1 untreated tumor)
NanoString analysis suggests that 1 cycle of Intratumoral tavo-EP did not globally impact intratumoral immune-related gene expression
Evidence of a treatment-related productive systemic immune response was seen in reduced gMDSCs and increased SLECs in the peripheral blood
Reported treatment-related adverse events included transient pain associated with electroporation and fatigue (both grade 1)

These results suggest that Intratumoral tavo-EP is a safe and tolerable TIL-stimulating therapy of skin and subcutaneous TNBC tumors

Further study of this therapy in combination with anti-PD-1 antibody therapy is warranted
OMS-I141 Protocol; Upcoming Anti-PD-1 Combination Clinical Trial in TNBC
A presentation given by Pamela Munster, MD of the UCSF Helen Diller Family Comprehensive Cancer Center, provided a review of OncoSec’s proposed Phase 2 trial in TNBC involving a combination of ImmunoPulse IL-12 (intratumoral tavo-EP) and an anti-PD-1 antibody therapy. The future Phase 2 trial will be a Simon 2-stage minimax design, non-comparative, open-label, single-arm, multicenter study of ImmunoPulse IL-12 plus an anti-PD-1 antibody therapy.
The study is expected to enroll approximately 25 patients (15 in Stage 1, and, if appropriate, 10 in Stage 2) with TNBC and electroporation accessible cutaneous / subcutaneous tumors

The proposed primary endpoint is to assess efficacy as measured by objective response rate (ORR) by independent central review (ICR) based on Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 of intratumoral tavo-EP in combination with an anti-PD-1 antibody therapy in subjects with inoperable locally advanced or metastatic TNBC
OncoSec expects to initiate this proposed study in 2018

PISCES/KEYNOTE-695 Operational Update
Led by OncoSec’s Chief Clinical and Regulatory Officer, Sharron Gargosky, PhD, the final presentation offered an operational assessment of PISCES/KEYNOTE-695, a global, multicenter Phase 2b, open-label trial of ImmunoPulse IL-12 in combination with pembrolizumab in patients with stage III/IV melanoma who have progressed or are progressing on either pembrolizumab or nivolumab treatment. OncoSec expects to report preliminary data at an upcoming medical meeting in 2018.