On June 15, 2018 MorphoSys AG (FSE: MOR; Prime Standard Segment, TecDAX; Nasdaq: MOR) reported its updated data from the ongoing phase 1/2a study of the anti-CD38 antibody MOR202 in relapsed/refractory multiple myeloma at the European Hematology Association (EHA) (Free EHA Whitepaper) Annual Meeting 2018 in Stockholm (Press release, MorphoSys, JUN 15, 2018, View Source [SID1234527339]). The dose escalation trial comprises three arms: MOR202, MOR202 in combination with the immunomodulatory drug (IMiD) lenalidomide (LEN), and MOR202 in combination with the IMiD pomalidomide (POM), in each case with low-dose dexamethasone (DEX).

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"We are optimistic about the responses seen in patients with multiple myeloma treated with MOR202 plus LEN/DEX and POM/DEX based on matured data as well as about the low proportion of patients experiencing infusion-related reactions," commented Dr. Malte Peters, Chief Development Officer of MorphoSys AG. "There is a medical need for new treatment options in multiple myeloma and we look forward to further maturing data from this ongoing trial."

In total, 56 patients were evaluable for safety and efficacy analysis in the clinically relevant dose cohorts of MOR202 (4 mg/kg, 8 mg/kg, 16 mg/kg) by the time of the data cut-off at December 31, 2017. At data cut-off, 16 patients remained in the study. Of the 56 evaluable patients, 18 had received MOR202 plus DEX, 21 received the combination of MOR202 and POM/DEX and 17 received MOR202 plus LEN/DEX.

MOR202 was given as a two-hour infusion up to the highest dose of 16 mg/kg. Infusion-related reactions (IRRs) occurred in 11% of patients in the clinically relevant dose cohorts of MOR202 and were limited to grade 1 or 2. Further, infusion time could be shortened to 30 minutes in the majority of the 16 patients remaining on study as per the data cut-off date.

The most frequent adverse events of grade 3 or higher were neutropenia, lymphopenia, and leukopenia in 52%, 48%, and 39% of patients, respectively. No unexpected safety signals were observed.

Patients treated with MOR202 in combination with LEN/DEX had a median of two prior treatment lines, 59% being refractory to at least one prior therapy. Median progression-free survival (PFS) was not yet reached. With six of the 17 patients in this cohort still on study at data cut-off, the median follow-up was 16.6 months. An objective response was observed in eleven out of 17 patients (65%), with two complete responses (CR), three very good partial responses (VGPR) and seven partial responses (PR).

Patients receiving MOR202 with POM/DEX, had a median of three prior treatment lines, all being refractory to the last prior therapy. Median PFS was 17.5 months. With ten out of 21 patients in this cohort still on study at data cut-off, the median follow-up was 6.5 months. An objective response was observed in ten out of 21 patients (48%), with two patients achieving a complete response (CR), four patients with a very good partial response (VGPR) and four partial responses (PR).

Patients treated with MOR202 plus DEX had a median of three prior treatment regimens, with 67% being refractory to any prior therapy. Median PFS in this cohort was 8.4 months. All patients had discontinued the study before data cut-off, i.e., follow-up for this cohort is completed. An objective response was observed in five out of 18 patients (28%).

Details of the MOR202 presentation at EHA (Free EHA Whitepaper) 2018

Abstract Code: S848

MOR202 with low-dose dexamethasone (DEX) or pomalidomide/DEX or lenalidomide/DEX in relapsed or refractory multiple myeloma (r/r MM): A phase I/IIa, multicenter, dose-escalation study

The oral presentation will be given during the session "New therapeutic strategies to improve the outcome of relapse/refractory plasma cell disorders" on Saturday, June 16, 2018, from 4:15-4:30pm CEST (10:15-10:30am EDT), in Room A1 at the Stockholmsmässan in Stockholm.

Additional information can be found at www.ehaweb.org, including the abstracts.

On June 14, 2018 Aptose Biosciences Inc. (NASDAQ:APTO) (TSX:APS) reported that they have entered into a license agreement with CrystalGenomics, Inc. (KOSDAQ:083790) for China rights to CG-806 (including People’s Republic of China, Hong Kong and Macau) (Press release, Aptose Biosciences, JUN 14, 2018, View Source;p=RssLanding&cat=news&id=2354544 [SID1234527312]). Aptose will now own worldwide rights (excluding Korea) to develop and commercialize CG-806, a first-in-class, highly potent oral small molecule being developed for acute myeloid leukemia (AML), B-cell malignancies and other hematologic malignancies.

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Under the agreement, CrystalGenomics will receive an upfront payment of US $3 million and is eligible for development, regulatory and commercial-based milestones, as well as single-digit royalties on product sales in China. Total deal value for the China territory, including the upfront payment, is up to US $125 million.

On May 7, 2018, Aptose exercised its option to obtain the exclusive license from CrystalGenomics to develop and commercialize CG-806 worldwide outside of China and Korea. This new agreement extends that license agreement to include China.

"Licensing rights to CG-806 to include the China territory was a strategic decision," said William G. Rice, Ph.D., Chairman, President and Chief Executive Officer of Aptose. "Our preclinical work with CG-806 has demonstrated its superior activity to other FLT3 inhibitors on AML patient samples, its superior ability to kill B-cell malignancy patient samples relative to ibrutinib, and a favorable safety profile. We believe that CG-806 has the potential to serve as a transformational agent for multiple hematologic cancers, including AML, CLL and others."

"We are pleased to continue our relationship with the Aptose team, which recognized the exciting potential of CG-806 very early in its development," said Joong Myung Cho, Ph.D., Chairman and Chief Executive Officer of CrystalGenomics. "They have been laser focused on IND-enabling studies of CG-806, and we look forward to seeing CG-806 enter the clinic."

About CG-806

CG-806 is an oral, first-in-class pan-FLT3/pan-BTK multi-kinase inhibitor that represents a potential best-in-class therapeutic for patients with AML.

Aptose has been conducting Investigational New Drug (IND) enabling studies with CG-806, as well as numerous preclinical studies. When tested against fresh bone marrow samples from patients with AML, CG-806 demonstrated superior potency and range of activity relative to all other FLT3 inhibitors evaluated. Likewise, CG-806 demonstrated superiority over ibrutinib when tested against samples from CLL patients. The superior potency and breadth of activity against patient-derived hematologic malignancy cells is due to the ability of CG-806 to target wild type (WT) and all known mutant forms of FLT3 and BTK, and to suppress multiple signaling pathways that can rescue hematologic cancers from other agents. Once-daily oral dosing of CG-806 in murine xenograft models of human hematologic malignancies demonstrated tumor eradication in the absence of observable toxicity, and dose range finding studies have shown CG-806 to have a robust safety profile. Aptose expects to submit an IND in late 2018 and initiate clinical trials immediately thereafter.

On June 14, 2018 CTI BioPharma Corp. (CTI BioPharma) (NASDAQ: CTIC) reported that management will present at the JMP Securities 2018 Life Sciences Conference in New York, NY on Thursday, June 21, 2018 at 1:00 PM ET (Press release, CTI BioPharma, JUN 14, 2018, View Source;p=RssLanding&cat=news&id=2354543 [SID1234527313]).

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The presentation will be webcast live and available for replay from the Investors section of CTI BioPharma’s website at www.ctibiopharma.com.

On June 14, 2018 Stemline Therapeutics, Inc. (Nasdaq:STML), a clinical-stage biopharmaceutical company developing novel oncology therapeutics, reported that ELZONRISTM (tagraxofusp; SL-401) will be the subject of three clinical presentations, including an oral presentation on the pivotal BPDCN program (Press release, Stemline Therapeutics, JUN 14, 2018, View Source [SID1234527314]). Updated data from the ongoing Phase 2 trial in chronic myelomonocytic leukemia (CMML) and myelofibrosis (MF) will also be presented. Presentations will be delivered tomorrow, Friday, June 15th at the 23rdCongress of the European Hematology Association (EHA) (Free EHA Whitepaper) in Stockholm, Sweden.

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Details on the presentations are listed below. Presentations will be available on the Stemline website (www.stemline.com), Scientific Presentations tab, after their delivery.

Results of Pivotal Phase 2 Trial of SL-401 in Patients with Blastic Plasmacytoid Dendritic Cell Neoplasm

Abstract: S116
Session: Miscellaneous Treatments in AML
Presenter: Naveen Pemmaraju, MD; MD Anderson Cancer Center
Oral Presentation: Friday, June 15; 11:45 – 12:00 CEST (5:45 AM – 6:00 AM ET)
Location: Room A4
Results from Ongoing Phase 1/2 Trial of SL-401 in Patients with Intermediate or High Risk Relapsed/Refractory Myelofibrosis

Abstract: PF618
Session: Myeloproliferative neoplasms – Clinical
Poster Presentation: Friday, June 15; 17:30 – 19:00 CEST (11:30 AM – 1 PM ET)
Location: Poster Area
Results from Ongoing Phase 1/2 Trial of SL-401 in Patients with Relapsed/Refractory CMML

Abstract: PF626
Session: Myeloproliferative neoplasms – Clinical
Poster Presentation: Friday, June 15; 17:30 – 19:00 CEST (11:30 AM – 1 PM ET)
Location: Poster Area
About ELZONRISTM (tagraxofusp; SL-401)
ELZONRISTM (tagraxofusp; SL-401) is a novel targeted therapy directed to CD123, a cell surface receptor expressed on a range of malignancies. ELZONRIS has successfully completed a pivotal trial in blastic plasmacytoid dendritic cell neoplasm (BPDCN), an indication for which it was granted Breakthrough Therapy Designation (BTD). A rolling Biologics License Application (BLA) submission is underway. ELZONRIS is also being evaluated in additional clinical trials in other indications including chronic myelomonocytic leukemia (CMML), myelofibrosis (MF), and acute myeloid leukemia (AML).

On June 14, 2018 PharmaCyte Biotech, Inc. (OTCQB: PMCB), a clinical stage biotechnology company focused on developing targeted cellular therapies for cancer and diabetes using its signature live-cell encapsulation technology, Cell-in-a-Box, reported that it has successfully completed the comprehensive characterization of its proprietary cell clone known as 22P1G (Press release, PharmaCyte Biotech, JUN 14, 2018, View Source [SID1234527315]).

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The 22P1G cells constitute the cells in the Master Cell Bank (MCB) that were prepared and tested by PharmaCyte’s contractor, Eurofins Lancaster Laboratories. The cells from the MCB will serve as the active pharmaceutical ingredient (API) in the company’s Cell-in-a Box capsules that will be used (together with low doses of the cancer prodrug ifosfamide) for the treatment of locally advanced, non-metastatic, inoperable pancreatic cancer (LAPC) in its planned clinical trial.

The comprehensive characterization studies include long-term stability of the cells, and stability of the potency of the cells as a therapeutic. All studies performed are required by the U.S. Food and Drug Administration (FDA).

PharmaCyte’s Chief Executive Officer, Kenneth L. Waggoner, elaborated on the significance of the studies saying, "PharmaCyte is complying with all of the FDA guidelines and recommendations for all cell tests and other recent studies with the 22P1G cells. Successful completion of these studies was a pre-requisite for the approval by the FDA for us to conduct a clinical trial in patients with LAPC. Our treatment is primarily dependent upon genetically engineered live-human cells that produce a particularly potent cytochrome P450 enzyme that can activate the chemotherapy prodrug ifosfamide (clone 22P1G cells).

"With each individual batch, these cells must be stable for the long term, and the properties of the 22P1G cells must remain consistent from batch to batch. The newly completed studies provide evidence that both requirements have been met. Our pancreatic cancer treatment utilizes 22P1G cells that have been encapsulated using the Cell-in-a-Box technology. For treatment of LAPC patients, the capsules containing the cells are implanted near the pancreatic tumor so that a high local concentration of the cancer-killing ifosfamide metabolite is produced near the tumor."