On October 16, 2018 Five Prime Therapeutics, Inc. (Nasdaq: FPRX), a biotechnology company discovering and developing innovative immuno-oncology protein therapeutics, reported that it initiated patient dosing in the dose exploration cohort of its ongoing Phase 1 clinical trial of FPA150 (FPA150-001; NCT03514121), a targeted, first-in-class immuno-oncology antibody that targets B7-H4 (Press release, Five Prime Therapeutics, OCT 16, 2018, View Source [SID1234529927]).

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"We’re excited to be ahead of schedule in opening up our dose exploration basket cohort for FPA150, our first-in-class B7-H4 antibody, in patients whose tumors overexpress B7-H4," said Helen Collins, M.D., Senior Vice President and Chief Medical Officer of Five Prime. "B7-H4 is generating excitement in investigators because it’s expressed in tumor types that are currently not well served by immunotherapy, including breast and gynecologic cancers. We’re hopeful that a targeted therapy like FPA150 will provide clinical benefit in these patients who have limited treatment options."

B7-H4 is in the same family of checkpoint molecules as PD-L1 and, like PD-L1, appears to inhibit T-cells in preclinical models. FPA150 has a dual mechanism of action: it blocks a T cell checkpoint pathway and delivers antibody-dependent cell-mediated cytotoxicity (ADCC) against B7-H4-expressing tumor cells.

FPA150-001 is an ongoing Phase 1a/1b dose escalation and expansion clinical trial of FPA150 monotherapy in patients with advanced solid tumors. The exploratory basket cohort is a part of that trial and will include up to 10 patients whose tumors overexpress B7-H4, as assessed by an immunohistochemistry (IHC) assay. The objective of this cohort is to evaluate a range of FPA150 doses to gain additional data on safety, pharmacokinetics (PK) and potential preliminary clinical activity. All patients will undergo pre- and on-treatment biopsies to assess the pharmacodynamic effects of FPA150 on the tumor and the tumor microenvironment.

The Phase 1a dose-escalation portion of FPA150-001 in unselected patients with any solid tumor is currently ongoing. The primary objective of this portion of the trial is to identify a maximum tolerated dose (MTD) or recommended dose (RD) for FPA150 monotherapy.

Once the MTD/RTD has been identified, the company will initiate a Phase 1b dose-expansion portion of the trial in B7-H4 positive tumors, including in breast cancer, ovarian cancer and endometrial cancer. The Phase 1b dose expansion endpoints include objective response rate, as well as safety and PK.

About FPA150

FPA150 is a novel, fully human, afucosylated monoclonal antibody targeting B7-H4. B7-H4 expression is observed in multiple solid tumors, including breast and gynecologic cancers. FPA150 is designed with a dual mechanism of action: blocking the T cell checkpoint activity of B7-H4 as well as delivering ADCC against tumor cells expressing B7-H4.

The European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) (ESMO 2018) congress takes place in Munich, Germany between 19 Oct – 23 Oct 2018.

This conference features more than 2000 abstracts and a global presence of companies ranging from big pharma to startups like Arcus Biosciences (USA), CStone Pharmaceuticals (China), Neon Therapeutics (USA), NEOMED Therapeutics 1 (Canada) and Oblique Therapeutics (Sweden).

Read more below on the latest and hottest from companies like Arcus, AstraZeneca, Merck & Co or any of the other 40+ selection of companies generating heat about their presence at ESMO (Free ESMO Whitepaper) 2018.

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On October 15, 2018 Roche (SIX: RO, ROG; OTCQX: RHHBY) reported the phase III KATHERINE study met its primary endpoint, showing Kadcyla (trastuzumab emtansine) as a single agent significantly reduced the risk of disease recurrence or death (invasive disease-free survival, iDFS) compared to Herceptin (trastuzumab) as an adjuvant (after surgery) treatment in people with HER2-positive early breast cancer (eBC) who have residual disease (pathological invasive residual disease in the breast and/or axillary nodes) present following neoadjuvant (before surgery) treatment (Press release, Hoffmann-La Roche, OCT 15, 2018, View Source [SID1234529895]). The safety profile of Kadcyla in the KATHERINE study was consistent with previous clinical trials and no new safety signals were identified. [1,2]

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"We are highly encouraged by these positive results with adjuvant Kadcyla treatment in people with HER2-positive early breast cancer who have residual disease after neoadjuvant therapy," said Sandra Horning, MD, Roche’s Chief Medical Officer and Head of Global Product Development. "We look forward to discussions with regulatory authorities with the goal of bringing this new treatment option to patients as soon as possible."

Full results will be submitted to health authorities around the world, and will be presented at the 2018 San Antonio Breast Cancer Symposium on Wednesday 5 December at 11.00 am CST.

The KATHERINE trial investigated a population of people with HER2-positive eBC who did not achieve a pathological complete response to neoadjuvant treatment. This state of residual disease is associated with a worse prognosis.[3,4]

The goal in treating early breast cancer is to provide people with the best chance for a cure. [5] While we come closer to this goal with each advance, many people still have a disease recurrence in the long-term. [6] Neoadjuvant treatment is given before surgery with the goal of shrinking tumours and helping to improve surgical outcomes. [7,8,9] Adjuvant treatment is given after surgery as part of a complete eBC treatment regimen and is aimed at eliminating any remaining cancer cells in the body, to help reduce the risk of the cancer returning. [7]

About the KATHERINE study[10]
KATHERINE is an international, multi-centre, two-arm, randomised, open-label, phase III study evaluating the efficacy and safety of Kadcyla versus Herceptin as an adjuvant therapy in people with HER2-positive eBC who have pathological residual disease in the breast and/or axillary lymph nodes following neoadjuvant therapy that included Herceptin and taxane-based chemotherapy. The primary endpoint of the study is iDFS, which, in this study, is defined as the time from randomisation to invasive breast cancer recurrence or death from any cause. Secondary endpoints include disease-free survival and overall survival.

About Kadcyla
Kadcyla is an antibody-drug conjugate (ADC) engineered to deliver potent chemotherapy directly to HER2-positive cancer cells, potentially limiting damage to healthy tissues. [1,2] It combines two anti-cancer properties joined together by a stable linker: the HER2-targeting properties of trastuzumab (the active ingredient in Herceptin) and the chemotherapy agent DM1. [11] Kadcyla is the only ADC approved as a single agent in 104 countries including the US and EU for the treatment of people with HER2-positive metastatic breast cancer who have previously received Herceptin and taxane chemotherapy, separately or in combination. Roche licenses technology for Kadcyla under an agreement with ImmunoGen, Inc.

About Roche’s medicines for HER2-positive breast cancer
Roche has been leading research into the HER2 pathway for over 30 years and is committed to improving the health, quality of life and survival of people with both early and advanced HER2-positive disease. HER2-positive breast cancer is a particularly aggressive form of the disease that affects approximately 15-20% of patients. [12] Roche has developed three innovative medicines that have helped transform the treatment of HER2-positive breast cancer: Herceptin (trastuzumab), Perjeta (pertuzumab) and Kadcyla (trastuzumab emtansine). Eligibility for treatment with Roche’s HER2-targeted medicines is determined via a diagnostic test, which identifies people who will likely benefit from these medicines at the onset of their disease.

On October 15, 2018 Ligand Pharmaceuticals Incorporated (NASDAQ: LGND) reported its third quarter 2018 financial results on November 8, 2018 (Press release, Ligand, OCT 15, 2018, View Source [SID1234529913]). Ligand’s CEO John Higgins, President and COO Matt Foehr and Executive Vice President and CFO Matt Korenberg will host the conference call.

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Third Quarter 2018 Earnings Call

What: Ligand conference call to discuss financial results and provide general business updates

When: Thursday, November 8, 2018

Time: 9:00 a.m. Eastern time (6:00 a.m. Pacific time)

Conference Call: (833) 591-4752 within the U.S.
(720) 405-1612 outside the U.S.
Conference ID – 5777841

Webcast:
Live conference call webcast and replay accessible at www.ligand.com

On October 15, 2018 Mirati Therapeutics, Inc. (NASDAQ: MRTX), a clinical-stage targeted oncology company, reported that in conjunction with the two Proffered Papers Sessions (oral presentations) highlighting data from ongoing clinical trials of sitravatinib, the Company will conduct an investor conference call during the 2018 Annual Meeting of the European Society for Medical Oncology in Munich, Germany, on October 22nd at 2:00 p.m. CEST/8:00 a.m. EDT/5:00 a.m. PDT (Press release, Mirati, OCT 15, 2018, View Source [SID1234529931]).

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The Proffered Papers (Oral Presentations) Details:

Title: Sitravatinib demonstrates activity in patients with novel genetic alterations that inactivate CBL
Presentation Topic: Proffered paper session – Developmental therapeutics (ID 170)
Location: Hall B3 – Room 22, ICM München, Munich, Germany
Lecture Date and Time: October 21, 2018, at 11:00 a.m. – 11:12 a.m. CEST
Presentation Number: 408O
Presenter: Lyudmila Bazhenova, M.D.

The data being presented in this oral presentation will feature data from the ongoing Phase 1b trial of sitravatinib monotherapy in patients with certain genetic alterations.

Title: Stage 2 enrollment complete: Sitravatinib in Combination with Nivolumab in NSCLC Patients Progressing on Prior Checkpoint Inhibitor Therapy
Presentation Topic: Proffered paper session – Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) (ID 159)
Location: Hall A2 – Room 18, ICM München, Munich, Germany
Lecture Date and Time: October 22, 2018, at 12:06 p.m. – 12:18 p.m. CEST
Presentation Number: 1129O
Presenter: Ticiana A. Leal, M.D.

The data being presented in this oral presentation comprise updated clinical data from the ongoing Phase 2 trial of sitravatinib in combination with OPDIVO (nivolumab) for the treatment of non-small cell lung cancer (NSCLC) patients who have progressed on prior immune checkpoint inhibitor therapy.

Investor Call and Webcast Information
In conjunction with the oral presentations, Mirati will host a live conference call and webcast, led by Dr. Charles Baum, on Monday, October 22, 2018, at 2:00 p.m. CEST/8:00 a.m. EDT/5:00 a.m. PDT. The live call can be accessed by dialing (866) 324-3683 (toll free) or (509) 844-0959 (international) and then using passcode 3890724. A telephone replay will be made available by dialing (855) 859-2056 (toll free) or (404) 537-3406 (international) using conference replay ID 3890724.

The call will also be webcast live through the "Investors" section of the Mirati corporate website at View Source A replay of the webcast will be available on the Mirati website shortly after the conclusion of the event.

About Sitravatinib

Sitravatinib is a spectrum-selective kinase inhibitor that potently inhibits receptor tyrosine kinases (RTKs), including TAM family receptors (TYRO3, Axl, Mer), split family receptors (VEGFR2, KIT) and RET. As an immuno-oncology agent, sitravatinib is being evaluated in combination with nivolumab (OPDIVO), an anti-PD-1 checkpoint inhibitor, in patients who have experienced documented disease progression following treatment with a checkpoint inhibitor. Sitravatinib’s potent inhibition of TAM and split family RTKs may overcome resistance to checkpoint inhibitor therapy through targeted reversal of an immunosuppressive tumor microenvironment, enhancing antigen-specific T cell response and expanding dendritic cell-dependent antigen presentation.

Sitravatinib is also being evaluated as a single agent in a Phase 1b expansion clinical trial enrolling patients whose tumors harbor specific mutations in the CBL kinase. When CBL is inactivated by mutation, multiple RTKs, including TAM, VEGFR2 and KIT, are dysregulated and may act as oncogenic tumor drivers in NSCLC and melanoma. Sitravatinib potently inhibits these RTKs and is being investigated as a treatment option for cancer patients with CBL mutations