Merck Announces FDA Acceptance for Review of MK-3475 Biologics License Application for Advanced Melanoma

On May 6, 2014 Merck & Co reported that the U.S. Food and Drug Administration (FDA) has accepted for review the Biologics License Application (BLA) for MK-3475, Merck’s investigational anti-PD-1 antibody, for the treatment of unresectable or metastatic melanoma in patients who have been previously treated with ipilimumab (Press release Merck & Co, MAY 6, 2014, View Source [SID:1234500607]). The FDA granted Priority Review designation with a PDUFA date of October 28, 2014, and the MK-3475 BLA will be reviewed under the FDA’s Accelerated Approval program. The FDA previously granted MK-3475 Breakthrough Therapy designation for advanced melanoma, the most dangerous type of skin cancer. If approved by the FDA, MK-3475 has the potential to be the first anti-PD-1 antibody in a new class of immune checkpoint modulators.

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Merck also announced it plans to file a Marketing Authorization Application for MK-3475 in Europe for advanced melanoma by the end of 2014.

"Patients with advanced melanoma have few therapeutic options and often fail to respond to all available treatments," said Dr. Roger M. Perlmutter, president, Merck Research Laboratories. "We are hopeful that the FDA, through their priority review of our application, will agree to make MK-3475 available to patients with advanced melanoma who have no other therapeutic options."

Astellas and Medivation Receive Priority Review From FDA for XTANDI(R) (Enzalutamide) Capsules in Chemotherapy-Naive Advanced Prostate Cancer

On May 6, 2014 Medivation and Astellas Pharma reported that the U.S. Food and Drug Administration (FDA) has accepted for filing the supplemental New Drug Application (sNDA) to extend the indication for XTANDI (enzalutamide) capsules for the treatment of men with metastatic castration-resistant prostate cancer (mCRPC) who have not received chemotherapy. (Press release Medivation, MAY 6, 2014, View Source [SID:1234500736]). This sNDA application was granted Priority Review designation with a stated FDA Prescription Drug User Fee Act (PDUFA) review date of September 18, 2014. XTANDI is currently approved for the treatment of patients with mCRPC who have previously received docetaxel chemotherapy.

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The sNDA application is based on the results from the Phase 3 PREVAIL trial evaluating XTANDI as compared to placebo in more than 1,700 chemotherapy-naïve mCRPC patients. A variation application to amend the European Marketing Authorization Application was submitted to the European Medicines Agency on April 2, 2014.

The FDA’s acceptance of the sNDA triggers a milestone payment to Medivation under its collaboration agreement with Astellas.

10-Q – Quarterly report [Sections 13 or 15(d)]

Affymax has filed a 10-Q – Quarterly report [Sections 13 or 15(d)] with the U.S. Securities and Exchange Commission .

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CytRx Reports Completed Phase 1b/2 Progression-Free Survival and Overall Survival Aldoxorubicin Data in Second-Line Soft Tissue Sarcoma

On May 5, 2014 CytRx reported updated progression-free survival (PFS) and overall survival (OS) results from its completed Phase 1b/2 clinical trial (NCT01514188) of aldoxorubicin in patients with advanced soft tissue sarcoma (STS) (Press release CytRx, MAY 5, 2014, View Source;p=RssLanding&cat=news&id=1925718 [SID:1234500486]).
Data from the Phase 1b/2 trial demonstrated that aldoxorubicin administered at its maximum tolerated dose (350mg/m2) showed a substantial increase in median PFS in patients with advanced soft tissue sarcoma (n=13). Partial responses were observed in 5 of 13 patients (38%) and stable disease was observed in 6 of 13 patients (46%). Median PFS of 6.4 months was initially reported at ASCO (Free ASCO Whitepaper) and ESMO (Free ESMO Whitepaper); in the final reported data, observed median PFS had nearly doubled to 11 months, and median OS was 17 months. Notably, following 8 cycles of aldoxorubicin, two patients experienced no progression of disease for 23 and 15 months, respectively, despite no further treatment. Aldoxorubicin was generally well tolerated with no observed cardiotoxicities and no drug-related deaths.

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Aldoxorubicin is currently being studied in a pivotal global Phase 3 clinical trial evaluating the efficacy and safety of aldoxorubicin as a second-line treatment for patients with STS under a Special Protocol Assessment with the FDA. CytRx is also conducting two Phase 2 clinical trials evaluating aldoxorubicin in patients with late-stage glioblastoma (GBM) and HIV-related Kaposi’s sarcoma.

10-Q – Quarterly report [Sections 13 or 15(d)]

AMAG Pharmaceuticals has filed a 10-Q – Quarterly report [Sections 13 or 15(d)] with the U.S. Securities and Exchange Commission (Filing 10-Q , AMAG Pharmaceuticals, MAY 5, 2014, View Source [SID1234500484]).

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