On November 10, 2016 Seattle Genetics, Inc. (Nasdaq: SGEN), a global biotechnology company, reported that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation to ADCETRIS (brentuximab vedotin) for the treatment of patients with CD30-expressing mycosis fungoides (MF) and primary cutaneous anaplastic large cell lymphoma (pcALCL) who require systemic therapy and have received one prior systemic therapy (Press release, Seattle Genetics, NOV 10, 2016, View Source [SID1234516472]). MF and pcALCL are the most common subtypes of cutaneous T-cell lymphoma (CTCL), accounting for more than 75 percent of the disease. ADCETRIS has been evaluated in CD30-expressing CTCL in investigator- and corporate-sponsored clinical trials, including the phase 3 ALCANZA study. The positive topline results of the ALCANZA trial were announced in August 2016 and an abstract was accepted for oral presentation at the upcoming American Society of Hematology (ASH) (Free ASH Whitepaper) annual meeting, December 3-6, 2016 in San Diego, California. ADCETRIS is an antibody-drug conjugate (ADC) directed to CD30 which is expressed on skin lesions in approximately 50 percent of patients with CTCL. ADCETRIS is currently not approved for the treatment of CTCL.

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The FDA’s Breakthrough Therapy Designation is intended to expedite the development and review of promising drug candidates for serious or life-threatening conditions. It is based upon clinical evidence of substantial improvement over existing therapies on one or more clinically significant endpoints.

"The decision by the FDA to grant ADCETRIS Breakthrough Therapy Designation further reinforces our belief that ADCETRIS represents a meaningful advance in the treatment of CD30-expressing CTCL," said Clay Siegall, Ph.D., President and Chief Executive Officer of Seattle Genetics. "The Breakthrough Therapy Designation supports our goal to expedite the review and approval process to make ADCETRIS available to patients in this setting who may benefit. We look forward to presenting the data from our phase 3 ALCANZA trial in an oral session at the upcoming ASH (Free ASH Whitepaper) annual meeting and intend to submit a supplemental Biologics License Application to the FDA in the first half of 2017 for approval in this setting."

This Breakthrough Therapy Designation was based on data from the phase 3 ALCANZA clinical trial. The phase 3 ALCANZA trial evaluated ADCETRIS in CD30-expressing CTCL and met its primary endpoint, demonstrating a highly statistically significant improvement in the rate of objective response lasting at least four months (ORR4). This randomized trial, which received a Special Protocol Assessment (SPA) agreement from the FDA and scientific advice from the European Medicines Agency (EMA), compared the use of single-agent ADCETRIS to a control arm of investigator’s choice of standard therapies, methotrexate or bexarotene, in 131 patients with CD30-expressing CTCL who received prior systemic or radiation therapy.

The title of the phase 3 ALCANZA abstract accepted for oral presentation at the ASH (Free ASH Whitepaper) Annual Meeting is below and can be found at www.hematology.org:

Brentuximab Vedotin Demonstrates Significantly Superior Clinical Outcomes in Patients with CD30-Expressing Cutaneous T Cell Lymphoma Versus Physician’s Choice (Methotrexate or Bexarotene): the Phase 3 ALCANZA Study (Abstract #182, oral presentation on Saturday, December 3, 2016 at 2:15 p.m. PT)
Phase 3 ALCANZA Clinical Trial Design

The ALCANZA trial is a randomized, open-label phase 3 study designed to evaluate single-agent ADCETRIS versus a control arm of investigator’s choice of standard therapies, methotrexate or bexarotene, in patients with CD30-expressing CTCL, including those with pcALCL or MF. The primary endpoint is ORR4 as assessed by Global Response Score in the ADCETRIS arm compared to the control arm. Key secondary endpoints are complete response rate, progression-free survival and reduction in the burden of symptoms during treatment. The clinical trial enrolled 131 patients at 50 sites globally. Patients with pcALCL must have received at least one prior systemic or radiation therapy and patients with MF must have received at least one prior systemic therapy. Patients received ADCETRIS every three weeks versus investigator’s choice for up to approximately one year. This international multi-center trial has been conducted in North and South America, Europe and Australia under operational responsibility of Takeda Pharmaceuticals.

ADCETRIS received orphan drug designation from the FDA for the treatment of MF, which is the most common type of CTCL. ADCETRIS also received orphan drug designation from the European Commission for CTCL, including subtypes pcALCL and MF.

About CTCL

Lymphoma is a general term for a group of cancers that originate in the lymphatic system. There are two major categories of lymphoma: Hodgkin lymphoma and non-Hodgkin lymphoma. Cutaneous lymphomas are a category of non-Hodgkin lymphoma that primarily involve the skin. According to the Cutaneous Lymphoma Foundation, CTCL is the most common type of cutaneous lymphoma and typically presents with red, scaly patches or thickened plaques of skin that often mimic eczema or chronic dermatitis. Progression from limited skin involvement may be accompanied by tumor formation, ulceration and exfoliation, complicated by itching and infections. Advanced stages are defined by involvement of lymph nodes, peripheral blood and internal organs. According to published literature, CD30 is expressed on skin lesions in approximately 50 percent of CTCL patients.

The standard treatment for systemically pretreated CTCL includes skin-directed therapies, radiation and systemic therapies. The systemic therapies currently approved for treatment have demonstrated 30 to 45 percent objective response rates, with low complete response rates.

About ADCETRIS

ADCETRIS is being evaluated broadly in more than 70 ongoing clinical trials, including two phase 3 studies, ECHELON-1 in frontline classical Hodgkin lymphoma and ECHELON-2 in frontline mature T-cell lymphomas, as well as trials in many additional types of CD30-expressing malignancies, including B-cell lymphomas.

ADCETRIS is an ADC comprising an anti-CD30 monoclonal antibody attached by a protease-cleavable linker to a microtubule disrupting agent, monomethyl auristatin E (MMAE), utilizing Seattle Genetics’ proprietary technology. The ADC employs a linker system that is designed to be stable in the bloodstream but to release MMAE upon internalization into CD30-expressing tumor cells.

ADCETRIS for intravenous injection has received approval from the FDA for three indications: (1) regular approval for the treatment of patients with classical Hodgkin lymphoma after failure of autologous hematopoietic stem cell transplantation (auto-HSCT) or after failure of at least two prior multi-agent chemotherapy regimens in patients who are not auto-HSCT candidates, (2) regular approval for the treatment of classical Hodgkin lymphoma patients at high risk of relapse or progression as post-auto-HSCT consolidation, and (3) accelerated approval for the treatment of patients with systemic anaplastic large cell lymphoma (sALCL) after failure of at least one prior multi-agent chemotherapy regimen. The sALCL indication is approved under accelerated approval based on overall response rate. Continued approval for the sALCL indication may be contingent upon verification and description of clinical benefit in confirmatory trials. Health Canada granted ADCETRIS approval with conditions for relapsed or refractory Hodgkin lymphoma and sALCL.

ADCETRIS was granted conditional marketing authorization by the European Commission in October 2012 for two indications: (1) for the treatment of adult patients with relapsed or refractory CD30-positive Hodgkin lymphoma following autologous stem cell transplant (ASCT), or following at least two prior therapies when ASCT or multi-agent chemotherapy is not a treatment option, and (2) the treatment of adult patients with relapsed or refractory sALCL. ADCETRIS has received marketing authorization by regulatory authorities in 65 countries.

In June 2016, the European Commission extended the current conditional approval of ADCETRIS and approved ADCETRIS for the treatment of adult patients with CD30-positive Hodgkin lymphoma at increased risk of relapse or progression following ASCT. See important safety information below.

Seattle Genetics and Takeda are jointly developing ADCETRIS. Under the terms of the collaboration agreement, Seattle Genetics has U.S. and Canadian commercialization rights and Takeda has rights to commercialize ADCETRIS in the rest of the world. Seattle Genetics and Takeda are funding joint development costs for ADCETRIS on a 50:50 basis, except in Japan where Takeda is solely responsible for development costs.

On November 10, 2016 Pfizer Inc. (NYSE:PFE) reported that the European Commission (EC) has approved IBRANCE (palbociclib) for the treatment of women with hormone receptor-positive, human epidermal growth factor receptor 2-negative (HR+/HER2-) locally advanced or metastatic breast cancer (Press release, Pfizer, NOV 10, 2016, View Source [SID1234516471]). The approval is for IBRANCE to be used in combination with an aromatase inhibitor. The approval also covers the use of IBRANCE in combination with fulvestrant in women who have received prior endocrine therapy.

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IBRANCE is the first medicine to be approved in Europe that works by inhibiting cyclin-dependent kinases 4 and 6 (CDK 4/6). It also is the first new medicine approved for the treatment of women with this type of metastatic breast cancer in the first-line setting in nearly 10 years. Women with HR+/HER2- metastatic breast cancer represent about 60 percent of all metastatic breast cancer cases.1

"Today’s approval of IBRANCE in the European Union (EU) brings an innovative and much-needed new treatment option to tens of thousands of women with HR+/HER2- metastatic breast cancer," said Andreas Penk, M.D., regional president, International Developed Markets, Pfizer Oncology. "With strong and consistent data in three pivotal clinical studies and rapid adoption as a standard of care in the U.S., IBRANCE represents a potential new benchmark for the treatment of HR+/HER2- metastatic breast cancer in Europe."

The EC approval is based on a robust submission package including results from the Phase 2 PALOMA-1 trial in postmenopausal women with estrogen receptor-positive (ER+)/HER2- metastatic breast cancer who had not received prior systemic therapy for their advanced disease, the Phase 3 PALOMA-2 trial in the same population and the Phase 3 PALOMA-3 trial in women with HR+/HER2- metastatic breast cancer who had progressed on prior endocrine therapy. All three randomized trials demonstrated that IBRANCE in combination with an endocrine therapy significantly prolonged progression-free survival (PFS) compared to endocrine therapy alone or endocrine therapy with placebo.

Breast cancer is the most common invasive cancer among women in Europe, with more than 464,200 new cases and 131,260 deaths per year.2 Up to 30 percent of women diagnosed with and treated for early breast cancer will go on to develop metastatic breast cancer,3,4 which occurs when the cancer spreads beyond the breast to other parts of the body.5 There is no cure for metastatic breast cancer,6 and patients are in need of new treatment options that help keep their cancer from worsening, manage symptoms and help them maintain quality of life for as long as possible.3,5

"Palbociclib is an exciting advance in the management of women with hormone receptor-positive breast cancer. Patients with this type of breast cancer are usually treated with hormone therapy but many will progress or relapse – and as a result require chemotherapy, which often comes with life-limiting side-effects," said Nicholas Turner, M.D., Ph.D., team leader at The Institute of Cancer Research, London, and consultant medical oncologist at The Royal Marsden NHS Foundation Trust, as well as principal investigator of the PALOMA-3 trial. "Palbociclib, when used in combination with standard hormone therapy, increases the duration of tumor control and is well tolerated by most women – and could delay the need for women with this type of advanced breast cancer to start chemotherapy."

"Metastatic breast cancer patients in Europe need new treatment options available to them," said Kathi Apostolidis, two-time breast cancer survivor and vice president of the European Cancer Patient Coalition. "Metastatic breast cancer places a heavy burden on cancer patients and their families, but patients hope that novel treatments may have the potential to provide better quality of life and outcomes."

About the IBRANCE Pivotal Trials

PALOMA-1

The Phase 2 PALOMA-1 trial evaluated IBRANCE in combination with letrozole compared with letrozole alone as a first-line, or initial, therapy in 165 postmenopausal women with ER+/HER2- advanced breast cancer who had not received previous systemic treatment for their advanced disease. The combination of IBRANCE plus letrozole significantly prolonged PFS compared to letrozole alone (HR=0.488 [95% CI: 0.319–0.748]), with the median PFS of 20.2 months (95% CI: 13.8–27.5) in the IBRANCE arm compared to 10.2 months (95% CI: 5.7–12.6) in women who received letrozole alone. The most common adverse events (≥20%) of any grade reported in patients treated with IBRANCE plus letrozole versus letrozole alone included neutropenia (75% vs 5%), leukopenia (43% vs 3%), fatigue (41% vs 23%), anemia (35% vs 7%), upper respiratory infection (31% vs 18%), nausea (25% vs 13%), stomatitis (25% vs 7%), alopecia (22% vs 3%) and diarrhea (21% vs 10%).7

PALOMA-2

The Phase 3 PALOMA-2 trial evaluated IBRANCE in combination with letrozole compared with letrozole plus placebo as a first-line treatment in 666 postmenopausal women with ER+/HER2- metastatic breast cancer, the same patient population as PALOMA-1. The combination of IBRANCE plus letrozole resulted in a statistically significant improvement in PFS (HR=0.58 [95% CI: 0.46–0.72], P<0.000001), with a median PFS of 24.8 months compared to 14.5 months for those who were treated with letrozole plus placebo. The most common adverse events (≥20%) of any grade reported in patients treated with IBRANCE plus letrozole versus letrozole plus placebo included neutropenia (79.5% vs 6.3%), fatigue (37.4% vs 27.5%), nausea (35.1% vs 26.1%), arthralgia (33.3% vs 33.8%) and alopecia (32.9% vs 15.8%).8

PALOMA-3

The Phase 3 PALOMA-3 trial evaluated IBRANCE in combination with fulvestrant compared with placebo plus fulvestrant in 521 women with HR+/HER2- metastatic breast cancer, regardless of menopausal status, whose disease progressed on or after prior endocrine therapy. The combination of IBRANCE plus fulvestrant substantially improved PFS compared to fulvestrant plus placebo (HR=0.461 [95% CI: 0.360–0.591), P<0.0001), with a median PFS of 9.5 months (95% CI: 9.2–11.0) in the IBRANCE arm compared to 4.6 months (95% CI: 3.5–5.6) in women who received placebo plus fulvestrant. The most common adverse events (≥20%) of any grade reported in PALOMA-3 of IBRANCE plus fulvestrant versus placebo plus fulvestrant included neutropenia (83% vs 4%), leukopenia (53% vs 5%), infections (47% vs 31%), fatigue (41% vs 29%), nausea (34% vs 28%), anemia (30% vs 13%), stomatitis (28% vs 13%), headache (26% vs 20%), diarrhea (24% vs 19%), thrombocytopenia (23% vs 0%) and constipation (20% vs 16%).7

About IBRANCE (palbociclib)

IBRANCE is an oral inhibitor of cyclin-dependent kinases 4 and 6,7 which are key regulators of the cell cycle that trigger cellular progression.9,10 With this latest regulatory milestone, IBRANCE now is approved in more than 50 countries.

IBRANCE (palbociclib) INDICATIONS AND IMPORTANT SAFETY INFORMATION FROM THE U.S. PRESCRIBING INFORMATION

IBRANCE is indicated in the U.S. for the treatment of HR+, HER2- advanced or metastatic breast cancer in combination with letrozole as initial endocrine based therapy in postmenopausal women, or fulvestrant in women with disease progression following endocrine therapy. The indication in combination with letrozole is approved under accelerated approval based on PFS. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.

Neutropenia was the most frequently reported adverse reaction in PALOMA-1 (75%) and PALOMA-3 (83%). In PALOMA-1, Grade 3 (57%) or 4 (5%) decreased neutrophil counts were reported in patients receiving IBRANCE plus letrozole. In PALOMA-3, Grade 3 (56%) or Grade 4 (11%) decreased neutrophil counts were reported in patients receiving IBRANCE plus fulvestrant. Febrile neutropenia has been reported in about 1% of patients exposed to IBRANCE. One death due to neutropenic sepsis was observed in PALOMA-3. Inform patients to promptly report any fever.

Monitor complete blood count prior to starting IBRANCE, at the beginning of each cycle, on Day 14 of first 2 cycles, and as clinically indicated. Dose interruption, dose reduction, or delay in starting treatment cycles is recommended for patients who develop Grade 3 or 4 neutropenia.

Pulmonary embolism (PE) has been reported at a higher rate in patients treated with IBRANCE plus letrozole in PALOMA-1 (5%) and in patients treated with IBRANCE plus fulvestrant in PALOMA-3 (1%) compared with no cases in patients treated either with letrozole alone or fulvestrant plus placebo. Monitor for signs and symptoms of PE and treat as medically appropriate.

Based on the mechanism of action, IBRANCE can cause fetal harm. Advise females of reproductive potential to use effective contraception during IBRANCE treatment and for at least 3 weeks after the last dose. IBRANCE may impair fertility in males and has the potential to cause genotoxicity. Advise male patients with female partners of reproductive potential to use effective contraception during IBRANCE treatment and for 3 months after the last dose. Advise females to inform their healthcare provider of a known or suspected pregnancy. Advise women not to breastfeed during IBRANCE treatment and for 3 weeks after the last dose because of the potential for serious adverse reactions in nursing infants.

The most common adverse reactions (≥10%) of any grade reported in PALOMA-1 of IBRANCE plus letrozole vs letrozole alone included neutropenia (75% vs 5%), leukopenia (43% vs 3%), fatigue (41% vs 23%), anemia (35% vs 7%), upper respiratory infection (31% vs 18%), nausea (25% vs 13%), stomatitis (25% vs 7%), alopecia (22% vs 3%), diarrhea (21% vs 10%), thrombocytopenia (17% vs 1%), decreased appetite (16% vs 7%), vomiting (15% vs 4%), asthenia (13% vs 4%), peripheral neuropathy (13% vs 5%), and epistaxis (11% vs 1%).

Grade 3/4 adverse reactions (≥10%) in PALOMA-1 reported at a higher incidence in the IBRANCE plus letrozole group vs the letrozole alone group included neutropenia (54% vs 1%) and leukopenia (19% vs 0%). The most frequently reported serious adverse events in patients receiving IBRANCE plus letrozole were pulmonary embolism (4%) and diarrhea (2%).

Lab abnormalities occurring in PALOMA-1 (all grades, IBRANCE plus letrozole vs letrozole alone) were decreased WBC (95% vs 26%), decreased neutrophils (94% vs 17%), decreased lymphocytes (81% vs 35%), decreased hemoglobin (83% vs 40%), and decreased platelets (61% vs 16%).

The most common adverse reactions (≥10%) of any grade reported in PALOMA-3 of IBRANCE plus fulvestrant vs fulvestrant plus placebo included neutropenia (83% vs 4%), leukopenia (53% vs 5%), infections (47% vs 31%), fatigue (41% vs 29%), nausea (34% vs 28%), anemia (30% vs 13%), stomatitis (28% vs 13%), headache (26% vs 20%), diarrhea (24% vs 19%), thrombocytopenia (23% vs 0%), constipation (20% vs 16%), vomiting (19% vs 15%), alopecia (18% vs 6%), rash (17% vs 6%), decreased appetite (16% vs 8%), and pyrexia (13% vs 5%).

Grade 3/4 adverse reactions (≥10%) in PALOMA-3 reported at a higher incidence in the IBRANCE plus fulvestrant group vs the fulvestrant plus placebo group included neutropenia (66% vs 1%) and leukopenia (31% vs 2%). The most frequently reported serious adverse reactions in patients receiving IBRANCE plus fulvestrant were infections (3%), pyrexia (1%), neutropenia (1%), and pulmonary embolism (1%).

Lab abnormalities occurring in PALOMA-3 (all grades, IBRANCE plus fulvestrant vs fulvestrant plus placebo) were decreased WBC (99% vs 26%), decreased neutrophils (96% vs 14%), anemia (78% vs 40%), and decreased platelets (62% vs 10%).

Avoid concurrent use of strong CYP3A inhibitors. If patients must be administered a strong CYP3A inhibitor, reduce the IBRANCE dose to 75 mg/day. If the strong inhibitor is discontinued, increase the IBRANCE dose (after 3-5 half-lives of the inhibitor) to the dose used prior to the initiation of the strong CYP3A inhibitor. Grapefruit or grapefruit juice may increase plasma concentrations of IBRANCE and should be avoided. Avoid concomitant use of strong CYP3A inducers. The dose of sensitive CYP3A substrates with a narrow therapeutic index may need to be reduced as IBRANCE may increase their exposure.

IBRANCE has not been studied in patients with moderate to severe hepatic impairment or in patients with severe renal impairment (CrCl <30 mL/min).

On November 10, 2016 Genmab A/S (Nasdaq Copenhagen: GEN) reported that daratumumab (DARZALEX) will be investigated in a Phase III clinical study in combination with carfilzomib (KYPROLIS) and dexamethasone in patients with relapsed/refractory multiple myeloma (Press release, Genmab, NOV 10, 2016, View Source [SID1234516464]). The study will be conducted under a master clinical trial collaboration and supply agreement between Genmab’s licensing partner for daratumumab, Janssen Biotech, Inc., and Onyx Pharmaceuticals, Inc., a wholly-owned subsidiary of Amgen, Inc. The agreement covers all potential opportunities for combining daratumumab and carfilzomib (a proteasome inhibitor) for the treatment of patients with cancer.

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The first study under this collaboration agreement will be a 450 patient Phase III, randomized, open-label, registration study that will seek to determine if daratumumab in combination with carfilzomib (56 mg/m2 twice weekly) and dexamethasone improves progression-free survival (PFS), compared to carfilzomib and dexamethasone alone in patients with multiple myeloma who have received one to three prior therapies. The study is anticipated to start dosing patients in 2017 and will be sponsored by Amgen.
"The new Phase III study combining daratumumab with carfilzomib and dexamethasone is an exciting addition to the broad and expansive development program for daratumumab and illustrates the strategy to explore as many clinical development opportunities for daratumumab as possible, and potentially establish daratumumab as the backbone treatment in multiple myeloma," said Jan van de Winkel, Ph.D., Chief Executive Officer of Genmab.

As part of an earlier collaboration agreement between Janssen and Amgen, a separate, ongoing Phase I study (MMY1001 EQUULEUS) is evaluating the safety and pharmacokinetics of daratumumab in combination with a number of backbone multiple myeloma therapies including carfilzomib in newly diagnosed and relapsed/refractory patients with multiple myeloma.

About multiple myeloma
Multiple myeloma is an incurable blood cancer that starts in the bone marrow and is characterized by an excess proliferation of plasma cells.1 Multiple myeloma is the third most common blood cancer in the U.S., after leukemia and lymphoma.2 Approximately 30,330 new patients are expected to be diagnosed with multiple myeloma and approximately 12,650 people are expected to die from the disease in the U.S. in 2016.3 Globally, it was estimated that 124,225 people would be diagnosed and 87,084 would die from the disease in 2015.4 While some patients with multiple myeloma have no symptoms at all, most patients are diagnosed due to symptoms which can include bone problems, low blood counts, calcium elevation, kidney problems or infections.5 Patients who relapse after treatment with standard therapies, including proteasome inhibitors or immunomodulatory agents, have poor prognoses and few treatment options.6

About DARZALEX (daratumumab)
DARZALEX (daratumumab) injection for intravenous infusion is indicated in the United States for the treatment of patients with multiple myeloma who have received at least three prior lines of therapy, including a proteasome inhibitor (PI) and an immunomodulatory agent, or who are double-refractory to a PI and an immunomodulatory agent.7 DARZALEX is the first monoclonal antibody (mAb) to receive U.S. Food and Drug Administration (FDA) approval to treat multiple myeloma. DARZALEX is indicated in Europe for use as monotherapy for the treatment of adult patients with relapsed and refractory multiple myeloma, whose prior therapy included a PI and an immunomodulatory agent and who have demonstrated disease progression on the last therapy. For more information, visit www.DARZALEX.com.

Daratumumab is a human IgG1k monoclonal antibody (mAb) that binds with high affinity to the CD38 molecule, which is highly expressed on the surface of multiple myeloma cells. It is believed to induce rapid tumor cell death through programmed cell death, or apoptosis,7,8 and multiple immune-mediated mechanisms, including complement-dependent cytotoxicity,7,8 antibody-dependent cellular phagocytosis9,10 and antibody-dependent cellular cytotoxicity.7,8 In addition, daratumumab therapy results in a reduction of immune-suppressive myeloid derived suppressor cells (MDSCs) and subsets of regulatory T cells (Tregs) and B cells (Bregs), all of which express CD38. These reductions in MDSCs, Tregs and Bregs were accompanied by increases in CD4+ and CD8+ T cell numbers in both the peripheral blood and bone marrow.7,11

Daratumumab is being developed by Janssen Biotech, Inc. under an exclusive worldwide license to develop, manufacture and commercialize daratumumab from Genmab. Five Phase III clinical studies with daratumumab in relapsed and frontline settings are currently ongoing, and additional studies are ongoing or planned to assess its potential in other malignant and pre-malignant diseases on which CD38 is expressed, such as smoldering myeloma, non-Hodgkin’s lymphoma and solid tumors.

On November 10, 2016 Genmab A/S (Nasdaq Copenhagen: GEN) reported that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has issued a positive opinion recommending the use, in the European Union, of ofatumumab (Arzerra) in combination with fludarabine and cyclophosphamide (FC) for the treatment of adult patients with relapsed chronic lymphocytic leukemia (CLL) (Press release, Genmab, NOV 10, 2016, View Source [SID1234516463]). The variation to the Marketing Authorization for this indication was submitted to the EMA in March by Novartis under the ofatumumab collaboration between Novartis and Genmab.

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The CHMP’s positive opinion was based on results from the Phase III COMPLEMENT 2 study that evaluated ofatumumab in combination with FC versus FC alone in patients with relapsed CLL. Top-line results from COMPLEMENT 2 were reported in April 2015.

"We are very pleased with the CHMP’s recommendation of Arzerra in this new indication and we hope that Arzerra will soon be available to a wider number of patients in Europe," said Jan van de Winkel, Ph.D., Chief Executive Officer of Genmab.
About CLL

CLL is the most commonly diagnosed adult leukemia in Western countries, and accounts for approximately 1 in 4 cases of leukemia.1 Most CLL patients experience disease progression despite initial response to therapy and may require additional treatment.2

About COMPLEMENT 2
COMPLEMENT 2 (NCT00824265) is an open-label, two-arm, randomized, Phase III study, which included 365 patients in 18 countries with relapsed CLL. Patients in the study were randomized 1:1 to treatment with up to six cycles of ofatumumab in combination with fludarabine and cyclophosphamide (FC) or up to six cycles with fludarabine and cyclophosphamide alone.

The primary endpoint of the study was progression free survival (PFS), which was assessed by an Independent Review Committee (IRC) according to the International Workshop for Chronic Lymphocytic Leukaemia (iwCLL) updated 2008 National Cancer Institute-sponsored Working Group (NCIWG) guidelines.3 The study met the primary endpoint with a median progression free survival in patients receiving ofatumumab in combination with FC of 28.9 months, compared to 18.8 months in patients receiving FC alone (HR =0.67, p=0.0032). Secondary endpoints included overall response rate, overall survival, patient reported outcomes, time to response, duration of response, time to progression, time to next therapy, safety assessments and quality of life. The safety profile observed in this study was consistent with other trials of ofatumumab and no new safety signals were observed.

About Ofatumumab (Arzerra)
Ofatumumab is a human monoclonal antibody that is designed to target the CD20 molecule found on the surface of chronic lymphocytic leukemia (CLL) cells and normal B lymphocytes.
In the United States, Arzerra is approved for use in combination with chlorambucil for the treatment of previously untreated patients with CLL for whom fludarabine-based therapy is considered inappropriate, for use in combination with fludarabine and cyclophosphamide for the treatment of patients with relapsed CLL, and for extended treatment of patients who are in complete or partial response after at least two lines of therapy for recurrent or progressive CLL. In the European Union, Arzerra is approved for use in combination with chlorambucil or bendamustine for the treatment of patients with CLL who have not received prior therapy and who are not eligible for fludarabine-based therapy. In more than 50 countries worldwide, Arzerra is also indicated as monotherapy for the treatment of patients with CLL who are refractory after prior treatment with fludarabine and alemtuzumab.

Please see full Prescribing Information, including Boxed WARNING for Arzerra (ofatumumab).
Arzerra is marketed under a collaboration agreement between Genmab and Novartis. Novartis has rights to develop ofatumumab in autoimmune indications, including multiple sclerosis.