Helix BioPharma Corp. Provides Clinical Development and Strategic Corporate Update

On February 11, 2019 Helix BioPharma Corp. (TSX: HBP), (FSE: HBP) ("Helix" or the "Company"), an immuno-oncology company developing innovative drug candidates for the prevention and treatment of cancer reported an update on the Company’s strategic plans (Press release, Helix BioPharma, FEB 11, 2019, View Source [SID1234533784]).

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Pre-clinical Development

The Company extended its collaboration with the Moffitt Cancer Center as a result of preliminary studies that show L-DOS47 may increase the activity of a PD-1/PD-L1 inhibitor in treating pancreatic cancer. Helix’s plan is to increase the clinical application of L-DOS47 with various combination treatments, including immunotherapies with checkpoint inhibitors.

Clinical Development

As previously announced on November 13, 2018, the Company’s L-DOS47 clinical development program is focused solely on combination therapies in patients with non-small cell lung cancer ("NSCLC").

The Company currently has two L-DOS47 clinical studies underway. The first is a US Phase I program (LDOS001) in combination with pemetrexed and carboplatin which is near completion and has only two more cohorts to complete the study. The second is a European Phase 2b program (LDOS003) in combination with cisplatin and vinorelbine which is ready to enroll patients.

The Company is actively working on an Investigational New Drug ("IND") application with the U.S. Food and Drug Administration ("FDA") for an L-DOS47 pancreatic cancer study in combination with doxorubicin ("LDOS006"). The company expects to file the IND application in March.

The Company is also considering a new L-DOS47 combination study with pemetrexed, cisplatin and immunotherapy, such as Keytruda ("LDOS007").

These clinical programs form part of the Company’s overall strategic plan which includes demonstrating L-DOS47’s broad utility as a drug in combination with leading treatments for lung and pancreatic cancer.

Licensing / Partnerships

The Company continues to work with Deloitte Corporate Finance Inc. The Company has engaged in dialogue with several targeted groups of potential qualified partners with the goal of negotiating on a prospective partnership, alliance or licensing transaction.

Divestiture of Polish subsidiary

The Company has been in discussions with a group that includes ACM Alpha Consulting Management AG ("ACMag") to divest a majority stake in the Company’s wholly owned subsidiary Helix Immuno-Oncology S.A. which the Company is working towards putting it to a vote for shareholder approval at its annual general and special meeting which is to take place no later than April 18, 2019.

Corporate Development

The Company has also been in discussions with several U.S. based financial advisory firms. These discussions include the raising of working capital to finance the Company’s drug development programs as well as exploring possible merger and acquisition opportunities and exploring U.S. listing alternatives, such as Nasdaq.

Conference

Dr. Heman Chao, Helix’s Chief Executive Officer will be the attending BIO CEO Conference in New York on February 11th and 12th and has scheduled several meetings with potential licensing partners and U.S. financial advisory firms.

Seattle Genetics Achieves $30 Million Milestone Payment for European Commission Approval of ADCETRIS® (Brentuximab Vedotin) in Frontline Hodgkin Lymphoma

On February 11, 2019 Seattle Genetics, Inc. (Nasdaq:SGEN) reported that its collaborator, Takeda Pharmaceutical Company Limited, received approval from the European Commission to extend the marketing authorization for ADCETRIS (brentuximab vedotin) to include ADCETRIS in combination with AVD (Adriamycin, vinblastine and dacarbazine) in adults patients with previously untreated CD30+ stage IV classical Hodgkin lymphoma (HL) (Press release, Seattle Genetics, FEB 11, 2019, View Source [SID1234533215]). The decision follows a positive opinion from the Committee for Medicinal Products for Human Use (CHMP) on December 13, 2018. As a result, Seattle Genetics will receive a milestone payment from Takeda of $30 million. ADCETRIS is an antibody-drug conjugate (ADC) directed to CD30, a defining marker of classical HL that plays a role in tumor growth and survival.

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"Receipt of this milestone payment reflects continued progress by our partner Takeda to expand ADCETRIS approved indications globally," said Clay Siegall, Ph.D., President and Chief Executive Officer at Seattle Genetics. "We look forward to continuing our work with Takeda to establish ADCETRIS as the global foundation of care for CD30-expressing lymphomas, including Hodgkin lymphoma."

The marketing authorization for ADCETRIS is based on positive results from the ECHELON-1 phase 3 clinical trial that were presented in the Plenary Scientific Session at the 59thAmerican Society of Hematology (ASH) (Free ASH Whitepaper) annual meeting in December 2017 with simultaneous publication in the New England Journal of Medicine.

In September 2018, the Japanese Ministry of Health, Labour and Welfare approved ADCETRIS in combination with AVD as a frontline treatment option for CD30-positive HL patients in Japan. In March 2018, the U.S. Food and Drug Administration (FDA) approved ADCETRIS in combination with AVD for the treatment of adult patients with previously untreated stage III or IV classical HL based on the positive results of the ECHELON-1 phase 3 clinical trial.

For more information about the European Commission decision, please visit the European Medicines Agency website: www.ema.europa.eu/ema.

About Classical Hodgkin Lymphoma

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. Classical Hodgkin lymphoma is distinguished from other types of lymphoma by the presence of one characteristic type of cell, known as the Reed-Sternberg cell. The Reed-Sternberg cell expresses CD30.

According to the Lymphoma Coalition, over 62,000 people worldwide are diagnosed with Hodgkin lymphoma each year and approximately 25,000 people die each year from this cancer.

About ADCETRIS (brentuximab vedotin)

ADCETRIS is being evaluated broadly in more than 70 clinical trials in CD30-expressing lymphomas. These include three completed phase 3 trials: ECHELON-2 in frontline peripheral T-cell lymphomas, ECHELON-1 in previously untreated Hodgkin lymphoma, and ALCANZA in cutaneous T-cell lymphoma. The phase 3 CHECKMATE 812 trial of ADCETRIS in combination with Opdivo (nivolumab) for relapsed/refractory Hodgkin lymphoma is ongoing.

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 injection for intravenous infusion has received FDA approval for six indications in adult patients with: (1) previously untreated systemic anaplastic large cell lymphoma (sALCL) or other CD30-expressing peripheral T-cell lymphomas (PTCL), including angioimmunoblastic T-cell lymphoma and PTCL not otherwise specified, in combination with cyclophosphamide, doxorubicin, and prednisone, (2) previously untreated Stage III or IV classical Hodgkin lymphoma (cHL), in combination with doxorubicin, vinblastine, and dacarbazine, (3) cHL at high risk of relapse or progression as post-autologous hematopoietic stem cell transplantation (auto-HSCT) consolidation, (4) cHL after failure of auto-HSCT or failure of at least two prior multi-agent chemotherapy regimens in patients who are not auto-HSCT candidates, (5) sALCL after failure of at least one prior multi-agent chemotherapy regimen, and (6) primary cutaneous anaplastic large cell lymphoma (pcALCL) or CD30-expressing mycosis fungoides (MF) who have received prior systemic therapy.

Health Canada granted ADCETRIS approval with conditions for relapsed or refractory Hodgkin lymphoma and sALCL in 2013, and non-conditional approval for post-autologous stem cell transplantation (ASCT) consolidation treatment of Hodgkin lymphoma patients at increased risk of relapse or progression in 2017, and adults with pcALCL or CD30-expressing MF who have had prior systemic therapy in 2018.

ADCETRIS received conditional marketing authorization from the European Commission in October 2012. The approved indications in Europe are: (1) for the treatment of adult patients with relapsed or refractory CD30-positive Hodgkin lymphoma following ASCT, or following at least two prior therapies when ASCT or multi-agent chemotherapy is not a treatment option, (2) the treatment of adult patients with relapsed or refractory sALCL, (3) for the treatment of adult patients with CD30-positive Hodgkin lymphoma at increased risk of relapse or progression following ASCT, and (4) for the treatment of adult patients with CD30-positive cutaneous T-cell lymphoma (CTCL) after at least one prior systemic therapy.

ADCETRIS has received marketing authorization by regulatory authorities in 72 countries for relapsed or refractory Hodgkin lymphoma and sALCL. See select important safety information, including Boxed Warning, 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.

GWT completes £10m ($14m) series A financing

On February 11, 2019 Greywolf Therapeutics, a drug discovery biotechnology company focused on immuno-oncology, reported it has completed a £10 million ($14 million) series A financing round with leading international healthcare investors Andera Partners and Canaan (Press release, Grey Wolf Therapeutics, FEB 11, 2019, https://www.greywolftherapeutics.com/news/gwt-completes-ps10m-14m-series-a-financing [SID1234650152]).

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Greywolf’s novel approach is aimed at directly altering tumour cells, illuminating them for attack and destruction by the immune system. The goal is to exploit this increased tumour visibility in monotherapy and to extend the therapeutic benefit of already approved immunotherapies to many more cancers.

Greywolf is developing small molecule modulators of endoplasmic reticulum aminopeptidases (ERAPs), key proteins in the antigen presentation pathway, to change the neoantigen repertoire in tumours and thereby increase the number and range of neoantigens presented on tumour cells available to engage an immune response.

This unique small molecule immuno-oncology approach builds on the exciting recent advances in cancer immunotherapies that address a key limiting factor for approved treatments, while avoiding the complex and costly personalisation required for other approaches such as neoantigen vaccines.

Greywolf has programs targeting the two homologues of ERAP, ERAP1 and ERAP2, aimed at developing potent and selective modulators, with the lead program being against ERAP1.

Greywolf was co-founded by Peter Joyce, former Project Leader at Vertex Pharmaceuticals, and Tom McCarthy, former President and CEO of Spinifex Pharmaceuticals, and comprises a team of world-leading experts in immuno-oncology, antigen presentation and drug discovery. It is working with the University of Oxford, University of Southampton and has a strategic partnership with Sygnature Discovery, a leading independent provider of drug discovery resources and expertise. Sygnature is also an investor in the Company.

Peter Joyce, Chief Executive Officer of Greyw‍olf Therapeutics, said: "The recent breakthroughs in immunotherapy have fundamentally changed the treatment landscape in oncology, but the fact remains that current approaches only target the minority of tumours that are visible to the immune system, whilst the vast majority of cancers do not respond. There is strong validation for targeting ERAPs to increase tumour visibility and with these funds we are now positioned to build on our existing work and collaborations to deliver a clinical candidate in the coming two to three years."

Tom McCarthy, Executive Chairman of Greywolf Therapeutics, said: "Attracting investors of the calibre of Andera and Canaan is a strong validation of the potential of our approach to broaden the effectiveness of immunotherapy. We believe we have a truly novel approach in targeting tumours themselves, rather than direct regulation of the immune system, and I am excited by the opportunity to work with our investors and talented team on the next steps of Greywolf’s development."

Thierry Hercend, Venture Partner at Andera Partners, said: "Greywolf has identified a highly innovative approach to immuno-oncology and, in Peter and Tom, has founders with very strong scientific and entrepreneurial credentials. With the support of Sygnature, they achieved a significant amount with their seed funding and demonstrated a scientifically rigorous and nimble approach to drug development which we value. I’m confident that with this series A financing, Greywolf will deliver on the full potential of ERAP modulation."

Brent Ahrens, General Partner at Canaan, said: "Greywolf marks Canaan’s first investment in the UK biotechnology sector, and we are excited by the Company’s science and its potential to help the huge numbers of patients yet to receive any benefit from current oncology treatment options."

Raphaël Wisniewski, Partner at Andera, Thierry Hercend, Venture Partner at Andera and Brent Ahrens, General Partner at Canaan have joined Greywolf’s Board of Directors.

European Commission Approves ADCETRIS® (brentuximab vedotin) with AVD, the First New Treatment in Decades for Adults with Previously Untreated CD30+ Stage IV Hodgkin Lymphoma

On February 11, 2019 Takeda Pharmaceutical Company Limited (TSE:4502/NYSE:TAK) reported that the European Commission (EC) extended the current marketing authorization of ADCETRIS (brentuximab vedotin) to include treatment of adult patients with previously untreated CD30+ Stage IV Hodgkin lymphoma in combination with AVD (Adriamycin, vinblastine and dacarbazine) (Press release, Takeda, FEB 11, 2019, View Source [SID1234533216]). ADCETRIS is an antibody-drug conjugate (ADC) directed at CD30, a defining marker of Hodgkin lymphoma. The decision follows a positive opinion from the Committee for Medicinal Products for Human Use (CHMP) on December 13, 2018.

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"The decision by the European Commission is a welcomed advancement for patients with previously untreated Stage IV Hodgkin lymphoma – a population that has not been offered a new treatment option in decades," said Anna Sureda, M.D., Ph.D., Head of the Hematology Department and Hematopoietic Stem Cell Transplant Programme, Institut Català d’Oncologia – Hospital Duran i Reynals. "Patients with Stage IV disease carry a higher risk of progression following their first therapy and experience poorer outcomes as a result. The approval of this regimen may help address this unmet need by providing European physicians and their patients with a new option that showed significant benefit compared to ABVD along with a safety profile consistent with when ADCETRIS is used as a single agent."

"We are pleased that the European Commission has approved ADCETRIS in combination with AVD, which has the potential to represent an important milestone for patients and serves as a testament to Takeda’s longstanding commitment to the Hodgkin lymphoma community," said Jesús Gómez-Navarro, M.D., Vice President, Head of Oncology Clinical Research and Development, Takeda. "The ECHELON-1 clinical trial demonstrated that the addition of ADCETRIS and the removal of bleomycin from the standard ABVD regimen yielded both efficacy and safety benefits in patients. We look forward to making this therapy available for appropriate European patients with Hodgkin lymphoma."

The approval is based on the results of the randomized, open-label, two-arm, multi-center Phase 3 ECHELON-1 study designed to compare ADCETRIS plus AVD to ABVD (Adriamycin, bleomycin, vinblastine and dacarbazine) as a therapy in adult patients with previously untreated Hodgkin lymphoma. The trial achieved its primary endpoint resulting in a statistically significant improvement in modified progression-free survival (PFS) versus the control arm (Hazard ratio [HR] 0.77; p-value=0.035), which corresponds to a 23 percent reduction in the risk of progression, death or need for additional anticancer therapy. Key subgroup analyses showed a larger effect in patients with Stage IV Hodgkin lymphoma in the ADCETRIS plus AVD arm versus the control arm (modified PFS; HR 0.71; p-value = 0.023).

The safety profile of ADCETRIS plus AVD in the ECHELON-1 trial was generally consistent with that known for the single-agent components of the regimen. The most common clinically relevant adverse events of any grade that occurred in at least 15 percent of patients in the ADCETRIS plus AVD and ABVD arms were: neutropenia, constipation, vomiting, fatigue, peripheral sensory neuropathy, diarrhea, pyrexia, peripheral neuropathy, abdominal pain and stomatitis. In both the ADCETRIS plus AVD and ABVD arms, the most common Grade 3 or 4 events were neutropenia, febrile neutropenia and neutrophil count decrease.

This decision by the European Commission means that ADCETRIS in combination with AVD is now approved for marketing of this indication in the 28 member states of the European Union and applicable in Norway, Liechtenstein and Iceland. For further details about the European Commission decision, please visit the European Medicines Agency website: www.ema.europe.eu/ema.

About Hodgkin Lymphoma

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. Hodgkin lymphoma is distinguished from other types of lymphoma by the presence of one characteristic type of cell, known as the Reed-Sternberg cell. The Reed-Sternberg cell expresses CD30.

According to the Lymphoma Coalition, approximately 67,000 people worldwide are diagnosed with Hodgkin lymphoma each year and more than 25,000 people die each year from this cancer.

Up to 30 percent of previously untreated Hodgkin lymphoma patients progress following their first therapy depending on the stage of the disease. Only 50 percent of patients with relapsed or refractory Hodgkin lymphoma achieve long-term remission with high-dose chemotherapy and an autologous stem cell transplant (ASCT), a historically used treatment regimen, highlighting the need for successful treatments for previously untreated patients.

About ADCETRIS

ADCETRIS is an antibody-drug conjugate (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-positive tumor cells.

ADCETRIS injection for intravenous infusion has received FDA approval for six indications in adult patients with: (1) previously untreated systemic anaplastic large cell lymphoma (sALCL) or other CD30-expressing peripheral T-cell lymphomas (PTCL), including angioimmunoblastic T-cell lymphoma and PTCL not otherwise specified, in combination with cyclophosphamide, doxorubicin, and prednisone, (2) previously untreated Stage III or IV classical Hodgkin lymphoma (cHL), in combination with doxorubicin, vinblastine, and dacarbazine, (3) cHL at high risk of relapse or progression as post-autologous hematopoietic stem cell transplantation (auto-HSCT) consolidation, (4) cHL after failure of auto-HSCT or failure of at least two prior multi-agent chemotherapy regimens in patients who are not auto-HSCT candidates, (5) sALCL after failure of at least one prior multi-agent chemotherapy regimen, and (6) primary cutaneous anaplastic large cell lymphoma (pcALCL) or CD30-expressing mycosis fungoides (MF) who have received prior systemic therapy.

Health Canada granted ADCETRIS approval with conditions for relapsed or refractory Hodgkin lymphoma and sALCL in 2013, and non-conditional approval for post-autologous stem cell transplant (ASCT) consolidation treatment of Hodgkin lymphoma patients at increased risk of relapse or progression.

ADCETRIS received conditional marketing authorization from the European Commission in October 2012. The approved indications in Europe are: (1) for the treatment of adult patients with relapsed or refractory CD30-positive Hodgkin lymphoma following ASCT, or following at least two prior therapies when ASCT or multi-agent chemotherapy is not a treatment option, (2) for the treatment of adult patients with relapsed or refractory sALCL, (3) for the treatment of adult patients with CD30-positive Hodgkin lymphoma at increased risk of relapse or progression following ASCT, (4) for the treatment of adult patients with CD30-positive cutaneous T-cell lymphoma (CTCL) after at least one prior systemic therapy and (5) for the treatment of adult patients with previously untreated CD30-positive Stage IV Hodgkin lymphoma in combination with AVD.

ADCETRIS has received marketing authorization by regulatory authorities in more than 70 countries for relapsed or refractory Hodgkin lymphoma and sALCL. See important safety information below.

ADCETRIS is being evaluated broadly in more than 70 clinical trials, including a Phase 3 study in first-line Hodgkin lymphoma (ECHELON-1) and another Phase 3 study in first-line CD30-positive peripheral T-cell lymphomas (ECHELON-2), as well as trials in many additional types of CD30-positive malignancies.

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.

ADCETRIS (brentuximab vedotin) Important Safety Information (European Union)

Please refer to Summary of Product Characteristics (SmPC) before prescribing.

CONTRAINDICATIONS

ADCETRIS is contraindicated for patients with hypersensitivity to brentuximab vedotin and its excipients. In addition, combined use of ADCETRIS with bleomycin causes pulmonary toxicity.

SPECIAL WARNINGS & PRECAUTIONS

Progressive multifocal leukoencephalopathy (PML): John Cunningham virus (JCV) reactivation resulting in progressive multifocal leukoencephalopathy (PML) and death can occur in patients treated with ADCETRIS. PML has been reported in patients who received ADCETRIS after receiving multiple prior chemotherapy regimens. PML is a rare demyelinating disease of the central nervous system that results from reactivation of latent JCV and is often fatal.

Closely monitor patients for new or worsening neurological, cognitive, or behavioral signs or symptoms, which may be suggestive of PML. Suggested evaluation of PML includes neurology consultation, gadolinium-enhanced magnetic resonance imaging of the brain, and cerebrospinal fluid analysis for JCV DNA by polymerase chain reaction or a brain biopsy with evidence of JCV. A negative JCV PCR does not exclude PML. Additional follow up and evaluation may be warranted if no alternative diagnosis can be established Hold dosing for any suspected case of PML and permanently discontinue ADCETRIS if a diagnosis of PML is confirmed.

Be alert to PML symptoms that the patient may not notice (e.g., cognitive, neurological, or psychiatric symptoms).

Pancreatitis: Acute pancreatitis has been observed in patients treated with ADCETRIS. Fatal outcomes have been reported. Closely monitor patients for new or worsening abdominal pain, which may be suggestive of acute pancreatitis. Patient evaluation may include physical examination, laboratory evaluation for serum amylase and serum lipase, and abdominal imaging, such as ultrasound and other appropriate diagnostic measures. Hold ADCETRIS for any suspected case of acute pancreatitis. ADCETRIS should be discontinued if a diagnosis of acute pancreatitis is confirmed.

Pulmonary Toxicity: Cases of pulmonary toxicity, some with fatal outcomes, including pneumonitis, interstitial lung disease, and acute respiratory distress syndrome (ARDS), have been reported in patients receiving ADCETRIS. Although a causal association with ADCETRIS has not been established, the risk of pulmonary toxicity cannot be ruled out. Promptly evaluate and treat new or worsening pulmonary symptoms (e.g. cough, dyspnoea) appropriately. Consider holding dosing during evaluation and until symptomatic improvement.

Serious infections and opportunistic infections: Serious infections such as pneumonia, staphylococcal bacteremia, sepsis/septic shock (including fatal outcomes), and herpes zoster, and opportunistic infections such as Pneumocystis jiroveci pneumonia and oral candidiasis have been reported in patients treated with ADCETRIS. Carefully monitor patients during treatment for emergence of possible serious and opportunistic infections.

Infusion-related reactions (IRR): Immediate and delayed IRR, as well as anaphylaxis, have been reported with ADCETRIS. Carefully monitor patients during and after an infusion. If anaphylaxis occurs, immediately and permanently discontinue administration of ADCETRIS and administer appropriate medical therapy. If an IRR occurs, interrupt the infusion and institute appropriate medical management. The infusion may be restarted at a slower rate after symptom resolution. Patients who have experienced a prior IRR should be premedicated for subsequent infusions. IRRs are more frequent and more severe in patients with antibodies to ADCETRIS.

Tumor lysis syndrome (TLS): TLS has been reported with ADCETRIS. Patients with rapidly proliferating tumor and high tumor burden are at risk of TLS. Monitor these patients closely and manage according to best medical practice.

Peripheral neuropathy (PN): ADCETRIS treatment may cause PN, both sensory and motor. ADCETRIS-induced PN is typically an effect of cumulative exposure to ADCETRIS and is reversible in most cases. Monitor patients for symptoms of neuropathy, such as hypoesthesia, hyperesthesia, paresthesia, discomfort, a burning sensation, neuropathic pain, or weakness. Patients experiencing new or worsening PN may require a delay and a dose reduction or discontinuation of ADCETRIS.

Hematological toxicities: Grade 3 or Grade 4 anemia, thrombocytopenia, and prolonged (equal to or greater than one week) Grade 3 or Grade 4 neutropenia can occur with ADCETRIS. Monitor complete blood counts prior to administration of each dose.

Febrile neutropenia: Febrile neutropenia has been reported with ADCETRIS. Complete blood counts should be monitored prior to administration of each dose of treatment. Closely monitor patients for fever and manage according to best medical practice if febrile neutropenia develops.

When ADCETRIS is administered in combination with AVD, primary prophylaxis with G-CSF is recommended for all patients beginning with the first dose.

Stevens-Johnson syndrome (SJS): SJS and toxic epidermal necrolysis (TEN) have been reported with ADCETRIS. Fatal outcomes have been reported. Discontinue treatment with ADCETRIS if SJS or TEN occurs and administer appropriate medical therapy.

Gastrointestinal (GI) Complications: GI complications, some with fatal outcomes, including intestinal obstruction, ileus, enterocolitis, neutropenic colitis, erosion, ulcer, perforation and haemorrhage, have been reported with ADCETRIS. Promptly evaluate and treat patients if new or worsening GI symptoms occur.

Hepatotoxicity: Elevations in alanine aminotransferase (ALT) and aspartate aminotransferase (AST) have been reported with ADCETRIS. Serious cases of hepatotoxicity, including fatal outcomes, have also occurred. Pre-existing liver disease, comorbidities, and concomitant medications may also increase the risk. Test liver function prior to treatment initiation and routinely monitor during treatment. Patients experiencing hepatotoxicity may require a delay, dose modification, or discontinuation of ADCETRIS.

Hyperglycemia: Hyperglycemia has been reported during trials in patients with an elevated body mass index (BMI) with or without a history of diabetes mellitus. Closely monitor serum glucose for patients who experiences an event of hyperglycemia. Administer anti-diabetic treatment as appropriate.

Renal and Hepatic Impairment: There is limited experience in patients with renal and hepatic impairment. Available data indicate that MMAE clearance might be affected by severe renal impairment, hepatic impairment, and by low serum albumin concentrations.

CD30+ CTCL: The size of the treatment effect in CD30 + CTCL subtypes other than mycosis fungoides (MF) and primary cutaneous anaplastic large cell lymphoma (pcALCL) is not clear due to lack of high level evidence. In two single arm phase II studies of ADCETRIS, disease activity has been shown in the subtypes Sézary syndrome (SS), lymphomatoid papulosis (LyP) and mixed CTCL histology. These data suggest that efficacy and safety can be extrapolated to other CTCL CD30+ subtypes. Carefully consider the benefit-risk per patient and use with caution in other CD30+ CTCL patient types.

Sodium content in excipients: This medicinal product contains 13.2 mg sodium per vial, equivalent to 0.7% of the WHO recommended maximum daily intake of 2 g sodium for an adult.

INTERACTIONS

Patients who are receiving a strong CYP3A4 and P-gp inhibitor, concomitantly with ADCETRIS may have an increased risk of neutropenia. If neutropenia develops, refer to dosing recommendations for neutropenia (see SmPC section 4.2). Co-administration of ADCETRIS with a CYP3A4 inducer did not alter the plasma exposure of ADCETRIS but it appeared to reduce plasma concentrations of MMAE metabolites that could be assayed. ADCETRIS is not expected to alter the exposure to drugs that are metabolized by CYP3A4 enzymes.

PREGNANCY: Advise women of childbearing potential to use two methods of effective contraception during treatment with ADCETRIS and until 6 months after treatment. There are no data from the use of ADCETRIS in pregnant women, although studies in animals have shown reproductive toxicity. Do not use ADCETRIS during pregnancy unless the benefit to the mother outweighs the potential risks to the fetus.

LACTATION (breast-feeding): There are no data as to whether ADCETRIS or its metabolites are excreted in human milk, therefore a risk to the newborn/infant cannot be excluded. With the potential risk, a decision should be made whether to discontinue breast-feeding or discontinue/abstain from therapy with ADCETRIS.

FERTILITY: In nonclinical studies, ADCETRIS treatment has resulted in testicular toxicity, and may alter male fertility. Advise men being treated with ADCETRIS not to father a child during treatment and for up to 6 months following the last dose.

Effects on ability to drive and use machines: ADCETRIS may have a moderate influence on the ability to drive and use machines.

UNDESIRABLE EFFECTS

Monotherapy: The most frequent adverse reactions (≥10%) were infections, peripheral sensory neuropathy, nausea, fatigue, diarrhoea, pyrexia, upper respiratory tract infection, neutropenia, rash, cough, vomiting, arthralgia, peripheral motor neuropathy, infusion-related reactions, pruritus, constipation, dyspnoea, weight decreased, myalgia and abdominal pain. Serious adverse drug reactions occurred in 12% of patients. The frequency of unique serious adverse drug reactions was ≤1%. Adverse events led to treatment discontinuation in 24% of patients.

Combination Therapy: In the study of ADCETRIS as combination therapy with AVD in 662 patients with previously untreated advanced HL, the most common adverse reactions (≥ 10%) were: neutropenia, nausea, constipation, vomiting, fatigue, peripheral sensory neuropathy, diarrhoea, pyrexia, alopecia, peripheral motor neuropathy, decreased weight, abdominal pain, anaemia, stomatitis, febrile neutropenia, bone pain, insomnia, decreased appetite, cough, headache, arthralgia, back pain, dyspnoea, myalgia, upper respiratory tract infection, alanine aminotransferase increased. Serious adverse reactions occurred in 36% of patients. Serious adverse reactions occurring in ≥ 3% of patients included febrile neutropenia (17%), pyrexia (6%), and neutropenia (3%). Adverse events led to treatment discontinuation in 13% of patients.

ADCETRIS (brentuximab vedotin) Important Safety Information (U.S.)

BOXED WARNING

PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY (PML): JC virus infection resulting in PML and death can occur in ADCETRIS-treated patients.

Contraindication

ADCETRIS concomitant with bleomycin due to pulmonary toxicity (e.g., interstitial infiltration and/or inflammation).

Warnings and Precautions

Peripheral neuropathy (PN): ADCETRIS causes PN that is predominantly sensory. Cases of motor PN have also been reported. ADCETRIS-induced PN is cumulative. Monitor for symptoms such as hypoesthesia, hyperesthesia, paresthesia, discomfort, a burning sensation, neuropathic pain, or weakness. Institute dose modifications accordingly.
Anaphylaxis and infusion reactions: Infusion-related reactions (IRR), including anaphylaxis, have occurred with ADCETRIS. Monitor patients during infusion. If an IRR occurs, interrupt the infusion and institute appropriate medical management. If anaphylaxis occurs, immediately and permanently discontinue the infusion and administer appropriate medical therapy. Premedicate patients with a prior IRR before subsequent infusions. Premedication may include acetaminophen, an antihistamine, and a corticosteroid.
Hematologic toxicities: Fatal and serious cases of febrile neutropenia have been reported with ADCETRIS. Prolonged (≥1 week) severe neutropenia and Grade 3 or 4 thrombocytopenia or anemia can occur with ADCETRIS.

Administer G-CSF primary prophylaxis beginning with Cycle 1 for patients who receive ADCETRIS in combination with chemotherapy for previously untreated Stage III/IV cHL or previously untreated PTCL.

Monitor complete blood counts prior to each ADCETRIS dose. Monitor more frequently for patients with Grade 3 or 4 neutropenia. Monitor patients for fever. If Grade 3 or 4 neutropenia develops, consider dose delays, reductions, discontinuation, or G-CSF prophylaxis with subsequent doses.
Serious infections and opportunistic infections: Infections such as pneumonia, bacteremia, and sepsis or septic shock (including fatal outcomes) have been reported in ADCETRIS-treated patients. Closely monitor patients during treatment for bacterial, fungal, or viral infections.
Tumor lysis syndrome: Closely monitor patients with rapidly proliferating tumor and high tumor burden.
Increased toxicity in the presence of severe renal impairment: The frequency of ≥Grade 3 adverse reactions and deaths was greater in patients with severe renal impairment compared to patients with normal renal function. Avoid use in patients with severe renal impairment.
Increased toxicity in the presence of moderate or severe hepatic impairment: The frequency of ≥Grade 3 adverse reactions and deaths was greater in patients with moderate or severe hepatic impairment compared to patients with normal hepatic function. Avoid use in patients with moderate or severe hepatic impairment.
Hepatotoxicity: Fatal and serious cases have occurred in ADCETRIS-treated patients. Cases were consistent with hepatocellular injury, including elevations of transaminases and/or bilirubin, and occurred after the first ADCETRIS dose or rechallenge. Preexisting liver disease, elevated baseline liver enzymes, and concomitant medications may increase the risk. Monitor liver enzymes and bilirubin. Patients with new, worsening, or recurrent hepatotoxicity may require a delay, change in dose, or discontinuation of ADCETRIS.
PML: Fatal cases of JC virus infection resulting in PML have been reported in ADCETRIS-treated patients. First onset of symptoms occurred at various times from initiation of ADCETRIS, with some cases occurring within 3 months of initial exposure. In addition to ADCETRIS therapy, other possible contributory factors include prior therapies and underlying disease that may cause immunosuppression. Consider PML diagnosis in patients with new-onset signs and symptoms of central nervous system abnormalities. Hold ADCETRIS if PML is suspected and discontinue ADCETRIS if PML is confirmed.
Pulmonary toxicity: Fatal and serious events of noninfectious pulmonary toxicity, including pneumonitis, interstitial lung disease, and acute respiratory distress syndrome, have been reported. Monitor patients for signs and symptoms, including cough and dyspnea. In the event of new or worsening pulmonary symptoms, hold ADCETRIS dosing during evaluation and until symptomatic improvement.
Serious dermatologic reactions: Fatal and serious cases of Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) have been reported with ADCETRIS. If SJS or TEN occurs, discontinue ADCETRIS and administer appropriate medical therapy.
Gastrointestinal (GI) complications: Fatal and serious cases of acute pancreatitis have been reported. Other fatal and serious GI complications include perforation, hemorrhage, erosion, ulcer, intestinal obstruction, enterocolitis, neutropenic colitis, and ileus. Lymphoma with preexisting GI involvement may increase the risk of perforation. In the event of new or worsening GI symptoms, including severe abdominal pain, perform a prompt diagnostic evaluation and treat appropriately.
Embryo-fetal toxicity: Based on the mechanism of action and animal studies, ADCETRIS can cause fetal harm. Advise females of reproductive potential of the potential risk to the fetus, and to avoid pregnancy during ADCETRIS treatment and for at least 6 months after the final dose of ADCETRIS.
Most Common (≥20% in any study) Adverse Reactions

Peripheral neuropathy, fatigue, nausea, diarrhea, neutropenia, upper respiratory tract infection, pyrexia, constipation, vomiting, alopecia, decreased weight, abdominal pain, anemia, stomatitis, lymphopenia, and mucositis.

Drug Interactions

Concomitant use of strong CYP3A4 inhibitors or inducers has the potential to affect the exposure to monomethyl auristatin E (MMAE).

Use in Specific Populations

Moderate or severe hepatic impairment or severe renal impairment: MMAE exposure and adverse reactions are increased. Avoid use.

Advise males with female sexual partners of reproductive potential to use effective contraception during ADCETRIS treatment and for at least 6 months after the final dose of ADCETRIS.

Advise patients to report pregnancy immediately and avoid breastfeeding while receiving ADCETRIS.

Phase 3 ARCHES Trial Shows XTANDI® (enzalutamide) Significantly Improved Radiographic Progression-Free Survival in Men with Metastatic Hormone-Sensitive Prostate Cancer

On February 11, 2019 Pfizer Inc. (NYSE: PFE) and Astellas Pharma Inc. (TSE: 4503, President and CEO: Kenji Yasukawa, Ph.D., "Astellas") reported results from the Phase 3 ARCHES trial in men with metastatic hormone-sensitive prostate cancer (mHSPC) (Press release, Pfizer, FEB 11, 2019, View Source [SID1234533217]). Prostate cancer is considered metastatic once the cancer has spread outside of the prostate gland to other parts of the body.1 Men are considered hormone (or castration) sensitive if their disease still responds to medical or surgical treatment to lower testosterone levels.2

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The results show that XTANDI (enzalutamide) plus androgen deprivation therapy (ADT) met the primary endpoint by significantly reducing the risk of radiographic progression or death by 61% versus ADT alone (n=1,150; HR=0.39 [95% CI: 0.30-0.50]; p<0.0001). These data will be presented in an oral session at the 2019 Genitourinary Cancers Symposium in San Francisco (Abstract #687; Thursday, February 14th, 1:55 PM PT).

"The ARCHES trial demonstrated that XTANDI plus standard hormonal therapy delayed disease progression, and if approved, has the potential to be an important treatment option for men with prostate cancer that has spread but has not yet become hormone resistant," said Andrew Armstrong, M.D., Professor of Medicine, Surgery, Pharmacology and Cancer Biology, and Director of Research in the Duke Cancer Institute’s Center for Prostate and Urologic Cancers.

Median time to a radiographic progression-free survival (rPFS) event was not reached in the XTANDI plus ADT arm, while median time to an rPFS event in the ADT alone arm was 19.4 months. Significant improvements in rPFS were also observed in all prespecified subgroups including disease volume, pattern of disease localization at baseline, geographic region, and prior docetaxel use (HRs=0.24-0.53). Secondary endpoints reported in the abstract showed that XTANDI plus ADT reduced the risk of PSA progression (HR=0.19 [95% CI: 0.13-0.26]; p<0.0001) and reduced the risk of starting a new antineoplastic therapy (HR=0.28 [95% CI: 0.20-0.40]; p<0.0001) compared to ADT alone. Undetectable PSA and objective response rates were also higher in men treated with XTANDI plus ADT versus ADT alone (68.1% versus 17.6%; p<0.0001 and 83.1% versus 63.7%; p<0.0001, respectively). Treatment with XTANDI plus ADT did not significantly reduce the risk of deterioration in urinary symptoms compared to ADT alone. At the time of the analysis, overall survival (OS) data were not mature.

Adverse events (AEs) in the ARCHES clinical trial were generally consistent with those reported in enzalutamide clinical trials in patients with castration-resistant prostate cancer (CRPC). Grade 3 or 4 AEs were reported in 23.6 percent of men receiving XTANDI plus ADT versus 24.7 percent of men receiving ADT alone. Common AEs (occurring in at least 5 percent of patients) that were reported more often in patients treated with XTANDI plus ADT versus those treated with ADT alone included hot flush, fatigue, arthralgia, hypertension, nausea, musculoskeletal pain, diarrhea, asthenia and dizziness.

Based on the ARCHES results, the companies intend to discuss these data with global health authorities to potentially support a new indication for XTANDI in men with mHSPC. XTANDI is currently approved in the U.S. and Japan for the treatment of CRPC and in the EU for the treatment of metastatic and high-risk non-metastatic CRPC.

Seven additional abstracts evaluating XTANDI will also be presented at the 2019 Genitourinary Cancers Symposium.

About ARCHES

The Phase 3, randomized, double-blind, placebo-controlled, multi-national trial enrolled 1,150 patients with metastatic hormone-sensitive prostate cancer (mHSPC) at sites in the United States, Canada, Europe, South America and the Asia-Pacific region. Patients in the ARCHES trial were randomized to receive XTANDI 160 mg daily or placebo and continued on a luteinizing hormone-releasing hormone (LHRH) agonist or antagonist or had a history of bilateral orchiectomy. The ARCHES trial included patients with both low- and high-volume disease and both newly diagnosed patients with mHSPC and patients who had prior definitive therapy and subsequently developed metastatic disease. The trial also included some patients who had received recent treatment with docetaxel for mHSPC, but whose disease had not progressed. The primary endpoint of the trial was radiographic progression-free survival (rPFS), defined as the time from randomization to the first objective evidence of radiographic disease progression as assessed by central review, or death within 24 weeks of treatment discontinuation. For more information on the ARCHES (NCT02677896) trial, go to www.clinicaltrials.gov.

About Metastatic Hormone-Sensitive Prostate Cancer

In men with prostate cancer, the disease is considered metastatic once the cancer has spread outside of the prostate gland to other parts of the body, such as the bones, lymph nodes, bladder and rectum.1 Men are considered hormone (or castration) sensitive if their disease still responds to medical or surgical treatment to lower testosterone levels.2 Approximately 38,000 men in the U.S. develop metastatic HSPC every year.3,4

About XTANDI (enzalutamide) capsules

XTANDI (enzalutamide) is an androgen receptor inhibitor indicated for the treatment of patients with castration-resistant prostate cancer.

As part of Pfizer and Astellas’ ongoing commitment to the clinical development of enzalutamide, XTANDI is also being evaluated in the EMBARK trial, in men with high-risk non-metastatic HSPC. Details about EMBARK (NCT02319837) are available on www.clinicaltrials.gov.

Important Safety Information for XTANDI in CRPC

Warnings and Precautions

Seizure occurred in 0.4% of patients receiving XTANDI in clinical studies. In a study of patients with predisposing factors for seizure, 2.2% of XTANDI-treated patients experienced a seizure. Patients in the study had one or more of the following pre-disposing factors: use of medications that may lower the seizure threshold; history of traumatic brain or head injury, cerebrovascular accident or transient ischemic attack, Alzheimer’s disease, meningioma, or leptomeningeal disease from prostate cancer, unexplained loss of consciousness within the last 12 months, history of seizure, presence of a space occupying lesion of the brain, history of arteriovenous malformation, or history of brain infection. It is unknown whether anti-epileptic medications will prevent seizures with XTANDI. Advise patients of the risk of developing a seizure while taking XTANDI and of engaging in any activity where sudden loss of consciousness could cause serious harm to themselves or others. Permanently discontinue XTANDI in patients who develop a seizure during treatment.

Posterior Reversible Encephalopathy Syndrome (PRES) In post approval use, there have been reports of PRES in patients receiving XTANDI. PRES is a neurological disorder which can present with rapidly evolving symptoms including seizure, headache, lethargy, confusion, blindness, and other visual and neurological disturbances, with or without associated hypertension. A diagnosis of PRES requires confirmation by brain imaging, preferably MRI. Discontinue XTANDI in patients who develop PRES.

Hypersensitivity reactions, including edema of the face (0.5%), tongue (0.1%), or lip (0.1%) have been observed with XTANDI in clinical trials. Pharyngeal edema has been reported in post-marketing cases. Advise patients who experience any symptoms of hypersensitivity to temporarily discontinue XTANDI and promptly seek medical care. Permanently discontinue XTANDI for serious hypersensitivity reactions.

Ischemic Heart Disease In the placebo-controlled clinical studies, ischemic heart disease occurred more commonly in patients on the XTANDI arm compared to patients on the placebo arm (2.7% vs 1.2%). Grade 3-4 ischemic events occurred in 1.2% of patients on XTANDI versus 0.5% on placebo. Ischemic events led to death in 0.4% of patients on XTANDI compared to 0.1% on placebo. Monitor for signs and symptoms of ischemic heart disease. Optimize management of cardiovascular risk factors, such as hypertension, diabetes, or dyslipidemia. Discontinue XTANDI for Grade 3-4 ischemic heart disease.

Falls and Fractures In the placebo-controlled clinical studies, falls occurred in 10% of patients treated with XTANDI compared to 4% of patients treated with placebo. Fractures occurred in 8% of patients treated with XTANDI and in 3% of patients treated with placebo. Evaluate patients for fracture and fall risk. Monitor and manage patients at risk for fractures according to established treatment guidelines and consider use of bone-targeted agents.

Embryo-Fetal Toxicity Safety and efficacy of XTANDI have not been established in females. XTANDI can cause fetal harm and loss of pregnancy when administered to a pregnant female. Advise males with female partners of reproductive potential to use effective contraception during treatment with XTANDI and for 3 months after the last dose of XTANDI. XTANDI should not be handled by females who are or may become pregnant.

Adverse Reactions

The most common adverse reactions (≥ 10%) that occurred more frequently (≥ 2% over placebo) in the XTANDI patients from the randomized placebo-controlled trials were asthenia/fatigue, decreased appetite, hot flush, arthralgia, dizziness/vertigo, hypertension, headache and weight decreased. In the bicalutamide-controlled study, the most common adverse reactions (≥ 10%) reported in XTANDI patients were asthenia/fatigue, back pain, musculoskeletal pain, hot flush, hypertension, nausea, constipation, diarrhea, upper respiratory tract infection, and weight loss.

In the placebo-controlled study of metastatic CRPC (mCRPC) patients taking XTANDI who previously received docetaxel, Grade 3 and higher adverse reactions were reported among 47% of XTANDI patients and 53% of placebo patients. Discontinuations due to adverse events were reported for 16% of XTANDI patients and 18% of placebo patients. In the placebo-controlled study of chemotherapy-naïve mCRPC patients, Grade 3-4 adverse reactions were reported in 44% of XTANDI patients and 37% of placebo patients. Discontinuations due to adverse events were reported for 6% of both study groups. In the placebo-controlled study of non-metastatic CRPC (nmCRPC) patients, Grade 3 or higher adverse reactions were reported in 31% of XTANDI patients and 23% of placebo patients. Discontinuations with an adverse event as the primary reason were reported for 9% of XTANDI patients and 6% of placebo patients. In the bicalutamide-controlled study of chemotherapy-naïve mCRPC patients, Grade 3-4 adverse reactions were reported in 39% of XTANDI patients and 38% of bicalutamide patients. Discontinuations with an AE as the primary reason were reported for 8% of XTANDI patients and 6% of bicalutamide patients.

Lab Abnormalities: In the two placebo-controlled trials in patients with mCRPC, Grade 1-4 neutropenia occurred in 15% of XTANDI patients (1% Grade 3-4) and 6% of placebo patients (0.5% Grade 3-4). In the placebo-controlled trial in patients with nmCRPC, Grade 1-4 neutropenia occurred in 8% of patients receiving XTANDI (0.5% Grade 3-4) and in 5% of patients receiving placebo (0.2% Grade 3-4).

Hypertension: In the two placebo-controlled trials in patients with mCRPC, hypertension was reported in 11% of XTANDI patients and 4% of placebo patients. Hypertension led to study discontinuation in <1% of patients in each arm. In the placebo-controlled trial in patients with nmCRPC, hypertension was reported in 12% of patients receiving XTANDI and 5% of patients receiving placebo.

Drug Interactions

Effect of Other Drugs on XTANDI Avoid strong CYP2C8 inhibitors, as they can increase the plasma exposure to XTANDI. If co-administration is necessary, reduce the dose of XTANDI. Avoid strong CYP3A4 inducers as they can decrease the plasma exposure to XTANDI. If co-administration is necessary, increase the dose of XTANDI.

Effect of XTANDI on Other Drugs Avoid CYP3A4, CYP2C9, and CYP2C19 substrates with a narrow therapeutic index, as XTANDI may decrease the plasma exposures of these drugs. If XTANDI is co-administered with warfarin (CYP2C9 substrate), conduct additional INR monitoring.