Amgen Receives CHMP Positive Opinions For Two New Treatment Options For Patients With Blood Cancer In Europe
Pivotal Study Demonstrated Kyprolis® (Carfilzomib) in Combination With Standard of Care can Extend Time Patients Live Without Disease Progressing
BLINCYTO® (Blinatumomab) is First Bispecific T cell Engager (BiTE®) Antibody Construct to be Granted Positive CHMP Opinion
25 Sep, 2015, 07:27 ET
THOUSAND OAKS, Calif., Sept. 25, 2015 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) adopted positive opinions recommending marketing authorization for:
- Kyprolis® (carfilzomib) in combination with lenalidomide and dexamethasone for the treatment of adult patients with multiple myeloma who have received at least one prior therapy.
- BLINCYTO® (blinatumomab) as a conditional marketing authorization for the treatment of adults with Philadelphia chromosome-negative (Ph-) relapsed or refractory B-precursor acute lymphoblastic leukemia (ALL).
"We are pleased to receive positive CHMP opinions for Kyprolis and BLINCYTO as this is an important step in providing new treatment options for patients in Europe with rare forms of cancer," said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. "For patients with multiple myeloma, periods of remission become shorter following each new treatment regimen, underscoring the need for additional treatment options. The results of the ASPIRE study demonstrate that Kyprolis extended the time patients live without their disease progressing. Additionally, there is a critical need for new therapies for patients with relapsed or refractory B-cell precursor ALL."
Kyprolis is a proteasome inhibitor for use in the treatment of patients with relapsed multiple myeloma. Proteasomes play an important role in cell function and growth by breaking down proteins that are damaged or no longer needed. Kyprolis blocks proteasomes, which leads to an excessive build-up of proteins within cells. In some cells, Kyprolis can cause cell death, especially in myeloma cells because they are more likely to contain a higher amount of abnormal proteins.
BLINCYTO is the first clinical validation of the bispecific T cell engager (BiTE®) platform, an innovative approach that can help the body's own immune system fight cancer.
The CHMP positive opinions will now be reviewed by the European Commission and if granted, the two products will have marketing authorization in the 28 member countries of the European Union (EU), as well as Iceland, Lichtenstein and Norway.
About Multiple Myeloma
Multiple myeloma is an incurable blood cancer, characterized by a recurring pattern of remission and relapse. Multiple myeloma is an orphan disease and accounts for approximately 1 percent of all cancers1,2.
About Kyprolis® (carfilzomib)
Kyprolis was granted orphan drug designation by the EMA in 2008, and in February 2015, its Marketing Authorization Application (MAA) was granted accelerated assessment by the EMA. Kyprolis® (carfilzomib) for Injection was approved as a monotherapy in the U.S. in July 2012, and in combination with lenalidomide and dexamethasone in July 2015. Kyprolis is also approved in Argentina, Israel, Kuwait, Mexico and Thailand.
Kyprolis is a product of Onyx Pharmaceuticals, Inc. Onyx Pharmaceuticals is a subsidiary of Amgen and holds development and commercialization rights to Kyprolis globally, excluding Japan.
For more information about Kyprolis, visit www.kyprolis.com.
About Kyprolis European Marketing Authorization Application
The MAA was based on data from the Phase 3 ASPIRE (CArfilzomib, Lenalidomide, and DexamethaSone versus Lenalidomide and Dexamethasone for the treatment of PatIents with Relapsed Multiple MyEloma) trial. The study showed that patients treated with Kyprolis in combination with lenalidomide and dexamethasone (regimen referred to as KRd) had increased median time to progressive disease (PD) or death by 8.7 months compared to patients treated with lenalidomide and dexamethasone (regimen referred to as Rd) (26.3 months for KRd compared to 17.6 months for Rd with HR=0.69; 95 percent CI: 0.57-0.83; 1-sided p<0.0001). Discontinuation of treatment due to adverse events (AEs) occurred in 15 percent of patients in the KRd arm versus 18 percent of patients in the Rd arm.
The international, randomized Phase 3 ASPIRE trial evaluated Kyprolis in combination with lenalidomide and dexamethasone, versus lenalidomide and dexamethasone alone, in patients with relapsed multiple myeloma following treatment with one to three prior regimens. The primary endpoint of the trial was progression-free survival (PFS), defined as the time from randomization to disease progression or death due to any cause, whichever is earlier. The study showed that patients treated with Kyprolis in combination with lenalidomide and low-dose dexamethasone had increased median time to PD or death by 8.7 months compared to patients treated with lenalidomide and dexamethasone (26.3 months for KRd compared to 17.6 months for Rd with HR=0.69; 95 percent CI: 0.57-0.83; 1-sided p<0.0001). Secondary endpoints included overall survival (OS), overall response rate (ORR), duration of response (DOR), disease control rate, health-related quality of life (HR-QoL) and safety. Patients were randomized to receive Kyprolis (20 mg/m2 on days 1 and 2 of cycle one only, escalating to 27 mg/m2 subsequently), in addition to a standard dosing schedule of lenalidomide (25 mg per day for 21 days on, 7 days off) and dexamethasone (40 mg per week in 4 week cycles), versus lenalidomide and dexamethasone alone. In the Kyprolis arm, patients were given a 10 minute infusion on days 1, 2, 8, 9, 15 and 16. Kyprolis was omitted on days 8 and 9 during cycles 13-18 and not administered beyond 18 cycles. The study randomized 792 patients at sites in North America, Europe and Israel.
While the data for median OS are not yet mature based on the prespecified statistical boundary at the interim (1-sided p-value of smaller than 0.0051), the analysis showed a trend in favor of KRd compared with Rd (HR=0.79; 95 percent CI: 0.63-0.99; one-sided p=0.018, two-sided p=0.04). Patients continue to be monitored for OS. The ORR was 87.1 percent with KRd and 66.7 percent with Rd. Median DOR was 28.6 months for patients receiving KRd (95 percent CI, 24.9 to 31.3 months) and 21.2 months for patients receiving Rd (95 percent CI, 16.7 to 25.8 months). In the KRd and Rd groups, 32 percent versus 9 percent of patients achieved a complete response or higher (stringent complete response [sCR] or complete response [CR]), a measurement indicating depth of response.
The rate of deaths due to AEs within 30 days of the last dose was balanced between the KRd arm and the Rd arm. The most common causes of death not due to PD occurring in patients in the KRd arm compared to the Rd arm included cardiac disorders (3 percent versus 2 percent), infection (2 percent versus 3 percent), renal (0 percent versus less than 1 percent) and other AEs (2 percent versus 3 percent). Serious AEs were reported in 60 percent of the patients in the KRd arm and 54 percent of the patients in the Rd arm. The most common serious AEs reported in the KRd arm compared to the Rd arm were pneumonia (14 percent versus 11 percent), respiratory tract infection (4 percent versus 2 percent), pyrexia (4 percent versus 2 percent) and pulmonary embolism (3 percent versus 2 percent). Discontinuation of treatment due to AEs occurred in 15 percent of patients in the KRd arm versus 18 percent of patients in the Rd arm. AEs leading to discontinuation of Kyprolis occurred in 12 percent of patients and the most common events included pneumonia (1 percent), myocardial infarction (1 percent) and upper respiratory tract infection (1 percent).
The ASPIRE data were presented at the 56th Annual Meeting of the American Society of Hematology and published in The New England Journal of Medicine in December 2014.3
About Acute Lymphoblastic Leukemia (ALL)
It is estimated that there are close to 600 adults with Ph- relapsed or refractory B-precursor ALL in France, Germany, Italy, Spain, and the U.K.4
About BLINCYTO® (blinatumomab)
BLINCYTO is a bispecific CD19-directed CD3 T cell engager (BiTE®) antibody construct that binds specifically to CD19 expressed on the surface of cells of B-lineage origin and CD3 expressed on the surface of T cells.
BiTE® antibody constructs are a type of immunotherapy being investigated for fighting cancer by helping the body's immune system to detect and target malignant cells. The modified antibodies are designed to engage two different targets simultaneously, thereby juxtaposing T cells (a type of white blood cell capable of killing other cells perceived as threats) to cancer cells. BiTE® antibody constructs help place the T cells within reach of the targeted cell, with the intent of allowing T cells to inject toxins and trigger the cancer cell to die (apoptosis). BiTE® antibody constructs are currently being investigated for their potential to treat a wide variety of cancers.
BLINCYTO was granted breakthrough therapy and priority review designations by the U.S. Food and Drug Administration, and is now approved in the U.S. for the treatment of Ph- relapsed or refractory B-cell precursor ALL. This indication is approved under accelerated approval. Continued approval for this indication may be contingent upon verification of clinical benefit in subsequent trials.
About BLINCYTO European Conditional Marketing Authorization Application
The CHMP recommended granting BLINCYTO a conditional marketing authorization for the treatment of adults with Ph- relapsed or refractory B-precursor ALL.
Conditional license requires the license to be renewed every year and it will be converted to full standard license once post-licensing commitments have been fulfilled. Amgen expects a decision on the conditional MAA from the European Commission in the coming months.
The BLINCYTO conditional marketing authorization application is based on results of the '211 and '206 trials. In the '211 study:
- 42.9 percent of evaluable patients receiving BLINCYTO achieved complete remission or complete remission with partial hematological recovery (CR/CRh*).
- 17 percent of patients underwent allogeneic hematopoietic stem cell transplantation (HSCT) in CR/CRh* induced with BLINCYTO
- 82.2 percent of those who achieved CR/CRh* achieved deep molecular remission, or minimal residual disease (MRD) response, a measure of eradication of residual disease at the molecular level.
- The most serious adverse reactions included: infections (31.7 percent), neurologic events (16.4 percent), neutropenia/febrile neutropenia (15.3 percent), cytokine release syndrome (0.5 percent) and tumor lysis syndrome (0.5 percent).
About Study '211
Study '211 evaluated blinatumomab in an open-label, multicenter, single-arm Phase 2 study. Eligible patients were at least 18 years of age with Ph- relapsed or refractory B-precursor ALL. Relapsed or refractory was defined as relapsed with a first remission duration of less than or equal to 12 months in first salvage, or relapsed or refractory after the first salvage, or relapsed within 12 months of allogeneic hematopoietic stem cell transplantation (HSCT), and greater than or equal to 10 percent blasts in bone marrow. The primary endpoint was the CR/CRh* rate within two cycles of blinatumomab. Of the 189 patients evaluated in the trial, 42.9 percent (81/189; 95 percent CI, 35.7 – 50.2) achieved CR or CRh* within two cycles of treatment with blinatumomab with the majority of responses (79 percent [64/81]) occurring within the first cycle of treatment. In a prespecified exploratory analysis, 82.2 percent (60/73) of MRD evaluable patients with CR/CRh* also had a MRD response. The most common adverse reactions (greater than 20 percent) were infusion-related reactions (67.2 percent), infections (63 percent), pyrexia (59.8 percent), headache (34.4 percent), febrile neutropenia (28 percent), peripheral edema (25.9 percent), nausea (24.3 percent), hypokalemia (23.8 percent), constipation (20.6 percent) and anemia (20.1 percent). The most serious adverse reactions that occurred during blinatumomab treatment included: infections (31.7 percent), neurologic events (16.4 percent), neutropenia/febrile neutropenia (15.3 percent), cytokine release syndrome (0.5 percent) and tumor lysis syndrome (0.5 percent).
About Study '206
Study '206 evaluated the safety and efficacy of blinatumomab in an open-label, multicenter, dose-escalation Phase 2 study of 36 patients, who were at least 18 years of age with B-precursor ALL relapsed after at least induction and consolidation or having refractory disease with greater than 5 percent blasts in bone marrow, had an Eastern Cooperative Oncology Group (ECOG) performance status of at most 2, had a life expectancy of at least 12 weeks, and who did not have autologous HSCT within six weeks prior to start of treatment, allogeneic HSCT within three months prior to start of treatment, or previous treatment with blinatumomab.
The CR/CRh* rate was 69.4 percent (25/36) with 15 patients achieving CR (41.7 percent; 95 percent CI, 25.5 percent - 59.2 percent), and 10 patients achieving CRh* (27.8 percent; 95 percent CI, 14.2 percent - 45.2 percent). Of the patients with hematologic CR, 88 percent (22/25) also had MRD responses. The median duration of remission was 8.9 months, and the median relapse-free survival (RFS) was 7.6 months. The median OS was 9.8 months. Overall safety results from this study were consistent with the known blinatumomab safety profile.
Kyprolis U.S. Product Safety Information
Important Safety Information Regarding Kyprolis (carfilzomib) for Injection U.S. Indication
This safety information is specific to the current U.S. approved indication
New onset or worsening of pre-existing cardiac failure (e.g., congestive heart failure, pulmonary edema, and decreased ejection fraction), restrictive cardiomyopathy, myocardial ischemia, and myocardial infarction including fatalities have occurred following administration of Kyprolis. Death due to cardiac arrest has occurred within a day of Kyprolis administration.
Withhold Kyprolis for Grade 3 or 4 cardiac adverse events until recovery, and consider whether to restart Kyprolis based on a benefit/risk assessment.
Adequate hydration is required prior to each dose in Cycle 1. Monitor all patients for evidence of volume overload, especially patients at risk for cardiac failure. Adjust total fluid intake as clinically appropriate in patients with baseline cardiac failure or who are at risk for cardiac failure.Patients ≥ 75 years, the risk of cardiac failure is increased. Patients with New York Heart Association Class III and IV heart failure, recent myocardial infarction, and conduction abnormalities may be at greater risk for cardiac complications.
Acute Renal Failure
Cases of acute renal failure and renal insufficiency adverse events (renal impairment, acute renal failure, and renal failure) have occurred in patients receiving Kyprolis. Acute renal failure was reported more frequently in patients with advanced relapsed and refractory multiple myeloma who received Kyprolis monotherapy. This risk was greater in patients with a baseline reduced estimated creatinine clearance. Monitor renal function with regular measurement of the serum creatinine and/or estimated creatinine clearance. Reduce or withhold dose as appropriate.
Tumor Lysis Syndrome
Cases of Tumor Lysis Syndrome (TLS), including fatal outcomes, have occurred in patients receiving Kyprolis. Patients with multiple myeloma and a high tumor burden should be considered at greater risk for TLS. Adequate hydration is required prior to each dose in Cycle 1, and in subsequent cycles as needed. Consider uric acid lowering drugs in patients at risk for TLS. Monitor for evidence of TLS during treatment and manage promptly. Withhold Kyprolis until TLS is resolved.
Acute Respiratory Distress Syndrome (ARDS), acute respiratory failure, and acute diffuse infiltrative pulmonary disease such as pneumonitis and interstitial lung disease have occurred in patients receiving Kyprolis. Some events have been fatal. In the event of drug-induced pulmonary toxicity, discontinue Kyprolis.
Pulmonary arterial hypertension (PAH) was reported in patients treated with Kyprolis. Evaluate with cardiac imaging and/or other tests as indicated. Withhold Kyprolis for PAH until resolved or returned to baseline and consider whether to restart Kyprolis based on a benefit/risk assessment.
Dyspnea was reported in patients treated with Kyprolis. Evaluate dyspnea to exclude cardiopulmonary conditions including cardiac failure and pulmonary syndromes. Stop Kyprolis for Grade 3 or 4 dyspnea until resolved or returned to baseline. Consider whether to restart Kyprolis based on a benefit/risk assessment.
Hypertension, including hypertensive crisis and hypertensive emergency, has been observed with Kyprolis. Some of these events have been fatal. Monitor blood pressure regularly in all patients. If hypertension cannot be adequately controlled, withhold Kyprolis and evaluate. Consider whether to restart Kyprolis based on a benefit/risk assessment.
Venous thromboembolic events (including deep venous thrombosis and pulmonary embolism) have been observed with Kyprolis. Thromboprophylaxis is recommended and should be based on an assessment of the patient's underlying risks, treatment regimen, and clinical status.
Infusion reactions, including life-threatening reactions, have occurred in patients receiving Kyprolis. Symptoms include fever, chills, arthralgia, myalgia, facial flushing, facial edema, vomiting, weakness, shortness of breath, hypotension, syncope, chest tightness, or angina. These reactions can occur immediately following or up to 24 hours after administration of Kyprolis. Premedicate with dexamethasone to reduce the incidence and severity of infusion reactions. Inform patients of the risk and of symptoms of an infusion reaction and to contact a physician immediately if they occur.
Kyprolis causes thrombocytopenia with recovery to baseline platelet count usually by the start of the next cycle. Thrombocytopenia was reported in patients receiving Kyprolis. Monitor platelet counts frequently during treatment with Kyprolis. Reduce or withhold dose as appropriate.
Hepatic Toxicity and Hepatic Failure
Cases of hepatic failure, including fatal cases, have been reported during treatment with Kyprolis. Kyprolis can cause increased serum transaminases. Monitor liver enzymes regularly. Reduce or withhold dose as appropriate.
Thrombotic Thrombocytopenic Purpura /Hemolytic Uremic Syndrome (TTP/HUS)
Cases of TTP/HUS including fatal outcome have occurred in patients receiving Kyprolis. Monitor for signs and symptoms of TTP/HUS. Discontinue Kyprolis if diagnosis is suspected. If the diagnosis of TTP/HUS is excluded, Kyprolis may be restarted. The safety of reinitiating Kyprolis therapy in patients previously experiencing TTP/HUS is not known.
Posterior Reversible Encephalopathy Syndrome (PRES)
Cases of PRES have occurred in patients receiving Kyprolis. PRES was formerly known as Reversible Posterior Leukoencephalopathy Syndrome. Consider a neuro-radiological imaging (MRI) for onset of visual or neurological symptoms. Discontinue Kyprolis if PRES is suspected and evaluate. The safety of reinitiating Kyprolis therapy in patients previously experiencing PRES is not known.
Kyprolis can cause fetal harm when administered to a pregnant woman based on its mechanism of action and findings in animals.
Females of reproductive potential should be advised to avoid becoming pregnant while being treated with Kyprolis and the potential hazard to the fetus if Kyprolis is used during pregnancy.
The most common adverse events occurring in at least 20% of patients treated with Kyprolis in monotherapy trials: anemia, fatigue, thrombocytopenia, nausea, pyrexia, decreased platelets, dyspnea, diarrhea, decreased lymphocyte, headache, decreased hemoglobin, cough, edema peripheral.
The most common adverse events occurring in at least 20% of patients treated with Kyprolis in the combination therapy trial: decreased lymphocytes, decreased absolute neutrophil count, decreased phosphorus, anemia, neutropenia, decreased total white blood cell count, decreased platelets, diarrhea, fatigue, thrombocytopenia, pyrexia, muscle spasm, cough, upper respiratory tract infection, decreased hemoglobin, hypokalemia.
Full U.S. prescribing information is available at www.kyprolis.com.
BLINCYTO U.S. Product Safety Information
Important Safety Information Regarding BLINCYTO® (blinatumomab) U.S. Indication
This safety information is specific to the current U.S. approved indication.
WARNING: CYTOKINE RELEASE SYNDROME and NEUROLOGICAL TOXICITIES
- Cytokine Release Syndrome (CRS), which may be life-threatening or fatal, occurred in patients receiving BLINCYTO®. Interrupt or discontinue BLINCYTO® as recommended.
- Neurological toxicities, which may be severe, life-threatening or fatal, occurred in patients receiving BLINCYTO®. Interrupt or discontinue BLINCYTO® as recommended.
BLINCYTO® is contraindicated in patients with a known hypersensitivity to blinatumomab or to any component of the product formulation.
Warnings and Precautions
Cytokine Release Syndrome (CRS): Life-threatening or fatal CRS occurred in patients receiving BLINCYTO®. Infusion reactions have occurred and may be clinically indistinguishable from manifestations of CRS. Closely monitor patients for signs and symptoms of serious events such as pyrexia, headache, nausea, asthenia, hypotension, increased alanine aminotransferase (ALT), increased aspartate aminotransferase (AST), increased total bilirubin (TBILI), disseminated intravascular coagulation (DIC), capillary leak syndrome (CLS), and hemophagocytic lymphohistiocytosis/macrophage activation syndrome (HLH/MAS). Interrupt or discontinue BLINCYTO® as outlined in the Prescribing Information (PI).
Neurological Toxicities: Approximately 50% of patients receiving BLINCYTO® in clinical trials experienced neurological toxicities. Severe, life-threatening, or fatal neurological toxicities occurred in approximately 15% of patients, including encephalopathy, convulsions, speech disorders, disturbances in consciousness, confusion and disorientation, and coordination and balance disorders. The median time to onset of any neurological toxicity was 7 days. Monitor patients for signs or symptoms and interrupt or discontinue BLINCYTO® as outlined in the PI.
Infections: Approximately 25% of patients receiving BLINCYTO® experienced serious infections, some of which were life-threatening or fatal. Administer prophylactic antibiotics and employ surveillance testing as appropriate during treatment. Monitor patients for signs or symptoms of infection and treat appropriately, including interruption or discontinuation of BLINCYTO® as needed.
Tumor Lysis Syndrome (TLS): Life-threatening or fatal TLS has been observed. Preventive measures, including pretreatment nontoxic cytoreduction and on treatment hydration, should be used during BLINCYTO® treatment. Monitor patients for signs and symptoms of TLS and interrupt or discontinue BLINCYTO® as needed to manage these events.
Neutropenia and Febrile Neutropenia, including life-threatening cases, have been observed. Monitor appropriate laboratory parameters during BLINCYTO® infusion and interrupt BLINCYTO® if prolonged neutropenia occurs.
Effects on Ability to Drive and Use Machines: Due to the possibility of neurological events, including seizures, patients receiving BLINCYTO® are at risk for loss of consciousness, and should be advised against driving and engaging in hazardous occupations or activities such as operating heavy or potentially dangerous machinery while BLINCYTO® is being administered.
Elevated Liver Enzymes: Transient elevations in liver enzymes have been associated with BLINCYTO® treatment. The majority of these events were observed in the setting of CRS. The median time to onset was 15 days. Grade 3 or greater elevations in liver enzymes occurred in 6% of patients outside the setting of CRS and resulted in treatment discontinuation in less than 1% of patients. Monitor ALT, AST, gamma-glutamyl transferase (GGT), and TBILI prior to the start of and during BLINCYTO® treatment. BLINCYTO® treatment should be interrupted if transaminases rise to > 5 times the upper limit of normal (ULN) or if TBILI rises to > 3 times ULN.
Leukoencephalopathy: Although the clinical significance is unknown, cranial magnetic resonance imaging (MRI) changes showing leukoencephalopathy have been observed in patients receiving BLINCYTO®, especially in patients previously treated with cranial irradiation and anti-leukemic chemotherapy. Preparation and administration errors have occurred with BLINCYTO® treatment. Follow instructions for preparation (including admixing) and administration in the PI strictly to minimize medication errors (including underdose and overdose).
The most commonly reported adverse reactions (≥ 20%) in clinical trials were pyrexia (62%), headache (36%), peripheral edema (25%), febrile neutropenia (25%), nausea (25%), hypokalemia (23%), rash (21%), tremor (20%), diarrhea (20%) and constipation (20%). Serious adverse reactions were reported in 65% of patients. The most common serious adverse reactions (≥ 2%) included febrile neutropenia, pyrexia, pneumonia, sepsis, neutropenia, device-related infection, tremor, encephalopathy, infection, overdose, confusion, Staphylococcal bacteremia, and headache.
U.S. Dosage and Administration Guidelines
BLINCYTO® is administered as a continuous intravenous infusion at a constant flow rate using an infusion pump which should be programmable, lockable, non-elastomeric, and have an alarm. It is very important that the instructions for preparation (including admixing) and administration provided in the full Prescribing Information are strictly followed to minimize medication errors (including underdose and overdose). Please see full U.S. Prescribing Information and medication guide for BLINCYTO at www.BLINCYTO.com.
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- GLOBCAN 2012, Global Prevalence and Incidence, available at http://globocan.iarc.fr/old/summary_table_pop_prev.asp?selection=224900&title=World&sex=0&window=1&sort=0&submit=%C2%A0Execute%C2%A0, accessed on March 9, 2015
- Palumbo A and Anderson K, Multiple myeloma, N Engl J Med, 2011;364:1046–60
- Stewart KA, Rajkumar VS, Dimopoulos MA, et al. Carfilzomib, Lenalidomide, and Dexamethasone for Relapsed Multiple Myeloma. N Engl J Med. 2015; 372:142-152.
- Katz AJ, et al. Acute lymphoblastic leukemia: an assessment of international incidence, survival, and disease burden. Cancer Causes Control. 2015;1-16. Retrieved from: http://link.springer.com/article/10.1007%2Fs10552-015-0657-6.
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