SPRYCEL 20 mg film-coated tablets
SPRYCEL 50 mg film-coated tablets
SPRYCEL 80 mg film-coated tablets
SPRYCEL 100 mg film-coated tablets
SPRYCEL 140 mg film-coated tablets
SPRYCEL 20 mg film-coated tablets
Each film-coated tablet contains 20 mg dasatinib (as monohydrate).
Excipient with known effect
Each film-coated tablet contains 27 mg of lactose monohydrate.
SPRYCEL 50 mg film-coated tablets
Each film-coated tablet contains 50 mg dasatinib (as monohydrate).
Excipient with known effect
Each film-coated tablet contains 67.5 mg of lactose monohydrate.
SPRYCEL 80 mg film-coated tablets
Each film-coated tablet contains 80 mg dasatinib (as monohydrate).
Excipient with known effect
Each film-coated tablet contains 108 mg of lactose monohydrate.
SPRYCEL 100 mg film-coated tablets
Each film-coated tablet contains 100 mg dasatinib (as monohydrate).
Excipient with known effect
Each film-coated tablet contains 135.0 mg of lactose monohydrate.
SPRYCEL 140 mg film-coated tablets
Each film-coated tablet contains 140 mg dasatinib (as monohydrate).
Excipient with known effect
Each film-coated tablet contains 189 mg of lactose monohydrate.
For the full list of excipients, see section 6.1.
Film-coated tablet (tablet).
SPRYCEL 20 mg film-coated tablets
White to off-white, biconvex, round film-coated tablet with "BMS" debossed on one side and "527" on the other side.
SPRYCEL 50 mg film-coated tablets
White to off-white, biconvex, oval film-coated tablet with "BMS" debossed on one side and "528" on the other side.
SPRYCEL 80 mg film-coated tablets
White to off-white, biconvex, triangular film-coated tablet with "BMS 80" debossed on one side and "855" on the other side.
SPRYCEL 100 mg film-coated tablets
White to off-white, biconvex, oval film-coated tablet with "BMS 100" debossed on one side and "852" on the other side.
SPRYCEL 140 mg film-coated tablets
White to off-white, biconvex, round film-coated tablet with "BMS 140" debossed on one side and "857" on the other side.
SPRYCEL is indicated for the treatment of adult patients with:
• newly diagnosed Philadelphia chromosome positive (Ph+) chronic myelogenous leukaemia (CML) in the chronic phase.
• chronic, accelerated or blast phase CML with resistance or intolerance to prior therapy including imatinib mesilate.
• Ph+ acute lymphoblastic leukaemia (ALL) and lymphoid blast CML with resistance or intolerance to prior therapy.
Therapy should be initiated by a physician experienced in the diagnosis and treatment of patients with leukaemia.
Posology
The recommended starting dose for chronic phase CML is 100 mg dasatinib once daily.
The recommended starting dose for accelerated, myeloid or lymphoid blast phase (advanced phase) CML or Ph+ ALL is 140 mg once daily (see section 4.4).
Treatment duration
In clinical studies, treatment with SPRYCEL was continued until disease progression or until no longer tolerated by the patient. The effect of stopping treatment on long-term disease outcome after the achievement of a cytogenetic or molecular response [including complete cytogenetic response (CCyR), major molecular response (MMR) and MR4.5] has not been investigated.
To achieve the recommended dose, SPRYCEL is available as 20 mg, 50 mg, 70 mg, 80 mg, 100 mg and 140 mg film-coated tablets. Dose increase or reduction is recommended based on patient response and tolerability.
Dose escalation
In clinical studies in adult CML and Ph+ ALL patients, dose escalation to 140 mg once daily (chronic phase CML) or 180 mg once daily (advanced phase CML or Ph+ ALL) was allowed in patients who did not achieve a haematologic or cytogenetic response at the recommended starting dose.
Dose adjustment for adverse reactions
Myelosuppression
In clinical studies, myelosuppression was managed by dose interruption, dose reduction, or discontinuation of study therapy. Platelet transfusion and red cell transfusion were used as appropriate. Haematopoietic growth factor has been used in patients with resistant myelosuppression.
Guidelines for dose modifications are summarised in Table 1.
Table 1: Dose adjustments for neutropaenia and thrombocytopaenia
|
Chronic phase CML
(starting dose 100 mg once daily)
|
ANC < 0.5 x 109/l
and/or
platelets < 50 x 109/l
|
1 Stop treatment until ANC ≥ 1.0 x 109/l and platelets ≥ 50 x 109/l.
2 Resume treatment at the original starting dose.
3 If platelets < 25 x 109/l and/or recurrence of ANC < 0.5 x 109/l for > 7 days, repeat step 1 and resume treatment at a reduced dose of 80 mg once daily for second episode. For third episode, further reduce dose to 50 mg once daily (for newly diagnosed patients) or discontinue (for patients resistant or intolerant to prior therapy including imatinib).
|
Accelerated and blast phase CML and Ph+ ALL
(starting dose 140 mg once daily)
|
ANC < 0.5 x 109/l
and/or
platelets < 10 x 109/l
|
1 Check if cytopaenia is related to leukaemia (marrow aspirate or biopsy).
2 If cytopaenia is unrelated to leukaemia, stop treatment until ANC ≥ 1.0 x 109/l and platelets ≥ 20 x 109/l and resume at the original starting dose.
3 If recurrence of cytopaenia, repeat step 1 and resume treatment at a reduced dose of 100 mg once daily (second episode) or 80 mg once daily (third episode).
4 If cytopaenia is related to leukaemia, consider dose escalation to 180 mg once daily.
|
ANC: absolute neutrophil count
Non-haematological adverse reactions
If a moderate, grade 2, non-haematological adverse reaction develops with dasatinib, treatment should be interrupted until the adverse reaction has resolved or returned to baseline. The same dose should be resumed if this is the first occurrence and the dose should be reduced if this is a recurrent adverse reaction. If a severe grade 3 or 4, non-haematological adverse reaction develops with dasatinib, treatment must be withheld until the adverse reaction has resolved. Thereafter, treatment can be resumed as appropriate at a reduced dose depending on the initial severity of the adverse reaction. For patients with chronic phase CML who received 100 mg once daily, dose reduction to 80 mg once daily with further reduction from 80 mg once daily to 50 mg once daily, if needed, is recommended. For patients with advanced phase CML or Ph+ ALL who received 140 mg once daily, dose reduction to 100 mg once daily with further reduction from 100 mg once daily to 50 mg once daily, if needed, is recommended.
Pleural effusion
If a pleural effusion is diagnosed, dasatinib should be interrupted until patient is asymptomatic or has returned to baseline. If the episode does not improve within approximately one week, a course of diuretics or corticosteroids or both concurrently should be considered (see sections 4.4 and 4.8). Following resolution of the first episode, reintroduction of dasatinib at the same dose level should be considered. Following resolution of a subsequent episode, dasatinib at one dose level reduction should be reintroduced. Following resolution of a severe (grade 3 or 4) episode, treatment can be resumed as appropriate at a reduced dose depending on the initial severity of the adverse reaction.
Paediatric population
The safety and efficacy of SPRYCEL in children and adolescents below 18 years of age have not yet been established. No data are available (see section 5.1).
Elderly
No clinically relevant age-related pharmacokinetic differences have been observed in these patients. No specific dose recommendation is necessary in elderly.
Hepatic impairment
Patients with mild, moderate or severe hepatic impairment may receive the recommended starting dose. However, SPRYCEL should be used with caution in patients with hepatic impairment (see sections 4.4 and 5.2).
Renal impairment
No clinical studies were conducted with SPRYCEL in patients with decreased renal function (the study in patients with newly diagnosed chronic phase CML excluded patients with serum creatinine concentration > 3 times the upper limit of the normal range, and studies in patients with chronic phase CML with resistance or intolerance to prior imatinib therapy excluded patients with serum creatinine concentration > 1.5 times the upper limit of the normal range). Since the renal clearance of dasatinib and its metabolites is < 4%, a decrease in total body clearance is not expected in patients with renal insufficiency.
Method of administration
SPRYCEL must be administered orally.
The film-coated tablets must not be crushed or cut in order to minimize the risk of dermal exposure, they must be swallowed whole. They can be taken with or without a meal and should be taken consistently either in the morning or in the evening.
Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.
Clinically relevant interactions
Dasatinib is a substrate and an inhibitor of cytochrome P450 (CYP) 3A4. Therefore, there is a potential for interaction with other concomitantly administered medicinal products that are metabolized primarily by or modulate the activity of CYP3A4 (see section 4.5).
Concomitant use of dasatinib and medicinal products or substances that potently inhibit CYP3A4 (e.g. ketoconazole, itraconazole, erythromycin, clarithromycin, ritonavir, telithromycin, grapefruit juice) may increase exposure to dasatinib. Therefore, in patients receiving dasatinib, coadministration of a potent CYP3A4 inhibitor is not recommended (see section 4.5).
Concomitant use of dasatinib and medicinal products that induce CYP3A4 (e.g. dexamethasone, phenytoin, carbamazepine, rifampicin, phenobarbital or herbal preparations containing Hypericum perforatum, also known as St. John's Wort) may substantially reduce exposure to dasatinib, potentially increasing the risk of therapeutic failure. Therefore, in patients receiving dasatinib, coadministration of alternative medicinal products with less potential for CYP3A4 induction should be selected (see section 4.5).
Concomitant use of dasatinib and a CYP3A4 substrate may increase exposure to the CYP3A4 substrate. Therefore, caution is warranted when dasatinib is coadministered with CYP3A4 substrates of narrow therapeutic index, such as astemizole, terfenadine, cisapride, pimozide, quinidine, bepridil or ergot alkaloids (ergotamine, dihydroergotamine) (see section 4.5).
The concomitant use of dasatinib and a histamine-2 (H2) antagonist (e.g. famotidine), proton pump inhibitor (e.g. omeprazole), or aluminium hydroxide/magnesium hydroxide may reduce the exposure to dasatinib. Thus, H2 antagonists and proton pump inhibitors are not recommended and aluminium hydroxide/magnesium hydroxide products should be administered up to 2 hours prior to, or 2 hours following the administration of dasatinib (see section 4.5).
Special populations
Based on the findings from a single-dose pharmacokinetic study, patients with mild, moderate or severe hepatic impairment may receive the recommended starting dose (see sections 4.2 and 5.2). Due to the limitations of this clinical study, caution is recommended when administering dasatinib to patients with hepatic impairment (see section 4.2).
Important adverse reactions
Myelosuppression
Treatment with dasatinib is associated with anaemia, neutropaenia and thrombocytopaenia. Their occurrence is earlier and more frequent in patients with advanced phase CML or Ph+ ALL than in chronic phase CML. In patients with advanced phase CML or Ph+ ALL, complete blood counts should be performed weekly for the first 2 months, and then monthly thereafter, or as clinically indicated. In patients with chronic phase CML, complete blood counts should be performed every 2 weeks for 12 weeks, then every 3 months thereafter or as clinically indicated. Myelosuppression is generally reversible and usually managed by withholding dasatinib temporarily or by dose reduction (see sections 4.2 and 4.8).
Bleeding
In patients with chronic phase CML (n=548), 5 patients (1%) receiving dasatinib had grade 3 or 4 haemorrhage. In clinical studies in patients with advanced phase CML receiving the recommended dose of SPRYCEL (n=304), severe central nervous system (CNS) haemorrhage occurred in 1% of patients. One case was fatal and was associated with Common Toxicity Criteria (CTC) grade 4 thrombocytopaenia. Grade 3 or 4 gastrointestinal haemorrhage occurred in 6% of patients with advanced phase CML and generally required treatment interruptions and transfusions. Other grade 3 or 4 haemorrhage occurred in 2% of patients with advanced phase CML. Most bleeding related adverse reactions in these patients were typically associated with grade 3 or 4 thrombocytopaenia (see section 4.8). Additionally, in vitro and in vivo platelet assays suggest that SPRYCEL treatment reversibly affects platelet activation.
Caution should be exercised if patients are required to take medicinal products that inhibit platelet function or anticoagulants.
Fluid retention
Dasatinib is associated with fluid retention. In the Phase III clinical study in patients with newly diagnosed chronic phase CML, grade 3 or 4 fluid retention was reported in 13 patients (5%) in the dasatinib-treatment group and in 2 patients (1%) in the imatinib-treatment group after a minimum of 60 months follow-up (see section 4.8). In all SPRYCEL treated patients with chronic phase CML, severe fluid retention occurred in 32 patients (6%) receiving SPRYCEL at the recommended dose (n=548). In clinical studies in patients with advanced phase CML receiving SPRYCEL at the recommended dose (n=304), grade 3 or 4 fluid retention was reported in 8% of patients, including grade 3 or 4 pleural and pericardial effusion reported in 7% and 1% of patients, respectively. In these patients grade 3 or 4 pulmonary oedema and pulmonary hypertension were each reported in 1% of patients.
Patients who develop symptoms suggestive of pleural effusion such as dyspnoea or dry cough should be eva luated by chest X-ray. Grade 3 or 4 pleural effusion may require thoracocentesis and oxygen therapy. Fluid retention adverse reactions were typically managed by supportive care measures that include diuretics and short courses of steroids (see sections 4.2 and 4.8). Patients aged 65 years and older are more likely than younger patients to experience pleural effusion, dyspnoea, cough, pericardial effusion and congestive heart failure, and should be monitored closely.
Pulmonary arterial hypertension (PAH)
PAH (pre-capillary pulmonary arterial hypertension confirmed by right heart catheterization) has been reported in association with dasatinib treatment (see section 4.8). In these cases, PAH was reported after initiation of dasatinib therapy, including after more than one year of treatment.
Patients should be eva luated for signs and symptoms of underlying cardiopulmonary disease prior to initiating dasatinib therapy. An echocardiography should be performed at treatment initiation in every patient presenting symptoms of cardiac disease and considered in patients with risk factors for cardiac or pulmonary disease. Patients who develop dyspnoea and fatigue after initiation of therapy should be eva luated for common etiologies including pleural effusion, pulmonary oedema, anaemia, or lung infiltration. In accordance with recommendations for management of non-haematologic adverse reactions (see section 4.2) the dose of dasatinib should be reduced or therapy interrupted during this eva luation. If no explanation is found, or if there is no improvement with dose reduction or interruption, the diagnosis of PAH should be considered. The diagnostic approach should follow standard practice guidelines. If PAH is confirmed, dasatinib should be permanently discontinued. Follow up should be performed according to standard practice guidelines. Improvements in haemodynamic and clinical parameters have been observed in dasatinib-treated patients with PAH following cessation of dasatinib therapy.
QT Prolongation
In vitro data suggest that dasatinib has the potential to prolong cardiac ventricular repolarisation (QT Interval) (see section 5.3). In 258 dasatinib-treated patients and 258 imatinib-treated patients with a minimum of 60 months follow-up in the Phase III study in newly diagnosed chronic phase CML, 1 patient (< 1%) in each group had QTc prolongation reported as an adverse reaction. The median changes in QTcF from baseline were 3.0 msec in dasatinib-treated patients compared to 8.2 msec in imatinib-treated patients. One patient (< 1%) in each group experienced a QTcF > 500 msec. In 865 patients with leukaemia treated with dasatinib in Phase II clinical studies, the mean changes from baseline in QTc interval using Fridericia's method (QTcF) were 4 - 6 msec; the upper 95% confidence intervals for all mean changes from baseline were < 7 msec (see section 4.8).
Of the 2,182 patients with resistance or intolerance to prior imatinib therapy who received dasatinib in clinical studies, 15 (1%) had QTc prolongation reported as an adverse reaction. Twenty-one of these patients (1%) experienced a QTcF > 500 msec.
Dasatinib should be administered with caution to patients who have or may develop prolongation of QTc. These include patients with hypokalaemia or hypomagnesaemia, patients with congenital long QT syndrome, patients taking anti-arrhythmic medicinal products or other medicinal products which lead to QT prolongation, and cumulative high dose anthracycline therapy. Hypokalaemia or hypomagnesaemia should be corrected prior to dasatinib administration.
Cardiac adverse reactions
Dasatinib was studied in a randomised clinical study of 519 patients with newly diagnosed CML in chronic phase which included patients with prior cardiac disease. The cardiac adverse reactions of congestive heart failure/cardiac dysfunction, pericardial effusion, arrhythmias, palpitations, QT prolongation and myocardial infarction (including fatal) were reported in patients taking dasatinib. Cardiac adverse reactions were more frequent in patients with risk factors or a history of cardiac disease. Patients with risk factors (e.g. hypertension, hyperlipidaemia, diabetes) or a history of cardiac disease (e.g. prior percutaneous coronary intervention, documented coronary artery disease) should be monitored carefully for clinical signs or symptoms consistent with cardiac dysfunction such as chest pain, shortness of breath, and diaphoresis.
If these clinical signs or symptoms develop, physicians are advised to interrupt dasatinib administration. After resolution, a functional assessment should be performed prior to resuming treatment with dasatinib. Dasatinib may be resumed at the original dose for mild/moderate adverse reactions (≤ grade 2) and resumed at a dose level reduction for severe adverse reactions (≥ grade 3) (see section 4.2). Patients continuing treatment should be monitored periodically.
Patients with uncontrolled or significant cardiovascular disease were not included in the clinical studies.
Hepatitis B reactivation
Reactivation of hepatitis B in patients who are chronic carriers of this virus has occurred after these patients received BCR-ABL tyrosine kinase inhibitors. Some cases resulted in acute hepatic failure or fulminant hepatitis leading to liver transplantation or a fatal outcome.
Patients should be tested for HBV infection before initiating treatment with SPRYCEL. Experts in liver disease and in the treatment of hepatitis B should be consulted before treatment is initiated in patients with positive hepatitis B serology (including those with active disease) and for patients who test positive for HBV infection during treatment. Carriers of HBV who require treatment with SPRYCEL should be closely monitored for signs and symptoms of active HBV infection throughout therapy and for several months following termination of therapy (see section 4.8).
Lactose
This medicinal product contains 135 mg of lactose monohydrate in a 100 mg daily dose and 189 mg of lactose monohydrate in a 140 mg daily dose. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicinal product.
Active substances that may increase dasatinib plasma concentrations
In vitro studies indicate that dasatinib is a CYP3A4 substrate. Concomitant use of dasatinib and medicinal products or substances which potently inhibit CYP3A4 (e.g. ketoconazole, itraconazole, erythromycin, clarithromycin, ritonavir, telithromycin, grapefruit juice) may increase exposure to dasatinib. Therefore, in patients receiving dasatinib, systemic administration of a potent CYP3A4 inhibitor is not recommended.
At clinically relevant concentrations, binding of dasatinib to plasma proteins is approximately 96% on the basis of in vitro experiments. No studies have been performed to eva luate dasatinib interaction with other protein-bound medicinal products. The potential for displacement and its clinical relevance are unknown.
Active substances that may decrease dasatinib plasma concentrations
When dasatinib was administered following 8 daily evening administrations of 600 mg rifampicin, a potent CYP3A4 inducer, the AUC of dasatinib was decreased by 82%. Other medicinal products that induce CYP3A4 activity (e.g. dexamethazone, phenytoin, carbamazepine, phenobarbital or herbal preparations containing Hypericum perforatum, also known as St. John´s Wort) may also increase metabolism and decrease dasatinib plasma concentrations. Therefore, concomitant use of potent CYP3A4 inducers with dasatinib is not recommended. In patients in whom rifampicin or other CYP3A4 inducers are indicated, alternative medicinal products with less enzyme induction potential should be used.
Histamine-2 antagonists and proton pump inhibitors
Long-term suppression of gastric acid secretion by H2 antagonists or proton pump inhibitors (e.g. famotidine and omeprazole) is likely to reduce dasatinib exposure. In a single-dose study in healthy subjects, the administration of famotidine 10 hours prior to a single dose of SPRYCEL reduced dasatinib exposure by 61%. In a study of 14 healthy subjects, administration of a single 100-mg dose of SPRYCEL 22 hours following a 4-day, 40-mg omeprazole dose at steady state reduced the AUC of dasatinib by 43% and the Cmax of dasatinib by 42%. The use of antacids should be considered in place of H2 antagonists or proton pump inhibitors in patients receiving SPRYCEL therapy (see section 4.4).
Antacids
Non-clinical data demonstrate that the solubility of dasatinib is pH-dependent. In healthy subjects, the concomitant use of aluminium hydroxide/magnesium hydroxide antacids with SPRYCEL reduced the AUC of a single dose of SPRYCEL by 55% and the Cmax by 58%. However, when antacids