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4.2. Posology and method of administration
FOR INTRAVENOUS USE ONLY AFTER APPROPRIATE DILUTION.
Strictly intravenous administration after appropriate dilution
The use of i Intra-thecal route is contra-indicated administration of Navelbine may be fatal: see section 4.4
NavelbineAVELBINE must only be administered by the intravenous route as an
infusion over 6 5 – 10 minutes.
Instructions for use and handling: see section 6.6.
Administration
- It is recommended to infuse NavelbineAVELBINEover 6 5 to 10 minutes after dilution in a 50 ml infusion bag with sodium chloride 9 mg/ml (0.9%) solution for injection or in 5% glucose solution for injection.
- The infusion time of 6 5 to 10 minutes must be followed as the risk of venous irritation is increased if the infusion exposure time is increased.
In adults:
NAVELBINE is usually given at 25-30mg/m² weekly.
Administration in patients with liver insufficiency
For patients presenting with severe liver impairment (bilirubin > 2xUNL and/or transaminases > 5xUNL), it is suggested that the dose be reduced by 33% and the haematological parameters closely monitored since the maximum dose which was evaluated in this subset of patients was 20 mg/m² : see sections: 4.4; : 5.2.
The pharmacokinetics of Navelbine is not modified in patients presenting with moderate or severe liver impairment. Nevertheless as a precautionary measure a reduced dose of 20mg/m2 and close monitoring of haematological parameters is recommended in patients with severe liver impairment: see sections: 4.4; 5.2.
4.3. Contraindications
- Platelet count < 100000 75000/mm3
4.4. Special warnings and precautions for use
Special warnings
Navelbine must only be administered by the intravenous route as an infusion over 5 – 10 minutes.
The use of intra-thecal route is contra-indicated administration of Navelbine may be fatal.
Navelbine should be administered under the supervision of a physician experienced in the use of chemotherapy.
The risk of venous irritation is increased if the infusion exposure time exceeds the recommendedation time of 5 to 10 minutes.
The dose limiting adverse reaction is mainly neutropenia. This effect is non-cumulative, having its nadir between 7 and 14 days after the administration and is rapidly reversible within 5 to 7 days. If the neutrophil count is below 1500/mm3and/or the platelet count is below 100000 75,000/mm3, then the treatment should be delayed until recovery.
Mitomycin C: risk of bronchospam and dyspnoea are increased, in rare case an interstitial pneumonitis was observed . as with all vinca-alkaloids, increased risk of pulmonary toxicity. Caution is advised when using vinorelbine and mitomycin C simultaneously.
Ciclosporin, tacrolimus: excessive immunodepression with risk of lymphoproliferation.
As vinca alkaloids are known substrates for P_glycoprotein, and in the absence of specific study, caution should be exercised when combining Navelbine with strong modulators of this membrane transporter.
4.6. Fertility, pregnancy and lactation
Lactation:
It is unknown whether Navelbine is excreted in human breast milk. The excretion of Navelbine in milk has not been studied in animal studies.
A risk to the suckling child can not be excluded therefore breast feeding must be discontinued before starting treatment with Navelbine: see section 4.3.
Fertility:
Men being treated with Navelbine are advised not to father a child during and minimally up to 3 months after treatment: see section 4.3. Prior to treatment advice should be sought for conserving sperm due to the chance of irreversible infertility as a consequence of treatment with vinorelbine.
4.8. Undesirable effects
Detailed Adverse reactions information:
Reactions were described using the W.H.O classification (grade 1=G1; grade 2=G2; grade 3=G3; grade 4=G4; grade 1-4=G1-4; grade 1-2=G1-2; grade 3-4=G3-4).
Infections and infestations
Common: Infection bacterial, viral or fungal at different sites mild to moderate and usually reversible with an appropriate treatment.
Uncommon: Septicaemia [very rarely fatal].
Not known: Neutropenic sepsis, sometimes fatal
Blood and lymphatic system disorders:
Very Common: Bone marrow depression resulting mainly in neutropenia (G3: 24.3%;
G4: 27.8%) reversible within 5 to 7 days and noncumulative over time.
Leucopenia
Anaemia (G3-4: 7.4%)
Common : Thrombocytopenia (G3-4: 2.5%) may occur but are seldom severe.
Nervous system disorders
Very Common: Neurologic disorders (G 3-4: 2.7%) including loss of deep tendon reflexes.
Weakness of the lower extremities has been reported after a prolonged
chemotherapy.
Uncommon: Severe paresthesias with sensory and motor symptoms are infrequent.
. These effects are generally reversible. upon discontinuation of treatment.
Respiratory system, thoracic and mediastinal disorders
Uncommon: Dyspnoea and bronchospasm may occur in association with Navelbine
treatment as with other vinca alkaloids.
Rare: Interstitial pneumonopathy ies has have been reported in particular in
patients treated with Navelbine in combination with mitomycin.
Gastrointestinal disorders
Very Common: Stomatitis (G1-4: 15%, with Navelbine as single agent)
Nausea and vomiting (G 1-2: 30.4% and G 3-4: 2.2%). Anti-emetic therapy
may reduce their occurence
Constipation is the main symptom (G 3-4: 2.7) which rarely progresses to
paralytic ileus with Navelbine as single agent and (G3-4: 4.1%), with the
combination of Navelbine and other chemotherapeutic agents.
Common: Diarrhoea usually mild to moderate may occur.
.
Rare: Paralytic ileus, treatment may be resumed after recovery of normal bowel
mobility.
Pancreatitis has been reported
Hepatobiliary disorders
Very common Transient elevations of liver function tests (G1-2) without clinical symptoms
were reported (SGOT in 27.6% and SGPT in 29.3%).
Skin and subcutaneous tissue disorders
Very common: Alopecia, usually mild in nature, may occur (G3-4: 4.1% with Navelbine
as single chemotherapeutic agent).
Rare: Generalized cutaneous reactions have been reported with Navelbine.
Not known: - Erythema on hands and feet
General disorders and administration site conditions
Very common: Reactions at the injection site may include erythema, burning pain,
vein discoloration and local phlebitis (G 3-4: 3.7% with Navelbine as single
chemotherapeutic agent).
Common: Asthenia, fatigue, fever, pain at different sites including chest pain and pain
at the tumour site.
4.9 Overdose
5.2. Pharmacokinetic properties
Liver impairment
A first study has reported the effects of liver impairment on vinorelbine pharmacokinetics. This study was performed in patients with liver metastases due to breast cancer, and concluded that a change in mean clearance of vinorelbine was only observed when more than 75% of the liver is involved.
A phase I pharmacokinetic dose-adjusted study was conducted in cancer patients with liver dysfunction: 6 patients with moderate dysfunction (Bilirubin < 2 x UNL and Transaminases < 5 x UNL) treated up to 25 mg/m² and 8 patients with severe dysfunction (Bilirubin > 2 x UNL and/or Transaminases > 5 x UNL) treated up to 20 mg/m². Mean total clearance in these two subsets of patients was similar to that in patients with normal hepatic function. Therefore, the pharmacokinetics of vinorelbine is not modified in patients presenting moderate or severe liver impairment. Nevertheless, as a precautionary measure a reduced dose of 20mg/m2 and close monitoring of haematological parameters is recommended in patient with severe liver impairment: see sections 4.2 and 4.4. in a conservative approach it is suggested that the dose be reduced by 33% and the haematological parameters closely monitored in patient with severe liver impairment since the maximum dose which was given in this subset of patients was 20 mg/m2.
5.3. Preclinical Safety Data
Mutagenic and carcinogenic potential
The interaction of NAVELBINE with the spindle apparatus during mitosis can cause an incorrect distribution of chromosomes. In animal studies NAVELBINE induced aneuploidy and polyploidy. It is therefore to be assumed that NAVELBINE can also cause mutagenic effects (induction of aneuploidy) in man.
The carcinogenicity studies, in which NAVELBINE was administered only once every two weeks in order to avoid the toxic effects of the drug, are negative.
Reproductive toxicity
In animal reproductive studies NAVELBINE was embryo- and feto-lethal and teratogenic.
The NOEL in the rat was 0.26 mg/kg every 3 days.
Following peri/postnatal administration in the rat at doses of 1.0 mg/kg every 3 days i.v., retarded weight gain was found in the offspring up to the 7th week of life.
Safety pharmacology
Bibliographic review concerning the tolerance of vinca alkaloids on the cardiovascular system shows the occurence of some cardiac events (such as angina, myocardial infarction), but the incidence of these is low.
Haemodynamic and electrocardiographic studies on animals have been carried out by Pierre Fabre Médicament Laboratories; no haemodynamic effects have been found using a maximal tolerated dose in dogs, however only some non significant disturbances of repolarization were found for all vinca alkaloids tested. No effect on the cardiovascular system has been detected using repeated doses (study 39 weeks) of NAVELBINE on primates.
Vinorelbine induced chromosome damages but was not mutagenic in Ames test.
It is assumed that vinorelbine can cause mutagenic effects (induction aneuploidy and polyploidy) in humans..
In animal reproductive studies, vinorelbine was embryo-foeto-lethal and teratogenic.
No haemodynamic effects were found in dogs receiving vinorelbine at maximal tolerated dose; only some minor, non significant disturbances of repolarisation were observed as with other vinca alkaloids tested. No effect on the cardiovascular system was observed in primates receiving repeated doses of vinorelbine over 39 weeks.
6.6. Instructions for Use, Handling and Disposal
For single use only, discard any unused contents
The intra-thecal route is contraindicated: see sections 4.2 and 4.4
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