RALOXIFENE HYDROCHLORIDE — raloxifene hydrochloride tablet, coated
Cadila Pharmaceuticals Limited
WARNING: INCREASED RISK OF VENOUS THROMBOEMBOLISM AND DEATH FROM STROKE
- Increased risk of deep vein thrombosis and pulmonary embolism have been reported with raloxifene hydrochloride tablets [see Warnings and Precautions (5.1)]. Women with active or past history of venous thromboembolism should not take raloxifene hydrochloride tablets [see Contraindications (4.1)].
- Increased risk of death due to stroke occurred in a trial in postmenopausal women with documented coronary heart disease or at increased risk for major coronary events. Consider risk-benefit balance in women at risk for stroke [see Warnings and Precautions (5.2) and Clinical Studies (14.5)].
1 INDICATIONS & USAGE
Raloxifene hydrochloride is indicated for the reduction in risk of invasive breast cancer in postmenopausal women with osteoporosis [see Clinical Studies (14.3)].
1.3 Reduction in the Risk of Invasive Breast Cancer in Postmenopausal Women at High Risk of Invasive Breast Cancer
Raloxifene hydrochloride is indicated for the reduction in risk of invasive breast cancer in postmenopausal women at high risk of invasive breast cancer [see Clinical Studies (14.4)].
The effect in the reduction in the incidence of breast cancer was shown in a study of postmenopausal women at high risk for breast cancer with a 5-year planned duration with a median follow-up of 4.3 years [see Clinical Studies (14.4)]. Twenty-seven percent of the participants received drug for 5 years. The long-term effects and the recommended length of treatment are not known.
High risk of breast cancer is defined as at least one breast biopsy showing lobular carcinoma in situ (LCIS) or atypical hyperplasia, one or more first-degree relatives with breast cancer, or a 5-year predicted risk of breast cancer ≥1.66% (based on the modified Gail model). Among the factors included in the modified Gail model are the following: current age, number of first-degree relatives with breast cancer, number of breast biopsies, age at menarche, nulliparity or age of first live birth. Healthcare professionals can obtain a Gail Model Risk Assessment Tool by dialing 1-800-545-5979. Currently, no single clinical finding or test result can quantify risk of breast cancer with certainty.
After an assessment of the risk of developing breast cancer, the decision regarding therapy with raloxifene hydrochloride tablets should be based upon an individual assessment of the benefits and risks.
Raloxifene hydrochloride tablets does not eliminate the risk of breast cancer. Patients should have breast exams and mammograms before starting raloxifene hydrochloride tablets and should continue regular breast exams and mammograms in keeping with good medical practice after beginning treatment with raloxifene hydrochloride tablets.
Important Limitations of Use for Breast Cancer Risk Reduction
- There are no data available regarding the effect of raloxifene hydrochloride tablets on invasive breast cancer incidence in women with inherited mutations (BRCA1, BRCA2) to be able to make specific recommendations on the effectiveness of raloxifene hydrochloride tablets.
- Raloxifene hydrochloride tablets are not indicated for the treatment of invasive breast cancer or reduction of the risk of recurrence.
- Raloxifene hydrochloride tablets are not indicated for the reduction in the risk of noninvasive breast cancer.
The recommended dosage is one 60 mg raloxifene hydrochloride tablet daily, which may be administered any time of day without regard to meals [see Clinical Pharmacology (12.3)].
For the indications in risk of invasive breast cancer the optimum duration of treatment is not known [see Clinical Studies (14.3, 14.4)].
For either osteoporosis treatment or prevention, supplemental calcium and/or vitamin D should be added to the diet if daily intake is inadequate. Postmenopausal women require an average of 1,500 mg/day of elemental calcium. Total daily intake of calcium above 1,500 mg has not demonstrated additional bone benefits while daily intake above 2,000 mg has been associated with increased risk of adverse effects, including hypercalcemia and kidney stones. The recommended intake of vitamin D is 400 to 800 IU daily.
Patients at increased risk for vitamin D insufficiency (e.g., over the age of 70 years, nursing home bound, or chronically ill) may need additional vitamin D supplements. Patients with gastrointestinal malabsorption syndromes may require higher doses of vitamin D supplementation and measurement of 25-hydroxyvitamin D should be considered.
60 mg, white to off-white, oval shaped film coated tablet debossed with “C79” on one side and plain on the other side.
Raloxifene hydrochloride tablets are contraindicated in women with active or past history of venous thromboembolism (VTE), including deep vein thrombosis, pulmonary embolism, and retinal vein thrombosis [see Warnings and Precautions (5.1)].
Raloxifene hydrochloride tablets are contraindicated for use in pregnancy, as it may cause fetal harm [see Use in Specific Populations (8.1)].
In clinical trials, raloxifene hydrochloride tablets-treated women had an increased risk of venous thromboembolism (deep vein thrombosis and pulmonary embolism). Other venous thromboembolic events also could occur. A less serious event, superficial thrombophlebitis, also has been reported more frequently with raloxifene hydrochloride than with placebo. The greatest risk for deep vein thrombosis and pulmonary embolism occurs during the first 4 months of treatment, and the magnitude of risk appears to be similar to the reported risk associated with use of hormone therapy. Because immobilization increases the risk for venous thromboembolic events independent of therapy, raloxifene hydrochloride tablets should be discontinued at least 72 hours prior to and during prolonged immobilization (e.g., post-surgical recovery, prolonged bed rest), and raloxifene hydrochloride tablets therapy should be resumed only after the patient is fully ambulatory. In addition, women taking raloxifene hydrochloride tablets should be advised to move about periodically during prolonged travel. The risk-benefit balance should be considered in women at risk of thromboembolic disease for other reasons, such as congestive heart failure, superficial thrombophlebitis, and active malignancy [see Contraindications (4.1) and Adverse Reactions (6.1)].
In a clinical trial of postmenopausal women with documented coronary heart disease or at increased risk for coronary events, an increased risk of death due to stroke was observed after treatment with raloxifene hydrochloride tablets. During an average follow-up of 5.6 years, 59 (1.2%) raloxifene hydrochloride tablets-treated women died due to a stroke compared to 39 (0.8%) placebo-treated women (22 versus 15 per 10,000 women-years; hazard ratio 1.49; 95% confidence interval, 1.00 to 2.24; p=0.0499). There was no statistically significant difference between treatment groups in the incidence of stroke (249 in raloxifene hydrochloride tablets [4.9%] versus 224 placebo [4.4%]). Raloxifene hydrochloride tablets had no significant effect on all-cause mortality. The risk-benefit balance should be considered in women at risk for stroke, such as prior stroke or transient ischemic attack (TIA), atrial fibrillation, hypertension, or cigarette smoking [see Clinical Studies (14.5)].
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