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Zoledronic acid Injection is indicated for the treatment of hypercalcemia of malignancy defined as an albumin-corrected calcium (cCa) of greater than or equal to 12 mg/dL [3.0 mmol/L] using the formula: cCa in mg/dL =Ca in mg/dL + 0.8 ( 4.0 g/dL – patient albumin [g/dL]).
Multiple Myeloma and Bone Metastases of Solid Tumors
Zoledronic acid Injection is indicated for the treatment of patients with multiple myeloma and patients with documented bone metastases from solid tumors, in conjunction with standard antineoplastic therapy. Prostate cancer should have progressed after treatment with at least one hormonal therapy.
Important Limitation of Use
The safety and efficacy of Zoledronic acid Injection in the treatment of hypercalcemia associated with hyperparathyroidism or with other nontumor-related conditions have not been established.
Dosage
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Hypercalcemia of Malignancy
The maximum recommended dose of Zoledronic acid Injection in hypercalcemia of malignancy (albumin-corrected serum calcium greater than or equal to 12 mg/dL [3.0 mmol/L]) is 4 mg. The 4-mg dose must be given as a single-dose intravenous infusion over no less than 15 minutes. Patients who receive Zoledronic acid Injection should have serum creatinine assessed prior to each treatment.
Dose adjustments of Zoledronic acid Injection are not necessary in treating patients for hypercalcemia of malignancy presenting with mild-to-moderate renal impairment prior to initiation of therapy (serum creatinine less than 400 mcmol/L or less than 4.5 mg/dL).
Patients should be adequately rehydrated prior to administration of Zoledronic acid Injection .
Consideration should be given to the severity of, as well as the symptoms of, tumor-induced hypercalcemia when considering use of Zoledronic acid Injection. Vigorous saline hydration, an integral part of hypercalcemia therapy, should be initiated promptly and an attempt should be made to restore the urine output to about 2 L/day throughout treatment. Mild or asymptomatic hypercalcemia may be treated with conservative measures (i.e., saline hydration, with or without loop diuretics). Patients should be hydrated adequately throughout the treatment, but overhydration, especially in those patients who have cardiac failure, must be avoided. Diuretic therapy should not be employed prior to correction of hypovolemia.
Retreatment with Zoledronic acid Injection 4 mg may be considered if serum calcium does not return to normal or remain normal after initial treatment. It is recommended that a minimum of 7 days elapse before retreatment, to allow for full response to the initial dose. Renal function must be carefully monitored in all patients receiving Zoledronic acid Injection and serum creatinine must be assessed prior to retreatment with Zoledronic acid Injection.
Multiple Myeloma and Metastatic Bone Lesions of Solid Tumors
The recommended dose of Zoledronic acid Injection in patients with multiple myeloma and metastatic bone lesions from solid tumors for patients with creatinine clearance (CrCl) greater than 60 mL/min is 4 mg infused over no less than 15 minutes every 3 to 4 weeks. The optimal duration of therapy is not known.
Upon treatment initiation, the recommended Zoledronic acid Injection doses for patients with reduced renal function (mild and moderate renal impairment) are listed in Table 1. These doses are calculated to achieve the same area under the curve (AUC) as that achieved in patients with creatinine clearance of 75 mL/min. CrCl is calculated using the Cockcroft-Gault formula .
This image is provided by the National Library of Medicine.
During treatment, serum creatinine should be measured before each Zoledronic acid Injection dose and treatment should be withheld for renal deterioration. In the clinical studies, renal deterioration was defined as follows:
For patients with normal baseline creatinine, increase of 0.5 mg/dL
For patients with abnormal baseline creatinine, increase of 1.0 mg/dL
In the clinical studies, Zoledronic acid Injection treatment was resumed only when the creatinine returned to within 10% of the baseline value. Zoledronic acid Injection should be reinitiated at the same dose as that prior to treatment interruption.
Patients should also be administered an oral calcium supplement of 500 mg and a multiple vitamin containing 400 international units of Vitamin D daily.
Preparation of Solution
Zoledronic acid Injection must not be mixed with calcium or other divalent cation-containing infusion solutions, such as Lactated Ringer’s solution, and should be administered as a single intravenous solution in a line separate from all other drugs.
4 mg / 5 mL Single-Use Vial
Vials of Zoledronic acid Injection concentrate for infusion contain overfill allowing for the withdrawal of 5 mL of concentrate (equivalent to 4 mg zoledronic acid). This concentrate should immediately be diluted in 100 mL of sterile 0.9% Sodium Chloride, USP, or 5% Dextrose Injection, USP, following proper aseptic technique, and administered to the patient by infusion. Do not store undiluted concentrate in a syringe, to avoid inadvertent injection.
To prepare reduced doses for patients with baseline CrCl less than or equal to 60 mL/min, withdraw the specified volume of the Zoledronic acid Injection concentrate from the vial for the dose required (see Table 2)
This image is provided by the National Library of Medicine.
Off-Label Use and Dosage (Adult)
Guideline-Supported Use
Condition1
Developed by:
Class of Recommendation:
Strength of Evidence:
Dosing Information
Dosage
Condition2
There is limited information regarding Off-Label Guideline-Supported Use of Zoledronic acid in adult patients.
Non–Guideline-Supported Use
Condition1
Dosing Information
Dosage
Condition2
There is limited information regarding Off-Label Non–Guideline-Supported Use of Zoledronic acid in adult patients.
Pediatric Indications and Dosage
FDA-Labeled Indications and Dosage (Pediatric)
Condition1
Dosing Information
Dosage
Condition2
There is limited information regarding FDA-Labeled Use of Zoledronic acid in pediatric patients.
Off-Label Use and Dosage (Pediatric)
Guideline-Supported Use
Condition1
Developed by:
Class of Recommendation:
Strength of Evidence:
Dosing Information
Dosage
Condition2
There is limited information regarding Off-Label Guideline-Supported Use of Zoledronic acid in pediatric patients.
Non–Guideline-Supported Use
Condition1
Dosing Information
Dosage
Condition2
There is limited information regarding Off-Label Non–Guideline-Supported Use of Zoledronic acid in pediatric patients.
Contraindications
Condition1
Warnings
Description
Precautions
Description
Adverse Reactions
Clinical Trials Experience
There is limited information regarding Clinical Trial Experience of Zoledronic acid in the drug label.
Body as a Whole
Cardiovascular
Digestive
Endocrine
Hematologic and Lymphatic
Metabolic and Nutritional
Musculoskeletal
Neurologic
Respiratory
Skin and Hypersensitivy Reactions
Special Senses
Urogenital
Miscellaneous
Postmarketing Experience
There is limited information regarding Postmarketing Experience of Zoledronic acid in the drug label.
