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Cyclophosphamide

CYCLOPHOSPHAMIDE

Standard Dose

2 DOSAGE AND ADMINISTRATION During or immediately after Cyclophosphamide injection administration, administer adequate amounts of fluid to reduce the risk of urinary tract toxicity ( 2.1 ) Malignant Diseases: Adult and Pediatric Patients ( 2.1 ) Intravenous: Initial course for patients with no hematologic deficiency: 40 mg per kg to 50 mg per kg in divided doses over 2 to 5 days. Other regimens include 10 mg per kg to 15 mg per kg given every 7 to 10 days or 3 mg per kg to 5 mg per kg twice weekly. 2.1 Important Administrative Instructions During or immediately after the administration of Cyclophosphamide Injection, adequate amounts of fluid should be ingested or infused to force diuresis in order to reduce the risk of urinary tract toxicity. Therefore, Cyclophosphamide Injection should be administered in the morning. 2.2 Recommended Dosage for Malignant Diseases Adults and Pediatric Patients Intravenous Use When used as the only oncolytic drug therapy, the recommended dosage for the initial course of Cyclophosphamide Injection for patients with no hematologic deficiency is 40 mg per kg to 50 mg per kg given intravenously in divided doses over a period of 2 to 5 days. Other intravenous regimens include 10 mg per kg to 15 mg per kg given every 7 to 10 days or 3 mg per kg to 5 mg per kg twice weekly. Adjust the dosage of Cyclophosphamide Injection based on the specific regimen administered, response to treatment, myelosuppression or other adverse reactions, and patient risk factors [see Warnings and Precautions ( 5 )] . 2.3 Preparation, Handling, and Administration Cyclophosphamide Injection is a hazardous drug. Follow applicable special handling and disposal procedures 1 Caution should be exercised when handling and preparing Cyclophosphamide Injection. To minimize the risk of dermal exposure, always wear gloves when handling vials containing Cyclophosphamide Injection. Cyclophosphamide Injection Intravenous Administration Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Cyclophosphamide does not contain any antimicrobial preservative and thus care must be taken to assure the sterility of prepared solutions. Use aseptic technique. For Direct Intravenous Injection Aseptically withdraw the prescribed dose from the vial. Dilute the prescribed dose of Cyclophosphamide Injection to a concentration of 20 mg per mL by using any of the following diluents: 0.9% Sodium Chloride Injection, USP 0.45% Sodium Chloride Injection, USP 5% Dextrose Injection, USP 5% Dextrose and 0.9% Sodium Chloride Injection, USP For Intravenous Infusion Aseptically withdraw the prescribed dose from the vial. Dilute the prescribed dose of Cyclophosphamide Injection to a concentration of 2 mg per mL by using any of the following diluents: 0.9% Sodium Chloride Injection, USP 0.45% Sodium Chloride Injection, USP 5% Dextrose Injection, USP 5% Dextrose and 0.9% Sodium Chloride Injection, USP To reduce the likelihood of adverse reactions that appear to be administration rate-dependent (e.g., facial swelling, headache, nasal congestion, scalp burning), Cyclophosphamide Injection should be injected or infused very slowly. Duration of the infusion also should be appropriate for the volume and type of carrier fluid to be infused. Storage of Diluted Cyclophosphamide Solution: If not used immediately, for microbiological integrity, cyclophosphamide solutions should be stored as described in Table 1 : Table 1: Storage of Cyclophosphamide Solutions Diluent Storage Room Temperature Refrigerated Diluted solutions (20 mg/mL) 0.9% Sodium Chloride Injection, USP Up to 24 hours Up to 6 days 0.45% Sodium Chloride Injection, USP Up to 24 hours Up to 6 days 5% Dextrose Injection, USP Up to 24 hours Up to 6 days 5% Dextrose and 0.9% Sodium chloride Injection, USP Up to 24 hours Up to 6 days Diluted solutions (2 mg/mL) 0.9% Sodium Chloride Injection, USP Up to 24 hours Up to 6 days 0.45% Sodium Chloride Injection, USP Up to 24 hours Up to 6 days 5% Dextrose Injection, USP Up to 24 hours Up to 6 days 5% Dextrose and 0.9% Sodium chloride Injection, USP Up to 24 hours Up to 6 days Storage of Undiluted Cyclophosphamide Solution: After first use, store partially used multiple-dose vial in the original carton at 2°C to 8°C (36°F to 46°F) for up to 28 days. Discard unused portion after 28 days.

Max Dose

See official label

Primary Use

1 INDICATIONS AND USAGE Cyclophosphamide is an alkylating drug indicated for treatment of adults and pediatric patients with: Malignant Diseases: malignant lymphomas: Hodgkin's disease, lymphocytic lymphoma, mixed-cell type lymphoma, histiocytic lymphoma, Burkitt's lymphoma; multiple myeloma, leukemias, mycosis fungoides, neuroblastoma, adenocarcinoma of ovary, retinoblastoma, breast carcinoma.

Summary

Dosage and administration 2 DOSAGE AND ADMINISTRATION During or immediately after Cyclophosphamide injection administration, administer adequate amounts of fluid to reduce the risk of urinary tract toxicity ( 2.1 ) Malignant Diseases: Adult and Pediatric Patients ( 2.1 ) Intravenous: Initial course for patients with no hematologic deficiency: 40 mg per kg to 50 mg per kg in divided doses over 2 to 5 days.

Structured Monograph

Clinical summary

Indications and usage 1 INDICATIONS AND USAGE Cyclophosphamide is an alkylating drug indicated for treatment of adults and pediatric patients with: Malignant Diseases: malignant lymphomas: Hodgkin's disease, lymphocytic lymphoma, mixed-cell type lymphoma, histiocytic lymphoma, Burkitt's lymphoma; multiple myeloma, leukemias, mycosis fungoides, neuroblastoma, adenocarcinoma of ovary, retinoblastoma, breast carcinoma. ( 1.1 ) 1.1 Malignant Diseases Cyclophosphamide Injection is indicated for the treatment of adult and pediatric patients with: malignant lymphomas (Stages III and IV of the Ann Arbor staging system), Hodgkin's disease, lymphocytic lymphoma (nodular or diffuse), mixed-cell type lymphoma, histiocytic lymphoma, Burkitt's lymphoma multiple myeloma leukemias: chronic lymphocytic leukemia, chronic granulocytic leukemia (it is usually ineffective in acute blastic crisis), acute myelogenous and monocytic leukemia, acute lymphoblastic (stem-cell) leukemia (cyclophosphamide given during remission is effective in prolonging its duration) mycosis fungoides (advanced disease) neuroblastoma (disseminated disease) adenocarcinoma of the ovary retinoblastoma carcinoma of the breast Cyclophosphamide, although effective alone in susceptible malignancies, is more frequently used concurrently or sequentially with other antineoplastic drugs. Dosage and administration 2 DOSAGE AND ADMINISTRATION During or immediately after Cyclophosphamide injection administration, administer adequate amounts of fluid to reduce the risk of urinary tract toxicity ( 2.1 ) Malignant Diseases: Adult and Pediatric Patients ( 2.1 ) Intravenous: Initial course for patients with no hematologic deficiency: 40 mg per kg to 50 mg per kg in divided doses over 2 to 5 days. Other regimens include 10 mg per kg to 15 mg per kg given every 7 to 10 days or 3 mg per kg to 5 mg per kg twice weekly. 2.1 Important Administrative Instructions During or immediately after the administration of Cyclophosphamide Injection, adequate amounts of fluid should be ingested or infused to force diuresis in order to reduce the risk of urinary tract toxicity. Therefore, Cyclophosphamide Injection should be administered in the morning. 2.2 Recommended Dosage for Malignant Diseases Adults and Pediatric Patients Intravenous Use When used as the only oncolytic drug therapy, the recommended dosage for the initial course of Cyclophosphamide Injection for patients with no hematologic deficiency is 40 mg per kg to 50 mg per kg given intravenously in divided doses over a period of 2 to 5 days. Other intravenous regimens include 10 mg per kg to 15 mg per kg given every 7 to 10 days or 3 mg per kg to 5 mg per kg twice weekly. Adjust the dosage of Cyclophosphamide Injection based on the specific regimen administered, response to treatment, myelosuppression or other adverse reactions, and patient risk factors [see Warnings and Precautions ( 5 )] . 2.3 Preparation, Handling, and Administration Cyclophosphamide Injection is a hazardous drug. Follow applicable special handling and disposal procedures 1 Caution should be exercised when handling and preparing Cyclophosphamide Injection. To minimize the risk of dermal exposure, always wear gloves when handling vials containing Cyclophosphamide Injection. Cyclophosphamide Injection Intravenous Administration Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Cyclophosphamide does not contain any antimicrobial preservative and thus care must be taken to assure the sterility of prepared solutions. Use aseptic technique. For Direct Intravenous Injection Aseptically withdraw the prescribed dose from the vial. Dilute the prescribed dose of Cyclophosphamide Injection to a concentration of 20 mg per mL by using any of the following diluents: 0.9% Sodium Chloride Injection, USP 0.45% Sodium Chloride Injection, USP 5% Dextrose Injection, USP 5% Dextrose and 0.9% Sodium Chloride Injection, USP For Intravenous Infusion Aseptically withdraw the prescribed dose from the vial. Dilute the prescribed dose of Cyclophosphamide Injection to a concentration of 2 mg per mL by using any of the following diluents: 0.9% Sodium Chloride Injection, USP 0.45% Sodium Chloride Injection, USP 5% Dextrose Injection, USP 5% Dextrose and 0.9% Sodium Chloride Injection, USP To reduce the likelihood of adverse reactions that appear to be administration rate-dependent (e.g., facial swelling, headache, nasal congestion, scalp burning), Cyclophosphamide Injection should be injected or infused very slowly. Duration of the infusion also should be appropriate for the volume and type of carrier fluid to be infused. Storage of Diluted Cyclophosphamide Solution: If not used immediately, for microbiological integrity, cyclophosphamide solutions should be stored as described in Table 1 : Table 1: Storage of Cyclophosphamide Solutions Diluent Storage Room Temperature Refrigerate

Monitoring

• 5 WARNINGS AND PRECAUTIONS Myelosuppression, Immunosuppression, Bone Marrow Failure and Infections -Severe immunosuppression may lead to serious and sometimes fatal infections.
• Close hematological monitoring is required.
• ( 5.1 ) Urinary Tract and Renal Toxicity -Hemorrhagic cystitis, pyelitis, ureteritis, and hematuria can occur.
• Urotoxicity can be fatal.

Interaction Notes

• 7 DRUG INTERACTIONS 7.1 Effect of Other Drugs on Cyclophosphamide Exposure Protease inhibitors : Concomitant use of protease inhibitors may increase the concentration of cytotoxic metabolites and may enhance the toxicities of cyclophosphamide, including higher incidence of infections, neutropenia, and mucositis.
• Monitor for increased toxicities in patients receiving protease inhibitors.
• 7.2 Drugs That Potentiate Cyclophosphamide Toxicities Radiation therapy or drugs with similar toxicities to Cyclophosphamide Injection can potentiate toxicities for cyclophosphamide.
• Monitor for increased toxicities in patients receiving radiation therapy or drugs known to cause: Myelosuppression and/or immunosuppression [see Warnings and Precautions ( 5.1 )] Nephrotoxicity including hemorrhagic cystitis [see Warnings and Precautions ( 5.2 )] Cardiotoxicity [see Warnings and Precautions ( 5.3 )] Pulmonary toxicity [see Warnings and Precautions ( 5.4 )] Secondary malignancies [see Warnings and Precautions ( 5.5 )] Hepatotoxicity including liver necrosis and VOD [see Warnings and Precautions ( 5.6 )] 7.3 Effect of Cyclophosphamide on Other Drugs Metronidazole Acute encephalopathy has been reported in a patient receiving cyclophosphamide and metronidazole.