Monograph Details

Neoplasms > Cytotoxic antibiotics
COSMEGEN
Manufacturer
Merck & Co., Inc.
Legal Classification
Rx
Pharmacological Class
Actinomycin antibiotic.
Generic Name
Dactinomycin 500micrograms/vial; lyophilized pwd for IV inj or regional perfusion after reconstitution; contains mannitol; preservative-free.
Indications
In combination with other chemotherapy and/or multi-modality treatment regimen for Wilms' tumor, childhood rhabdomyosarcoma, Ewing's sarcoma and metastatic, nonseminomatous testicular cancer. Gestational trophoblastic neoplasia. As a component of regional perfusion, for palliative and/or adjunctive treatment of locally recurrent or locoregional solid malignancies.
Children
See literature.
Adults
Give by IV infusion. Wilms' tumor, childhood rhabdomyosarcoma, Ewing's sarcoma: 15micrograms/kg daily for 5 days. Metastatic nonseminomatous testicular cancer (in combination with cyclophosphamide, bleomycin, vinblastine, and cisplatin): 1000micrograms/m2 on Day 1. Gestational trophoblastic neoplasia: 12micrograms/kg daily for 5 days as a single agent; 500micrograms on Days 1 and 2 as combination regimen with etoposide, methotrexate, folinic acid, vincristine, cyclophosphamide, and cisplatin. Regional perfusion: 50micrograms/kg for lower extremity or pelvis; 35micrograms/kg for upper extremity. Max 15micrograms/kg/day per 2-week cycle or 400–600micrograms/m2/day for five days. Use surface area to calculate dose for obese or edematous patients.
Contraindications
Current or recent chickenpox or herpes zoster.
Precautions
Myelosuppression; monitor bone marrow and hold treatment if platelets or WBCs decrease markedly. Extremely corrosive; avoid extravasation. Avoid skin, mucous membranes, eyes. Previous irradiation (esp. within 2 months of irradiation for treatment of right-sided Wilms' tumor), cytotoxic chemotherapy. Monitor renal and hepatic function. Obese. Elderly. Pregnancy (Cat.D); avoid use. Nursing mothers: not recommended.
Interactions
Avoid live vaccines. Concomitant radiotherapy in Wilms' tumor: not recommended.
Adverse Reactions
GI upset, stomatitis, bone marrow suppression (neutropenia, thrombocytopenia), liver toxicity, infusion site reactions, malaise, fatigue, alopecia, possible second primary tumors (including leukemia); for perfusion therapy: infection, impaired wound healing, superficial ulceration of gastric mucosa, edema, soft tissue damage, possible venous thrombosis.
How Supplied
Vials—1
Additional Resources
Related Prescribing Note