FDA
Topotecan Hydrochloride
The FDA lists this product in 16 strengths and forms.
Indications
Topotecan Injection is indicated for the treatment of patients with small cell lung cancer (SCLC) with platinum-sensitive disease who progressed at least 60 days after initiation of first-line chemotherapy. Topotecan Injection is a topoisomerase inhibitor indicated for treatment of small cell lung cancer (SCLC) platinum-sensitive disease in patients who progressed at least 60 days after initiation of first-line chemotherapy.
( 1 )
Contraindications
Topotecan Injection is contraindicated in patients who have a history of severe hypersensitivity reactions to topotecan. Reactions have included anaphylactoid reactions [see Adverse Reactions (6.2) ] . History of severe hypersensitivity reactions to topotecan. ( 4 )
Warnings and precautions
Interstitial lung disease (ILD): Fatal cases have occurred. Permanently discontinue if ILD confirmed. ( 5.2 ) Extravasation and tissue injury : Severe cases have occurred. If extravasation occurs, immediately stop administration and institute recommended management procedures. ( 5.3 ) Embryo-fetal toxicity : Can cause fetal harm. Advise women of potential risk to the fetus. ( 5.4 , 8.1 , 8.3 )
5.1Myelosuppression
Topotecan can cause severe myelosuppression. Grade 4 neutropenia occurred in 78% of 879 patients, with a median duration of 7 days and was most common during Cycle 1 (58% of patients). Grade 4 neutropenia associated with infection occurred in 13% and febrile neutropenia occurred in 5%. Sepsis occurred in 4% and was fatal in 1%. Grade 4 thrombocytopenia occurred in 27%, with a median duration of 5 days. Grade 3 or 4 anemia occurred in 37% of patients.
Topotecan can cause fatal typhlitis (neutropenic enterocolitis). Consider the possibility of typhlitis in patients presenting with fever, neutropenia, and abdominal pain. Administer the first cycle of Topotecan Injection only to patients with a baseline neutrophil count of greater than or equal to 1,500/mm 3 and a platelet count greater than or equal to 100,000/mm 3 . Monitor blood counts frequently during treatment.



