Approved Drug Label (PDF)
4
Contraindications
(additions
underlined)
Topotecan
Injection is contraindicated in patients who have a history of severe
hypersensitivity reactions to topotecan. Reactions have included
anaphylactoid reactions.
5
Warnings and Precautions
5.1 Myelosuppression
(subsection
revised, additions underlined)
Topotecan
can cause severe myelosuppression.
Single
Agent
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% of patients 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.
Combination
with Cisplatin
Grade
4 neutropenia occurred in 48% and Grade 4 thrombocytopenia occurred in 7% of
147 patients.
Grade 3 or 4 anemia occurred in 40% of patients.
…
Administer
the first cycle of Topotecan Injection only to patients with a baseline
neutrophil count of greater than or equal to 1,500/mm3 and a platelet count
greater than or equal to 100,000/mm3. Monitor blood counts frequently during
treatment. Withhold and reduce dose of Topotecan Injection based on neutrophil
counts, platelet counts and hemoglobin levels.
5.2 Interstitial Lung Disease
(addition
inderlined)
… Permanently discontinue
Topotecan Injection if ILD is confirmed.
5.4 Embryo-Fetal Toxicity
(additions
underlined)
…
Advise females of reproductive potential to use
effective contraception during treatment and for 6 months after the last dose
of Topotecan Injection. Advise males with a female partner of reproductive
potential to use effective contraception during treatment with Topotecan
Injection and for 3 months after the last dose.
6
Adverse Reactions
6.1 Clinical Trials Experience
(additions
and revisions, please refer to label for more information)
6.2 Postmarketing Experience
(additions
underlined)
…
Hypersensitivity:
allergic
manifestations, anaphylactoid reactions, angioedema
Gastrointestinal:
abdominal
pain potentially associated with neutropenic enterocolitis, gastrointestinal
perforation
…
General and
Administration Site Conditions: extravasation, mucosal inflammation
8
Use in Specific Populations
8.1 Pregnancy
(additions
underlined)
…
Data
Animal Data
In
rabbits, an intravenous dose of 0.10 mg/kg/day [about equal to the 1.5 mg/m2
clinical dose based on body surface area (BSA)] given on Days 6 through 20 of
gestation caused maternal toxicity, embryolethality and reduced fetal body
weight. In the rat, an intravenous dose of 0.23 mg/kg/day (about equal to the 1.5
mg/m2 clinical dose based on BSA) given for 14 days before mating through
gestation Day 6 caused fetal resorption, microphthalmia, pre-implant loss, and
mild maternal toxicity. Administration of an intravenous dose of 0.10 mg/kg/day
(about half the 1.5 mg/m2 clinical dose based on BSA) given to rats on
Days 6 through 17 of gestation caused an increase in post-implantation
mortality. This dose also caused an increase in total fetal malformations.
…
8.2 Lactation
(additions
underlined)
Risk
Summary
There
are no data on the presence of topotecan or its metabolites in human milk or
their effects on the breastfed infant or on milk production. Lactating rats
excrete high concentrations of topotecan in milk (see Data).
Because
of the potential for serious adverse reactions in breastfed infants, advise
women not to breastfeed during treatment with Topotecan Injection and for 1
week after the last dose.
Data
Animal Data
Following
intravenous administration of topotecan to lactating rats at a dose of 4.72 mg/m2
(about twice the 1.5 mg/m2 clinical dose based on BSA), topotecan was
excreted into milk at concentrations up to 48 fold higher than those in plasma.
8.3 Females and Males of Reproductive Potential
(additions
underlined)
Pregnancy
Testing
Verify
pregnancy status of females of reproductive potential prior to initiating
Topotecan Injection.
Contraception
Topotecan
Injection can cause fetal harm when administered to a pregnant woman.
Females
Advise
females of reproductive potential to use effective contraception during
treatment with Topotecan Injection and for 6 months after the last dose.
Males
Topotecan
may damage spermatozoa, resulting in possible genetic and fetal abnormalities.
Advise males with a female partner of reproductive potential to use effective
contraception during treatment with Topotecan Injection and for 3 months after the
last dose.
Infertility
Females
Topotecan
can have both acute and long-term effects on fertility.
Males
Effects
on spermatogenesis occurred in animals administered topotecan
8.6 Renal Impairment
(additions
underlined)
Reduce
the dose of Topotecan Injection in patients with a CLcr of 20 to 39
mL/min. No dosage adjustment is recommended for patients with CLcr
greater than or equal to 40 mL/min. Insufficient data are available in
patients with CLcr less than 20 mL/min to provide a dosage recommendation for
Topotecan Injection.
17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)
PATIENT COUNSELING INFORMATION
(additions
underlined)
…
Embryo-Fetal
Toxicity
Advise
females of reproductive potential and males with female partners of
reproductive potential of the potential risk to a fetus. Advise women to contact
their healthcare provider if they become pregnant, or if pregnancy is suspected
during treatment with Topotecan Injection .
Advise
females of reproductive potential to use effective contraception during
treatment and for 6 months after the last dose of Topotecan Injection .
Advise
males with a female partner of reproductive potential to use effective contraception
during treatment and for 3 months after the last dose of Topotecan Injection.
Lactation
Advise
women to discontinue breastfeeding during treatment and for 1 week after the
last dose of Topotecan Injection.
…
Approved Drug Label (PDF)
6
Adverse Reactions
6.1 Clinical Trials Experience
(additions
underlined)
Because
clinical trials are conducted under widely varying conditions, adverse reaction
rates observed in the clinical trials of a drug cannot be directly compared
with rates in the clinical trials of another drug and may not reflect the rates
observed in practice.
Ovarian
Cancer
Table
1 shows the Grade 3/4 hematologic and major non-hematologic adverse reactions
in the topotecan/paclitaxel comparator trial in ovarian cancer.
Table 1. Adverse Reactions
Experienced by ?5% of Ovarian Cancer Patients Randomized to Receive Topotecan
or Paclitaxel
(please
refer to label to view Table 1)
…
Hepatobiliary Disorders in Ovarian and Small
Cell Lung Cancer Patients Receiving Topotecan: Based on the combined experience of 453 patients
with metastatic ovarian carcinoma, and 426 patients with small cell lung
cancer treated with topotecan, Grade 1 transient elevations in hepatic enzymes
occurred in 8% of patients. Grade 3/4 elevations occurred in 4%. Grade 3/4
elevated bilirubin occurred in less than 2% of patients.
8
Use in Specific Populations
8.5 Geriatric Use
(additions
underlined)
Of
the 879 patients with metastatic ovarian cancer or small cell lung
cancer in clinical trials of topotecan, 32% (n = 281) were aged 65 years and
older, while 3.8% (n = 33) were aged 75 years and older. Of the 140 patients
with Stage IV-B, relapsed, or refractory cervical cancer in clinical trial of
topotecan who received topotecan plus cisplatin in the randomized clinical
trial, 6% (n = 9) were aged 65 years and older, while 3% (n = 4) were aged 75
years and older.
No
overall differences in effectiveness or safety were observed between these
patients and younger adult patients, and other reported clinical experience has
not identified differences in responses between the elderly and younger adult
patients.