Warnings for Lysodren
Included as part of the "PRECAUTIONS" Section
Precautions for Lysodren
Adrenal Insufficiency And Adrenal Crisis
Adrenal Insufficiency
LYSODREN can cause adrenal insufficiency or worsen existing adrenal insufficiency in patients with adrenocortical carcinoma.
Monitor for both glucocorticoid and mineralocorticoid insufficiency and replace systemic corticosteroids accordingly. Due to increased steroid clearance and increase of steroidbinding protein, high-dose replacement therapy may be required and free cortisol and corticotropin (ACTH) should be monitored to adapt the systemic corticosteroids. Withhold, reduce the dose, or permanently discontinue LYSODREN based on severity [see DOSAGE AND ADMINISTRATION].
Adrenal Crisis In The Setting Of Shock, Severe Trauma Or Infection
LYSODREN can cause adrenal suppression and adrenal crisis in the setting of shock, severe trauma or infection.
Advise patients of the signs and symptoms of adrenal suppression and to contact their healthcare provider immediately if shock, trauma, infection, or adrenal suppression occurs. Withhold LYSODREN before planned surgeries.
Temporarily withhold LYSODREN during shock, trauma, infection or adrenal suppression [see DOSAGE AND ADMINISTRATION].
Provide supportive care and administer systemic corticosteroids until recovery.
Central Nervous System Toxicity
LYSODREN can cause central nervous system toxicity, including sedation, lethargy, and vertigo [see ADVERSE REACTIONS].
Monitor behavioral and neurologic assessments and mitotane plasma levels at regular intervals. Mitotane plasma levels exceeding 20 mg/L are associated with a greater incidence of toxicity.
In cases of cognitive dysfunction, thyroid function should be evaluated as mitotane may induce hypothyroidism.
LYSODREN can impair the ability to drive and operate machinery. Advise patients not to drive or operate hazardous machinery if they are experiencing CNS adverse reactions. Withhold, reduce the dose, or permanently discontinue LYSODREN based on severity [see DOSAGE AND ADMINISTRATION].
Ovarian Macrocysts In Premenopausal Women
LYSODREN can cause non-malignant, multiple and bilateral ovarian macrocysts in premenopausal women.
Ovarian macrocysts can be symptomatic (e.g., pelvic pain or discomfort, or menstrual irregularities) or asymptomatic.
Complications from these cysts, including adnexal torsion and hemorrhagic cyst rupture, have occurred.
Advise female patients to contact their healthcare provider immediately for gynecological symptoms such as vaginal bleeding and/or pelvic pain [see ADVERSE REACTIONS].
Monitor pelvic imaging in premenopausal females at baseline and in regular intervals during treatment with LYSODREN.
Withhold, reduce the dose, or permanently discontinue LYSODREN based on severity [see DOSAGE AND ADMINISTRATION].
Hepatotoxicity
LYSODREN can cause hepatoxicity, including liver injury or failure.
Monitor liver function tests prior to starting treatment with LYSODREN, during dose titration, and periodically during treatment as clinically indicated.
Isolated gamma-glutamyl transferase (GGT) elevation may occur.
Withhold, reduce the dose, or permanently discontinue LYSODREN based on severity of hepatoxicity [see DOSAGE AND ADMINISTRATION].
Hematologic Toxicity
LYSODREN can cause leukopenia, anemia and thrombocytopenia [see ADVERSE REACTIONS]. Monitor complete blood counts including neutrophil count prior to starting treatment with LYSODREN, during dose titration, and periodically during treatment as clinically indicated. Withhold, reduce the dose, or permanently discontinue LYSODREN based on severity of cytopenia [see DOSAGE AND ADMINISTRATION].
Prolonged Bleeding Time
LYSODREN can cause platelet function disorders due to abnormal adenosine diphosphate (ADP)-induced platelet aggregation. Some patients may have a prolonged bleeding time, while others may have a normal bleeding time.
Routine in vitro bleeding time is not suitable to detect this platelet defect and to assess bleeding risk.
Perform ADP-inducted platelet aggregometry testing prior to surgery or dental procedures to determine mitotane-induced bleeding risk. For patients with prolonged bleeding time, withhold or reduce the dose of LYSODREN as clinically indicated.
Hormone Binding Protein
Mitotane has been shown to increase plasma levels of hormone binding proteins (e.g., sex hormone-binding globulin (SHBG) and corticosteroid-binding globulin (CBG)). This should be taken into account when interpreting the results of hormonal assays and may result in gynecomastia.
Embryo-Fetal Toxicity
LYSODREN can cause fetal harm when administered to a pregnant woman. Abnormal pregnancy outcomes, such as preterm births and early pregnancy loss, can occur in patients exposed to mitotane during pregnancy. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective nonhormonal contraception, during treatment with LYSODREN and after discontinuation of treatment for as long as mitotane plasma levels are detectable, since LYSODREN can render some hormonal contraceptives ineffective [see DRUG INTERACTIONS, Use In Specific Populations].
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (Medication Guide).
Adrenal Insufficiency And Adrenal Crisis
- Advise patients of the risk of adrenal suppression that may require steroid treatment and interruption or discontinuation of LYSODREN [see WARNINGS AND PRECAUTIONS].
- Advise patients to discontinue LYSODREN in the case of shock, severe trauma or infection and contact their healthcare provider immediately [see WARNINGS AND PRECAUTIONS].
- Advise patients to inform their healthcare provider of any planned surgeries [see WARNINGS AND PRECAUTIONS].
Central Nervous System Toxicity
- Advise patients to contact their healthcare provider if they experience new or worsening symptoms of central nervous system (CNS) toxicity including sedation, lethargy and vertigo [see WARNINGS AND PRECAUTIONS].
- Instruct patients not to drive or operate hazardous machinery if they are experiencing CNS adverse reactions [see WARNINGS AND PRECAUTIONS].
Ovarian Macrocysts In Premenopausal Women
- Advise premenopausal women that their healthcare provider will monitor them with routine imaging and to contact their healthcare provider if they experience gynecological symptoms such as vaginal bleeding and/or pelvic pain [see WARNINGS AND PRECAUTIONS].
Hepatotoxicity
- Advise patients that their healthcare provider will monitor them with laboratory tests to monitor liver function and to immediately contact their healthcare provider to report signs and symptoms of hepatotoxicity [see WARNINGS AND PRECAUTIONS].
Hematologic Toxicity
- Advise patients to immediately contact their healthcare provider for fever, other signs of infection, unusual bruising, bleeding, tiredness or pallor [see WARNINGS AND PRECAUTIONS].
Prolonged Bleeding Time
- Advise patients of the possibility of prolonged bleeding time while taking LYSODREN and of the need to withhold LYSODREN if surgery or dental procedures are needed [see WARNINGS AND PRECAUTIONS].
- Advise patients to inform their healthcare provider of any planned surgeries or dental procedures [see WARNINGS AND PRECAUTIONS].
- Advise patients to contact their healthcare provider for bruising or bleeding [see WARNINGS AND PRECAUTIONS].
Embryo-Fetal Toxicity
- Advise females of reproductive potential of the potential risk to a fetus and to inform their healthcare provider of a known or suspected pregnancy [see WARNINGS AND PRECAUTIONS and Use In Specific Populations].
Females Of Reproductive Potential
- Advise females of reproductive potential to use effective nonhormonal contraception during treatment with LYSODREN and after discontinuation of treatment for as long as mitotane plasma levels are detectable, since LYSODREN can render some hormonal contraceptives ineffective [see DRUG INTERACTIONS, Use In Specific Populations].
Lactation
- Advise females not to breastfeed during treatment with LYSODREN [see Use In Specific Populations].
Drug Interactions
- Advise patients and their caregivers to inform their healthcare providers of all concomitant medications, herbal and dietary supplements [see DRUG INTERACTIONS].
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
The carcinogenicity and mutagenicity of mitotane are unknown. Fertility studies have not been conducted with mitotane.
Use In Specific Populations
Pregnancy
Risk Summary
LYSODREN can cause fetal harm. Limited postmarketing cases report preterm births and early pregnancy loss in women treated with LYSODREN during pregnancy. Animal reproduction studies have not been conducted with mitotane.
Advise pregnant women of the potential risk to a fetus.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Lactation
Risk Summary
Mitotane is excreted in human milk; however, the effect of LYSODREN on the breastfed child, or on milk production is unknown. Because of the potential for serious adverse reactions in a breastfed child, advise women not to breastfeed during treatment with LYSODREN and after discontinuation of treatment for as long as mitotane plasma levels are detectable.
Females And Males Of Reproductive Potential
Pregnancy Testing
Verify the pregnancy status of females of reproductive potential prior to initiating LYSODREN [see Pregnancy].
Contraception
LYSODREN can cause fetal harm when administered to a pregnant woman [see Pregnancy].
Females
Advise females of reproductive potential to use effective nonhormonal contraception during treatment with LYSODREN and after discontinuation of therapy for as long as mitotane plasma levels are detectable [see CLINICAL PHARMACOLOGY]. LYSODREN can render hormonal contraceptives ineffective [see DRUG INTERACTIONS].
Pediatric Use
Effectiveness in pediatric patients has not been established.
Based on published case reports, mitotane may negatively impact neuro-psychological development (e.g., motor and speech delay, memory impairment) in children and adolescents. In cases of cognitive dysfunction, thyroid function should be evaluated as mitotane may induce hypothyroidism. Other effects of mitotane observed in pediatric patients that are cited in medical literature or in a pharmacovigilance database include growth delay and estrogenic-like effects such as uterine bleeding, breast development in females and gynecomastia in males.
Geriatric Use
Clinical studies of LYSODREN did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently than younger patients. Other reported clinical experience has not identified differences in responses between the older and younger patients. In general, dose selection for an older patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
Hepatic Impairment
Mitotane is metabolized through the liver and mitotane plasma levels may increase if liver function is impaired.
Because of the increased risk of adverse reactions in patients with mild or moderate hepatic impairment, monitor mitotane plasma levels more frequently and modify the dosage as needed [see DOSAGE AND ADMINISTRATION]. LYSODREN is not recommended for use in patients with severe hepatic impairment [see WARNINGS AND PRECAUTIONS].
Renal Impairment
Mitotane is eliminated through the kidney and mitotane plasma levels may increase if renal function is impaired.
Because of the increased risk of adverse reactions in patients with mild and moderate renal impairment, monitor mitotane plasma levels more frequently and modify the dosage as needed [see DOSAGE AND ADMINISTRATION]. LYSODREN is not recommended for use in patients with severe renal impairment.