Mifepristone

⛔ FDA Black Box Warning

WARNING: SERIOUS AND SOMETIMES FATAL INFECTIONS OR BLEEDING Serious and sometimes fatal infections and bleeding occur very rarely following spontaneous, surgical, and medical abortions, including following Mifepristone tablets, 200 mg use. No causal relationship between the use of Mifepristone tablets, 200 mg and misoprostol and these events has been established. Atypical Presentation of Infection. Patients with serious bacterial infections (e.g., Clostridium sordellii ) and sepsis can present without fever, bacteremia, or significant findings on pelvic examination following an abortion. Very rarely, deaths have been reported in patients who presented without fever, with or without abdominal pain, but with leukocytosis with a marked left shift, tachycardia, hemoconcentration, and general malaise. A high index of suspicion is needed to rule out serious infection and sepsis [see Warnings and Precautions ( 5.1 )] Bleeding. Prolonged heavy bleeding may be a sign of incomplete abortion or other complications and prompt medical or surgical intervention may be needed. Advise patients to seek immediate medical attention if they experience prolonged heavy vaginal bleeding [see Warnings and Precautions ( 5.2 )]. Because of the risks of serious complications described above, Mifepristone tablets, 200mg is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the Mifepristone REMS Program [see Warnings and Precautions ( 5.3 )]. Before prescribing Mifepristone, inform the patient about the risk of these serious events. Ensure that the patient knows whom to call and what to do, including going to an Emergency Room if none of the provided contacts are reachable, if they experience sustained fever, severe abdominal pain, prolonged heavy bleeding, or syncope, or if they experience abdominal pain or discomfort, or general malaise (including weakness, nausea, vomiting or diarrhea) for more than 24 hours after taking misoprostol. WARN

Contraindications

4 CONTRAINDICATIONS Administration of Mifepristone tablets, 200 mg and misoprostol for the termination of pregnancy (the “treatment procedure”) is contraindicated in patients with any of the following conditions: Confirmed or suspected ectopic pregnancy or undiagnosed adnexal mass (the treatment procedure will not be effective to terminate an ectopic pregnancy) [ see Warnings and Precautions ( 5.4 )] Chronic adrenal failure (risk of acute adrenal insufficiency) Concurrent long-term corticosteroid therapy (risk of acute adrenal insufficiency) History of allergy to mifepristone, misoprostol, or other prostaglandins (allergic reactions including anaphylaxis, angioedema, rash, hives, and itching have been reported [ see Adverse Reactions ( 6.2 )]) Hemorrhagic disorders or concurrent anticoagulant therapy (risk of heavy bleeding) Inherited porphyrias (risk of worsening or of precipitation of attacks) Use of Mifepristone tablets, 200 mg and misoprostol for termination of intrauterine pregnancy is contraindicated in patients with an intrauterine device (“IUD”) in place (the IUD might interfere with pregnancy termination). If the IUD is removed, Mifepristone tablets, 200 mg may be used. Confirmed/suspected ectopic pregnancy or undiagnosed adnexal mass ( 4 ) Chronic adrenal failure ( 4 ) Concurrent long-term corticosteroid therapy ( 4 ) History of allergy to mifepristone, misoprostol, or other prostaglandins ( 4 ) Hemorrhagic disorders or concurrent anticoagulant therapy ( 4 ) Inherited porphyria ( 4 ) Intrauterine device (IUD) in place ( 4 )

Pregnancy & Breastfeeding

8.1 Pregnancy Risk Summary Mifepristone is contraindicated in pregnancy because the use of mifepristone results in pregnancy loss. There are no data that assess the risk of birth defects in women exposed to mifepristone during pregnancy. Available data limited to exposure following a single dose of mifepristone during pregnancy showed a higher rate of major birth defects compared to the general population comparator (See Data) . Mifepristone administered to pregnant mice, rats, and rabbits during organogenesis caused pregnancy loss in all species at clinically relevant doses based on body surface area comparisons (See Data) .The inhibition of both endogenous and exogenous progesterone by mifepristone at the progesterone receptor results in pregnancy loss. If mifepristone is used during pregnancy or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to a fetus. [See Contraindications ( 4 )] The estimated risk of fetal loss is elevated in patients with active Cushing’s syndrome (24% to 30%), and the risk of major birth defects is unknown. In the U.S. general population, the estimated background risks of major birth defects and miscarriage in clinically recognized pregnancies are 2% to 4% and 15% to 20%, respectively. Data Human Data There are no data on long term exposure to mifepristone in pregnancy. Available data are limited to exposure to a single dose of mifepristone for pregnancy termination. In a prospective study in France of 46 pregnancies exposed to a single dose of mifepristone alone and 59 pregnancies exposed to a single dose of mifepristone and misoprostol, the overall major birth defect rate (4%) was greater than the general population background rate of 2% to 3% (2 birth defects in each group). There was no pattern of birth defects identified. Animal Data Reproductive studies were performed in mice, rats and rabbits at doses of 0.25 to 4.0 mg/kg (less than human exposure at the maximum clinical