MIFEPRISTONE Dailymed

For purposes of this treatment, pregnancy is dated from the first day of the last menstrual period. The duration of pregnancy may be determined from menstrual history and clinical examination. Assess the pregnancy by ultrasonographic scan if the duration of pregnancy is uncertain or if ectopic pregnancy is suspected. Remove any intrauterine device (“IUD”) before treatment with Mifepristone tablets, 200mg begins [see Contraindications]. The dosing regimen for Mifepristone tablets, 200mg and misoprostol is: Mifepristone 200mg orally + misoprostol 800mcg buccally Day One: Mifepristone 200mg Administration One 200mg tablet of Mifepristone is taken in a single oral dose. Day Two or Three: Misoprostol Administration (minimum 24-hour interval between, Mifepristone and misoprostol) Four 200mcg tablets (total dose 800mcg) of misoprostol are taken by the buccal route. Tell the patient to place two 200mcg misoprostol tablets in each cheek pouch (the area between the cheek and gums) for 30 minutes and then swallow any remnants with water or another liquid (see Figure 1).

For purposes of this treatment, pregnancy is dated from the first day of the last menstrual period. The duration of pregnancy may be determined from menstrual history and clinical examination. Assess the pregnancy by ultrasonographic scan if the duration of pregnancy is uncertain or if ectopic pregnancy is suspected. Remove any intrauterine device (“IUD”) before treatment with Mifepristone tablets, 200mg begins [see Contraindications]. The dosing regimen for Mifepristone tablets, 200mg and misoprostol is: Mifepristone 200mg orally + misoprostol 800mcg buccally Day One: Mifepristone 200mg Administration One 200mg tablet of Mifepristone is taken in a single oral dose. Day Two or Three: Misoprostol Administration (minimum 24-hour interval between, Mifepristone and misoprostol) Four 200mcg tablets (total dose 800mcg) of misoprostol are taken by the buccal route. Tell the patient to place two 200mcg misoprostol tablets in each cheek pouch (the area between the cheek and gums) for 30 minutes and then swallow any remnants with water or another liquid (see Figure 1). Patients taking Mifepristone tablets, 200mg must take misoprostol within 24 to 48 hours after taking Mifepristone. The effectiveness of the regimen may be lower if misoprostol is administered less than 24 hours or more than 48 hours after Mifepristone administration. Because most women will expel the pregnancy within 2 to 24 hours of taking misoprostol [see Clinical Studies] , discuss with the patient an appropriate location for her to be when she takes the misoprostol, taking into account that expulsion could begin within 2 hours of administration.

Patients should follow-up with their healthcare provider approximately 7 to 14 days after the administration of Mifepristone. This assessment is very important to confirm that complete termination of pregnancy has occurred and to evaluate the degree of bleeding. Termination can be confirmed by medical history, clinical examination, human Chorionic Gonadotropin (hCG) testing, or ultrasonographic scan. Lack of bleeding following treatment usually indicates failure; however, prolonged or heavy bleeding is not proof of a complete abortion. The existence of debris in the uterus (e.g., if seen on ultrasonography) following the treatment procedure will not necessarily require surgery for its removal.

Patients should follow-up with their healthcare provider approximately 7 to 14 days after the administration of Mifepristone. This assessment is very important to confirm that complete termination of pregnancy has occurred and to evaluate the degree of bleeding. Termination can be confirmed by medical history, clinical examination, human Chorionic Gonadotropin (hCG) testing, or ultrasonographic scan. Lack of bleeding following treatment usually indicates failure; however, prolonged or heavy bleeding is not proof of a complete abortion. The existence of debris in the uterus (e.g., if seen on ultrasonography) following the treatment procedure will not necessarily require surgery for its removal. Women should expect to experience vaginal bleeding or spotting for an average of 9 to 16 days. Women report experiencing heavy bleeding for a median duration of 2 days. Up to 8% of women may experience some type of bleeding for more than 30 days. Persistence of heavy or moderate vaginal bleeding at the time of follow-up, however, could indicate an incomplete abortion. If complete expulsion has not occurred, but the pregnancy is not ongoing, women may be treated with another dose of misoprostol 800mcg buccally. There have been rare reports of uterine rupture in women who took Mifepristone tablets, 200mg and misoprostol, including women with prior uterine rupture or uterine scar and women who received multiple doses of misoprostol within 24 hours. Women who choose to use a repeat dose of misoprostol should have a follow-up visit with their healthcare provider in approximately 7 days to assess for complete termination. Surgical evacuation is recommended to manage ongoing pregnancies after medical abortion [see Use in Specific Populations (8.1)]. Advise the patient whether you will provide such care or will refer her to another provider as part of counseling prior to prescribing Mifepristone tablets, 200mg.

Uterine bleeding occurs in almost all patients during a medical abortion. Prolonged heavy bleeding (soaking through two thick full-size sanitary pads per hour for two consecutive hours) may be a sign of incomplete abortion or other complications and prompt medical or surgical intervention may be needed to prevent the development of hypovolemic shock. Counsel patients to seek immediate medical attention if they experience prolonged heavy vaginal bleeding following a medical abortion [see Boxed Warning]. Women should expect to experience vaginal bleeding or spotting for an average of 9 to 16 days. Women report experiencing heavy bleeding for a median duration of 2 days. Up to 8% of all subjects may experience some type of bleeding for 30 days or more. In general, the duration of bleeding and spotting increased as the duration of the pregnancy increased. Decreases in hemoglobin concentration, hematocrit, and red blood cell count may occur in women who bleed heavily. Excessive uterine bleeding usually requires treatment by uterotonics, vasoconstrictor drugs, surgical uterine evacuation, administration of saline infusions, and/or blood transfusions. Based on data from several large clinical trials, vasoconstrictor drugs were used in 4.3% of all subjects, there was a decrease in hemoglobin of more than 2g/dL in 5.5% of subjects, and blood transfusions were administered to ≤0.1% of subjects. Because heavy bleeding requiring surgical uterine evacuation occurs in about 1% of patients, special care should be given to patients with hemostatic disorders, hypocoagulability, or severe anemia.

Mifepristone tablets, 200mg is contraindicated in patients with a confirmed or suspected ectopic pregnancy because mifepristone is not effective for terminating ectopic pregnancies [see Contraindications (4)]. Healthcare providers should remain alert to the possibility that a patient who is undergoing a medical abortion could have an undiagnosed ectopic pregnancy because some of the expected symptoms experienced with a medical abortion (abdominal pain, uterine bleeding) may be similar to those of a ruptured ectopic pregnancy. The presence of an ectopic pregnancy may have been missed even if the patient underwent ultrasonography prior to being prescribed Mifepristone tablets, 200mg.

Mifepristone tablets, 200mg is contraindicated in patients with a confirmed or suspected ectopic pregnancy because mifepristone is not effective for terminating ectopic pregnancies [see Contraindications (4)]. Healthcare providers should remain alert to the possibility that a patient who is undergoing a medical abortion could have an undiagnosed ectopic pregnancy because some of the expected symptoms experienced with a medical abortion (abdominal pain, uterine bleeding) may be similar to those of a ruptured ectopic pregnancy. The presence of an ectopic pregnancy may have been missed even if the patient underwent ultrasonography prior to being prescribed Mifepristone tablets, 200mg. Women who became pregnant with an IUD in place should be assessed for ectopic pregnancy.

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. Information presented on common adverse reactions relies solely on data from US studies, because rates reported in non-US studies were markedly lower and are not likely generalizable to the US population. In three US clinical studies totaling 1,248 women through 70 days gestation who used mifepristone 200mg orally followed 24-48 hours later by misoprostol 800mcg buccally, women reported adverse reactions in diaries and in interviews at the follow-up visit. These studies enrolled generally healthy women of reproductive age without contraindications to mifepristone or misoprostol use according to the Mifepristone tablets, 200mg product label.Gestational age was assessed prior to study enrollment using the date of the woman's last menstrual period, clinical evaluation, and/or ultrasound examination. About 85% of patients report at least one adverse reaction following administration of Mifepristone tablets, 200mg and misoprostol, and many can be expected to report more than one such reaction. The most commonly reported adverse reactions (>15%) were nausea, weakness, fever/chills, vomiting, headache, diarrhea, and dizziness (see Table 1). The frequency of adverse reactions varies between studies and may be dependent on many factors including the patient population and gestational age. Abdominal pain/cramping is expected in all medical abortion patients and its incidence is not reported in clinical studies. Treatment with Mifepristone tablets, 200mg and misoprostol is designed to induce uterine bleeding and cramping to cause termination of an intrauterine pregnancy. Uterine bleeding and cramping are expected consequences of the action of Mifepristone tablets, 200mg and misoprostol as used in the treatment procedure. Most women can expect bleeding more heavily than they do during a heavy menstrual period [see Warnings and Precautions (5.2)]. Table 1 uls the adverse reactions reported in US clinical studies with incidence >15% of women. Table 1 Adverse Reactions Reported in Women Following Administration of Mifepristone (oral) and Misoprostol (buccal) in US Clinical Studies Adverse Reaction # US studies Number of Evaluable Women Range of frequency (%) Upper Gestational Age of Studies Reporting Outcome Nausea 3 1,248 51-75% 70 days Weakness 2 630 55-58% 63 days Fever/chills 1 414 48% 63 days Vomiting 3 1,248 37-48% 70 days Headache 2 630 41-44% 63 days Diarrhea 3 1,248 18-43% 70 days Dizziness 2 630 39-41% 63 days One study provided gestational-age stratified adverse reaction rates for women who were 57-63 and 64-70 days; there was little difference in frequency of the reported common adverse reactions by gestational age. Information on serious adverse reactions was reported in six US and four non-US clinical studies, totaling 30,966 women through 70 days gestation who used mifepristone 200mg orally followed 24-48 hours later by misoprostol 800mcg buccally. Serious adverse reaction rates were similar between US and non-US studies, so rates from both US and non-US studies are presented. In the US studies, one studied women through 56 days gestation, four through 63 days gestation, and one through 70 days gestation, while in the non-US studies, two studied women through 63 days gestation, and two through 70 days gestation. Serious adverse reactions were reported in <0.5% of women. Information from the US and non-US studies is presented in Table 2. Table 2 Serious Adverse Reactions Reported in Women Following Administration of Mifepristone (oral) and Misoprostol (buccal) in US and Non-US Clinical Studies US Non-US Adverse Reaction # of studies Number of Evaluable Women Range of Frequency (%) # of studies Number of Evaluable Women Range of Frequency (%) Transfusion 4 17,774 0.03-0.5% 3 12,134 0-0.1% Sepsis 1 629 0.2% 1 11,155 <0.01%* ER visit 2 1,043 2.9-4.6% 1 95 0 Hospitalization Related to Medical Abortion 3 14,339 0.04-0.6% 3 1,286 0-0.7% Infection without sepsis 1 216 0 1 11,155 0.2% Hemorrhage NR NR NR 1 11,155 0.1% NR = Not reported *This outcome represents a single patient who experienced death related to sepsis.

The following adverse reactions have been identified during post approval use of Mifepristone tablets, 200mg and misoprostol. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Infections and infestations: post-abortal infection (including endometritis, endomyometritis, parametritis, pelvic infection, pelvic inflammatory disease, salpingitis) Blood and the lymphatic system disorders: anemia Immune system disorders: allergic reaction (including anaphylaxis, angioedema, hives, rash, itching) Psychiatric disorders: anxiety Cardiac disorders: tachycardia (including racing pulse, heart palpitations, heart pounding) Vascular disorders: syncope, fainting, loss of consciousness, hypotension (including orthostatic), light-headedness Respiratory, thoracic and mediastinal disorders: shortness of breath Gastrointestinal disorders: dyspepsia Musculoskeletal, connective tissue and bone disorders: back pain, leg pain Reproductive system and breast disorders: uterine rupture, ruptured ectopic pregnancy, hematometra, leukorrhea General disorders and administration site conditions: pain

Mifepristone is indicated, in a regimen with misoprostol, for the medical termination of intrauterine pregnancy through 70 days gestation. Risks to pregnant women are discussed throughout the labeling.

Risk Summary Mifepristone is indicated, in a regimen with misoprostol, for the medical termination of intrauterine pregnancy through 70 days gestation. Risks to pregnant women are discussed throughout the labeling. Refer to misoprostol labeling for risks to pregnant women with the use of misoprostol. The risk of adverse developmental outcomes with a continued pregnancy after a failed pregnancy termination with Mifepristone tablets, 200mg in a regimen with misoprostol is unknown; however, the process of a failed pregnancy termination could disrupt normal embryo-fetal development and result in adverse developmental effects. Birth defects have been reported with a continued pregnancy after a failed pregnancy termination with Mifepristone tablets, 200mg in a regimen with misoprostol. In animal reproduction studies, increased fetal losses were observed in mice, rats, and rabbits and skull deformities were observed in rabbits with administration of mifepristone at doses lower than the human exposure level based on body surface area. Data Animal Data In teratology studies in mice, rats and rabbits at doses of 0.25 to 4.0mg/kg (less than 1/100 to approximately 1/3 the human exposure based on body surface area), because of the antiprogestational activity of mifepristone, fetal losses were much higher than in control animals. Skull deformities were detected in rabbit studies at approximately 1/6 the human exposure, although no teratogenic effects of mifepristone have been observed to date in rats or mice. These deformities were most likely due to the mechanical effects of uterine contractions resulting from inhibition of progesterone action.

Safety and efficacy of Mifepristone tablets, 200mg have been established in pregnant females. Data from a clinical study of Mifepristone tablets, 200mg that included a subset of 322 females under age 17 demonstrated a safety and efficacy profile similar to that observed in adults.

The anti-progestational activity of mifepristone results from competitive interaction with progesterone at progesterone-receptor sites. Based on studies with various oral doses in several animal species (mouse, rat, rabbit, and monkey), the compound inhibits the activity of endogenous or exogenous progesterone, resulting in effects on the uterus and cervix that, when combined with misoprostol, result in termination of an intrauterine pregnancy.

The anti-progestational activity of mifepristone results from competitive interaction with progesterone at progesterone-receptor sites. Based on studies with various oral doses in several animal species (mouse, rat, rabbit, and monkey), the compound inhibits the activity of endogenous or exogenous progesterone, resulting in effects on the uterus and cervix that, when combined with misoprostol, result in termination of an intrauterine pregnancy. During pregnancy, the compound sensitizes the myometrium to the contraction-inducing activity of prostaglandins.

Use of Mifepristone tablets, 200mg in a regimen with misoprostol disrupts pregnancy by causing decidual necrosis, myometrial contractions, and cervical softening, leading to the expulsion of the products of conception.

Use of Mifepristone tablets, 200mg in a regimen with misoprostol disrupts pregnancy by causing decidual necrosis, myometrial contractions, and cervical softening, leading to the expulsion of the products of conception. Doses of 1mg/kg or greater of mifepristone have been shown to antagonize the endometrial and myometrial effects of progesterone in women. Antiglucocorticoid and antiandrogenic activity: Mifepristone also exhibits antiglucocorticoid and weak antiandrogenic activity. The activity of the glucocorticoid dexamethasone in rats was inhibited following doses of 10 to 25mg/kg of mifepristone. Doses of 4.5mg/kg or greater in human beings resulted in a compensatory elevation of adrenocorticotropic hormone (ACTH) and cortisol. Antiandrogenic activity was observed in rats following repeated administration of doses from 10 to 100mg/kg.