ELLA

AbsorptionFollowing a single dose administration of ella in 20 women under fasting conditions, maximum plasma concentrations of ulipristal acetate and the active metabolite, monodemethyl-ulipristal acetate, were 176 and 69 ng/ml and were reached at 0.9 and 1 hour, respectively. Figure 1: Mean (± SD) Plasma Concentration-time Profile of Ulipristal Acetate and Monodemethyl-ulipristal Acetate Following Single Dose Administration of 30 mg Ulipristal Acetate

Table 2Pharmacokinetic Parameter Values...

Two multicenter clinical studies evaluated the efficacy and safety of ella . An open-label study provided the primary data to support the efficacy and safety of ulipristal acetate for emergency contraception when taken 48 to 120 hours after unprotected intercourse. A single-blind comparative study provided the primary data to support the efficacy and safety of ulipristal acetate for emergency contraception when taken 0 to 72 hours after unprotected intercourse and provided supportive data for ulipristal acetate for emergency contraception when taken > 72 to 120 hours after unprotected intercou...

The most common adverse reactions (≥ 5%) in the clinical trials were headache (18%), abdominal pain (12%), nausea (12%), dysmenorrhea (9%), fatigue (6%) and dizziness (5%). ( 6 )To report SUSPECTED ADVERSE REACTIONS, contact HRA Pharma America Inc., at 844-994-0329 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directl...

Ella is contraindicated for use in the case of known or suspected pregnancy [see Use in Specific Populations (8.1) ]. Known or suspected pregnancy ( 4 )

Existing Pregnancy: ella is not indicated for termination of an existing pregnancy. ( 5.1) Ectopic pregnancy: Evaluate women who become pregnant or complain of lower abdominal pain after taking ella for ectopic pregnancy. ( 5.2 ) Fertility Following Use : Rapid return of fertility is likely. Subsequent acts of intercourse should be protected by a reliable barrier method of contraception until the next menstrual period. ( 5.5 ) Effect on Menstrual Cycle: ella may alter the next expected menses. I...

7 DRUG INTERACTIONS Several in vivo drug interaction studies have shown that ella is predominantly metabolized by CYP3A4. Drugs or herbal products that induce CYP3A4 decrease the effectiveness of ella . ( 7.1 ) Initiation of progestin-containing contraceptives may impair the ability of ella to delay ovulation. ( 7.1 ) 7.1 Changes in Emergency Contraceptive Effectiveness Associated with Co-Administ...