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- Effect of Extended 30 μg Ethinyl Estradiol with Continuous Low-Dose Ethinyl Estradiol and Cyclic 20 μg Ethinyl Estradiol Oral Contraception on Adolescent Bone Density: A Randomized Trial. [Randomized Controlled Trial]
- JPJ Pediatr Adolesc Gynecol 2016; 29(6):635-642
- CONCLUSIONS: Compared with the reference group, bone accrual was statistically significantly lower among LNG/EE 21/7 users but not among LNG/EE 30-μg extended regimen users. Additional research is needed to clarify the clinical relevance of these findings.
- Pharmacokinetic drug-drug interaction assessment of LCZ696 (an angiotensin receptor neprilysin inhibitor) with omeprazole, metformin or levonorgestrel-ethinyl estradiol in healthy subjects. [Controlled Clinical Trial]
- CPClin Pharmacol Drug Dev 2016; 5(1):27-39
- LCZ696 is a novel angiotensin receptor neprilysin inhibitor in development for the treatment of cardiovascular diseases. Here, we assessed the potential for pharmacokinetic drug-drug interaction of L...
LCZ696 is a novel angiotensin receptor neprilysin inhibitor in development for the treatment of cardiovascular diseases. Here, we assessed the potential for pharmacokinetic drug-drug interaction of LCZ696 (400 mg, single dose or once daily [q.d.]) when co-administered with omeprazole 40 mg q.d. (n = 28) or metformin 1000 mg q.d. (n = 27) or levonorgestrel-ethinyl estradiol 150/30 μg single dose (n = 24) in three separate open-label, single-sequence studies in healthy subjects. Pharmacokinetic parameters of LCZ696 analytes (sacubitril, LBQ657, and valsartan), metformin, and levonorgestrel-ethinyl estradiol were assessed. Omeprazole did not alter the AUCinf of sacubitril and pharmacokinetics of LBQ657; however, 7% decrease in the Cmax of sacubitril, and 11% and 13% decreases in AUCinf and Cmax of valsartan were observed. Co-administration of LCZ696 with metformin had no significant effect on the pharmacokinetics of LBQ657 and valsartan; however, AUCtau,ss and Cmax,ss of metformin were decreased by 23%. Co-administration of LCZ696 with levonorgestrel-ethinyl estradiol had no effect on the pharmacokinetics of ethinyl estradiol and LBQ657 or AUCinf of levonorgestrel. The Cmax of levonorgestrel decreased by 15%, and AUCtau,ss and Cmax,ss of valsartan decreased by 14% and 16%, respectively. Co-administration of LCZ696 with omeprazole, metformin, or levonorgestrel-ethinyl estradiol was not associated with any clinically relevant pharmacokinetic drug interactions.
- Extended-Cycle Levonorgestrel/Ethinylestradiol and Low-Dose Ethinylestradiol (Seasonique(®)): A Review of Its Use as an Oral Contraceptive. [Review]
- DDrugs 2015; 75(9):1019-26
- A 91-day extended-cycle oral contraceptive (OC) consisting of levonorgestrel/ethinylestradiol 150/30 µg for 84 days and ethinylestradiol 10 µg for 7 days (Seasonique(®)) has recently been approved fo...
A 91-day extended-cycle oral contraceptive (OC) consisting of levonorgestrel/ethinylestradiol 150/30 µg for 84 days and ethinylestradiol 10 µg for 7 days (Seasonique(®)) has recently been approved for the prevention of pregnancy in adult women in the EU. This regimen allows for a reduction in the number of withdrawal bleeding episodes to four per year, compared with 13 episodes per year with conventional 28-day regimens. Seasonique(®) was effective in preventing pregnancy in a large (n = 1006), noncomparative trial of healthy, sexually active women. In this trial, the overall Pearl index (pregnancies per 100 woman-years of use) in women aged 18-35 years (n = 621) was 0.76 and the Pearl index for method-failure (compliant use) was 0.26. Scheduled (withdrawal) bleeding and/or spotting remained fairly constant over time, with a mean of 2 days of bleeding and 1 day of spotting per each 91-day cycle. Unscheduled bleeding and unscheduled spotting was highest during the first few cycles of use and decreased thereafter. Seasonique(®) was generally well tolerated, with a tolerability profile in line with that expected for OCs. Seasonique(®) extends the contraceptive options currently available to women, particularly in those who desire fewer withdrawal bleeding episodes.
- Ovulatory effects of three oral contraceptive regimens: a randomized, open-label, descriptive trial. [Randomized Controlled Trial]
- CContraception 2015; 91(6):495-502
- CONCLUSIONS: The 21/7-active low-dose COC regimen (DSG/EE+7 days EE) showed ovarian activity suppression that was similar to the 24/4 (DRSP/EE+4 days PBO) and 21/7 (LNG/EE+7days PBO) regimens.The 21/7-active low-dose COC regimen (DSG/EE+7 days EE) that included only EE during the traditional HFI showed suppression of ovarian follicular activity that was similar to the 24/4 (DRSP/EE+4days PBO) and the 21/7 (LNG/EE+7 days PBO) comparator regimens.
- Effect of pradigastat, a diacylglycerol acyltransferase 1 inhibitor, on the pharmacokinetics of a combination oral contraceptive in healthy female subjects. [Controlled Clinical Trial]
- IJInt J Clin Pharmacol Ther 2015; 53(4):317-24
- CONCLUSIONS: Pradigastat did not elicit clinically relevant changes in the magnitude of Levora-28® exposure. Therefore, dose adjustment is not required for Levora-28® when co-administered with pradigastat.
- A phase 1, multicentre, open-label study to evaluate ovarian follicular activity and hormone levels with an extended-regimen combined oral contraceptive with low-dose ethinyl estradiol supplementation. [Clinical Trial, Phase I]
- EJEur J Contracept Reprod Health Care 2015; 20(4):249-58
- CONCLUSIONS: The 91-day extended-regimen COC with low-dose EE supplementation was found to be effective in suppressing ovarian activity and inhibiting ovulation and was well tolerated. Return to ovulation was rapid, occurring within approximately one month after discontinuation of COC.
- Bleeding pattern and cycle control of a low-dose transdermal contraceptive patch compared with a combined oral contraceptive: a randomized study. [Randomized Controlled Trial]
- CContraception 2015; 91(2):113-20
- CONCLUSIONS: Bleeding pattern and cycle control with the EE/GSD patch was comparable to an EE/LNG-containing COC.The findings suggest that bleeding patterns with the EE/GSD patch are similar to an EE/LNG-containing COC, except for absence of withdrawal bleeding, which was less common in patch users. The EE/GSD patch may constitute an additional contraceptive option for women.
- No interacting influence of lavender oil preparation silexan on oral contraception using an ethinyl estradiol/levonorgestrel combination. [Randomized Controlled Trial]
- DRDrugs R D 2014; 14(4):265-72
- CONCLUSIONS: Co-administration of Silexan did not affect the efficacy of a combination oral contraceptive containing EE and LNG and was well tolerated.
- Estradiol valerate plus dienogest versus ethinylestradiol plus levonorgestrel for the treatment of primary dysmenorrhea. [Journal Article]
- IJInt J Gynaecol Obstet 2014 Mar 11
- CONCLUSIONS: Both E2V/DNG and EE/LNG led to considerable relief of dysmenorrheic complaints among women with primary dysmenorrhea, decreasing the number of days with dysmenorrheic pain from baseline to a similar extent. ClinicalTrials.gov:NCT00909857.
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- Effect of brivaracetam (400 mg/day) on the pharmacokinetics and pharmacodynamics of a combination oral contraceptive in healthy women. [Randomized Controlled Trial]
- JCJ Clin Pharmacol 2013; 53(12):1313-21
- Brivaracetam is a high-affinity synaptic vesicle protein 2A ligand, in Phase III clinical development for epilepsy. This study assessed the effect of brivaracetam 400 mg/day on the pharmacokinetics a...
Brivaracetam is a high-affinity synaptic vesicle protein 2A ligand, in Phase III clinical development for epilepsy. This study assessed the effect of brivaracetam 400 mg/day on the pharmacokinetics and pharmacodynamics of a combination oral contraceptive (OC) containing 30 µg ethinylestradiol and 150 µg levonorgestrel, in healthy pre-menopausal women. This open-label, single-center, randomized, two-way crossover, multiple oral dose study (N01080) included two consecutive 28-day cycles without (control) or with brivaracetam (test), and a 28-day follow-up. OC was taken on Days 1–21 of every cycle and brivaracetam 200 mg twice daily was administered on Days 1–20 of the test cycle. Ethinylestradiol and levonorgestrel pharmacokinetics were determined on Day 20 and endogenous hormones were measured frequently during both control and test cycles. Overall, 23/24 participants (age: 19–39 years) completed the study. AUC ratio (90% confidence interval) for brivaracetam versus control was 0.73 (0.69, 0.78) for ethinylestradiol and 0.78 (0.72, 0.83) for levonorgestrel, outside pre-defined bioequivalence limits (0.80–1.25). Levels of endogenous hormones were similar and normal during brivaracetam and control cycles. Brivaracetam in combination with OC was well tolerated. Brivaracetam 400 mg/day co-administered with a combination OC in healthy women reduced ethinylestradiol and levonorgestrel plasma levels but did not result in ovulation.