40 Clinical Trials for Various Conditions
To evaluate the effect of estradiol with or without a prior gonadotropin releasing hormone analogue on insulin sensitivity and vascular function in transgender females compared to cisgender controls.
This study will provide the first rigorous integrative test of the hypothesis that rapid rises in estradiol (a female hormone) increase the rewarding and disinhibiting effects of alcohol and that such increased sensitivity correlates with increased alcohol use. Identification of the behavioral mechanisms by which estradiol surges can increase alcohol use would provide a critical advancement of neurobiological theory of alcohol abuse in women, an understudied area, as well as provide new directions for personalization of alcohol abuse treatment in women. In this study, naturally-cycling women will be examined daily over their menstrual cycle using an integrative combination of daily ecological assessments of hormone fluctuations and alcohol use along with strategically-timed laboratory tests of their acute sensitivity to the rewarding and disinhibiting effects of a controlled dose of alcohol.
This clinical trial is an investigational research study to determine the ratio of glycosylated FSH21/FSH24 in premenopausal women and postmenopausal women as well as determining if estradiol can increase this ratio in postmenopausal women.
This is a prospective, randomized, controlled cohort study. This study will look at the effect of Ethinyl Estradiol 35mcg/Norethindrone 1mg and Ethinyl Estradiol 20 mcg/Norethindrone 1mg on postpartum depressive symptoms and sexual function scores when compared to a control group using no hormonal contraception. Depressive symptoms and sexual function will be measured using the Edinburgh Postnatal Depression Scale (EPDS), Arizona Sexual Experiences Scale (ASEX), and Brief Index of Sexual Functioning for Women (BISF-W). Participants will begin taking the medication at Week 3 postpartum, and these outcomes will be measured at baseline (0-1 day postpartum), Week 3, and Week 6-7. The investigators hypothesize that there will be an ethinyl estradiol dose related response in EPDS, ASEX, and BISF-W scores at Week 6-7, which would indicate a decrease in depressive symptoms and increase in sexual function in both of the oral contraceptive groups.
The aim of the present study is to determine if two products can deliver bioequivalent amounts of estrogen (estradiol, estriol, and estrone).
This proposal will examine the effects of estradiol administration on perimenopausal-onset (PO) anhedonia and psychosis symptoms as well as on brain function using simultaneous positron emission tomography and functional magnetic resonance imaging (PET-MR).
Using neuroimaging, the investigator will study the effects of estrogen on mood and brain function in perimenopausal women either with or without depression.
This study compares the effects of two common hormone medications on the heart and blood vessels of healthy post-menopausal women over the age of 45. The study will take place over the course of about 5 months. Each subject will take two different medications over two six-week periods. They will be randomized at the beginning of the study to either estradiol+medroxyprogesterone acetate or estradiol+drospirenone for the first period, and will receive the other medication the second six-weeks of the study. At the very beginning of the study and at the end of each six-week treatment period, subjects will come to the hospital various tests including non-invasive blood vessel imaging tests, blood draws to test the levels of certain hormones in the body, an oral glucose tolerance test, a test to monitor renal blood flow, and 24-hour blood pressure monitoring. Between treatment periods, there will be a four-week medication-free washout period.
Women are at greater risk for exercise-induced hyponatremia (low blood sodium concentration) and this risk has been attributed to their lower body weight and size, excess water ingestion and longer racing times relative to men. While these factors contribute to the greater incidence of hyponatremia in women, it is likely that their greater levels of estradiol in plasma and/or tissue also play a role in increasing the risk of hyponatremia in women. More importantly, estradiol may also leave women more susceptible to the extreme consequences of hyponatremia (i.e. brain damage, death). Hyponatremia is generally attributed to inappropriately elevated levels of the hormone arginine vasopressin (AVP). AVP is the most important hormone controlling water retention in the kidney. Earlier studies in our laboratory have demonstrated that estradiol lowers the threshold for thirst sensation and AVP release during exercise. The purpose of these studies is to test the hypotheses that in women with a history of hyponatremia, estradiol lowers the thresholds for thirst and AVP release, leading to greater fluid retention, lower blood sodium concentration during endurance exercise in the heat. However, we further hypothesize that progesterone administration along with estradiol administration will attenuate the effect of estradiol on the regulation of thirst and AVP, normalize fluid retention, and serum sodium concentration during endurance exercise in the heat. In women without a history of hyponatremia, we expect that estradiol administration will lower the thresholds for thirst and AVP release, but will not increase fluid retention or reduce blood sodium concentration during endurance exercise in the heat. We hypothesize that progesterone administration along with estradiol administration will attenuate the effect of estradiol on thirst and AVP, but have no effect on fluid retention or serum sodium concentration during endurance exercise in the heat. To test these hypotheses, women will perform endurance exercise in the heat under three hormonal conditions: 1) during Gonadotropin-releasing hormone (GnRH) antagonist alone--which will suppress estradiol and progesterone; 2) during GnRH antagonist+estradiol; and 3) during GnRH antagonist+estradiol+ progesterone. During exercise, fluid will be replaced with either water or a carbohydrate-electrolyte beverage (random assignment).
This within-person, crossover, 3-condition, placebo-controlled study compares the impact of three perimenstrual conditions on severity of suicidal symptoms in females with past-month suicidality but minimal risk of imminent suicide attempt. The three conditions are (1) perimenstrual withdrawal from estradiol only (during progesterone stabilization), (2) perimenstrual withdrawal from progesterone only (during estradiol stabilization), and (3) perimenstrual withdrawal from both estradiol and progesterone during placebo.
The purpose of this study is to compare the vaginal health between premenopausal and postmenopausal women before and after using oral "estradiol" for 14 days then "estradiol" and "progesterone" for 14 days.
The primary objective of this study is to assess the effect of ethinyl estradiol (EE)/norgestimate, a weak cytochrome P450 (CYP) 3A4 inhibitor, on the pharmacokinetics (PK) of lomitapide and 2 primary metabolites, M1 and M3.
The purpose of this research study is to learn about sexual function in postmenopausal women and to determine whether the use of topical clitoral application of estradiol improves women's libido, arousal, and orgasmic ability.
There is gender dimorphism in cardiovascular risk, with men at higher risk than women. However, the fundamental basis for the protective effect of female sex remains unclear. Recent data implicate the natriuretic peptide (NP) system as an important determinant of blood pressure. Also, NP levels are twice as high in women of reproductive age than in men, and gonadal steroids are important determinants of circulating NPs. These are the marked, but poorly understood differences in the NP status between men and women. The investigators hypothesize that gonadal steroids regulate NP release, specifically that testosterone inhibits and estrogen activates the NP axis, leading to differences in both resting NP levels and dynamic responses of the NP, RAAS, and kidneys to acute and chronic salt loading. Understanding the basis for gender differences in NP function should provide important insights regarding mechanisms underlying hypertension in men versus women.
A study to assess the effect of multiple doses of venetoclax on the pharmacokinetics of ethinyl estradiol and levonorgestrel in female participants with different hematological malignancies. Upon completion of this study, participants receiving clinical benefit in the opinion of the investigator and without any clinically significant evidence of disease progression with no access to venetoclax (not approved for the treated indication) may continue receiving venetoclax at the discretion of the investigator in a separate extension study.
A study to assess the Pharmacokinetics (PK) of combined oral ethinyl estradiol (EE) and levonorgestrel (LNG) in healthy female participants of non-child-bearing potential, when administered alone and in combination with multiple oral doses of zibotentan.
The specific aim for our study is to measure coagulation system activation and fibrinolysis following transdermal versus sublingual versus oral estradiol versus in transgender women. Hypothesis: Transdermal estradiol will result in less coagulation system activation and no effect on plasminogen activator inhibitor (PAI-1) or tissue-type plasminogen activator (t-PA). Oral estradiol will result in the most coagulation system activation and effect on PAI-1 and t-PA: Oral estradiol \> sublingual estradiol \> transdermal estradiol. A prospective crossover study will include ten subjects given estradiol 1 mg daily and instructed to take it orally, sublingually, or transdermal for 2 months with a 2-week washout period between routes of administration. Labs will be measured 7 times during the study.
The purpose of this study is to determine whether a short supplementation (7days) with BASIS™ increases the natural production of estradiol, measured in urinary waste. The overall objective is to determine whether through increased estradiol levels, the undesirable menopausal effects, assessed via questionnaires, are mitigated by a short-term supplementation with BASIS™
This is a two-part, open-label, fixed-sequence, two-period crossover drug interaction study to assess the potential effects of erythromycin on the pharmacokinetics of relugolix, estradiol (E2), and norethindrone (NET) in healthy postmenopausal women (Part 1) and the pharmacokinetics of relugolix in healthy adult men (Part 2).
Cannabis use is prevalent among pregnant women, but the effects of use on both the developing fetus and pregnant woman are unknown. Importantly, drug exposure could be influenced by the impact of pregnancy-associated hormones on the metabolism of tetrahydrocannabinol (THC), the main psychoactive component of cannabis. The goal of this study is to determine whether cortisol and estradiol - hormones that rise dramatically during pregnancy - increase the clearance of dronabinol (THC) in reproductive age women to simulate the pregnant state. The collected data will then be used to predict the time course and magnitude of changes in THC metabolism in pregnant women, particularly with gradually increasing estradiol and cortisol concentrations that evolve over the course of pregnancy. The overall objective of this study is to better understand the effects of THC use during pregnancy on the health of the pregnant woman and developing fetus.
This study will evaluate the effect of Annovera and tampon co-usage on the pharmacokinetics (PK) of segesterone acetate (SA) and ethinyl estradiol (EE).
This is an open-label, single-sequence, 1-way drug-drug interaction study to investigate the effect of GSK3640254 on the pharmacokinetics of a combination oral contraceptive containing ethinyl estradiol (EE) and levonorgestrel (LNG). Effective contraception for women infected with human immunodeficiency virus (HIV) is important in the prevention of unplanned pregnancies. The study will consist of a screening period of 28 days, check-in (Day -4), a run-in period and a treatment period. During the run-in period, subjects will be administered Portia® (0.03 milligrams \[mg\] EE/0.15 mg LNG) once daily on Days -3 to -1. Subjects will then be administered Portia once daily on Days 1 to 10 of treatment period A followed by administration of Portia once daily along with GSK3640254 200 mg on Days 11 to 21 of treatment period B. The duration of the study is approximately 8 weeks, including Screening and Run-in. Portia is a registered trademark of Teva Pharmaceuticals USA.
This within-person, crossover, 2-condition, placebo-controlled study compares the impact of two perimenstrual conditions on severity of suicidal symptoms in females with past-month suicidality but minimal risk of imminent suicide attempt. The two conditions are (1) natural perimenstrual withdrawal from estradiol and progesterone (during placebo), (2) perimenstrual stabilization of estradiol and progesterone using transdermal estradiol and oral micronized progesterone.
Background: Some women who had depression in the perimenopause may have mood symptoms again if they stop estrogen therapy. Estrogen acts in the brain and other tissues by binding to at least three types of estrogen receptors. One of these receptors, estrogen receptor beta may affect anxiety and depression. The drug LY500307 acts only on this receptor. In this study, researchers will initially give you estrogen and then suddenly stop estrogen after three weeks. Then they will study how LY500307 affects mood symptoms. Objectives: To study how withdrawing estradiol affects mood. To test the safety and side effects of LY500307. Eligibility: Healthy women ages 45-65 who had depression related to perimenopause in recent years and whose mood systems got better with estradiol Design: -Participants will be screened with: Medical history Physical exam Blood tests Psychiatric interview Gynecological exam * Participants able to get pregnant must use effective barrier birth control throughout the study. * During the first 3 weeks, participants will wear an estrogen patch. It is 1x2 inches and will be replaced every 3 days. * For the next 3 weeks, participants will take 3 study capsules every morning. They will not know if they get the study drug or placebo. * Some participants will also take a progesterone-like drug for 1 week at the end of the medication phase of the study. * Participants will have 9 one-hour study visits. They will have blood samples and vital signs taken. They will answer questions about mood and behavior symptoms. * Participants will keep a daily log of these symptoms. * Participants will have 2 transvaginal ultrasounds. A probe is temporarily placed 2-3 inches into the vaginal canal and sound waves are used to create pictures of the lining of the uturus. * Participants will have a final visit 4 weeks after stopping the study drug. They will answer questions about mood and side effects.
The purpose of this study is to investigate the effect of BMS-986195 in combination with an oral contraceptive in healthy female patients.
The purpose of this study is to investigate the effect of BMS-986165 in combination with an oral contraceptive in healthy female patients.
This is an open-label, 2-cycle, multiple-dose, single-sequence study in women of child-bearing potential. The primary objective is to assess the effect of BMS-986142 on the pharmacokinetics (PK) of Combined Oral Contraceptive Containing Ethinyl Estradiol and Norethindrone Acetate.
To evaluate the pharmacokinetics (PK) of EE and NES released from the CVR in the presence of a single dose and multiple doses of antimycotic co-medication (miconazole nitrate suppository or cream).
The purpose of this research study is to understand the effects of testosterone and estrogen on the body's response to the hormone insulin.
The purpose of this study is to determine if utilizing GnRH antagonists versus agonist long protocol during controlled ovarian stimulation (COH) with human-derived gonadotropins for assisted reproduction affects IVF outcome, peak estradiol level, and duration of stimulation.