Expert opinion on drug delivery · 2020
Estradiol softgel inserts for the treatment of VVA symptoms: an expert opinion.
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Liu James H, Bernick Brian, Mirkin Sebastian
Аннотация
INTRODUCTION: Vulvar and vaginal atrophy (VVA) affects up to two thirds of postmenopausal women, with symptoms of vaginal dryness, dyspareunia, and vulvar/vaginal irritation. Despite the availability of various treatments, women express dissatisfaction with their options. An estradiol (E2; 4-µg and 10-µg) softgel vaginal insert was approved by the Food and Drug Administration (FDA) to treat moderate to severe dyspareunia, a symptom of VVA, due to menopause. These inserts were designed to treat VVA effectively and safely while avoiding some of the drawbacks of other administration methods.
AREAS COVERED: This article reviews the physical characteristics and pharmacokinetic data of the E2 softgel vaginal insert. Primary and secondary efficacy endpoints and safety data are reviewed from the pivotal REJOICE trial (NCT02253173), and substudies that explore response rates, changes in vaginal epithelium by visual assessment, efficacy in patient subgroups, effects on sexual function, and patient satisfaction compared with other treatments.
EXPERT OPINION: The E2 insert shows that vaginal drug delivery is an optimal route of administration for locally treating VVA. This E2 softgel vaginal insert is a safe and effective treatment for symptoms of postmenopausal VVA. The E2 insert's pharmacokinetic characteristics are related to its unique formulation, rapid dissolution, and minimal systemic absorption.
ABBREVIATIONS: AE: adverse event; AUC: area under the concentration-time curve; BMI: body mass index; Cavg: average concentration; CI: confidence interval; Cmax: maximum concentration; Cmin: minimum concentration; E2: estradiol; FDA: Food and Drug Administration; FSFI: Female Sexual Function Index; GSM: genitourinary symptoms of menopause: MBS: most bothersome symptom; NAMS: North American Menopause Society; OR: odds ratio; PI: pulsatility index; PK: pharmacokinetic; REVIVE: Real Women's Views of treatment options for menopausal Vaginal changEs; RI: resistance index; ROC: receiver operating characteristic; TEAE: treatment-emergent adverse event; tmax: time to maximum concentration; VVA: vulvar and vaginal atrophy.
AREAS COVERED: This article reviews the physical characteristics and pharmacokinetic data of the E2 softgel vaginal insert. Primary and secondary efficacy endpoints and safety data are reviewed from the pivotal REJOICE trial (NCT02253173), and substudies that explore response rates, changes in vaginal epithelium by visual assessment, efficacy in patient subgroups, effects on sexual function, and patient satisfaction compared with other treatments.
EXPERT OPINION: The E2 insert shows that vaginal drug delivery is an optimal route of administration for locally treating VVA. This E2 softgel vaginal insert is a safe and effective treatment for symptoms of postmenopausal VVA. The E2 insert's pharmacokinetic characteristics are related to its unique formulation, rapid dissolution, and minimal systemic absorption.
ABBREVIATIONS: AE: adverse event; AUC: area under the concentration-time curve; BMI: body mass index; Cavg: average concentration; CI: confidence interval; Cmax: maximum concentration; Cmin: minimum concentration; E2: estradiol; FDA: Food and Drug Administration; FSFI: Female Sexual Function Index; GSM: genitourinary symptoms of menopause: MBS: most bothersome symptom; NAMS: North American Menopause Society; OR: odds ratio; PI: pulsatility index; PK: pharmacokinetic; REVIVE: Real Women's Views of treatment options for menopausal Vaginal changEs; RI: resistance index; ROC: receiver operating characteristic; TEAE: treatment-emergent adverse event; tmax: time to maximum concentration; VVA: vulvar and vaginal atrophy.