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Clinical Trial Summary

Women in the menopause transition ('perimenopause') are exposed to extreme hormone variability, tend to experience a unique set of severe stressors (e.g., divorce, death of loved ones), and are also at substantially elevated risk to suffer from mood and anxiety disorders. The purpose of this research is to understand the mechanisms by which variability in estradiol (E2) is associated with the symptoms of anxiety and anhedonia (loss of interest and pleasure - a common symptom of depression). By stabilizing E2 variability with a hormonal manipulation, this research will determine the degree to which the E2 variability (or E2 levels) plays a causal role in perimenopausal anxiety and anhedonia symptoms and whether it does so by affecting biological responses to stress.

Clinical Trial Description

Framed within a diathesis-stress model, the primary objective of this research is to determine the pathophysiological mechanisms of estradiol (E2) in the clinical anxiety and anhedonia seen in the menopause transition (MT). Specifically whether E2 variability or E2 levels predict exaggerated hypothalamic-pituitary-adrenal (HPA) axis reactivity and impaired recovery to stress and, in turn, deficits in behavioral indices of threat responsivity and approach motivation and symptoms of anxiety and anhedonia. The secondary objective of the research is to use a hormonal manipulation as a mechanistic probe to stabilize E2 variability in premenopausal ranges and determine if: a) HPA axis reactivity/recovery represents a biomarker of behavioral and symptom responses to E2 stabilization; b) whether recent severe life stress predicts the HPA axis response to hormone stabilization. A total of 170 women in the early or late MT who are eligible for the hormonal probe will be recruited to reflect the full continuum of anxiety and anhedonia symptoms based on self-report to the State-Trait Anxiety Inventory and the Snaith-Hamilton Pleasure Scale, respectively. However, the investigators will over-represent the clinically impairing end of the anxious and anhedonic phenotype (75% of the sample). Over an 8-week baseline, anxiety and anhedonia symptoms and serum E2 measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS) will be assessed on a weekly basis. At baseline week 8, HPA axis (plasma cortisol and ACTH) response to the Trier Social Stress Test and behavioral measures of threat responsivity (via Dot-Probe task) and approach motivation (Effort Expenditure for Rewards Task 'EEfRT') will be determined. Using transdermal E2 as a pharmacological probe to stabilize variability of E2 in premenopausal ranges, women will then be randomized to transdermal E2 (0.10 mg) or placebo for 16 weeks. This is not a clinical efficacy trial. The investigators will use an randomized control trial (RCT) design with a hormonal manipulation in order to investigate the pathophysiologic role of E2 variability (or E2 levels) in HPA axis dysregulation and, in turn, threat responsivity and approach motivation. Serum E2 will be assessed weekly during weeks 9-16, and HPA axis reactivity to stress and behavioral responses to the Dot-Probe and EEfRT tasks will be assessed every four weeks during the 16 week probe. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03003949
Study type Interventional
Source University of North Carolina, Chapel Hill
Status Terminated
Phase Phase 4
Start date January 24, 2017
Completion date May 10, 2020

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