Skip to content

Vaginal Estrogen Treatment and Effect on Hemostatic Parameters in Postmenopausal Women

Is There an Effect of Local Vaginal Estrogen Treatment on the Hemostatic Parameters in Postmenopausal Women?

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07160504
Enrollment
90
Registered
2025-09-08
Start date
2025-03-21
Completion date
2026-12-31
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vagina Atrophy

Keywords

Postmenopausal, Hemostasis, Venous thromboembolic event

Brief summary

This study investigates whether vaginal estrogen treatment has an effect on hemostatic parameters in postmenopausal women. Blood samples are collected before and after 3 months treatment to assess changes in hemostasis.

Detailed description

This prospective cohort study includes 90 postmenopausal women aged ≥ 50, having vaginal atrophy symptoms and indication for treatment with vaginal estrogen tablets 10 µg at least 3 times a week for 3 months. Participants are divided into 2 study populations. Study population 1: 45 without a history of venous thromboembolic event and study population 2: 45 with a history of venous thromboembolic event. Participation will involve 2 visits: * First visit: prior the initiation of treatment an interview is carried out to assess inclusion criteria and information on demographics followed by blood sampling. * Second visit: follow-up blood sampling after three months treatment. Hemostatic parameters will be assessed, comparing the blood samples at baseline with the follow-up blood sample.

Interventions

Vaginal estrogen tablets 10 µg at least 3 times a week (on indication, prescribed at the outpatient clinic).

Sponsors

University of Southern Denmark
CollaboratorOTHER
University of Aarhus
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
50 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Postmenopausal women aged ≥ 50 * Symptomatic vaginal atrophy * Indication for standard treatment with vaginal estrogen tablets 10 µg at least three times a week * Study population 1: without a history of venous thromboembolic event * Study population 2: with a history of venous thromboembolic event

Exclusion criteria

* Unable to give written informed consent * Does not speak Danish * Current cancer treatment * Current treatment with blood thinning medication (except plateletinhibitor) * Current treatment with local or systematic estrogen * Systemic inflammatory disease, liver disease or kidney disease

Design outcomes

Primary

MeasureTime frameDescription
Endogenous thrombin potential (ETP)0 months, 3 monthsnmol/l x min
Endogenous trombin lag time (LT)0 months, 3 monthsmin
Endogenous trombin peak height0 months, 3 monthsnmol/l
Factor VIII (FVIII)0 months, 3 monthsPercentage
Antithrombin0 months, 3 monthsPercentage
Protein S0 months, 3 monthsPercentage
Protein C0 months, 3 monthsPercentage
D-dimer0 months, 3 monthsng/mL
CRP0 months, 3 monthsmg/l
Fibrinogen0 months, 3 monthsg/l
Tissue-type plaminogen activator (t-PA)0 months, 3 monthsng/mL
Plasminogen activator inhibitor type 1 (PAI-1)0 months, 3 monthsng/mL
Faktor XII (FXII)0 months, 3 monthsμg/mL
Prekallikrein (PK)0 months, 3 monthsμg/mL
H-Kininogen (HK)0 months, 3 monthsPercentage
Cleaved H-Kininogen (cHK)0 months, 3 monthsμg/mL
C1-esterase inhibitor (C1-inh)0 months, 3 monthsg/L
Endogenous kallikrein potential (EKP)0 months, 3 monthsnmol/L x min

Countries

Denmark

Contacts

Primary ContactPinar Bor, Pinar Bor, MD, PhD, Prof.
isipinbo@rm.dk+45 78 42 11 13

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026