NCT05962034

Brief Summary

The goal of this clinical trial is to compare neurovascular regulation in women with endometriosis and healthy women. The main questions it aims to answer are:

  • Do women with endometriosis have greater blood pressure and pain responses to a stimulus than healthy women?
  • Do women with endometriosis have greater platelet activity than healthy women? Participants will take aspirin and/or placebo and will:
  • perform hand grip exercise and cold pressor tests
  • undergo iontophoresis and blood draw Researchers will compare women with and without endometriosis to see if there is a difference in neurovascular regulation.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
96

participants targeted

Target at P50-P75 for phase_4

Timeline
15mo left

Started Jan 2024

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress67%
Jan 2024Aug 2027

First Submitted

Initial submission to the registry

June 30, 2023

Completed
27 days until next milestone

First Posted

Study publicly available on registry

July 27, 2023

Completed
5 months until next milestone

Study Start

First participant enrolled

January 1, 2024

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2027

Last Updated

May 4, 2025

Status Verified

May 1, 2025

Enrollment Period

2.6 years

First QC Date

June 30, 2023

Last Update Submit

May 2, 2025

Conditions

Keywords

EndometriosisAspirin

Outcome Measures

Primary Outcomes (4)

  • blood pressure

    change in blood pressure from baseline to maximum

    1 day

  • heart rate

    change in heart rate from baseline to maximum

    1 day

  • pain scale

    pain scale rating in response to testing

    1 day

  • skin blood flow

    change in skin blood flow from baseline to maximum

    1 day

Study Arms (2)

Aspirin

EXPERIMENTAL

one dose of aspirin

Drug: Aspirin

Placebo

PLACEBO COMPARATOR

Placebo pill

Other: Placebo

Interventions

650 mg aspirin (Acetylsalicylic acid)

Aspirin
PlaceboOTHER

placebo capsule

Placebo

Eligibility Criteria

Age18 Years - 45 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Born with a uterus
  • years old
  • With and without endometriosis

You may not qualify if:

  • Currently pregnant or breastfeeding
  • Diagnosed cardiovascular disease
  • BMI over 35
  • Nicotine use (e.g., smoking, chewing tobacco, vaping, etc.)
  • Currently using hormone replacement therapy (or have used within previous 6 months)
  • Known skin allergies or current rash, skin disease, disorders of pigmentation
  • Diabetes
  • Renal disease, renal artery stenosis, renal impairment
  • Liver disease
  • Stage II Hypertension (blood pressure \>140/\>90 mmHg)
  • Hypotension (blood pressure \< 90/60 mmHg)
  • Raynaud's syndrome
  • Any current medications which could conceivably alter cardiovascular responses (e.g. antihypertension medication, diuretic, digoxin)
  • Allergy or hypersensitivity to investigational agents
  • Immunosuppressed/immunocompromised

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Noll Laboratory

University Park, Pennsylvania, 16802, United States

RECRUITING

MeSH Terms

Conditions

Endometriosis

Interventions

Aspirin

Condition Hierarchy (Ancestors)

Genital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital Diseases

Intervention Hierarchy (Ancestors)

SalicylatesHydroxybenzoatesPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Central Study Contacts

Lacy Alexander, Ph.D.

CONTACT

Sue Slimak, RN

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Kinesiology

Study Record Dates

First Submitted

June 30, 2023

First Posted

July 27, 2023

Study Start

January 1, 2024

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

August 1, 2027

Last Updated

May 4, 2025

Record last verified: 2025-05

Locations