Completed OBSERVATIONAL NCT03786393

Estrogen Receptor 1 Gene Polymorphism Frequency in Fibromyalgia Syndrome

Investigation of Estrogen Receptor 1 Gene Polymorphism Frequency in Patients With Fibromyalgia Syndrome

Sponsor: Nigde Omer Halisdemir University

Interventions ACR 1990 fibromyalgia critters

Updated 10 times since 2019 Last updated: Aug 31, 2021 Started: Mar 11, 2019 Primary completion: Apr 15, 2021 Completion: May 15, 2021

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates Fibromyalgia and is currently completed. Nigde Omer Halisdemir University leads this study, which shows 10 recorded versions since 2019 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

10 versions recorded

Sep 2025 — Present [monthly]

Completed
Sep 2024 — Sep 2025 [monthly]

Completed
Jul 2024 — Sep 2024 [monthly]

Completed
Dec 2021 — Jul 2024 [monthly]

Completed
Oct 2021 — Dec 2021 [monthly]

Completed

Status: Active Not Recruiting → Completed

▶ Show 5 earlier versions

Feb 2021 — Oct 2021 [monthly]

Active Not Recruiting

Status: Recruiting → Active Not Recruiting
Jan 2021 — Feb 2021 [monthly]

Recruiting
Nov 2020 — Jan 2021 [monthly]

Recruiting
Apr 2019 — Nov 2020 [monthly]

Recruiting

Status: Not Yet Recruiting → Recruiting
Jan 2019 — Apr 2019 [monthly]

Not Yet Recruiting

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Nigde Omer Halisdemir University

Data source: Nigde Omer Halisdemir University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Niğde, Turkey (Türkiye)