← Back to Clinical Trials
Recruiting Phase 4 NCT03821857

NCT03821857 Sex-Specific Effects of Endocrine Disruption on Aging and Alzheimer's Disease

◆ AI Clinical Summary
Plain-language summary for patients
Clinical Trial Summary
NCT ID NCT03821857
Status Recruiting
Phase Phase 4
Sponsor Mayo Clinic
Condition Alzheimer Disease
Study Type INTERVENTIONAL
Enrollment 614 participants
Start Date 2019-06-27
Primary Completion 2030-05

Eligibility & Interventions

Sex Female only
Min Age 60 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
18-F-Flortaucipir

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 614 participants in total. It began in 2019-06-27 with a primary completion date of 2030-05.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The researchers are trying to determine whether ovarian hormones are associated with aging processes and with the risk of developing Alzheimer's disease in women.

Eligibility Criteria

Mayo Clinic Rochester- Inclusion Criteria: * Women who previously participated in this study * Currently aged 60 years and older * More than six months post chemotherapy or major surgery requiring general anesthesia * Willing and able to sign informed consent Exclusion Criteria: * Not able to read and speak English * In hospice * Claustrophobic * If undergoing Tau imaging, cannot have QT Prolongation Mayo Clinic Jacksonville- Inclusion Criteria: * African American Women * Currently aged 60 years and older * More than six months post chemotherapy or major surgery requiring general anesthesia * Willing and able to sign informed consent Exclusion Criteria: * Not able to read and speak English * In hospice * Claustrophobic * If undergoing Tau imaging, cannot have QT Prolongation

Contact & Investigator

Central Contact

June Kendall-Thomas, CRC

✉ kendallthomas.june15@mayo.edu

📞 507-293-9397

Principal Investigator

Kejal Kantarci, MD

PRINCIPAL INVESTIGATOR

Mayo Clinic

Frequently Asked Questions

Who can join the NCT03821857 clinical trial?

This trial is open to female participants only, aged 60 Years or older, studying Alzheimer Disease. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT03821857 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT03821857 currently recruiting?

Yes, NCT03821857 is actively recruiting participants. Contact the research team at kendallthomas.june15@mayo.edu for enrollment information.

Where is the NCT03821857 trial being conducted?

This trial is being conducted at Jacksonville, United States, Rochester, United States.

Who is sponsoring the NCT03821857 clinical trial?

NCT03821857 is sponsored by Mayo Clinic. The principal investigator is Kejal Kantarci, MD at Mayo Clinic. The trial plans to enroll 614 participants.

Related Trials

Related Intelligence Guides

In-depth guides covering this condition's trials, eligibility, and what to expect.

ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology