Study of AC699 in Patients With Estrogen Receptor Positive/Human Epidermal Growth Factor Receptor 2 Negative (ER+/HER2-) Locally Advanced or Metastatic Breast Cancer (NCT05654532)
A Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Anti-Tumor Activity of AC699 in Patients With Estrogen Receptor Positive/Human Epidermal Growth Factor Receptor 2 Negative (ER+/HER2-) Locally Advanced or Metastatic Breast Cancer
🩺 Plain-English Summary (8th-Grade Level)
This clinical trial is evaluating a drug called AC699 in participants with estrogen receptor positive/human epidermal growth factor 2 negative (ER+/HER2-) locally advanced or metastatic breast cancer. The main goals of this study are to: * Identify the recommended dose of AC699 that can be given safely to participants * Evaluate the safety profile of AC699 * Evaluate the pharmacokinetics of AC699 * Evaluate the effectiveness of AC699
Who can join: Review the eligibility criteria below.
Location: Site 08 — Denver, Colorado
Age range: 18 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (9 Sites)
- Site 08 — Denver, Colorado
- Site 07 — Orlando, Florida
- Site 02 — Sarasota, Florida
- Site 06 — Rockville, Maryland
- Site 01 — Nashville, Tennessee
- Site 03 — Houston, Texas
- Site 09 — San Antonio, Texas
- Site 05 — Norfolk, Virginia
- Site 04 — Vancouver, Washington
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.