Observing bone health in post-menopausal breast cancer patients after stopping certain treatments

Post-menopausal Breast Cancer Patients Treated With Aromatase Inhibitors and Denosumab: An Observational Study to Assess Rebound Bone Loss and Insufficiency Fractures After Denosumab Discontinuation

Observational Memorial Sloan Kettering Cancer Center · NCT05590949

This study looks at how stopping certain breast cancer treatments affects bone health in post-menopausal women over two years.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexFemale
SponsorMemorial Sloan Kettering Cancer Center Academic / other
Drugs / interventionsdenosumab
Locations7 sites (Basking Ridge, New Jersey and 6 other locations)
Trial IDNCT05590949 on ClinicalTrials.gov

What this trial studies

This observational study aims to collect data on bone health changes in post-menopausal women with breast cancer who have discontinued treatment with denosumab and aromatase inhibitors. Participants will undergo health assessments, blood tests, and imaging over five clinic visits spanning 24 months. The study will help understand the impact of stopping these treatments on bone complications. By gathering this information, researchers hope to identify potential risks and inform future treatment strategies.

Who should consider this trial

Good fit: Ideal candidates are post-menopausal women with a confirmed diagnosis of breast cancer who have stopped treatment with denosumab and aromatase inhibitors.

Not a fit: Patients with a history of osteoporosis or insufficiency fractures prior to starting denosumab may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into bone health management for post-menopausal breast cancer patients after stopping specific therapies.

How similar studies have performed: While similar studies have explored bone health in breast cancer patients, this specific observational approach focusing on post-treatment changes is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women with confirmed diagnosis of breast cancer
* Participant must be post-menopausal, defined as last menstrual cycle at least 12 months prior to enrollment
* Received at least 2 doses of denosumab and then discontinued therapy
* Discontinued AI prior to or within 6 months of last denosumab injection
* Patients must be 18 years of age or olde

Exclusion Criteria:

* Patients with history of osteoporosis prior to starting denosumab, based on previous dual-energy X-ray absorptiometry (DEXA) scan;
* Patients with history of insufficiency fracture.
* Patients who continue treatment with a different bone modifying agent (i.e oral or intravenous bisphosphonates) after discontinuation of denosumab
* Patients on chronic low-dose glucosteroids.

Where this trial is running

Basking Ridge, New Jersey and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerPost-menopausal Breast CancerDenosumabAromatase22-280Memorial Sloan Kettering Cancer Center
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.