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Observational Study of Bone Complications in People With Post-menopausal Breast Cancer Who Have Stopped Treatment With Denosumab and Aromatase Inhibitors

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

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05590949
Enrollment
100
Registered
2022-10-21
Start date
2022-10-18
Completion date
2026-10-18
Last updated
2026-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Keywords

Post-menopausal Breast Cancer, Breast Cancer, Denosumab, Aromatase, 22-280, Memorial Sloan Kettering Cancer Center

Brief summary

The purpose of this study to gather information about changes in the bones after stopping treatment with aromatase inhibitor/AI and denosumab. The study team will collect information from 5 standard clinic visits over the course of 24 months. The information will include information about participant health assessments, blood test results, and imaging results. After 24 months, participation in this study will be complete.

Interventions

Participants will be assessed at Timepoint 0 (last dose of denosumab injection) and then at 9,12,18 and 24 months following discontinuation of denosumab. The evaluation will include history and pain assessment for development of new fractures, weight and height measurement with BMI (body mass index) calculation, and blood work for bone turnover markers (including serum carboxy-terminal collagen crosslinks (CTX) in serum and bone specific alkaline phosphatase). Bone turn-over markers should be drawn in the morning, after at least 8 hours of fasting (water, black coffee and plain tea allowed).

DIAGNOSTIC_TESTDual-energy X-ray absorptiometry scans

Dual-energy X-ray absorptiometry (DEXA) scans will be performed at the 12 months timepoint , and then at the 24 month timepoint.

DIAGNOSTIC_TESTTrabecular Bone Score

TBS is an innovative gray-level texture measurement that utilizes lumbar spine DEXA images to discriminate changes in bone microarchitecture. Specifically, TBS measures bone quality through tridimensional bone areas with different trabecular and microstructural characteristics. The combination of TBS microstructure evaluation with bone density measured by DEXA has been shown to be superior to either measurement alone in the assessment of fracture risk.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Women with Stage 0-3 breast cancer confirmed at MSKCC * Currently have no clinical evidence of disease * 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.

Design outcomes

Primary

MeasureTime frameDescription
Change in serum carboxy-terminal collagen crosslinks (CTX)12 monthsEvaluate changes in bone turnover markers at 12 months after the last dose of denosumab - serum carboxy-terminal collagen crosslinks (CTX)
Change in bone specific alkaline phosphatase (ALK)12 monthsEvaluate changes in bone turnover markers at 12 months after the last dose of denosumab - bone specific alkaline phosphatase (ALK)

Countries

United States

Contacts

CONTACTMonica Fornier, MD
fornierm@mskcc.org646-888-4563
CONTACTAzeez Farooki, MD
farookia@mskcc.org646-608-3798
PRINCIPAL_INVESTIGATORMonica Fornier, MD

Memorial Sloan Kettering Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 4, 2026