Clinical trial NCT05590949: Observational Study of Bone Complications in People With Post-menopausal Breast Cancer Who Have Stopped Treatment With Denosumab and Aromatase Inhibitors
Official title: 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
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Breast Cancer
Keywords: Post-menopausal Breast Cancer
Breast Cancer
Denosumab
Aromatase
22-280
Memorial Sloan Kettering Cancer Center
Lead sponsor: Memorial Sloan Kettering Cancer Center
Sponsor class: OTHER
First posted: 2022-10-21
Enrollment: 100
Sex: FEMALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients will be recruited through the Breast Medicine and Survivorship Services. Members of the research team will verify eligibility against the patient's medical record. Once eligibility is confirmed, and if the treating investigator has no objection to enrolling the patient in the research study, the patient will be approached for consent. Consent to the protocol will be conducted by a trained consenting professional. Consent will take place either in the clinic, or by following the most updated standard working procedures for consent via telemedicine.

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.


Eligibility 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.

Primary outcomes:
measure: Change in serum carboxy-terminal collagen crosslinks (CTX)
timeFrame: 12 months
measure: Change in bone specific alkaline phosphatase (ALK)
timeFrame: 12 months
Secondary outcomes:
Other outcomes:
Locations:
city: Basking Ridge
country: United States
facility: Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)
state: New Jersey
city: Middletown
country: United States
facility: Memorial Sloan Kettering Monmouth (Limited Protocol Activities)
state: New Jersey
city: Montvale
country: United States
facility: Memorial Sloan Kettering Bergen (Limited Protocol Activities)
state: New Jersey
city: Commack
country: United States
facility: Memorial Sloan Kettering Cancer Center @ Suffolk-Commack (Limited protocol activities)
state: New York
city: Harrison
country: United States
facility: Memorial Sloan Kettering Westchester (Limited Protocol Activities)
state: New York
city: New York
country: United States
facility: Memorial Sloan Kettering Cancer Center
state: New York
city: Uniondale
country: United States
facility: Memorial Sloan Kettering Nassau (Limited Protocol Activities)
state: New York
Study officials:
affiliation: Memorial Sloan Kettering Cancer Center
name: Monica Fornier, MD
role: PRINCIPAL_INVESTIGATOR
References: