What happens to bones when breast cancer treatment stops?

NCT ID NCT05590949

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 20, 2026 · Last updated Sep 04, 2026 · Updated 3 times

Summary

This study follows post-menopausal women with breast cancer who have stopped taking aromatase inhibitors and denosumab, two medications that affect bone. Researchers will monitor bone turnover markers, fractures, and overall bone health over 24 months through clinic visits and blood tests. The goal is to understand how bones change after stopping these treatments, which could inform future care.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Physical evaluations and blood tests to monitor bone health after stopping denosumab and aromatase inhibitors
What this could lead to
If successful, this could help doctors understand how to manage bone health after stopping these medications, potentially reducing fracture risk in breast cancer survivors.
What could go wrong
This is an observational study, so it won't test a new treatment. Results may not apply to all patients, and the follow-up period is limited to 24 months.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2022

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

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.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    7 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)

    RECRUITING

    Basking Ridge, New Jersey, 07920, United States

  • Memorial Sloan Kettering Bergen (Limited Protocol Activities)

    RECRUITING

    Montvale, New Jersey, 07645, United States

  • Memorial Sloan Kettering Cancer Center

    RECRUITING

    New York, New York, 10065, United States

  • Memorial Sloan Kettering Cancer Center @ Suffolk-Commack (Limited protocol activities)

    RECRUITING

    Commack, New York, 11725, United States

  • Memorial Sloan Kettering Monmouth (Limited Protocol Activities)

    RECRUITING

    Middletown, New Jersey, 07748, United States

  • Memorial Sloan Kettering Nassau (Limited Protocol Activities)

    RECRUITING

    Uniondale, New York, 11553, United States

  • Memorial Sloan Kettering Westchester (Limited Protocol Activities)

    RECRUITING

    Harrison, New York, 10604, United States

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