Osteoporosis, bone & mineral

Zoledronate After Denosumab Discontinuation: Is Repeated Administrations More Effective Than Single Infusion?

J Clin Endocrinol MetabPublished Retrospective study

An erratum to this article was published (J Clin Endocrinol Metab, 16 Sep 2024 ↗)

Authors' conclusion

In patients with uncontrolled CTX levels after Dmab withdrawal, 2 ZOL infusions 6 months apart do not prevent BMD loss and FX.

Study context

Population
Patients discontinuing denosumab managed according to European Calcified Tissue Society (ECTS) recommendations; Zoledronate (ZOL) 1 month after denosumab (Dmab) withdrawal
Participants
52 patients
Exposure
Repeated ZOL infusion vs single ZOL infusion after Dmab discontinuation
Outcome
BMD changes and fracture rate
Follow-up
On average 17 months from Dmab withdrawal

Main finding

As reported in the abstract

Spine BMD change

2 ZOL infusions

−5.5

± 5.6 · %

CTX <280 ng/L

−0.1

± 5.5 · %

P = 0.008

Patients who repeated ZOL infusion
75%
Fractured patients
9.6%

Observational data: associations, not effects.

Further findings

Predictors of bone mineral density (BMD) worsening after Dmab withdrawal

CTX t1: OR (IQR 1.3-6.6), P = .009
2.9
Spine BMD gain during Dmab therapy corrected for number of Dmab injections: OR (IQR 1.2-7.2), P = .014
3.0
Sensitivity of CTX at t1 > 212 ng/L for predicting BMD loss
100%

Original publication

Zoledronate After Denosumab Discontinuation: Is Repeated Administrations More Effective Than Single Infusion? J Clin Endocrinol Metab. Published 13 April 2024. doi:10.1210/clinem/dgae224

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.