Osteoporosis, bone & mineral

Preventing post-denosumab bone loss with zoledronate: a 2-year randomized trial in post-menopausal women without and with pre-exposure to bisphosphonates

Osteoporos IntPublished Randomised controlled trial

Authors' conclusion

Findings support that early and multiple Zol injections are needed better to preserve BMD after stopping Dmab in long-term users.

Study context

Population
Post-menopausal women treated with denosumab (Dmab) > 2 years and reaching BMD T-scores > −2.0
Participants
44 women
Comparison
Zoledronate at 6 months vs 9 months after last denosumab vs zoledronate if CTX > 644 ng/l or BMD decreased ≥ 5%
  • 6 Mn = 12
  • 9 Mn = 11
  • OBSn = 11
  • OBS-BPsn = 10
Primary endpoint
Co-primary: lumbar spine BMD changes 1-year post-Zol and frequency of Zol treatments required
Follow-up
1-year post-Zol
Methodological detailsmulticentre, open-label, parallel observational group
  • Multicentre
  • Open-label
  • Parallel observational group

Primary result

As reported in the abstract

  • Most post-Dmab patients without previous bisphosphonates (BPs) required multiple zoledronate (Zol) infusions (median 2, range 1-5)
  • Most OBS-BPs patients needed only one Zol
  • Median LS BMD changes 12 and 24 months post-Zol similar between groups

Further findings

Outcome6 M9 MOBSOBS-BPs
LS BMD change at 12 months after end of last Dmab dose effect−4.71%−8.25%−8.13%−4.62%
  • LS BMD change at 12 months after end of last Dmab dose effect: numerically larger in 9 M and OBS

Original publication

Preventing post-denosumab bone loss with zoledronate: a 2-year randomized trial in post-menopausal women without and with pre-exposure to bisphosphonates. Osteoporos Int. Published 29 June 2026. doi:10.1007/s00198-026-08115-1

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

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