Osteoporosis & bone health

Treatment for osteoporosis and risk of osteonecrosis of the jaw among female patients in the United Kingdom Clinical Practice Research Datalink

Osteoporos IntPublished Cohort study with nested case-control analysis

Authors' conclusion

Risk of ONJ increased after 2-3 years of treatment with antiresorptives; however, the absolute risk was low and returned to baseline shortly after treatment discontinuation.

Study context

Population
Cancer-free female patients aged 40–89 with, or at risk for, osteoporosis in UK Clinical Practice Research Datalink (CPRD) Aurum, followed from first osteoporosis treatment208 osteonecrosis of the jaw (ONJ) cases
Participants
467,654 patients
Comparison
Current antiresorptive treatment by duration vs past use of antiresorptives
Outcome
ONJ (osteonecrosis of the jaw)

Main finding

As reported in the abstract

ONJ
Each group vs past useOdds ratio (95% CI)
2-3 years of treatment
3.0(1.5–5.7)
10 years of treatment
8.1(4.4–15)

Observational data: associations, not effects.

Further findings

ONJ incidence rate, current antiresorptive treatment (primarily alendronate)

Incidence rates (IR) per 10,000 person-years
1.2 (95% CI 1.0-1.4)

Absolute risk of ONJ

After 5 years
≈0.05%
After 10 years
≈0.18%
Elevated risks diminished to near zero within 6 to 9 months of discontinuation

Original publication

Treatment for osteoporosis and risk of osteonecrosis of the jaw among female patients in the United Kingdom Clinical Practice Research Datalink. Osteoporos Int. Published 14 October 2024. doi:10.1007/s00198-024-07262-7

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