Cochrane · systematic review · CD003376

Etidronate for the primary and secondary prevention of osteoporotic fractures in postmenopausal women

Wells, GA, Hsieh, S-C, Peterson, J, et al. · Cochrane Database of Systematic Reviews · 2024 · Cochrane Library

MusculoskeletalAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
12
current version
GRADE rated
10
No studies
2
Included studies
NR
No studies 2 · 16.7%Ungraded 0 · 0%Very low 5 · 41.7%Low 3 · 25%Moderate 2 · 16.7%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Intermittent/cyclic etidronate 400 mg/day compared to placebo for the primary prevention of osteoporotic fractures in postmenopausal women

Population: postmenopausal women with a lower risk for fracturesa
6 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical vertebral fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 3.03 [0.32, 28.44]NRLow
Downgraded: imprecision
Non‐vertebral fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 0.56 [0.2, 1.61]NRModerate
Downgraded: imprecision
Hip fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
no estimate extractedNRVery low
Downgraded: risk of bias, imprecision
Wrist fractures № of participants: 0 (0 RCTs)
Intermittent/cyclic etidronate 400 mg/day vs placebo
no estimate extractedNRNo studies
Withdrawals due to adverse events
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 1.41 [0.81, 2.47]NRLow
Downgraded: risk of bias, imprecision
Serious adverse events
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 0.9 [0.52, 1.54]NRModerate
Downgraded: risk of bias, imprecision

Intermittent/cyclic etidronate 400 mg/day compared to placebo for the secondary prevention of osteoporotic fractures in postmenopausal women

Population: postmenopausal women with a higher risk for fracturesa
6 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical vertebral fractures № of participants: 0 (0 RCTs)
Intermittent/cyclic etidronate 400 mg/day vs placebo
no estimate extractedNRNo studies
Non‐vertebral fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 1.07 [0.72, 1.58]NRLow
Downgraded: risk of bias, imprecision, indirectness
Hip fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 0.93 [0.17, 5.19]NRVery low
Downgraded: risk of bias, imprecision, indirectness
Wrist fractures
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 0.9 [0.13, 6.04]NRVery low
Downgraded: risk of bias, imprecision, indirectness
Withdrawals due to adverse events
Intermittent/cyclic etidronate 400 mg/day vs placebo
RR 1.09 [0.54, 2.18]NRVery low
Downgraded: risk of bias, imprecision, indirectness
Serious adverse events
Intermittent/cyclic etidronate 400 mg/day vs placebo
no estimate extractedNRVery low
Downgraded: risk of bias, imprecision, indirectness