Evidence map›Paper›PMID 25127011›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2014

A model of BMD changes after alendronate discontinuation to guide postalendronate BMD monitoring.

Brian McNabb, Eric Vittinghoff, Richard Eastell, Ann V Schwartz, Douglas C Bauer, Kristine Ensrud, Elizabeth Barrett-Connor, Dennis M Black

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Fracture risk following intermission of osteoporosis therapy.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Pooled it
  2. Article
  3. Bisphosphonate Treatment in Osteoporosis: Optimal Duration of Therapy and the Incorporation of a Drug Holiday.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2016
    Review
  4. Proceedings of the 2015 Santa Fe Bone Symposium: Clinical Applications of Scientific Advances in Osteoporosis and Metabolic Bone Disease.Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Brian McNabbDepartment of General Internal Medicine (B.M.), San Francisco Veterans Affairs Medical Center, San Francisco, California 94121; Department of Medicine (B.M., D.C.B.), Division of Endocrinology (B.M.), Department of Epidemiology and Biostatistics (E.V., A.V.S., D.C.B., D.M.B.), University of California, San Francisco, San Francisco, California 94117; Academic Unit of Bone Metabolism (R.E.), Department of Human Metabolism, University of Sheffield, Sheffield S10 2JF, United Kingdom; Division of Epidemiology and Community Health (K.E.), Department of Medicine, University of Minnesota, Minneapolis, Minnesota 55455; Center for Chronic Disease Outcomes Research (K.E.), Veterans Affairs Health Care System, Minneapolis, Minnesota 55417; and Division of Epidemiology, Department of Family and Preventive Medicine (E.B.-C.), University of California, San Diego, San Diego, California 92093.
Eric Vittinghoff
Richard Eastell
Ann V Schwartz
Douglas C Bauer
Kristine Ensrud
Elizabeth Barrett-Connor
Dennis M Black

Funding

Biomarker Research in Musculoskeleton DiseaseK24AR051895 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BAUER, DOUGLAS C · 2005 to 2015
$1.5M
Medical Research Council MR/K006312/1NIAMS NIH HHS K24 AR051895
6 · The paper itself

Abstract

contextWomen stopping alendronate are commonly monitored with serial bone mineral density (BMD) measurements, yet no information exists on how frequently or for whom these measurements should be performed.

objectiveThe objective of the study was to develop a tool to guide post-alendronate BMD monitoring.

designA predictive model was constructed to estimate the time until a given percentage of women's BMD T-scores drop below a given threshold that indicates a management change (such as retreatment) would be considered. This model was then used to estimate the time it would take for groups of women defined by their baseline BMDs to drop below the given threshold.

settingData were derived from the Fracture Intervention Trial Long Term Extension (FLEX), the largest multicenter clinical trial of its type to date.

participantsFour hundred four women who had received an average of 5.1 years of alendronate during the Fracture Intervention Trial and were subsequently observed for 5 treatment-free years (on placebo) during the FLEX trial were used to estimate the change in BMD over time.

resultsIf a management change such as alendronate reinitiation would be considered when BMD T-score drops below -2.5, the model shows that women with total hip BMD greater than -1.9 T-scores at the time of alendronate discontinuation have less than a 20% probability that at follow-up, monitoring BMD will be below the threshold within 5 years. The model performed similarly, and results are provided over a range of management change thresholds from -1.75 to -3 T-scores.

conclusionsUsing the tool developed in this analysis, it is possible to estimate when BMD repeat measurement after alendronate discontinuation could potentially be useful. Measuring BMD within 5 years after alendronate discontinuation is unlikely to change management for women with total hip BMD 0.6 T-scores above a prespecified retreatment threshold within the range of -1.75 to -3 T-scores.

Indexed as

AgedAged, 80 and overAlendronateBone DensityBone Density Conservation AgentsFemaleFemur NeckHumansMiddle AgedOsteoporosis, PostmenopausalOsteoporotic FracturesPelvic BonesRadiographyWithholding TreatmentAlendronateBone Density Conservation Agents

Identifiers

PMID25127011
PMCPMC5393504

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.