NCT01969279

Brief Summary

Although there is strong evidence that bisphosphonates prevent certain types of osteoporotic fractures, there are concerns that these medications may be associated with rare atypical femoral fractures (AFF). But the relationship between long-term bisphosphonate treatment and AFF is unclear. In this study, the investigators would like to analyze the long term effects on femur by bisphosphonate treatment.The participants are treated in the investigators hospital more than four years.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2000

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2000

Completed
13 years until next milestone

First Submitted

Initial submission to the registry

October 13, 2013

Completed
12 days until next milestone

First Posted

Study publicly available on registry

October 25, 2013

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2017

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2018

Completed
Last Updated

October 19, 2016

Status Verified

October 1, 2016

Enrollment Period

17 years

First QC Date

October 13, 2013

Last Update Submit

October 18, 2016

Conditions

Keywords

OsteoporosisBisphosphonateAtypical femoral fractureSide effect

Outcome Measures

Primary Outcomes (1)

  • Influence of long-term bisphosphonate treatment on femur.

    The investigators plan to analyze 120 patients who undergo bisphosphonate treatments more than four years. We investigate radiographic features in patients with long-term bisphosphonate treatment. We investigate bilateral femur radiographs concerning to cortical thickening and cortical hypertrophy. We also investigate age and sex matched patients without bisphosphonate treatment as a control group. To determine the bisphosphonate treatment effects on femur, statistical analyses are performed using Spearman correlation, paired t-test, chi-square test, Fisher's exact test and Mann-Whitney U test. Finally, we conclude the effects of bisphosphonate treatment on femur.

    Up to 24 month

Secondary Outcomes (1)

  • Longitudinal effects of bisphosphonate treatments on femur

    Up to108 months

Eligibility Criteria

Age45 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Oateoporosis patients using bisphosphonate more than four years.

You may qualify if:

  • Patients using bisphosphonate more than four years

You may not qualify if:

  • patients who could not use bisphosphonate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tomidahama Hospital

Yokkaichi, Mie-ken, 510-8008, Japan

RECRUITING

MeSH Terms

Conditions

Femoral FracturesOsteoporosis

Condition Hierarchy (Ancestors)

Fractures, BoneWounds and InjuriesLeg InjuriesBone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of Hospital

Study Record Dates

First Submitted

October 13, 2013

First Posted

October 25, 2013

Study Start

October 1, 2000

Primary Completion

October 1, 2017

Study Completion

October 1, 2018

Last Updated

October 19, 2016

Record last verified: 2016-10

Locations