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Study identifier: NCT01747291 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Atypical Fracture Cohort Study

Condition: Atypical Femur Fracture · Atypical Subtrochanteric Fracture · Osteoporosis With AFf  ·  Sponsor: University Health Network, Toronto

PhaseN/A
Planned participants300
Who can joinAll sexes, 20 Years to 100 Years
Healthy volunteersNo

About this study

Osteoporosis is a disease characterized by increased bone fragility and deteriorating bone micro-architecture. The main consequence of osteoporosis is low-trauma fractures, most often of the hip, spine and wrist. Recently, another type of low-trauma fracture, atypical femur fractures (AFFs), have received much attention. Little is known of the cause of these debilitating fractures; however, they have been associated with long term bisphosphonate use. What we currently know about AFFs is based on case reports or small case series, or studies using administrative databases or secondary analyses of bisphosphonate trials. While these reports provide some preliminary information on the relationship between long term bisphosphonate exposure and AFFs, detailed clinical data are absent. As we have established a network of specialists across southern Ontario our group is in a position to collect meaningful information on a larger group of patients who have experienced these debilitating fractures into a centralized AFF registry.

This description comes directly from the study's public registry record.

Talk to the study team

Judite Scher, MSc  ·  416-340-4841  ·  jscher@uhnresearch.ca

Always discuss trial participation with your own doctor first.

Locations (3)

McMaster UniversityHamilton, Ontario, CanadaEnrolling By Invitation
University Health NetworkToronto, Ontario, CanadaRecruiting
St Michael's HospitalToronto, Ontario, CanadaEnrolling By Invitation

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Source record: clinicaltrials.gov/study/NCT01747291