Clinical trial NCT01401556: C-STOP Fracture Trial
Official title: Comparing Strategies Targeting Osteoporosis to Prevent Recurrent Fractures: C-STOP# Randomized Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Osteoporosis
Keywords: osteoporosis
fracture
treatment
guidelines
quality
Lead sponsor: University of Alberta
Sponsor class: OTHER
First posted: 2011-07-25
Enrollment: 441
Sex: ALL
Minimum age (years): 50
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: HEALTH_SERVICES_RESEARCH

Brief summary: The objective of the proposed research is to improve quality of care for older outpatients who present to Emergency Departments and Fracture Clinics with an osteoporosis-related wrist or other upper extremity fracture. Although most of these patients warrant evidence-based and guideline-recommended osteoporosis testing and treatment, numerous studies demonstrate treatment rates less than 10-20% in the year post-fracture. Several trials, including the investigators own prior studies, have tried to address this osteoporosis care-gap and have reported that various multifaceted interventions (combinations of patient and physician education, guidelines, and physician reminders) can modestly improve treatment rates compared with usual care, although 60-70% of the patients exposed to these interventions still remain untreated. The investigators believe that a case-manager (who identifies and independently sees patients in clinic, arranges bone mineral density \[BMD\] tests, and offers guideline-based treatment to those with low BMD) represents a potential solution that holds great promise.

The investigators hypothesize that an osteoporosis case-manager will effectively and efficiently increase rates of osteoporosis treatment in older outpatients with upper extremity fractures when compared with a documented effective and cost-saving multifaceted intervention. To test this hypothesis the investigators propose a pragmatic patient-level randomized controlled comparative effectiveness trial with blinded outcomes ascertainment that compares the case-manager strategy with the multifaceted intervention.

Detailed description: Objective: To improve treatment of osteoporosis in older patients with upper extremity fractures.

Background: Osteoporosis causes low bone mass and skeletal fragility leading to fractures of the hip, spine, and upper extremity that cause pain, deformity, disability, and even death. It affects 2 million older Canadians and costs us a billion dollars a year. Guidelines recommend aggressive treatment in older patients with osteoporosis-related fractures because risk of another fracture is 20% within 1-year and because bisphosphonate treatment reduces fracture risk by 50%. Unfortunately, less than 10% of older outpatients are treated for osteoporosis in the year post-fracture and even the most effective multifaceted interventions tested so far (i.e., combinations of patient education with physician guidelines and reminders) have only increased post-fracture osteoporosis treatment rates with bisphosphonates to 22%.

Proposed Strategy: Osteoporosis case-managers will identify older fracture patients in Emergency Departments and Fracture Clinics; arrange bone mineral density (BMD) tests; meet with patients to counsel them and go over their results; and then offer and prescribe bisphosphonate treatment to those with low BMD.

Hypothesis: An osteoporosis case-manager will effectively and efficiently increase rates of BMD testing and bisphosphonate treatment in older high-risk patients with upper extremity fractures compared with a previously tested effective and cost-saving multifaceted osteoporosis intervention (an active-comparator control consisting of telephone-based education for patients and treatment guidelines with reminders for family physicians).

Specific Aims: To determine whether an osteoporosis case-manager strategy can:

1. Increase rates of osteoporosis treatment more than a multifaceted intervention
2. Increase rates of BMD testing more than a multifaceted intervention
3. Be cost-effective when compared with either multifaceted intervention or usual care

Study Design: Randomized controlled comparative effectiveness trial with blinded (allocation-concealed) ascertainment of outcomes comparing case-managers to the multifaceted intervention. Eligible patients will be 50 years and older with an upper extremity fracture and not already treated with bisphosphonates, recruited from Emergency Departments and Fracture Clinics. Primary outcome will be the proportion starting bisphosphonates within 6-months. Secondary outcomes include BMD testing, any osteoporosis treatment, and appropriate care. Case-managers are expected to increase bisphosphonate treatment rates to 43% (achieved in our pilot trial) vs published multifaceted intervention rates of 22%. With alpha=0.05, beta=0.9, and 10% attrition rates, the total minimum required sample size is 240 patients. Using 1-year outcomes and micro-costing data from the trial and our published Markov decision analytic model for osteoporosis quality improvement interventions, the incremental costs and effectiveness of the case-manager will then be compared to both the multifaceted intervention and usual care. Major secondary outcome includes long-term treatment persistence, and to examine this question (e.g., 80% persistence rates with case-manager vs 50% persistence with multifaceted intervention) will require a sample size of at least 360 patients.

Eligibility criteria: Inclusion Criteria:

* age 50 years or greater
* any forearm (distal radius or ulna, "wrist") or arm (proximal humerus, "upper arm") fracture

Exclusion Criteria:

* unable to give simple informed consent or unwilling to participate in the study
* unable to understand, read, and converse in English
* presence of pathological (e.g., cancer related) or multiple (e.g., major trauma) fractures
* already treated for osteoporosis with a bisphosphonate
* residence in a nursing home or from outside Edmonton

Primary outcomes:
measure: Proportion of untreated patients newly starting prescription osteoporosis treatment with a bisphosphonate after their fracture
timeFrame: 6-months
Secondary outcomes:
measure: New Treatment Persistence
timeFrame: 1-year
Other outcomes:
Locations:
city: Edmonton
country: Canada
facility: University of Alberta Hospitals
state: Alberta
Study officials:
affiliation: University of Alberta
name: Sumit R Majumdar, MD, MPH
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Alberta
name: Carrie Ye, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Majumdar SR, Johnson JA, Bellerose D, McAlister FA, Russell AS, Hanley DA, Garg S, Lier DA, Maksymowych WP, Morrish DW, Rowe BH. Nurse case-manager vs multifaceted intervention to improve quality of osteoporosis care after wrist fracture: randomized controlled pilot study. Osteoporos Int. 2011 Jan;22(1):223-30. doi: 10.1007/s00198-010-1212-7. Epub 2010 Apr 1.
citation: Majumdar SR, Johnson JA, McAlister FA, Bellerose D, Russell AS, Hanley DA, Morrish DW, Maksymowych WP, Rowe BH. Multifaceted intervention to improve diagnosis and treatment of osteoporosis in patients with recent wrist fracture: a randomized controlled trial. CMAJ. 2008 Feb 26;178(5):569-75. doi: 10.1503/cmaj.070981.
citation: McAlister FA, Ye C, Beaupre LA, Rowe BH, Johnson JA, Bellerose D, Hassan I, Majumdar SR. Adherence to osteoporosis therapy after an upper extremity fracture: a pre-specified substudy of the C-STOP randomized controlled trial. Osteoporos Int. 2019 Jan;30(1):127-134. doi: 10.1007/s00198-018-4702-7. Epub 2018 Sep 19.