Scaphoid Non-union and Low-intensity Pulsed Ultrasound Trial
SNAPU
A Randomized Controlled Trial Comparing Low-Intensity, Pulsed Ultrasound to Placebo in the Treatment of Operatively Managed Scaphoid Non-Unions
1 other identifier
interventional
154
1 country
6
Brief Summary
This is a prospective, double-blind, multicentered, randomized controlled trial to determine the effectiveness of low-intensity pulsed ultrasound in decreasing the time to union of scaphoid non-unions after operative fixation as measured by serial CT scanning. Multiple centers across Canada will be involved in the study. Blinding will include patients, surgeons, research assistants, as well as all data handlers and analysts until trial completion or mid-term analysis.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2014
Longer than P75 for not_applicable
6 active sites
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
September 1, 2014
CompletedFirst Submitted
Initial submission to the registry
February 26, 2015
CompletedFirst Posted
Study publicly available on registry
March 9, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2023
CompletedMay 18, 2022
May 1, 2022
8.3 years
February 26, 2015
May 16, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Time to radiographic union as evidenced on serial CT scans
up to 52 weeks
Secondary Outcomes (6)
Percentage of union
8 weeks post-op
Percentage of union
12 weeks post-op
Rate of change of percent union
8-12 weeks, 12-16 weeks
Pattern of partial union on initial CT scan
8 weeks
Time to return to work
up to 52 weeks
- +1 more secondary outcomes
Study Arms (2)
Active LIPUS Unit
ACTIVE COMPARATORLow-intensity pulsed ultrasound treatment 20 minutes/day until the fracture is deemed united clinically and on CT scan.
Sham LIPUS Unit
SHAM COMPARATORSham device treatment 20 minutes/day until the fracture is deemed united clinically and on CT scan.
Interventions
Active low-intensity pulsed ultrasound
Placebo device with no active therapy
Eligibility Criteria
You may qualify if:
- Subject has a scaphoid fracture \> 3 months-old with at least one feature of non-union including, collapse or humpback deformity, sclerosis at the fracture site or cystic changes evident on pre-operative diagnostic imaging
- Subject has consented to surgical fixation at surgeon discretion
- Subject is willing and has the ability to operate the LIPUS device for at least four to six months post-operatively
You may not qualify if:
- Subject with concomitant fracture or dislocation of another ipsilateral carpal bone, distal radius or ulna, or bilateral scaphoid fractures
- Subject has an open or pathological fracture
- Subject who are actively receiving treatment of a rheumatologic disorder with a biologic medication or other arthritic condition
- Subject has a history of fibrous dysplasia, chronic renal failure, Paget's disease, osteopetrosis or other impairing disease/condition of the musculoskeletal system
- Subject with an active infection of the affected limb
- Subject with a high risk of death within the follow up period
- Subject is a prisoner or at high risk of incarceration
- Subject who are unlikely to complete follow-up (no fixed address, states they are unlikely to complete follow up, psychiatric condition at surgeon discretion)
- Subject has cognitive impairment or language difficulties that would impede the completion of questionnaires
- Subject who are pregnant or anticipate getting pregnant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Calgarylead
- Workers' Compensation Board, Albertacollaborator
- Calgary Orthopaedic Research and Education Fundcollaborator
- Bioventus LLCcollaborator
Study Sites (6)
South Health Campus
Calgary, Alberta, T3M1M4, Canada
Peter Lougheed Centre
Calgary, Alberta, Canada
St. Paul's Hospital
Vancouver, British Columbia, Canada
PanAM Clinic Foundation
Winnipeg, Manitoba, Canada
The Ottawa Hospital (Civic Campus)
Ottawa, Ontario, Canada
Hôpital du Sacré-Coeur de Montreal
Montreal, Quebec, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Neil White, MD
University of Calgary
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Assistant Professor, Section of Orthopaedics, Hand & Wrist Surgeon
Study Record Dates
First Submitted
February 26, 2015
First Posted
March 9, 2015
Study Start
September 1, 2014
Primary Completion
December 31, 2022
Study Completion
December 31, 2023
Last Updated
May 18, 2022
Record last verified: 2022-05