Not Yet RecruitingNot Applicable

Prospective Catalystem CT-RSA

Canada30 participantsStarted 2026-08-01

Plain-language summary

Multi-Centre Study in patients undergoing Total Hip Arthroplasty with the Smith+Nephew CATALYSTEM™ Primary Hip System. The primary objective is to establish the mean inferior stem migration (subsidence) of the CATALYSTEM™ stem using CT-RSA over the first two postoperative years.

Who can participate

Age range

21 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Patient requires primary unilateral THA for a severely painful and/or disabled joint from osteoarthritis, traumatic arthritis, rheumatoid arthritis, avascular necrosis, or congenital dysplasia.
. Patients is at least 21 years old at the time of informed consent.
. Patient is able to read and comprehend the informed patient consent document and willing and able to provide informed patient consent for participation in the study and have authorized the transfer of his/her information for study purposes.
. Patient is able and willing to return for follow-up as specified by the study protocol.
. Patient is able and willing to complete the required questionnaires and patient-completed portions of the study protocol.

Exclusion criteria

. Patient requires implants other than the planned components or would not be a candidate for allowable components to be used (see 4) in the judgement of the surgeon.
. Patient is planned to have simultaneous bilateral hip arthroplasty
. Patient had contralateral hip arthroplasty less than 6 months prior to the day of surgery.
. Patient is expected to have contralateral hip arthroplasty in the following 6 months at the time of consent into this study.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Migration - CATALYSTEM Stem

Timeframe: 2 Years

Trial details

NCT IDNCT07698717

SponsorCanadian Radiostereometric Analysis Network

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2028-12-31

Contact for this trial

Sarah Tran

204-926-1231 stran@orthoinno.com

View on ClinicalTrials.gov More Hip Osteoarthritis trials