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Hydroxyapatite-coated Stem Outcome and Pain Evaluation

Hydroxyapatite-coated Stem Outcome and Pain Evaluation - HOPE Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000027594
Enrollment
808
Registered
2017-07-01
Start date
2017-08-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-inflammatory degenerative hip joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis, avascular necrosis, traumatic arthritis, slipped capital epiphysis, fused hip, fracture of pelvis, and diastrophic variant

Interventions

None listed

Sponsors

Kansai Rousai Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Has provided written informed consent for study participation. 2)Patients of Japanese descent, of either gender, 20 years of age or older. 3)A candidate for total hip arthroplasty (THA) due to NIDJD or any of its composite diagnoses such as osteoarthritis, avascular necrosis, traumatic arthritis, slipped capital epiphysis, fused hip, fracture of the pelvis, and diastrophic variant. 4)Willing and able to comply with study visit schedule including all follow-up visits. 5)Has no disease or conditions that in the opinion of the Investigator would compromise the study or would pose a risk due to study participation.

Exclusion criteria

Exclusion criteria: 1)Acute or chronic infection, local or systemic. 2)Severe muscle, nerve, or vascular diseases that endanger the extremity. 3)Has previously received THA in the index joint. 4)Any of the following conditions in the contralateral joint: Has received THA as a revision for a failed procedure. Has received THA that is not fully healed and well-functioning in the opinion of the Investigator. 5)Current diagnosis of immunosuppressive disorder. 6)History of cancer within 5 years of screening. 7)Known allergy to any component of the study device. 8)Conditions known to interfere with THA survival or outcomes including vascular insufficiency, muscular atrophy, uncontrolled diabetes, moderate to severe renal disease, neuromuscular disease. 9)Current diagnosis of fibromyalgia. 10)Body Mass Index (BMI) > 40. 11)Currently enrolled or has participated in a clinical research study (drug, device, or biologic) within 30 days of screening.

Design outcomes

Primary

MeasureTime frame
Change in Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ) Total Score between baseline and 730 days post-operation.

Secondary

MeasureTime frame
1)Cumulative revision rate for each femoral stem at each follow-up visit. 2)Change in Harris Hip Score (HHS) between baseline and each follow-up visit. 3)Change in the 3 dimensions of the JHEQ between baseline and each follow-up visit. 4)Change in pain as measured by the Visual Analogue Scale (VAS) between baseline and each follow-up visit. 5)Changes in EQ-5D-5L and in EQ-5D-5L-derived Quality Adjusted Life Years (QALY) between baseline and each follow-up visit. 6)Radiographic outcomes. 7)Comparison of revision rate, HHS, 3 dimensions and total score of JHEQ, pain, and EQ-5D-5L including QALY between subjects with and without a diagnosis of osteoporosis at each of the follow-up visits.

Countries

Japan

Contacts

Public ContactRyo Hasegawa

Smith & nephew KK North Asia Clinical Strategy and Operation

Ryo.Hasegawa@smith-nephew.com07031245766

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026