Observational Study Conducted on Patients Receiving the ESOP 2 Stem to Confirm Security and Performance of the Device (ESOP2)

January 29, 2026 updated by: FH ORTHO

Prospective Observational Clinical Study Conducted Over a 10-year Period on Patients Who Received the ESOP 2 Stem to Restore Joint Function, in Order to Confirm Security and Performance of the Device

This study is a post-market clinical follow-up conducted in order to collect long-term data on security and performance of the ESOP 2 stem, which is intended to be implanted in case of total hip replacement, when used in real life conditions according to the instructions for use.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The primary objective of this study is to evaluate the security of the ESOP 2 stem by calculating the survival rate up to 10 years of follow-up.

The secondary objectives are to evaluate the security and performance of the device by assessing radiological data, gathering complications and evaluating functional score and quality of life score up to 10 years of follow-up.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • France
      • Bordeaux, France, 33000
        • Clinique Tivoli Ducos
      • Bordeaux, France, 33000
        • Nouvelle Clinique Bel-Air
      • Colmar, France, 68024
        • CH Pasteur
      • Garches, France, 92380
        • CH Raymond POINCARE
      • Haguenau, France, 67504
        • CH de Haguenau
      • Paris, France, 75651
        • Groupe Hospitalier Pitie-Salpetriere
      • Écully, France, 69130
        • Clinique du Val d'Ouest

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients from participating hospitals will be enrolled as part of their clinical routine care.

Description

Inclusion Criteria:

  • Subject implanted with ESOP 2 stem in one of the following indication according to the instructions for use: hip disorders; femoral neck fracture
  • Subject who received an information form and is willing to participate in the study

Exclusion Criteria:

  • Contraindications described in the instructions for use
  • Usual surgical contraindications
  • Subject who is not able to express his/her non-opposition

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients receiving ESOP 2 stem
Device: Hip prosthesis - ESOP 2 cementless femoral stem
ESOP 2 femoral stems are intended to be implanted in the femoral region during total hip arthroplasty in order to restore joint function.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Survival rate
Time Frame: 10 years post-op
10 years post-op

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Radiographies evaluation
Time Frame: immediate post-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Radiological results such as stability, osteointegration will be evaluated.
immediate post-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Rate of complications
Time Frame: per-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
All complications will be gathered during intervention and up to 10 years postoperatively.
per-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Functional outcomes such as pain, mobility
Time Frame: pre-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Functional outcomes will be determined by the Harris Hip score. This score ranges from 0 to 100, where, the higher the score, the better the patient outcome.
pre-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Quality of life evaluation
Time Frame: pre-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op
Quality of life will be determined by the OXFORD-12 score. This score ranges from 12 points to 60 points, where, the higher the score, the better the patient outcome.
pre-op, 3 months post-op, 1 year post-op, 5 years post-op, 10 years post-op

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
FH ORTHO

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 28, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 6, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 10, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 29, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2018-37

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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