Abdominal Wall Repair With Strattice in Germany: a Cohort Study (BASE cohort)

August 4, 2018 updated by: Ruth Kaufmann, MD, Erasmus Medical Center

Abdominal Wall Repair With Strattice in Germany: a Cohort Study (BASE Cohort)

Incisional hernia is the most frequently seen long term complication in surgery causing much morbidity and even mortality in patients. Despite studies on the optimal closing technique for laparotomies, the risk for incisional hernia after midline incision remains about 5-20%. It has been established that implementing a mesh reduces recurrence of the incisional hernia but still the results of repair are often disappointing. Incisional hernias can become increasingly complex due to complicated abdominal wall defects caused by a disturbed anatomy, fistulas, burst abdomen, wound and mesh infections. In these cases it is not save to repair the incisional hernia by means of a synthetic mesh and other augmentation tools need to be implemented.

In the recent years the use of biological meshes has been gaining popularity. Recent reports of the use of collagen-based prosthesis have suggested that they support new vessel growth, do not excite a significant foreign body reaction, form fewer adhesions, are well incorporated into host tissues with minimal wound contraction, and can be used in grossly contaminated wounds with fewer infective complications. Biologic meshes are harvested from a source tissue and processed for medical use but they vary widely in their processing methods. They include tissues of human or animal origins, both chemically cross-linked and non cross-linked processes, and submucosal, pericardial, or dermal tissue sources. Current studies investigating the effectiveness of these meshes are small and have short periods of follow-up. These shortcomings can be explained to high cost of the meshes and unclear indication when to use a biological mesh.

The aim of this study is to investigate the short and long term effects of the Strattice biological mesh. The investigators will also inquire why a biologic mesh was used and what the direct and indirect costs were.

Study Overview

Status

Status

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

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.

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 (Anticipated)

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.
80

Contacts and Locations

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

Study Locations

  • Germany
      • Berlin, Germany
        • Trauma Hospital Berlin
      • Frankfurt am Main, Germany
        • Johann Wolfgang Goethe-University
      • Hannover, Germany
        • Diakoniekrankenhaus Friederikenstiftung
      • Hausham, Germany
        • Agatharied Hospital
      • München, Germany
        • Klinikum rechts der Isar, Technical University of Munich
      • Wiesbaden, Germany
        • St. Josefs-Hospital Wiesbaden

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

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Patients operated by members of the ROKI group (Arbeitsgruppe für Rekonstruktion komplexer Inzisionaler Hernien); i.e. a group of German hernia surgeons using Strattice for complex abdominal wall surgery. This group of surgeons is willing to share their patient cases with the investigators to achieve more knowledge on this delicate topic.

Description

Inclusion Criteria:

  • Age of 18 years or older
  • Signed informed consent
  • Abdominal wall repair
  • Strattice mesh implantation prior to inclusion in BASE cohort

Exclusion Criteria:

  • Age under 18 years
  • No signed informed consent
  • Other operation than abdominal wall repair
  • Other mesh than Strattice mesh

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

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.
Complex abdominal wall repair Strattice
Procedure: Complex abdominal wall repair Strattice
Not applicable (cross-sectional data from a cohort selected after initial complex abdominal wall surgery with Strattice)
Other Names:
  • Strattice
  • Porcine accelular dermal matrix
  • Non-cross-linked biologic mesh

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
Measure Description
Time Frame
Incisional hernia recurrence
Time Frame: At one year after initial operation
This parameter will be assessed by taking a history of the patient, and performing physical examination.
At one year after initial operation
Postoperative complications
Time Frame: Postoperatively, until one year after initial operation
All postoperative complications and their treatment will be registered.
Postoperatively, until one year after initial operation
Survival
Time Frame: Postoperatively; until three years after initial operation
Any decease postoperatively
Postoperatively; until three years after initial operation

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
EHS incisional hernia classification
Time Frame: Perioperatively (noted just before or just after operation)
Classification according to Ventral Hernia Working Group classification (Breuing et al. Surgery 2010; 148(3): 544-58).
Perioperatively (noted just before or just after operation)
Mesh explantations
Time Frame: Postoperatively; until three years after initial operation
Strattice mesh explantation after operation
Postoperatively; until three years after initial operation
Additional "abdominal wall repair" operations
Time Frame: Postoperatively; until three years after initial operation
Additional "abdominal wall (hernia) repair" operations after initial implantation of Strattice
Postoperatively; until three years after initial operation
Indication of Strattice usage
Time Frame: Perioperatively (noted just before or just after operation)
Defined as preoperative conditions that influenced the decision (for instance: presence of stoma, fistulas, abscesses, etc.)
Perioperatively (noted just before or just after operation)
Quality of Life (questionnaire-based)
Time Frame: Postoperatively; measured at one, two and three years after initial operation
Measured with questionnaires (SF-36, EQ-5D-5L, BIQ)
Postoperatively; measured at one, two and three years after initial operation
Health economic analysis
Time Frame: Postoperatively; until one year after initial operation
Various cost-related parameters
Postoperatively; until one year after initial operation
Incisional hernia recurrence
Time Frame: At two and three years after initial operation
This parameter will be assessed by taking a history of the patient, and performing physical examination.
At two and three years after initial operation

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.
Erasmus Medical Center

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Johann Wolfgang Goethe University Hospital
Technical University of Munich
St. Josefs-Hospital Wiesbaden GmbH
Unfallkrankenhaus Berlin
Diakoniekrankenhaus Friederikenstift
Krankenhaus Agatharied Hausham

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ruth Kaufmann, MD, Erasmus Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
February 1, 2017

Primary Completion (Anticipated)

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.
December 31, 2018

Study Completion (Anticipated)

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.
December 31, 2018

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).
June 12, 2014

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.
June 17, 2014

First Posted (Estimate)

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.
June 20, 2014

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.
August 7, 2018

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.
August 4, 2018

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.
August 1, 2018

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.
  • BASE cohort study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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