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CompletedNCT04961346Updated Jul 23, 2021

RCT Comparing Lightweight vs. Heavyweight Meshes in Incisional Hernia Repair

An interventional study of Ultrapro® mesh and Premilene® mesh in Incisional Hernia, sponsored by RWTH Aachen University. Completed at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-07-23.

Sponsored by RWTH Aachen University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 16 years 9 months after the study started (first participant enrolled Sep 2004, registered Jun 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
188
Allocation
Randomized
Ages
18 Years and older
01

Study summary

In this randomized, controlled, prospective multicentre clinical trial with a parallel group design a large-pore, lightweight polypropylene mesh (Ultrapro®) is compared to a small-pore, heavyweight polypropylene mesh (Premilene®), within a standardized, retromuscular mesh augmentation to identify the superiority of the lightweight mesh. Included patients are examined at five scheduled follow-up visits (5 and 21 days, 4, 12 and 24 months after surgery). The primary outcome criterion is foreign body sensation 12 month after surgery. Further secondary endpoint criteria are the occurrence of haematoma or haematoma requiring surgery at the 5-day visit, seroma, wound infection, and chronic pain within 24 months postoperatively. Quality of life was investigated by the SF-36®.

02

Conditions studied

  • Incisional Hernia
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In context

Hernia

1,096 studies on the registry are indexed under Hernia; 132 are open to participants now.

This study's enrollment of 188 is above the median of 80 across 739 interventional studies indexed under Hernia.

Browse Hernia studies →

Lead sponsor

RWTH Aachen University is the lead sponsor of 228 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Accepts healthy volunteers
No

Inclusion criteria

  • fascial defect after vertical midline laparotomy with a minimum of 4 cm in diameter

Exclusion criteria

Exclusion Criteria:

  • hernia of other location
  • recurrent hernia
  • incarcerated hernia
  • emergency surgery
  • patients with a malignancy or chemotherapy within the last 3 months
  • pregnancy
  • participation in other studies
  • patients with a wound infection
  • missing informed consent
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
188 participants (actual)

Study arms

  • Experimental
    Ultrapro®

    Participants received incisional hernia repair with an Ultrapro mesh in a sublay technique.

    Device: Ultrapro® mesh

  • Experimental
    Premilene®

    Participants received incisional hernia repair with a Premilene mesh in a sublay technique.

    Device: Premilene® mesh

Interventions

  • DeviceUltrapro® mesh

    large-pore, lightweight polypropylene mesh

  • DevicePremilene® mesh

    small-pore, heavyweight polypropylene mesh

06

What researchers measure

Primary outcomes

  1. foreign body sensation

    Quality of life measurement based on the occurrence of a foreign body sensation for more than 3 months within 12 month after surgery.

    Time frame: 12 month after surgery

Secondary outcomes

  1. postoperative seroma

    Fluid collection in the wound area

    Time frame: 24 month

  2. wound infection

    Clinical identification of superficial and deep wound infections.

    Time frame: 24 month

  3. haematoma

    hematoma in the wound area

    Time frame: 5 days

  4. hematoma requiring surgery

    hematoma in the wound area requiring surgery

    Time frame: 5 days

  5. chronic pain

    Chronic pain is defined as pain sensations that persist for more than 3 months after surgery. A Visual Analog Scale (VAS) with a range of 0-10 is used as a tool to measure pain.

    Time frame: 24 month

  6. hernia recurrence

    hernia recurrence is defined as a new abdominal wall defect in the area of surgery

    Time frame: 24 month

07

Study locations

1 site
  • Department of Surgery, University Hospital Aachen
    Aachen, NRW 52074, Germany
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 23, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04961346
Lead sponsor
RWTH Aachen University
Responsible party
Andreas Kroh, MD (Principal Investigator, RWTH Aachen University) — Principal investigator
First posted
Jul 14, 2021
Start date
Sep 2004
Primary completion
Jun 2007
Completion
Jun 2009
Last update
Jul 23, 2021

Study contacts

Ralf D Hilgers, Professor
principal investigator · Institute for Medical Statistics, RWTH Aachen University Hospital, Aachen, Germany

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2021. You cannot join it, but the record below documents what was studied.

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