NCT06165133

Brief Summary

TIGER is a multicentre, 2-arm, parallel group, assessor blinded, non-inferiority randomised controlled trial with an internal pilot to assess if non-surgeon physicians (NSPs) can effectively perform mesh inguinal hernia repair compared to fully trained surgeons in adult patients with non-complicated inguinal hernia.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,782

participants targeted

Target at P75+ for not_applicable

Timeline
1mo left

Started Jun 2024

Typical duration for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress93%
Jun 2024Jun 2026

First Submitted

Initial submission to the registry

December 1, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 11, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

June 1, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Last Updated

May 30, 2024

Status Verified

May 1, 2024

Enrollment Period

2 years

First QC Date

December 1, 2023

Last Update Submit

May 29, 2024

Conditions

Keywords

surgeryglobal surgeryinguinal hernia

Outcome Measures

Primary Outcomes (1)

  • Safety 90 days after surgery, defined by the absence of surgical site infection (SSI), reoperation or recurrence

    SSI will be defined as per CDC criteria within 90 days of inguinal hernia repair SSI after surgery will be defined according to CDC criteria. The following CDC definition will be used to identify deep incisional or superficial SSIs: Infection must occur within 30-days of the index operation AND Infection must involve the skin, subcutaneous, muscular or fascial layers of the incision AND Patient must have at least one of the following: Purulent drainage from the wound Organisms detected from a wound swab Wound opened spontaneously or by a clinician AND, at the surgical wound, the patient has at least one of: pain or tenderness; localised swelling; redness; heat; systemic fever (\>38°C) Diagnosis of SSI by a clinician or radiological imaging Reoperation will be defined as any surgical complication requiring reoperation in theatre within 90 days of inguinal hernia repair. Recurrence will be defined as in the Reinforcement of Closure of Stoma Site (ROCSS) Trial.

    90 days post-op

Secondary Outcomes (10)

  • Surgical site infection

    30 and 90 days after surgery

  • Reoperation

    30 and 90 days after surgery

  • Recurrence

    90 days and 1 year after surgery

  • Quality of life (assessed using Abdominal Hernia-Q)

    1 year after surgery

  • Chronic postoperative inguinal pain after surgery using the Faces Pain Scale - Revised (FPS-R) score

    90 days and 1 year after surgery

  • +5 more secondary outcomes

Study Arms (2)

Non-Surgeon Physician

EXPERIMENTAL

The intervention arm is a mesh inguinal hernia repair performed by a non-surgeon physician (NSP). These are medical officers who have finished a 2-year mandatory house job. The medical officers will be trained to perform inguinal hernia repair by a certified surgical trainer in Ghana.

Other: Mesh inguinal hernia repair performed by Non-Surgeon Physicians (NSP)

Control: Surgeon

PLACEBO COMPARATOR

The control is a mesh inguinal hernia repair performed by a fully trained surgeon, defined as one who is accredited as fully trained with the Ghana College of Physicians and Surgeons, West African College of Surgeons, or equivalent. A trained surgeon will be assisted by an NSP who has completed the TIGER training programme. We anticipate that at least 5-10 fully trained surgeons will take part in the control arm.

Other: Mesh inguinal hernia repair performed by fully trained surgeons

Interventions

Mesh inguinal hernia repair performed by Non-Surgeon Physicians (NSP) through an accredited training programme prior to commencing participation in the study

Non-Surgeon Physician

Mesh inguinal hernia repair performed by fully trained surgeons, recognised by the Ghana College of Surgeons and Physicians and other recognised Surgical Colleges around the globe.

Control: Surgeon

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Patients older than \<18 years\> (male or female) and less or equal to 60 years
  • Primary inguinal hernia (unilateral) eligible for elective inguinal hernia repair
  • Primary bilateral, but only one side being repaired
  • Written informed consent of patient (signature or a fingerprint)

You may not qualify if:

  • Complex inguinal hernias: recurrent, obstructive, or femoral hernias
  • Bilateral inguinal hernias undergoing simultaneous repair
  • Inguinal hernias needing emergent surgical repair (e.g., incarcerated)
  • Patient unable to complete post-operative follow-up

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hernia, Inguinal

Condition Hierarchy (Ancestors)

Hernia, AbdominalHerniaPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Aneel Bhangu

    University of Birmingham

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The primary outcome assessment 90 days after surgery will be performed by a trained member of the research team who will not have access to the patient's hospital records or notes. If additional data needs to be retrospectively retrieved from hospital notes relating to a patient's secondary outcomes, then this may be accessed by any member of the research staff at that hospital (blinded or unblinded). The operating surgeon and patient are impossible to blind, as the patient will meet the surgeon on the day of surgery and introduce themselves. It is unethical and impractical not to tell a patient who is doing their surgery.
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Multicentre, 2-arm, parallel group, assessor blinded, non-inferiority randomised controlled trial with an internal pilot.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 1, 2023

First Posted

December 11, 2023

Study Start

June 1, 2024

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

June 30, 2026

Last Updated

May 30, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Hospital-level data will not be released or published. Country-level analyses will only be conducted with permission of lead investigators from each participating country. Local investigators may access their data across their country to perform country-level analyses (all participating hospitals should consent to their data being used in this way).