NCT04138329 is a NA clinical trial of Lichtenstein Technique in Chronic Pain Post-Procedural, sponsored by Hospital Central "Dr. Ignacio Morones Prieto".

Who is sponsoring NCT04138329?

NCT04138329 is sponsored by Hospital Central "Dr. Ignacio Morones Prieto".

What drugs are being tested in NCT04138329?

Interventions in NCT04138329: Lichtenstein Technique, Onstep Technique.

What condition does NCT04138329 study?

NCT04138329 studies Chronic Pain Post-Procedural.

Is NCT04138329 still recruiting?

NCT04138329 is currently completed. Last updated 24 October 2019.

Last reviewed 2019-10-24 · How we verify

NCT04138329

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Comparison of Postoperative Inguinal Pain Between the Onstep Technique and the Lichtenstein Technique

Completed NA Last updated 24 October 2019

What this trial tests

NA trial testing Lichtenstein Technique in Chronic Pain Post-Procedural in 40 participants. Completed in 24 September 2019.

Timeline

15 September 2018

Primary endpoint
24 March 2019

24 September 2019

Quick facts

Lead sponsor	Hospital Central "Dr. Ignacio Morones Prieto"
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	double
Primary purpose	other
Enrollment	40
Start date	15 September 2018
Primary completion	24 March 2019
Estimated completion	24 September 2019
Sites	1 location across Mexico

Drugs / interventions tested

Lichtenstein Technique
Onstep Technique

Conditions studied

Chronic Pain Post-Procedural — all drugs for Chronic Pain Post-Procedural →

Sponsor

Hospital Central "Dr. Ignacio Morones Prieto"

Who can join

16 and older, any sex, with Chronic Pain Post-Procedural. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

This is a randomized, double blind, controlled study. The aim is to compare postoperative inguinal pain using the Inguinal Pain Questionnaire (IPQ) validated in Spanish and Numerical Pain Scale in postoperative patients with Lichtenstein and Onstep technique at 1 week, 1, 3 and 6 months. The investigators also validated the IPQ in spanish. It was randomized 20 patients for the Lichtenstein repair and 20 patients for the Onstep technique. The study was conducted in the General Surgery Department of the Central Hospital Dr. Ignacio Morones Prieto, considered as a second level of attention and a surgery training center. The validated questionnaire in spanish and the visual pain scale were applied in the office at 1 week and by phone at 1 month, 3 and 6 months after surgery by two evaluators who did not know the surgical technique used.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

Postoperative inguinal pain and disability after Lichtenstein versus ONSTEP hernia repair: analysis of responses to the inguinal pain questionnaire in Spanish.
Aguilar-García J, Villafuerte-Fernandez R, Ntezes-Hidalgo PI, Meade-Aguilar JA, et al · · 2021 · cited 4× · PMID 33040236 · DOI 10.1007/s00595-020-02155-8

Verify or expand the search:

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Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT04138329 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Hospital Central "Dr. Ignacio Morones Prieto"
Last refreshed: 24 October 2019

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04138329.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing