Title {1}	Efficacy and safety of endoscopic sleeve gastroplasty versus laparoscopic sleeve gastrectomy in obese subjects with NASH: study protocol for a randomized controlled trial (TESLA-NASH study).
Trial registration {2a and 2b}.	Clinical trials NCT04060368
Protocol version {3}	VERSION 2.0 OF 15TH NOVEMBER 2019
Funding {4}	This study is a non-commercial study.
Author details {5a}	Marqués de Valdecilla Research Institute (IDIVAL), Department of Gastroenterology and Hepatology, Deparment Clinical Pharmacology and Clinical Trials agency-IDIVAL. Hospital Universitario Marqués de Valdecilla.
Name and contact information for the trial sponsor	IDIVAL (Instituto de investigación sanitaria Marques de Valdecilla)
Role of sponsor	The authors declare that they have no competing interests. The study was designed and conceived independently from the funding and sponsor institutions, neither of which had a role in the collection, management, analysis or interpretation of data, or the writing of the final manuscript.