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CompletedNCT03548298ARATUpdated Sep 18, 2019

Antireflux Ablation Therapy (ARAT) for Gastroesophageal Reflux Treatment

An interventional study of ARAT in Gastro Esophageal Reflux, sponsored by Coordinación de Investigación en Salud, Mexico. Completed at 1 site in Mexico. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2019-09-18.

Sponsored by Coordinación de Investigación en Salud, Mexico · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 4 months after the study started (first participant enrolled Jan 2016, registered May 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
95
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
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Study summary

Gastroesophageal Reflux Disease (GERD) is defined as the rise of gastric or gastroduodenal contents above the esophagogastric junction (EGJ), generating symptoms and/or esophageal lesions. It is estimated a failure to treatment with PPI(proton pump inhibitor) between 10%-40% of patients with GERD. The main disadvantages of surgical treatment include perforation (0-4%), bleeding (\<1%) and pneumothorax (0-10%), the most common late complication is gastric fullness, which occurs in almost all patients, approximately 25% of patients may experience persistent dysphagia 3 months after surgery and the most worrisome late complication is the need of a new surgical intervention. The aims of treatment at EGJ is to reduce gastroesophageal reflux contents into the esophagus. Hybrid-APC with ablation of EGJ (ARAT) is a new technique with could generate a scar remodeling this region and consequently reducing reflux disease. Our objective is to evaluate the safety and efficacy of ARAT in a group of patients with GERD without hiatal hernia.

Read the detailed description

Gastroesophageal reflux disease is a condition in which there is a rise of gastroduodenal contents into the esophageal lumen, causing mucosal damage. Among treatments, medications are the most common used ones but up to 10%-40% doesn't respond to this type of treatment. Surgical treatment has been considered as the gold standard; however, with complications such as bleeding, perforation, or dysphagia after surgery. Moreover, not all patients are candidates to receive this type of treatment. Based on these data, new techniques have been explored in order to reduce morbidity, mortality and costs in the treatment of these patients.

Among different endoscopical treatments, ablation of EGJ is a new promising technique which can be used to perform a closure at this level throughout the scar secondary to hybrid-APC treatment, consequently decreasing gastroesophageal reflux. So, the aim of this study is to evaluate safety and efficacy of ARAT in a group of patients with confirmed GERD.

This is a quasi experimental study that will be conducted in a tertiary care center in Mexico city, Mexico. In an endoscopy department at the Mexican Institute of Social Security between January 2018 and July 2019. Those patients diagnosed with gastroesophageal reflux who are candidates and who accept this type of treatment will be evaluated. Patients who meet the inclusion criteria will be the definitive candidates. The risks and benefits of this type of endoscopic treatment will be explained as well as the potential scope of this endoscopic alternative. We will evaluate safety and efficacy of this new procedure.

The technique of the procedure involves ablation of the mucosa of the EGJ using Hybrid-APC (ARAT). The ablation field is initially marked with a Hybrid-APC. Subsequently, saline solution mixed with indigo-carmine is injected at the submucosa level to raise a submucosal bleb, followed by ablation of the mucosa along the lesser curvature. The approximate duration of the procedure is 40min.

Follow-up will include objective evaluation of reflux disease with: upper endoscopy, manometry, pHmetry, reflux questionnaire, and need of PPI (proton-pump inhibitor) dose quantification.

02

Conditions studied

  • Gastro Esophageal Reflux

Keywords

  • GERD, Hybrid-APC, efficacy, safety
  • ARAT
03

In context

Gastroesophageal Reflux

1,086 studies on the registry are indexed under Gastroesophageal Reflux; 187 are open to participants now.

This study's enrollment of 95 is above the median of 72 across 724 interventional studies indexed under Gastroesophageal Reflux.

Browse Gastroesophageal Reflux studies →

Lead sponsor

Coordinación de Investigación en Salud, Mexico is the lead sponsor of 97 studies on the registry; 16 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients of both sexes of age with a diagnosis of GERD and who are under medical treatment and who do not wish to undergo surgical treatment
  • Confirmed diagnosis of GERD in the following way:
  • Positive pHmetry
  • Positive endoscopy (GERD with esophagitis of any degree) or negative
  • Positive symptoms questionnaire for GERD
  • Manometry without evidence of esophageal motor disorder
  • Total or partial response to proton pump inhibitors

Exclusion criteria

Exclusion Criteria:

  • Patients who do not accept the signature of the informed consent
  • Patients previously treated by surgery for GERD
  • Pregnant women.
  • Patients with hiatal hernia greater than 3 cm or Hill type IV
  • Patients with esophageal motility disorders
  • Patients in whom, for any reason, any antireflux surgery or endoscopic treatment has been contraindicated.
  • Patients who want to undergo surgical treatment as an initial option.
  • Patients with portal hypertension and the presence of esophageal varices
  • Patients with hemophilia or a haematological disorder that is difficult to control
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
95 participants (actual)

Study arms

  • Experimental
    GERD without hiatal hernia

    Participants with GERD without hernia hiatal will receive ARAT

    Procedure: ARAT

Interventions

  • ProcedureARAT

    After confirmation of GERD, participants will undergo to ablation with Hybrid-APC (ARAT). Participant will be admitted to hospital 24 hrs before procedure. Technique consist in ablation with hybrid-APC, submucosal injection of saline solution with methylene blue at 3-4 cm from 60-70% cardias and 1 cm esophageal. After procedure they will be kept on surveillance and will be followed-up with clinical, endoscopic, esophageal manometry and pHmetry up to 1 year after procedure.

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What researchers measure

Primary outcomes

  1. Efficacy of ARAT with Hybrid-APC in patients with GERD without hiatal hernia

    The efficacy of this treatment will be defined as: The decrease of ≥ 50 percent of the total percentage of acid exposure at 24 hrs (DeMeester Score)

    Time frame: One year

Secondary outcomes

  1. Safety of ARAT with hybrid-APC in patients with GERD without hiatal hernia

    We will document any adverse event presented during or after application of ARAT therapy

    Time frame: One Year

07

Study locations

1 site
  • Centro Medico Nacional Siglo XXI, Hospital de Especialidades
    Mexico City, 06720, Mexico
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References and documents

Publications

  • Mezerville Cantillo Ld, Cabas Sanchez J, Contreras F, Castellanos Garcia LF, Dondis JE, Galdamez J, Garcia-Maradiaga R, Grullon Dickson F, Jerez Gonzalez LE, Mayo DiBello M, Mejia Rivas MA, Moreno Padilla P, Sanchez Hernandez MA, Velasco SR, Vela MF, Valdovinos-Diaz MA, Remes-Troche JM. [Practice guideline of the Centroamerican and Carribean Association of Gastroenterology and Gastrointestinal Endoscopy for the management of gastroesophageal reflux disease]. Acta Gastroenterol Latinoam. 2014 Jun;44(2):138-53. No abstract available. Spanish. PubMed 25199309 ↗
  • Katz PO, Gerson LB, Vela MF. Guidelines for the diagnosis and management of gastroesophageal reflux disease. Am J Gastroenterol. 2013 Mar;108(3):308-28; quiz 329. doi: 10.1038/ajg.2012.444. Epub 2013 Feb 19. No abstract available. PubMed 23419381 ↗
  • Bolier EA, Kessing BF, Smout AJ, Bredenoord AJ. Systematic review: questionnaires for assessment of gastroesophageal reflux disease. Dis Esophagus. 2015 Feb-Mar;28(2):105-20. doi: 10.1111/dote.12163. Epub 2013 Dec 18. PubMed 24344627 ↗
  • Hansdotter I, Bjor O, Andreasson A, Agreus L, Hellstrom P, Forsberg A, Talley NJ, Vieth M, Wallner B. Hill classification is superior to the axial length of a hiatal hernia for assessment of the mechanical anti-reflux barrier at the gastroesophageal junction. Endosc Int Open. 2016 Mar;4(3):E311-7. doi: 10.1055/s-0042-101021. Epub 2016 Feb 10. PubMed 27004249 ↗
  • Villa N, Vela MF. Impedance-pH testing. Gastroenterol Clin North Am. 2013 Mar;42(1):17-26. doi: 10.1016/j.gtc.2012.11.003. PubMed 23452628 ↗
  • Wileman SM, McCann S, Grant AM, Krukowski ZH, Bruce J. Medical versus surgical management for gastro-oesophageal reflux disease (GORD) in adults. Cochrane Database Syst Rev. 2010 Mar 17;(3):CD003243. doi: 10.1002/14651858.CD003243.pub2. PubMed 20238321 ↗
  • Nabi Z, Reddy DN. Endoscopic Management of Gastroesophageal Reflux Disease: Revisited. Clin Endosc. 2016 Sep;49(5):408-416. doi: 10.5946/ce.2016.133. Epub 2016 Sep 30. PubMed 27744659 ↗
  • Inoue H, Ito H, Ikeda H, Sato C, Sato H, Phalanusitthepha C, Hayee B, Eleftheriadis N, Kudo SE. Anti-reflux mucosectomy for gastroesophageal reflux disease in the absence of hiatus hernia: a pilot study. Ann Gastroenterol. 2014;27(4):346-351. PubMed 25330784 ↗
  • Manner H, Neugebauer A, Scharpf M, Braun K, May A, Ell C, Fend F, Enderle MD. The tissue effect of argon-plasma coagulation with prior submucosal injection (Hybrid-APC) versus standard APC: A randomized ex-vivo study. United European Gastroenterol J. 2014 Oct;2(5):383-90. doi: 10.1177/2050640614544315. PubMed 25360316 ↗
  • Manner H, May A, Kouti I, Pech O, Vieth M, Ell C. Efficacy and safety of Hybrid-APC for the ablation of Barrett's esophagus. Surg Endosc. 2016 Apr;30(4):1364-70. doi: 10.1007/s00464-015-4336-1. Epub 2015 Jun 24. PubMed 26104794 ↗
  • Hernandez Mondragon OV, Zamarripa Mottu RA, Garcia Contreras LF, Gutierrez Aguilar RA, Solorzano Pineda OM, Blanco Velasco G, Murcio Perez E. Clinical feasibility of a new antireflux ablation therapy on gastroesophageal reflux disease (with video). Gastrointest Endosc. 2020 Dec;92(6):1190-1201. doi: 10.1016/j.gie.2020.04.046. Epub 2020 Apr 25. PubMed 32343977 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 18, 2019, 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
NCT03548298
Lead sponsor
Coordinación de Investigación en Salud, Mexico
Responsible party
Sponsor
First posted
Jun 7, 2018
Start date
Jan 10, 2016
Primary completion
Jul 1, 2019
Completion
Sep 10, 2019
Last update
Sep 18, 2019

Study contacts

Oscar V Hernández Mondragón, MD
principal investigator · IMSS

Oversight

Data monitoring committee
Yes
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 2019. You cannot join it, but the record below documents what was studied.

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