Endoscopic Mucosal Resection for the Diagnosis of a-Ganglionosis, a Controlled Prospective Trial (EDGE Trial)

Constipation Clinical Trial

— EDGE  

Official title:

Endoscopic Mucosal Resection for the Diagnosis of a-Ganglionosis, a Controlled Prospective Trial (EDGE Trial)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01515501
• Other study ID #: MGH2007p001577
• Status: Completed
• Phase: N/A
• Start date: October 2007
• Est. completion date: August 2018

Study information

• Verified date: August 2018
• Source: Massachusetts General Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Patients undergoing routine rectal suction biopsy will undergo as part of the study an additional Endoscopic mucosal resection. The biopsy results will also be correlated with patient's clinical data including clinical history, Bristol stool scale, anorectal manometry results, and SITZ marker studies. Cost and recovery time will be compared.

Description:

Background: Adult and pediatric patients presenting with chronic constipation and/or motility disorders may be referred for rectal biopsy to rule out aganglionosis or Hirschsprung's disease. The traditional diagnostic test, rectal suction biopsy, is a blind technique and is insensitive in confirming the diagnosis. Frequently, patients require subsequent referral for a surgical full thickness biopsy.

Hypothesis: Endoscopic mucosal resection (EMR) will improve the diagnostic yield for aganglionosis and decrease the need for subsequent surgical full thickness biopsy.

Methods: This is a prospective, single center, controlled investigation of EMR for the diagnosis of colonic aganglionosis / Hirschsprung's disease. Patients who are offered rectal suction biopsy will be offered enrollment. Enrolled patients will have one additional procedure (EMR) at the time of their rectal suction biopsy. Specimens will be analyzed pathologically for size, submucosal tissue adequacy, the presence of ganglionic tissue, and positivity by acetylcholinesterase staining. The adequacy of the tissue specimen, the proportion of diagnostic specimens, and the proportion of patients that would have required subsequent referral for full thickness biopsy, will be compared. Variable such as cost and recovery time will be compared. Biopsy results will be compared with patient's pre-endoscopy clinical data including their history of constipation, results of SITZ marker studies, Bristol stool scale, and anorectal manometry.

Results: The primary outcome variable will be the proportion of patients with a diagnostic specimen in each group. Secondary outcome variables will include the size of the specimen, the presence of ganglionic tissue, the presence of submucosal tissue, and the positivity of the acetylcholinesterase stain. The biopsy results will also be correlated with patient's clinical data including clinical history, Bristol stool scale, anorectal manometry results, and SITZ marker studies. Cost and recovery time will be compared.

Discussion: The proposed investigation may demonstrate that a simple endoscopic test, which uses direct visualization, can improve the diagnostic yield of rectal biopsies for Hirschsprung's disease, and spare patients an additional surgical full thickness rectal biopsy.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 12
• Est. completion date: August 2018
• Est. primary completion date: February 2012
• Accepts healthy volunteers: No
• Gender: All
• Age group: 10 Years and older

Eligibility

Inclusion Criteria:

• 10 years of age or older

• offered Rectal Suction biopsy

Exclusion Criteria:

• any contraindication to general anesthesia or conscious sedation

• contraindication to endoscopy

• untreated or unmanageable coagulopathy

• thrombocytopenia (<50)

• inability to provide informed consent.

Related Conditions & MeSH terms

• Constipation
• Hirschsprung Disease

Intervention

Procedure:
• Endoscopic mucosal resection (EMR)
EMR uses an endoscope to take a tissue sample from the rectum. It is the same type of instrument used in a routine colonoscopy. It is hoped that this procedure will help diagnose Hirschsprung's Disease more often than by recal suction biopsy alone, which can often be unclear and result in more invasive surgery for diagnosis.

Locations

Country	Name	City	State
United States	Massachusetts General Hospital	Boston	Massachusetts

Sponsors (1)

Lead Sponsor	Collaborator
Massachusetts General Hospital

Country where clinical trial is conducted

United States, 

References & Publications (4)

Croffie JM, Davis MM, Faught PR, Corkins MR, Gupta SK, Pfefferkorn MD, Molleston JP, Fitzgerald JF. At what age is a suction rectal biopsy less likely to provide adequate tissue for identification of ganglion cells? J Pediatr Gastroenterol Nutr. 2007 Feb;44(2):198-202. — View Citation

Hirose R, Hirata Y, Yamada T, Kawana T, Taguchi T, Suita S. The simple technique of rectal mucosal biopsy for the diagnosis of Hirschsprung's disease. J Pediatr Surg. 1993 Jul;28(7):942-4. — View Citation

Hurlstone DP, Cross SS, Drew K, Adam I, Shorthouse AJ, Brown S, Sanders DS, Lobo AJ. An evaluation of colorectal endoscopic mucosal resection using high-magnification chromoscopic colonoscopy: a prospective study of 1000 colonoscopies. Endoscopy. 2004 Jun;36(6):491-8. — View Citation

Pini-Prato A, Martucciello G, Jasonni V. Rectal suction biopsy in the diagnosis of intestinal dysganglionoses: 5-year experience with Solo-RBT in 389 patients. J Pediatr Surg. 2006 Jun;41(6):1043-8. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The number of EMR Biopsies that are diagnostic specimens	The adequacy of the tissue specimen, the proportion of diagnostic specimens, and the proportion of patients that would have required subsequent referral for full thickness biopsy, will be compared. Variable such as cost and recovery time will be compared. Biopsy results will be compared with patient's pre-endoscopy clinical data including their history of constipation, results of SITZ marker studies, Bristol stool scale, and anorectal manometry.	One Year