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Peroral Endoscopic Myotomy (POEM) for Esophageal Motility (POEM)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02314741
Recruitment Status : Completed
First Posted : December 11, 2014
Last Update Posted : February 19, 2018
Information provided by (Responsible Party):
University of Pennsylvania

Brief Summary:

The investigators wish to monitor the adoption of a new, incisionless approach to performing a Heller myotomy for the surgical treatment of achalasia. The method, the Peroral Endoscopic Myotomy (POEM), will provide less-invasive treatment for esophageal achalasia, ideally providing similar if not better outcomes (safety and efficacy) as the Heller myotomy. The investigators hope to enroll 10 patients with a clinical diagnosis of achalasia who meet inclusion criteria.

The POEM procedure has been done in many hospitals without any research associated with it. Dr. Ginsberg, Dr. Chandrasekhara and Dr. Kochman will perform the procedures after being trained. Dr. Ginsberg has personally witnessed the performance of 10 POEM procedures and has performed in a swine model. The PI is credentialed to initiate POEM at HUP with the first case to be proctored by an experienced operator. The PI will then proctor the other adopters. The investigators would like to evaluate the safety of it and the effectiveness of it. The investigators will use their symptom scores and radiology tests pre- and post-POEM to evaluate effectiveness.

Condition or disease Intervention/treatment Phase
Achalasia Procedure: POEM Procedure Not Applicable

Detailed Description:
An esophageal motility disorder is when muscular contractions become discoordinated or weak and interfere with movement of food down the esophagus. Some esophageal motility disorders persist long enough to cause severe problems requiring surgical intervention. Achalasia, one subtype of esophageal motility disorder that is a rare disease, can be defined by the esophageal sphincter and muscle unable to relax or dilate. Left untreated, symptoms such as difficulty swallowing, regurgitation, heartburn, and chest pain may easily turn into complications such as severe weight loss, malnutrition, coughing, pulmonary infection, pneumonia, and perforation of the esophagus. Diagnosis of esophageal achalasia can be determined by esophageal manometry and/or barium swallow esophagram. Treatment for achalasia includes balloon dilation, botulinum toxin injection and surgical intervention. Balloon dilation is performed by inserting a balloon through the esophageal sphincter, inflating the balloon, disrupting the esophageal muscle. Botox has also been known to successfully relax spastic muscle contractions of achalasia through direct injection into the esophageal muscle. Unfortunately, each alternative to surgical treatment often requires repeated administration to improve the symptoms of achalasia. Traditional treatment of achalasia has included open abdominal or thoracic surgical procedures to cut valve muscles between the esophagus and stomach (Heller Myotomy). Laparoscopic multi-port Heller myotomies have become the preferred approach, requiring 4 smaller abdominal incisions for placement of laparoscope equipment. Results of this laparoscopic technique have proven that although 2/3 of the patient population was successfully treated, a subset of this group still need repeat surgical procedures or balloon dilation. Recently, single-incision laparoscopic Heller myotomies have produced favorable results, with a single umbilical incision preferential to multiple-incision laparoscopy. We propose adoption of a new, incisionless approach to performing a Heller myotomy for the surgical treatment of achalasia. The method, the Peroral Endoscopic Myotomy (POEM) is expected to provide a less-invasive treatment for esophageal achalasia, ideally providing similar if not better outcomes as the Heller myotomy and can be adopted safely and effectively at Penn Medicine.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 10 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Peroral Endoscopic Myotomy (POEM) for Esophageal Motility in Patients With a Clinical Diagnosis of Achalasia
Study Start Date : May 2014
Actual Primary Completion Date : May 2015
Actual Study Completion Date : May 2015

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Endoscopy

Arm Intervention/treatment
Experimental: POEM Treatment Arm
Patients treated with the POEM (per-oral endoscopic myotomy) procedure.
Procedure: POEM Procedure
The procedure is performed under anesthesia.The procedure involves endoscopic electrosurgical dissection with an Olympus triangular tip knife.The myotomy is usually ~6cm long & averages 8-10cm. After the myotomy is performed the scope is withdrawn & inserted into the lumen to inspect the mucosa, ensure mucosal integrity & confirm easy passage of the endoscope through the LES consistent with an adequate myotomy. The mucosal entry site is usually 2-3cm long, & is closed with 5-10 endoscopic clips. Patients are hospitalized after procedure for observation.The patient is given IV-nutrition until post-operative day 1. An esophagram is obtained. If no loss of mucosal integrity or leak is noted, a liquid diet is started, which is continued for several days before initiating a solid diet.
Other Names:
  • POEM
  • per oral endoscopic myotomy

Primary Outcome Measures :
  1. Gather Standardized Data on Patients with Achalasia Who Have Been Treated with the POEM Procedure [ Time Frame: About 12 months ]
    The primary aim of this study is to assess safety and efficacy in the adoption of the POEM procedure compared to the typical Heller Myotomy used for the treatment of achalasia using standardized methods, including esophageal manometry, pre- and post- procedure barium swallow studies, as well as standardized measures of dysphagia symptoms due to achalasia (the Eckart score), and patient's medical records and self-reported symptoms.

Secondary Outcome Measures :
  1. Pre-Procedure versus Post-Procedure Barium Swallow Results in POEM Patients [ Time Frame: About 6 Months ]
    Assess POEM procedure's efficacy as defined by improvement of barium swallow study and dysphagia symptoms associated with achalasia. Barium swallow study will compare pre- and post-operative esophageal emptying.

  2. Pre-Procedure Versus Post-Procedure Eckart Score Results in POEM Patients [ Time Frame: About 6 Months ]
    Assess POEM procedure's efficacy as defined by improvement of dysphagia symptoms associated with achalasia. Dysphagia improvement will be assessed using a pre- and post-surgical standardized dysphagia scoring system known as an Eckart Score.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age > or = to 18 years of age
  • Clinical diagnosis of achalasia
  • A candidate for Heller myotomy
  • Esophageal manometry and barium esophogram with findings supportive of achalasia diagnosis
  • Women of childbearing potential: negative urine pregnancy test
  • Able to undergo general anesthesia
  • Willing and able to give informed consent

Exclusion Criteria:

  • < 18 years of age
  • Pregnancy
  • Previous mediastinal or esophageal surgery
  • Contraindications for esophagogastroduodenoscopy
  • Presence of malignancy
  • Coagulopathy (INR 1.5)
  • Thrombocytopenia (platelet count < 100K/microliter)
  • ASA Score > Class II
  • History of mental illness
  • Any medical conditions as determined by the PI to be a contraindication to the procedure
  • Unable to give informed consent

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02314741

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United States, Pennsylvania
University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104
Sponsors and Collaborators
University of Pennsylvania
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Principal Investigator: Vinay Chandrasekhara, MD University of Pennsylvania
Principal Investigator: Gregory G Ginsberg, MD University of Pennsylvania
Principal Investigator: Gary W Falk, MD, MS University of Pennsylvania
Principal Investigator: Michael Kochman, MD University of Pennsylvania
Principal Investigator: David C Metz, MD University of Pennsylvania
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Responsible Party: University of Pennsylvania Identifier: NCT02314741    
Other Study ID Numbers: 819130
First Posted: December 11, 2014    Key Record Dates
Last Update Posted: February 19, 2018
Last Verified: February 2018
Keywords provided by University of Pennsylvania:
per oral endoscopic myotomy
Additional relevant MeSH terms:
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Esophageal Achalasia
Esophageal Motility Disorders
Deglutition Disorders
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases