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Esophageal Subepithelial LesionsNCT02282111

EUS-CNB Versus EUS-SINK for Diagnosis of Upper Gastrointestinal (UGI) Subepithelial Tumors

A study testing 22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC) and conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass) in people with Esophageal Subepithelial Lesions, run by Johns Hopkins University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a single-blinded randomized control trial trying to compare the effectiveness of diagnosis between two techniques employed in tissue sampling for subepithelial tumors (SETs) of the gastrointestinal tract. Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Esophageal Subepithelial Lesions
What is being tested?
22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC) and conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
56 participants
Where
1 siteUnited States
Study dates
Jul 2014to Nov 2017
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients referred for EUS evaluation of upper GI SETs measuring an estimated 15mm or greater in maximal diameter.
  • Location of SET: esophagus, stomach, duodenum
  • Age >18 years and older
  • Patient consent obtained

Who cannot join

  • Endoscopically non bulging lesion
  • Upper GI SETs <15 mm in size as measured during study EUS
  • Lesions not necessitating tissue acquisition: i.e. lipomas, varices
  • Cystic lesion
  • Patients < 18 years of age
  • Uncorrectable Coagulopathy (INR >1,5, platelets <100,000)
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  • Patients with stigmata of portal hypertension
  • Patients with post-surgical UGI anatomy (Roux-en-Y gastric bypass, esophagectomy etc)
  • Uncooperative patients
  • Pregnant women (women of childbearing age will undergo urine pregnancy testing, which is routine for all endoscopic procedures)
  • Refusal to consent form

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Johns Hopkins Hospital

    Baltimore, Maryland, 21287

Other trials in United States

About this study

Official title: EUS-guided Core Needle Biopsy (EUS-CNB) Versus EUS-guided Single-incision With Needle Knife (SINK) for the Diagnosis of Upper Gastrointestinal Subepithelial Lesions - a Multicenter Randomized Controlled Trial

This is a single-blinded randomized control trial trying to compare the effectiveness of diagnosis between two techniques employed in tissue sampling for subepithelial tumors (SETs) of the gastrointestinal tract. Over 2 years, patients having SET will be randomized to either get the EUS-guided core needle biopsy (EUS-CNB) or EUS-guided single-incision with needle knife (SINK) technique. This is of grave importance because the diagnosis of the myriad types of SETs is made histologically requiring a good sample.

Read the detailed description

Upper gastrointestinal (GI) subepithelial tumors (SETs) are tumors arising from subepithelial layers of esophageal, gastric or duodenal wall, mostly from the submucosa and muscular layer. The incidence of SETs on routine endoscopy is 0.36% The differential diagnosis of SETs include, though are not limited to: lipoma, leiomyoma, aberrant pancreas, varices, carcinoid, gastrointestinal stromal tumors (GISTs), and lymphomas . Therefore, a correct diagnosis of these tumors is important to guide subsequent management. These lesions are often not accurately diagnosed on cross-sectional imaging . Endoscopic ultrasound (EUS) aids in narrowing the differential diagnosis of the lesion as it is often able to establish the layer of origin . However, an accurate diagnosis and targeted therapy is not made solely on the morphological features but on histologic type and at times mitotic index. Thus the need for techniques to obtain histology is beneficial in guiding management.

Since standard endoscopy with pinch biopsies of the overlying mucosa often fails to provide an adequate sample for analysis, multiple other modalities to sample the lesion have been utilized: EUS-guided fine needle aspiration (EUS-FNA), EUS-guided core needle biopsy (EUS-CNB), bite-on-bite forceps biopsies, EUS-guided single-incision with needle knife (SINK) and endoscopic resection.

EUS-FNA is now considered to be the usual method of sampling; however, the diagnostic yield is low: 38% to 82% . Moreover, EUS-FNA often provides insufficient specimens which may not allow for immunohistochemistry that is often essential for diagnosis . Thus EUS-CNB has been assessed for the purpose of obtaining a core sample which allows for histological assessment. Published data reveals a diagnostic (though not histologic) yield using EUS-CNB of 75% In 2011, the SINK technique for sampling was presented with a reported diagnostic accuracy of 92.8% [8]. The technique utilizes a conventional needle-knife connected to an electrosurgical unit. A 6 to 12-mm mucosal incision is made over the lesion. Then conventional biopsy forceps are introduced to obtain 3-5 samples. Subsequently, the incision is closed with 2 to 3 endoclips.

The purpose of this study is to prospectively compare the efficacy and safety of EUS-CNB with SINK in patients with upper GI SETs. The investigators hypothesis is that the SINK technique will be superior to the EUS-CNB in obtaining a histological specimen. The results of the study would provide data which may improve the diagnostic ability for SETs. This in turn will guide appropriate surveillance or management (surgical or endoscopic) for patients with these lesions.

Being tested
22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC), conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass)

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC)Device

    Using a linear EUS with color and pulsed Doppler to scan the area for vessels, the lesion was then sampled with a 22-gauge beveled needle (using the slow capillary suction and fanning techniques with 5 to 15 to-and-fro movements with each pass). A total of 4 passes were performed and after that, the procedure terminated.

  • conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass)Device

    Using a conventional needle-knife sphincterotome connected to an electrosurgical unit, and under direct endoscopic vision, a 6-12mm linear incision was made from the periphery of the lesion to its highest convexity zone. A conventional biopsy forceps was then deeply introduced through the hole, and 2 bites were obtained per pass. A total of 4 passes were performed by passing the biopsy forceps through the incision on each occasion. The mucosal incision was then closed with endoclips whenever possible.

Study groups in NCT02282111
Study groupRoleWhat they receive
EUS-CNBActive comparatorUsing a linear EUS with color and pulsed Doppler to scan the area for vessels, the lesion was then sampled with a 22-gauge beveled needle (using the slow capillary suction and fanning techniques with 5 to 15 to-and-fro movements with each pass). A total of 4 passes were performed and after that the procedure terminated.
Receives: Device: 22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC)
SINKActive comparatorUsing a conventional needle-knife sphincterotome connected to an electrosurgical unit, and under direct endoscopic vision, a 6-12mm linear incision was made from the periphery of the lesion to its highest convexity zone. A conventional biopsy forceps was then deeply introduced through the hole, and 2 bites were obtained per pass. A total of 4 passes were performed by passing the biopsy forceps through the incision on each occasion. The mucosal incision was then closed with endoclips whenever possible.
Receives: Device: conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Diagnostic Accuracy

    Diagnostic accuracy is defined as the percentage of true positive and true negative biopsy specimens combined divided by total number of specimens

    Measured: 30 days

Secondary outcomes (4)
  1. Histological Yield

    This will be assessed by the percentage of patients whose samples were adequate for histopathological evaluation

    Measured: 30 days

  2. Technical Failure Rate

    Percentage of procedures in whom sampling technique failed to take biopsy specimens

    Measured: 1 day

  3. Time of the Procedure

    Time from the beginning of the incision or needle insertion, to completion of tissue acquisition by the techniques defined in the protocol.

    Measured: Tissue sampling procedure, up to 60 minutes

  4. Percent Sample Contribution to Immunohistochemistry Diagnosis

    Percentage of all samples from participants in whom biopsy specimen was adequate enough to contribute to immunohistochemistry diagnosis

    Measured: 30 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 2014 (estimated)
  2. Study startJul 2014
  3. Primary completionNov 2017
  4. Study completionNov 2017

Why it stopped: Equality of results between the two groups at interim analysis

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02282111
Sponsor's protocol ID
IRB00028905
Status last verified
Oct 2018
First submitted
29 Oct 2014
Last updated
9 Oct 2018
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing 22-gauge Procore needle (ProCore, Cook Medical Inc., Winston-Salem, NC) and conventional needle-knife sphincterotome (Microknife XL; Boston Scientific Inc, Natick, Mass) in people with Esophageal Subepithelial Lesions, run by Johns Hopkins University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 9 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Oct 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Diagnostic Accuracy (time frame: 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Oct 2018.

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