Recruiting

Necrosectomy

Sponsor:

Christopher C. Thompson, MD, MSc

Code:

NCT06553651

Conditions

Pancreatic Necrosis

Acute Pancreatitis

Acute Pancreatic Necrosis

Necrosis

Necrosis Pancreas

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Cryotechnology Necrosectomy Procedure

Study Details

Brief summary:

Pancreatic necrosis is a serious complication of acute pancreatitis. Pancreatic necrosis involves the irreversible death of pancreatic tissue, which can lead to severe health issues, including infections and an increased risk of death. An endoscopic procedure called direct endoscopic necrosectomy (DEN) is typically performed to remove this necrotic pancreatic tissue as a minimally invasive treatment. This procedure is performed using a thin, flexible, lighted tube called an endoscope and endoscopic instruments that are used with working channels through the scope. Current methods for removing necrotic tissue involve using endoscopic devices such as snares, baskets, nets, and forceps. However, these standard methods are often not very effective because the necrotic tissue can be sticky and hard to grasp. This DEN procedure is part of regular clinical care to treat this condition and remove necrotic tissue from the pancreas.

For this research study, the same DEN procedure will be followed with the exception of the device used for the removal of the necrotic tissue. Instead of using forceps, snares, or other traditional tools, a cryoprobe will be used. Cryoprobes work by using extremely cold temperatures to freeze and adhere to the necrotic tissue, making it easier to remove. This method might be better because it can secure larger tissue samples and potentially reduce complications associated with traditional methods. Cryotechnology is successfully used in endoscopy to remove necrotic tissue, foreign bodies and more, but has not been extensively tested in pancreatic necrosis. Cryoprobes are FDA approved medical devices with an established safety record. They are used successfully in very sensitive areas such as the lungs. This study aims to evaluate the safety and effectiveness of cryotechnology for DEN.

Conditions

Pancreatic Necrosis

Acute Pancreatitis

Acute Pancreatic Necrosis

Necrosis

Necrosis Pancreas

Study ID

NCT06553651

Start date

Dec, 2026

Status verified date

Jun, 2026

Completion date

Jun, 2029

Anticipated

Primary completion date

Dec, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Subjects aged 18 years and above, inclusive of both males and females.
  • Patients with symptomatic pancreatic necrosis resulting from acute pancreatitis, indicated for endoscopic necrosectomy following endoscopic ultrasound (EUS)-guided drainage.
  • Imaging indicative of ≥30% necrotic material within the pancreas.
  • Walled-off pancreatic necrosis (WOPN) size ≥6 cm.
  • Subjects able to tolerate repeated endoscopic procedures.
  • Capacity for providing informed consent.
  • Understanding of study requirements, provision of written informed consent, and willingness and ability to attend required follow-up assessments through 21 (+/- 7) days.

Exclusion Criteria:

  • Inability to provide informed consent.
  • Unwillingness to undergo repeated endoscopies.
  • Presence of documented Pseudoaneurysm > 1cm within the WOPN.
  • Intervening gastric varices or unavoidable blood vessels within the access tract.
  • Use of dual antiplatelet therapy or therapeutic anticoagulation that cannot be temporarily discontinued.
  • Any condition deemed by the investigator to compromise the safety of undergoing an endoscopic procedure.
  • Pregnancy, lactation, or absence of reliable contraception in women of childbearing potential.
  • Current enrollment in another investigational trial with potential to interfere with this study's endpoint analyses.

Study Design

Enrollment

20 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Cryotechnology Necrosectomy Procedure

Enrolled subjects will undergo direct endoscopic necrosectomy using 1.7 mm single use, flexible cryoprobes, aimed at effectively removing necrotic tissue within the pancreatic cavity.

Interventions

Cryotechnology Necrosectomy Procedure

Subjects undergo necrosectomy with 1.7 mm flexible cryoprobes, either concurrently with stent placement or post-placement, at the Investigator's discretion. The cryoprobe will freeze the necrotic tissue and extracted en-bloc. A maximum of 4 cryotechnology procedures will be performed, with each procedure aiming for significant debris removal and clinical improvement of walled-off pancreatic necrosis (WOPN) symptoms.

Primary outcome measure

  • Technical Success Rate [ Time Frame: Baseline, Follow-up Visit Day 21 ]

Central Contacts and Locations

Central contacts

Locations

Brigham and Women's Hospital

Recruiting

Boston, Massachusetts, United States, 02115

Contacts

Principal Investigator:

Christopher C. Thompson, MD, MSc

More Information

Sponsor

Christopher C. Thompson, MD, MSc

Last update posted

Jun 25, 2026

Last verified

Jun, 2026

Keywords

  • Direct Endoscopic Necrosectomy (DEN)
  • Endoscopic Necrosectomy
  • Pancreatic Necrosectomy
  • Necrosectomy
  • Cryotherapy
  • Cryotechnology

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Christopher C. Thompson, MD, MSc on 2026-06-25.