ClinicalTrials.gg
Not yet recruitingNCT06594718Updated Sep 19, 2024

Endoscopic Treatment of Zenker's Diverticulum (ZENKTUN)

An observational study in Zenker Diverticulum, sponsored by Société Française d'Endoscopie Digestive. Not yet recruiting. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2024-09-19.

Sponsored by Société Française d'Endoscopie Digestive · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
128
Ages
18 Years to 90 Years
Sex
All
01

Study summary

Prospective comparative observational study in numerous reference centers in France, comparing Tunnelization (Z-POEM) versus Non-Tunnelization Techniques according to the usual practices. This is a prospective, comparative, observational, multicenter study with the primary objective of comparing the symptomatic recurrence rate one year after endoscopic tunnelization therapy (Z-POEM) versus non-tunnelization techniques in patients with symptomatic Zenker's diverticulum.

02

Conditions studied

  • Zenker Diverticulum

Keywords

  • Zenker's diverticulum
  • Z-POEM
  • Diverticuloscope
  • Knife Septotomy
  • Clutch Cutter
03

In context

Lead sponsor

Société Française d'Endoscopie Digestive is the lead sponsor of 25 studies on the registry; 5 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patient referred for endoscopic treatment of symptomatic Zenker's diverticulum

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 with symptomatic Zenker's diverticulum (Augsburg score ≥5 )
  • Diagnostic evaluation including esophagogastroduodenoscopy (EGD) and a barium swallow (TOGD) with measurement of the diverticulum's height.
  • Patient aged 18 years or older
  • Patient with ASA 1, ASA 2, ASA 3 status
  • No participation in another concurrent clinical study

Exclusion criteria

Exclusion Criteria:

  • Patient under 18 years old
  • Patient with ASA 4 or ASA 5 status
  • Pregnant woman
  • Patient with coagulation disorders preventing the performance a polypectomy: PT \< 50%, \< 50,000/mm³, ongoing effective anticoagulation, or current clopidogrel use.
  • Patient who has already undergone initial endoscopic or surgical treatment for Zenker's diverticulum
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
128 participants (estimated)
Patient registry
No

Groups and cohorts

  • Endoscopic treatment with (Z-POEM)

    Patients undergoing a peroral endoscopic myotomy using a tunneling method to access the target zone.

    Procedure: Endoscopic diverticulotomy with Z-POEM

  • Endoscopic treatment using a non-tunnelization technique

    Patients undergoing a peroral endoscopic myotomy using a no-tunneling method (Diverticuloscope, Knife Septotomy, and Clutch Cutter) to access the target zone.

    Procedure: Endoscopic diverticulotomy using a non-tunnelization technique

Interventions

  • ProcedureEndoscopic diverticulotomy with Z-POEM

    Endoscopic diverticulotomy with Z-POEM

  • ProcedureEndoscopic diverticulotomy using a non-tunnelization technique

    Endoscopic diverticulotomy with diverticuloscope, Knife Septotomy, or Clutch Cutter

06

What researchers measure

Primary outcomes

  1. Symptomatic recurrence rate after endoscopic tunnelization therapy (Z-POEM) compared to non-tunnelization techniques in patients with symptomatic Zenker's diverticulum.

    Symptomatic recurrence is defined by: Clinical resolution after endoscopic treatment, as assessed clinically at 3 months, with an Augsburg score \<5. Reappearance of clinical symptoms, following clinical resolution after endoscopic treatment, with an Augsburg score ≥5.

    Time frame: 12 months

Secondary outcomes

  1. Clinical success rate after endoscopic treatment.

    Clinical success is assessed using the Augsburg scale, with a score \<5.

    Time frame: 3 months

  2. Variation in Augsburg score at different time points

    comparing the Augsburg scores at each time point with baseline data for each patient.

    Time frame: 3 months, 6 months, 12 months, and 24 months

  3. Complication rate associated with the endoscopic procedure

    Number of patients with at least one of the following complications: Pneumoperitoneum insufflation, Fever during hospitalization (T \> 38.5°C), Post-procedure hemorrhage, Post-procedure antibiotic therapy, Post-procedure scan, Intensive care unit/rehabilitation hospitalization, or Surgery for complications

    Time frame: 15 days

  4. Radiographic resolution rate of the diverticulum

    Radiographic resolution rate of the diverticulum, assessed by a TOGD (barium swallow) at 3 months: Radiographic resolution is defined by a reduction in the diverticulum's volume between the preoperative TOGD and the TOGD at 3 months. The volume is estimated from the millimeter measurements of the diverticulum in its craniocaudal, anteroposterior, and laterolateral dimensions. The definitions are as follows: Complete resolution: Complete disappearance of the diverticulum. Partial resolution: Reduction in diverticular volume of at least 50%. Minor resolution: Reduction in diverticular volume between 20% and 50%. No resolution: Reduction in diverticular volume \< 20%.

    Time frame: 3 months

  5. Symptomatic Recurrence Rate Post-Treatment:

    Number of patients with symptomatic recurrence, defined as the reappearance of clinical symptoms at 3, 6, 12, and 24 months after endoscopic treatment, with an Augsburg score of ≥5.

    Time frame: at 3, 6, 12, and 24 Months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Oct 2024; primary completion for Oct 2028, 48 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 10, 2024
First posted
Sep 19, 2024
StartEst.
Oct 31, 2024
Primary completionEst.
Oct 31, 2028
CompletionEst.
Oct 31, 2028
Last update
Sep 19, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06594718
Lead sponsor
Société Française d'Endoscopie Digestive
Responsible party
Bertrand Brieau (Medical doctor, Principal Investigator, Société Française d'Endoscopie Digestive) — Principal investigator
First posted
Sep 19, 2024
Start date
Oct 31, 2024 (estimated)
Primary completion
Oct 31, 2028 (estimated)
Completion
Oct 31, 2028 (estimated)
Last update
Sep 19, 2024

Study contacts

Bertrand BRIEAU, MD
Contact
bertrand.brieau@gmail.com
+33 650266383
Maira MORENO, PhD
Contact
rechercheclinique@sfed.org
+33 472117513

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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