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CompletedNCT03674801OESOFAREUpdated Mar 17, 2025

Status of Superficial Esophageal Cancers Treated by Endoscopy "OESOFARE"

An observational study in Superficial Esophageal Cancers, sponsored by Nantes University Hospital. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-03-17.

Sponsored by Nantes University Hospital · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
151
Ages
18 Years and older
Sex
All
01

Study summary

In 2013, esophageal cancer was the 9th cause of cancer in the world and the 6th in terms of cancer mortality. The prognosis of this cancer varies according to geographical areas, but in Europe and the USA, the 5-year survival rate has risen from less than 5% in the 1960s to around 20% in the 2000s. In the United States, however, the survival rate has risen from 5% in the 1960s to around 20% in the 2000s.

Increased the detection of premalignant lesions and early stages may improve prognosis. The presence of esophageal cancer is determined by endoscopy, biopsy and histological confirmation. However, endoscopic techniques (mucosectomy and sub mucosal dissection) are also used as curative treatment for early esophageal lesions.

Now, due to the low number of diagnoses of esophageal tumours at the superficial stage, few studies are available in Europe on the efficacy of these endoscopic techniques and on the complications resulting from their use. Similarly, little is known about the complications of endoscopic techniques and about therapeutic strategies for managing these superficial lesions. In particular, no data are available concerning the adequacy between the treatment proposed in multidisciplinary consultation meetings and the actual management of patients.

Our study is therefore fundamental to make an inventory of superficial esophageal cancers treated by endoscopy, and their management

Read the detailed description

This fundamental study will therefore best describe current French practices for the management strategy of esophageal cancers after endoscopic treatment. Consequently, the interests of this study, national inventory, are multiple:

  1. List a significant number of endoscopic treatments. In particular, by sub mucosal dissection in France, in order to strengthen scientific evidence of its efficacy, to assess its feasibility and complication rate.
  2. Describe the therapeutic strategies currently in place during endoscopic treatment,
  3. Evaluate the adequacy between the proposed upstream management of the endoscopic procedure by SCP and the actual management.
02

Conditions studied

  • Superficial Esophageal Cancers

Keywords

  • Superficial esophageal cancer
  • Endoscopic mucosectomy
  • Submucosal dissection
  • therapeutic strategy
03

In context

Esophageal Neoplasms

1,593 studies on the registry are indexed under Esophageal Neoplasms; 460 are open to participants now.

This study's enrollment of 151 is below the median of 200 across 340 observational studies indexed under Esophageal Neoplasms.

Browse Esophageal Neoplasms studies →

Lead sponsor

Nantes University Hospital is the lead sponsor of 825 studies on the registry; 195 are open to participants now.

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

04

Who can participate

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

Study population

The investigator will propose the study to any patient with esophageal cancer (adenocarcinoma or squamous cell carcinoma) or histologically proven high grade dysplasia and having an endoscopy for endoscopic resection of his oesophageal cancer or dysplasia. At least 100 patients will be included in the study

Inclusion criteria

  • Male or female over 18 years of age
  • Patient with histologically proven high-grade esophageal cancer (adenocarcinoma or squamous cell carcinoma) or dysplasia
  • Patient with digestive endoscopy for endoscopic resection (mucosectomy or submucosal dissection) of a cancerous lesion (adenocarcinoma or squamous cell carcinoma) of the esophagus or high-grade dysplasia.
  • Patient who received the study briefing note and agreed to participate

Exclusion criteria

Exclusion Criteria:

  • Failure to perform the endoscopic procedure
  • Patient under guardianship or guardianship or under judicial safeguard measure
  • Pregnant woman
  • Patient with prior treatment for esophageal cancer.
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
151 participants (actual)
Target follow-up
3 Years
Patient registry
Yes
06

What researchers measure

Primary outcomes

  1. Percentage of different managements according to the described method : The Paris endoscopic classification of superficial neoplastic lesions: esophagus, stomach, and colon (Gastrointest. Endosc. 58, S3-43 (2003)

    In this visit we noted the management by type and histological classification of superficial esophageal tumours

    Time frame: at the endoscopic resection procedure

Secondary outcomes

  1. Adequacy between the proposed management before the endoscopic procedure and the actual management

    Percentage of adequacy between the proposed management before the endoscopic procedure and the actual management, defined by the respect of the envisaged strategy and timing

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  2. Percentage of complete resection R0 after endoscopic treatment

    Percentage of complete resection R0 after endoscopic treatment

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  3. Percentage of patients with endoscopic complication per procedure and/or delayed

    Percentage of patients with endoscopic complication per procedure (esophageal perforation, bleeding) and/or delayed (delayed bleeding, esophageal stenosis)

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  4. Percentage of patients treated with mucosectomy or submucosal dissection

    Percentage of patients treated with mucosectomy or submucosal dissection

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  5. Number of patients having, in the month following the complementary treatment, an adverse effect

    Number of patients having, in the month following the complementary treatment, an adverse effect such as fever, haemorrhage, retrosternal pain, food blockages or weight loss

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  6. Number of patients with a recurrence of cancerous lesion at the initial resection site or at a distance, histologically proven

    Number of patients with a recurrence of cancerous lesion at the initial resection site or at a distance, histologically proven, during follow-up consultations at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months post treatment.

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  7. Number of patients with recurrence having had a simple monitoring (= therapeutic abstention), endoscopic re-treatment, surgery or radiochemotherapy

    Number of patients with recurrence having had a simple monitoring, endoscopic re-treatment, surgery or radiochemotherapy

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  8. "Esophageal Symptoms" questionnaire

    Esophageal Symptoms questionnaires will be filled by the physician at each visit

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

  9. "SF36" questionnaire

    "SF36" questionnaires will be filled by the physician at each visit

    Time frame: at 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months

07

Study locations

1 site
  • CHU Nantes
    Nantes, 44000, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 17, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03674801
Lead sponsor
Nantes University Hospital
Responsible party
Sponsor
First posted
Sep 18, 2018
Start date
Feb 26, 2019
Primary completion
Feb 26, 2022
Completion
Feb 26, 2025
Last update
Mar 17, 2025

Oversight

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

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This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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