Esophageal Squamous Cell Dysplasia Clinical Trial
Official title:
Clinical Study to Evaluate the Safety, Feasibility and Efficacy of the Coldplay CryoBalloon Focal Ablation System for the Cryoablation of Dysplastic Squamous Tissue in Patients With Esophageal Squamous Cell Dysplasia
| NCT number | NCT02605759 |
| Other study ID # | CP-0013 |
| Secondary ID | |
| Status | Completed |
| Phase | N/A |
| First received | |
| Last updated | |
| Start date | March 2016 |
| Est. completion date | January 27, 2018 |
| Verified date | April 2022 |
| Source | Pentax Medical |
| Contact | n/a |
| Is FDA regulated | No |
| Health authority | |
| Study type | Interventional |
To demonstrate the feasibility, safety and efficacy of the CryoBalloon Ablation System for the treatment of esophageal squamous cell dysplasia.
| Status | Completed |
| Enrollment | 80 |
| Est. completion date | January 27, 2018 |
| Est. primary completion date | January 27, 2018 |
| Accepts healthy volunteers | No |
| Gender | All |
| Age group | 18 Years and older |
| Eligibility | Inclusion Criteria: - At least one unstained lesion (USL) in the esophagus upon high resolution endoscopy with Lugol's staining - Flat (type 0-IIb) appearance of the USL - Total area of USLs is a maximum longitudinal size of 6cm and covering a maximum of one-half of the circumference of the esophagus - Proven (by histopathological analysis) medium-grade or high-grade intraepithelial neoplasia (MGIN or HGIN) in at least one USL - Older than 18 years of age at time of consent - Operable per institution's standards - Provides written informed consent on the Ethics Committee-approved informed consent form - Willing and able to comply with study requirements for follow-up Exclusion Criteria: - Esophageal stenosis or stricture preventing advancement of a therapeutic endoscope within 4cm of the treatment zone - Other USLs containing MGIN, HGIN, or ESSC outside the designated treatment area - Any previous ablative therapy in the esophagus (photodynamic therapy, multipolar electrical coagulation, argon plasma coagulation, laser treatment) or any radiation therapy to the esophagus - Any previous esophageal surgery (except anti-reflux surgery) - Any cancer (squamous cell or non-squamous cell) within the previous five (5) years - Active inflammation in the treatment zone due to esophageal reflux, as confirmed by endoscopic examination - Known history of unresolved drug or alcohol dependency that would limit ability to comprehend or follow instructions related to informed consent, post-treatment instructions or follow-up guidelines - Pregnant or planning to become pregnant during the study follow-up period - Life expectancy =2 years |
| Country | Name | City | State |
|---|---|---|---|
| China | Cancer Hospital, Chinese Academy of Medical Sciences | Beijing |
| Lead Sponsor | Collaborator |
|---|---|
| Pentax Medical |
China,
| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Primary | Serious, device-related adverse events | Incidence of serious, device-related adverse events | Day 30 | |
| Primary | Successful, complete ablation of the unstained lesions (USLs) within the treatment area (TA) | The percentage of subjects with successful, complete ablation of the USLs within the TA as determined by the endoscopist at the time of the treatment endoscopy(s) | Day 0 | |
| Primary | Percentage of subjects with absence of ULS containing medium-grade intraepithelial neoplasia (MGIN) or high-grade intraepithelial neoplasia (HGIN) within the original TA | Percentage of subjects with absence of ULS containing medium-grade intraepithelial neoplasia (MGIN) or high-grade intraepithelial neoplasia (HGIN) within the original TA at three (3) months following endoscopic cryoablation. This will be evaluated by visual endoscopic exam and two (2) biopsies negative for squamous epithelial dysplasia confirmed by histopathological analysis | 3 months | |
| Secondary | Absence of USLs containing MGIN, HGIN or cancer | Efficacy defined as the absence of USLs containing MGIN, HGIN or cancer within the original TA after the last endoscopic ablation. | 12 months | |
| Secondary | Complete eradication after one treatment | Percentage of subjects achieving complete eradication after one treatment session with the CryoBalloon Ablation System | 12 months | |
| Secondary | Device performance | Device performance, assessed by Device malfunction | Day 0 | |
| Secondary | Procedure time | Procedure time, defined as the time from the introduction of the endoscope to its removal | Day 0 | |
| Secondary | Adverse Events | Incidence of all treatment-related and serious, non-device related adverse events | 12 Months |