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Efficacy and Safety of a Covered Self-expandable Dual-layered Metallic Mesh Stent (UVENTA) in Ureteral Obstruction (UVENTA)
The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2013 by HAN, DEOK HYUN, Samsung Medical Center.
Recruitment status was: Recruiting
Recruitment status was: Recruiting
Sponsor:
Samsung Medical Center
Collaborator:
Taewoong Medical Co., Ltd.
Information provided by (Responsible Party):
HAN, DEOK HYUN, Samsung Medical Center
ClinicalTrials.gov Identifier:
NCT01788865
First received: February 7, 2013
Last updated: NA
Last verified: February 2013
History: No changes posted
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Purpose
The purpose of this study is to evaluate Efficacy and Safety of a covered self-expandable dual-layered metallic mesh stent (UVENTA) in ureteral obstruction.
| Condition | Intervention | Phase |
|---|---|---|
| Ureteral Obstruction | Device: cSEMS(Covered self-expandable dual-layered metal stent) implant | Phase 4 |
| Study Type: | Interventional |
| Study Design: | Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment |
| Official Title: | Efficacy and Safety of a Covered Self-expandable Dual-layered Metallic Mesh Stent (UVENTA™) in Ureteral Obstruction: Prospective, Multi-center, Open Label Study |
Further study details as provided by HAN, DEOK HYUN, Samsung Medical Center:
Primary Outcome Measures:
- Primary patency rate [ Time Frame: 12 months ]Rate of Ureter units maintaining patency without interventions after technical success of the primary procedure(Diuretic RI scan: T½ < 20 min)
Secondary Outcome Measures:
- Technical success rate [ Time Frame: 1week, 1 month ]Rate of technical success(each Ureter) resolving the stenosis and passing the contrast medium from the kidney to urinary bladder
- Final patency rate [ Time Frame: 12 months ]Rate of Ureter units maintaining patency without interventions aside from re-stenting(investigational device) after technical success of the primary procedure(Diuretic RI scan: T½ < 20 min)
- Adverse Event [ Time Frame: 1week, 1, 3, 6, 9, 12 months ]Rate of total Adverse Events and Adverse Events relevant to Investigational Device
- Predictive Risk Factors for Primary patency rate [ Time Frame: 12 months ]Age, Sex, type of tumor(benign/malignant), length of stenosis, location of stenosis, UVJ cross, balloon catheterization, etc.
- the primary patency rate among different location of distal stent [ Time Frame: 12 months ]difference of the primary patency between the group of Distal stent located in urinary bladder and ureter
- Ureteral stent symptom questionnaire(USSQ) [ Time Frame: 1, 3, 6, 9, 12 months ]Comparative analysis of USSQ : before procedure and after procedure
| Estimated Enrollment: | 92 |
| Study Start Date: | June 2012 |
| Estimated Study Completion Date: | June 2014 |
| Estimated Primary Completion Date: | June 2014 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: cSEMS
Patients with malignant ureteral obstruction have cSEMS(Covered self-expandable dual-layered metal stent) implant
|
Device: cSEMS(Covered self-expandable dual-layered metal stent) implant
Other Name: UVENTA™ Ureteral Stent, Taewoong medical
|
Detailed Description:
Prospective, Multi-center, open label, single arm Study
-
Treatment
- Covered self-expandable dual-layered metallic mesh Stents(cSEMS) are implanted in patents with malignant ureteral obstruction
-
Follow up
- Assessments including X-ray(KUB), are done 3, 6, 12, 18 and 24 months after the procedure.
- Diuretic RI scan (DTPA, MAG-3) 3, 6, 12 months after the procedure
- Imaging such as IVP(Intravenous Pyelogram), ultrasonogram, CT(Computed Tomogram) are performed at 6 and 12 months.
Eligibility| Ages Eligible for Study: | 20 Years to 80 Years (Adult, Senior) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
Criteria
Inclusion Criteria:
- Patients who voluntarily agree to participation and submitted a written informed consent for this study, and 20~80 years
-
One out of following cases below apply to Patients who have malignant ureteral obstruction or have benign ureteral obstruction without improvement after previous treatment
- Patients who doesn't want to have regular replacement of plastic stent
- Patients who has no improvement of obstruction after plastic stent implant
- Patients who want other Urinary diversion because of stimulatory sign or pain due to plastic stent
- Patients with no previous ureteral metal stenting procedure experience.
- Patients with more than 6 months of life expectancy
- Patients understanding the objective of the study and who are willing to sign a consent
Exclusion Criteria:
- Patients with Urothelial Carcinoma
- Patients with bladder invasion of malignant tumor
- Patients with bladder dysfunction or obstruction of lower urinary tract
- one or more times Recurrent Urinary stone in the last 3 years
- 2 or more times upper urinary tract infection without upper urinary tract obstruction
- Karnofsky scores < 60
- Patients with Bacteriuria
- Inadequate Patient to participate in the study as judged by the investigator
Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01788865
Please refer to this study by its ClinicalTrials.gov identifier: NCT01788865
Contacts
| Contact: Deok Hyun Han, M.D. | 82-2-3410-6431 | deokhyun.han@gmail.com |
Locations
| Korea, Republic of | |
| Asan Medical Center | Recruiting |
| Seoul, Korea, Republic of | |
| Contact: Hyeong keoun Park, M.D. Ph.D, +82-2-3010-3737 hkpark@amc.seoul.kr | |
| Principal Investigator: Hyeongkeun Park, M.D. Ph.D. | |
| Samsung Medical Center | Recruiting |
| Seoul, Korea, Republic of | |
| Contact: Deokhyun Han, M.D. +82-10-9933-5125 deokhyun.han@gmail.com | |
| Principal Investigator: Deokhyun Han, M.D. | |
Sponsors and Collaborators
Samsung Medical Center
Taewoong Medical Co., Ltd.
Investigators
| Principal Investigator: | Deok Hyun Han, M.D. | Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine |
| Principal Investigator: | Hyeong keun Park, M.D. Ph.D. | Department of Urology, Asan Medical Center |
More Information
| Responsible Party: | HAN, DEOK HYUN, Samsung Medical Center |
| ClinicalTrials.gov Identifier: | NCT01788865 History of Changes |
| Other Study ID Numbers: |
URT-001 |
| Study First Received: | February 7, 2013 |
| Last Updated: | February 7, 2013 |
Keywords provided by HAN, DEOK HYUN, Samsung Medical Center:
|
covered Metal stent ureteral obstruction |
Additional relevant MeSH terms:
|
Ureteral Obstruction Ureteral Diseases Urologic Diseases |
ClinicalTrials.gov processed this record on June 23, 2017