- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT03114059
5 Years Long Term Results After Standalone CyPass-Implantation
Retro- and Prospective Monocentric Study to Evaluate the Safety and Effectiveness of the CyPass Stent 5 Years After Implantation
연구 개요
상세 설명
연구 유형
등록 (실제)
연락처 및 위치
연구 장소
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Mecklenburg/Vorpommern
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Neubrandenburg, Mecklenburg/Vorpommern, 독일, 17036
- Dietrich-Bonhoeffer-Klinikum
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참여기준
자격 기준
공부할 수 있는 나이
- 어린이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- patients who have undergone a standalone cypass implantation at least 3 years ago
- signed inform consent
Exclusion Criteria:
- Patients with too much travel distance between study center and home
- Patients who cannot visit the studycenter due to health problems
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
|---|---|
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standalone CyPass implantation
patients who have undergone a standalone cypass implantation without cataract surgery more than 3 years ago
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Heidelberg Retinal Topography, Visual field, intraocular pressure, medication anamnesis, Retinal Nerve Fibre Layer Thickness, Pachymetry, Sonography, full ophthalmological examination
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Number of Patients That Achieve Target Intraocular Pressure Measured in mmHg
기간: up to 7 years
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The Measurement of the intraocular Pressure is a criterion for the Efficacy of CyPass Stent Procedure (success rate).
The postoperative target pressure of 15 mmHg, 18 mmHg or 21 mmHg (depends on Glaucoma Status) has to be achieved.
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up to 7 years
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Change of Intraocular Pressure in mmHg Preoperatively (at Screening) vs Postoperatively (at Final Examination)
기간: up to 7 years
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The Measurement of the intraocular Pressure change is a criterion for the Efficacy of CyPass Stent Procedure (success rate). The postoperative pressure after 5 to 7 years has to be compared with the preoperative intraocular pressure (in mmHg) The change was calculated only from two time points. (value at the final examination time point minus the value at the preoperative time point |
up to 7 years
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Number of Additional Medication
기간: up to 7 years
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The number of additional Glaucoma medication is another criterion to determine the Efficacy of CyPass Stent Procedure (success rate). Up to 4 different active substance can be used to reduce the pressure. The more substances the patient uses postoperatively the lower is the success after implantation of the CyPass-Stent. The postoperative number of medications after 5 years has to be compared with the preoperative number |
up to 7 years
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Number of Participants With Secondary Glaucoma Procedures
기간: up to 7 years
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To determine the efficacy of CyPass Stent procedure completely the number of secondary glaucoma interventions (surgery/ laser) has to be documented
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up to 7 years
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Number of Participants With Stability of Optic Nerve
기간: up to 7 years
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The Measurement of the optic nerve (HRT) in comparison to the baseline is needed to evaluate the glaucoma damage and to determine the Longterm success rate and the safety of the CyPass- Stent-Procedure. With papillary tomography you can see the changes in the optic nerve head concerning the permanent failures of retinal vessels , measure them very precisely and compare them with the previous findings. |
up to 7 years
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Number of Participants With Stability of the Retinal Nerve Fiber Layer Thickness
기간: up to 7 years
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The comparison of the preoperative and postoperative Status of the Retinal Nerve Fiber Layer Thickness and retinal fundus thickness is another criterion to determine the absolute and relative success.
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up to 7 years
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Number of Participants With Stability of Visual Field
기간: up to 7 years
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The parameter of the Visual Field (Mean Deviation) will be measured to evaluate the Safety of the CyPass-Procedure.
The visual Field shows the progression of glaucoma defects concerning failures in different parts for example in the center or in the periphery of the visual field.
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up to 7 years
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Number of Participants With Stability of Stent Position
기간: up to 7 years
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Determination of Stent Position in the angle will be performed to exclude moving of the Stent.
The stent could change it's position forward into the anterior chamber or backwards in the suprachorioidal space
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up to 7 years
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Number of Participants With Stability of Stent Tissue Interaction
기간: up to 7 years
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Determination of iris tissue reaction to the stent will be performed.
We document slight reaction without involving the opening, iris reaction with involving the opening and complete closure by tissue.
The iris Tissue could overgrow the opening of the stent and therfore the function of the stent is disturbed or even failed.
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up to 7 years
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Number of Participants With Intra-and Postoperative Complications
기간: up to 7 years
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The number of intra-and postoperative complications are needed to evaluate the safety of the CyPass-procedure
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up to 7 years
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Number of Participants With Suprachoroidal Bleb
기간: up to 7 years
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The Determination of the suprachoroidal bleb is needed to evaluate the function of the stent and the efficacy of the procedure.
The bigger the bleb, the lower the pressure and the better the efficacy of the stent
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up to 7 years
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공동 작업자 및 조사자
수사관
- 수석 연구원: Helmut Hoeh, MD,FEBO, Department of Ophthalmology, Neubrandenburg, Germany
간행물 및 유용한 링크
일반 간행물
- Garcia-Feijoo J, Rau M, Grisanti S, Grisanti S, Hoh H, Erb C, Guguchkova P, Ahmed I, Grabner G, Reitsamer H, Shaarawy T, Ianchulev T. Supraciliary Micro-stent Implantation for Open-Angle Glaucoma Failing Topical Therapy: 1-Year Results of a Multicenter Study. Am J Ophthalmol. 2015 Jun;159(6):1075-1081.e1. doi: 10.1016/j.ajo.2015.02.018. Epub 2015 Mar 3.
- Hoeh H, Vold SD, Ahmed IK, Anton A, Rau M, Singh K, Chang DF, Shingleton BJ, Ianchulev T. Initial Clinical Experience With the CyPass Micro-Stent: Safety and Surgical Outcomes of a Novel Supraciliary Microstent. J Glaucoma. 2016 Jan;25(1):106-12. doi: 10.1097/IJG.0000000000000134.
- Grisanti S, Margolina E, Hoeh H, Rau M, Erb C, Kersten-Gomez I, Dick HB, Grisanti S. [Supraciliary microstent for open-angle glaucoma: clinical results of a prospective multicenter study]. Ophthalmologe. 2014 Jun;111(6):548-52. doi: 10.1007/s00347-013-2927-6. German.
- Hoh H, Grisanti S, Grisanti S, Rau M, Ianchulev S. Two-year clinical experience with the CyPass micro-stent: safety and surgical outcomes of a novel supraciliary micro-stent. Klin Monbl Augenheilkd. 2014 Apr;231(4):377-81. doi: 10.1055/s-0034-1368214. Epub 2014 Apr 25.
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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