此页面是自动翻译的,不保证翻译的准确性。请参阅 英文版 对于源文本。

Evaluation of Two Toric Soft Contact Lenses After Two Weeks of Wear

2015年5月5日 更新者:Johnson & Johnson Vision Care, Inc.

Evaluation of Fit and Visual Acuity of the Investigational Toric Lens in Two Phases: Part B: A Dispensing Cross-over Comparison to SofLens66 Toric

The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric contact lens currently available in market, specifically with regards to the comfort and vision after two weeks of use.

研究概览

详细说明

Dispensing, single-masked (subject-masked), randomized, 2-visit controlled study of two-weeks duration.

研究类型

介入性

注册 (实际的)

96

阶段

  • 不适用

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 至 39年 (成人)

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria: Prior to being considered eligible to participate in this study, subjects MUST

  1. be at least 18 and less than or equal to 39 years of age and have a need for vision correction in BOTH eyes (monovision or uniocular fitting is NOT allowed).
  2. be of Asian descent (Japanese, Chinese, Korean, Polynesian or other Asian ancestry) and have Asian Eye anatomy.
  3. have successfully worn toric or spherical soft (hydrogel or silicone hydrogel) contact lenses for at least 4-weeks prior to enrollment in the study.
  4. be able and willing to adhere to the instructions set forth in the protocol.
  5. agree to wear their contact lenses in both eyes on a daily wear schedule for at least 8 hours per day every day during the study.
  6. have a distance spherical component between -1.00 D and -5.50 D with cylinder in the range of 0.75 D to 2.25 D and cylinder axis within 10 ° of the vertical and within 20 ° of the horizontal in both eyes
  7. have a best corrected manifest refraction visual acuity of at least 20/25 or better in each eye.
  8. be in good general health, based on his/her knowledge.
  9. read, be given an explanation of, indicate understanding of, and sign the STATEMENT OF INFORMED CONSENT.

Exclusion Criteria:

  1. The subject is a rigid gas permeable (RGP) or daily disposable soft lens wearer.
  2. The presence of clinically significant (grade 3 or 4) anterior segment abnormalities; inflammations such as iritis; or any infection of the eye, lids, or associated structures.
  3. The presence of ocular or systemic disease or need for medication which might interfere with contact lens wear or which would cause the lenses to be removed more than twice a day. (i.e., Sjögren's syndrome, type II diabetes, etc).
  4. Slit lamp findings that would contraindicate contact lens wear such as:

    • Pathological dry eye or associated findings
    • Pterygium or corneal scars within the visual axis
    • Neovascularization >1mm in from the limbus
    • History of giant papillary conjunctivitis (GPC) worse than Grade 2
    • Anterior uveitis or iritis (past or present)
    • Seborrhoeic eczema, seborrhoeic conjunctivitis
  5. A history of recurrent erosions, corneal infiltrates, corneal ulcer or fungal infections.
  6. A known history of corneal hypoesthesia (reduced corneal sensitivity.)
  7. Aphakia, keratoconus or a highly irregular cornea.
  8. Current pregnancy or lactation (to the best of the subject's knowledge).
  9. Active participation in another clinical study at any time during this study.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:交叉作业
  • 屏蔽:单身的

武器和干预

参与者组/臂
干预/治疗
其他:senofilcon A toric / alphafilcon A toric
senofilcon A toric contact lenses worn daily during the first period, then alphafilcon A toric contact lenses worn daily during the second period
隐形眼镜
其他名称:
  • SofLens66 复曲面
contact lens
其他:alphafilcon A toric / senofilcon A toric
alphafilcon A toric contact lenses worn daily during the first period, then senofilcon A toric contact lenses worn daily during the second period
隐形眼镜
其他名称:
  • SofLens66 复曲面
contact lens

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Subjective Reported Vision
大体时间:1 week
A weighted combined score of one week and two week data calculated from individual vision-related questions asked on a 1-5 scale, 1 = most negative response to 5 = most positive, was used to derive vision outcomes. The analysis shows the outcome for both senofilcon A and alphafilcon A. If score >0 then greater vision, if <0 then lesser vision.
1 week
Subject Reported Lens Comfort.
大体时间:1 week
A weighted combined score of one week and two week data calculated from individual comfort-related questions asked on a 1-5 scale, 1=most negative response to 5=most positive response, was used to derive comfort outcomes. The analysis shows the estimates for senofilcon A and alphafilcon A, respectively. Interpretation is >0 indicates comfortable and <0 indicates uncomfortable.
1 week

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Jason Chin, O.D.
  • 首席研究员:James Fujimoto, O.D.
  • 首席研究员:Dennis Kuwuabara, O.D.、Eye Care Associates of Hawaii
  • 首席研究员:Mark Nakano, O.D.、Mark E. Nakano Optometric Corp.
  • 首席研究员:Kevin Rosin, O.D.、Drs. Farkas, Kassalow, Resnick & Associates
  • 首席研究员:Jennifer Kao, O.D.
  • 首席研究员:Weslie Hamada, O.D.、Arthur T. Kobayashi, O.D., Inc.
  • 首席研究员:Ikuko Sugimoto, O.D.、unaffilliated

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2007年9月1日

初级完成 (实际的)

2007年12月1日

研究完成 (实际的)

2007年12月1日

研究注册日期

首次提交

2007年12月20日

首先提交符合 QC 标准的

2007年12月31日

首次发布 (估计)

2008年1月2日

研究记录更新

最后更新发布 (估计)

2015年5月21日

上次提交的符合 QC 标准的更新

2015年5月5日

最后验证

2015年5月1日

更多信息

与本研究相关的术语

其他相关的 MeSH 术语

其他研究编号

  • CR-0714B

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

alphafilcon 复曲面的临床试验

3
订阅