Phase 3
N=269
Clinical Evaluation of a 1-Piece Intraocular Lens
Cataract
Bottom Line
View on ClinicalTrials.gov: NCT01098812 ↗Enrolled (actual)
269
Serious AEs
2.2%
Results posted
Jul 2013
Primary outcome: Primary: Mean Percent Reduction in Cylinder — 32; 75; 76. percentage of reduction in cylinder — p=<0.0001
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 3
- Interventions
- Tecnis ZCB00 IOL (control) (Device); Toric Intraocular lens (Device)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Abbott Medical Optics
- Primary completion
- Oct 2011
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Mean Percent Reduction in Cylinder |
32; 75; 76. | <0.0001 sig |
| SECONDARY Uncorrected Distance Visual Acuity (UCDVA) |
0.16; 0.10; 0.11 | 0.0009 sig |
Summary
The aims of this study are to:
* Demonstrate a reduction in postoperative cylinder compared to results from the control lens
* Demonstrate better uncorrected distance visual acuity compared to the control lens
Eligibility Criteria
Inclusion Criteria
- Minimum 18 years of age
- Cataract for which phacoemulsification extraction and posterior chamber IOL implantation has been planned for both eyes
- Preoperative best corrected distance visual acuity (BCDVA)of 20/40 or worse (Snellen), with or without glare, for each eye
- BCDVA projected to be better than 20/30 following cataract removal and IOL implantation for each eye
- Preoperative keratometric cylinder of 0.75 diopters to 3.62 diopters for each eye (with exception of second eyes with 0.0-0.75 diopters planned to receive non-toric IOL)
- Clear intraocular media other than cataract in both eyes
- Availability, willingness, ability and sufficient cognitive awareness to comply with examination procedures and study visits
- Signed informed consent and HIPAA authorization
Exclusion Criteria
- Requiring IOLs outside spherical power range of +15.0 to +28.0 diopters
- Dilated pupil size less than 5.5 mm or the presence of any pupil abnormalities (non-reactive, fixed pupils, or abnormally shaped pupils)in either eye
- Previous corneal or intraocular surgery in either eye
- Irregular corneal astigmatism in either eye
- Corneal pathology/abnormality potentially affecting topography in either eye
- Corneal abnormalities such as stromal, epithelial or endothelial dystrophies in either eye
- Inability to achieve keratometric stability in either eye for contact lens wearers
- Subjects with diagnosed degenerative visual disorders in either eye(eg., macular degeneration or other retinal disorders) that are predicted to cause future acuity losses to a level of 20/30 or worse
- Subjects with conditions associated with increased risk of zonular rupture, including capsular or zonular abnormalities that may lead to IOL decentration, including pseudoexfoliation, trauma, or posterior capsule defects
- An eccentric anterior capsulorhexis, zonular damage/rupture or capsular tear/rupture during the cataract extraction procedure
- Use of systemic or ocular medications that may affect vision
- Prior, current, or anticipated use during the course of the nine month study of tamsulosin or silodosin (e.g., Flomax, Flomaxtra, Rapaflo)likely to affect dilation or iris structure
- Poorly-controlled diabetes
- Acute, chronic, or uncontrolled systemic disease or illness that would, in the opinion of the investigator, increase the operative risk or confound the outcome(s) of the study (e.g., immunocompromised, connective tissue disease, etc.)
- Uncontrolled ocular hypertension or glaucomatous changes in the retina or visual field in either eye
- Known ocular disease or pathology that may affect visual acuity or that may require surgical intervention during the course of the study (macular degeneration, cystoid macular edema, diabetic retinopathy, etc.)
- Patient is pregnant, plans to become pregnant, is lactating or has another condition associated with the fluctuation of hormones that could lead to refractive changes
- Concurrent participation or participation during 30 days prior to preoperative visit in any other clinical trial
Data sourced from ClinicalTrials.gov (NCT01098812). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.