Evaluation of 3 Intraocular Lenses Following Lens Extraction

February 12, 2014 updated by: Bausch & Lomb Incorporated

A Three Arm Prospective Clinical Evaluation of Three FDA Approved Intraocular Lenses Designed to Improve Distance, Intermediate and Near Vision Following Lens Extraction.

The objective of this study is to evaluate the efficacy and subject satisfaction with three different FDA approved lenses for adults over 40 years of age who desire a reduction in spectacle dependence.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
78

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Aliso Viejo, California, United States, 92656
        • Bausch & Lomb, Inc

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects must have a clinically documented diagnosis of age-related bilateral cataracts that are considered amenable to treatment with standard phacoemulsification cataract extraction.
  • Subjects must require a spherical lens power from 10.00 D to 33.00 D
  • Subjects must have the potential for corrected distance visual acuity (CDVA) of 20/32 or better in both eyes, as documented by a Potential Acuity Meter

Exclusion Criteria:

  • Subjects with conditions with increased risk of zonular rupture, such as pseudoexfoliation syndrome. Zonular rupture during cataract surgery may affect postoperative centration, tilt, and stability of the lens.
  • Subjects who have any active inflammation or edema (swelling) of the cornea, including but not limited to the following: keratitis, keratoconjunctivitis, and keratouveitis.
  • Subjects with visually significant diabetic retinopathy (proliferative or non-proliferative) which reduces potential acuity to 20/32 or worse.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: Crystalens AO
Eligible subjects to undergo small incision cataract surgery and were implanted with the Crystalens AO bilaterally.
Device: Crystalens AO
Crystalens AO surgically implanted bilaterally. Study observation up to 180 days.
ACTIVE_COMPARATOR: ReSTOR
Eligible subjects to undergo small incision cataract surgery and were implanted with the ReSTOR IOL bilaterally.
Device: ReSTOR
ReSTOR surgically implanted bilaterally. Study observation up to 180 days.
ACTIVE_COMPARATOR: Tecnis Multifocal IOL
Eligible subjects to undergo small incision cataract surgery and were implanted with the Tecnis Multifocal IOL bilaterally.
Device: Tecnis Multifocal IOL
Tecnis surgically implanted bilaterally. Study observation up to 180 days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mesopic Monocular Contrast Sensitivity Without Glare 1.5 and 3 Cycles/Degree
Time Frame: Postoperative visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity Without Glare 6 Cycles/Degree
Time Frame: Postoperative visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity Without Glare 12 Cycles/Degree
Time Frame: Postoperative visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity Without Glare 18 Cycles/Degree
Time Frame: Postoperative visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity Without Glare 1.5 Cycles/Degree
Time Frame: Postoperative visit 4 ( 4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 4 ( 4-6 months)
Mesopic Monocular Contrast Sensitivity Without Glare 3 Cycles/Degree
Time Frame: Postoperative visit 4 ( 4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 4 ( 4-6 months)
Mesopic Monocular Contrast Sensitivity Without Glare 6 Cycles/Degree
Time Frame: Postoperative visit 4 ( 4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 4 ( 4-6 months)
Mesopic Monocular Contrast Sensitivity Without Glare 12 Cycles/Degree
Time Frame: Postoperative visit 4 ( 4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 4 ( 4-6 months)
Mesopic Monocular Contrast Sensitivity Without Glare 18 Cycles/Degree
Time Frame: Postoperative visit 4 ( 4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Postoperative visit 4 ( 4-6 months)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Binocular Mesopic Contrast Sensitivity Without Glare 1.5 & 3 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Binocular Mesopic Contrast Sensitivity Without Glare 6 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Binocular Mesopic Contrast Sensitivity Without Glare 12 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Binocular Mesopic Contrast Sensitivity Without Glare 18 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Binocular Mesopic Contrast Sensitivity Without Glare 1.5, 3, 6 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Binocular Mesopic Contrast Sensitivity Without Glare 12 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Binocular Mesopic Contrast Sensitivity Without Glare 18 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) without glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Monocular Contrast Sensitivity With Glare 1.5 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity With Glare 3 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity With Glare 6 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity With Glare 12 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity With Glare 18 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Monocular Contrast Sensitivity With Glare 1.5 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Monocular Contrast Sensitivity With Glare 3 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Monocular Contrast Sensitivity With Glare 6 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Monocular Contrast Sensitivity With Glare 12 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Monocular Contrast Sensitivity With Glare 18 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Binocular Contrast Sensitivity With Glare 1.5, 3 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Binocular Contrast Sensitivity With Glare 6 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Binocular Contrast Sensitivity With Glare 12 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Binocular Contrast Sensitivity With Glare 18 Cycles/Degree
Time Frame: Visit 3 (2-3 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 3 (2-3 months)
Mesopic Binocular Contrast Sensitivity With Glare 1.5, 3 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Binocular Contrast Sensitivity With Glare 6 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Binocular Contrast Sensitivity With Glare 12 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Mesopic Binocular Contrast Sensitivity With Glare 18 Cycles/Degree
Time Frame: Visit 4 (4-6 months)
Logarithm of the mesopic (low light) contrast sensitivity (ability to detect detail with subtle gradations of grayness between test target and background) with glare at five spatial frequencies (number of light and dark bars per cycle). A higher mean indicates improved contrast sensitivity
Visit 4 (4-6 months)
Optical Scatter
Time Frame: Visit 3 (2-3 months)
Objective scatter index (OSI) was assessed using the Optical Quality Analysis System(OQAS) and summarized as a continuous variable. For this assessment, an OSI score of 1 or less represents good quality vision, 1-2 indicates some degradation but otherwise normal vision, 2-3 significant light scatter possibly requiring treatment, and scores over 4 severely compromised vision requiring intervention.
Visit 3 (2-3 months)
Optical Scatter
Time Frame: Visit 4 (4-6 months)
Objective scatter index (OSI) was assessed using the Optical Quality Analysis System(OQAS) and summarized as a continuous variable. For this assessment, an OSI score of 1 or less represents good quality vision, 1-2 indicates some degradation but otherwise normal vision, 2-3 significant light scatter possibly requiring treatment, and scores over 4 severely compromised vision requiring intervention.
Visit 4 (4-6 months)
Monocular Halo and Starburst
Time Frame: Visit 3 (2-3 months)
Halo and starburst (both monocular and binocular) were measured using a glarometer on integer scales of 1-5, where the smaller the number the better the outcome.
Visit 3 (2-3 months)
Monocular Halo and Starburst
Time Frame: Visit 4 (4-6 months)
Halo and starburst (both monocular and binocular) were measured using a glarometer on integer scales of 1-5, where the smaller the number the better the outcome.
Visit 4 (4-6 months)
Binocular Halo and Starburst
Time Frame: Visit 3 (2-3 months)
Halo and starburst (both monocular and binocular) were measured using a glarometer on integer scales of 1-5, where the smaller the number the better the outcome.
Visit 3 (2-3 months)
Binocular Halo and Starburst
Time Frame: Visit 4 (4-6 months)
Halo and starburst (both monocular and binocular) were measured using a glarometer on integer scales of 1-5, where the smaller the number the better the outcome.
Visit 4 (4-6 months)
Manifest Refraction
Time Frame: Visit 3 (2-3 Months)
Manifest refraction spherical equivalent (MRSE) was calculated as the value of the sphere plus one-half of the value of the cylinder.
Visit 3 (2-3 Months)
Manifest Refraction
Time Frame: Visit 4 (4-6 Months)
Manifest refraction spherical equivalent (MRSE) was calculated as the value of the sphere plus one-half of the value of the cylinder.
Visit 4 (4-6 Months)
Uncorrected Distance Visual Acuity
Time Frame: Visit 3 (2-3 months) Visit 4 (4-6 months)
High Contrast Uncorrected Distance (UCDVA) measured at 32 inches, Intermediate (UCIVA) at 32 inches, and Near Visual Acuity (UCNVA) at 16 inches
Visit 3 (2-3 months) Visit 4 (4-6 months)
Best-corrected Distance Visual Acuity
Time Frame: Visit 3 (2-3 months) Visit 4 (4-6 months)
High Contrast Distance-Corrected Distance,(BCDVA), Intermediate (DCIVA), and Near Visual Acuity (DCNVA)
Visit 3 (2-3 months) Visit 4 (4-6 months)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Bausch & Lomb Incorporated

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Omid Khodai, OD, RAC, Bausch & Lomb Incorporated

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2010

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2012

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 11, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 12, 2010

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 13, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 28, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 12, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 651 (CHM)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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