Combined Vitrectomy and Femtosecond Laser-assisted Cataract Surgery

October 17, 2022 updated by: Aier School of Ophthalmology, Central South University

Clinical Assessment of Combined Vitrectomy and Femtosecond Laser-assisted Cataract Surgery

Based on the progress of cataract surgery, intraocular lens development, vitreoretinal surgery and anesthesia technology in recent years, the purpose of this study is to develop a new type of more accurate and minimally invasive combined surgery for cataract and fundus diseases, and to evaluate the advantages and value of the surgery as well as related complications, so as to minimize the surgical trauma and obtain faster visual function recovery and better patient comfort. To provide new solutions for the growing demand of eye health care.

Study Overview

Status

Status

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

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.

Detailed Description

To evaluate the efficacy and complications of a new type of minimally invasive femtosecond laser assisted-cataract surgery (FLACS) combined with pars plana vitrectomy (PPV) with two-step anesthesia in the treatment of various common fundus diseases such as rhegmatogenous retinal detachment (RRD), epiretinal membrane (ERM), macular hole (MH), and vitreous opacity, complicated with cataract. It is mainly aimed at the following kinds of common fundus diseases with cataract performing PPV and cataract removal combined with monofocal or premium intraocular lens (IOL) implantation： RRD complicated with cataract: FLACS +PPV + IOL+air; ERM complicated with cataract: FLACS +PPV+IOL + epiretinal membrane peeling + Ozurdex; MH complicated with cataract: FLACS + PPV+ IOL + internal limiting membrane peeling + air; Vitreous opacity with cataract: FLACS + PPV+ IOL.

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 (Anticipated)

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.
100

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.
  • Not Applicable

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Jiasong Yang
  • Phone Number: +8619916531690
  • Email: cammel@qq.com

Study Contact Backup

  • Name: Wensheng Li
  • Phone Number: +8613761975020
  • Email: drlws@qq.com

Study Locations

  • China
      • Shanghai, China, 200000
        • Recruiting
        • Jiasong Yang
        • Contact:
          • Jiasong Yang
          • Phone Number: +8618650424985 18113024536
          • Email: cammel@qq.com
        • Sub-Investigator:
          • Jiasong Yang

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria: clinical diagnosis of following disease

  • RRD with cataract
  • ERM with cataract
  • MH with cataract
  • Vitreous opacity with cataract

Exclusion Criteria: patients with history of following condition

  • intraocular surgery
  • ocular trauma
  • endophthalmitis
  • uveitis
  • glaucoma

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: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

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: RRD group
to evaluate the efficacy and complications of a new minimally invasive vitreoretinal surgery combined with FLACS in the treatment of rhegmatogenous retinal detachment complicated with cataract.
Procedure: FLACS +PPV+IOL + air
The procedures are combined the FLACS +PPV+IOL + air.
Experimental: ERM group
to evaluate the efficacy and complications of a new minimally invasive vitreoretinal surgery combined with FLACS in the treatment of epiretinal membrane complicated with cataract.
Procedure: FLACS +PPV+IOL + epiretinal membrane peeling + Ozurdex
The procedures are combined the FLACS +PPV+IOL + epiretinal membrane peeling + Ozurdex.
Experimental: MH group
to evaluate the efficacy and complications of a new minimally invasive vitreoretinal surgery combined with FLACS in the treatment of macular hole complicated with cataract.
Procedure: FLACS + PPV+IOL + internal limiting membrane peeling + air
The procedures are combined the FLACS + PPV+IOL + internal limiting membrane peeling + air.
Experimental: Vitreous cloudy group
to evaluate the efficacy and complications of a new minimally invasive vitreoretinal surgery combined with FLACS in the treatment of vitreous opacity complicated with cataract.
Procedure: FLACS + PPV+IOL
The procedures are combined the FLACS + PPV+IOL.

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
visual acuity
Time Frame: Change from baseline best-corrected visual acuity at 6 months.
final best-corrected visual acuity
Change from baseline best-corrected visual acuity at 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
complications
Time Frame: through study completion, an average of 6 months.
complications occurred during surgery or post-surgery
through study completion, an average of 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.
Aier School of Ophthalmology, Central South University

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 Chair: Wensheng Li, Aier Ophthalmology School of Central South University; Shanghai Aier Eye Hospital

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 (Actual)

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.
January 1, 2017

Primary Completion (Anticipated)

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.
December 31, 2023

Study Completion (Anticipated)

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.
December 31, 2023

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).
December 8, 2020

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.
October 17, 2022

First Posted (Actual)

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.
October 20, 2022

Study Record Updates

Last Update Posted (Actual)

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.
October 20, 2022

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.
October 17, 2022

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.
October 1, 2022

More Information

Terms related to this study

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.
  • SHIRB2018019

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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