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Glaucoma Open-AngleNCT04381611

INTEGRAL Study: A Longitudinal Study of Surgeries and Lasers in Glaucoma: Long-term Results and Success Predictors Analysed From a Large-scale Retrospective and Prospective Glaucoma Register

An observational study of Glaucoma Open-Angle and Glaucoma Eye, run by Dr. Kaweh Mansouri at 1 site in Switzerland.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The study is an observational analysis of patients' medical data recorded in a large-scale register, both retrospective (for patients operated and data recorded before 2018) and prospective (for data collected after 2018) in nature.Patients' medical data contained in the register will be analysed to determine the… Read more about this study

Who is it for?
Ages 1 year to 100 yearsHealthy volunteers can take part
Conditions the study is for
Glaucoma Open-Angle, Glaucoma Eye, Glaucoma; Drugs
How many people
30,000 participants
Where
1 siteSwitzerland
Study dates
15 Jan 2019to 15 Jan 2030
How long will I take part?
10 Years
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 year to 100 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: Any patient suffering or suspected of glaucoma and treated at Montchoisi Clinic

Who may be able to join

  • Diagnosis of glaucoma (open-angle, closed-angle, primary or secondary) or ocular hypertension (IOP > 24 mmHg, medicated or not)
  • Patients who received treatment (medical, laser or surgical) at the Glaucoma Centre, Montchoisi Clinic
  • Able and willing to provide informed written or verbal consent

Who cannot join

  • Patient who are unable to understand the implications of their inclusion in the study or who are unable or unwilling to give informed consent

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Switzerland1 site
  • SwissVisio Montchoisi

    Lausanne, Canton of Vaud, 1006

Other trials in Switzerland

About this study

The study is an observational analysis of patients' medical data recorded in a large-scale register, both retrospective (for patients operated and data recorded before 2018) and prospective (for data collected after 2018) in nature.Patients' medical data contained in the register will be analysed to determine the efficacy of the treatments they received during their follow-up at the investigation centre.

Read the detailed description

This study involves the creation and analysis of a large-scale register including all patients suffering from glaucoma, currently and previously followed-up and treated at a single tertiary centre in Lausanne, Switzerland. The design of the study is longitudinal, observational and comparative. Patients are recruited retrospectively if they attended the research centre before September 2018, and prospectively if they attend the centre from this month onwards. Their inclusion does not affect their care, treatment choice or follow-up. All data of recruited patients is be kept in their medical notes until a specific analysis is launched. Data is then exported from their medical notes into a coded database for analysis. At the end of each analysis session (defined as the publication of the related article), all exported data is fully anonymised.

Data analysis will aim to assess the long-term efficacy, safety profile, and factors predictive of success/failure of treatments performed.

To ensure the quality of all included data, health-related information will be extracted directly from the medical notes and coded into the register by a Clinical Research Associate. Conformity of the process and recorded data will be confirmed by regular internal auditing. For quality assurance the Ethics Committee may visit the research sites. Direct access to the source data and all project related files and documents must be granted on such occasions.

Medical subject headings
Glaucoma, Open-Angle, Glaucoma, Glaucoma, Angle-Closure, Glaucoma, Neovascular, Hydrophthalmos, Exfoliation Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04381611
Study groupRoleWhat they receive
Primary GlaucomaNot described
Glaucoma SurgeryNot described
Glaucoma LaserNot described
Glaucoma Surgery CombinedNot described
Glaucoma treatmentNot described
Glaucoma imagingNot described
Glaucoma co-morbidityNot described
Glaucoma untreatedNot described
Glaucoma SuspectNot described
Secondary GlaucomaNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of patients with IOP reduction mmHg

    Final Intra Ocular Pressure <20% compared to baseline

    Measured: 12 month

  2. Patients with quantitative OCT variations ( RNFL, μm)

    Variation of RNFL before and after treatment ( laser, surgery, drug..)

    Measured: 12 month

  3. Number of patients with quantitative VF variation ( MD, dB)

    Visual Field MD variation before and after treatment ( laser, surgery, drug..)

    Measured: 12 month

  4. Number of patients with quantitative VF variation (LV, dB)

    Visual Field MD variation before and after treatment ( laser, surgery, drug..)

    Measured: 12 months

Secondary outcomes (6)
  1. Number of operations received by a patients

    Number of operations undertaken by each patient

    Measured: 12 month

  2. Number of patients undergoing a specific ocular surgical or laser procedure

    Number of patients undertaking different types of ocular procedures ( deep sclerectomy, cataract, LPI, SLT,...)

    Measured: 12 month

  3. Number of lowering IOP drugs ( molecules) taken by each patient

    Number of molecules used by each patient (e.g Cosopt: 2 molecules, Xalatan: 1...)

    Measured: 12 month

  4. Anterior segment OCT variations: ACA (°), SSA (°)

    variations of these measurements before and after procedure ( surgery or laser)

    Measured: 12 month

  5. Anterior segment OCT variations: AOD (mm)

    variations of these measurements before and after procedure ( surgery or laser)

    Measured: 12 month

  6. Anterior segment OCT variations: TISA (mm2)

    variations of these measurements before and after procedure ( surgery or laser)

    Measured: 12 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 May 2020
  2. Study start15 Jan 2019
  3. Primary completion15 Jan 2030 (estimated)
  4. Study completion15 Jan 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
30,000 participants (estimated)
Target duration
10 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT04381611
Sponsor's protocol ID
INTEGRAL
Status last verified
May 2022
First submitted
30 Apr 2020
Last updated
5 May 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Meduri E, Gillmann K, Bravetti GE, Niegowski LJ, Mermoud A, Weinreb RN, Mansouri K. Iridocorneal Angle Assessment After Laser Iridotomy With Swept-source Optical Coherence Tomography. J Glaucoma. 2020 Nov;29(11):1030-1035. doi: 10.1097/IJG.0000000000001654.

    PubMed 32890108

Questions about this trial

What is this clinical trial studying?

An observational study of Glaucoma Open-Angle and Glaucoma Eye, run by Dr. Kaweh Mansouri at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 5 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of patients with IOP reduction mmHg (time frame: 12 month). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04381611, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 May 2022.

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