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Graves OphthalmopathyNCT03278964

Analysis Between the Results of Two Surgical Techniques of Orbital Decompression in Patients With Graves Orbitopathy

A study testing Orbital decompression in people with Graves Ophthalmopathy, run by University of Sao Paulo General Hospital at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Randomized prospective clinical trial, aiming to compare two techniques of orbital decompression. Patients with Graves orbitopathy in the inactive phase for at least 6 months will be divided in two groups; one group will be submitted to orbital decompression by antro-ethmoidal technique; the other group will be… Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Graves Ophthalmopathy
What is being tested?
Orbital decompression
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteBrazil
Study dates
5 Feb 2015to 31 Jan 2019
Phase
Interventional
Are there results?
None posted in the registry

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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of Graves orbitopathy for at least 2 years
  • Clinical Activity Score (CAS) < 4 for at least 6 months
  • Agreement with the Informed Consent Form, which will be signed during the selection visit
  • Ability to come to periodic evaluations for 6 months after the orbital decompression
  • Absence of ocular abnormalities such as degenerative myopia, microphthalmia or anophthalmic cavity
  • Absence of orbital abnormalities such as previous fractures or congenital defects
Show all 10Show fewer
  • Good collaboration for the exams
  • Euthyroidism
  • Exophthalmus ≥ 20 mm in Hertel's exophthalmometry
  • Preoperative clinical evaluation indicating absence of contraindications for a surgical procedure

Who cannot join

  • Myasthenia gravis
  • Pregnancy
  • Previous orbital, strabismus or eyelid surgery
  • Other abnormal eye conditions or symptoms that make it impossible to admit the patient to the study, according to the clinical judgment of the investigator.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • University of Sao Paulo General Hospital

    São Paulo, 05403000

Other trials in Brazil

About this study

Official title: Comparative Morphometric, Functional and Psychosocial Analysis Between the Results of Two Surgical Techniques of Orbital Decompression in Patients With Graves Orbitopathy

Randomized prospective clinical trial, aiming to compare two techniques of orbital decompression. Patients with Graves orbitopathy in the inactive phase for at least 6 months will be divided in two groups; one group will be submitted to orbital decompression by antro-ethmoidal technique; the other group will be submitted to orbital decompression by lateral wall technique. Patients will be followed up for a period of 6 months after the surgery, and will be evaluated about the effect of orbital decompression on ocular motility, proptosis, ocular surface and quality of life.

Read the detailed description

Graves' orbitopathy is the most relevant non-thyroid manifestation of Graves' disease. Its clinical status varies from subclinical to severe deformities. Clinical features include palpebral retraction, exophthalmos, restrictive strabismus, chemosis, ocular surface lesions and optic neuropathy. There are two stages of the disease. There is an active phase in which the inflammatory process is present and the orbital changes evolve. The inactive phase comprises a stable clinical picture regarding the sequelae of the active phase. Orbital decompression surgery is the main treatment procedure for this inactive phase for functional and cosmetic rehabilitation purposes. In the last decades, great advances in the techniques and indication of this surgery have been observed. However, a consensus about the ideal technique does not yet exist. The most commonly used techniques are antro-ethmoidal decompression and lateral wall decompression alone or associated with other walls. The present study will be based on patients with Graves' orbitopathy diagnosis for at least 2 years and who are already in the inactive phase for at least 6 months. There are no prospective studies comparing the 2 main orbital decompression techniques through a detailed analysis of surgical outcomes from computed tomography images, digital photographic images and ocular motility examination. These informations will be collected in the preoperative and postoperative periods. The investigators will evaluate the decompressive potential of each technique calculated by the tomographic images. Participants will be followed up for a period of 6 months after the surgical procedure and the effect of decompression on ocular motility, ocular bulb positioning, ocular surface, vertical palpebral fissure, and the patient's quality of life will also be analyzed. The findings of this work will bring important contribution to the improvement of this surgical procedure of great relevance in the rehabilitation of patients with Graves' orbitopathy.

Being tested
Orbital decompression
Keywords
Graves Disease, Orbital decompression, Graves Orbitopathy, Exophthalmos, Diplopia, Restrictive Strabismus
Medical subject headings
Graves Ophthalmopathy, Graves Disease, Exophthalmos, Diplopia

What participants receive

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

  • Orbital decompressionProcedure or surgery

Study groups in NCT03278964
Study groupRoleWhat they receive
Antro-ethmoidal techniqueActive comparatorPatients in the inactive phase of Graves orbitopathy will be submitted to orbital decompression by antro-ethmoidal technique.
Receives: Procedure: Orbital decompression
Lateral wall techniqueExperimentalPatients in the inactive phase of Graves orbitopathy will be submitted to orbital decompression by lateral wall technique.
Receives: Procedure: Orbital decompression

What is being measured

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

  1. Change in Ocular Motility status

    Measure by prism and cover, to assess strabismus in the nine positions of gaze

    Measured: Before orbital decompression and 1, 3 and 6 months after surgery

  2. Exophthalmos

    Exophthalmos will be measured by Hertel's exophthalmometer and orbital computerized tomography

    Measured: Before orbital decompression and 6 months after surgery

Secondary outcomes (5)
  1. Diplopia

    Evaluation by Gorman's Diplopia Table

    Measured: Before orbital decompression and 1, 3 and 6 months after surgery

  2. Digital photography evaluation

    Using digital photography, Photoshop and Image J, ductions and versions will be analyzed

    Measured: Before orbital decompression and 6 months after surgery

  3. Volume of the extraocular muscles

    Measure by orbital computerized tomography images

    Measured: Before orbital decompression and 6 months after surgery

  4. Ocular surface evaluation

    Assessed by Lysozyme Green, Break-up time, Schirmer I test

    Measured: Before orbital decompression and 6 months after surgery

  5. Quality of life questionary Quality of life questionary

    GO-QoL form

    Measured: Before orbital decompression and 6 months after surgery

Timeline

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

  1. First posted12 Sep 2017
  2. Study start5 Feb 2015
  3. Primary completion31 Jan 2019
  4. Study completion31 Jan 2019

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Patients with Graves orbitopathy will be randomly divided in two groups. One group will be submmited to orbital decompression by antro-ethmoidal technique. The other group will be treated by lateral wall technique.
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03278964
Sponsor's protocol ID
39748114.0.0000.0068
Status last verified
Aug 2019
First submitted
4 Sep 2017
Last updated
13 Aug 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Leite CA, Pereira TS, Chiang J, Moritz RB, Goncalves ACP, Monteiro MLR. Ocular motility changes after inferomedial wall and balanced medial plus lateral wall orbital decompression in Graves' orbitopathy: a randomized prospective comparative study. Clinics (Sao Paulo). 2021 Apr 9;76:e2592. doi: 10.6061/clinics/2021/e2592. eCollection 2021.

    PubMed 33852655
  • Leite CA, Pereira TS, Chiang J, Pieroni Goncalves AC, Monteiro MLR. Evaluation of Ocular Versions in Graves' Orbitopathy: Correlation between the Qualitative Clinical Method and the Quantitative Photographic Method. J Ophthalmol. 2020 Jul 31;2020:9758153. doi: 10.1155/2020/9758153. eCollection 2020.

    PubMed 32832143

Questions about this trial

What is this clinical trial studying?

A study testing Orbital decompression in people with Graves Ophthalmopathy, run by University of Sao Paulo General Hospital at 1 site in Brazil.

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 10 inclusion and 4 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: finished, as of the sponsor's last update on 13 Aug 2019. 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 Brazil. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change in Ocular Motility status (time frame: Before orbital decompression and 1, 3 and 6 months after surgery). The study lists 2 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 NCT03278964, which also lists 2 linked publications.

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 13 Aug 2019.

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