The trial tests the hypothesis that, in adults with active, moderate-to-severe Graves' orbitopathy, 24 weeks of oral atorvastatin 20 mg daily added to a standard 12-week course of intravenous methylprednisolone produces a greater reduction in extraocular muscle size than intravenous methylprednisolone alone, and that any such reduction is accompanied by lower expression of TSH receptor, IGF-1 receptor, PDGF receptor, PI3K/AKT and miR-155 transcripts, and higher expression of miR-146a. The prespecified direction for miR-146a follows its reported suppression in CD4+ T cells in active disease \[26\]. Reported directions of change are compartment-specific and not unanimous, so the transcript analyses are exploratory.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
64
Moderate-to-severe Graves' orbitopathy at a tertiary referral centre in Yogyakarta, Indonesia, will be allocated 1:1 to intravenous methylprednisolone (500 mg weekly for six weeks, then 250 mg weekly for six weeks) with oral atorvastatin 20 mg daily for 24 weeks.
Moderate-to-severe Graves' orbitopathy at a tertiary referral centre in Yogyakarta, Indonesia, will be allocated 1:1 to intravenous methylprednisolone (500 mg weekly for six weeks, then 250 mg weekly for six weeks)
Universitas Gadjah Mada
Yogyakarta, Yogyakarta, Indonesia, Indonesia
Individual rectus muscle diameters
The primary outcome is measuring the rectus muscle diameters using Coronal CT, per muscle, both orbits
Time frame: At the first week,12th week, and 24th week from starting point of treatment
Composite ocular response
A participant is a responder if at least two of the five criteria below are met in the more affected eye, with no deterioration in any of them in either eye: 1. reduction in clinical activity score of 2 points or more; 2. reduction in proptosis of 2 mm or more, without an increase of 2 mm or more in the fellow eye; 3. reduction in vertical palpebral fissure height of 2 mm or more, with the same proviso for the fellow eye; 4. disappearance of diplopia, or improvement by at least one Gorman grade; 5. improvement in best-corrected visual acuity of 0.1 logMAR or more, this being the step on the logMAR chart closest to the 0.2-decimal criterion used in STAGO.
Time frame: At Week 24th
Clinical activity score
7-item EUGOGO scale, masked assessor Score : * Minimum score 0 and maximum score 7 at first meeting * Maximum score 10 at follow up meeting Higher score has worse outcome
Time frame: Baseline and every study visit to week 24
Exophthalmos, clinical
Measurement of clinic exophthalmos using Hertel exophthalmometer, fixed base setting, single masked assessor
Time frame: Baseline and every study visit to week 24
Exophthalmos, radiological
Exophthalmos measured from Interzygomatic line to posterior corneal surface, axial CT
Time frame: Baseline, weeks 12, 24
Vertical palpebral fissure height
Palpbral fissure height measured using millimetre ruler, primary position of gaze, masked assessor
Time frame: Baseline and every study visit to week 24
Change in LDL cholesterol
Using the Enzymatic colorimetric assay; used in the prespecified mediation analysis
Time frame: Baseline, weeks 12, 24
Orbital fat volume
Using Segmentation at -200 to -30 HU, ITK-SNAP v4.2.0
Time frame: Baseline, weeks 12, 24
Transcript levels in peripheral blood
TSH-R, IGF-1R, PDGF-R, PI3K/AKT, miR-146a, miR-155; qRT-PCR, fold change relative to GAPDH for the messenger RNA targets and to U6 snRNA for the microRNA target
Time frame: Baseline, weeks 12, 24
Transcript levels in orbital tissue
TSH-R, IGF-1R, PDGF-R, PI3K/AKT, miR-146a, miR-155; qRT-PCR, fold change relative to GAPDH for the messenger RNA targets and to U6 snRNA for the microRNA targets; specimen taken at rehabilitative decompression
Time frame: At decompression 24th week
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