ClinicalTrials.gg
CompletedNCT06367517Updated Jun 4, 2026

Tocilizumab in Corticosteroid-Resistant Graves' Orbitopathy (Thyroid Eye Disease)

An observational study in Orbitopathy, Graves, Thyroid Eye Disease and Ophthalmopathy, sponsored by Medical University of Warsaw. Completed at 1 site in Poland. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-06-04.

Sponsored by Medical University of Warsaw · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
32
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The aim of this study is to evaluate the efficacy and safety of Tocilizumab as second/third line treatment in patients with Active Moderate-to-Severe Corticosteroid-Resistant Thyroid Eye Disease.

Read the detailed description

Graves' Orbitopathy (GO) is an autoimmune disease that involves orbital tissues, leading to temporary or permanent damage to the eye. Although GO is a rare condition, it negatively affects the quality of life in the majority of patients. In the majority of european centers, high-dose intravenous glucocorticoid (GCs) therapy remains the first-line treatment in patients with active, moderate-to-severe GO. However, GCs are effective in only 45-60% of patients, with a high probability of diseases relapse (10-40%) or disease progression to dysthyroid optic neuropathy (up to 10%). Due to limited efficacy of GCs, unpredictable relapses and progression of GO, the management of GO remains a challenge.

A few studies have demonstrated that interleukin-6 (IL-6) blockade with tocilizumab (TCZ) is effective in GC-refractory GO. However, the long-term outcomes of TCZ remain scarce.

Therefore, the investigators are planning to assess the therapy with Tocilizumab, regarding clinical outcomes and adverse events. The investigators plan to include a total of 30 patients with active, moderate-to-severe, corticosteroid-resistant GO over a period of approximately 4 years.

02

Conditions studied

  • Orbitopathy, Graves
  • Thyroid Eye Disease
  • Ophthalmopathy

Keywords

  • Graves' disease
  • Graves' orbitopathy
  • Tocilizumab
  • Thyroid Eye Disease
  • Hyperthyroidism
03

In context

Graves Ophthalmopathy

199 studies on the registry are indexed under Graves Ophthalmopathy; 58 are open to participants now.

This study's enrollment of 32 is below the median of 80 across 45 observational studies indexed under Graves Ophthalmopathy.

Browse Graves Ophthalmopathy studies →

Lead sponsor

Medical University of Warsaw is the lead sponsor of 326 studies on the registry; 87 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Consecutive patients with active, moderate-to-severe Graves' orbitopathy (GO), resistant to corticosteroid treatment, will be enrolled to participate in the study. They will be diagnosed and treated at a tertiarry referall center.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Written
  • Male or female, 18-80 years old
  • Patients with active (Clinical Activity Score ≥ 3 in 7-item scale) and moderate-to-severe GO, diagnosed according to the EUGOGO guidelines, after the completion of MP pulse treatment, WITH

    o Deterioration of GO (in 1 or 2 eyes) when two of the following occurred:

  • increase in palpebral aperture by at least 2 mm;
  • deterioration in CAS by at least 2 points (7-point CAS)
  • increase in exophthalmos by at least 2 mm;
  • worsening of diplopia (appearance or change in the degree)
  • worsening in ocular motility by 8o

    o Incomplete response in both eyes to intravenous methylprednisolone pulse therapy; defined changes smaller than previously defined in any of the mentioned parameters.

  • Euthyroid for at least 6-8 weeks (serum free hormone concentrations within 30% of normal range) on either anti-thyroid medications (tyonamides) to control hyperthyroidism or L-thyroxine for replacement therapy for hypothyroidism.
  • Negative pregnancy test in women of fertile age.
  • All female patients of fertile age must use a reliable method to prevent pregnancy during the study period, and at least during a period of six months following the last dose of the medicinal product.

Exclusion criteria

Exclusion Criteria:

  • Signs of sight-threatening TED (severe keratopathy, optic neuropathy)
  • Pregnant or breastfeeding woman or woman planning to become pregnant during the study
  • Patients who could need treatment with radioactive iodine or thyroidectomy during the study
  • Treatment with any biological therapy at any time.
  • Active infection.
  • History of recurrent infection or recurrent bacterial infections.
  • Positive quantiferon without documentation of treatment for tuberculosis (TB) infection or documentation of no need for such therapy.
  • Required management of infections, as follows: currently on any suppressive therapy for a chronic infection, hospitalization for treatment of infection within 60 days before Day 0, use of parenteral antibiotics within 60 days before Day 0, use of oral antibiotics within 30 days before Day 0.
  • History of intestinal ulceration or diverticulitis
  • Patients with a history of chronic liver disease or liver disorders: (ALT) and aspartate aminotransferase (AST) above 5 times (ULN)
  • positive test.
  • HBcAb positive test, regardless of HBsAb status, will undergo HBV DNA which, if positive, will be excluded. HbcAb positive, HbsAg negative patients with undetectable HBV DNA will receive antiviral prophylaxis throughout the therapy.
  • antibody positive test at screening.
  • Positive test for (HIV) antibody at screening or historically. Denied consent to HIV testing.
  • (ANC) \< 2.0 × 109/L or a count \< 100×103/μL
  • Alkaline phosphatase and >1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin is\<35%).
  • Cardiovascular or cerebrovascular disease clinically significant.
  • Other serious chronic illness (including uncontrolled diabetes mellitus, renal disease, pulmonary disease, major depression).
  • History of sarcoidosis.
  • Primary or secondary immunodeficiency.
  • History of IgE-mediated or non-IgE-mediated .
  • History of reactions or anaphylactic allergic severe human monoclonal antibodies, humanized or murine.
  • Administration of given within 30 days prior to administration of (Day 0) or concurrently with tocilizumab (during study).
  • Splenectomy.
  • Current drug or alcohol abuse or dependence.
Terms in these criteria, in plain language(15)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
32 participants (actual)
Patient registry
No

Groups and cohorts

  • Graves' orbitopathy

    Patients with active, moderate to severe TED, without disease improvement after methylprednisolone pulse therapy in an intermediate-dose schedule (starting dose of 0.5 g once weekly for 6 weeks, followed by 0.25 g once weekly for 6 weeks) or high-dose regimens (a starting dose of 0.75 g once weekly for 6 weeks, followed by 0.5 g once weekly for 6 weeks) with or without concomitant radiotherapy.

    Drug: Tocilizumab

Interventions

  • Tocilizumab administrated at a dose of 8 mg/kg, given once every four weeks

    Also known as: RoActemra

06

What researchers measure

Primary outcomes

  1. Disease improvement

    Proportion of patients improved at 16, 24 and 48 weeks as assessed by a composite ophthalmic score. A response to treatment will be considered positive in the case of an improvement of at least 2 of the following features in 1 eye, without concomitant deterioration in the other eye: * decrease in eyelid aperture by at least 2 mm measured with a ruler * decrease in proptosis by at least 2 mm measured with Hertel Exophthalmometer * increase in eyelid motility by at least 8° assessed by ophthalmologist or improvement of Bahn-Gorman diplopia score (Grade I - intermittent diplopia, Grade II - Inconstant diplopia, Grade III - Constant diplopia) * decrease in 7-item (spontaneous retrobulbar pain, pain on attempted upward or downward gaze, redness of eyelids, redness of conjunctiva, sweeling of caruncle or plica, swelling of eyelids, swelling of conjunctiva) clinical activity score (CAS) by at least 2 points.

    Time frame: at 16, 24 and 48 weeks

  2. Improvement of quality of life

    Improvement of quality of life according to the disease-specific quality of life questionnaire in Graves' orbitopathy (GO-QoL) at 16, 24 and 48 weeks. All Go-QoL questions will be scored as 'severely limited' (one point), a 'little limited' (two points), or 'not limited at all' (three points). The questions will be transformed from 0 to 100 by the following formula: total score= (raw score- 8)/16 x100. An improvement in QoL wil be considered, if there will be an increase of 6 or more points on either one (or both) the GO-QoL scales (functioning and appearance);

    Time frame: at 16, 24 and 48 weeks

Secondary outcomes

  1. Disease inactivation

    Proportion of patients achieving response in reduction of clinical activity score (CAS) defined as reduction of ≥ 2 points from baseline in the study eye without deterioration (≥ 2 point increase) of CAS in the fellow eye

    Time frame: at 16, 24 and 48 weeks

  2. Proportion of patients achieving response in specific GO signs and symptoms

    * reduction of proptosis of least 2 mm without deterioration (≥ 2 mm increase) of proptosis in the fellow eye measured with Hertel Exophthalmometer. * diplopia; proportion of participants with baseline diplopia \> 0 and a reduction of ≥ 1 grade assessed according to Bahn-Gorman diplopia score (Grade I - intermittent diplopia, Grade II - Inconstant diplopia, Grade III - Constant diplopia) * ocular motility; an increase of at least 8° assessed by ophthalmologist * palpebral aperture; an increase of at least 2 mm measured with a ruler * reduction in spontaneous or gaze-evoked retrobulbar pain - a binary scale (yes/no) * reduction in swelling of eyelids (severe/moderate/mild), redness of eyelids (yes/no), redness of conjunctiva (yes/no), sweeling of caruncle or plica (yes/no), swelling of conjunctiva (yes/no)

    Time frame: at 16, 24 and 48 weeks

  3. Number of participants with treatment-related adverse events as assessed by CTCAE v5.0

    Incidence of adverse events, with severity determined according to NCI CTCAE v5.0

    Time frame: from 0 to 16 weeks

  4. Decrease in concentration of thyrotropin receptor antibodies

    Decrease in concentration of thyrotropin receptor antibodies

    Time frame: at 4, 8, 12, 16, 24 and 48 weeks

  5. Decrease in levels of proinflammatory cytokines

    Decrease in serum levels of interleukin-17a and interleukin-23

    Time frame: at 4, 8, 12, 16, 24 and 48 weeks

  6. Number of the rehabilitative surgeries performed after immunosuppressive therapy

    Rehabilitative surgery includes orbital decompression, squint surgery, lid lengthening, and blepharoplasty/browplasty

    Time frame: at 48 weeks

  7. The rate of disease relapse

    Proportion of patients with worsening of symptoms associated with GO after a period of improvement or stability. The relapse of the disease will be noted in case of a deterioration of at least 2 of the following features in 1 eye: * increase in eyelid aperture by at least 2 mm measured with a ruler , * increase in exophthalmos by at least 2 mm measured with Hertel Exophthalmometer, * decrease in eyelid motility by at least 8° assessed by ophthalmologist or deterioration of ≥ 1 grade in Bahn-Gorman diplopia score (Grade I - intermittent diplopia, Grade II - Inconstant diplopia, Grade III - Constant diplopia), * increase in 7-item (spontaneous retrobulbar pain, pain on attempted upward or downward gaze, redness of eyelids, redness of conjunctiva, sweeling of caruncle or plica, swelling of eyelids, swelling of conjunctiva) clinical activity score (CAS) by at least 2 points.

    Time frame: at 48 weeks

  8. Decrease in proptosis by at least 2 mm assessed using magnetic resonance imaging (MRI)

    Measurement of exophthalmos (the distance between the interzygomatic line and the anterior surface of the globe - corneal apex) on axial T2W orbital MRI images performed at week 16 in comparison to baseline.

    Time frame: at 16 weeks

07

Study locations

1 site
  • Department of Internal Medicine and Endocrinology, Medical University of Warsaw
    Warsaw, 02-097, Poland
08

References and documents

Publications

  • Burch HB, Perros P, Bednarczuk T, Cooper DS, Dolman PJ, Leung AM, Mombaerts I, Salvi M, Stan MN. Management of Thyroid Eye Disease: A Consensus Statement by the American Thyroid Association and the European Thyroid Association. Thyroid. 2022 Dec;32(12):1439-1470. doi: 10.1089/thy.2022.0251. Epub 2022 Dec 8. PubMed 36480280 ↗
  • Perez-Moreiras JV, Gomez-Reino JJ, Maneiro JR, Perez-Pampin E, Romo Lopez A, Rodriguez Alvarez FM, Castillo Laguarta JM, Del Estad Cabello A, Gessa Sorroche M, Espana Gregori E, Sales-Sanz M; Tocilizumab in Graves Orbitopathy Study Group. Efficacy of Tocilizumab in Patients With Moderate-to-Severe Corticosteroid-Resistant Graves Orbitopathy: A Randomized Clinical Trial. Am J Ophthalmol. 2018 Nov;195:181-190. doi: 10.1016/j.ajo.2018.07.038. Epub 2018 Aug 4. PubMed 30081019 ↗
  • Rymuza J, Kus A, Bialas-Niedziela D, Turczynska M, Kecik D, Bednarczuk T. Long-term remission of corticosteroid-resistant Graves' orbitopathy after therapy with tocilizumab. Endokrynol Pol. 2024;75(1):117-118. doi: 10.5603/ep.97224. PubMed 38497401 ↗
  • Bartalena L, Kahaly GJ, Baldeschi L, Dayan CM, Eckstein A, Marcocci C, Marino M, Vaidya B, Wiersinga WM; EUGOGO dagger. The 2021 European Group on Graves' orbitopathy (EUGOGO) clinical practice guidelines for the medical management of Graves' orbitopathy. Eur J Endocrinol. 2021 Aug 27;185(4):G43-G67. doi: 10.1530/EJE-21-0479. PubMed 34297684 ↗
  • Sawicka-Gutaj N, Bednarczuk T, Daroszewski J, Waligorska-Stachura J, Miskiewicz P, Sowinski J, Bolanowski M, Ruchala M. GO-QOL--disease-specific quality of life questionnaire in Graves' orbitopathy. Endokrynol Pol. 2015;66(4):362-6. doi: 10.5603/EP.2015.0046. PubMed 26323474 ↗
  • Rymuza J, Kus A, Nedeljkovic Beleslin B, Knezevic M, Bialas-Niedziela D, Turczynska M, Stojkovic M, Markovic B, Kecik D, Zarkovic M, Bednarczuk T. Tocilizumab in Active, Moderate-to-Severe, Glucocorticoid-Resistant Thyroid Eye Disease: An Open-Label Prospective Study in Two Independent Cohorts. Thyroid. 2026 Jun;36(6):654-664. doi: 10.1177/10507256261450089. Epub 2026 May 12. PubMed 42117357 ↗

Individual participant data

Plan to share: Undecided — Individual data will be provided at request

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06367517
Responsible party
Tomasz Bednarczuk (Prof, Medical University of Warsaw) — Principal investigator
First posted
Apr 16, 2024
Start date
May 20, 2021
Primary completion
May 20, 2025
Completion
May 20, 2025
Last update
Jun 4, 2026

Study contacts

Tomasz Bednarczuk, MD, PHD
principal investigator · Medical University of Warsaw

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion