Clinical trial Phase 2 Interventional Ages 18 to 85

Prophylactic Treatment of Graves Ophthalmopathy (GO) in Newly Diagnosed Graves' Disease (GD) With Atorvastatin (ATORGO)

Run by Region Skane · NCT07883356 · Data updated 2026-11-12

Not yet open. This study is not taking new participants. Its registered completion date is 2032-11-01.

Graves' disease is an autoimmune condition that causes an overactive thyroid. Some people with Graves' disease develop thyroid eye disease, also called Graves' orbitopathy, which can cause swelling around the eyes, eye discomfort, double vision, changes in appearance, and, in severe cases, problems with vision. The purpose of this study is to find out whether atorvastatin, a commonly used cholesterol-lowering medicine, can reduce the risk of developing active thyroid eye disease in adults who have recently been diagnosed with Graves' disease. A total of 554 participants will be randomly assi…

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment554 (estimated)
SponsorRegion Skane
Academic / other
Drugs / interventionsAtorvastatin
Locations7 sites (Sweden)
Trial IDNCT07883356 on ClinicalTrials.gov

What this trial studies

Graves' disease (GD) is an autoimmune thyroid disorder in which stimulating antibodies against the thyrotropin receptor cause hyperthyroidism. Graves' orbitopathy (GO), also referred to as thyroid eye disease, is the most important extrathyroidal manifestation of GD. GO may cause pain, swelling, redness, proptosis, diplopia, impaired quality of life, and, in severe cases, visual impairment. Although treatment of established GO has improved, there are currently limited options for preventing the development of GO in patients with newly diagnosed GD. Observational studies have suggested that treatment with statins may be associated with a lower risk of developing GO in patients with GD. Statins have anti-inflammatory and immunomodulatory effects in addition to their lipid-lowering properties, providing a biological rationale for evaluating whether statin treatment can prevent GO. However, the preventive effect of statins has not been established in a sufficiently large randomized controlled trial. ATORGO is a multicenter, randomized, controlled clinical trial designed to evaluate whether treatment with atorvastatin reduces the risk of developing active GO in adults with newly diagnosed GD. Participants are randomized in a 1:1 ratio to receive atorvastatin 40 mg once daily for 12 months in addition to standard treatment for GD, or standard treatment for GD alone. Participants are followed for 18 months after randomization. Clinical assessments are performed at predefined stud…

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18-85 years.
* Newly diagnosed Graves' disease, defined as TSH \<0.1 with elevated free T4 and/or free T3 and positive TSH-receptor antibodies (TRAb).
* Ability to understand medical information in Swedish.

Exclusion Criteria:

* Pregnancy, planned pregnancy within 12 months, or lactation.
* Mental inability, reluctance, or language difficulties resulting in difficulty understanding the meaning of participation in the trial.
* Prior treatment with statins, other lipid-lowering drugs, selenium, corticosteroids, or other immunosuppressive medications for more than 7 days within the 3 months preceding Graves' disease diagnosis.
* Existing Graves' ophthalmopathy at the time of Graves' disease diagnosis.
* Known hypersensitivity to atorvastatin or other statins.
* Active liver disease.
* Alcohol abuse.
* Elevated liver enzymes (AST/ALT \>3 times the upper limit of normal) in two consecutive tests.
* Creatine kinase (CK) \>5 times the upper limit of normal at screening/baseline.
* Concurrent use of medications that interact with statins, particularly CYP3A4 inhibitors or inducers.
* Need for corticosteroid prophylaxis in connection with planned radioiodine therapy.

Where it's running

  • Sahlgrenska University Hospital
    Gothenburg, Sweden
  • Skåne University Hospital - Lund
    Lund, Sweden
  • Skåne University Hospital - Malmö
    Malmö, Sweden
  • Örebro University Hospital
    Örebro, Sweden
  • Karolinska University Hospital
    Stockholm, Sweden
  • Norrland University Hospital
    Umeå, Sweden
Show 1 more location
  • Uppsala University Hospital
    Uppsala, Sweden

Study contacts

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Browse more
Last reviewed 2026-11-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.