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Interferon-alpha2a Versus Cyclosporin A for Severe Ocular Behcet's Disease (INCYTOB)

Phase III Study of Recombinant Human Interferon-alpha2a Versus Cyclosporin A for the Treatment of Ocular Behcet's Disease - a National,Randomised, Single-masked Controlled Trial (INCYTOB)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00167583
Acronym
INCYTOB
Enrollment
37
Registered
2005-09-14
Start date
2004-11-30
Completion date
2014-12-31
Last updated
2018-05-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Behcet's Disease, Panuveitis, Posterior Uveitis, Retinal Vasculitis

Keywords

Ocular Behcet's disease, Panuveitis, Posterior Uveitis, Retinal vasculitis, Treatment, Interferon-alpha, Cyclosporin A

Brief summary

The purpose of this study is to investigate if interferon-alpha2a is superior to the standard treatment with cyclosporin A for the treatment of severe ocular manifestations of Behcet's disease.

Detailed description

Behcet's disease is a multisystem vasculitis often involving ocular (retinal) blood vessels (in 70% of all cases). This form of uveitis or retinal vasculitis still leads to blindness in 25 to 50% of the patients irrespective of immunosuppressive treatment. The aim of the study is to evaluate if Interferon-alpha2a is superior to the present standard treatment (cyclosporin A (CSA)) for severe ocular (panuveitis, posterior uveitis, retinal vasculitis) Behçet's Disease (BD) and significantly improves visual prognosis and quality of health and life of the patients with ocular BD and is acting more rapidly than standard treatment. Furthermore, we want to evaluate if IFN-α induces long term remissions of ocular BD which can be maintained without further medical treatment. The patients are randomised into two treatment groups (IFN/CSA) and treated for one year according to an algorithm which adapts dosages to clinical course. A crossover from one treatment arm to the other is planned in case of inefficacy.

Interventions

DRUGCyclosporin A

3 mg/kg bw, augmented to 5 mg if necessary and combined with prednisolone. Adapted to serum levels

3-6 million iU per day sc., augmented to up to 9 if necessary, later reduced (according to clinical response) to 3 x 3 million iU /week.

Sponsors

University Hospital Tuebingen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Behçet's disease fulfilling the International Study Group Criteria with active pan- or posterior uveitis (according to the posterior uveitis scoring system) or retinal vasculitis and active disease according to the Behcet's Disease activity scoring system.

Exclusion criteria

* Previous treatment with interferon-α or cyclosporin A * Pregnancy, breast feeding women, malignancy * Renal impairment (creatinine \> 1.5 mg/dl) * Uncontrolled hypertension or diabetes * Depression or other psychic disorders(also history of depression) * History of acute or chronic inflammatory joint or autoimmune disease * Organ or bone marrow transplant recipient, cardiac failure \> NYHAIII * Acute liver disease with SGPT 2x above normal * White blood cell count \< 3500/mm3 * Platelet count \< 100000/mm3 * Hgb \< 8.5g/dl * Body weight \<45 kg * Alcohol abuse or drug abuse * Mental impairment * Uncooperative attitude

Design outcomes

Primary

MeasureTime frame
Improvement of disease activity and preservation of visual acuity (monthly, at one and 2 years)2 years
Time to improvement and remission2 years

Secondary

MeasureTime frame
Number of ocular and non-ocular relapses (1 year, 2 years)2 years
Number of switches from one treatment to the other2 years
Laboratory values for inflammatory activity (monthly)2 years
Duration of the treatment-free period (second year)2 years
Quality of life for patients with low vision (monthly)2 years

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026