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

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2009 by University Hospital Tuebingen.
Recruitment status was:  Recruiting
Information provided by:
University Hospital Tuebingen Identifier:
First received: September 9, 2005
Last updated: July 26, 2010
Last verified: March 2009
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.

Condition Intervention Phase
Behcet's Disease Panuveitis Posterior Uveitis Retinal Vasculitis Drug: Cyclosporin A Drug: Interferon-alpha2a Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: 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)

Resource links provided by NLM:

Further study details as provided by University Hospital Tuebingen:

Primary Outcome Measures:
  • Improvement of disease activity and preservation of visual acuity (monthly, at one and 2 years) [ Time Frame: 2 years ]
  • Time to improvement and remission [ Time Frame: 2 years ]

Secondary Outcome Measures:
  • Laboratory values for inflammatory activity (monthly) [ Time Frame: 2 years ]
  • Number of switches from one treatment to the other [ Time Frame: 2 years ]
  • Quality of life for patients with low vision (monthly) [ Time Frame: 2 years ]
  • Number of ocular and non-ocular relapses (1 year, 2 years) [ Time Frame: 2 years ]
  • Duration of the treatment-free period (second year) [ Time Frame: 2 years ]

Estimated Enrollment: 100
Study Start Date: November 2004
Estimated Study Completion Date: December 2012
Estimated Primary Completion Date: September 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: A
Cyclosporin A
Drug: Cyclosporin A
3 mg/kg bw, augmented to 5 mg if necessary and combined with prednisolone. Adapted to serum levels
Experimental: B
Drug: Interferon-alpha2a
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.

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.


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts 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
  Contacts and Locations
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Please refer to this study by its identifier: NCT00167583

Contact: Ina Koetter, MD +49-7071-2985138
Contact: Christoph Deuter, MD

Department of Internal Medicine II and Department of Ophthalmology Recruiting
Tuebingen, Germany, D-72076
Contact: Ina Koetter, MD    +49-7071-2985138   
Contact: Christoph Deuter, MD   
Principal Investigator: Ina Koetter, MD         
Sub-Investigator: Christoph Deuter, MD         
Sub-Investigator: Manfred Zierhut, MD         
Sub-Investigator: Ilhan Guenaydin, MD         
Sponsors and Collaborators
University Hospital Tuebingen
Principal Investigator: Ina Koetter, MD Tuebingen University Hospital
  More Information

Additional Information:

Responsible Party: Prof. Ina Koetter, University Hospital Tuebingen Identifier: NCT00167583     History of Changes
Other Study ID Numbers: AKF 105-0-0
Study First Received: September 9, 2005
Last Updated: July 26, 2010

Keywords provided by University Hospital Tuebingen:
Ocular Behcet`s disease
Posterior Uveitis
Retinal vasculitis
Cyclosporin A

Additional relevant MeSH terms:
Behcet Syndrome
Uveitis, Posterior
Retinal Vasculitis
Uveal Diseases
Eye Diseases
Vascular Diseases
Cardiovascular Diseases
Mouth Diseases
Stomatognathic Diseases
Uveitis, Anterior
Hereditary Autoinflammatory Diseases
Genetic Diseases, Inborn
Skin Diseases, Genetic
Skin Diseases
Skin Diseases, Vascular
Retinal Diseases
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Immunosuppressive Agents
Immunologic Factors processed this record on September 21, 2017