ADalimumab in Persistent Early Oligoarthrits Study (ADEOS)

2019-11-12 18:25:34 | BioPortfolio


The purpose of this study is to investigate adalimumab, a drug that is currently licensed for treatment of patients with rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis and inflammatory bowel disease (Crohn's disease). It is a protein (human monoclonal antibody) that is designed to block the effects of an inflammatory cytokine, tumour necrosis factor alpha (TNF alpha) which is a causative factor in joint inflammation. It is given as a subcutaneous injection.

Management of established rheumatoid arthritis has been transformed with the use of TNFantagonists, the first in the class of biological agents. The benefits in early RA are also continuing to emerge. Oligoarthritis represents a subgroup of early inflammatory arthritis that warrants more effective treatment strategy including the potential to modulate the disease course and halt further progression. The TNFantagonists offer the potential of achieving this, justifying this initial investigation.

Hence, this study is designed to establish the benefit of adalimumab in preventing progression of oligoarthritis. The primary aim of the study is to assess how many patients achieve remission i.e. no further evidence of joint inflammation or damage. The investigators will do this by including patients who present with inflammation of four or less joints who do not fulfil criteria for a definite arthritis condition such as rheumatoid arthritis. The investigators will perform clinical, laboratory (blood tests) and imaging assessments at regular intervals on these patients to check on safety of the study drug adalimumab and evaluate any changes in disease activity that may have resulted from use of adalimumab. All patients will receive treatment with a standard therapy (methotrexate) with randomisation of half of the patients to receive the active study drug, adalimumab as additional treatment for six months.

Study Design




Adalimumab, Methotrexate, Placebo, Folic Acid


Leeds Teaching Hospitals NHS Trust
West Yorkshire
United Kingdom




University of Leeds

Results (where available)

View Results


Published on BioPortfolio: 2019-11-12T18:25:34-0500

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Medical and Biotech [MESH] Definitions

The active metabolite of FOLIC ACID. Leucovorin is used principally as its calcium salt as an antidote to folic acid antagonists which block the conversion of folic acid to folinic acid.

An enzyme of the oxidoreductase class that catalyzes the reaction 7,8-dihyrofolate and NADPH to yield 5,6,7,8-tetrahydrofolate and NADPH+, producing reduced folate for amino acid metabolism, purine ring synthesis, and the formation of deoxythymidine monophosphate. Methotrexate and other folic acid antagonists used as chemotherapeutic drugs act by inhibiting this enzyme. (Dorland, 27th ed) EC

Cell surface receptors that bind to and transport FOLIC ACID, 5-methyltetrahydrofolate, and a variety of folic acid derivatives. The receptors are essential for normal NEURAL TUBE development and transport folic acid via receptor-mediated endocytosis.

Derivatives of folic acid (pteroylglutamic acid). In gamma-glutamyl linkage they are found in many tissues. They are converted to folic acid by the action of pteroylpolyglutamate hydrolase or synthesized from folic acid by the action of folate polyglutamate synthetase. Synthetic pteroylpolyglutamic acids, which are in alpha-glutamyl linkage, are active in bacterial growth assays.

A nutritional condition produced by a deficiency of FOLIC ACID in the diet. Many plant and animal tissues contain folic acid, abundant in green leafy vegetables, yeast, liver, and mushrooms but destroyed by long-term cooking. Alcohol interferes with its intermediate metabolism and absorption. Folic acid deficiency may develop in long-term anticonvulsant therapy or with use of oral contraceptives. This deficiency causes anemia, macrocytic anemia, and megaloblastic anemia. It is indistinguishable from vitamin B 12 deficiency in peripheral blood and bone marrow findings, but the neurologic lesions seen in B 12 deficiency do not occur. (Merck Manual, 16th ed)

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