- Known chronic or relevant acute infections, such as active tuberculosis, HIV or viral hepatitis; QuantiFERON® TB test or PPD skin test will be performed according to local labelling for Humira®. If the result is positive, patients may participate in the study if further work up (according to local practice/guidelines) establishes conclusively that the patient has no evidence of active tuberculosis. If presence of latent tuberculosis is established, then treatment should have been initiated and maintained according to local country guidelines.