Anti–TNF alpha drugs are used for the treatment of all of following diseases EXCEPT :
There is already under-expression of TNF-α in SLE, therefore we cannot use anti-TNF drugs for this condition. It is further strengthened by the fact that anti-TNF alpha drugs like infliximab cause SLE as the adverse effect.
Indications for TNF-α inhibitors

Rheumatoid arthritis
Juvenile arthritis
Psoriatic arthritis
Psoriasis
Ankylosing spondylitis
Crohn's disease
Systemic lupus erythematosis
Seronegative arthritis
Psoriatic arthritis
Crohn's disease