Önalan G, et al. - Researchers here assessed the effects of a tumor necrosis factor inhibitor (etanercept) on pregnancy outcomes in patients with endometrioma who were treated with assisted reproductive technology. Findings suggested that etanercept could be a new non-hormonal therapy that might be an adjunct to treatment of infertile women with endometrioma. However, full clarification regarding the safety of etanercept on embryos and fetuses requires exploration.