Arotinoid acid (Ro 13-7410, TTNPB) is the third generation of synthetic retinoid, which was developed for the treatment of psoriasis and other hyperkeratotic skin disorders. The therapeutically active dose is less than 0.5 ug/kg body weight/day. Arotinoid Acid is an agonist of RAR with IC50 values of 3.8nM, 4nM and 4.5nM for RARα, RARβ and RARγ, respectively. Naturally occurring vitamin A-like compounds such as all-trans-retinoic acid (atRA) are responsible for regulating growth and differentiation in the cell, and many of them have shown promising anticancer effects. Bioassays in vivo and in culture showed that TTNPB is more potent than atRA, mainly because of its higher molecular stability. The effects of TTNPB, which include control of epidermal keratinocytes and murine teratocarcinoma cells and antiproliferative effects on Kaposi´s sarcoma, breast cancer, cervical carcinoma, and leukemia cells have been known for some time. Furthermore, TTNPB proved to be 100 times more effective than atRA in inhibiting the growth of breast cancer cells. However, TTNPB is more teratogenic than atRA, which limits its use as a chemotherapeutic agent in humans. Arotinoid acid (AGN193198) has being shown to be useful for the treatment of pancreatic cancer among other types of cancer.