Sorry for the duplicate information - I posted at the same time as CPA. -Amy
I would guess the drug you are referring to in the clinical trial is E7389. There are a number of clinical trials involving E7389 and breast cancer - some recruiting and some active but not recruiting.
E7389 is a synthetic analog of halichondrin B (HB), which is a natural product shown in preclinical studies to have highly potent anti-cancer activity in vitro and in vivo. Halichondrin B was originally isolated from a type of marine sponge.
Here is one of Lani's posts regarding E7389 from SABCS from a few years ago. Maybe Lani or others will chime in if they see this.
http://her2support.org/vbulletin/sho...ighlight=e7389
-Amy