The trial results showed durable clinical benefit defined as tumor shrinkage visible on X-ray or other physical exam or improvement in symptoms without tumor growth was observed in eight out of the nine patients evaluated.
The first patient treated in the trial has shown clinical improvement for approximately 450 days and is ongoing, Von Hoff says, with almost no side effects beyond minimal hair loss.
He came to us short of breath and in pain, but he has had a very dramatic response with this drug, Von Hoff said.
Further evaluations of the study participants measured the presence of GLI1 in skin cells sampled from the participants. Among all patients tested to date, there was reduction in this marker, indicating that the drug was affecting the hedgehog pathway.
The trial, sponsored by Genentech, also included clinical sites at the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, Maryland and Karmanos Cancer Institute, Detroit, Michigan.
In the second trial, Von Hoff and colleagues showed that a novel combination of two drugs (nanoparticle albumin-bound paclitaxel, or nab-pacilitaxel and gemcitabine) showed a significant clinical benefit in more than 80 percent of pancreatic cancer patients.
Unfortunately, most patients with pancreatic cancer have a very poor survival, and until now, the only option has been gemcitabine alone or in combination with erlotinib, said Von Hoff.
The researchers utilized the Target Now tumor profiling analysis, a cutting-edge oncology testing service performed by Caris Dx and Caris MPI, to better understand the characteristics expressed in patients tumors. In this ongoing research program, Von Hoff and colleagues found the SPARC (Secreted Protein Acidic an
|Contact: Galen Perry|
The Translational Genomics Research Institute