Kosan's Lead Hsp90 Inhibitor, Tanespimycin, Shows High Level of Activity in Trastuzumab Resistant/Refractory HER2-Positive Breast Cancer in a Pha... ( Data Presented at ASCO Show 26% Pa...)

HOME >> MEDICINE >> TECHNOLOGY

Kosan's Lead Hsp90 Inhibitor, Tanespimycin, Shows High Level of Activity in Trastuzumab Resistant/Refractory HER2-Positive Breast Cancer in a Phase 2 Trial

Date:6/3/2008

Data Presented at ASCO Show 26% Partial Response, 63% Clinical Benefit

Incidence

HAYWARD, Calif., June 3 /PRNewswire-FirstCall/ -- Kosan Biosciences Incorporated (Nasdaq: KOSN) today announced that its lead Hsp90 inhibitor, tanespimycin, demonstrated a high level of antitumor activity in a Phase 2 trial when administered in combination with trastuzumab (Herceptin(R)) to patients with HER2-positive metastatic breast cancer whose disease had either progressed after, or did not respond to, treatment with trastuzumab immediately prior to entering the trial. Of 27 evaluable patients, 17 patients showed clinical benefit including 7 patients with partial response (PR), 5 patients with tumor regression (minor response or MR) and 5 patients with extended stable disease (SD, greater than 4 cycles), yielding an overall clinical benefit incidence of 63%. Common toxicities were mainly mild to moderate and included fatigue and gastrointestinal symptoms.

Updated data from the Phase 2 trial were presented in a poster titled, "Phase 2 trial of the Hsp90 inhibitor tanespimycin (Tan) + trastuzumab (T) in patients (pts) with HER2-positive metastatic breast cancer (MBC)," by Shanu Modi, M.D., of Memorial Sloan-Kettering Cancer Center, at the 44th American Society of Clinical Oncology (ASCO) Annual Meeting being held in Chicago, IL.

"The response data from this Phase 2 trial of tanespimycin plus trastuzumab have grown stronger as more patients have been treated, underscoring our observation that tanespimycin is a highly active and tolerable agent in patients whose disease is refractory to trastuzumab," said Clifford A. Hudis, M.D., Chief, Breast Cancer Medicine Service, Memorial Sloan-Kettering Cancer Cent
'/>"/>

0

GOOD

Page: 1 2 3 4 5 6
Related medicine technology :

1. NexGenix Pharmaceuticals Presents Data on a Novel Small Molecule Inhibitor of Heat Shock Protein 90 (Hsp90) at the GTCbio Cancer Drugs Research & Development Conference
2. Kosan Initiates Phase 2 Trial of Alvespimycin, Second-Generation Hsp90 Inhibitor, in HER2-Positive Metastatic Breast Cancer
3. Kosan Presents Updated Data on Hsp90 Inhibitor, Tanespimycin, in Multiple Myeloma at Ash
4. First High-Res 3-D Structures of Mammalian HSP90 Protein Solved, Key to Better Targets for AIDS, Sepsis, Cancer Drugs
5. Kosans Second-Generation Hsp90 Inhibitor, Alvespimycin, Shows 42% Clinical Benefit in Phase 1 HER2-Positive Metastatic Breast Cancer Trial
6. Kosan Opens Registration Program for Lead Hsp90 Inhibitor, Tanespimycin, in Multiple Myeloma
7. BiPar Sciences Expands Clinical Development of BSI-201, A Novel PARP Inhibitor, With Phase 2 Trial in Uterine Cancer
8. BiPar Sciences Announces Clinical Data Presentations on Lead PARP Inhibitor, BSI-201, at 40th American Society of Clinical Oncology Annual Meeting
9. BiPar Sciences Expands Phase 2 Clinical Trials of BSI-201, a Novel DNA Repair Inhibitor, in Ovarian Cancer
10. SuperGen Identifies Lead PIM Kinase Inhibitor, SGI-1776, That Causes Tumor Regression in AML Xenograft Models
11. SuperGens DNA Methyltransferase Inhibitor, S-110, Improves In Vivo Efficacy Profile of Decitabine

Post Your Comments:

Kosan's Lead Hsp90 Inhibitor, Tanespimycin, Shows High Level of Activity in Trastuzumab Resistant/Refractory HER2-Positive Breast Cancer in a Pha...( Data Presented at ASCO Show 26% Pa...),Health