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A Phase 2 Study to Investigate the Clinical Activity of IPI-504 in Patients With Hormone-Resistant Prostate Cancer

2014-08-27 03:34:52 | BioPortfolio

Summary

To determine:

- Anti-tumor activity of IPI-504 in 2 groups of subjects with hormone resistant prostate cancer.

- Group A - subjects who have not previously received chemotherapy

- Group B - sujects who have received prior chemotherapy or could not tolerate chemotherapy.

- Clinical response will be determined by PSA and radiological response

Description

IPI-504 is a novel, water-soluble analog of 17-AAG and a potent inhibitor of Hsp90. Hsp90's role in the cell is to control the proper folding, function, and viability of various "client" proteins. Many of these client proteins (such as AKT, Her-2, Bcr-Abl, PDGFR-α, and c-Kit) are oncoproteins or important cell signaling proteins. Inhibition of HSP-90 leads to the proteasomal degradation of these proteins.

In patients with HRPC,there are several proteins that are important in the progression of HRPC, including AR, AKT and Her-2. All of these are client proteins of Hsp90 and in response to Hsp90 inhibition are degraded by their proteasome. Preclinical studies have shown that Hsp90 inhibition causes a dose dependent degradation of these client proteins and growth inhibition of prostate cancer in xenograft tumors.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Prostate Cancer

Intervention

IPI-504

Location

San Bernardino Urological Associates
San Bernardino
California
United States
92404

Status

Active, not recruiting

Source

Infinity Pharmaceuticals

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:34:52-0400

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Medical and Biotech [MESH] Definitions

A glycoprotein that is a kallikrein-like serine proteinase and an esterase, produced by epithelial cells of both normal and malignant prostate tissue. It is an important marker for the diagnosis of prostate cancer.

A synthetic retinoid that is used orally as a chemopreventive against prostate cancer and in women at risk of developing contralateral breast cancer. It is also effective as an antineoplastic agent.

Tissue ablation of the PROSTATE performed by ultrasound from a transducer placed in the RECTUM. The procedure is used to treat prostate cancer (PROSTATIC NEOPLASMS) and benign prostatic hypertrophy (PROSTATIC HYPERPLASIA).

Proteins secreted by the prostate gland. The major secretory proteins from the human prostate gland include PROSTATE-SPECIFIC ANTIGEN, prostate-specific acid phosphatase, prostate-specific membrane antigen, and prostate-specific protein-94.

Tumors or cancer of the PROSTATE.

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