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

NCT ID: NCT00564928

Last Updated: 2012-12-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

19 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-11-30

Study Completion Date

2010-07-31

Brief Summary

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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

Detailed Description

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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.

Conditions

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Prostate Cancer Prostatic Neoplasms Cancer of the Prostate

Keywords

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Hormone resistant prostate cancer castrate resistant prostate cancer HRPC CRPC

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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IPI-504: Group A

No Prior treatment for prostate cancer with cytotoxic chemotherapy (adjuvant or neoadjuvant chemotherapy is acceptable if completed \>2 years prior to study)

Group Type EXPERIMENTAL

IPI-504

Intervention Type DRUG

IPI-504 at 400mg/m2, IV, 2 times a week for 2 weeks with 10 days off treatment. Twenty-one (21) day cycle

IPI-504: Group B

* Must have evidence of radiographic metastatic disease
* Must have been treated with a docetaxel-based chemotherapy regimen for HRPC with a minimum of 2 cycles with either PSA or RECIST defined radiographic progression during or witin 60 days of completeing docetaxel based chemotheraph or be intolerant of docetaxel-based chemotherapy
* No more than three prior chemotherapies regimens for HRPC

Group Type EXPERIMENTAL

IPI-504

Intervention Type DRUG

IPI-504 at 400mg/m2, IV, 2 times a week for 2 weeks with 10 days off treatment. Twenty-one (21) day cycle

Interventions

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IPI-504

IPI-504 at 400mg/m2, IV, 2 times a week for 2 weeks with 10 days off treatment. Twenty-one (21) day cycle

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Adenocarcinoma of the prostate
* Resolution of acute toxic side effects of prior chemotherapy
* Castration resistant disease despite ongoing chemical or surgical castration
* ECOG 0-1
* PSA greater than or equal to 2
* Group A -

* No Prior treatment for prostate cancer with cytotoxic chemotherapy (neoadjuvant, adjuvant treatment permitted if more than 2 years out)
* Group B

* Radiographic evidence of metastatic disease
* Prior tx with docetaxel-minimum of 2 cycles with progression by RECIST or PSA or intolerant of tx
* Maximum of 3 prior chemotherapies

Exclusion Criteria

* Small cell carcinoma of the prostate
* Treatment within 2 weeks with approved, investigational, or small molecule
* Treatment within 4 weeks with biologic or external beam radiation
* ANC \<1,500 cells m3; Platelets \<100,000 mm3; Hemoglobin \<9.0g/dL
* AST/ALT \>2.5 ULN
* Serum creatinine \>3.0mg/dL
* Active keratitis or keratoconjunctivitis
* Previous treatment with 17-AAG, DMAG; or any other HSP-90 inhibitor
* Baseline Qtc \>450 mses
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Infinity Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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William Oh, MD

Role: PRINCIPAL_INVESTIGATOR

Dana-Farber Cancer Institute

Locations

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San Bernardino Urological Associates

San Bernardino, California, United States

Site Status

Stanford University Medical Center

Stanford, California, United States

Site Status

University of Colorado at Denver

Denver, Colorado, United States

Site Status

MCG Cancer Center

Augusta, Georgia, United States

Site Status

University of Chicago Hospitals

Chicago, Illinois, United States

Site Status

Dana-Farber Cancer Institute

Boston, Massachusetts, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status

Wayne State University

Detroit, Michigan, United States

Site Status

Parkland Hospital

Dallas, Texas, United States

Site Status

Countries

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United States

Other Identifiers

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IPI-504-04

Identifier Type: -

Identifier Source: org_study_id