17-AAG in Treating Patients With Metastatic Prostate Cancer That Did Not Respond to Previous Hormone Therapy

This study has been completed.
Information provided by (Responsible Party):
National Cancer Institute (NCI)
ClinicalTrials.gov Identifier:
First received: July 8, 2005
Last updated: October 7, 2013
Last verified: October 2013
This phase II trial is studying how well 17-AAG works in treating patients with metastatic prostate cancer that did not respond to previous hormone therapy. Drugs used in chemotherapy, such as 17-AAG, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing.

Condition Intervention Phase
Adenocarcinoma of the Prostate
Recurrent Prostate Cancer
Stage IV Prostate Cancer
Drug: tanespimycin
Other: laboratory biomarker analysis
Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase II Trial of 17-Allylamino-17-Demethoxygeldanamycin (17-AAG) in Patients With Hormone-Refractory Metastatic Prostate Cancer

Resource links provided by NLM:

Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • PSA response as defined by the recommendations of the Prostate-Specific Antigen Working Group [ Time Frame: Up to 1 year ]
  • Proportion of overall responses [ Time Frame: Up to 3 years ]
    The proportion of successes will be estimated by the number of successes divided by the total number of evaluable patients. Ninety-five percent confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner.

Secondary Outcome Measures:
  • Overall survival [ Time Frame: From registration to death due to any cause, assessed up to 3 years ]
    The distribution of survival time will be estimated using the method of Kaplan-Meier.

  • Disease-free survival [ Time Frame: From registration to documentation of disease progression, assessed up to 3 years ]
    The distribution of disease-free survival time will be estimated using the method of Kaplan-Meier.

  • Clinical or radiographic response rate (partial response [PR] and complete response [CR]) as measured by Response Evaluation Criteria in Solid Tumors (RECIST) [ Time Frame: Up to 3 years ]
    The number of patients with a PR or CR will be divided by the total number of evaluable patients with measurable disease. Assuming that this response incidence is binomially distributed, exact 95% confidence intervals will also be calculated.

  • Duration of PSA response and PSA control [ Time Frame: From PSA response to time of progression, assessed up to 1 year ]
    The distribution of this response duration will be estimated using the method of Kaplan-Meier.

  • Change in expression levels of interleukin-6 (IL-6), maspin and NF-kappaB [ Time Frame: From baseline to up to 3 years ]
    Summarized descriptively both quantitatively and graphically. Each of these correlative endpoints will be summarized individually, but will also be evaluated in terms of their relationships to one another; i.e. using Spearman rank correlation coefficient to assess the correlations between the three markers.

  • Correlation of biomarkers with cancer and treatment-related outcomes [ Time Frame: Up to 3 years ]
    Relationships will also be explored graphically using scatter plots.

  • Toxicity as assessed by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 3.0 [ Time Frame: Up to 30 days after completion of treatment ]

Estimated Enrollment: 28
Study Start Date: January 2005
Primary Completion Date: May 2006 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Treatment (tanespimycin)
Patients receive 17-N-allylamino 17-demethoxygeldanamycin (17-AAG) IV over 2-6 hours on days 1, 8, and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients who achieve a complete response (CR) receive 2 additional courses of treatment beyond documentation of CR.
Drug: tanespimycin
Given IV
Other: laboratory biomarker analysis
Correlative studies

Detailed Description:


I. Determine the prostate-specific antigen (PSA) response in patients with hormone-refractory metastatic prostate cancer treated with 17-N-allylamino-17-demethoxygeldanamycin (17-AAG).


I. Determine the overall survival and disease-free survival rate in patients treated with this drug.

II. Determine the safety profile of this drug in these patients. III. Determine the duration of PSA response and PSA control in patients treated with this drug.

IV. Determine the partial and complete response rates in patients with measurable disease treated with this drug.

V. Correlate changes in expression levels of interleukin-6, maspin, and NF-kappaB in serum and tissue with cancer and treatment-related outcomes in patients treated with this drug.

OUTLINE: This is a multicenter study. Patients receive 17-N-allylamino-17-demethoxygeldanamycin (17-AAG) IV over 2-6 hours on days 1, 8, and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients who achieve a complete response (CR) receive 2 additional courses of treatment beyond documentation of CR.

After completion of study treatment, patients are followed every 3 months for 1 year and then every 6 months for 3 years.

PROJECTED ACCRUAL: A total of 16-28 patients will be accrued for this study within 20 months.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Histologically confirmed adenocarcinoma of the prostate

    • Metastatic disease
  • Measurable or evaluable disease

    • Prostate-specific antigen (PSA) ≥ 5 ng/mL OR new areas of bony metastases on bone scan are required for patients with no measurable disease
  • Objective disease progression OR rising PSA despite receiving androgen deprivation therapy and undergoing antiandrogen withdrawal

    • Patients with a rising PSA must have 2 successive elevations (measured ≥ 1 week apart)
  • Must be castrate (testosterone < 50 ng/mL)

    • Luteinizing hormone-releasing hormone agonist therapy must be continued during study participation to maintain castrate levels of testosterone
  • Must have received ≥ 1 prior chemotherapy regimen for metastatic disease
  • No known brain metastases requiring active therapy

    • Previously treated asymptomatic brain metastases allowed
  • Performance status - ECOG 0-2
  • At least 12 weeks
  • Absolute neutrophil count ≥ 1,500/mm^3
  • Platelet count ≥ 100,000/mm^3
  • Hemoglobin ≥ 8.0 g/dL
  • Bilirubin ≤ 1.5 times upper limit of normal (ULN)
  • SGOT and/or SGPT ≤ 2.5 times ULN AND alkaline phosphatase normal
  • Alkaline phosphatase ≤ 4 times ULN AND SGOT and/or SGPT normal
  • Creatinine clearance ≥ 60 mL/min
  • Creatinine normal
  • QTc < 450 msec for male patients
  • LVEF > 40% by MUGA
  • EF normal by MUGA if prior anthracycline therapy
  • No congenital long QT syndrome
  • No left bundle branch block
  • Deep venous thrombosis or other clinically significant thromboembolic event within the past 6 months allowed provided patient is clinically stable on anticoagulation therapy
  • No history of serious ventricular arrhythmia (i.e., ventricular tachycardia or ventricular fibrillation ≥ 3 beats in a row)
  • No myocardial infarction within the past year
  • No cerebrovascular accident or transient ischemic attack within the past 6 months
  • No New York Heart Association class III or IV congestive heart failure
  • No poorly controlled angina
  • No uncontrolled dysrhythmia or dysrhythmias requiring medication
  • No active ischemic heart disease within the past 12 months
  • No other significant cardiac disease
  • Pulmonary embolus allowed within the past 6 months provided patient is clinically stable on anticoagulation therapy
  • Fertile patients must use effective contraception
  • Willing and able to provide blood samples
  • No serious allergy (i.e., hypotension, dyspnea, anaphylaxis, or edema) to eggs
  • No other concurrent malignancy or history of a curatively treated malignancy with a survival prognosis of < 5 years
  • No known HIV positivity
  • No active infection
  • No other severe acute or chronic medical or psychiatric condition or laboratory abnormality that would preclude study participation
  • At least 4 weeks since prior flutamide (6 weeks for bicalutamide or nilutamide)
  • At least 28 days since prior radiotherapy
  • No prior radiotherapy field that included the heart (e.g., mantle)
  • More than 6 months since prior coronary or peripheral artery bypass grafting
  • More than 28 days since prior investigational agents for prostate cancer
  • No concurrent agents that interact with cytochrome P450 3A4
  • No concurrent warfarin for anticoagulation

    • Concurrent low molecular weight heparin injection allowed
  • No concurrent medications that would prolong QTc
  • No other concurrent antineoplastic agents
  • Concurrent zoledronate for bone metastases or hypercalcemia allowed
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00118092

United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
National Cancer Institute (NCI)
Principal Investigator: Elisabeth Heath Mayo Clinic
  More Information

Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT00118092     History of Changes
Other Study ID Numbers: NCI-2012-01466  NCI-2012-01466  MAYO-MC0453  NCI-6651  CDR0000433492  MC0453  6651  N01CM62205 
Study First Received: July 8, 2005
Last Updated: October 7, 2013

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Genital Diseases, Male
Prostatic Diseases
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on January 23, 2017