SB-715992 in Treating Patients With Metastatic Prostate Cancer That Did Not Respond to Docetaxel or Paclitaxel

National Cancer Institute (NCI)

Status and phase

Completed

Phase 2

Conditions

Stage IV Prostate Cancer

Adenocarcinoma of the Prostate

Recurrent Prostate Cancer

Treatments

Other: pharmacological study

Drug: ispinesib

Other: laboratory biomarker analysis

Study type

Interventional

Funder types

NIH

Identifiers

NCT00096499

NCI-2012-02630

SWOG-S0418

U10CA032102 (U.S. NIH Grant/Contract)

CDR0000393206 (Registry Identifier)

Details and patient eligibility

About

Drugs used in chemotherapy, such as SB-715992, work in different ways to stop tumor cells from dividing so they stop growing or die. This phase II trial is studying how well SB-715992 works in treating patients with metastatic prostate cancer that did not respond to docetaxel or paclitaxel

Full description

PRIMARY OBJECTIVES:

I. Determine the prostate-specific antigen response to SB-715992 in patients with hormone-refractory, androgen-independent metastatic prostate cancer that failed prior taxane-based chemotherapy.

SECONDARY OBJECTIVES:

I. Determine the median overall survival and median progression-free survival of patients treated with this drug.

II. Determine the objective response rate (confirmed and unconfirmed, complete and partial response) in patients with measurable disease treated with this drug.

III. Determine the qualitative and quantitative toxic effects of this drug in these patients.

IV. Determine, preliminarily, the pharmacokinetics and mechanism of activity of this drug in these patients.

OUTLINE: This is a multicenter study.

Patients receive SB-715992 IV over 1 hour on day 1. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.

Patients are followed every 3 months for 1 year and then every 6 months for 2 years.

PROJECTED ACCRUAL: A total of 20-40 patients will be accrued for this study within 1.3-2.7 months.

Enrollment

40 patients

Sex

Male

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

Histologically confirmed adenocarcinoma of the prostate
- Metastatic disease (N1 and/or M1)
- Unresponsive or refractory to androgen-deprivation therapy
Must have received one, and only one, prior taxane-containing (docetaxel or paclitaxel) chemotherapy regimen for metastatic disease that was discontinued due to disease progression, intolerance, or patient request
Evidence of disease progression as defined by ≥ 1 of the following:
- Progression of measurable disease
- Progression of evaluable disease
- Rising prostate-specific antigen (PSA)
  - At least 2 consecutive rises in PSA levels, each taken ≥ 7 days apart
  - PSA ≥ 5 ng/mL
Must have pre-study PSA > 5 ng/mL
Measurable or evaluable disease
- Soft tissue disease that has been irradiated within the past 2 months is not considered measurable disease
- Soft tissue disease that has been irradiated ≥ 2 months prior to study entry is considered measurable disease provided the lesion progressed after radiation
Surgical or medical castration required
- If luteinizing hormone-releasing hormone (LHRH) agonists (leuprolide or goserelin) or LHRH antagonists (abarelix) were used, then must continue use during study therapy
No prior or concurrent brain metastases (treated or untreated)
- If clinical suspicion of brain metastases, must meet the following criteria:
  - Brain CT scan or MRI negative for metastatic disease within the past 56 days
  - No new symptoms since radiographic evaluation
Performance status - Zubrod 0-2
Absolute granulocyte count ≥ 1,500/mm^3
Platelet count ≥ 100,000/mm^3
Hemoglobin ≥ 9 g/dL
Bilirubin normal
SGOT and SGPT ≤ 2.5 times upper limit of normal (ULN)
Creatinine ≤ 1.5 times ULN
Creatinine clearance ≥ 40 mL/min
No symptomatic congestive heart failure
No unstable angina pectoris
No cardiac arrhythmia
Fertile patients must use effective contraception
No peripheral neuropathy ≥ grade 2
No prior allergic reaction attributed to compounds of similar chemical or biological composition to SB-715992
No ongoing or active infection
No psychiatric illness or social situation that would preclude study participation
No other uncontrolled illness
No other malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or adequately treated stage I or II cancer in complete remission
No colony-stimulating factors during the first course of study therapy
No concurrent anticancer biologic therapy
See Disease Characteristics
At least 4 weeks since prior chemotherapy and recovered
See Disease Characteristics
At least 4 weeks since prior flutamide or ketoconazole
At least 6 weeks since prior bicalutamide or nilutamide
No concurrent anticancer hormonal therapy except LHRH agonist or antagonist for patients who have not undergone orchiectomy
See Disease Characteristics
At least 4 weeks since prior radiotherapy and recovered
Prior samarium Sm 153 lexidronam pentasodium allowed
No prior strontium chloride Sr 89
No prior radiotherapy to ≥ 30% of bone marrow
No concurrent anticancer radiotherapy
See Disease Characteristics
At least 3 weeks since prior surgery and recovered
At least 2 weeks since prior and no concurrent use of any of the following CYP3A4 inhibitors or inducers:
- Clarithromycin
- Erythromycin
- Troleandomycin
- Rifampin
- Rifabutin
- Rifapentine
- Itraconazole
- Ketoconazole
- Fluconazole (dose > 200 mg/day)
- Voriconazole
- Nefazodone
- Fluvoxamine
- Verapamil
- Diltiazem
- Grapefruit juice
- Bitter orange
- Phenytoin
- Carbamazepine
- Phenobarbital
- Oxcarbazepine
- Hypericum perforatum (St. John's wort)
- Modafinil
At least 6 months since prior and no concurrent amiodarone
No other investigational drugs for 4 weeks before, during, and for 2 weeks after study therapy
No other concurrent anticancer cytotoxic therapy
No other concurrent anticancer therapy
No concurrent combination antiretroviral therapy for HIV-positive patients
Concurrent enrollment on SWOG-9205 (central prostate cancer serum repository protocol) allowed