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Prostate CancerPhase 2NCT00945477

Pazopanib as Second Line Therapy in Patients With Metastatic Prostate Cancer Refractory to Total Androgen Blockade

A Phase 2 study testing Pazopanib (GW786034) in people with Prostate Cancer, run by Illinois CancerCare, P.C. at 4 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

A growing body of literature supports the role of angiogenesis in the development and spread of a variety of human cancers including prostate cancer. Vascular endothelial growth factor (VEGF) expression is low in normal prostate tissue, but markedly increased in tumor tissues, and has a positive association with tumor… Read more about this study

Who is it for?
Ages 18 to 85 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Pazopanib (GW786034)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
4 sitesUnited States
Study dates
Jul 2009to Oct 2012
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of adenocarcinoma of the prostate histology, currently on total androgen blockage with a bicalutamide.
  • Subjects must provide written informed consent prior to administration of pazopanib or the performance of any study-specific procedures or assessments, and must be willing to comply with treatment and follow up. Procedures conducted as part of the subject's routine clinical management (e.g., blood count, imaging study) and obtained prior to signing of informed consent may be utilized for screening or baseline purposes provided these procedures are conducted as specified in the protocol. Note: It is not necessary that informed consent be obtained within the protocol-specified screening window.
  • Received no prior second line hormone therapy or any chemotherapy. No prior bevacizumab, mTOR inhibitor, sunitinib, sorafenib or other VEGF TKI) for advanced or metastatic prostate cancer.
  • Must have metastatic diagnosis, meaning disease beyond the prostate gland.
  • A progressing PSA of ≥ 3, the PSA will be measured in ≥ 14 days.
  • KPS of ≥ 70
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  • Age ≥ 18 years old
  • Adequate organ system functions:
  • Absolute neutrophil count (ANC) ≥ 1.5 X 109/L
  • Hemoglobin ≥ 9 g/dL
  • Platelets ≥ 100 X 109/L
  • International normalized ratio (INR) ≤ 1.2 X upper limit of normal (ULN)
  • Partial thromboplastin time (PTT) ≤ 1.2 X ULN
  • Total bilirubin ≤ 1.5 X ULN
  • AST and ALT ≤ 2.5 X ULN
  • Calculated creatinine clearance ≥ 30 mL/min
  • Urine Protein to Creatinine Ratio (UPC)2 < 1
  • Total serum calcium concentration < 12.0mg/dL
  • Subjects may not have had a transfusion within 7 days of screening assessment.
  • If UPC ≥ 1, then a 24-hour urine protein must be assessed. Subjects must have a 24-hour urine protein value < 1 g to be eligible.
  • Left ventricular ejection fraction (LVEF) ≥ 55% as assessed by echocardiography or multigated acquisition (MUGA) scan. The same modality used at baseline must be applied for subsequent evaluations.

Who cannot join

  • Subjects meeting any of the following criteria must not be enrolled in the study:
  • History of another malignancy.
  • Note: Subjects who have had another malignancy and have been disease-free for 3 years, or subjects with a history of completely resected non-melanomatous skin carcinoma or successfully treated in situ carcinoma are eligible.
  • History or clinical evidence of central nervous system (CNS) metastases.
  • Note: Subjects who have previously-treated CNS metastases (surgery ± radiotherapy, radiosurgery, or gamma knife) and meet all 3 of the following criteria are eligible:
  • Are asymptomatic and,
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  • Have had no evidence of active CNS metastases for ≥ 6 months prior to enrollment and,
  • Have no requirement for steroids or enzyme-inducing anticonvulsants (EIAC).
  • Clinically significant gastrointestinal abnormalities including, but not limited to:
  • Malabsorption syndrome,
  • Major resection of the stomach or small bowel that could affect the absorption of study drug,
  • Active peptic ulcer disease,
  • Inflammatory bowel disease,
  • Ulcerative colitis, or other gastrointestinal conditions with increased risk of perforation,
  • History of abdominal fistula, gastrointestinal perforation, or intra abdominal abscess within 28 days prior to beginning study treatment.
  • Presence of uncontrolled infection.
  • Prolongation of corrected QT interval (QTc) > 480 milliseconds (msecs).
  • History of any one or more of the following cardiovascular conditions within the past 12 months:
  • Cardiac angioplasty or stenting,
  • Myocardial infarction,
  • Unstable angina,
  • Symptomatic peripheral vascular disease,
  • Class III or IV congestive heart failure, as defined by the New York Heart Association (NYHA).
  • History of cerebrovascular accident (CVA) including transient ischemic attack (TIA).
  • History of pulmonary embolism or untreated deep venous thrombosis (DVT) within the past 6 months. Note: Subjects with recent DVT who have been treated with therapeutic anticoagulating agents for at least 6 weeks are eligible.
  • Poorly controlled hypertension [defined as systolic blood pressure (SBP) of ≥150mmHg or diastolic blood pressure (DBP) of ≥ 90 mmHg].
  • Note: Initiation or adjustment of antihypertensive medication(s) is permitted prior to study entry. Blood pressure must be re-assessed on two occasions that are separated by a minimum of 24 hours. The mean SBP/DBP values from each blood pressure assessment must be < 150/90mmHg in order for a subject to be eligible for the study. See Section 6.3.2 for instruction on blood pressure measurement and obtaining mean blood pressure values.
  • Prior major surgery or trauma within 28 days prior to first dose of study drug and/or presence of any non-healing wound, fracture, or ulcer.
  • Evidence of active bleeding or bleeding diathesis
  • Hemoptysis within 6 weeks of first dose of study drug.
  • Any serious and/or unstable pre-existing medical, psychiatric, or other conditions that could interfere with subject's safety, obtaining informed consent or compliance to the study.
  • Prohibited medications within 28 days unless the half-life of the medication is longer than 28 days, will not be permitted.
  • Use of an investigational agent, including an investigational anti-cancer agent, within 28 days or 5 half-lives, whichever is longer, prior to the first dose of study drug.
  • Prior use of an investigational or licensed drug that targets VEGF or VEGF receptors (e.g., bevacizumab, sunitinib, sorafenib, etc), or are mTOR inhibitors (eg. temsirolimus, everolimus, etc).
  • Is now undergoing and/or has undergone in the last 4 weeks immediately prior to first dose of study drug, (surgery, tumor embolization, chemotherapy, radiation therapy, immunotherapy, or biological therapy)
  • Any ongoing toxicity from prior anti-cancer therapy that is > Grade 1 and/or that is progressing in severity.
  • Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to pazopanib.

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Illinois CancerCare

    Bloomington, Illinois, 61701

  • Illinois CancerCare

    Ottawa, Illinois, 61350

  • Illinois CancerCare

    Pekin, Illinois, 61554

  • Illinois Cancer Care

    Peoria, Illinois, 61615

Other trials in United States

About this study

Official title: A Study of Pazopanib as Second Line Therapy in Patients With Metastatic Prostate Cancer Who Have Received Prior Therapy With an LHRH Agonist.

A growing body of literature supports the role of angiogenesis in the development and spread of a variety of human cancers including prostate cancer.

  • Vascular endothelial growth factor (VEGF) expression is low in normal prostate tissue, but markedly increased in tumor tissues, and has a positive association with tumor stage and grade
  • Plasma VEGF levels are significantly elevated in patients with hormone refractory prostate cancer (HRPC) compared to those patients with localized disease and have been associated with disease progression in other cancer patient population.
  • The Cancer and Leukemic Group-B demonstrated that VEGF levels correlate with survival.

Pazopanib is a potent multi-target receptor tyrosine kinase inhibitor of vascular endothelial growth factor receptors.

Read the detailed description

VEGF expression is low in all normal prostate tissue, but markedly increased in tumor tissue, and has a positive association with MVD (micro vessel density) tumor stage, grade, and disease-specific survival in patients with prostate cancer. VEGF is known to be under the influence of HIF-1α, which is also up-regulated in the majority of prostate cancer tissue. It has been shown that complete androgen blockade down-regulates VEGF expression via the HIF-1α pathway with concomitant up-regulation of thrombospondin and induction of endothelial cell apoptosis. The VEGF pathway appears to be the dominant vascular formation pathway in prostate cancer with bFGF having a lesser role.

Pazopanib , a hydrochloride salt, is a small molecule inhibitor of several tyrosine kinases, ie: VEGF 1, 2, 3, c-KIT and platelet-derived growth factor receptors. The broad blockade of the VEGF receptors should interfere with the VEGF/VEGF-receptor pathway, and have an impact on cell growth.

According to the NCCN guidelines , first line therapy for metastatic prostate cancer is considered total androgen blockade, either utilizing orchiectomy and/or LH/RH agonists plus Casodex.

Second line therapy would depend on the patient's response to first line therapy, urgency of a response, and the location of metastatic disease.

Pazopanib has been explored in several settings. It has recently been looked at with Bicalutamide in hormone refractory prostate cancer. The second study was with earlier disease, i.e. D-0 relapse androgen-sensitive patients. The University of Chicago has a study looking at the sub-population of prostate cancer patients that have a "chemical relapse" in which patients are given one shot of Lupron, and if the PSA is adequately suppressed, the patients are randomized between pazopanib and placebo.

Conditions
Prostate Cancer
Being tested
Pazopanib (GW786034)
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Pazopanib (GW786034)Drug

    Also called Pazopanib monohydrochloride salt GW786034

    Pazopanib 800 mg daily x 12 weeks

Study groups in NCT00945477
Study groupRoleWhat they receive
Advanced prostate cancer, treatment, pazopanibExperimentalPazopanib
Receives: Drug: Pazopanib (GW786034)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Response Rate at 12 Weeks

    Response rate defined as 50% decrease in the Prostate Specific Antigen (PSA) level at week 12 compared to baseline

    Measured: 12 weeks

Secondary outcomes (1)
  1. Number Adverse Events, Grades 1-5 Using NCI-CTCAE v 3.0

    Safety was evaluated by documentation of Adverse Events (AEs), by assessment of clinical laboratory findings, and by physicial examination, including measurement of vital signs and weight in all eleven subjects.

    Measured: 0-12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jul 2009 (estimated)
  2. Study startJul 2009
  3. Primary completionOct 2012
  4. Study completionOct 2012

Why it stopped: Slow enrollment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00945477
Sponsor's protocol ID
ILCC #1
Status last verified
Oct 2013
First submitted
22 Jul 2009
Last updated
18 Nov 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Pazopanib (GW786034) in people with Prostate Cancer, run by Illinois CancerCare, P.C. at 4 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 21 inclusion and 37 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 18 Nov 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Nov 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Response Rate at 12 Weeks (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Nov 2013.

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