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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00634647
Other study ID # 080074
Secondary ID 08-C-0074
Status Completed
Phase Phase 2
First received
Last updated
Start date February 19, 2008
Est. completion date May 1, 2012

Study information

Verified date August 2018
Source National Institutes of Health Clinical Center (CC)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Background:

Satraplatin is an experimental drug that may be of benefit to patients with prostate cancer.

Prednisone is approved for treating prostate cancer.

The gene excision repair cross-complementing rodent repair deficiency complementation group 1 (ERCC1) helps repair cell damage caused by satraplatin. It is possible that patients who have a variant of this gene will not benefit from treatment with satraplatin because the drug will not be able to damage the cancer cells effectively.

Objectives:

To determine if satraplatin may help treat prostate cancer in patients with certain variants of the ERCC1 gene.

Eligibility:

Patients with advanced androgen-independent prostate cancer whose disease has not responded to hormonal therapy or at least one type of chemotherapy and whose x-rays, scans or other tests have shown their cancer to be spreading.

Design:

Participants have a blood test to determine if they have a variant of the ERCC1 gene.

Participants take satraplatin by mouth every day for 5 consecutive days out of every 35 days and prednisone by mouth every day. These 35-day treatment cycles may continue for 6 months or longer, depending on the benefits and side effects of the treatment.

During the treatment period, patients undergo the following tests and procedures:

- Blood tests on days 1 of the treatment cycle.

- Weekly blood draws for the first 3 treatment cycles.

- Imaging studies (e.g., bone scans, computed tomography (CT) scans) every two cycles to determine the response to treatment.

- Surgical or medical suppression of testosterone in patients whose cancer cells continue to grow due to exposure to the hormone....


Description:

Background:

- Satraplatin is an oral, third-generation platinum analog that has recently been shown to increase prostatic specific antigen (PSA) decline rates and progression-free survival in hormone-resistant prostate cancer.

- Satraplatin acts by binding to deoxyribonucleic acid (DNA) forming intra- and interstrand cross links (DNA adducts), resulting in cell-cycle arrest in G2 phase and eventual apoptosis. One of the mechanisms that bring about resistance to platinum-based chemotherapy is removal of the platinum-DNA adducts by DNA repair pathways, called nucleotide excision repair (NER) and base excision repair (BER) pathways.

- Polymorphisms in the DNA repair genes causing impaired NER and BER capability has recently been shown in some cancers, including head and neck squamous cell carcinoma, non-small cell lung carcinoma, and ovarian carcinoma to predict better treatment outcome and response to platinum treatment.

Objectives:

- Primary objective of this single arm study is to determine if the presence of ERCC1 variant gene polymorphism which is involved with DNA damage repair may be associated with an impact on the progression-free survival of patients with metastatic prostate cancer.

- Secondary objectives of this study includes demonstration of biologic effect by the drug satraplatin in the patient and in the tumor whenever possible, by obtaining tissue biopsy and white blood cell collections, to determine correlation of biologic or clinical effects with PSA progression, evaluate correlations between genotype expression, repair pathways and clinical events, and obtain laboratory correlates which will include pharmacogenetic analysis of prostate cancer patients with genotyping using Polymerase chain reaction (PCR) followed by either restriction fragment length polymorphism or direct sequencing to genotype single nucleotide polymorphisms of ERCC1, x-ray repair cross-complementing protein 1 (XRCC1), and poly (ADP-ribose) polymerase 1 (PARP1).

Eligibility:

- Patients with metastatic androgen-independent prostate cancer.

- Had docetaxel-based chemotherapy, but no more than 1 previous cytotoxic chemotherapy line.

- Good organ function.

Design:

- Phase II trial with single stage design and a planned accrual of 66 patients.

- Progression-free survival will be determined using a Fisher's exact test.

- Will treat all enrolled patients with oral satraplatin 80 mg/m^2 dose on days 1-5 of every 35-days cycle plus Prednisone 5 mg twice daily every 35 days.

- Genotyping will be performed after the first 20 patients to determine if the proportion for wild-type ERCC1 and variants follow a 20:80 split.


Recruitment information / eligibility

Status Completed
Enrollment 24
Est. completion date May 1, 2012
Est. primary completion date February 1, 2011
Accepts healthy volunteers No
Gender Male
Age group 18 Years and older
Eligibility - INCLUSION CRITERIA:

A. Patients must have histopathological confirmation of prostate cancer by the Laboratory of Pathology of the National Cancer Institute (NCI) or Pathology Department of the National Naval Medical Center or Walter Reed Army Medical Center prior to entering this study. Patients whose pathology specimens are not available may be enrolled in the trial if the patient has a clinical course consistent with prostate cancer and available documentation from an outside pathology laboratory of the diagnosis. In cases where original tissue blocks or archival biopsy material is available, all efforts should be made to have the material forwarded to the research team for use in correlative studies.

B. Patients must have metastatic progressive androgen-independent prostate cancer. There must be radiographic evidence of disease (by computed tomography (CT) scan or bone scan) after primary treatment that has continued to progress despite hormonal agents. Progression requires that a measurable lesion is expanding, new lesions have appeared, and/or that prostatic specific antigen (PSA) is continuing to rise on successive measurements. Patients must have progressive disease after receiving 1 prior docetaxel-based cytotoxic chemotherapy. Patients on flutamide for the prior 6 months must have disease progression at least 4 weeks after withdrawal. Patients on bicalutamide or nilutamide must have progression at least 6 weeks after withdrawal.

C. Patients may only have received 1 prior cytotoxic chemotherapy. For the purpose of this study, multiple courses of a taxane-based regimen may count as a single regimen. Multiple courses of a non-taxane agent or a combination chemotherapy regimen, administered in a similar fashion may count as a single regimen.

D. Patients must have a life expectancy of more than 3 months.

E. Patients must have a performance status of 0 to 2 according to the Eastern Cooperative Oncology Group (ECOG) criteria.

F. Patients must have adequate organ function as defined below:

Leukocytes greater than or equal to 3,000/microl.

Absolute Neutrophil Count greater than or equal to 1,500/microl.

Platelets greater than or equal to 100,000/microl.

Total bilirubin less than or equal to 1.5 times institutional upper limits of normal (Except patients with Gilbert's disease who may proceed despite elevated total bilirubin).

Aspartate aminotransferase (AST)serum glutamic oxaloacetic transaminase(SGOT) and alanine aminotransferase (ALT)serum glutamic pyruvic transaminase (SGPT) less than or equal to 2.5 times institutional upper limit of normal

Creatinine less than or equal to 1.5 times institutional upper limits of normal.

OR

Creatinine clearance greater than or equal to 60 mL/min/1.73 m^2 for patients with creatinine levels above institutional normal.

G. Patients must have recovered from any acute toxicity related to prior therapy, including surgery. Toxicity should be <= grade 1 or returned to baseline.

H. Hormonal profile: all patients who have not undergone bilateral surgical castration must continue suppression of testosterone production by appropriate usage of gonadotropin releasing hormone (GnRH) agonists.

I. Patients must not have any ongoing malignancies requiring active therapy.

J. Patients must be able to understand and sign an informed consent form.

K. Concurrent use of bisphosphonates will be allowed if patients have previously been on it; if patients are not on bisphosphonates at the time of study enrollment, bisphosphonates may be started at cycle 2.

L. Patients who require hematopoietic growth factor support (e.g. epogen, darbepoetin), but not myeloid growth factors (except after cycle 1 day 1 if clinically indicated), non-steroidal anti-inflammatory drug (NSAIDs), and other maintenance medications prior to study entry will be allowed to continue their supportive therapies.

M. Results from embryo-fetal development indicated that satraplatin should be considered a teratogen in women of childbearing potential and hazardous in respect to spermatogenesis for men. For this reason, men must agree to use adequate contraception (abstinence; hormonal or barrier method of birth control) prior to study entry and for the duration of study participation.

N. Patients must be able to swallow capsules.

O. Patients on chronic stable steroids (equivalent to no more than 10 mg of prednisone daily dose) used for non-cancer treatment may be allowed on study.

EXCLUSION CRITERIA:

A. Patients who have had prior treatment with satraplatin or other platinum containing compounds will be excluded.

B. Patients may not be receiving any other investigational agents.

C. Patients with known active brain metastases are excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.

D. History of allergic reactions attributed to compounds of similar chemical or biologic composition to satraplatin or prednisone.

E. Uncontrolled intercurrent illness including, but not limited to ongoing or active serious infection, symptomatic congestive heart failure, unstable angina pectoris, or psychiatric illness/social situations that would limit patient compliance with study requirements.

F. Prior radiation therapy to greater than 30 percent of the bone marrow, or who have received strontium-89, rhenium-186, or rhenium-188 will be excluded from this trial. Patients who have received prior radiotherapy must have recovered from acute toxicity due to radiation. Patients who have received samarium-153 are eligible for the study because samarium has a significantly reduced half-life compared to aforementioned isotopes.

G. Patients with immune deficiency are at increased risk of lethal infections when treated with marrow-suppressive therapy. Therefore, human immunodeficiency virus (HIV)-positive patients are excluded from the study.

H. Patients with a history of major gastrointestinal surgery or pathology likely to influence absorption of oral medications, like bypass surgeries, Whipple's procedure, or any surgery that would impair reliable absorption of oral drugs.

I. Patients with a disease where corticosteroids are contraindicated, e.g. active gastric or duodenal ulcer, or poorly controlled insulin dependent diabetes. Patients with well-controlled insulin-dependent diabetes mellitus may be considered, providing they understand their glucose levels will increase, and their insulin dose will require adjusting.

J. Because no dosing or adverse event data are currently available on the use of satraplatin in patients less than 18 years of age, children are excluded from this study.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Satraplatin
80 mg/m^2 days 1-5 of every 35 day cycle
prednisone
5 mg twice daily every 35 days

Locations

Country Name City State
United States National Institutes of Health Clinical Center, 9000 Rockville Pike Bethesda Maryland
United States Associates in Oncology and Hematology Rockville Maryland

Sponsors (1)

Lead Sponsor Collaborator
National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

References & Publications (3)

Catalona WJ, Smith DS. Cancer recurrence and survival rates after anatomic radical retropubic prostatectomy for prostate cancer: intermediate-term results. J Urol. 1998 Dec;160(6 Pt 2):2428-34. — View Citation

Moul JW. Prostate specific antigen only progression of prostate cancer. J Urol. 2000 Jun;163(6):1632-42. Review. — View Citation

Zelefsky MJ, Ben-Porat L, Scher HI, Chan HM, Fearn PA, Fuks ZY, Leibel SA, Venkatraman ES. Outcome predictors for the increasing PSA state after definitive external-beam radiotherapy for prostate cancer. J Clin Oncol. 2005 Feb 1;23(4):826-31. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Progression Free Survival. Time between the start of therapy and progression. Progression is defined by the Response Evaluation Criteria in Solid Tumors (RECIST) criteria. Progressive Disease is at least a 20% increase in the sum of the longest diameter (LD) of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions. 15 months
Secondary Number of Participants With Adverse Events Assessed by the Common Terminology Criteria in Adverse Events (CTCAE v3.0) Here is the count of participants with serious and non-serious adverse events assessed by the Common Terminology Criteria in Adverse Events (CTCAE v3.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned. Date treatment consent signed to date off study, approximately 57 months.
Secondary Median Overall Survival (OS) Overall Survival is the time between the first day of treatment to the day of death. time between the first day of treatment to the day of death, approximately 15.7 months
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