Overview

This trial is active, not recruiting.

Condition prostate cancer
Treatments docetaxel, prednisone, adjuvant therapy, radiation therapy
Phase phase 2
Sponsor The University of Texas Health Science Center at San Antonio
Start date May 2006
End date May 2014
Trial size 50 participants
Trial identifier NCT00348816, CDR0000486733, UTHSC-045-0015-377

Summary

RATIONALE: Drugs used in chemotherapy, such as docetaxel and prednisone, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells. Docetaxel may make tumor cells more sensitive to radiation therapy. Giving docetaxel together with radiation therapy and prednisone after surgery may kill any tumor cells that remain after surgery.

PURPOSE: This phase II trial is studying how well giving docetaxel together with radiation therapy and prednisone works in treating patients who have undergone surgery for prostate cancer.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Endpoint classification safety/efficacy study
Intervention model single group assignment
Masking open label
Primary purpose treatment
Arm
(Experimental)
Docetaxel 20mg/m2/week IV every week during radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.
docetaxel Taxotere
Docetaxel 20mg/m2/week IV every week during standard of care radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.
prednisone
Docetaxel 20mg/m2/week IV every week during radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.
adjuvant therapy radical prostatectomy
radical prostatectomy as part of standard care
radiation therapy radiation therapy
Doses for standard care radiation therapy: The initial target volume will be the lower pelvis followed by a boost to the prostate fossa and immediate periprostatic tissue. The initial dose will be 4500 cGy. With the final boost, the total dose will be 6840-6900 cGy. (4500/25 plus 2340/13 or 2400/12) with a total of 37 or 38 fractions.
docetaxel Taxotere
Docetaxel 20mg/m2/week IV every week during radiation treatment (7 cycles). Post radiation: docetaxel 75mg/m2 IV every 21 days for 4 cycles plus prednisone 5mg PO BID QD.

Primary Outcomes

Measure
Rate of prostate-specific antigen (PSA) decline and the number of subjects reaching a PSA nadir of zero following the intervention.
time frame: 5 years

Secondary Outcomes

Measure
Progression-free survival based on PSA progression
time frame: 5 years
Overall survival
time frame: 5 years
Correlation between velocity of subsequent PSA failure and survival
time frame: 5 years

Eligibility Criteria

Male participants at least 18 years old.

Inclusion Criteria: - Histologically confirmed prostate cancer - Prostate-specific antigen (PSA) level > 0.2 ng/mL after radical prostatectomy performed ≥ 6 weeks ago - No lymph node-positive prostate cancer - No documented metastatic disease - CT scan of the abdomen and pelvis negative (within the past 6 months) - No bone pain OR negative bone scan (within the past 6 months) - ECOG performance status 0-2 - Absolute neutrophil count ≥ 1,500/mm³ - Platelet count ≥ 100,000/mm³ - Hemoglobin ≥ 9 g/dL - Bilirubin normal - ALT and AST ≤ 1.5 times upper limit of normal - Alkaline phosphatase normal - Fertile patients must use effective contraception - No peripheral neuropathy > grade 1 - No other malignancy within the last 5 years that could affect the diagnosis or assessment of prostate cancer - No serious illness with a life expectancy of < 5 years - No concurrent medical, psychological, or social circumstance that would preclude study compliance - No history of severe hypersensitivity reaction to docetaxel or other drugs formulated with polysorbate 80 Exclusion Criteria: - No prior orchiectomy - No prior chemotherapy regimen for this disease - No prior pelvic radiotherapy - No pre- or postoperative androgen manipulation, such as luteinizing hormone-releasing hormone agonists, antiandrogens (flutamide, bicalutamide, or nilutamide), or finasteride - Preoperative androgen manipulation for a duration of ≤ 3 months allowed - No prior immunotherapy - No prior strontium chloride Sr 89, samarium Sm 153 lexidronam pentasodium, or other systemic radioisotopes - No concurrent filgrastim (G-CSF) or sargramostim (GM-CSF) - No concurrent herbal or alternative regimens including, but not limited to, any of the following: - Saw palmetto - PC-SPES - Shark cartilage - No other concurrent investigational agents - No other concurrent chemotherapy, immunotherapy, or hormonal therapy (except for replacement steroids)

Additional Information

Official title A Phase II Study to Assess the Feasibility and Activity of Concomitant Radiation and Docetaxel Chemotherapy Followed by Docetaxel Chemotherapy in Prostate Cancer Patients With a Persistent or Rising PSA After Radical Prostatectomy
Description OBJECTIVES: Primary - Determine the rate of prostate-specific antigen (PSA) decline and the number of patients reaching a PSA nadir of zero after treatment with chemoradiotherapy comprising docetaxel and external-beam radiotherapy followed by docetaxel and prednisone in patients with hormone-naive prostate cancer who have a persistent or rising PSA after radical prostatectomy. Secondary - Determine the tolerability of this regimen in these patients. - Determine the progression-free survival, based on PSA progression, of these patients. - Determine the overall survival of patients treated with chemoradiotherapy for rising PSA after radical prostatectomy. - Determine if the velocity of subsequent PSA failure impacts survival of these patients. Tertiary - Document subsequent therapy for patients whose previous treatment has failed and if there is a response to that therapy. OUTLINE: Patients receive docetaxel IV over 1 hour on days 1, 8, 15, 22, 29, 36, and 43 and undergo external-beam radiotherapy on days 1-5, 8-12, 15-19, 22-26, 29-33, 36-40, and 43-47. Beginning within 6 weeks after completion of chemoradiotherapy, patients receive docetaxel IV over 1 hour on day 1 and oral prednisone twice daily on days 1-21. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed at 1 month, every 4 months for 2 years, and then every 6 months for 3 years. PROJECTED ACCRUAL: A total of 50 patients will be accrued for this study.
Trial information was received from ClinicalTrials.gov and was last updated in December 2013.
Information provided to ClinicalTrials.gov by The University of Texas Health Science Center at San Antonio.