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CompletedNCT00494546Updated Jun 29, 2007

High Versus Low Dose Supplemental External Radiation With Pd-103 for Prostate Cancer

A Phase 3 interventional study of Pd-103 with 20 vs 44 Gy supplemental beam XRT in Prostate Cancer, sponsored by VA Puget Sound Health Care System. Completed at 1 site in United States. Open to male participants aged 40 Years to 80 Years. Per ClinicalTrials.gov, last updated 2007-06-29.

Sponsored by VA Puget Sound Health Care System · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
568
Allocation
Randomized
Ages
40 Years to 80 Years
Sex
Male
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Study summary

Objective: The objective of this study is test the hypothesis that delivering a higher percentage of the radiation dose as external radiation versus implant will lead to higher tumor control rates.

Research design A total of 600 patients with AJC clinical stage T1-T2 prostatic carcinoma (Gleason grade 7 to 10 and/or PSA 10 to 20 ng/ml) will be randomized to treatment with 44 Gy versus 20 Gy external radiation plus a Pd-103 implant boost (90 Gy versus 105 Gy, respectively).

Read the detailed description

Objective: The objective of this study is test the hypothesis that delivering a higher percentage of the radiation dose as external radiation versus implant will lead to higher tumor control rates.

Research design A total of 600 patients with AJC clinical stage T1-T2 prostatic carcinoma (Gleason grade 7 to 10 and/or PSA 10 to 20 ng/ml) will be randomized to treatment with 44 Gy versus 20 Gy external radiation plus a Pd-103 implant boost (90 Gy versus 105 Gy, respectively).

Methodology: Patients will be randomized by the method of random permuted blocks.

Cancer status will be monitored by serial serum PSA at 6, 12, 18 and 24 months and yearly thereafter. Treatment-related morbidity will be monitored by personal interview, using standard American Urologic Association and Radiation Therapy Oncology Group criteria at 1, 3, 6, 12 and 24 months. The primary endpoint will be based on serum PSA. A value above 1.0 ng/ml two years after treatment will be considered to have residual or recurrent cancer and to have failed therapy.

Findings: 566 patients have been randomized and the study was closed due to slowing accrual. A preliminary analysis shows similar morbidity between the treatment arms, and nearly identical cancer control rates between randomization arms.

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Conditions studied

  • Prostate Cancer

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Keywords

  • prostate
  • brachytherapy
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In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,400 are open to participants now.

This study's enrollment of 568 is above the median of 58 across 4,822 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

VA Puget Sound Health Care System is the lead sponsor of 25 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
40 Years to 80 Years
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • Males
  • Prostate cancer
  • PSA 10-20
  • Gleason score 7-10

Exclusion criteria

Exclusion Criteria:

  • Lymph nodes positive
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
568 participants (actual)

Interventions

  • ProcedurePd-103 with 20 vs 44 Gy supplemental beam XRT
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What researchers measure

Primary outcomes

  1. cancer control

    Time frame: 5-year post treatment

Secondary outcomes

  1. rectal and urinary morbidity

    Time frame: 2- and 5-year

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Study locations

1 site
  • VA Puget Sound
    Seattle, Washington 98108, United States
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References and documents

Publications

  • Wallner K, Merrick G, True L, Sherertz T, Sutlief S, Cavanagh W, Butler W. 20 Gy versus 44 Gy supplemental beam radiation with Pd-103 prostate brachytherapy: preliminary biochemical outcomes from a prospective randomized multi-center trial. Radiother Oncol. 2005 Jun;75(3):307-10. doi: 10.1016/j.radonc.2005.03.019. PubMed 16086912 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 29, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00494546
Lead sponsor
VA Puget Sound Health Care System
Collaborators
Schiffler Cancer Center
First posted
Jun 29, 2007
Start date
Jan 1999
Completion
Jun 2007
Last update
Jun 29, 2007

Study contacts

Kent E Wallner, MD
study chair · Puget Sound Health Care system

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2007. You cannot join it, but the record below documents what was studied.

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