AzTrials
AzTrials

Prostate CancerPhase 3NCT00394511

Radiation Therapy After Prostatectomy in Treating Patients With Stage III Prostate Cancer

A Phase 3 study testing low-LET photon therapy in people with Prostate Cancer, run by National Cancer Institute (NCI).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Randomized phase III trial to compare treatment with or without adjuvant radiation therapy in men with stage III prostate cancer who have had radical prostatectomy and lymphadenectomy recently. Radiation therapy uses high-energy x-rays to damage tumor cells and may be an effective treatment for prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
low-LET photon therapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
408 participants
Where
No sites listed yet
Study dates
Aug 1988to Dec 2006
Phase
Phase 3
Are there results?
None posted in the registry

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 years and older
  • Men only
  • Adult, Older adult

PROTOCOL ENTRY CRITERIA:

--Disease Characteristics--

  • Pathologically documented Stage C (T3 N0 M0) adenocarcinoma of the prostate following radical prostatectomy and pelvic lymphadenectomy for clinical Stage A/B disease
  • Ineligible for SWOG protocols of higher priority
  • At least 1 of the following on pathologic examination:
  • Presence of cancer in the seminal vesicles
  • Evidence of cancer at the inked surgical margin of the prostate
  • Extension of tumor beyond the prostatic capsule
  • Negative preoperative metastatic survey within 6 months prior to registration, including the following:
  • Normal bone scan
  • No palpable evidence of extraprostatic tumor extension
  • Bilateral lymph node dissection histologically negative for cancer
  • Nodal sampling not required with the following stage/biopsy specimen Gleason score/preoperative PSA:
  • Stage T1a/2-6/<10 ng/ml
  • Stage T1b-c/2-5/<10 ng/ml
  • Stage T2a/2-6/<10 ng/ml
  • Stage T2b/2-6/<6 ng/ml
  • Stage T2c/2-6/<4 ng/ml
  • Free from the following postoperative complications:
  • Total urinary incontinence
  • Intraoperative rectal injury
  • persistent urinary extravasation
  • Pelvic infection
  • Concurrent registration on protocol SWOG-9205 (serum repository protocol) optional
  • Concurrent registration on protocol SWOG-8994 (quality-of-life study) required of English-speaking and Spanish-speaking patients enrolled by SWOG

--Patient Characteristics--

  • Age: Any age
  • Performance status: SWOG 0-2
  • Life expectancy: At least 2 years
  • Hematopoietic:
  • WBC at least institutional LLN
  • Platelets at least institutional LLN
  • Hepatic: SGOT no more than 2 x ULN
  • Other: No second malignancy within 5 years except adequately treated nonmelanomatous skin cancer

--Prior Concurrent Therapy--

  • Chemotherapy: No prior chemotherapy for prostate cancer
  • Endocrine therapy: No more than 3 months of hormonal therapy prior to prostatectomy allowed
  • Radiotherapy: No prior radiotherapy for prostate cancer
  • Surgery: Radical prostatectomy and pelvic lymphadenectomy within 16 weeks prior to registration required

About this study

Official title: Phase III Randomized Evaluation of Adjuvant Radiotherapy vs No Adjuvant Therapy Following Radical Prostatectomy and Pelvic Lymphadenectomy in Surgical Stage C Adenocarcinoma of the Prostate

Randomized phase III trial to compare treatment with or without adjuvant radiation therapy in men with stage III prostate cancer who have had radical prostatectomy and lymphadenectomy recently. Radiation therapy uses high-energy x-rays to damage tumor cells and may be an effective treatment for prostate cancer.

Read the detailed description

OBJECTIVES:

  1. Compare disease-free survival rates of patients randomly assigned to adjuvant external-beam radiotherapy vs. no adjuvant therapy following radical prostatectomy and pelvic lymphadenectomy for surgical Stage C (T3 N0 M0) adenocarcinoma of the prostate.

II. Determine the qualitative and quantitative toxicities associated with this adjuvant therapy.

OUTLINE: Randomized study. Randomization takes place when the patient is physically able to begin treatment, any time within 16 weeks after surgery.

Arm I: Radiotherapy. Irradiation of the prostatic bed using megavoltage equipment with effective photon energies of greater than 4 MV.

Arm II: No further treatment.

Conditions
Prostate Cancer
Being tested
low-LET photon therapy
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • low-LET photon therapyProcedure or surgery

Study groups in NCT00394511
Study groupRoleWhat they receive
Arm IExperimentalRadiotherapy. Irradiation of the prostatic bed using megavoltage equipment with effective photon energies of greater than 4 MV.
Receives: Procedure: low-LET photon therapy
Arm IINo interventionNo further treatment.

Timeline

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

  1. First posted1 Nov 2006 (estimated)
  2. Study startAug 1988
  3. Primary completionDec 2006

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
408 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00394511
Sponsor's protocol ID
NCI-2012-02483
Other IDs
SWOG-8794, CAN-NCIC-PR2, CLB-9493, EST-9887, NCCTG-895251, RTOG-9019, INT-0086, CDR0000075112
Status last verified
Oct 2006
First submitted
31 Oct 2006
Last updated
11 Feb 2013
Results posted
No

Publications

  • Thompson IM, Paradelo JC, Crawford ED, Coltman CA, Blumenstein B. An opportunity to determine optimal treatment of pT3 prostate cancer: the window may be closing. Urology. 1994 Dec;44(6):804-11. doi: 10.1016/s0090-4295(94)80161-4. No abstract available.

    PubMed 7985307
  • Swanson GP, Thompson IM, Tangem C, et al.: Phase III randomized study of adjuvant radiation therapy versus observation in patients with pathologic T3 prostate cancer (SWOG 8794). [Abstract] Int J Radiat Oncol Biol Phys 63 (Suppl 1): A-1, S1, 2005.

  • Thompson IM Jr, Tangen CM, Paradelo J, Lucia MS, Miller G, Troyer D, Messing E, Forman J, Chin J, Swanson G, Canby-Hagino E, Crawford ED. Adjuvant radiotherapy for pathologically advanced prostate cancer: a randomized clinical trial. JAMA. 2006 Nov 15;296(19):2329-35. doi: 10.1001/jama.296.19.2329.

    PubMed 17105795

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing low-LET photon therapy in people with Prostate Cancer, run by National Cancer Institute (NCI).

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

Who may be eligible to take part?

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: finished, as of the sponsor's last update on 11 Feb 2013. Status can change between updates, so confirm with the study contact before making plans.

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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00394511, which also lists 3 linked publications.

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 11 Feb 2013.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in