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Hypo-fractionated Postoperative IMRT in Prostate Cancer

S

Scientific Institute for Research Hospitalization and Healthcare (IRCCS)

Status

Completed

Conditions

Prostate Cancer

Treatments

Radiation: Hypo-fractionated postoperative IMRT-SIB

Study type

Interventional

Funder types

Other

Identifiers

NCT03233672
Iside-PP-2

Details and patient eligibility

About

To report the outcome of hypo-fractionated radiotherapy after radical prostatectomy (RP) for prostate cancer (PCa) using IMRT-SIB. 124 patients with PCa at high risk of relapse after RP or diagnosis of biochemical relapse were included. Patients received 62.5 Gy to the prostate bed (PB) and 45 Gy to pelvis nodes in 25 fractions. Androgen suppressive therapy was prescribed based on NCCN risk categories. Median follow-up was 30 months.

Full description

To report the outcome of hypo-fractionated radiation therapy after radical prostatectomy (RP) for prostate cancer (PCa) using intensity-modulated radiation treatment with simultaneous integrated boost (IMRT-SIB).

One hundred and twenty-four patients with PCa at high risk of relapse after RP or diagnosis of biochemical relapse were included in this phase II study (adjuvant: 106 patients, salvage: 18 patients). All patients received 62.5 Gy to the prostate bed (PB) and 45 Gy to pelvis nodes in 25 fractions. Androgen suppressive therapy was prescribed based on NCCN risk categories. Acute and late toxicities were recorded and evaluated according to RTOG (Radiation Therapy Oncology Group) criteria and RTOG-EORTC (European Organization for Research and Treatment of Cancer) scale, respectively.

Median follow-up was 30 months (13-92).

Enrollment

124 patients

Sex

Male

Ages

18 to 79 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • > 18 years
  • prior radical prostatectomy with or without lymphadenectomy
  • high-risk patients (positive surgical margins, and/or extracapsular extension, and/or seminal vescicle invasion, and/or probability of nodal metastasis > 7% calculated by the Roach formula after pelvic lymph node dissection with ≤ 13 nodes removed, and/or presence of any positive pelvic nodes) or patients with biochemical relapse (initial post-surgery serum PSA equal or above 0.2 ng/mL with a second confirmatory PSA of the same value)
  • ECOG performance status 0-1
  • adequate bone marrow function (hemoglobin concentration > 8 g/dl, white blood cell count > 3,000/ mm³, platelet count > 75,000/ mm³)
  • pre-treatment computed tomography (CT) scan or magnetic resonance imaging (MRI) of the abdomen and pelvis
  • bone scan
  • informed consent

Exclusion criteria

  • prior pelvic radiotherapy
  • distant metastases
  • macroscopic residual tumor
  • pelvic or para-aortic nodes at re-evaluation imaging after surgery
  • secondary malignancies
  • genetic syndromes of hyper-radio-sensitivity
  • chronic inflammatory bowel disease
  • previously treated with androgen deprivation therapy
  • previously treated with chemotherapy for prostate cancer

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

124 participants in 1 patient group

Hypo-fractionated postoperative IMRT-SIB
Other group
Description:
All patients underwent combined, intensified and modulated radiotherapy for five days a week with the following doses: 62.5 Gy to the prostate bed and 45 Gy to pelvis nodes in 25 fractions.
Treatment:
Radiation: Hypo-fractionated postoperative IMRT-SIB

Trial contacts and locations

0

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Data sourced from clinicaltrials.gov

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