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Docetaxel, Androgen Deprivation and Proton Therapy for High Risk Prostate Cancer

A Phase II Study of Proton-Based Radiation Therapy With Elective Pelvic Nodal Irradiation, Concomitant Docetaxel, and Adjuvant Androgen Deprivation for High-Risk Prostate Adenocarcinoma

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01040624
Acronym
PR05
Enrollment
77
Registered
2009-12-29
Start date
2009-12-31
Completion date
2022-04-11
Last updated
2023-10-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Keywords

Prostate Cancer, Proton Radiation

Brief summary

The purpose of this study is to see what effects, good and/or bad, proton based radiation combined with low dose chemotherapy and hormonal therapy, has on patients and their cancer.

Interventions

RADIATION< 15% risk of + LN

Total of 54 Cobalt gray equivalent (CGE) over 30 treatments to prostate + seminal vesicles (SV), then proton boost total of 23.4-27 CGE over 13-15 treatments to prostate +/- SV. Low dose docetaxel every week during radiation therapy (RT) followed by androgen deprivation therapy for 6 months.

RADIATION> 15% risk of + LN

Total of 45 Gy over 25 treatments to prostate + SV + LN, then proton boost total of 32.4-36 CGE over 18-20 treatments to prostate + SV. Low dose docetaxel every week during RT followed by androgen deprivation therapy for 6 months.

Sponsors

University of Florida
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

\* Adenocarcinoma of the prostate.

Exclusion criteria

* Previous prostate cancer treatment such as chemotherapy and/or pelvic radiation. * Active inflammatory bowel disease (diverticulitis, Crohn's disease or ulcerative colitis) affecting the rectum. (Non-active diverticulitis and Crohn's disease not affecting the rectum are allowed.) * History of hip replacement. * Prior intrapelvic surgery. This includes the following: * Transrectal or rectal surgery other than polypectomy or hemorrhoid removal or banding * Transabdominal pelvic surgery * Bladder surgery * Prior myocardial infarction (MI) or congestive heart failure (CHF). * Taking Saw Palmetto or methotrexate and unable or unwilling to discontinue its use during radiation.

Design outcomes

Primary

MeasureTime frameDescription
Acute Grade 3 or Higher Treatment-related Toxicity Rate.6 months after the completion of radiation therapyNumber of participants that experienced acute grade 3 or higher, treatment-related toxicity based on CTCAE version 3.0 criteria.

Secondary

MeasureTime frame
Collect and Analyze Quality of Life, Treatment-related Late Morbidity, Disease Control, and Survival Outcome Parameters.After radiation: every 6 months for 3 years, then annually for 20 years
Collect and Analyze Treatment, Biologic and Diagnostic Information That May Impact Quality of Life, Disease Control, Morbidity and/or Survival Outcomes.After radiation: every 6 months for 3 years, then annually for 20 years

Countries

United States

Participant flow

Participants by arm

ArmCount
HR-A
\< 15% risk of + LN \< 15% risk of + LN: Total of 54 CGE over 30 treatments to prostate + SV, then proton boost total of 23.4-27 CGE over 13-15 treatments to prostate +/- SV. Low dose docetaxel every week during RT followed by androgen deprivation therapy for 6 months.
58
HR-B
\> 15% risk of + LN \> 15% risk of + LN: Total of 45 Gy over 25 treatments to prostate + SV + LN, then proton boost total of 32.4-36 CGE over 18-20 treatments to prostate + SV. Low dose docetaxel every week during RT followed by androgen deprivation therapy for 6 months.
19
Total77

Baseline characteristics

CharacteristicHR-BHR-ATotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
15 Participants42 Participants57 Participants
Age, Categorical
Between 18 and 65 years
4 Participants16 Participants20 Participants
Age, Continuous69 years68 years68 years
Region of Enrollment
United States
19 participants58 participants77 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
19 Participants58 Participants77 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
13 / 5811 / 19
serious
Total, serious adverse events
1 / 583 / 19

Outcome results

Primary

Acute Grade 3 or Higher Treatment-related Toxicity Rate.

Number of participants that experienced acute grade 3 or higher, treatment-related toxicity based on CTCAE version 3.0 criteria.

Time frame: 6 months after the completion of radiation therapy

ArmMeasureValue (NUMBER)
HR-AAcute Grade 3 or Higher Treatment-related Toxicity Rate.1 participants
HR-BAcute Grade 3 or Higher Treatment-related Toxicity Rate.3 participants
p-value: <0.0001Chi-squared
Secondary

Collect and Analyze Quality of Life, Treatment-related Late Morbidity, Disease Control, and Survival Outcome Parameters.

Time frame: After radiation: every 6 months for 3 years, then annually for 20 years

Secondary

Collect and Analyze Treatment, Biologic and Diagnostic Information That May Impact Quality of Life, Disease Control, Morbidity and/or Survival Outcomes.

Time frame: After radiation: every 6 months for 3 years, then annually for 20 years

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026