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Hormone Therapy and Intensity-Modulated Radiation Therapy in Treating Patients With Metastatic Prostate Cancer

Androgen Deprivation and Localized Radiotherapy to Metastases in Patients With Oligometastatic Hormone - Sensitive Prostate Cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00544830
Enrollment
29
Registered
2007-10-16
Start date
2006-07-18
Completion date
2027-02-15
Last updated
2026-05-15

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

Conditions

PSA Level Greater Than Two, Stage IV Prostate Adenocarcinoma AJCC v7

Brief summary

This phase II trial studies how well hormone therapy and intensity-modulated radiation therapy work in treating patients with prostate cancer that has spread to other places in the body. Androgens can cause the growth of prostate cancer cells. Anti-hormone therapy using goserelin, leuprolide acetate, or bicalutamide, may lessen the amount of androgens made by the body. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. Giving hormone therapy and intensity-modulated radiation therapy may work better in treating patients with prostate cancer.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate the time to prostate-specific antigen (PSA) relapse in patients with oligometastatic (=\< 5 lesions) hormone-sensitive prostate cancer treated with 36 weeks of androgen deprivation therapy and localized radiotherapy to all known tumor sites. II. To assess the prostate-specific-antigen (PSA) and objective response rate to treatment with 36 weeks of androgen deprivation and localized radiotherapy in patients with oligometastatic hormone-sensitive prostate cancer. III. To assess the toxicity of 36 weeks of androgen deprivation and localized radiation therapy to oligometastases in patients with oligometastatic hormone-sensitive prostate cancer. IV. In appropriate situations evaluate the feasibility and toxicities of using helical tomotherapy image-guided intensity-modulated radiation therapy (IMRT) to treat oligometastatic sites. OUTLINE: ANDROGEN DEPRIVATION THERAPY (ADT): Patients not currently on ADT receive goserelin acetate subcutaneously (SC) or leuprolide acetate via injection once every 4 or 12 weeks and bicalutamide orally (PO) once daily (QD). Treatment repeats every 12 weeks for up to 3 courses in the absence of disease progression or unacceptable toxicity. Patients already receiving ADT at the time of enrollment continue treatment until they have received 36 weeks of therapy. RADIATION THERAPY: Patients achieving PSA normalization after initiation of androgen deprivation therapy undergo intensity-modulated radiation therapy daily for 2-7 weeks during or after completion of androgen deprivation therapy. After completion of study treatment, patients are followed up every 4 weeks for 2 years, then every 3 months after year 2, and then every 6 months thereafter.

Interventions

DRUGBicalutamide

Given PO

DRUGGoserelin Acetate

Given SC

RADIATIONIntensity-Modulated Radiation Therapy

Undergo IMRT

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGLeuprolide Acetate

Given via injection

Sponsors

City of Hope Medical Center
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with histologically proven diagnosis of adenocarcinoma of the prostate stage N1, N2, N3, M1a, M1b, M1c with =\< 5 metastatic lesions; if the diagnosis of metastasis in the lymph node is based solely on imaging computed tomography (CT) scan or magnetic resonance imaging (MRI), the longitudinal diameter of the lymph node has to be \>= 2.0 cm; if the lymph node is positive on positron emission tomography (PET) or ProstaScint scan, the longitudinal diameter of the lymph node on CT scan or MRI has to be \>= 1.5 cm * Patients who have measurable disease must have had X-rays, scans or physical examination used for tumor measurement completed within 28 days prior to registration; patients must have non-measurable disease assessed within 42 days prior to registration * Patients must have had documented PSA of \> 2 prior to onset of androgen deprivation * Patients might have received up to 36 weeks of adjuvant androgen deprivation therapy and up to 36 weeks of androgen deprivation therapy for metastatic disease prior to enrollment to this study; patients may be on androgen deprivation for metastatic disease at the time of enrollment to the protocol; adjuvant therapy must have been completed at least 2 years before androgen deprivation for metastatic disease and patients must remain hormone sensitive * Prior radiation therapy for metastatic disease is not allowed * Prior chemotherapy for metastatic disease is not allowed; prior neoadjuvant and adjuvant chemotherapy is allowed; patients must have recovered from all acute side-effects related to previous systemic therapy * Patients are allowed to receive one prior systemic non-chemotherapeutic treatment (i. e. immunotherapy, receptor tyrosine kinase inhibitor, antiangiogenic agent, differentiation agent) for recurrent or metastatic disease; patients must have recovered from all acute side-effects related to previous systemic therapy * Use of bisphosphonates is allowed at the discretion of treating physician * Patients must be capable of understanding the nature of the trial and must give written informed consent * Patients must have a World Health Organization (WHO) performance status of 0, 1, or 2

Exclusion criteria

* Patients with unstable or severe intercurrent medical conditions or active, uncontrolled infection * Patients with a history of orchiectomy * Patients undergoing therapy with other investigational agents; patients must have recovered from all acute effects of previously administered investigational agents and sufficient time must have elapsed since last administration to ensure the drug interactions not occur during this study * Patients with a history of brain metastases or who currently have treated or untreated brain metastases * Patients who have demonstrated refractoriness to hormone therapy with luteinizing hormone-releasing hormone (LHRH) agonist; refractoriness is defined as occurrence of one of the following while on therapy with LHRH agonist: increase in PSA by 25% over baseline (to at least \> 2 ng/ml) on two consecutive PSA measurements, 20% increase in the sum of longest diameters of target measurable lesions over smallest sum observed (over baseline if no decrease during therapy) using the same techniques as baseline, clear worsening of any non-measurable disease, reappearance of any lesion that had disappeared, appearance of any new lesion

Design outcomes

Primary

MeasureTime frameDescription
Time to Prostate-specific Antigen (PSA) RelapseEnd-of-therapy until PSA reached pre-treatment level or 10 (whichever was lower)Time from the date of the last dose of bicalutamide or the last day of radiation therapy (whichever comes later) until the date criteria are met for PSA relapse. PSA relapse after completion of initial 36 weeks of androgen deprivation therapy is defined as an increase in PSA value to above pre-therapy level, or to \> 10, whichever is smaller. For example, a patient with pre-treatment PSA level of 40 will resume androgen deprivation therapy when PSA level is \> 10, while a patient with pre-treatment PSA level of 3 will resume androgen deprivation therapy when PSA level is \> 3.

Secondary

MeasureTime frameDescription
Patients Who Achieved PSA Nadir of < 0.2 at 36 Weeks.During the time period between on-study PSA to off-study PSA, up to 36 weeks.Number of Patients who achieved PSA nadir of \< 0.2 at 36 weeks.
Rate of Treatment Failure (no PSA Threshold Below 4 ng/dl, or no PSA Below Baseline Level Before LHRH Treatment).Off-treatment PSA measurement date minus on-study PSA measurement date, up to 36 weeks.Treatment failures: Count and percent of patients NOT reaching PSA concentration in serum either below 4 ng/dl or below baseline before LHRH treatment .
Length of Follow-upPatients are evaluated for disease on day 1 of each of three 12-week cycles. After the last cycle of anti-androgen therapy, patients are assessed every four weeks until PSA relapse occurs, up to 61.4 monthsLength of follow-up in weeks to off-study date. Patients are treated for 36 weeks (+/- 2 weeks) with androgen deprivation therapy. Patients are evaluated for disease on day 1 of each of three 12-week cycles. After the last cycle of anti-androgen therapy, patients are assessed every four weeks until PSA relapse occurs, up to 264.8 weeks (61.4 months; 5.1 years). Patients will remain off-treatment until they meet the criteria for re-treatment with androgen deprivation therapy, whereupon they will be taken off of the protocol. After patients are taken off protocol, we will do a chart review for long-term outcomes.
Count of Patients Remaining Off of Therapyafter 36 week LHRH treatment window.Patients who remained off of therapy, in remission, out of the number of patients with metastases limited to pelvic lymph nodes.
Follow-up of the 8 Patients With Metastases Limited to Pelvic Lymph Nodes.Patients are followed on day one of each of three 12-week periods. After completion of therapy, patients are followed every four weeks until PSA relapse, up to 46.4 months.Length of follow-up of the 8 patients with metastases limited to pelvic lymph nodes, months. Patients are followed on day one of each of three 12-week periods. After completion of therapy, patients are followed every four weeks until PSA relapse, up to 46.4 months.
CR Without ADT in Patients With Metastases Limited to Pelvic Lymph Nodes.after 36 weeks of LHRH therapy.Number of patients remaining in complete remission without androgen deprivation therapy in patients with metastases limited to pelvic lymph nodes.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORCy A Stein

City of Hope Medical Center

Participant flow

Recruitment details

The first patient was consented on July 18, 2006. The last eligible patient was consented on August 25, 2010. Patients were recruited at City of Hope National Medical Center.

Participants by arm

ArmCount
Treatment (Androgen Therapy, Radiation Therapy)
ADT: Patients not currently on ADT receive goserelin acetate SC or leuprolide acetate via injection once every 4 or 12 weeks and bicalutamide PO QD. Treatment repeats every 12 weeks for up to 3 courses in the absence of disease progression or unacceptable toxicity. Patients already receiving ADT at the time of enrollment continue treatment until they have received 36 weeks of therapy. RADIATION THERAPY: Patients achieving PSA normalization after initiation of androgen deprivation therapy undergo intensity-modulated radiation therapy daily for 2-7 weeks during or after completion of androgen deprivation therapy. Bicalutamide: Given PO Goserelin Acetate: Given SC Intensity-Modulated Radiation Therapy: Undergo IMRT Laboratory Biomarker Analysis: Correlative studies Leuprolide Acetate: Given via injection
29
Total29

Baseline characteristics

CharacteristicTreatment (Androgen Therapy, Radiation Therapy)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
19 Participants
Age, Categorical
Between 18 and 65 years
10 Participants
Age, Continuous66.9 years
Baseline Prostate Specific Antigen (PSA)11.4 ng/ml
Metastases limited to pelvic lymph nodes8 Participants
Region of Enrollment
United States
29 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
29 Participants

Adverse events

Event typeEG000
affected / at risk
other
Total, other adverse events
28 / 29
serious
Total, serious adverse events
1 / 29

Outcome results

Primary

Time to Prostate-specific Antigen (PSA) Relapse

Time from the date of the last dose of bicalutamide or the last day of radiation therapy (whichever comes later) until the date criteria are met for PSA relapse. PSA relapse after completion of initial 36 weeks of androgen deprivation therapy is defined as an increase in PSA value to above pre-therapy level, or to \> 10, whichever is smaller. For example, a patient with pre-treatment PSA level of 40 will resume androgen deprivation therapy when PSA level is \> 10, while a patient with pre-treatment PSA level of 3 will resume androgen deprivation therapy when PSA level is \> 3.

Time frame: End-of-therapy until PSA reached pre-treatment level or 10 (whichever was lower)

Population: Metastatic prostate cancer patients treated with androgen deprivation.

ArmMeasureValue (MEDIAN)
Treatment (Androgen Therapy, Radiation Therapy)Time to Prostate-specific Antigen (PSA) Relapse16.5 month
Secondary

Count of Patients Remaining Off of Therapy

Patients who remained off of therapy, in remission, out of the number of patients with metastases limited to pelvic lymph nodes.

Time frame: after 36 week LHRH treatment window.

Population: Patients with metastases limited to pelvic lymph nodes

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Androgen Therapy, Radiation Therapy)Count of Patients Remaining Off of Therapy7 Participants
Secondary

CR Without ADT in Patients With Metastases Limited to Pelvic Lymph Nodes.

Number of patients remaining in complete remission without androgen deprivation therapy in patients with metastases limited to pelvic lymph nodes.

Time frame: after 36 weeks of LHRH therapy.

Population: Patients with metastases limited to pelvic lymph nodes.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Androgen Therapy, Radiation Therapy)CR Without ADT in Patients With Metastases Limited to Pelvic Lymph Nodes.4 Participants
Secondary

Follow-up of the 8 Patients With Metastases Limited to Pelvic Lymph Nodes.

Length of follow-up of the 8 patients with metastases limited to pelvic lymph nodes, months. Patients are followed on day one of each of three 12-week periods. After completion of therapy, patients are followed every four weeks until PSA relapse, up to 46.4 months.

Time frame: Patients are followed on day one of each of three 12-week periods. After completion of therapy, patients are followed every four weeks until PSA relapse, up to 46.4 months.

Population: Patients with metastases limited to pelvic lymph nodes.

ArmMeasureValue (MEDIAN)
Treatment (Androgen Therapy, Radiation Therapy)Follow-up of the 8 Patients With Metastases Limited to Pelvic Lymph Nodes.14.7 month
Secondary

Length of Follow-up

Length of follow-up in weeks to off-study date. Patients are treated for 36 weeks (+/- 2 weeks) with androgen deprivation therapy. Patients are evaluated for disease on day 1 of each of three 12-week cycles. After the last cycle of anti-androgen therapy, patients are assessed every four weeks until PSA relapse occurs, up to 264.8 weeks (61.4 months; 5.1 years). Patients will remain off-treatment until they meet the criteria for re-treatment with androgen deprivation therapy, whereupon they will be taken off of the protocol. After patients are taken off protocol, we will do a chart review for long-term outcomes.

Time frame: Patients are evaluated for disease on day 1 of each of three 12-week cycles. After the last cycle of anti-androgen therapy, patients are assessed every four weeks until PSA relapse occurs, up to 61.4 months

Population: Patients with hormone sensitive prostate cancer

ArmMeasureValue (MEDIAN)
Treatment (Androgen Therapy, Radiation Therapy)Length of Follow-up111.4 week
Secondary

Patients Who Achieved PSA Nadir of < 0.2 at 36 Weeks.

Number of Patients who achieved PSA nadir of \< 0.2 at 36 weeks.

Time frame: During the time period between on-study PSA to off-study PSA, up to 36 weeks.

Population: Patients who achieved PSA nadir of \< 0.2 at 36 weeks.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Androgen Therapy, Radiation Therapy)Patients Who Achieved PSA Nadir of < 0.2 at 36 Weeks.25 Participants
Secondary

Rate of Treatment Failure (no PSA Threshold Below 4 ng/dl, or no PSA Below Baseline Level Before LHRH Treatment).

Treatment failures: Count and percent of patients NOT reaching PSA concentration in serum either below 4 ng/dl or below baseline before LHRH treatment .

Time frame: Off-treatment PSA measurement date minus on-study PSA measurement date, up to 36 weeks.

Population: Metastatic prostate cancer patients treated with androgen deprivation therapy.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Androgen Therapy, Radiation Therapy)Rate of Treatment Failure (no PSA Threshold Below 4 ng/dl, or no PSA Below Baseline Level Before LHRH Treatment).15 Participants

Source: ClinicalTrials.gov · Data processed: May 16, 2026