Skip to content

Hormone Therapy and Ipilimumab in Treating Patients With Advanced Prostate Cancer

A Phase II Immunotherapeutic Trial: Combination Androgen Ablative Therapy and CTLA-4 Blockade as a Treatment for Advanced Prostate Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00170157
Enrollment
112
Registered
2005-09-15
Start date
2004-06-30
Completion date
2013-06-30
Last updated
2017-05-15

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

Conditions

Prostate Adenocarcinoma, Prostate Carcinoma, Recurrent Prostate Carcinoma, Stage III Prostate Cancer, Stage IV Prostate Cancer

Brief summary

RATIONALE: Androgens can cause the growth of prostate cancer cells. Antihormone therapy, such as leuprolide acetate, goserelin, flutamide, or bicalutamide may lessen the amount of androgens made by the body. Monoclonal antibodies, such as ipilimumab, can block cancer growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry cancer-killing substances to them. Giving antihormone therapy together with ipilimumab may kill more tumor cells. PURPOSE: This randomized phase II trial is study how well giving hormone therapy and ipilimumab together works in treating patients with advanced prostate cancer.

Detailed description

OBJECTIVES: I. To generally test whether the addition of CTLA-4 blockade can enhance clinical treatment response in advance prostate cancer patients compared with treatment with AA therapy alone. II. To specifically examine whether concomitant AA therapy + MDX-010 can be used to prolong the progression-free interval in advanced prostate cancer patients compared with inductive short-term AA therapy alone. III. To specifically examine whether concomitant AA therapy + MDX-010 can be used to enhance initial PSA responses in advanced prostate cancer patients compared with inductive short-term AA therapy alone. IV. To specifically examine whether delayed MDX-010 can be used to induce PSA response in patients experiencing disease progression following cessation of short-term AA therapy. V. To generally examine whether MDX-010 enhances host immune response that might be involved in conferring treatment advantages to patients receiving AA therapy. VI. To specifically examine whether MDX-010 potentiates T-cell responses in advanced prostate cancer patients initiating inductive short-term AA therapy. VII. To further examine whether treatment induced T-cell responses correlate with clinical response to treatment. VIII. To examine whether short-term AA there (+/- MDX-010) induces the appearance of newly emigrated T or immature and/or B cells. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive either leuprolide acetate intramuscularly (IM) or goserelin subcutaneously (SC) on days 0, 28, and 56. Patients also receive oral flutamide three times daily or oral bicalutamide once daily. Treatment with antiandrogen (AA) therapy continues for 3 months (3-4 months for patients who initiated AA therapy \<= 21 days prior to enrollment) in the absence of disease progression or unacceptable toxicity. Patients receive ipilimumab IV over 90 minutes on day 7 (within 7-28 days post-initiation of AA therapy for patients who initiated AA therapy \<= 21 days prior to enrollment) of AA therapy. Arm II: Patients receive AA therapy as in arm I. Patients may crossover to arm II in the case of disease progression. After completion of study treatment, patients are followed periodically.

Interventions

DRUGBicalutamide

Given orally

DRUGFlutamide

Given orally

DRUGGoserelin Acetate

Given SC

DRUGIpilimumab

Given IV

DRUGLeuprolide Acetate

Given IM

OTHERPharmacological Study

Correlative study

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* NOTE: All values must be obtained =\< 14 prior to study entry * Histologically confirmed adenocarcinoma of the prostate staged within 180 days of study enrollment, \>cT2cN0/M0 stage with or without metastatic disease, with the exclusion of central nervous system (CNS) metastases; includes post radical prostatectomy patients with a rising PSA * An initial PSA \>= 4.0 ng/mL (Hybritech Assay) * For those patients who have received hormone therapy =\< 21 days, a documented PSA of \>= 4.0 prior to initiation of hormone therapy is acceptable. * For patients who are post radical prostatectomy, a rising PSA is acceptable. * Adequate organ function defined as: WBC \>= 3,000/uL; platelets \>= 75,000/uL; total bilirubin =\< 1.5 mg/dL; transaminases =\< 2.5 x upper limit of normal (ULN); serum creatine =\< 2.0 mg/dL or calculated creatinine clearance \>= 60 mL/min * ECOG performance status of 0-2 * Able to understand and sign informed consent

Exclusion criteria

* Underlying other serious medical condition which, in the opinion of the investigator precludes study participation; this includes immune-suppressive disease such as AIDS or autoimmune disorders such as multiple sclerosis, lupus, or myasthenia gravis * Patients not recovered from major infections and/or surgical procedures * Prior hormonal therapy \> 21 days prior to enrollment, including estrogens, LH/RH agonists, or antiandrogens * Recent (=\< 3 months of informed consent) usage of immune-suppressive medication including steroids, Immuran, Cyclosporin; topical or inhalational steroid use is permissible * Prior systemic chemotherapy * Prior radiation therapy to the prostate * Prior malignancy, unless the patient has been cancer-free for five years or more * Uncontrolled underlying medical or psychiatric illness, or serious active infections * Patient unwilling to complete all required follow-up visits * History of motor neuropathy considered of the autoimmune origin (e.g. Guillian-Barre Syndrome) * Concurrent malignancy, except for adequately treated basal cell or squamous cell skin cancer * For patients who elect to undergo the baseline transrectal needle biopsy of the prostate, current usage of systemic anticoagulation therapy, i.e. heparin or Coumadin or inability to discontinue aspirin, aspirin-containing products or ibuprofen for seven days prior to the prostate biopsies required for this study * No other investigational drugs will be allowed during the study * Other chemotherapy, radiation therapy, immunotherapy, hormonal therapy, or biologic therapy may not be used while the patient is on study

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Progression-free at 18 Months18 months from the start of AA therapyPSA progression is defined as a rise in PSA to \>4.0 ng/mL demonstrated twice in measurements taken two weeks apart.

Secondary

MeasureTime frameDescription
Percent of Participants With Undetectable Prostate-specific Antigen (PSA) Response3 monthsPercent of participants who had undetectable PSA at 3 months on the initially assigned treatment arm (prior to crossing over).

Countries

United States

Participant flow

Recruitment details

112 participants were recruited between June 2004 and June 2009 at Mayo Clinic.

Pre-assignment details

All participants were initially randomized to either arm.

Participants by arm

ArmCount
Entire Study Population
All participants initially randomized.
112
Total112

Baseline characteristics

CharacteristicEntire Study Population
Age, Customized
<= 39
0 participants
Age, Customized
40-49
5 participants
Age, Customized
50-59
29 participants
Age, Customized
60-69
48 participants
Age, Customized
>= 70
30 participants
Region of Enrollment
United States
112 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
112 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
107 / 110
serious
Total, serious adverse events
10 / 110

Outcome results

Primary

Number of Participants Progression-free at 18 Months

PSA progression is defined as a rise in PSA to \>4.0 ng/mL demonstrated twice in measurements taken two weeks apart.

Time frame: 18 months from the start of AA therapy

ArmMeasureValue (NUMBER)
Entire Study PopulationNumber of Participants Progression-free at 18 Months0 participants
Secondary

Percent of Participants With Undetectable Prostate-specific Antigen (PSA) Response

Percent of participants who had undetectable PSA at 3 months on the initially assigned treatment arm (prior to crossing over).

Time frame: 3 months

Population: 105 participants had follow-up PSA information; those without a follow-up PSA were excluded from this analysis.

ArmMeasureValue (NUMBER)
Entire Study PopulationPercent of Participants With Undetectable Prostate-specific Antigen (PSA) Response55 percentage of participants
Androgen Ablative (AA) Then AA Therapy + MDX-010Percent of Participants With Undetectable Prostate-specific Antigen (PSA) Response39 percentage of participants

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