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Sunitinib Plus Prednisone In Patients With Metastatic Castration-Resistant Prostate Cancer After Failure Of Docetaxel Chemotherapy

A Multicenter, Randomized, Double-Blind, Phase 3 Study Of Sunitinib Plus Prednisone Versus Prednisone In Patients With Progressive Metastatic Castration-Resistant Prostate Cancer After Failure Of A Docetaxel-Based Chemotherapy Regimen

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00676650
Acronym
SUN 1120
Enrollment
873
Registered
2008-05-13
Start date
2008-07-31
Completion date
2011-12-31
Last updated
2013-03-08

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

Conditions

Prostatic Neoplasms

Keywords

Docetaxel-refractory mCRPC, Second-line treatment with sunitinib and prednisone

Brief summary

This study will compare the safety and efficacy of sunitinib in combination with prednisone versus placebo and prednisone in patients that have metastatic castration-resistant prostate cancer that has progressed after treatment with a docetaxel-containing chemotherapy regimen. This is a second-line study.

Interventions

DRUGPrednisone

5 mg BID, oral

DRUGsunitinib

37.5 mg/day, oral, administered on a continuous daily dosing regimen

DRUGPlacebo

37.5 mg/day, oral, administered on a continuous daily dosing regimen

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Histologically or cytologically confirmed adenocarcinoma of the prostate. * Progressive, metastatic castration-resistant prostate cancer after failure of docetaxel chemotherapy (resistant or intolerant). * Progressive disease based on PSA progression, RECIST, or positive bone scan. * ECOG 0 or 1.

Exclusion criteria

* Prior treatment with sunitinib and/or more than 1 prior chemotherapy regimen in the metastatic disease setting. * Chemotherapy within 3 weeks. * Impending complications from bone metastases. * Ongoing urinary obstruction. * Cardiac dysfunction, QTc \>470 msec. * CNS involvement.

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS)Baseline up to 32 monthsOS is the duration from randomization to death. For participants who were alive, overall survival was censored at the last contact. OS (in months) calculated as (date of death minus \[-\] date of randomization plus \[+\] 1) divided (/) 30.4.

Secondary

MeasureTime frameDescription
Percent of Participants With Objective Response (OR)Baseline, every 8 weeks up to 123 weeksOR defined as the percent (%) of participants with confirmed Complete Response (CR) (disappearance of all target lesions) or Partial Response (PR) (\>=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum longest dimensions) according to Response Evaluation Criteria in Solid Tumors (RECIST), relative to the full analysis population. Confirmed responses were those that persist on repeat imagining study \>= 4 weeks after initial documentation of response.
Duration of Response (DR)Baseline, every 8 weeks up to 123 weeksTime in weeks from the first documentation of objective tumor response to objective tumor progression or death due to any cause. Duration of tumor response was calculated as (the date of the first documentation of objective tumor progression or death due to cause - the date of the first CR or PR that was subsequently confirmed plus 1 divided by 7.02. DR calculated for the subgroup of participants with a confirmed objective tumor response
Progression-Free Survival (PFS)Baseline, every 8 weeks up to 123 weeksPFS is the period from randomization until disease progression or death on study. PFS is censored on the date of last tumor assessment documenting absence of progressive disease. PFS (weeks) calculated as (first event date - randomization date + 1)/7.02
Change From Baseline in Functional Assessment of Cancer Therapy-Prostate (FACT-P)Baseline, every 4 weeks up to 123 weeksFACT-P is a validated, self-administered instrument used to assess health-related quality of life and prostate cancer-specific symptoms. Scores ranged from 0 (not at all) to 4 (very much). It is 27-item FACT-General and 12 items for the prostate cancer specific concerns. The 27 items in FACT-G are grouped into 4 domains: physical well-being, social/family well-being, emotional well-being and functional well-being. The 12 prostate cancer symptoms items focus on pain (3 items), urination problems (3 items), sexual functions (2 items), weight loss, appetite, overall comfort, and bowel movement.
Change From Baseline in Euro Quality of Life (EQ-5D)- Health State Profile Utility ScoreBaseline, every 4 weeks up to 123 weeksEQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state (confined to bed). Overall scores range from 0 to 1, with lower scores representing a higher level of dysfunction.
Change From Baseline in Pain SeverityDay 1 through Day 7 every 28 days (every cycle) up to 29 monthsPain severity recorded on a numerical scale ranging from 0 (no pain) to 10 (pain as bad as you can imagine). Higher scores indicated greater level of pain. The pain score for each cycle averaged for the 7 days.

Countries

Australia, Belgium, Brazil, Canada, China, Czechia, Denmark, Finland, France, Germany, Israel, Italy, Peru, Poland, Portugal, Slovakia, South Korea, Spain, Sweden, Taiwan, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Sunitinib and Prednisone
Sunitinib capsules administered orally as a continuous daily dose in a continuous regimen, expressed as 4-week cycles; starting dose of 37.5 milligrams (mg) with option to increase dose to 50 mg at Cycle 3. Prednisone administered continuously at 5 mg orally twice a day (BID) as either a tablet, solution or concentrated solution.
584
Placebo and Prednisone
Matched placebo administered orally as a continuous daily dose expressed as 4-week cycles; with a starting dose of 37.5 milligrams (mg) with option to increase dose to 50 mg at Cycle 3 plus prednisone administered continuously at 5 mg orally BID as either a tablet, solution or concentrated solution.
289
Total873

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event15921
Overall StudyDeath4514
Overall StudyGlobal deterioration of health status6631
Overall StudyLost to Follow-up01
Overall StudyObjective progression or relapse189140
Overall StudyOther1410
Overall StudyProtocol Violation31
Overall StudyRandomized but not treated34
Overall StudyStudy terminated by sponsor5743
Overall StudyWithdrawal by Subject4824

Baseline characteristics

CharacteristicSunitinib and PrednisonePlacebo and PrednisoneTotal
Age, Customized
18 - 44 years
3 participants0 participants3 participants
Age, Customized
45 - 64 years
177 participants97 participants274 participants
Age, Customized
greater than or equal to (>=) 65 years
404 participants192 participants596 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
584 Participants289 Participants873 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
573 / 581256 / 285
serious
Total, serious adverse events
275 / 58186 / 285

Outcome results

Primary

Overall Survival (OS)

OS is the duration from randomization to death. For participants who were alive, overall survival was censored at the last contact. OS (in months) calculated as (date of death minus \[-\] date of randomization plus \[+\] 1) divided (/) 30.4.

Time frame: Baseline up to 32 months

Population: Full analysis (FA) population: all participants who were randomized, with study drug assignment designated according to initial randomization, regaradless of whether participant received study drug according to the randomization schedule.

ArmMeasureValue (MEDIAN)
Sunitinib and PrednisoneOverall Survival (OS)13.1 months
Placebo and PrednisoneOverall Survival (OS)11.8 months
p-value: 0.167895% CI: [0.762, 1.097]Log Rank
Secondary

Change From Baseline in Euro Quality of Life (EQ-5D)- Health State Profile Utility Score

EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state (confined to bed). Overall scores range from 0 to 1, with lower scores representing a higher level of dysfunction.

Time frame: Baseline, every 4 weeks up to 123 weeks

Population: Data not summarized, study terminated early

Secondary

Change From Baseline in Functional Assessment of Cancer Therapy-Prostate (FACT-P)

FACT-P is a validated, self-administered instrument used to assess health-related quality of life and prostate cancer-specific symptoms. Scores ranged from 0 (not at all) to 4 (very much). It is 27-item FACT-General and 12 items for the prostate cancer specific concerns. The 27 items in FACT-G are grouped into 4 domains: physical well-being, social/family well-being, emotional well-being and functional well-being. The 12 prostate cancer symptoms items focus on pain (3 items), urination problems (3 items), sexual functions (2 items), weight loss, appetite, overall comfort, and bowel movement.

Time frame: Baseline, every 4 weeks up to 123 weeks

Population: Data not summarized, study terminated early

Secondary

Change From Baseline in Pain Severity

Pain severity recorded on a numerical scale ranging from 0 (no pain) to 10 (pain as bad as you can imagine). Higher scores indicated greater level of pain. The pain score for each cycle averaged for the 7 days.

Time frame: Day 1 through Day 7 every 28 days (every cycle) up to 29 months

Population: Data not summarized, study terminated early

Secondary

Duration of Response (DR)

Time in weeks from the first documentation of objective tumor response to objective tumor progression or death due to any cause. Duration of tumor response was calculated as (the date of the first documentation of objective tumor progression or death due to cause - the date of the first CR or PR that was subsequently confirmed plus 1 divided by 7.02. DR calculated for the subgroup of participants with a confirmed objective tumor response

Time frame: Baseline, every 8 weeks up to 123 weeks

Population: Data not summarized, study terminated early

Secondary

Percent of Participants With Objective Response (OR)

OR defined as the percent (%) of participants with confirmed Complete Response (CR) (disappearance of all target lesions) or Partial Response (PR) (\>=30% decrease in the sum of the longest dimensions of the target lesions taking as a reference the baseline sum longest dimensions) according to Response Evaluation Criteria in Solid Tumors (RECIST), relative to the full analysis population. Confirmed responses were those that persist on repeat imagining study \>= 4 weeks after initial documentation of response.

Time frame: Baseline, every 8 weeks up to 123 weeks

Population: FA Population

ArmMeasureValue (NUMBER)
Sunitinib and PrednisonePercent of Participants With Objective Response (OR)6.1 percentage of participants
Placebo and PrednisonePercent of Participants With Objective Response (OR)1.8 percentage of participants
p-value: 0.0495% CI: [1, 19]Fisher Exact
Secondary

Progression-Free Survival (PFS)

PFS is the period from randomization until disease progression or death on study. PFS is censored on the date of last tumor assessment documenting absence of progressive disease. PFS (weeks) calculated as (first event date - randomization date + 1)/7.02

Time frame: Baseline, every 8 weeks up to 123 weeks

Population: FA Population

ArmMeasureValue (MEDIAN)
Sunitinib and PrednisoneProgression-Free Survival (PFS)24.1 weeks
Placebo and PrednisoneProgression-Free Survival (PFS)17.9 weeks
p-value: <0.00195% CI: [0.591, 0.89]Log Rank

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