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Prostate Cancer MetastaticPhase 2NCT01487863

Concurrent vs. Sequential Sipuleucel-T & Abiraterone Treatment in Men With Metastatic Castrate Resistant Prostate Cancer

A Phase 2 study testing sipuleucel-T and abiraterone acetate in people with Prostate Cancer Metastatic and Hormone Refractory Prostate Cancer, run by Dendreon at 21 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this study was to evaluate the impact of concurrent versus sequential administration of abiraterone acetate plus prednisone on the ability to manufacture sipuleucel-T (by assessing sipuleucel-T product parameters), and to assess the safety and efficacy of sipuleucel-T with concurrent or sequential… Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
sipuleucel-T and abiraterone acetate
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
69 participants
Where
21 sitesUnited States
Study dates
Dec 2011to Jun 2016
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • histologically documented prostate cancer confirmed by a pathology report from prostate biopsy or radical prostatectomy specimen
  • metastatic status as evidenced by imaging obtained </= 56 days prior to registration demonstrating bone metastasis or lymph node metastasis
  • castrate resistant prostate cancer: castrate levels of testosterone (</= 50 ng/dL); evidence of disease progression concomitant with surgical or medical castration
  • serum PSA >/= 2.0 ng/mL
  • castrate levels of testosterone (</= 50 ng/dL) achieved via medical or surgical castration
  • baseline Eastern Cooperative Oncology Group (ECOG) performance status of </= 1
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  • systolic blood pressure (BP) </= 140 mm Hg and diastolic BP </= 90 mm Hg at screening
  • adequate baseline hematologic, renal, and liver functions
  • must live in a permanent residence within a comfortable driving distance (round trip within one day) of the clinical trial site

Who cannot join

  • the presence of known lung, liver, or brain metastases, malignant pleural effusions, or malignant ascites
  • New York Heart Association Class III or IV heart failure
  • any medical condition that may be compromised by increases in blood pressure, hypokalemia, or fluid retention
  • Child-Pugh Class B or C hepatic insufficiency
  • spinal cord compression, imminent long bone fracture, or any other condition likely to require radiation therapy and/or steroids for pain control
  • known adrenalcortical insufficiency
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  • any medical contraindications to receiving prednisone
  • prior treatment with sipuleucel-T
  • previous treatment with abiraterone acetate (Zytiga(R)) or ipilimumab (Yervoy(TM))
  • a requirement for systemic immunosuppressive therapy for any reason. Use of inhaled, intra-nasal, intra-articular, and topical steroids was allowed.
  • treatment with any investigational vaccine or immunotherapy
  • treatment with any chemotherapy prior to registration.
  • a history of stage III or greater cancer, excluding prostate cancer. Basal or squamous cell skin cancers must have been adequately treated and the subject must be disease-free at the time of registration. Subjects with a history of stage I or II cancer must have been adequately treated and been disease-free for ≥ 3 years at the time of registration.
  • myocardial infarction or ventricular or atrial arrhythmia within 6 months prior to registration
  • ongoing anti-androgen withdrawal response.
  • systemic steroid use within ≤ 60 days of registration
  • treatment with denosumab (Xgeva(R) or Prolia (R)) within ≤ 3 months prior to registration
  • positive test for human immunodeficiency virus (HIV) or human T cell lymphotrophic virus (HTLV) infections. Subjects with a positive test for hepatitis B or hepatitis C were allowed provided they meet the liver function test (LFT) criteria and have no signs of acute infection or active disease.
  • treatment with any of the following medications or interventions within 28 days prior to registration: external beam radiation or major surgery requiring general anesthetic; saw palmetto; megestrol acetate (Megace(R)), diethylstilbestrol, and cyproterone; 5-alpha-reductase inhibitors (e.g. finasteride [Proscar(R)], dutasteride [Avodart(R)]); steroidal anti-androgen therapy; any other systemic therapy for prostate cancer, except for medical castration; treatment with any other investigational product for prostate cancer; substrates of CYP2D6 (e.g. including but not limited to thioridazine); inhibitors of CYP3A4 (e.g. including but not limited to ketoconazole, itraconazole, clarithromycin, nefazodone, telithromycin, and voriconazole); inducers of CYP3A4 (e.g. including but not limited to phenytoin, carbamazepine, rifampin, rifapentine, and phenobarbital)
  • a requirement for treatment with opioid analgesics within 21 days prior to registration
  • an active infection or infection requiring parenteral antibiotic therapy or causing fever within 7 days of registration
  • any medical intervention, or other condition, or any other circumstance that, in the opinion of the Investigator or the Dendreon Medical Monitor, could compromise adherence with study requirements or otherwise compromise the study's objectives

Trial locations and contacts

21 sites in 1 country.

21 sites in 1 country

United States21 sites
  • The Urology Center of Colorado

    Denver, Colorado, 80211

  • Mid Atlantic Urology Associates, Mid Atlantic Clinical Research

    Greenbelt, Maryland, 20770

  • Indiana University

    Indianapolis, Indiana, 46202

  • UCSD Medical Center - La Jolla

    La Jolla, California, 92037

  • Moores UCSD Cancer Center

    La Jolla, California, 92093

  • Cancer Center Oncology Medical Group

    La Mesa, California, 91942

  • Carolina Urologic Research Center

    Myrtle Beach, South Carolina, 29572

  • Urology Associates, P.C.

    Nashville, Tennessee, 37209

  • NYU Clinical Cancer Center, NYU Langone Medical Center

    New York, New York, 10016

  • The Mount Sinai Medical Center

    New York, New York, 10029

  • GU Research Center, LLC

    Omaha, Nebraska, 68130

  • Associated Medical Professionals of NY, PLLC

    Oneida, New York, 13421

  • Providence Cancer Center Oncology and Hematology Care

    Portland, Oregon, 97213

  • UCSD Medical Center - Hillcrest

    San Diego, California, 92103

  • Medical Oncology Associates - SD

    San Diego, California, 92123

  • Sharp Rees-Stealy

    San Diego, California, 92123

  • UCSF Helen Diller Family Comprehensive Cancer Center

    San Francisco, California, 94115

  • Virginia Mason Medical Center

    Seattle, Washington, 98101

  • Associated Medical Professionals of New York, PLLC

    Syracuse, New York, 13210

  • Urology of Virginia

    Virginia Beach, Virginia, 23462

  • Georgetown University Medical Center - Lombardi Cancer Center

    Washington D.C., District of Columbia, 20007

Other trials in United States

About this study

Official title: A Randomized, Open-label, Phase 2 Trial of Sipuleucel-T With Concurrent Versus Sequential Administration of Abiraterone Acetate Plus Prednisone in Men With Metastatic Castrate Resistant Prostate Cancer (mCRPC)

The purpose of this study was to evaluate the impact of concurrent versus sequential administration of abiraterone acetate plus prednisone on the ability to manufacture sipuleucel-T (by assessing sipuleucel-T product parameters), and to assess the safety and efficacy of sipuleucel-T with concurrent or sequential administration of abiraterone acetate plus prednisone in men with metastatic castrate resistant prostate cancer.

Read the detailed description

Subjects underwent screening procedures at the Screening Visit to ensure that they met the inclusion and exclusion criteria outlined in the protocol. Subjects were evaluated for eligibility criteria, and if eligible, were registered and randomized in a 1:1 into either the Concurrent Arm or the Sequential Arm.

Subjects in both arms underwent a standard 1.5 to 2.0 blood volume leukapheresis, followed approximately 3 days later by an intravenous (IV) infusion of sipuleucel-T. This process occurred at approximately 2-week intervals. A course of sipuleucel-T treatment comprised three infusions.

Following the first infusion, subjects were limited to a maximum of three total product failures for all subsequent infusions, due specifically to insufficient total nucleated cell (TNC) count and/or CD54 upregulation. These subjects received no further leukaphereses or sipuleucel-T infusions, but did receive abiraterone acetate plus prednisone per the schedule of the arm to which they were randomized. All subjects received a total of 26 weeks of abiraterone acetate plus prednisone therapy.

All immune monitoring (IM) endpoints were collected from all subjects who received at least one infusion. Cellular and serological immune responses were assessed for subjects in both arms. In both arms, IM blood samples were collected at baseline (screening); pre-leukapheresis 2 and 3; post-infusion 1, 2, and 3; and weeks 6, 10, 14, and 26, with the timing of IM visits based on the onset of treatment (Day 0). Day 0 was the day of the first infusion. Post-infusion blood draws occurred at 3 hours (allowable window 1-24 hours) after each infusion. If a subject received only one or two infusions, immune samples were still drawn at the scheduled time points based on the first infusion (Day 0). If the subject was not scheduled to undergo further leukapheresis, no other pre-leukapheresis procedures were conducted.

During the active follow-up phase, subjects were followed from registration through the Post-Treatment Visit (30-37 days post-last study treatment), or until disease progression, unacceptable toxicity, or death, whichever occurred first.

During the long-term follow-up (LTFU) phase, subjects were followed from the Post-Treatment Visit for up to 3 years from the date of registration/randomization. During the LTFU phase, only new treatment-related serious adverse event (SAE)s, cerebrovascular event (CVE)s (regardless of causality), the first anti-cancer therapy and first chemotherapy, and survival status were collected via a quarterly telephone call.

Overall survival was measured as the time from randomization until death over a 3-year period.

Being tested
sipuleucel-T, abiraterone acetate
Keywords
prostate cancer, prostate, androgen independent prostate cancer (AIPC), androgen-independent, androgen independent, hormone insensitive, hormone-insensitive, prostate specific antigen (PSA), prostatic adenocarcinoma, hormone-refractory, hormone refractory, hormone refractory prostate cancer (HRPC), immune therapy, immunotherapy, vaccine, dendritic cells, antigen-presenting cells, antigen presenting cells, cancer vaccine, therapeutic vaccine
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • sipuleucel-TBiological

    Also called PROVENGE(R), APC8015

    Sipuleucel-T is an autologous cell product consisting of antigen presenting cells (APCs) loaded with PA2024, a recombinant fusion protein composed of prostatic acid phosphatase (PAP), linked to granulocyte-macrophage colony-stimulating factor (GM-CSF).

  • abiraterone acetateDrug

    Also called ZYTIGA(R)

    Abiraterone acetate (1000 mg po QD) was administered in combination with prednisone (5 mg po BID) for a total of 26 weeks.

Study groups in NCT01487863
Study groupRoleWhat they receive
Concurrent ArmExperimentalSubjects received sipuleucel-T concurrent with abiraterone acetate plus prednisone. Abiraterone acetate plus prednisone treatment started the next day after the first infusion of sipuleucel-T and continued for 26 weeks or until disease progression, unacceptable toxicity, or death, occurred.
Receives: Biological: sipuleucel-T; Drug: abiraterone acetate
Sequential ArmExperimentalSubjects received sipuleucel-T therapy followed by abiraterone acetate plus prednisone. Abiraterone acetate plus prednisone started at week 10 from the start of the first infusion of sipuleucel-T and continued for 26 weeks or until disease progression, unacceptable toxicity, or death, occurred.
Receives: Biological: sipuleucel-T; Drug: abiraterone acetate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cumulative CD54 Upregulation Ratio Between the Cohorts.

    An analysis of variance model for the log transformed cumulative CD54 upregulation ratio (CD54 upregulation is the fold increase in the final product (FP) from buoyant density separations (BDS) step 65. BDS65 step refers to sample taken after both BDS77 and BDS65 but before ex vivo culture in the presence of antigen PA2024. FP refers to sample taken after ex vivo culture) that includes the antigen concentration cohort as the independent variable was performed. Subjects who received all 3 infusions were included.

    Measured: Over the course of sipuleucel-T therapy (approximately 1 month)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Dec 2011 (estimated)
  2. Study startDec 2011
  3. Primary completionMay 2016
  4. Study completionJun 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
69 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01487863
Sponsor's protocol ID
P11-3
Status last verified
Mar 2019
First submitted
6 Dec 2011
Last updated
19 Mar 2019
Data monitoring committee
No
Individual data sharing
Undecided

Publications

  • Antonarakis ES, Subudhi SK, Pieczonka CM, Karsh LI, Quinn DI, Hafron JM, Wilfehrt HM, Harmon M, Sheikh NA, Shore ND, Petrylak DP. Combination Treatment with Sipuleucel-T and Abiraterone Acetate or Enzalutamide for Metastatic Castration-Resistant Prostate Cancer: STAMP and STRIDE Trials. Clin Cancer Res. 2023 Jul 5;29(13):2426-2434. doi: 10.1158/1078-0432.CCR-22-3832.

    PubMed 37058234

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing sipuleucel-T and abiraterone acetate in people with Prostate Cancer Metastatic and Hormone Refractory Prostate Cancer, run by Dendreon at 21 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 21 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 12 Jun 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cumulative CD54 Upregulation Ratio Between the Cohorts. (time frame: Over the course of sipuleucel-T therapy (approximately 1 month)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01487863, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Mar 2019.

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