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Prostatic NeoplasmPhase 2NCT01431391

Sequencing of Sipuleucel-T and ADT in Men With Non-metastatic Prostate Cancer

A Phase 2 study testing sipuleucel-T and leuprolide acetate in people with Prostatic Neoplasm and Prostate Cancer, run by Dendreon at 14 sites in United States.

Completed

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

Official record
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Trial summary

The main purpose of this study was to determine whether ADT started before or after sipuleucel-T led to a better immune system response. This study also evaluated the safety of sipuleucel-T and ADT treatment, immune system responses over time, the characteristics of sipuleucel-T, and changes in prostate specific… Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
sipuleucel-T and leuprolide acetate
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
68 participants
Where
14 sitesUnited States
Study dates
Sep 2011to Dec 2014
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

  • Hormone-sensitive prostate cancer
  • Non-metastatic disease, as evidenced by negative bone scan or computed tomography of the abdomen and pelvis
  • ECOG performance status ≤ 1
  • Histologically documented prostate cancer
  • Prior primary therapy for prostate cancer
  • Rising PSA with a PSADT of ≤ 12 months
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  • Testosterone ≥ 200 ng/dL ≤ 28 days of registration
  • Adequate hematologic, renal, and liver function
  • Must live in a permanent residence within a comfortable driving distance (round-trip within one day) to the clinical research site

Who cannot join

  • Requires systemic ongoing immunosuppressive therapy
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to sipuleucel-T or GM-CSF
  • Prior sipuleucel-T therapy
  • Prior ADT therapy ≤ 6 months prior to registration or ≥ 6 months duration in total
  • If subject has a history of any other stage III/IV malignancy, the subject must be disease free and off any malignancy-related treatment for at least 10 years. If the subject has a history of any stage I-II malignancy, the subject must be disease free and off any malignancy-related treatment for at least 5 years.
  • Prior experimental immunotherapy or on an experimental clinical trial within 1 year
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  • Received denosumab or XRT ≤ 6 months prior to registration
  • Received chemotherapy or GM-CSF ≤ 90 days prior to registration
  • Received any of the following medications or interventions ≤ 28 days prior to registration
  • major surgery requiring general anesthesia
  • systemic immunosuppressive therapy
  • other prescription treatment for prostate cancer
  • Active infection within 1 week of registration
  • Likely to receive XRT or surgery for prostate cancer during the study period
  • Any medical intervention, any other condition, or any circumstances that could compromise the study.

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

United States14 sites
  • NYOH Albany Cancer Center at Patroon Creek

    Albany, New York, 12206

  • Community Care Physicians, PC

    Albany, New York, 12208

  • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

    Baltimore, Maryland, 21287

  • The Urology Center of Colorado

    Denver, Colorado, 80211

  • Urology Center of Alabama

    Homewood, Alabama, 35209

  • University of California San Diego / Moores Cancer Center

    La Jolla, California, 91914

  • Comprehensive Cancer Centers of Nevada

    Las Vegas, Nevada, 89169

  • Keck Hospital of USC

    Los Angeles, California, 90033

  • LAC + USC Medical Center

    Los Angeles, California, 90033

  • USC / Norris Comprehensive Cancer Center

    Los Angeles, California, 90033

  • Grand Strand Urology

    Myrtle Beach, South Carolina, 29572

  • Urology San Antonio Research

    San Antonio, Texas, 78229

  • Virginia Mason Medical Center

    Seattle, Washington, 98101

  • Seattle Cancer Care Alliance

    Seattle, Washington, 98109

Other trials in United States

About this study

Official title: A Randomized, Open-Label, Phase 2 Trial Examining the Sequencing of Sipuleucel-T and Androgen Deprivation Therapy in Men With Non-metastatic Prostate Cancer and a Rising Serum Prostate Specific Antigen After Primary Therapy

The main purpose of this study was to determine whether ADT started before or after sipuleucel-T led to a better immune system response. This study also evaluated the safety of sipuleucel-T and ADT treatment, immune system responses over time, the characteristics of sipuleucel-T, and changes in prostate specific antigen (PSA) values over time.

Read the detailed description

Multicenter, randomized, open-label study, with subjects allocated (1:1) to 1 of 2 study arms, using a stratified randomization based on:

  • Prostate-specific antigen doubling time (PSADT): ≤ 3 months or > 3 months and ≤ 12 months. • Primary therapy: radical prostatectomy (RP) or radiation, including brachytherapy, (XRT) or RP + XRT.

Arm 1: Subjects received one infusion of sipuleucel-T every two weeks for a total of three infusions. Two weeks after the third sipuleucel-T infusion, subjects started ADT with 45 mg leuprolide acetate depot injection (Eligard® 45 mg). An additional leuprolide acetate injection was administered at 6 months after the first injection for a total of 2 injections and 12 months of ADT.

Arm 2: Subjects started ADT with 45 mg leuprolide acetate depot injection (Eligard® 45 mg) 12 weeks before infusion 1 of sipuleucel-T. An additional leuprolide acetate injection was administered at 6 months after the first injection for a total of 2 injections and 12 months of ADT. Twelve weeks after the initial leuprolide 45 mg depot injection, subjects began one infusion of sipuleucel-T every two weeks for a total of three infusions.

Cellular and humoral immune responses were assessed for Arm 2 subjects at 12, 8, and 4 weeks pre infusion 1, and in all subjects (both arms) at pre-leukapheresis 1, 2, and 3, and post-infusion 1, 2 and 3, and at the following time points after the third infusion: Weeks 2, 6, and 12 and Months 6, 9, 12, 15, 18, 21, and 24.

Safety assessments included adverse event (AE) monitoring, laboratory tests (complete blood count (CBC) and serum chemistry), vital signs, Eastern Cooperative Oncology Group (ECOG) performance status, physical examination, as well PSA and testosterone monitoring. The study was complete at the 27-Month visit for Arm 1 and the 24-Month visit for Arm 2.

Being tested
sipuleucel-T, leuprolide acetate
Keywords
Immune therapy, Cancer vaccine, Therapeutic vaccine, Therapeutic cancer vaccine, Vaccine, Dendritic cells, PSA, Androgen deprivation therapy, Prostatic Neoplasms, Genital Neoplasms, Male, Urogenital Neoplasms, Neoplasms, Prostatic Diseases, Androgens, Hormones, Adenocarcinoma, Carcinoma, Neoplasms, Glandular and Epithelial, Immunology, Hormone therapy
Medical subject headings
Prostatic Neoplasms, Genital Neoplasms, Male, Urogenital Neoplasms, Neoplasms, Prostatic Diseases, Adenocarcinoma, Carcinoma, Neoplasms, Glandular and Epithelial

What participants receive

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

  • sipuleucel-TBiological

    Also called PROVENGE®, APC8015

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

  • leuprolide acetateDrug

    Also called Eligard®

    45.0 mg depot injection, 2 doses 6 months apart

Study groups in NCT01431391
Study groupRoleWhat they receive
Arm 1: Sipuleucel-T followed by ADTExperimentalArm 1: Subjects received one infusion of sipuleucel-T every two weeks for a total of three infusions. Two weeks after the third sipuleucel-T infusion, subjects started ADT with 45 mg leuprolide acetate depot injection (Eligard® 45 mg). An additional leuprolide acetate injection was administered at 6 months after the first injection for a total of 2 injections and 12 months of ADT.
Receives: Biological: sipuleucel-T; Drug: leuprolide acetate
Arm 2: ADT followed by sipuleucel-TExperimentalArm 2: Subjects started ADT with 45 mg leuprolide acetate depot injection (Eligard® 45 mg) 12 weeks before infusion 1 of sipuleucel-T. An additional leuprolide acetate injection was administered at 6 months after the first injection for a total of 2 injections and 12 months of ADT. Twelve weeks after the initial leuprolide 45 mg depot injection, subjects began one infusion of sipuleucel-T every two weeks for a total of three infusions.
Receives: Biological: sipuleucel-T; Drug: leuprolide acetate

What is being measured

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

  1. Immune Response at Month 24 as Evaluated by IFN-γ ELISPOT Specific for PA2024

    Immune response at month 24 as evaluated by IFN-γ ELISPOT specific for PA2024 following sipuleucel-T/ADT treatment regimens to determine if order of administration impacted immune response.

    Measured: PA2024 ELISPOT counts at Month 24

Secondary outcomes (1)
  1. Percentage of Participants With Immune Response As Evaluated by IFN-γ ELISPOT Specific for PA2024

    A participant was considered to have an immune response it the post-baseline PA2024-specific IFN-g ELISPOT count was >18

    Measured: Month 24

Timeline

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

  1. First posted9 Sep 2011 (estimated)
  2. Study startSep 2011
  3. Primary completionDec 2014
  4. Study completionDec 2014

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
68 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01431391
Sponsor's protocol ID
P10-2
Status last verified
Apr 2017
First submitted
5 Aug 2011
Last updated
30 May 2017
Data monitoring committee
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing sipuleucel-T and leuprolide acetate in people with Prostatic Neoplasm and Prostate Cancer, run by Dendreon at 14 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 15 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 30 May 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 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 30 May 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?

Immune Response at Month 24 as Evaluated by IFN-γ ELISPOT Specific for PA2024 (time frame: PA2024 ELISPOT counts at Month 24). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 30 May 2017.

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