Open- Label Trial of Sipuleucel-T Administered to Active Surveillance Patients for Newly Diagnosed Prostate Cancer (ProVent)
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|ClinicalTrials.gov Identifier: NCT03686683|
Recruitment Status : Active, not recruiting
First Posted : September 27, 2018
Last Update Posted : September 8, 2021
|Condition or disease||Intervention/treatment||Phase|
|Adenocarcinoma of the Prostate||Biological: sipuleucel-T||Phase 3|
The ProVent Study is designed to look at subjects who recieve sipuleucel-T compared to control subjects followed on AS. The study will enroll subjects being followed by AS and initially diagnosed within 12 months prior to Screening with either ISUP Grade Group 1 or 2 adenocarcinoma of the prostate.
The Screening Phase will begin at the completion of the informed consent process and continues until randomization. After Screening assessments are completed, eligible subjects will be randomized 2:1 to the sipuleucel-T arm or the control arm. Subjects randomized to sipuleucel-T arm will receive product as described in the sipuleucel-T approved label.
Subjects will undergotheir first leukapheresis within 60 days of randomization.
Subjects randomized to the control arm will be followed on AS. The Active Phase will begin at randomization and continues through completion of the end of Active Phase study visit (within 30 days of Biopsy 2). Once a subject from either the sipuleucel-T or control arms completes the end of Active Phase visit, they will enter the Follow-up Phase and complete Follow-up Phase visits every 6 months starting from their last Active Phase visit. The Follow-up Phase visits end when the last subject enrolled completes Biopsy 2 and end of Active Phase visit or until the study is terminated by the sponsor.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||450 participants|
|Intervention Model:||Parallel Assignment|
|Intervention Model Description:||Subjects will be randomized 2:1 to the sipuleucel-T arm or the control arm.Subjects randomized to sipuleucel-T arm will receive 3 infusions of sipuleucel-T at approximately 2-week intervals. Subjects randomized to the control arm will be followed on AS as standard of care described in the schedule of events.|
|Masking:||None (Open Label)|
|Official Title:||A Randomized Phase 3, Open-Label Trial of Sipuleucel-T Administered To Patients On Active Surveillance For Newly Diagnosed Prostate Cancer|
|Actual Study Start Date :||October 18, 2018|
|Estimated Primary Completion Date :||May 2023|
|Estimated Study Completion Date :||May 2023|
Experimental: Treatment Group: Sipuleucel-T
Sipuleucel-T is an autologous cellular immunotherapy available as a suspension for intravenous infusion. Subjects randomized to sipuleucel-T arm will receive 3 infusions of sipuleucel-T at approximately 2-week intervals.
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).
No Intervention: Control Arm: Active Surveillance
Subjects randomized to the control arm will be followed on Active Surveillance described in the schedule of events.
- To assess the efficacy of sipuleucel-T in reducing histopathologic reclassification to a higher Gleason grade in prostate cancer subjects on active surveillance (AS) [ Time Frame: Once all subjects have completed at least 3 years following randomization ]
Proportion of subjects without histological reclassification (Gleason group upgrade) within 36 months of randomization as determined by Blinded Independent Central Review (BICR)
o Upgrade is defined as subjects at randomization with either International Society of Urological Pathology (ISUP) Grade Group 1 (Gleason 3+3) upgraded to Grade Group 2 (Gleason 3+4) or higher or subjects at randomization with Grade Group 2 upgraded to Grade Group 3 (Gleason 4+3) or higher.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03686683
|Study Director:||Bruce Brown, MD||Dendreon Pharmaceuticals LLC|