Neoplasms

Urinary Tract, Sexual Organs, and Pregnancy Conditions

All Conditions

Prostatic Neoplasms

Genital Neoplasms, Male

Urogenital Neoplasms

Genital Diseases

Genital Diseases, Male

Urogenital Diseases

Prostatic Diseases

Male Urogenital Diseases

Antineoplastic Agents

All Drugs and Chemicals

Atezolizumab

Immune Checkpoint Inhibitors

Antineoplastic Agents, Immunological

Atezolizumab1200 mg IV week 1 and week 4 followed by Sipuleucel-T administered weeks 6, 8, and 10

Sipuleucel-T administered week 1, 3, and 5 followed by Atezolizumab1200 mg IV weeks 7 and 10

Subjects in ARM 1 will receive 2 doses of atezolizumab 1200 mg intravenously (week 1 and week 4). If no dose limiting toxicity continue onto maintenance, week 13 and receive atezolizumab 1200 mg intravenously every 3 weeks until toxicities or lack of clinical benefit. Subjects in ARM 2 will receive 2 doses at approximately 3 weeks each of atezolizumab 1200 mg intravenously (weeks 7 and 10). If no dose limiting toxicity, continue to receive atezolizumab 1200 mg intravenously every 3 weeks, starting week 13, until toxicities or lack of clinical benefit.

Atezolizumab1200 mg IV

Subjects in ARM 1 will receive sipuleucel-T administered in 3 doses at approximately 2-week intervals (weeks 6, 8, 10). Subjects in ARM 2 will receive sipuleucel-T administered in 3 doses at approximately 2-week intervals (weeks 1, 3 and 5)

Sipuleucel-T

Jared Acoba, MD

The purpose of the study is to compare the safety and tolerability of sequential atezolizumab followed by sipuleucel-T (Arm 1) vs. sipuleucel-T followed by atezolizumab (Arm 2) in patients who have asymptomatic or minimally symptomatic metastatic CRPC, not previously treated with docetaxel or cabazitaxel.

Clinical Study of Atezolizumab (Anti-PD-L1) and Sipuleucel-T in Patients With Asymptomatic or Minimally Symptomatic Metastatic Castrate Resistant Prostate Cancer

Phase Ib Study Assessing Different Sequencing Regimens of Atezolizumab (Anti-PD-L1) and Sipuleucel-T in Patients Who Have Asymptomatic or Minimally Symptomatic Metastatic Castrate Resistant Prostate Cancer

Duration of confirmed objective response in patients with measurable soft tissue disease at baseline, defined as the time from first observation of an objective confirmed tumor response until first observation of disease progression or death, as assessed by the investigator per PCWG2 criteria

Duration of confirmed objective response in patients with measurable soft tissue disease at baseline, defined as the time from first observation of an objective confirmed tumor response until first observation of disease progression or death, as assessed by the investigator per modified RECIST v1.1 criteria

Spots Global Cancer Trial Database for Clinical Study of Atezolizumab (Anti-PD-L1) and Sipuleucel-T in Patients With Asymptomatic or Minimally Symptomatic Metastatic Castrate Resistant Prostate Cancer

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