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NCT03582475 · ClinicalTrials.gov registry record · Phase 1

Pembrolizumab With Combination Chemotherapy in Treating Participants With Locally Advanced or Metastatic Small Cell/Neuroendocrine Cancers of Urothelium or Prostate

A Phase 1 study of Castration-Resistant Prostate Carcinoma and Stage III Prostate Cancer AJCC v8, sponsored by Jonsson Comprehensive Cancer Center.

Active
Registry status
Phase 1
Development phase
15
Enrollment target
1
Study location

NCT03582475: Active Phase 1 study of Castration-Resistant Prostate Carcinoma and Stage III Prostate Cancer AJCC v8, sponsored by Jonsson Comprehensive Cancer Center.

NCT03582475 is a Phase 1 study of Castration-Resistant Prostate Carcinoma and Stage III Prostate Cancer AJCC v8 that is active but no longer recruiting, run by Jonsson Comprehensive Cancer Center. The registered enrollment target is 15 participants, below the 78-participant average among 43 other Castration-Resistant Prostate Carcinoma trials with a reported enrollment target (81% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03582475, a Phase 1 study of Castration-Resistant Prostate Carcinoma and Stage III Prostate Cancer AJCC v8, is active but no longer recruiting, sponsored by Jonsson Comprehensive Cancer Center.

ACTIVE NOT RECRUITING
Registry status
Phase 1
Development phase
15 participants
Enrollment target
1
Study location

Study Summary

This phase Ib trial studies how well pembrolizumab works with combination chemotherapy in treating participants with small cell/neuroendocrine cancers of the urothelium or prostate that has spread to nearby tissue or lymph nodes or that has spread to other places in the body. Monoclonal antibodies, such as pembrolizumab, may interfere with the ability of tumor cells to grow and spread. Drugs used in chemotherapy, such as etoposide, docetaxel, cisplatin, and carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving pembrolizumab with platinum-based chemotherapy may work better in treating participants with small cell/neuroendocrine cancers of the urothelium or prostate.

Primary Outcome

Durable Response Rate (DRR) defined as the proportion of patients who achieved a confirmed complete or partial response (CR or PR) and maintained that response for at least 6 months.

Interventions

  • BIOLOGICAL Pembrolizumab
  • DRUG Carboplatin
  • DRUG Docetaxel
  • DRUG Cisplatin
  • DRUG Etoposide

Study Locations (1)

California

  • UCLA / Jonsson Comprehensive Cancer Center - Los Angeles

Trial Details

FieldValue
Enrollment Target 15 participants
Start Date 2019-01-11
Est. Completion 2026-12-01
Phase Phase 1
Jonsson Comprehensive Cancer Center

321 total trials

What the registry record for NCT03582475 still lists

NCT03582475 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 15 participants, a relatively small participant target, below the 78-participant average among 43 other Castration-Resistant Prostate Carcinoma trials with a reported enrollment target (81% lower).

The record links to 10 conditions, with Castration-Resistant Prostate Carcinoma appearing as the primary indexed condition, and to 5 interventions - of which Pembrolizumab is the first listed.

NCT03582475 reports a single indexed study location in California.

Frequently Asked Questions

What is clinical trial NCT03582475 about?

NCT03582475 is a clinical study titled "Pembrolizumab With Combination Chemotherapy in Treating Participants With Locally Advanced or Metastatic Small Cell/Neuroendocrine Cancers of Urothelium or Prostate". This phase Ib trial studies how well pembrolizumab works with combination chemotherapy in treating participants with small cell/neuroendocrine cancers of the urothelium or prostate that has spread to nearby tissue or lymph nodes or that has spread to other places in the body. Monoclonal antibodies, ...

What is the current status of trial NCT03582475?

This trial is currently active not recruiting. It is a Phase 1 study. The enrollment target is 15 participants. The study started on 2019-01-11. Estimated completion is 2026-12-01.

What conditions does trial NCT03582475 study?

This clinical trial studies the following conditions: Castration-Resistant Prostate Carcinoma, Stage III Prostate Cancer AJCC v8, Metastatic Bladder Urothelial Carcinoma, Metastatic Urethral Urothelial Carcinoma, Prostate Carcinoma Metastatic in the Bone.

What interventions are being tested in trial NCT03582475?

The interventions under investigation include: Pembrolizumab (BIOLOGICAL), Carboplatin (DRUG), Docetaxel (DRUG), Cisplatin (DRUG), Etoposide (DRUG).

Who is sponsoring clinical trial NCT03582475?

This trial is sponsored by Jonsson Comprehensive Cancer Center, which has 321 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT03582475 being conducted?

This trial has 1 study location across California. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Castration-Resistant Prostate Carcinoma

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT03582475's enrollment target sits among peer trials

15 35th of 43 higher than 7 of 43 other Castration-Resistant Prostate Carcinoma trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Castration-Resistant Prostate Carcinoma trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03582475, the US trial registry maintained by the National Library of Medicine. NCT03582475 (small enrollment · single site footprint · active not recruiting) retrieved and formatted by PlainTrial, see methodology.