deltatrials
Completed PHASE3 NCT00134056

S0421, Docetaxel and Prednisone With or Without Atrasentan in Treating Patients With Stage IV Prostate Cancer and Bone Metastases That Did Not Respond to Previous Hormone Therapy

Phase III Study of Docetaxel and Atrasentan Versus Docetaxel and Placebo for Patients With Advanced Hormone Refractory Prostate Cancer

Sponsor: National Cancer Institute (NCI)

Updated 11 times since 2017 Last updated: Oct 8, 2021 Started: Aug 31, 2006 Primary completion: Feb 29, 2016 Completion: Feb 29, 2016

A PHASE3 clinical study on Metastatic Cancer and Prostate Cancer, this trial is completed. The trial is conducted by National Cancer Institute (NCI) and has accumulated 11 data snapshots since 2006. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotCompleted~Feb 2017 – ~Jun 2017 · 4 months · monthly snapshotCompleted~Jun 2017 – ~Jul 2017 · 30 days · monthly snapshotCompleted~Jul 2017 – ~Jun 2018 · 11 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Nov 2021 · 10 months · monthly snapshotCompleted~Nov 2021 – ~May 2023 · 18 months · monthly snapshotCompleted~May 2023 – ~Jul 2024 · 14 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 7 months · monthly snapshotCompleted

Change History

11 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE3

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  4. May 2023 — Jul 2024 [monthly]

    Completed PHASE3

  5. Nov 2021 — May 2023 [monthly]

    Completed PHASE3

Show 6 earlier versions
  1. Jan 2021 — Nov 2021 [monthly]

    Completed PHASE3

  2. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE3

  3. Jul 2017 — Jun 2018 [monthly]

    Completed PHASE3

  4. Jun 2017 — Jul 2017 [monthly]

    Completed PHASE3

  5. Feb 2017 — Jun 2017 [monthly]

    Completed PHASE3

  6. Jan 2017 — Feb 2017 [monthly]

    Completed PHASE3

    First recorded

Aug 2006

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • National Cancer Institute (NCI)
  • SWOG Cancer Research Network
Data source: SWOG Cancer Research Network

For direct contact, visit the study record on ClinicalTrials.gov .