deltatrials
Completed NA NCT00156052

Hypofractionated Radiotherapy Post-Lumpectomy in Women With Node Negative Breast Cancer

A Randomized Trial of Hypofractionated Radiotherapy Post-Lumpectomy in Women With Node Negative Breast Cancer

Sponsor: Ontario Clinical Oncology Group (OCOG)

Conditions Breast Cancer
Interventions Conventional whole breast radiation schedule Hypofractionated whole breast radiation schedule
Updated 6 times since 2017 Last updated: Jun 3, 2015 Started: Apr 30, 1993 Primary completion: Jun 30, 2015 Completion: Jun 30, 2015

A NA clinical study on Breast Cancer, this trial is completed. The trial is conducted by Ontario Clinical Oncology Group (OCOG) and has accumulated 6 data snapshots since 1993. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

~Jan 2017 – ~Jun 2018 · 17 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 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

6 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed NA

  2. Sep 2024 — Sep 2025 [monthly]

    Completed NA

  3. Jul 2024 — Sep 2024 [monthly]

    Completed NA

  4. Jan 2021 — Jul 2024 [monthly]

    Completed NA

  5. Jun 2018 — Jan 2021 [monthly]

    Completed NA

▶ Show 1 earlier version

  1. Jan 2017 — Jun 2018 [monthly]

    Completed NA

    First recorded

Apr 1993

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Ontario Clinical Oncology Group (OCOG)
Data source: Ontario Clinical Oncology Group (OCOG)

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

Study Locations