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Prostate NeoplasmPhase 3NCT03241537

COHORT Trial in Clinical Pelivc Lymph Node Metastatic Prostate Cancer

A Phase 3 study testing Intensity modulated radiotherapy in people with Prostate Neoplasm, run by Samsung Medical Center at 1 site in South Korea.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

In local advanced prostate cancer patients with clinically positive metastatic regional lymph node, the optimal treatment is still unanswered. For these patients, radiotherapy combined with hormonal therapy or hormonal therapy alone are recommended. Read more about this study

Who is it for?
Ages 20 years and older, men onlyHealthy volunteers can take part
Conditions the study is for
Prostate Neoplasm
What is being tested?
Intensity modulated radiotherapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
61 participants
Where
1 siteSouth Korea
Study dates
15 Jan 2016to 14 Dec 2026
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • pathologically confirmed prostate cancer within 6 months for study enrollment
  • Clincally enlarged pelvic lymph node ((short axis 0.5 cm ≤) in imaging studies (CT, MRI, PET-CT) at diagnosis and partial response or complete remission of enlarged lymph nodes according to RECIST v1.1 after hormonal therapy for 2-3 months 3. age 20 ≤ 4. ECOG performance status 0-1 5. Optimal hematologic profiles within 6 months for study enrollment
  • Absolute neutrophil count (ANC) ≥ 1500 cells/mm3
  • Platelets ≥ 50,000 cells/mm3
  • Hemoglobin ≥ 8.0 g/dl 6. Optimal kidney function within 6 months for study enrollment
  • Creatinine < 2.0 ng/dL 7. Optimal liver functions within 6 months for study enrollment
  • total bilirubin < 1.5 X maximum normal value
  • alanine aminotransferase or aspartate aminotransferase < 2.5 X maximum normal value

Who cannot join

  • combined with distant metastasis (retroperitoneal lymph node, bone,...)
  • previous history of antiandrogen therapy within 6 months of study enrollment
  • previous history of definitive prostate cancer treatment such as prostatectomy
  • previous history of pelvic radiotherapy
  • previous history of other cancer treatment except for skin cancer and theroid cancer

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Samsung Medical Center

    Seoul, 06351

Other trials in South Korea

About this study

Official title: Open Label, Randomized Phase III Trial of Hormone Therapy Alone Versus COmbined HOrmone With Radiation Therapy in Clinical Pelvic Lymph Node Metastatic Prostate Cancer (COHORT Trial)

In local advanced prostate cancer patients with clinically positive metastatic regional lymph node, the optimal treatment is still unanswered. For these patients, radiotherapy combined with hormonal therapy or hormonal therapy alone are recommended. Recently, the reports from NCCB and SEER data showed that radiotherapy combined with hormonal therapy have better survivals than hormonal therapy alone.

This randomized phase III trial compare hormonal therapy alone with combined hormone with radiotherapy in clinically pelvic lymph node metastatic prostate cancer.

Being tested
Intensity modulated radiotherapy
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intensity modulated radiotherapyRadiation

Study groups in NCT03241537
Study groupRoleWhat they receive
Hormonal therapy aloneNo interventiontotal androgen ablation or antiandrogen therapy alone for 2-3 years
Hormonal therapy with radiotherapyActive comparatortotal androgen ablation or antiandrogen therapy for 2-3 years combined with radiotherapy on whole pelvis
Receives: Radiation: Intensity modulated radiotherapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Comparison of recurrence-free survival between two treatment groups

    expected 5-year recurrence-free survival were 40% in hormonal therapy alone group and more than 80% in hormonal therapy combined with radiotherapy

    Measured: 5-year

Secondary outcomes (5)
  1. Comparison of toxicities between two treatment groups

    Compare adverse events accroding to CTCAE V4.0 between hormonal therapy alone group and hormonal therapy combined with radiotherapy group

    Measured: 5-year

  2. Comparison of quality of lifl between two treatment groups

    Compare quality of life accroding to Expanded prostate cancer index composite_Korean between hormonal therapy alone group and hormonal therapy combined with radiotherapy group

    Measured: 5-year

  3. Comparison of overall survival between two treatment groups

    Compare overall survival between hormonal therapy alone group and hormonal therapy combined with radiotherapy group

    Measured: 5-year

  4. Comparison of clinical failure free survival between two treatment groups

    Compare clinical failure free survival between hormonal therapy alone group and hormonal therapy combined with radiotherapy group

    Measured: 5-year

  5. Comparison of cause-specific survival between two treatment groups

    Compare cause-specific survival between hormonal therapy alone group and hormonal therapy combined with radiotherapy group

    Measured: 5-year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Aug 2017
  2. Study start15 Jan 2016
  3. Primary completion14 Dec 2026 (estimated)
  4. Study completion14 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
61 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03241537
Sponsor's protocol ID
SMC2015-11-139-002
Status last verified
Nov 2023
First submitted
27 Jul 2017
Last updated
27 Nov 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Intensity modulated radiotherapy in people with Prostate Neoplasm, run by Samsung Medical Center at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 27 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Comparison of recurrence-free survival between two treatment groups (time frame: 5-year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Nov 2023.

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