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Prostatic Neoplasms, Castration-ResistantNCT03325127

Outcomes of mCRPC Patients Treated With Ra-223 Concomitant With Abiraterone or Enzalutamide- A Chart Review Study

An observational study of Prostatic Neoplasms, Castration-Resistant, run by Bayer.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

There are no real-world data that describes how Radium-223 (Ra-223) is being used in combination with abiraterone/enzalutamide (abi/enza) or evidence describing outcomes of this combination usage for the treatment of metastatic castration resistant prostate cancer (mCRPC). Read more about this study

Who is it for?
Ages 40 years and older, men only
What is being tested?
radium Ra 223 dichloride (Xofigo, BAY88-8223), Zytiga and Xtandi
How many people
0 participants
Where
No sites listed yet
Study dates
30 Oct 2017to 28 Sep 2018
Phase
Observational
Are there results?
None posted in the registry

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 40 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients will be identified by their treating physicians (oncologists and urologists), who will be recruited for participation in the research from the Cardinal Health Oncology Research Network (CHORN).

Who may be able to join

  • Diagnosis of mCRPC and bone metastases
  • ≥ 40 years of age at diagnosis of mCRPC
  • Initiated first line treatment for mCRPC with abi/enza (use of sipuleucel-T prior to initiation of abi or enza is allowed)
  • Receipt of at least one cycle of radium-223 after 15 May 2013
  • First cycle of Ra-223 occurs while receiving first line treatment with abi/enza
  • Treated with abi/enza for at least 28 days (1 cycle) following initiation of Ra-223
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  • Initiation of Ra-223 at least 6 months after the start of treatment with abi/enza
  • Completion of Ra-223 treatment prior to the receipt of any chemotherapy for mCRPC
  • At least 12 months of follow-up (or until death) from date of initiation of Ra-223
  • Known date of death (if patient deceased)

Who cannot join

  • Receipt of any prior chemotherapy during hormone sensitive disease or any time before mCPRC
  • Active participant in an interventional clinical trial for CRPC in first line
  • Presence of visceral metastases at initiation of Ra-223 treatment
  • Treated with abi/enza (with or without docetaxel) prior to the development of metastatic and/or castration resistant disease

About this study

Official title: Outcomes and Treatment Patterns of Metastatic Castration Resistant Prostate Cancer (mCRPC) Patients Treated With Radium-223 Concomitantly With Abiraterone or Enzalutamide in First Line Setting : A Retrospective Chart Abstraction Study

There are no real-world data that describes how Radium-223 (Ra-223) is being used in combination with abiraterone/enzalutamide (abi/enza) or evidence describing outcomes of this combination usage for the treatment of metastatic castration resistant prostate cancer (mCRPC). To address these data gaps a cohort of mCRPC patients will be chosen who received Ra-223 concomitant with abi/enza in first line therapy to assess the treatment patterns following first line and clinical outcomes from initiation of first line treatment. For the purpose of this study concomitant use will be defined as Ra-223 initiated after at least 6 months from the start of first line abi/enza. The specific objectives of the study are to describe the outcomes, treatment patterns, patient and provider characteristics of mCRPC patients treated with Ra-223 concomittantly with abi/enza in first line treatment.

Being tested
radium Ra 223 dichloride (Xofigo, BAY88-8223), Zytiga, Xtandi
Keywords
Prostate Cancer, Bone metastases, Xofigo, Zytiga, Xtandi.
Medical subject headings
Prostatic Neoplasms, Castration-Resistant, Prostatic Neoplasms

What participants receive

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

  • radium Ra 223 dichloride (Xofigo, BAY88-8223)Drug

    Radium-223, 55kBq (1.49 microcurie) per kg body weight given at 4 week intervals for 6 injections

  • ZytigaDrug

    Abiraterone 1000 mg per day orally

  • XtandiDrug

    Enzalutamide 160 mg per day orally

Study groups in NCT03325127
Study groupRoleWhat they receive
Radium-223 concomitant with Abiraterone or EnzalutamideApproximately 150 medical charts from mCRPC patients within the network will be collected
Receives: Drug: radium Ra 223 dichloride (Xofigo, BAY88-8223); Drug: Zytiga; Drug: Xtandi

What is being measured

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

  1. Survival rates

    Survival will be defined as time from initiation of first line therapy until death. Survival will be measured as the proportion of study subjects that are alive at the data cut-off or median time for survival of at least 50% of study subjects

    Measured: Up to 1 year

Secondary outcomes (9)
  1. Disease progression

    Disease progression will be defined as either of the below:

    PSA (Prostate Specific Antigen) progression ALP (Alkaline Phosphatase) progression Symptomatic progression Radiographic progression

    Measured: Up to 1 year

  2. Skeletal related events (SRE)

    SRE will be defined as: a pathologic fracture, spinal cord compression, necessity for radiation to bone for pain or impending fracture and/or surgery to bone

    Measured: Up to 1 year

  3. Symptomatic Skeletal Events (SSE)

    SSE defined as external beam radiation therapy (EBRT) to relieve skeletal symptoms, new symptomatic pathologic bone fracture, occurrence of spinal cord compression, or tumor-related orthopedic surgical intervention

    Measured: Up to 1 year

  4. Time to death

    Measured: Up to 1 year

  5. Sequence of treatment regimens

    Measured: Up to 1 year

  6. Dose schedule

    Measured: Up to 1 year

  7. Duration of therapy

    Measured: Up to 1 year

  8. Time to first visceral metastasis

    Measured: Up to 1 year

  9. Proportion of patients developing visceral metastasis

    Measured: Up to 1 year

Timeline

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

  1. First posted30 Oct 2017
  2. Study start30 Oct 2017 (estimated)
  3. Primary completion28 Sep 2018 (estimated)
  4. Study completion28 Sep 2018 (estimated)

Why it stopped: Project plan changed, study conduct was no longer needed.

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03325127
Sponsor's protocol ID
19706
Status last verified
Oct 2018
First submitted
20 Oct 2017
Last updated
31 Oct 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Prostatic Neoplasms, Castration-Resistant, run by Bayer.

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 10 inclusion and 4 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: withdrawn, as of the sponsor's last update on 31 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

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.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

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?

Survival rates (time frame: Up to 1 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 31 Oct 2018.

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