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

October 29, 2018 updated by: Bayer

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Withdrawn

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Sampling Method

Probability Sample

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).

Description

Inclusion Criteria:

  • 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
  • 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)

Exclusion Criteria:

  • 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Radium-223 concomitant with Abiraterone or Enzalutamide
Approximately 150 medical charts from mCRPC patients within the network will be collected
Drug: radium Ra 223 dichloride (Xofigo, BAY88-8223)
Radium-223, 55kBq (1.49 microcurie) per kg body weight given at 4 week intervals for 6 injections
Drug: Zytiga
Abiraterone 1000 mg per day orally
Drug: Xtandi
Enzalutamide 160 mg per day orally

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Survival rates
Time Frame: Up to 1 year
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
Up to 1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Disease progression
Time Frame: Up to 1 year

Disease progression will be defined as either of the below:

PSA (Prostate Specific Antigen) progression ALP (Alkaline Phosphatase) progression Symptomatic progression Radiographic progression
Up to 1 year
Skeletal related events (SRE)
Time Frame: Up to 1 year
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
Up to 1 year
Symptomatic Skeletal Events (SSE)
Time Frame: Up to 1 year
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
Up to 1 year
Time to death
Time Frame: Up to 1 year
Up to 1 year
Sequence of treatment regimens
Time Frame: Up to 1 year
Up to 1 year
Dose schedule
Time Frame: Up to 1 year
Up to 1 year
Duration of therapy
Time Frame: Up to 1 year
Up to 1 year
Time to first visceral metastasis
Time Frame: Up to 1 year
Up to 1 year
Proportion of patients developing visceral metastasis
Time Frame: Up to 1 year
Up to 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Bayer

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 30, 2017

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 28, 2018

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 28, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 20, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 27, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 30, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 31, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 29, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 19706

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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