ClinicalTrials.gg
WithdrawnNCT03325127Updated Oct 31, 2018

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

An observational study in Prostatic Neoplasms, Castration-Resistant, sponsored by Bayer. Withdrawn. Open to male participants aged 40 Years and older. Per ClinicalTrials.gov, last updated 2018-10-31.

Sponsored by Bayer · Observational

Why this study was withdrawn
Project plan changed, study conduct was no longer needed.

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Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
0
Ages
40 Years and older
Sex
Male
01

Study 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). 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.

02

Conditions studied

  • Prostatic Neoplasms, Castration-Resistant

Keywords

  • Prostate Cancer, Bone metastases, Xofigo, Zytiga, Xtandi.
03

In context

Prostatic Neoplasms, Castration-Resistant

85 studies on the registry are indexed under Prostatic Neoplasms, Castration-Resistant; 28 are open to participants now.

Browse Prostatic Neoplasms, Castration-Resistant studies →

Lead sponsor

Bayer is the lead sponsor of 1,674 studies on the registry; 51 are open to participants now.

Of its 214 completed or terminated interventional studies of FDA-regulated products, 132 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No
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).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of mCRPC and bone
  • ≥ 40 years of age at diagnosis of mCRPC
  • Initiated 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

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
  • Presence of visceral 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
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
0 participants (actual)
Patient registry
No

Groups and cohorts

  • 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) · Drug: Zytiga · Drug: Xtandi

Interventions

06

What researchers measure

Primary outcomes

  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

    Time frame: Up to 1 year

Secondary outcomes

  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

    Time frame: 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

    Time frame: 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

    Time frame: Up to 1 year

  4. Time to death

    Time frame: Up to 1 year

  5. Sequence of treatment regimens

    Time frame: Up to 1 year

  6. Dose schedule

    Time frame: Up to 1 year

  7. Duration of therapy

    Time frame: Up to 1 year

  8. Time to first visceral metastasis

    Time frame: Up to 1 year

  9. Proportion of patients developing visceral metastasis

    Time frame: Up to 1 year

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Oct 2017; primary completion for Sep 2018, 10 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 20, 2017
First posted
Oct 30, 2017
StartEst.
Oct 30, 2017
Primary completionEst.
Sep 28, 2018
CompletionEst.
Sep 28, 2018
Last update
Oct 31, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 31, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03325127
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Oct 30, 2017
Start date
Oct 30, 2017 (estimated)
Primary completion
Sep 28, 2018 (estimated)
Completion
Sep 28, 2018 (estimated)
Last update
Oct 31, 2018

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.

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