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Prostate CancerPhase 1NCT01902251

Relative Bioavailability Study of Enzalutamide in Prostate Cancer Patients

A Phase 1 study testing Enzalutamide tablet and Enzalutamide capsule in people with Prostate Cancer and Pharmacokinetics of Enzalutamide, run by Astellas Pharma Europe B.V. at 4 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A multiple dose relative bioavailability study in patients with prostate cancer comparing a capsule and a tablet formulation of enzalutamide. Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
Enzalutamide tablet and Enzalutamide capsule
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
4 sitesUnited States
Study dates
Nov 2012to Oct 2013
Phase
Phase 1
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 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically confirmed prostate cancer (all stages) for whom androgen deprivation therapy is indicated (except when indicated in a neoadjuvant/adjuvant setting). Subjects may be on ongoing androgen deprivation therapy with a gonadotropin releasing hormone (GnRH) analogue or orchiectomy (i.e., medical or surgical castration) at study entry.
  • Progressive disease by Prostate-specific antigen (PSA) or imaging. Disease progression for study entry is defined as one or more of the following 3 criteria:
  • PSA progression defined by a minimum of 2 rising PSA levels with an interval of ≥1 week between each determination. The PSA value during the pre-investigational period should be ≥2 μg/L (2 ng/mL);
  • Soft tissue disease progression defined by the Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1) for soft tissue disease
  • Bone disease progression defined by two or more new lesions on bone scan

Who cannot join

  • Treatment with chemotherapy within 4 weeks prior to enrollment (Day 1 visit) or plans to initiate treatment with chemotherapy during the study.
  • History of seizure or any condition that may predispose to seizure. Also, history of loss of consciousness, or transient ischemic attack within 12 months prior to enrollment (Day 1 visit).
  • Patients who previously received treatment with Enzalutamide.
  • Concomitant use of drugs that are potent inducers and/or inhibitors of CYP3A4 and CYP2C8.
  • Confirmed CYP2C8 poor metabolizer status based on genotyping analysis.

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • University of Chicago Medical Center

    Chicago, Illinois, 60637

  • University of Colorado - Anschutz Medical Campus

    Denver, Colorado, 80045

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15232

  • South Texas Accelerated Research Therapeutics

    San Antonio, Texas, 78229

Other trials in United States

About this study

Official title: A Phase I, Open-label, Randomized, Parallel, Relative Bioavailability Study Comparing a Capsule and a Tablet Formulation of Enzalutamide Following Multiple Once Daily Doses of 160 mg Enzalutamide in Male Subjects With Prostate Cancer

A multiple dose relative bioavailability study in patients with prostate cancer comparing a capsule and a tablet formulation of enzalutamide.

Being tested
Enzalutamide tablet, Enzalutamide capsule
Keywords
Phase 1, Prostate cancer, Bioavailability, Food effect, Pharmacokinetics, Xtandi, Enzalutamide, MDV3100
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Enzalutamide tabletDrug

    Also called Xtandi, MDV3100

    Oral

  • Enzalutamide capsuleDrug

    Also called Xtandi, MDV3100

    Oral

Study groups in NCT01902251
Study groupRoleWhat they receive
Enzalutamide tabletExperimentalMultiple once daily oral doses of enzalutamide formulated as a tablet for approximately 8 weeks
Receives: Drug: Enzalutamide tablet
Enzalutamide capsuleActive comparatorMultiple once daily oral doses of enzalutamide formulated as liquid-filled soft gelatin capsule for approximately 8 weeks
Receives: Drug: Enzalutamide capsule

What is being measured

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

  1. Pharmacokinetic profile of Enzalutamide under fasted conditions measured by Cmax (Maximum concentration)

    Day 56 (fasted) Cmax under steady state conditions of enzalutamide

    Measured: Day1 through Day 56 (12 samples)

  2. Pharmacokinetic profile of Enzalutamide under fasted conditions measured by AUC0-24h (Area under the concentration-time curve 0-24h)

    Day 56 (fasted) AUC0-24h under steady state conditions of enzalutamide

    Measured: Day1 through Day 56 (12 samples)

Secondary outcomes (3)
  1. Pharmacokinetic profile of Enzalutamide under fasted and fed conditions

    Measured by: Cmax, tmax (Time to attain Cmax), AUC0-24h, Ctrough (Trough concentration), PTR (Peak-trough ratio), CLss/F (Apparent clearance at steady state)

    Measured: Day 1, 8, 29, 55, 56 and 57 (38 samples)

  2. Pharmacokinetic profile of MDPC0001 alone, MDPC0002 alone and sum of Enzalutamide plus MDPC0002

    Measured by: Ctrough, Cmax, tmax, AUC0-24h, Ctrough (24h after dosing), PTR

    Measured: Day 8, 29, 55, 56 and 57 (26 samples)

  3. Evaluation of the safety and tolerability of two oral formulations of Enzalutamide assessed through vital signs, adverse events, electrocardiogram and clinical laboratory assessments

    Measured: Day 1 through Day 58

Timeline

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

  1. First posted18 Jul 2013 (estimated)
  2. Study startNov 2012
  3. Primary completionOct 2013
  4. Study completionOct 2013

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 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01902251
Sponsor's protocol ID
9785-CL-0003
Status last verified
Sep 2014
First submitted
15 Jul 2013
Last updated
9 Sep 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Enzalutamide tablet and Enzalutamide capsule in people with Prostate Cancer and Pharmacokinetics of Enzalutamide, run by Astellas Pharma Europe B.V. at 4 sites in United States.

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 5 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: finished, as of the sponsor's last update on 9 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Pharmacokinetic profile of Enzalutamide under fasted conditions measured by Cmax (Maximum concentration) (time frame: Day1 through Day 56 (12 samples)). The study lists 2 primary outcomes in all. 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 9 Sep 2014.

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