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Pharmacokinetics of MDV3100Phase 1NCT01911728

Drug-drug Interaction Study With MDV3100 and a Cocktail of Substrates

A Phase 1 study testing MDV3100, Pioglitazone and Warfarin in people with Pharmacokinetics of MDV3100 and Castration Resistant Prostate Cancer (CRPC), run by Astellas Pharma Europe B.V. at 2 sites in South Africa.

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 drug-drug interaction study to investigate the potential pharmacokinetic interaction between MDV3100 and a cocktail of substrates for pioglitazone (CYP2C8 substrate), S-warfarin (CYP2C9 substrate), omeprazole (CYP2C19 substrate), and midazolam (CYP3A4 substrate). Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
MDV3100, Pioglitazone and Warfarin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
2 sitesSouth Africa
Study dates
25 Jul 2011to 21 Feb 2012
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 or cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell features;
  • Ongoing androgen deprivation therapy with a gonadotropin releasing hormone (GnRH) analogue or orchiectomy (i.e., medical or surgical castration);
  • Progressive disease by prostate specific antigen (PSA) or imaging whether or not after chemotherapy in the setting of medical or surgical castration. Disease progression for study entry is defined as one or more of the following 3 criteria:
  • PSA progression defined by a minimum of 3 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 (see Appendix A);
  • Bone disease progression defined by two or more new lesions on bone scan.

Who cannot join

  • Confirmed CYP2C8, CYP2C9, or CYP2C19 poor metabolizer status based on genotyping analysis;
  • Absolute neutrophil count < 1,500/μL, platelet count < 100,000/μL, and hemoglobin < 5.6 mmol/L (9 g/dL) during the screening period (NOTE: patients may not have received any growth factors or blood transfusions within 7 days prior to the hematologic laboratory values obtained during the screening period);
  • Total bilirubin > 1.5 times, or alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 2 times the upper limit of normal during the screening period;
  • Creatinine > 177 μmol/L (2 mg/dL) during the screening period;
  • Albumin < 30 g/L (3.0 g/dL) during the screening period;
  • Treatment with androgen receptor antagonists (bicalutamide, flutamide, nilutamide), 5 α reductase inhibitors (finasteride, dutasteride), estrogens, or chemotherapy within 4 weeks prior to enrollment (Day 1 visit) or plans to initiate treatment with any of these treatments during the study;
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  • Use of herbal products that may decrease PSA levels (e.g., saw palmetto) or systemic corticosteroids greater than the equivalent of 10 mg of prednisone/prednisolone per day within 4 weeks prior to enrollment (Day 1 visit) or plans to initiate treatment with any of these treatments during the study;
  • Structurally unstable bone lesions suggesting impending fracture;
  • History of seizure, including any febrile seizure, loss of consciousness, or transient ischemia attack within 12 months prior to enrollment (Day 1 visit), or any condition that may pre-dispose to seizure (e.g., prior stroke, brain arteriovenous malformation, head trauma with loss of consciousness requiring hospitalization)

Trial locations and contacts

2 sites in 1 country.

South Africa2 sites
  • Parexel

    George

  • Parexel/Qdot Pharma

    Port Elizabeth

Other trials in South Africa

About this study

Official title: A Phase I Open-label Study to Evaluate the Effect of Multiple Doses of MDV3100 (ASP9785) on the Pharmacokinetics of Substrates for CYP2C8, CYP2C9, CYP2C19, and CYP3A4 in Patients With Castration-resistant Prostate Cancer

A drug-drug interaction study to investigate the potential pharmacokinetic interaction between MDV3100 and a cocktail of substrates for pioglitazone (CYP2C8 substrate), S-warfarin (CYP2C9 substrate), omeprazole (CYP2C19 substrate), and midazolam (CYP3A4 substrate).

Being tested
MDV3100, Pioglitazone, Warfarin, Omeprazole, Midazolam
Keywords
Drug-Drug Interaction, Phase 1, MDV3100, Xtandi, Enzalutamide

What participants receive

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

Study groups in NCT01911728
Study groupRoleWhat they receive
Multiple doses of MDV3100ExperimentalMultiple doses of MDV3100 and a single dose of pioglitazone and a single dose of cocktail containing -warfarin, omeprazole and midazolam
Receives: Drug: MDV3100; Drug: Pioglitazone; Drug: Warfarin; Drug: Omeprazole; Drug: Midazolam

What is being measured

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

  1. Assessment of the pharmacokinetic profile of pioglitazone (CYP2C8 substrate) in combination with MDV3100 PTM and MDV3100

    (Maximum concentration (observed))Cmax, (Area Under Curve from the time of dosing to the last measurable concentration)AUC0-t, (AUC extrapolated to infinity)AUC0-inf

    Measured: Day 1 through Day 72 (75 times)

  2. Assessment of the pharmacokinetic profile of S-warfarin (CYP2C9 substrate) in combination with MDV3100 PTM and MDV3100

    (Maximum concentration (observed))Cmax, (Area Under Curve from the time of dosing to the last measurable concentration)AUC0-t, (AUC extrapolated to infinity)AUC0-inf

    Measured: Day 1 through Day 72 (75 times)

  3. Assessment of the pharmacokinetic profile of omeprazole (CYP2C19 substrate) in combination with MDV3100 PTM and MDV3100

    (Maximum concentration (observed))Cmax, (Area Under Curve from the time of dosing to the last measurable concentration)AUC0-t, (AUC extrapolated to infinity)AUC0-inf

    Measured: Day 1 through Day 72 (75 times)

  4. Assessment of the pharmacokinetic profile of midazolam (CYP3A4 substrate) in combination with MDV3100 PTM and MDV3100

    (Maximum concentration (observed))Cmax, (Area Under Curve from the time of dosing to the last measurable concentration)AUC0-t, (AUC extrapolated to infinity)AUC0-inf

    Measured: Day 1 through Day 72 (75 times)

Secondary outcomes (2)
  1. Assessment of the pharmacokinetic profile of substrates pioglitazone (CYP2C8 substrate), S-warfarin (CYP2C9 substrate), omeprazole (CYP2C19 substrate), and midazolam (CYP3A4 substrate) in combination with MDV3100 PTM and MDV3100

    (Time to attain Cmax)tmax (Apparent terminal elimination half-life)t1/2, (Apparent total body clearance after extravascular dosing)CL/F, (Apparent volume of distribution during the terminal phase after extravascular dosing)Vz/F, Cmax, AUC0-t, AUC0-inf, (Pre-dose plasma concentration)C0h, (Minimum concentration (observed))Cmin, (AUC between two consecutive doses at steady-state)AUCtau, (Peak-trough ratio)PTR

    Measured: Day 1 through Day 72 (75 times)

  2. Monitoring of safety and tolerability through assessment of vital signs, Electrocardiogram (ECG) and clinical safety laboratory and, adverse events

    Measured: Day 1 through Day 97

Timeline

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

  1. First posted30 Jul 2013 (estimated)
  2. Study start25 Jul 2011
  3. Primary completion21 Feb 2012
  4. Study completion21 Feb 2012

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
Treatment
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01911728
Sponsor's protocol ID
9785-CL-0007
Other IDs
2011-000163-26
Status last verified
Jun 2017
First submitted
26 Jul 2013
Last updated
26 Jun 2017
Results posted
No
Data monitoring committee
No

Publications

  • Gibbons JA, de Vries M, Krauwinkel W, Ohtsu Y, Noukens J, van der Walt JS, Mol R, Mordenti J, Ouatas T. Pharmacokinetic Drug Interaction Studies with Enzalutamide. Clin Pharmacokinet. 2015 Oct;54(10):1057-69. doi: 10.1007/s40262-015-0283-1.

    PubMed 25929560

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MDV3100, Pioglitazone and Warfarin in people with Pharmacokinetics of MDV3100 and Castration Resistant Prostate Cancer (CRPC), run by Astellas Pharma Europe B.V. at 2 sites in South Africa.

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 6 inclusion and 9 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 26 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in South Africa. 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?

Assessment of the pharmacokinetic profile of pioglitazone (CYP2C8 substrate) in combination with MDV3100 PTM and MDV3100 (time frame: Day 1 through Day 72 (75 times)). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01911728, which also lists 1 linked publication.

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 26 Jun 2017.

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