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CYP3A PhenotypingDocetaxelNCT01110291

Study of Usefulness of Genotyping to Predict Docetaxel Exposure and Adverse Events

An observational study of CYP3A Phenotyping and CYP3A5 and MDR1 Genotyping, run by University of Turku at 1 site in Finland.

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

Twenty patients with verified high risk breast cancer will be included in the study. Patients will receive three cycles of docetaxel followed by three cycles of CEF for their adjuvant treatment. The phenotype of CYP3A and the genotype of CYP3A5 and MDR1 will be assessed. Read more about this study

Who is it for?
Ages 18 to 60 years, women only
What is being tested?
docetaxel + CEF
Type of treatment
Injection or infusion
How many people
20 participants
Where
1 siteFinland
Study dates
Apr 2003to Mar 2009
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 18 to 60 years
  • Women only
  • No healthy volunteers
  • Adult

Study population: Twenty patients with verified high risk breast cancer.

Who may be able to join

  • Subjects may be included in the study only if they meet all of the following criteria:
  • The patient has received information on the purpose of the study and the meaning of the treatment, and has given verbal and written consent to participate in the study. The patient is accessible for treatment and follow-up.
  • Histologically verified diagnosis of breast cancer
  • High risk for recurrence ( node positive or node negative if T2 with histological grade 2 or 3, or Pgr negative)
  • No metastases
  • Females, age =<60
  • No concomitant regular medication which is either substrate, inducer or inhibitor of CYP3A4

Who cannot join

  • Subjects will be excluded from the study for any of the following reasons:
  • Poor performance status,>=2 according to WHO
  • Inadequate bone marrow reserve defined as:
  • hemoglobin < 100 g/L
  • leukocytes < 3.0 x 10E9/L or neutrophiles < 1.5 x 10E9/L
  • plateless < 120 x 10E9/L
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  • Inadequate liver function defined as:
  • ALAT is > 1.5 x units of normal level
  • elevated bilirubin (unless verified Gilbert´s syndrome)
  • alkaline phosphatase is > 2.5 x units of normal level
  • History of concomitant serious physical or psychiatric disease, which makes a regular cytotoxic treatment impossible
  • cardiac insufficience; severe arrhythmia; severe hypertension; cardiac infarction within one year or other active cardiac disease
  • pregnant or lactating patients
  • abuse of alcohol or any narcotic substances

Trial locations and contacts

1 site in 1 country.

Finland1 site
  • Turku University Hospital

    Turku, 20521

Other trials in Finland

About this study

Official title: Activity of CYP3A and Genotypes of CYP3A5 and MDR1 as Predictors of the Clearance and Adverse Effects of Docetaxel, and the Effect of Docetaxel to CYP3A Activity in Previously Untreated Breast Cancer Patients

Twenty patients with verified high risk breast cancer will be included in the study. Patients will receive three cycles of docetaxel followed by three cycles of CEF for their adjuvant treatment. The phenotype of CYP3A and the genotype of CYP3A5 and MDR1 will be assessed. Also the effect of docetaxel in the activity of CYP3A will be measured by peroral midazolam.

Primary Object:

Read more

The primary object of this study is to define, if it is possible to predict the clearance and/ or toxicity of docetaxel by assessing

  • activity of CYP3A4 by midazolam test (CYP3A4 phenotype)
  • CYP3A5 genotype
  • MDR1 genotype

Secondary object:

The secondary object of this study is to define whether the treatment with docetaxel alters the activity of CYP3A4 enzyme in previously untreated breast cancer patients.

Being tested
docetaxel + CEF
Keywords
docetaxel toxicity, CYP3A activity, CYP3A5, MDR1, peroral midazolam

What participants receive

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

  • docetaxel + CEFDrug

    Docetaxel 80 mg/m² of body surface area (BSA) will be given as an i.v. infusion during 60 minutes on day 0 in a 20-day schedule. The cycle is repeated three times.

    Three weeks after the last docetaxel regimen, all patients will receive the CEF-combination treatment. In CEF-combination cyclophosphamide will be given 600 mg/m²of BSA as an i.v. infusion during 15 - 30 minutes on day 0 in a 20-day schedule. This is followed by fluorouracil given 600 mg/m² of BSA as an i.v. infusion during 15 - 30 minutes . Epirubicin will be given 60 mg/m² of BSA as an i.v. infusion during 15 - 30 minutes. This combination therapy will be repeated three times.

Study groups in NCT01110291
Study groupRoleWhat they receive
Breast cancerTwenty patients with verified high risk breast cancer will be included in the study.
Receives: Drug: docetaxel + CEF

What is being measured

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

  1. docetaxel toxicity

    There were no specific outcome measures in this study. The chemotherapy was given in a predetermined schedule and additionally blood samples were drawn for genotyping. The adverse events were recorded and compared with the data from genotyping.

Secondary outcomes (1)
  1. survival

    No specific outcome measures. Survival data was collected and compared with the data from genotyping.

Timeline

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

  1. First posted26 Apr 2010 (estimated)
  2. Study startApr 2003
  3. Primary completionJan 2004
  4. Study completionMar 2009

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
Case only
Time perspective
Prospective
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01110291
Sponsor's protocol ID
XRP 6976A/6022
Acronym
Docetaxel
Status last verified
Apr 2010
First submitted
22 Apr 2010
Last updated
27 Apr 2010
Results posted
No
Data monitoring committee
No

Publications

  • Hilli J, Sailas L, Jyrkkio S, Pyrhonen S, Laine K. NCT01110291: induction of CYP3A activity and lowered exposure to docetaxel in patients with primary breast cancer. Cancer Chemother Pharmacol. 2011 Jun;67(6):1353-62. doi: 10.1007/s00280-010-1426-6. Epub 2010 Aug 27.

    PubMed 20798939

Questions about this trial

What is this clinical trial studying?

An observational study of CYP3A Phenotyping and CYP3A5 and MDR1 Genotyping, run by University of Turku at 1 site in Finland.

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 7 inclusion and 14 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 27 Apr 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Finland. 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.

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?

docetaxel toxicity. 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 NCT01110291, 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 27 Apr 2010.

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