Lean Body Mass as a Determinant of Docetaxel Pharmacokinetics and Toxicity

NCT ID: NCT01621425

Last Updated: 2015-08-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

25 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-06-30

Study Completion Date

2015-05-31

Brief Summary

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Docetaxel is used as a first line anti-cancer drug in the treatment of several cancers, mainly breast- and metastatic castration-resistant prostate carcinoma.

Anti-cancer drugs are being dosed based on patients estimated Body Surface Area in order to equalize total drug exposure. Nevertheless, docetaxel treatment is characterized by highly interindividual pharmacokinetic variation leading to toxicity and under-treatment.

The investigators will determine which anthropometric parameters, LBM, total body weight (TBW) or BSA correlate best to docetaxel exposure (AUC) for both males and females.

Detailed Description

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Docetaxel is used as a first line anti-cancer drug in the treatment of several cancers, mainly breast- and metastatic castration-resistant prostate carcinoma.

Anti-cancer drugs are being dosed based on patients estimated Body Surface Area in order to equalize total drug exposure. Nevertheless, docetaxel treatment is characterized by highly interindividual pharmacokinetic variation leading to toxicity and under-treatment.

For most anti-cancer drugs, including docetaxel, other anthropometric parameters, such as Lean Body Mass (LBM), have been suggested to be superior to Body Surface Are (BSA) as a determinant for dosing but this has not been implemented in clinical practice.

The investigators will determine which anthropometric parameters, LBM, total body weight (TBW) or BSA correlate best to docetaxel exposure (AUC) for both males and females.

The investigators will determine if occurrence of docetaxel toxicity can be related to dose/LBM.

The investigators will determine which methods to measure LBM: DEXA, Bioelectrical Impedance Assessments (BIA) or formula estimates are accurate enough for dosing calculations to be used for dosing docetaxel.

Conditions

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Breast Cancer Metastatic Castration-resistant Prostate Carcinoma

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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TAC regimen

Female subject diagnosed with breast carcinoma and will receive docetaxel treatment according to standard hospital protocol

Lean body mass

Intervention Type OTHER

Lean Body mass (DEXA scan and Bioelectrical Impedance Assessments) within one week prior to the first docetaxel dose

Total body weight

Intervention Type OTHER

Total Body weight (TBW) (scale) within one week prior to the first docetaxel dose

bloodsampling

Intervention Type OTHER

Blood samples will be taken during the first docetaxel administration of the first cycle, just before docetaxel infusion (t=0 min.), 30 min after start of infusion (t=30 min.), just prior to end of infusion (t=55 min.) and between 3 to 6 hours post start infusion following a limited sampling model

PRODOC regimen

male subject diagnosed with metastatic castration-resistant prostate carcinoma and will receive docetaxel treatment according to standard hospital protocol

Lean body mass

Intervention Type OTHER

Lean Body mass (DEXA scan and Bioelectrical Impedance Assessments) within one week prior to the first docetaxel dose

Total body weight

Intervention Type OTHER

Total Body weight (TBW) (scale) within one week prior to the first docetaxel dose

bloodsampling

Intervention Type OTHER

Blood samples will be taken during the first docetaxel administration of the first cycle, just before docetaxel infusion (t=0 min.), 30 min after start of infusion (t=30 min.), just prior to end of infusion (t=55 min.) and between 3 to 6 hours post start infusion following a limited sampling model

Interventions

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Lean body mass

Lean Body mass (DEXA scan and Bioelectrical Impedance Assessments) within one week prior to the first docetaxel dose

Intervention Type OTHER

Total body weight

Total Body weight (TBW) (scale) within one week prior to the first docetaxel dose

Intervention Type OTHER

bloodsampling

Blood samples will be taken during the first docetaxel administration of the first cycle, just before docetaxel infusion (t=0 min.), 30 min after start of infusion (t=30 min.), just prior to end of infusion (t=55 min.) and between 3 to 6 hours post start infusion following a limited sampling model

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Subject is at least 18
* Subject is able and willing to sign the Informed Consent Form prior to screening evaluations
* Female subject diagnosed with breast carcinoma and will receive docetaxel treatment according to standard hospital protocol (TAC regimen) or male subject diagnosed with metastatic castration-resistant prostate carcinoma and will receive docetaxel treatment according to standard hospital protocol (PRODOC regimen)
* Subject has a live expectancy of 12 weeks or greater
* Absolute neutrophile count (ANC) \> 1.5 x 10E9/L
* Platelet count \> 100 x 10E9/L
* Serum creatinine ≤ 2 x ULN
* Total bilirubin level \< 1.5 x ULN

Exclusion Criteria

* Docetaxel treatment within the last year
* Moderate or severe liver impairment; \[ALAT and/or ASAT ≥ 1.5 ULN\] and \[AF ≥ 2.5 ULN\]
* Current therapy with any drug, dietary supplements, or other compounds, or have been used in the last 2 weeks prior to the first docetaxel administration, known to inhibit or induce CYP3A4.
* Inability to understand the nature and extent of the study and the procedures required
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Radboud University Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Rien Hoge, PharmD

Role: PRINCIPAL_INVESTIGATOR

Deventer Ziekenhuis

Frank Jansman, PharmD, PhD

Role: STUDY_CHAIR

Deventer Ziekenhuis

Locations

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Deventer Hospital

Deventer, , Netherlands

Site Status

Radboud University Nijmegen Medical Centre

Nijmegen, , Netherlands

Site Status

Countries

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Netherlands

Other Identifiers

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UMCN-AKF 11.01

Identifier Type: -

Identifier Source: org_study_id

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