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- Klinische proef NCT01286896
Use of Individual Pharmacokinetically (PK)-Guided Sunitinib Dosing: A Feasibility Study in Patients With Advanced Solid Tumors
Use of Individual PK-guided Sunitinib Dosing: A Feasibility Study in Patients With Advanced Solid Tumors
The purpose of this prospective study is to determine the safety and feasibility of pharmacokinetically (PK) guided dosing of sunitinib in 30 patients.
At day 15 ± 1day, day 29 ± 1day and after 8 weeks ± 1day of sunitinib treatment sunitinib and SU12662 trough levels will be measured. Depending on the sunitinib and SU12662 trough levels (and toxicity) dose adjustments will be made.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Sunitinib is an orally available inhibitor of vascular endothelial growth factor (VEGFR), platelet-derived growth factor (PDGF), cytokine receptor (c-KIT), and receptor tyrosine kinase (FLT-3) activity. Sunitinib is proven effective as single agent in several solid tumor types and is approved for use in advanced renal cell cancer (RCC) and imatinib-resistant or -intolerant gastrointestinal stromal tumors (GISTs). However, in a large percentage of patients (30 and 50%), dose reductions are required because of multiple grade 2 toxicities or due to grade 3 or 4 toxicities. Therefore, the currently used dosing schedule is not optimal.
Recently, a dose-efficacy relation was established for sunitinib treatment. This large meta-analysis of pharmacokinetic/pharmacodynamic data from studies performed in mRCC patients, GIST patients and patients with solid tumors, clearly showed a relationship between sunitinib exposure and efficacy and tolerability. Both time to progression (TTP) and overall survival (OS) were significantly better for mRCC patients with high area under the curve (AUC) compared to low AUC. This was not only observed for sunitinib exposure but also for its active metabolite SU12662. In addition, there was a significant relationship between exposure and probability of partial response (PR) or complete response (CR) in mRCC patients (p=0.00001), indicating that a dose intensity in patients should be as high as possible. Target plasma concentrations of sunitinib plus metabolite (N-desethyl sunitinib) are in the range of 50 to 100 ng/mL, as deduced from pharmacokinetic (PK) / pharmacodynamic (PD) preclinical data. Since the dose-efficacy relation for sunitinib treatment is solely established in a retrospective (meta-) analysis from patients treated in several studies, we propose to perform a prospective feasibility study in 30 patients with PK guided dosing of sunitinib. If PK guided once-daily continuous sunitinib dosing is feasible, a RCT in mRCC patients will be performed comparing PK guided dosing with a standard sunitinib dosing schedule.
Studietype
Inschrijving (Verwacht)
Fase
- Fase 1
Contacten en locaties
Studie Locaties
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Amsterdam, Nederland, 1066CX
- Werving
- The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital
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Contact:
- Neeltje Steeghs
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Hoofdonderzoeker:
- Neeltje Steeghs, MD, PhD
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Histopathologically confirmed advanced tumors for which sunitinib is considered standard or patients with advanced or metastatic tumors for whom no standard therapy is available;
- Age more then 18 years;
- Able and willing to give written informed consent;
- Able and willing to undergo blood sampling for pharmacogenetic and pharmacokinetic analysis;
- Able and willing to undergo a tumor biopsy for DNA sequencing;
- Able to swallow oral medications
- Life expectancy more then 3 months, allowing adequate follow up of toxicity evaluation and antitumor activity;
- WHO performance status of 0 or 1;
- Evaluable disease according to RECIST 1.1 criteria;
Minimal acceptable safety laboratory values
- ANC of => 1.5 x 109 /L
- Platelet count of => 100 x 109 /L
- Hepatic function as defined by serum bilirubin => 1.5 x ULN, ASAT and ALAT
- 2.5 x ULN
- Renal function as defined by serum creatinine => 1.5 x ULN or creatinine clearance => 50 mL/min (by Cockcroft-Gault formula);
- No radio- or chemotherapy or other investigational drug treatment within the last 4 weeks prior to study entry, with the exception of palliative radiotherapy (8 Gy or on the extremities).
Exclusion Criteria:
- Current treatment in another therapeutic clinical trial
- Congestive heart failure, myocardial infarction or coronary artery bypass graft in the previous six months, ongoing severe or unstable angina or any unstable arrhythmia requiring medication
- Patients with known alcoholism, drug addiction and/or psychotic disorders in the history that are not suitable for adequate follow up
- Women who are pregnant or breast feeding.
- Both men and women enrolled in this trial must agree to use a reliable contraceptive method throughout the study (definition of adequate contraceptive methods will be based on the judgment of the principal investigator or a designated associate).
- Legal incapacity
- Known allergy/intolerance to sunitinib or any of the excipients
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: Sunitinib
Sunitinib is administered in oral capsules of 12.5 mg.
Patients will start with a continuous once-daily dose of 37.5 mg.
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Patients will start treatment with a continuous once-daily dose of 37.5 mg sunitinib. After 22 days the first dose modification will be performed based on the total trough levels (TTL) combined for sunitinib plus SU12662 as measured by dried blood spot (DBS) analyses taken at day 15 ± 1day. A second dose modification will be performed after 36 days (7 days after the first dose adjustment) based on the TTL taken at day 29 ± 1day. One treatment cycle is defined as 28 days. After 8 weeks a third analyses for TTL will be performed without further consequences for sunitinib dosing. Patients will be evaluated by CT- or MRI-scans for the response to therapy at week 8, and thereafter every 12 weeks. One blood sample will be harvested for pharmacogenetic analyses.
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Number of Participants with Adverse Events as a Measure of Safety and Tolerability
Tijdsspanne: During treatment with sunitinib Adverse Events will be recorded up to 30 days after treatment. Patient will remain on treatment untill the disease progression, 1 year in average
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To determine the safety and feasibility of PK guided dosing of sunitinib, weekly physical examination, blood hematology and blood chemistry parameters in the first 2 cycles, and monthly thereafter, will guide the safety of the treatment.
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During treatment with sunitinib Adverse Events will be recorded up to 30 days after treatment. Patient will remain on treatment untill the disease progression, 1 year in average
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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objective response rate
Tijdsspanne: 8 weeks after initiation and thereafter every 12 weeks until disease progression, 1 year in average
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To determine the objective response rate, CT-scan and/or MRI-scans will be performed 8 weeks after initiation of therapy and thereafter every 12 weeks until documented disease progression according to the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
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8 weeks after initiation and thereafter every 12 weeks until disease progression, 1 year in average
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time to tumor progression
Tijdsspanne: Until the disease progression, 1 year in average
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To determine the time from start of study treatment to first documentation of objective tumor progression defined by 1.1 RECIST criteria performing CT/MRI scans 8 weeks after initiation of therapy and thereafter every 12 weeks
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Until the disease progression, 1 year in average
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validating the associations between genetic markers
Tijdsspanne: C1 D15 and C1 D29 and after 8 weeks
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To start with the validation of previously identified associations between genetic markers in the pharmacokinetic and pharmacodynamic pathways of sunitinib and the development of toxicities. At day 15 ± 1day, day 29 ± 1day and after 8 weeks ± 1day - PK: Fingerprick for dried blood spot analysis of total trough levels of sunitinib and SU12662. Once during cycle 1: EDTA blood samples for pharmacogenetic analyses |
C1 D15 and C1 D29 and after 8 weeks
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tumor biopsy and peripheral blood sample for DNA sequencing
Tijdsspanne: Day -7
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Seven days prior to study medication treatment the tumor boipsy and blood draw will be performed to support the validation of DNA sequencing of tissue derived from a tumor biopsy and to obtain the DNA profile of the patient's tumor in order to (i) identify correlations between the genetic profile of the tumor and toxicity and efficacy parameters of sunitinib , and (ii) identify patients who could have advantage of specific follow-up treatment strategies.
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Day -7
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Progression free survival
Tijdsspanne: Untill disease progression, 1 year in average
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Measuring the time between the study start and the RECIST defined disease progression on CT/MRI scans performed 8 weeks after initiation of therapy and thereafter every 12 weeks
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Untill disease progression, 1 year in average
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Neeltje Steeghs, Md, PhD, The Netherlands Cancer Institute
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Verwacht)
Studie voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- M10PKS
- 2010-021454-20 (EudraCT-nummer)
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