Sunitinib Drug Levels and Outcomes in Kidney Cancer (CRESTO)
Correlating Renal Cell Cancer Treatment Efficacy With Sunitinib Therapeutic Levels and Outcomes
Sunitinib is an oral drug used for treatment of advanced kidney cancer. The standard dose is 50mg, but many patients require a dose decrease due to side-effects. Drug levels of sunitinib vary approximately 10-fold between patients.
This study will measure blood levels of sunitinib and its metabolite, and correlate these with side-effects and the response to the treatment. The study aims to establish whether blood levels change with time, and see how useful blood levels are for monitoring patients treated with sunitinib.
Studie Overzicht
Toestand
Conditie
Gedetailleerde beschrijving
Rationale: Sunitinib is an oral multi-targeted tyrosine kinase inhibitor used for first-line systemic therapy in metastatic renal cell carcinoma. It is metabolised to a pharmacologically active metabolite, SU012662, which is of equal potency to the parent compound. At a standard 50mg daily dose, variability in plasma levels between patients is approximately ten-fold. In clinical trials, over 30% of patients require a dose reduction due to toxicity. However, some patients can tolerate up to 100mg without excessive toxicity. It is unknown if sunitinib clearance changes with time. Pre-clinical experiments observed tyrosine kinase inhibition at a plasma concentration of 50-100ng/ml.
Design: This is a prospective non-randomized, Phase II clinical study. Decision to treat patients with single-agent sunitinib is pre-determined by treating specialists before entering this study. Toxicity and trough sunitinib/metabolite levels will be measured every six weeks during treatment.
Aim: This study will prospectively examine the relationship between steady-state trough levels of sunitinib/metabolites and the time on treatment, in addition to changes in trough levels over time. Trough levels will also be correlated with other measures of efficacy and treatment-related toxicity. Furthermore, we aim to confirm that the putative target of 50ng/ml correlates with toxicity and time on sunitinib.
Studietype
Inschrijving (Verwacht)
Contacten en locaties
Studie Locaties
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New South Wales
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Westmead, New South Wales, Australië, 2145
- Werving
- Crown Princess Mary Cancer Centre, Westmead Hospital
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Contact:
- Howard Gurney, MBBS (Hon), FRACP
- Telefoonnummer: +61298455200
- E-mail: howard.gurney@sydney.edu.au
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Hoofdonderzoeker:
- Howard Gurney, MBBS (Hon), FRACP
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Metastatic renal cell cancer treated with single agent sunitinib
- No known primary liver disease and no other severe or uncontrolled concurrent medical conditions
- Signed informed consent
Exclusion Criteria:
- Patients who are unable to sign informed consent
- Patients unable to give blood
- Patients who are pregnant, nursing or not using an effective contraception method
- Patients who had bone-marrow-transplantation prior to sunitinib treatment
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Time to treatment failure (time on sunitinib treatment)
Tijdsspanne: Sunitinib duration (median)
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This duration extends from the date the patient starts sunitinib until the date sunitinib is abandoned.
The group with sunitinib concentration below the population median are expected to have a median Time to Treatment Failure (TTF) of approximately 8 months, compared with 14 months in those with sunitinib concentration above the population median.
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Sunitinib duration (median)
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Toxicity
Tijdsspanne: Every 6 weeks
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Pre-specified toxicities (BP, fatigue, diarrhoea, stomatitis, hand-foot syndrome) will be graded every 6 weeks
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Every 6 weeks
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Overall survival
Tijdsspanne: 2 years
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Measured from the date of starting sunitinib treatment to the date of death from any cause
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2 years
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Progression-free survival
Tijdsspanne: 2 years
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Progression as determined by the clinician according to RECIST 1.1 definitions
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2 years
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Time to second line therapy
Tijdsspanne: 2 years
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Date of starting sunitinib treatment to the date further systemic therapy is started
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2 years
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Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Howard Gurney, MBBS, FRACP, Crown Princess Mary Cancer Centre, Westmead
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
- HGWH008
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