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Sunitinib Drug Levels and Outcomes in Kidney Cancer (CRESTO)

13. maj 2014 opdateret af: Howard Gurney, Western Sydney Local Health District

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.

Studieoversigt

Status

Ukendt

Betingelser

Detaljeret beskrivelse

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.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

35

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Australien
    • New South Wales
      • Westmead, New South Wales, Australien, 2145
        • Rekruttering
        • Crown Princess Mary Cancer Centre, Westmead Hospital
        • Kontakt:
        • Ledende efterforsker:
          • Howard Gurney, MBBS (Hon), FRACP

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Adults being treated with sunitinib monotherapy for metastatic renal cell carcinoma

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Time to treatment failure (time on sunitinib treatment)
Tidsramme: Sunitinib duration (median)
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.
Sunitinib duration (median)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Toxicity
Tidsramme: Every 6 weeks
Pre-specified toxicities (BP, fatigue, diarrhoea, stomatitis, hand-foot syndrome) will be graded every 6 weeks
Every 6 weeks
Overall survival
Tidsramme: 2 years
Measured from the date of starting sunitinib treatment to the date of death from any cause
2 years
Progression-free survival
Tidsramme: 2 years
Progression as determined by the clinician according to RECIST 1.1 definitions
2 years
Time to second line therapy
Tidsramme: 2 years
Date of starting sunitinib treatment to the date further systemic therapy is started
2 years

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Western Sydney Local Health District

Efterforskere

  • Ledende efterforsker: Howard Gurney, MBBS, FRACP, Crown Princess Mary Cancer Centre, Westmead

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. maj 2012

Primær færdiggørelse (Forventet)

1. december 2014

Studieafslutning (Forventet)

1. december 2014

Datoer for studieregistrering

Først indsendt

2. august 2012

Først indsendt, der opfyldte QC-kriterier

17. oktober 2012

Først opslået (Skøn)

22. oktober 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

15. maj 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. maj 2014

Sidst verificeret

1. maj 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • HGWH008

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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