Predictive Value of 99mTc- Albumin Spheres Before 90Y- SIR Therapy (EXPLOSIVE)
3. september 2014 oppdatert av: Jens Ricke, University of Magdeburg
Exploratory Study to Assess the Predictive Value of 99mTc-labeled Albumin Spheres for the Intrahepatic Distribution of 90Y SIR Spheres in Patients With Liver Metastases of Colorectal Tumors
The purpose of this study is to assess the predictive value of 99mTechnetium (Tc)- labeled albumin in macroaggregates (MAA) and in microspheres (B20) injected into the common hepatic artery for the distribution of 90Yttrium- Selective Internal Radiotherapy (SIRT)-spheres (SIR- spheres).
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Patients with metastases of colorectal tumors will be included into this study provided that they are scheduled for 90Y SIR spheres therapy for clinical reasons.
Before 90Y SIR spheres therapy, patients will receive a diagnostic examination with injection of MAA (group A) or B20 (group B) into the common hepatic artery to rule out a relevant shunt volume to the lung or other extra-hepatic locations (e.g., stomach) as recommended by the manufacturer.
After the diagnostic scan, therapy with SIR- spheres will be conducted in 2 separate sessions with selective injection of 90Y labeled SIR spheres into the right and left hepatic artery at two separate occasions (routine procedure at the University of Magdeburg, Germany).
In addition, therapeutic sessions will include the selective injection of MAA or B20 into the right / left hepatic artery according to a predefined plan (either alone or as a mixture with the SIR spheres).The intra-hepatic distribution of 90Y labeled SIR spheres will be assessed using "Bremsstrahlen"- Single- Photon- Emission- Computed- Tomography (SPECT)- imaging, the distribution of MAA and B20 will be assessed using SPECT imaging.
Studietype
Intervensjonell
Registrering (Faktiske)
24
Fase
- Fase 2
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Sachsen-Anhalt
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Magdeburg, Sachsen-Anhalt, Tyskland, 39120
- Clinic for Radiology and Nuclear Medicine
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år til 85 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- age: between 18 and 85 years
- if female, postmenopausal or surgically sterilized
- liver metastases of a colorectal tumor in both liver lobes
- scheduled for therapy with 90Y SIR spheres for clinical reasons
- life expectancy longer than 6 months
- willing and able to undergo all study procedures
- having voluntarily provided written and fully informed consent
Exclusion Criteria:
- presenting with a contraindication to 90Y SIR spheres therapy
- variants of the arterial hepatic blood supply which interfere with the objectives of this study (e.g., variants of Michel)
- women who are pregnant, lactating or who are of childbearing potential
- patients being clinically unstable
- uncooperative, in the investigator's opinion
- any contraindication to SIRT treatment
- any concomitant chemotherapy
- shunt to the lung >10%
- shunt to any extrahepatic organ (except the lung)
- having been previously enrolled in this study
- participating in another prospective clinical trial
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Diagnostisk
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: 99mTc- labeled albumin macroaggregates (MAA)
Diagnostic MAA- SPECT- imaging.
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Intraarterial application of 5ml containing 500.000 particles with an activity of 150MBq.
Andre navn:
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Eksperimentell: 99mTc- labeled albumin microspheres (B20)
Diagnostic B20- SPECT- imaging.
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Intraarterial application of 5ml containing 150.000 particles with an activity of 150 MBq.
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Percentage of liver volume for which the accumulation of SIR spheres was correctly predicted by the preceding Tc-99m MAA scintigraphy
Tidsramme: Tc-99m MAA scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
The percentage in liver volume for which the accumulation of SIR spheres during therapy was correctly predicted by Tc-99m MAA will be given by a blinded reader in categories by visual assessment (0-10%, >10-20%, >20-30%, …, >90-100%) (only patients who received Tc-99m MAA during evaluation.)
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Tc-99m MAA scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Percentage of liver volume for which the accumulation of SIR spheres was correctly predicted by the preceding Tc-99m B20 scintigraphy
Tidsramme: Tc-99m B20 scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
|
The percentage in liver volume for which the accumulation of SIR spheres during therapy was correctly predicted by B20 will be given by a blinded reader in categories by visual assessment (0-10%, >10-20%, >20-30%, …, >90-100%) (only patients who received Tc-99m B20 during evaluation.)
|
Tc-99m B20 scan one day prior to radioembolisation; Bremsstahlen-Scan after SIR spheres therapy
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Pharmacokinetic parameters of the intrahepatic distribution of MAA and B20.
Tidsramme: One day prior to SIRT
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elimination half-life calculated in [min] from the decay-corrected radioactivity concentration measured over the liver; % radioactivity trapped in the liver at the individual measuring time points (of total radioactivity measured over the liver in the first scan); percent lung shunt (percentage of liver activity leaking to the lung at the individual time points)
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One day prior to SIRT
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Adverse events as elicited upon indirect questioning.
Tidsramme: At any visit.
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Number of patients with adverse events (AEs), number of AEs per patient; descriptive listing of all AEs
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At any visit.
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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Jens Ricke, Prof. Dr., University of Magdeburg, Faculty for Medicine
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. juli 2010
Primær fullføring (Faktiske)
1. juli 2011
Studiet fullført (Faktiske)
1. august 2013
Datoer for studieregistrering
Først innsendt
23. juli 2010
Først innsendt som oppfylte QC-kriteriene
20. august 2010
Først lagt ut (Anslag)
23. august 2010
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
4. september 2014
Siste oppdatering sendt inn som oppfylte QC-kriteriene
3. september 2014
Sist bekreftet
1. september 2014
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- RAD050
- 2008-005609-21 (EudraCT-nummer)
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .