- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01516047
A Pharmacokinetic Study of Abiraterone Acetate in Patients With Severe Hepatic Impairment Compared to Patients With Normal Hepatic Function
24. juni 2014 oppdatert av: Janssen Research & Development, LLC
An Open-Label Pharmacokinetic Study of Abiraterone Acetate Suspension in Subjects With Severe Hepatic Impairment Compared to Matched Control Subjects With Normal Hepatic Function
The purpose of this study is to evaluate systemic exposure of abiraterone acetate in adult male patients with severe hepatic impairment and is being conducted to collect information that will support clinical dosing recommendations for this subpopulation.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
This is a non-randomized (individuals will not be assigned by chance to study treatments), open-label (individuals will know the identity of study treatments), single dose, 2-cohort study of abiraterone acetate in approximately 16 adult men.
Participants will either have severe hepatic impairment (Cohort 1) or qualify for the control group with normal hepatic function (Cohort 2).
This study will consist of a screening period followed by a 4-day open-label treatment phase and subsequently a 28-day follow up after the study dose of abiraterone acetate suspension.
Patients will be admitted to the study center on Day -1, a single dose of study drug will be administered on the morning of Day 1, and patients will remain at the study center until completion of the 72-hour pharmacokinetic (PK; study of what the body does to a drug) blood sample collection in the morning of Day 4. Enrollment will begin sequentially with patients in the severe hepatic impairment cohort.
Enrollment for Cohort 1 will be staggered in order to evaluate safety and tolerability.
The study will not proceed if >=Grade 3 toxicity or serious adverse events considered related to abiraterone acetate are observed.
Additional patients may be enrolled if at least 8 patients in each cohort do not complete the required assessments, including the PK blood sample collections.
The aim will be to treat the remaining patients in Cohort 1 at a suspension dose yielding an exposure equivalent to 1000 mg tablet in healthy individuals.
If the dose is adjusted after Study Evaluation Team review, additional patients may be enrolled to ensure at least 8 patients complete the study at the final dose.
Once enrollment of patients in the severe hepatic impairment cohort is completed, the matched-control cohort will be dosed.
Serial PK samples will be collected during the open-label treatment phase as detailed in the protocol.
Safety will be monitored throughout the study.
Studietype
Intervensjonell
Registrering (Faktiske)
16
Fase
- Fase 1
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
-
-
California
-
Anaheim, California, Forente stater
-
-
Florida
-
Orlando, Florida, Forente stater
-
-
Texas
-
San Antonio, Texas, Forente stater
-
-
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
35 år til 80 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Mann
Beskrivelse
Inclusion Criteria:
- All participants are to be cancer free and have a body mass index (BMI) between 18 kg/m2 to 40 kg/m2, inclusive, and body weight not less than 50 kg.
- Cohort 1is characterized by severe hepatic impairment (as described by the Child-Pugh Classification C).
- Cohort 2 represents a matched control characterized by healthy participants with normal hepatic function.
- Control cohort participants will be age matched ± 10 years and BMI matched within 20% of the means of the severe hepatic impairment cohort; no other clinical criteria will be matched.
- Control cohort participants must be in good health, with no clinically significant findings from medical history, physical examination, laboratory evaluations, 12-lead electrocardiogram and vital signs.
- Patients with hepatic impairment are required to be on medication and/or treatment regimen to treat their underlying hepatic impairment or medical conditions before dosing with study drug.
Exclusion Criteria:
- Participants in the control cohort who test positive for hepatitis B surface antigen (HBsAg) or hepatitis C antibodies will not be permitted to enroll in the study.
- Patients with hepatic impairment who have acute or exacerbating hepatitis, fluctuating or rapidly deteriorating hepatic function as indicated by widely varying or worsening of clinical and/or laboratory signs of hepatic impairment in the judgment of either the investigator or the sponsor's medical monitor will be excluded from participating in the study.
- Patients with hepatic impairment taking antiviral therapy for treatment of active hepatitis infection at the time of screening, previously diagnosed with hepatocellular carcinoma, or who have a history of biliary sepsis within the past 2 years.
- Patients with severe hepatic impairment should not have Gilbert's syndrome or >= Grade 3 hepatic encephalopathy where the patient lacks the capacity to provide informed consent as judged by the investigator. Mild or moderate hepatic encephalopathy that would not impede informed consent in the investigator's judgment is permitted.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
---|---|
Eksperimentell: Cohort 1
Patients with severe hepatic impairment.
|
125 mg to 2000 mg abiraterone acetate suspension on Day 1
|
Eksperimentell: Cohort 2
Healthy individuals with normal hepatic function.
|
2000 mg abiraterone acetate suspension on Day 1
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Mean plasma concentrations of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Mean plasma protein binding concentrations of abiraterone
Tidsramme: Screening Day -2
|
Screening Day -2
|
Maximum plasma concentrations of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Time to reach the maximum plasma concentration of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Area under the plasma concentration-time curve from time 0 to 24 hours after dosing of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Area under the plasma concentration-time curve from time 0 to infinite time of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Percentage of area under the plasma concentration-time curve from time 0 to infinite time obtained by extrapolation of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Elimination half-life associated with the terminal slope of the semilogarithmic drug concentration-time curve of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Time to last quantifiable plasma concentration of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Total apparent clearance of drug after extravascular administration uncorrected for absolute bioavailability of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Apparent volume of distribution after extravascular administration uncorrected for absolute bioavailability of abiraterone
Tidsramme: Up to Day 4
|
Up to Day 4
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
The number of participants affected by an adverse event
Tidsramme: Up to Day 29
|
Up to Day 29
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Etterforskere
- Studieleder: Janssen Research & Development, LLC Clinical Research, Janssen Research & Development, LLC
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
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. januar 2012
Primær fullføring (Faktiske)
1. september 2012
Studiet fullført (Faktiske)
1. september 2012
Datoer for studieregistrering
Først innsendt
19. januar 2012
Først innsendt som oppfylte QC-kriteriene
19. januar 2012
Først lagt ut (Anslag)
24. januar 2012
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
25. juni 2014
Siste oppdatering sendt inn som oppfylte QC-kriteriene
24. juni 2014
Sist bekreftet
1. juni 2014
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- CR100779
- 212082PCR1004 (Annen identifikator: Janssen Research & Development, LLC)
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. .
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