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A Study to Evaluate the Pharmacodynamic Effects of Single Oral Doses of PF-06648671 on β-Amyloid (Aβ) Concentrations in Cerebrospinal Fluid (CSF)

21. mars 2016 oppdatert av: Pfizer

A Phase 1 Investigator-and-subject Blind, Randomized, Placebo Controlled, Parallel Study In Healthy Subjects To Evaluate The Pharmacodynamic Effects Of Single Oral Doses Of Pf-06648671 On Aβ Concentrations In Cerebrospinal Fluid Using Serial Sampling Methodology

This is phase 1 investigator-and-subject blind, sponsor open, randomized, placebo controlled, parallel study in healthy subjects to evaluate the pharmacodynamics effect of single oral doses of PF-06648671 on CSF Aβ concentrations using serial CSF sampling methodology.

Studieoversikt

Status

Fullført

Forhold

Detaljert beskrivelse

This study is investigator-and-subject blind, sponsor open, randomized, placebo-controlled, parallel study in healthy subjects to evaluate central (CSF) and peripheral (plasma) pharmacodynamics effects (Abeta) over 36 hours post single doses of PF-06648671. Two cohorts will be run in sequential. the first cohort is to evaluate the Abeta effect at top dose of 300 mg PF-06648671 and second cohort is to evaluate the Abeta effect at top dose (if more subjects are required) and/or 1-2 lower doses

Studietype

Intervensjonell

Registrering (Faktiske)

22

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
      • Glendale, California, Forente stater, 91206
        • Glendale Adventist Medical Center
      • Glendale, California, Forente stater, 91206
        • California Clinical Trials Medical Group, Inc.

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 55 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Healthy male and/or female subjects of non childbearing potential
  • BMI of 17.5 to 30.5 kg/m2 and a total body weight >50 kg (110 lbs)
  • Evidence of a personally signed and dated informed consent document indicating that subject has been informed of all pertinent aspects of the study.

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated asymptomatic, seasonal allergies at the time of dosing)
  • Treatment with an investigational drug within 30 days (or as determined by the local requirement) or 5 half-lives preceding the first dose of study medication (whichever is longer)
  • Subjects with a history of significant active bleeding, coagulation disorder or clinically significant finding on prothrombin time/ partial thromboplastin time/International Normalized Ratio (PT/PTT/INR) at Screening
  • Subjects with lower spinal malformations (on physical examination), local spinal infection, or other abnormalities that would exclude puncture (LP)
  • Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the subject inappropriate for entry into this study

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: PF-06648671 High dose group
subjects receive a single oral dose of PF-06648671 at 300 mg
Experimental Pfizer compound which will be dosed as oral suspension, single dose at 300 mg and/or 1-2 lower doses
Eksperimentell: PF-06648671 Low dose group
Subjects receive a single oral dose of PF-06648671 lower than 300 mg dose
Experimental Pfizer compound which will be dosed as oral suspension, single dose at 300 mg and/or 1-2 lower doses
Placebo komparator: Placebo group
Subjects receive matching placebo
Placebo which will be dosed as oral suspension, single doses to match PF-06648671
Eksperimentell: PF-06648671 Low dose group (2)
Optional arm. Subjects receive a single oral dose of PF-06648671 at second lower dose if 300 mg dose is not repeated in cohort 2
Experimental Pfizer compound which will be dosed as oral suspension, single dose at 300 mg and/or 1-2 lower doses

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
CSF Aβ40 and Aβ42 concentration at maximum change from baseline
Tidsramme: 0-36 hours postdose
0-36 hours postdose

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Number of participants with AEs and SAEs
Tidsramme: 0-2 weeks
Counts of participants who have TEAEs, defined as newly occuring or worsening after first dose. Relatedness to PF-06648671 will be assessed by the investigator (Yes/No). Participants with multiple occurrence of an AE within a category will be counted once within the category
0-2 weeks
supine vital sign
Tidsramme: 0-2 weeks
Measurement of supine vital signs
0-2 weeks
Electrocardiogram (ECG)
Tidsramme: 0-2 weeks
Measurement of standard 12-lead ECG (single)
0-2 weeks
Maximum Observed Plasma Concentration (Cmax)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Area Under the Curve from Time Zero to Last Quantifiable Plasma Concentration (AUClast)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Area Under the Curve From Time Zero to Extrapolated Infinite Time in Plasma (AUCinf)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Plasma Decay Half-life (t1/2)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Apparent Oral Clearance (CL/F)
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Apparent Volume of Distribution (Vz/F))
Tidsramme: 0-72 hours postdose
0-72 hours postdose
Maximum Observed CSF Concentration (CSF Cmax)
Tidsramme: 0-36 hours postdose
0-36 hours postdose
Area Under the Curve from Time Zero to Last Quantifiable Concentration in CSF (CSF AUClast)
Tidsramme: 0-36 hours postdose
0-36 hours postdose
Area Under the Curve From Time Zero to Extrapolated Infinite Time in CSF (CSF AUCinf)
Tidsramme: 0-36 hours postdose
0-36 hours postdose
CSF Decay Half-life (CSF t1/2)
Tidsramme: 0-36 hours postdose
0-36 hours postdose
Plasma Aβ40, Aβ42 and Aβtotal
Tidsramme: 0-72 hours postdose
Plasma Aβ40, Aβ42 and Aβtotal if possible
0-72 hours postdose
CSF Aβ37, Aβ38 and Aβtotal Concentration
Tidsramme: 0-36 hours postdose
0-36 hours postdose
Number of participants with lab test values of potential clinical importance
Tidsramme: 0-2 weeks
Pre-defined criteria were established for each lab test to identify potential clinical importance
0-2 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

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. oktober 2015

Primær fullføring (Faktiske)

1. mars 2016

Studiet fullført (Faktiske)

1. mars 2016

Datoer for studieregistrering

Først innsendt

25. mars 2015

Først innsendt som oppfylte QC-kriteriene

30. mars 2015

Først lagt ut (Anslag)

2. april 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

22. mars 2016

Siste oppdatering sendt inn som oppfylte QC-kriteriene

21. mars 2016

Sist bekreftet

1. mars 2016

Mer informasjon

Begreper knyttet til denne studien

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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