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The Tolerability and Pharmacokinetics Clinical Trial of Metacavir Enteric-coated Capsules in Healthy Adult Volunteers

Conduct in Chinese healthy adult subjects:1.To observe the safety and tolerability of multiple-dose oral administration of different doses of PNA;2.By measuring the changing drug concentration in the plasma and urine after a single oral administration of different doses of PNA on the condition of fasting, the pharmacokinetic parameters of the single dose are estimated;3.By measuring the changing drug concentration in the plasma of PNA after a multiple-dose oral administration on the condition of fasting, the pharmacokinetic parameters of multiple-dose are estimated, and a basis for dosage regimens of the clinical research phase Ⅱ is provided;4.To study the effects of diet on the pharmacokinetic parameters via the changes of concentration of PNA in plasma after high-fat and high-calorie food.

Studieoversikt

Status

Fullført

Detaljert beskrivelse

The study is divided into three parts:

  1. The tolerance test of randomized,double-blind, placebo-controlled multiple-dose oral administrations.2 dosage groups are set up.Each group contains 8 subjects,evenly composed of men and women.The beginning dosage of the study is 160mg/L.Subjects who have successfully completed tests of the beginning dosage group and passed the safety assessment will enter the test of next dosage group(320mg/L) according to the same method.
  2. Pharmacokinetic tests(single/multiple dose) .(1)Single dosing pharmacokinetic tests.36 eligible healthy subjects are selected. Each group has 12 people, evenly composed of men and women. After taking 80mg/160mg/320mg of PNA orally in fasting state, blood and urine samples are taken to be tested and analyzed, in order to study the pharmacokinetic characteristics of single-dose administrations.(2)Multiple dosing pharmacokinetic tests.In the single-dose administration trial, respectively choose 10 subjects (evenly composed of men and women) in middle and high-dose group (160mg qd、320mg qd).After the single-dose administration,inspecte the pharmacokinetic characteristics with 6-day continuous administration. Blood samples are taken to test the trough drug concentration of pre-dose in the morning of the 3rd, 4th, 5th day after administration, and the 6th morning before and after the administration, to study the steady state concentration and the fluctuation coefficient of the trough to peak drug concentration after multiple-dose, and to find out whether there exists the effect of drug storage and / or induction of drug enzyme.
  3. The effect of diet.Choose 12 qualified healthy subjects (normally evenly composed of men and women), a randomized two-way cross-over design is used, respectively orally take 160 mg of PNA before and after meal, and to study the effect of diet on pharmacokinetic via blood collection.

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

    • Jiangsu
      • Nanjing, Jiangsu, Kina
        • Nanjing First Hospital

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 45 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Healthy volunteers aged 18 to 45 years old ;
  2. Body mass index (BMI) above/equal 19 and below 24 kg/m2;
  3. Child bearing potential, has a negative serum pregnancy test at screening period, and agrees to use contraceptions consistently and correctly in 14 days after dosing;
  4. Subjects with no cardiovascular, liver, kidney, digestive tract, nervous and mental and other acute or chronic diseases that may affect the safety and pharmacokinetic of drug;
  5. Signed informed consent voluntarily.

Exclusion Criteria:

  1. Subjects not meet the inclusion criteria;
  2. Abnormal clinically significant laboratory results;
  3. Abnormal clinically significant electrocardiogram (ECG);
  4. A positive hepatitis B surface antigen, hepatitis C or HIV test result;
  5. History of hypersensitivity or allergy to any of the study drugs or to drugs of similar chemical classes;
  6. Addicted to smoking and drinking;
  7. Drink in 36 hours before post-dosing of study drug;
  8. Ingest any foods or beverages which may affect pharmacokinetics;
  9. Drug abuse,a history of poisoning;
  10. Subjects who had received other medications within 2 weeks prior to the first administration of Investigational Product,and the original and main metabolites were not completely eliminated ;
  11. Subjects who participated in any other clinical trials within 3 months prior to the first administration of Investigational Product;
  12. Subjects who had suffered from hemorrhage or blood donation over 200ml will be excluded;
  13. Subjects over exercised accompanied with fatigue and muscle aches within 1 week period to the first administration of Investigational Product;
  14. Children,women who are pregnant,lactating,with childbearing potential and who are using acyeterions;
  15. Subjects in the opinion of the investigator, could not participate in 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: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: PNA 1
Multiple dosing tolerance test:Metacavir Enteric-coated Capsules 160mg/320mg,once a day,continuous administration for 7 days;
Andre navn:
  • Metacavir Enteric-coated Capsules
Placebo komparator: PNA placebo
Multiple dosing tolerance test:Metacavir Enteric-coated Capsules placebo 160mg/320mg,once a day,continuous administration for 7 days
Andre navn:
  • Metacavir Enteric-coated Capsules placebo
Eksperimentell: PNA 2
Single dosing pharmacokinetic test:Metacavir Enteric-coated Capsules 80mg/160mg/320mg,single-dose;
Andre navn:
  • Metacavir Enteric-coated Capsules
Eksperimentell: PNA 3
Multiple dosing pharmacokinetic test:Metacavir Enteric-coated Capsules 160mg/320mg,once a day,continuous administration for 6 days;
Andre navn:
  • Metacavir Enteric-coated Capsules
Eksperimentell: PNA 4
The effect of diet:Metacavir Enteric-coated Capsules 160mg,before and after meal.
Andre navn:
  • Metacavir Enteric-coated Capsules

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
TEAEs
Tidsramme: day 1 to day 14
Frequency of treatment-emergent adverse events
day 1 to day 14

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
AUC
Tidsramme: day 1 to day 7
Area under the plasma concentration versus time curve of PNA
day 1 to day 7
Cmax
Tidsramme: day 1 to day 7
Maximum Plasma Concentration of PNA
day 1 to day 7
T1/2
Tidsramme: day 1 to day 7
The time required while plasma concentration is reduced by half of PNA
day 1 to day 7

Samarbeidspartnere og etterforskere

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

Etterforskere

  • Hovedetterforsker: Hongwei Fan, The First Affiliated Hospital with Nanjing Medical University
  • Hovedetterforsker: Ruifang Wang, The First Affiliated Hospital with Nanjing Medical University

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. mars 2012

Primær fullføring (Faktiske)

1. august 2012

Studiet fullført (Faktiske)

1. august 2012

Datoer for studieregistrering

Først innsendt

31. mai 2017

Først innsendt som oppfylte QC-kriteriene

7. juni 2017

Først lagt ut (Faktiske)

8. juni 2017

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juni 2017

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. juni 2017

Sist bekreftet

1. mai 2017

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

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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