Denna sida har översatts automatiskt och översättningens korrekthet kan inte garanteras. Vänligen se engelsk version för en källtext.

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.

Studieöversikt

Status

Avslutad

Betingelser

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Faktisk)

16

Fas

  • Fas 1

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

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

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 45 år (Vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Dubbel

Vapen och interventioner

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

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
TEAEs
Tidsram: day 1 to day 14
Frequency of treatment-emergent adverse events
day 1 to day 14

Sekundära resultatmått

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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 mars 2012

Primärt slutförande (Faktisk)

1 augusti 2012

Avslutad studie (Faktisk)

1 augusti 2012

Studieregistreringsdatum

Först inskickad

31 maj 2017

Först inskickad som uppfyllde QC-kriterierna

7 juni 2017

Första postat (Faktisk)

8 juni 2017

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

8 juni 2017

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

7 juni 2017

Senast verifierad

1 maj 2017

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

Kliniska prövningar på Kronisk hepatit B

Kliniska prövningar på PNA

Prenumerera