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A Safety Study to Evaluate the Antiviral Activity of Darunavir in Combination With Ritonavir in HIV 1 Infected Children

3. april 2014 opdateret af: Tibotec Pharmaceuticals, Ireland

A Phase II, Open Label Trial, to Evaluate Pharmacokinetics, Safety, Tolerability and Antiviral Activity of DRV in Combination With Low-Dose Ritonavir (DRV/Rtv) in Treatment-Experienced HIV-1 Infected Children From 3 Years to Below 6 Years of Age

The purpose of this study is to evaluate the pharmacokinetics (what the body does to the medication), safety and antiviral activity to support dose recommendations by body weight of darunavir with low-dose ritonavir (DRV/rtv), in combination with other antiretroviral drugs (ARVs), in treatment-experienced Human immunodeficiency virus 1 (HIV 1) infected children.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is an open-label (all people know the identity of the intervention), study to evaluate the pharmacokinetics, safety and antiviral activity. Approximately 24 HIV-1 infected children will be enrolled in this study. The study consists of a 4-week screening period, a 48-week treatment period, and a 4-week follow-up period. Participants will receive DRV/rtv according to their body weight. Safety evaluations will include assessment of adverse events, laboratory tests, physical Examination, neurologic examination, vital signs, and electrocardiogram. The total duration of the study will be 56 weeks.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

27

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Argentina
      • Buenos Aires, Argentina
  • Brasilien
      • Rio De Janeiro, Brasilien
      • Sao Paulo, Brasilien
  • Indien
      • Chennai, Indien
  • Kenya
      • Kilifi, Kenya
  • Sydafrika
      • Durban, Sydafrika
      • Johannesburg, Sydafrika
      • Johannesburg Gauteng, Sydafrika

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

3 år til 6 år (Barn)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Participants with a documented HIV 1 infection (by any of the local standard diagnostic methods, such as HIV PCR-DNA, ELISA or western blot (WB) test for HIV antibodies, etc.)
  • Body weight from 10 kg to less than 20 kg at screening
  • Participants currently on stable ART (anti retroviral therapy) for at least 12 weeks, who need to change their ARV regimen because it is currently failing, with a viral load of greater than 1000 copies/mL
  • Screening genotype resistance test results showing less than 3 DRV resistance-associated mutations
  • Parents or legal representative willing and able to give consent

Exclusion Criteria:

  • Participants with presence of any currently active conditions included in the listing of WHO ( World Health Organisation) Clinical Stage 4 and participants with presence of a non-HIV encephalopathy
  • Administration of any ARV (antiretroviral) or non-ARV investigational medication or investigational vaccine within 30 days prior to screening, except for those medications where dose recommendations for children are available
  • Life expectancy less than 6 months, according to the judgment of the investigator
  • Co-enrollment in other clinical and/or cohort trials without written permission of the Sponsor
  • Participants with any active clinically significant disease (eg, tuberculosis [TB], cardiac dysfunction, pancreatitis, acute viral infections) or findings during screening of medical history or physical examination that, in the investigator's opinion, would compromise the subject's safety or outcome of the study

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Darunavir (DRV)+Ritonavir (rtv)
Before dose adjustment, oral darunavir suspension (100 mg/mL): 20 mg per kg body weight twice daily for children weighing between 10 and <20 kg. After dose adjustment, 25 mg per kg body weight twice daily if weight less than 15 kg, and fixed dose of 375 mg twice daily if weight more than or equal to 15 kg. Before dose adjustment, oral ritonavir solution (80 mg/mL): 3 mg per kg body weight twice daily and after dose adjustment fixed dose of 50 mg twice daily if weight more than or equal to 15 kg.
Medicin: Darunavir
Darunavir oral suspension (100 mg/mL) will be administered as 20 mg per kg body weight twice daily for children weighing between 10 and <20 kg before dose adjustment. Darunavir oral suspension will be administered 25 mg per kg body weight twice daily if weight less than 15 kg, and fixed dose of 375 mg darunavir tablets twice daily if weight more than or equal to 15 kg after dose adjustment.
Medicin: Ritonavir
Ritonavir oral solution (80 mg/mL) will be administered as 3 mg per kg body weight twice daily before dose adjustment and after dose adjustment fixed dose of 50 mg twice daily if weight more than or equal to 15 kg.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Participants With Virological Response (Viral Load Less Than 50 Copies/mL) at Week 24 - Time to Loss of Virologic Response (TLOVR)
Tidsramme: Week 24
The TLOVR algorithm was used to derive response, ie, response and loss of response needed to be confirmed at 2 consecutive visits and participants who permanently discontinued were considered nonresponders after discontinuation. Participants with intermittent missing viral load values were considered responders if the preceeding and succeeding visits indicated response. In all other cases, intermittent values were imputed with nonresponse. Resuppression after confirmed virologic failure was considered as failure in this algorithm.
Week 24

Sekundære resultatmål

Resultatmål
Tidsramme
Number of Participants With Virological Response (Viral Load Less Than 50 Copies/mL) at Week 48
Tidsramme: Week 48
Week 48
Number of Participants With Virological Response (Viral Load Less Than 400 Copies/mL) at Week 24 and Week 48
Tidsramme: Week 24 and Week 48
Week 24 and Week 48
Number of Participants With Less Than or Equal to 1 log10 Decrease in Plasma Viral Load at Week 24 and Week 48
Tidsramme: Week 24 and Week 48
Week 24 and Week 48
Mean Change From Baseline to Week 24 and Week 48 in Plasma log10 Viral Load
Tidsramme: Baseline, Week 24 and Week 48
Baseline, Week 24 and Week 48
Mean Change From Baseline to Week 24 and Week 48 in CD4+ Percentage
Tidsramme: Baseline, Week 24 and Week 48
Baseline, Week 24 and Week 48

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Tibotec Pharmaceuticals, Ireland

Samarbejdspartnere

Tibotec Pharmaceutical Limited

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. september 2009

Primær færdiggørelse (Faktiske)

1. august 2010

Studieafslutning (Faktiske)

1. februar 2011

Datoer for studieregistrering

Først indsendt

11. juni 2009

Først indsendt, der opfyldte QC-kriterier

11. juni 2009

Først opslået (Skøn)

12. juni 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

23. april 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. april 2014

Sidst verificeret

1. april 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CR012553
  • TMC114-TiDP29-C228 (Anden identifikator: Tibotec Pharmaceuticals, Ireland)

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Humant immundefektvirus 1

Kliniske forsøg med Darunavir

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Congo, DR of

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
Abonner