Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Bisphosphonate Therapy for HIV-Infected Adults With Decreased Bone Mineral Density

25. september 2008 opdateret af: National Institute of Allergy and Infectious Diseases (NIAID)

Bisphosphonate Therapy for HIV-Associated Osteopenia

Bisphosphonates are a type of drug used to prevent and treat bone loss. The purpose of this study is to determine if zoledronate, an investigational bisphosphonate, can improve bone mineral density (BMD) in HIV-infected adults.

Study hypothesis: Zoledronate will reduce bone resorption in HIV-infected persons with osteopenia.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Decreased BMD and bone loss is estimated to affect up to 67.5% of the HIV-infected population. HIV-associated bone loss may be a result of antiretroviral treatment (ART), but can also be caused by the infection itself. To date, treatment for this bone loss has not been established. Before prescribing drugs to treat bone loss, physicians must take into account patients' already demanding ART schedules and potential nonadherence. This study will evaluate the efficacy of a single IV dose of zoledronate, an investigational bisphosphonate, in treating HIV-associated bone loss.

This study will last 1 year. Participants will be randomly assigned to receive zoledronate or placebo at study entry; their assigned intervention will be given in a 20- to 30-minute infusion on an outpatient basis. There will be 7 study visits: at screening, study entry, Week 2, and Months 3, 6, 9, and 12. Blood collection will occur at all visits. Medical history, a physical exam, a dual-energy x-ray absorptiometry (DEXA) scan to measure bone density, and a nutrition evaluation will occur at selected visits.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

30

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • California
      • San Diego, California, Forenede Stater, 92103
        • University of California, San Diego

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

18 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • HIV-infected
  • On stable antiretroviral regimen for at least 3 months
  • Able to walk
  • Lumbar spine or total hip BMD T-score at least 1.5 SD and no more than 3.5 SD below the mean BMD
  • No prevalent fractures at entry OR 1 prevalent vertebral fracture that has been asymptomatic during the last 2 years prior to study entry
  • HIV viral load of less than 5000 copies/ml within the 2 months prior to study entry
  • CD4 count of more than 100 cells/mm3 within the 2 months prior to study entry
  • Willing to use acceptable forms of contraception during the study period and for 6 months after study completion. Participants who are female and postmenopausal will be required to take hormone replacement therapy during this study.

Exclusion Criteria:

  • Prior treatment with bisphosphonates or fluoride
  • Use of supraphysiologic systemic estrogen/androgen therapy or corticosteroid therapy within the 3 months prior to study entry. Participants who have taken hormone replacement therapy are not excluded.
  • Significant liver or kidney disease
  • Hemoglobin less than 8 g/dL
  • Serum calcium less than 8 mg/dL
  • Laboratory evidence of low levels of estrogens or androgens
  • Laboratory evidence of overactive parathyroid glands
  • History of thyroid, parathyroid, or other endocrinologic disorder known to affect bone
  • Current use of any therapy known to affect bone
  • Current or history of cancer or chemotherapy
  • Current or history of radiotherapy to the jaw
  • Current osteomyelitis of the jaw or ongoing dental infection
  • Recent tooth extraction or major dental procedure within 3 weeks of study entry
  • Pregnancy or breastfeeding

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: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 1
Participants will receive zoledronate at study entry; their assigned intervention will be given in a 20- to 30-minute infusion on an outpatient basis
Medicin: Zoledronate
Zoledronate infusion
Placebo komparator: 2
Participants will receive zoledronate placebo at study entry; their assigned intervention will be given in a 20- to 30-minute infusion on an outpatient basis
Medicin: Zoledronate placebo
Zoledronate placebo infusion

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Bone metabolic markers
Tidsramme: Throughout study
Throughout study

Sekundære resultatmål

Resultatmål
Tidsramme
Safety outcomes
Tidsramme: Throughout study
Throughout study

Samarbejdspartnere og efterforskere

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

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Efterforskere

  • Ledende efterforsker: Jeannie S. Huang, MD, MPH, University of California, San Diego

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. maj 2005

Primær færdiggørelse (Forventet)

1. oktober 2007

Studieafslutning (Forventet)

1. december 2009

Datoer for studieregistrering

Først indsendt

4. februar 2005

Først indsendt, der opfyldte QC-kriterier

4. februar 2005

Først opslået (Skøn)

7. februar 2005

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

26. september 2008

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

25. september 2008

Sidst verificeret

1. september 2008

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 1R21AI058756-01 (U.S. NIH-bevilling/kontrakt)

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 HIV-infektioner

Kliniske forsøg med Zoledronate

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Uzbekistan

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner