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A Pilot Study Of A Novel Treatment Regimen, Maraviroc + Ritonavir Boosted Atazanavir, In Treatment Naive HIV-Infected Patients

2012年6月8日 更新者:ViiV Healthcare

Pilot Study Of Novel Combination Of Maraviroc + Atazanavir/Ritonavir vs. Atazanavir/Ritonavir + Emtricitabine/Tenofovir For The Treatment Of Naïve HIV-Infected Patients With R5 HIV-1

This is a pilot study to examine if the novel treatment regimen maraviroc plus boosted atazanavir can be expected to be safe and efficacious in treatment naive HIV infected patients. Based on the results from this study, a confirmatory phase 3 study may be conducted.

調査の概要

研究の種類

介入

入学 (実際)

129

段階

  • フェーズ2

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • California
      • Los Angeles、California、アメリカ、90048
        • Pfizer Investigational Site
      • Los Angeles、California、アメリカ、90069
        • Pfizer Investigational Site
      • Los Angeles、California、アメリカ、90027
        • Pfizer Investigational Site
      • Los Angeles、California、アメリカ、90028
        • Pfizer Investigational Site
    • Connecticut
      • Norwalk、Connecticut、アメリカ、06851
        • Pfizer Investigational Site
    • District of Columbia
      • Washington、District of Columbia、アメリカ、20009
        • Pfizer Investigational Site
    • Florida
      • Miami、Florida、アメリカ、33136
        • Pfizer Investigational Site
      • Miami、Florida、アメリカ、33133
        • Pfizer Investigational Site
      • Miami、Florida、アメリカ、33137
        • Pfizer Investigational Site
      • Orlando、Florida、アメリカ、32803
        • Pfizer Investigational Site
      • Pensacola、Florida、アメリカ、32504
        • Pfizer Investigational Site
      • St. Petersburg、Florida、アメリカ、33713
        • Pfizer Investigational Site
      • Tampa、Florida、アメリカ、33602
        • Pfizer Investigational Site
      • Tampa、Florida、アメリカ、33614
        • Pfizer Investigational Site
    • Georgia
      • Atlanta、Georgia、アメリカ、30312
        • Pfizer Investigational Site
    • Illinois
      • Chicago、Illinois、アメリカ、60657
        • Pfizer Investigational Site
    • Massachusetts
      • Springfield、Massachusetts、アメリカ、01107
        • Pfizer Investigational Site
      • Springfield、Massachusetts、アメリカ、01199
        • Pfizer Investigational Site
    • Michigan
      • Ann Arbor、Michigan、アメリカ、48109
        • Pfizer Investigational Site
    • Nebraska
      • Omaha、Nebraska、アメリカ、68106
        • Pfizer Investigational Site
    • New York
      • New York、New York、アメリカ、10003
        • Pfizer Investigational Site
    • North Carolina
      • Huntersville、North Carolina、アメリカ、28078
        • Pfizer Investigational Site
    • Texas
      • Addison、Texas、アメリカ、75001
        • Pfizer Investigational Site
      • Dallas、Texas、アメリカ、75204
        • Pfizer Investigational Site
      • Dallas、Texas、アメリカ、75390
        • Pfizer Investigational Site
      • Houston、Texas、アメリカ、77098
        • Pfizer Investigational Site
    • Washington
      • Spokane、Washington、アメリカ、99204
        • Pfizer Investigational Site
      • Alicante、スペイン、03010
        • Pfizer Investigational Site
      • Barcelona、スペイン、08036
        • Pfizer Investigational Site
      • Cordoba、スペイン、14004
        • Pfizer Investigational Site
      • Madrid、スペイン、28046
        • Pfizer Investigational Site
      • Sevilla、スペイン、41013
        • Pfizer Investigational Site
    • Barcelona
      • L'hospitalet de Llobregat、Barcelona、スペイン、08907
        • Pfizer Investigational Site
      • Berlin、ドイツ、12157
        • Pfizer Investigational Site
      • Berlin、ドイツ、10243
        • Pfizer Investigational Site
      • Frankfurt am Main、ドイツ、60590
        • Pfizer Investigational Site
      • Hamburg、ドイツ、20146
        • Pfizer Investigational Site
      • Koeln、ドイツ、50937
        • Pfizer Investigational Site
      • Muenchen、ドイツ、80335
        • Pfizer Investigational Site

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

16年歳以上 (子、大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • HIV-1 RNA viral load of ≥1,000 copies/mL measured at the Screening Visit.
  • CD4 count ≥100 cells/mm3 at Screening.
  • Have only R5 HIV-1 at Screening as verified by the Monogram Bioscience Trofile® assay with enhanced sensitivity.

Exclusion Criteria:

  • Prior treatment with any other HIV antiretroviral therapy for more than 14 days at any time.
  • Any evidence of resistance to atazanavir, tenofovir, and emtricitabine.
  • X4-or dual/mixed-tropic virus by enhanced Trofile assay or repeated assay failure or not reportable results.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Arm A
maraviroc (Selzentry, Celsentri) 150 mg QD + atazanavir (Reyataz) /ritonavir (Norvir) 300/100mg QD Subjects experiencing unconjugated hyperbilirubinemia attributable to atazanavir (Reyataz) /ritonavir (Norvir) without any other etiology of hyperbilirubinemia, responding to the therapy without virologic failure, but expressing cosmetic concerns because of the jaundice or scleral icterus (associated with bilirubin elevations) and wish to discontinue atazanavir (Reyataz) in spite of reassurances by the investigator, will be permitted on a single occasion only to switch to another protease inhibitor either darunavir (Prezista)/ritonavir (Norvir)((800/100 mg) QD or lopinavir/ritonavir (Kaletra, Aluvia)(400/100mg) BID and remain in the study. If the investigator decides to switch to a protease inhibitor other than darunavir (Prezista)/ritonavir (Norvir) or lopinavir/ritonavir (Kaletra, Aluvia)(, then the subject must be discontinued from the study.
maraviroc (Selzentry, Celsentri) 150mg QD + atazanavir (Reyataz) /ritonavir (Norvir) (300/100mg) QD OR maraviroc (Selzentry, Celsentri) 150mg QD+ darunavir (Prezista)/ritonavir (Norvir) (800/100 mg) QD (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by darunavir (Prezista)/ritonavir (Norvir)) OR maraviroc (Selzentry, Celsentri) 150mg QD+ lopinavir/ritonavir (Kaletra, Aluvia) (400/100 mg) BID (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by lopinavir/ritonavir (Kaletra, Aluvia))
他の名前:
  • maraviroc =Celsentri, Selzentry; atazanavir =Reyataz; ritonavir =Norvir; lopinavir/ritonavir=Kaletra, Aluvia; darunavir=Prezista
emtricitabine/tenofovir (Truvada) 200/300mg QD + atazanavir (Reyataz) /ritonavir (Norvir) 300/100 mg QD OR emtricitabine/tenofovir (Truvada) 200/300 mg QD + darunavir (Prezista)/ritonavir (Norvir) (800/100 mg) QD (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by darunavir (Prezista)/ritonavir (Norvir)) OR emtricitabine/tenofovir (Truvada) 200/300 mg QD + lopinavir/ritonavir(Kaletra, Aluvia) (400/100 mg) BID (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by lopinavir/ritonavir (Kaletra, Aluvia))
他の名前:
  • maraviroc=Celsentri, Selzentry; emtricitabine/tenofovir=Truvada; atazanavir =Reyataz; ritonavir =Norvir; lopinavir/ritonavir=Kaletra, Aluvia
実験的:Arm B

emtricitabine/tenofovir (Truvada) 200/300mg QD + atazanavir (Reyataz) /ritonavir (Norvir) 300/100 mg QD

Subjects experiencing unconjugated hyperbilirubinemia attributable to atazanavir (Reyataz) /ritonavir (Norvir) without any other etiology of hyperbilirubinemia, responding to the therapy without virologic failure, but expressing cosmetic concerns because of the jaundice or scleral icterus (associated with bilirubin elevations) and wish to discontinue atazanavir in spite of reassurances by the investigator, will be permitted on a single occasion only to switch to another protease inhibitor either darunavir/ritonavir (800/100 mg) QD or lopinavir/ritonavir (400/100mg) BID and remain in the study. If the investigator decides to switch to a protease inhibitor other than darunavir/ritonavir or lopinavir/ritonavir, then the subject must be discontinued from the study.

maraviroc (Selzentry, Celsentri) 150mg QD + atazanavir (Reyataz) /ritonavir (Norvir) (300/100mg) QD OR maraviroc (Selzentry, Celsentri) 150mg QD+ darunavir (Prezista)/ritonavir (Norvir) (800/100 mg) QD (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by darunavir (Prezista)/ritonavir (Norvir)) OR maraviroc (Selzentry, Celsentri) 150mg QD+ lopinavir/ritonavir (Kaletra, Aluvia) (400/100 mg) BID (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by lopinavir/ritonavir (Kaletra, Aluvia))
他の名前:
  • maraviroc =Celsentri, Selzentry; atazanavir =Reyataz; ritonavir =Norvir; lopinavir/ritonavir=Kaletra, Aluvia; darunavir=Prezista
emtricitabine/tenofovir (Truvada) 200/300mg QD + atazanavir (Reyataz) /ritonavir (Norvir) 300/100 mg QD OR emtricitabine/tenofovir (Truvada) 200/300 mg QD + darunavir (Prezista)/ritonavir (Norvir) (800/100 mg) QD (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by darunavir (Prezista)/ritonavir (Norvir)) OR emtricitabine/tenofovir (Truvada) 200/300 mg QD + lopinavir/ritonavir(Kaletra, Aluvia) (400/100 mg) BID (if atazanavir (Reyataz) /ritonavir (Norvir) is replaced by lopinavir/ritonavir (Kaletra, Aluvia))
他の名前:
  • maraviroc=Celsentri, Selzentry; emtricitabine/tenofovir=Truvada; atazanavir =Reyataz; ritonavir =Norvir; lopinavir/ritonavir=Kaletra, Aluvia

この研究は何を測定していますか?

主要な結果の測定

結果測定
時間枠
Percentage of Participants With Plasma Human Immuno Deficiency Virus-1 Ribonucleic Acid (HIV-1 RNA) Levels Less Than 50 Copies/Milliliter (mL)
時間枠:Week 48
Week 48

二次結果の測定

結果測定
メジャーの説明
時間枠
HIV-1 RNA Levels at Baseline
時間枠:Baseline
Baseline
Change From Baseline in HIV-1 RNA Levels of First 15 Participants at Days 4, 7, 10 and 14
時間枠:Baseline , Days 4, 7, 10 and 14
Plasma HIV-1 RNA levels were evaluated for first 15 participants enrolled at United States (U.S) sites only.
Baseline , Days 4, 7, 10 and 14
Maximum Observed Plasma Concentration (Cmax) of Maraviroc
時間枠:Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Minimum Observed Plasma Concentration (Cmin) of Maraviroc
時間枠:Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Average Observed Plasma Concentration (Cavg) of Maraviroc
時間枠:Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Cavg was described as area under the plasma concentration-time profile from time zero to time 24 hours (AUC24) divided by the dosing interval (AUC24/ 24).
Day 14 (0, 0.5, 1, 2, 3, 4, 6, 8, 12 and 24 hours post dose)
Change From Baseline in Plasma log10 Viral Load at Weeks 16, 24, 48 and 96
時間枠:Baseline, Week 16, Week 24, Week 48, Week 96
Baseline, Week 16, Week 24, Week 48, Week 96
Percentage of Participants With Less Than 50 Copies/mL of HIV-1 RNA
時間枠:Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, Week 24, Week 32, Week 40, Week 48, Week 60, Week 72, Week 84, Week 96
Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, Week 24, Week 32, Week 40, Week 48, Week 60, Week 72, Week 84, Week 96
Percentage of Participants With Less Than 400 Copies/mL of HIV-1 RNA
時間枠:Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, Week 24, Week 32, Week 40, Week 48, Week 60, Week 72, Week 84, Week 96
Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, Week 24, Week 32, Week 40, Week 48, Week 60, Week 72, Week 84, Week 96
Time to Loss of Virological Response (TLOVR)
時間枠:Baseline through Week 96
TLOVR (virological failure) was defined as the time from first dose of study treatment (Day 1) until the time of virologic failure using the time to loss of virologic response algorithm.
Baseline through Week 96
Time-Averaged Difference (TAD) in log10 Viral Load
時間枠:Week 16, Week 24, Week 48, Week 96
TAD was calculated as area under the curve of HIV divided by time period minus baseline HIV where HIV was denoted as HIV-1 RNA (log10 copies/mL).
Week 16, Week 24, Week 48, Week 96
Change From Baseline in Cluster of Differentiation 4+T Lymphocyte (CD4) Cell Counts at Weeks 16, 24, 48 and 96
時間枠:Baseline, Week 16, Week 24, Week 48, Week 96
Baseline, Week 16, Week 24, Week 48, Week 96
Change From Baseline in Cluster of Differentiation 8+T Lymphocyte (CD8) Cell Count at Weeks 16, 24, 48 and 96
時間枠:Baseline, Week 16, Week 24, Week 48, Week 96
Baseline, Week 16, Week 24, Week 48, Week 96
Number of Participants With Genotypic Resistance
時間枠:Week 96 or Time of treatment failure
Genotypic resistance was assessed for all participants at screening and was evaluated for protease inhibitors (PIs), Nucleotide reverse transcriptase inhibitors (NRTIs), and non-NRTIs (NNRTIs) using Monogram GenoSeq and/or PhenoSenseGT assays. This was then repeated for all participants with HIV-1 viral load more than 500 copies/mL either at treatment failure or at early termination, up to Week 96.
Week 96 or Time of treatment failure
Number of Participants With Phenotypic Resistance
時間枠:Week 96 or Time of treatment failure
Phenotypic resistance was assessed for all participants at screening and was evaluated for PIs, NRTIs, and NNRTIs using Monogram GenoSeq and/or PhenoSenseGT assays. This was then repeated for all participants with HIV-1 viral load more than 500 copies/mL either at treatment failure or at early termination, up to Week 96.
Week 96 or Time of treatment failure
Number of Participants With HIV-1 RNA Tropism Status Using Trofile Assay
時間枠:Baseline to Week 96 or Time of treatment Failure
Viral tropism was determined using the trofile assay with enhanced sensitivity for participants with HIV-1 RNA greater than equal to 1000 copies/mL. The enhanced trofile assay had the sensitivity to detect 100 percent of spiked samples when C-X-C chemokine receptor type 4 {CXCR4} [X4]-using HIV-1 RNA represented 0.3 percent of the total viral population.
Baseline to Week 96 or Time of treatment Failure

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始

2009年3月1日

一次修了 (実際)

2010年7月1日

研究の完了 (実際)

2011年7月1日

試験登録日

最初に提出

2009年1月21日

QC基準を満たした最初の提出物

2009年1月21日

最初の投稿 (見積もり)

2009年1月22日

学習記録の更新

投稿された最後の更新 (見積もり)

2012年6月15日

QC基準を満たした最後の更新が送信されました

2012年6月8日

最終確認日

2012年6月1日

詳しくは

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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