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Study of CMX001 to Prevent/Control Cytomegalovirus Infection in R+ Hematopoietic Stem Cell Transplant Recipients

28 de junho de 2021 atualizado por: Chimerix

A Multicenter, Randomized, Double-blind, Placebo-controlled, Dose-escalation Study of the Safety, Tolerability and Ability of CMX001 to Prevent or Control CMV Infection in R+ Hematopoietic Stem Cell Transplant Recipients

This was a multicenter, randomized, double-blind, placebo-controlled, dose-escalation study of brincidofovir (BCV) administered orally once or twice weekly for up to 11 weeks. Dosing was initiated immediately following engraftment (between Days 14-30 post-transplant) to prevent/control cytomegalovirus (CMV) infection or prevent disease in R+ hematopoietic stem cell transplant (HCT) recipients.

Visão geral do estudo

Status

Concluído

Condições

Intervenção / Tratamento

Descrição detalhada

This was to be a 2-part study. Part 1 was a randomized, double-blind, placebo-controlled, dose-escalation study of multiple doses of oral brincidofovir (BCV) in R+ hematopoietic stem cell transplant (HCT) recipients. In Part 2, one of the dose levels administered in Part 1 was to be tested against placebo to evaluate the statistical significance of BCV as a therapy for preventing progression of cytomegalovirus (CMV) infection or preventing CMV disease. The first 3 dose-escalating cohorts in Part 1 were to include 32 subjects within each cohort (24 randomized to receive oral BCV and 8 randomized to receive placebo in a 3:1 ratio) for a total of 96 planned subjects. Following completion of the first 3 cohorts and subsequent safety review of the data, up to an additional 3 cohorts of 32 subjects each could have been enrolled. Two additional cohorts (labeled Cohort 4 and Cohort 4A) beyond the initial 3 cohorts were actually enrolled in Part 1 of the study. Following the safety and antiviral activity analyses of the 5 cohorts in Part 1 and the number of subjects enrolled in each of those cohorts, Part 2 of the study was not conducted.

Tipo de estudo

Intervencional

Inscrição (Real)

239

Estágio

  • Fase 2

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

  • Estados Unidos
    • Alabama
      • Birmingham, Alabama, Estados Unidos, 35294
        • The University of Alabama at Birmingham
    • California
      • La Jolla, California, Estados Unidos, 92093
        • Moores UCSD Cancer Center
      • Los Angeles, California, Estados Unidos, 90095
        • UCLA Medical Center
    • Colorado
      • Aurora, Colorado, Estados Unidos, 80045
        • University of Colorado Denver
    • Georgia
      • Atlanta, Georgia, Estados Unidos, 30322
        • Winship Cancer Institute at Emory University
    • Illinois
      • Chicago, Illinois, Estados Unidos, 60637
        • University Of Chicago Medical Center
    • Massachusetts
      • Boston, Massachusetts, Estados Unidos, 02115
        • Brigham and Womens Hospital, Division of Infectious Disease
    • Michigan
      • Ann Arbor, Michigan, Estados Unidos, 48109
        • University of Michigan Medical School
      • Detroit, Michigan, Estados Unidos, 48201
        • Harper University Hospital
    • Minnesota
      • Minneapolis, Minnesota, Estados Unidos, 55455
        • University of Minnesota Medical Center
    • Nebraska
      • Omaha, Nebraska, Estados Unidos, 68198-5130
        • Nebraska Medical Center
    • New Jersey
      • Hackensack, New Jersey, Estados Unidos, 07601
        • Hackensack University Medical Center
    • New York
      • Bronx, New York, Estados Unidos, 10467
        • Montefiore Medical Center Oncology
      • New York, New York, Estados Unidos, 10065
        • Memorial Sloan Kettering Cancer Center
      • New York, New York, Estados Unidos, 10029
        • Mt. Sinai School of Medicine
      • Rochester, New York, Estados Unidos, 14642
        • University of Rochester Medical Center
    • North Carolina
      • Chapel Hill, North Carolina, Estados Unidos, 27599
        • UNC Health Care Center
      • Durham, North Carolina, Estados Unidos, 27710
        • Duke University Medical Center
      • Winston-Salem, North Carolina, Estados Unidos, 27517
        • Wake Forest University School of Medicine
    • Ohio
      • Cleveland, Ohio, Estados Unidos, 44195
        • The Cleveland Clinic
    • Oregon
      • Portland, Oregon, Estados Unidos, 97239
        • Oregon Health and Science University
    • Texas
      • Dallas, Texas, Estados Unidos, 75246
        • Baylor University Medical Center
      • Dallas, Texas, Estados Unidos, 75390-8565
        • UT Southwestern Medical Center at Dallas
      • Houston, Texas, Estados Unidos, 77030
        • University of Texas, MD Anderson Cancer Center
    • Utah
      • Salt Lake City, Utah, Estados Unidos, 84088
        • Utah Cancer Specialists - Intermountain Healthcare
    • Washington
      • Seattle, Washington, Estados Unidos, 98109
        • Fred Hutchinson Cancer Research Center

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria

For inclusion into the study, all prospective subjects were required to fulfill all of the following criteria (as applicable):

  1. Were aged ≥18 years. Males must have been able and willing to use adequate contraceptive methods throughout the treatment and follow-up phases of the study.
  2. Were cytomegalovirus (CMV) seropositive before allogeneic hematopoietic stem cell transplantation (HCT) (i.e., R+ subjects).
  3. Were less than 30 days post qualifying transplant.
  4. Had evidence of engraftment before randomization and receiving their first dose of study drug.
  5. Were able to ingest and absorb oral medication (in the judgment of the investigator and based on lack of significant gastrointestinal [GI] events).
  6. Were willing and able to understand and provide written informed consent.
  7. To the best of his or her knowledge, were willing and able to participate in all required study activities for the duration of the study.

Exclusion Criteria

Subjects meeting any of the following exclusion criteria were to be excluded from participation in the study:

  1. Females who were pregnant or currently nursing.
  2. Had a body mass index >35 kg/m2. [Note: This criterion was removed per Protocol Amendment 2 dated 27 August 2010.]
  3. Had hypersensitivity to cidofovir (CDV) or brincidofovir.
  4. Recipients for whom the current, predose clinical course of CMV infection suggested that the investigator would not be able to withhold treatment for CMV for a minimum of 5, but preferably 7 days following the subject's first dose of study drug.

  5. Received any of the following:

    • Ganciclovir, valganciclovir, foscarnet or CDV within 14 days prior to enrollment;
    • Any anti-CMV therapy following transplantation (including Cytogam®1);
    • Any CMV vaccine;
    • Any investigational drug with antiviral activity against double-stranded DNA (dsDNA) viruses within 14 days prior to enrollment. [Note: An investigational drug was defined as a drug that was not approved for any indication by the Food and Drug Administration.]; or
    • Any other investigational drug (i.e., those without any "anti-dsDNA virus" activity; e.g., anti-influenza compounds) within 14 days prior to enrollment without the prior written consent of the medical monitor. The use of investigational drugs in certain circumstances was added per Protocol Amendment 1 dated 15 January 2010.
  6. Received high dose acyclovir (>2000 mg total oral daily dose or >5 mg/kg intravenously 3 times daily) or valacyclovir (Valtrex; >3000 mg total daily dose) at the time of dosing.
  7. Were diagnosed with active CMV disease within 6 months prior to enrollment; patients with CMV DNAemia requiring intervention with antiviral therapy at the time of enrollment.
  8. Were HIV positive; patients with active hepatitis C virus (HCV) or hepatitis B virus (HBV) infection as evidenced by plasma levels of HCV RNA or HBV DNA, respectively.
  9. Received another allogeneic HCT within the past 2 years, other than the qualifying HCT.
  10. Had renal insufficiency as evidenced by glomerular filtration rate (GFR) <30 mL/min.
  11. Had a current diagnosis of hypotony, uveitis, or retinitis or any intraocular pathology that would predispose the subject to any one of these conditions.
  12. Had hepatic dysfunction as evidenced by alanine aminotransferase or aspartate aminotransferase >5 x the upper limit of normal (ULN) or direct bilirubin >2.5 x the ULN.
  13. Had any of the following active autoimmune disorders: myasthenia gravis, Addison's disease, Wegener's granulomatosis, primary biliary cirrhosis, bullous pemphigoid, autoimmune hemolytic anemia, autoimmune hepatitis, multiple sclerosis, Goodpasture's syndrome, idiopathic thrombocytopenic purpura, lupus erythematosus, dermatomyositis, polymyositis, or vasculitis.
  14. Had active solid tumor malignancies with the exception of basal cell carcinoma or the condition under treatment (e.g., lymphomas).
  15. Had 1 or more episode of hyperglycemic coma or diabetic ketoacidosis within the 6 months prior to enrollment.
  16. Had cardiovascular disease which, in the opinion of the investigator, would interfere with the conduct of the study.
  17. Had Grade 3 or 4 graft versus host disease of the GI tract; subjects with any GI disease that would, in the judgment of the investigator, preclude the subject from taking or absorbing oral medication (e.g. clinically active Crohn's disease, ischemic colitis, moderate or severe ulcerative colitis, or any condition expected to require abdominal surgery during the course of study participation).
  18. Any other condition including abnormal laboratory values that would have, in the judgment of the investigator, put the subject at increased risk for participating in the trial, or interferes with the conduct of the trial.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Prevenção
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição sequencial
  • Mascaramento: Dobro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Comparador de Placebo: Placebo
  • Cohort 1 = 40 mg of matching placebo administered once weekly (QW)
  • Cohort 2 = 100 mg of matching placebo administered QW
  • Cohort 3 = 200 mg of matching placebo administered QW
  • Cohort 4 = 200 mg of matching placebo administered twice weekly (BIW)
  • Cohort 4A = 100 mg of matching placebo administered BIW
Medicamento: Placebo

Subjects received their first dose of study drug within 30 (+5) days post-transplant and were treated through Week 13 post-transplant.

Matching placebo administered for each cohort.
Experimental: Brincidofovir
  • Cohort 1 = 40 mg brincidofovir (BCV) administered once weekly (QW)
  • Cohort 2 = 100 mg BCV administered QW
  • Cohort 3 = 200 mg BCV administered QW
  • Cohort 4 = 200 mg BCV administered twice weekly (BIW)
  • Cohort 4A = 100 mg BCV administered BIW
Medicamento: Brincidofovir
Subjects received their first dose of study drug of brincidofovir (BCV) within 30 (+5) days post-transplant and were treated through Week 13 post-transplant.
Outros nomes:
  • BCV
  • CMX001

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Number of Participants With Clinically Significant CMV Infection
Prazo: Randomization to Week 8 post-treatment (~19 weeks)
The primary efficacy endpoint was a binomial outcome of failure to prevent cytomegalovirus (CMV) infection defined as CMV DNAemia >200 copies/mL obtained at the time of the last treatment with study drug or diagnosis of CMV disease at some point during the treatment phase.
Randomization to Week 8 post-treatment (~19 weeks)

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Chimerix

Publicações e links úteis

A pessoa responsável por inserir informações sobre o estudo fornece voluntariamente essas publicações. Estes podem ser sobre qualquer coisa relacionada ao estudo.

Publicações Gerais

Links úteis

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de outubro de 2009

Conclusão Primária (Real)

1 de janeiro de 2012

Conclusão do estudo (Real)

1 de janeiro de 2012

Datas de inscrição no estudo

Enviado pela primeira vez

17 de julho de 2009

Enviado pela primeira vez que atendeu aos critérios de CQ

17 de julho de 2009

Primeira postagem (Estimativa)

20 de julho de 2009

Atualizações de registro de estudo

Última Atualização Postada (Real)

16 de julho de 2021

Última atualização enviada que atendeu aos critérios de controle de qualidade

28 de junho de 2021

Última verificação

1 de junho de 2021

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • CMX001-201

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

Não

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Sim

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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