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A Study of Caspofungin (MK-0991) in Japanese Children and Adolescents With Documented Candida or Aspergillus Infections (MK-0991-074)

Phase 2
Completed
Conditions
Aspergillosis
Candidiasis, Invasive
Candidiasis, Esophageal
Interventions
Registration Number
NCT01165320
Lead Sponsor
Merck Sharp & Dohme LLC
Brief Summary

The study estimates the safety, efficacy, and pharmacokinetics of caspofungin (MK-0991) in Japanese children and adolescents with documented Candida or Aspergillus infections.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
20
Inclusion Criteria
  • Japanese patients in whom a causative fungus is detected before treatment with the study drug or patients with strongly suspected deep-seated fungal infection due to Candida species (spp.) or Aspergillus spp.
Exclusion Criteria
  • Patients with mycoses other than ones due to Candida spp. or Aspergillus spp.
  • Patients who will receive other systemic antifungal agents for the first time in screening period

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Participants with Esophageal CandidiasisCaspofunginCandida infection is strongly suspected based on clinical symptoms and the participant's clinical course, white moss (plaque) is observed on the esophageal mucosa, and therapy via intravenous infusion is judged to be suitable for the present episode of esophageal candidiasis. MK-0991 therapy as a single loading dose of 70 mg/m\^2 intravenously on Day 1 (maximum not to exceed 70 mg), followed by 50 mg/m\^2 as a single once-daily dose on all subsequent days (maximum of 70 mg daily). The minimum and maximum treatment duration was 7 and 28 days, respectively.
Participants with Invasive CandidiasisCaspofunginCandida infection is strongly suspected based on the presence of refractory fever not responding to an antibiotic agent, or clinical symptoms at the site of disease, or the participant's clinical course. In addition, at least 1 of the following criteria must be met: 1) Candida infection is strongly suspected based on radiographic imaging findings and positive serological test for fungus, 2) yeast is observed by direct microscopy or histopathological test of tissue biopsied from the site of disease, or 3) Candida species are observed by culture test of specimens sampled from the site of disease. MK-0991 therapy as a single loading dose of 70 mg/m\^2 intravenously on Day 1 (maximum not to exceed 70 mg), followed by 50 mg/m\^2 as a single once-daily dose on all subsequent days (maximum of 70 mg daily). The minimum and maximum treatment duration was 14 and 56 days, respectively.
Participants with AspergillosisCaspofunginAspergillus infection is strongly suspected based on clinical symptoms and the participant's clinical course, and characteristic radiographic imaging findings are observed. In addition, at least 1 of the following criteria must be met: 1) risk factors predisposing to an Aspergillus infection, 2) positive serological test for Aspergillus, 3) acute-branching mold with separated hyphae are observed by direct microscopy or histopathological test, or 4) Aspergillus species are observed by culture test. MK-0991 therapy as a single loading dose of 70 mg/m\^2 intravenously on Day 1 (maximum not to exceed 70 mg), followed by 50 mg/m\^2 as a single once-daily dose on all subsequent days (maximum of 70 mg daily). The minimum and maximum treatment duration was 14 and 84 days, respectively.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With One or More Drug-Related Adverse ExperiencesInvasive candidiasis: up to 70 days; aspergillosis: up to 98 days

An adverse experience (AE) is defined as any unfavorable or unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug. Any worsening of a preexisting condition which is temporally associated with the use of the study drug is also an AE. A drug-related AE is one judged to be definitely, probably, or possibly related to the study drug.

Percentage of Participants With an Overall Favorable Response to TherapyInvasive candidiasis: up to 56 days; aspergillosis: up to 84 days

Invasive candidiasis: favorable overall response required resolved clinical findings and negative culture test for Candida species on follow-up. If Candida species were not observed in the baseline blood culture, favorable overall response required resolved clinical findings and resolved or improved radiographic findings. Aspergillosis: favorable overall response required resolved, improved, or unchanged clinical findings and resolved or improved radiographic findings, or resolved or improved clinical findings and resolved, improved, or stable radiographic findings.

Secondary Outcome Measures
NameTimeMethod
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