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Phase 3 N=199 Randomized Quadruple-blind Treatment

Study of Rezafungin Compared to Caspofungin in Subjects With Candidemia and/or Invasive Candidiasis

Candidemia · Mycoses · Fungal Infection · Invasive Candidiases

Enrolled (actual)
199
Serious AEs
54.6%
Results posted
Jan 2023
Primary outcome: Primary: All-Cause Mortality (US FDA Only) — 19; 17; 3; 3 Participants

Study Design & Population

Study type
Interventional
Phase
Phase 3
Interventions
Rezafungin for Injection (Drug); Caspofungin (Drug); Fluconazole (Drug); intravenous placebo (Drug); oral placebo (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Primary completion
Oct 2021

Outcome Measures

OutcomeResultp-value
PRIMARY
All-Cause Mortality (US FDA Only)
19; 17; 3; 3; 71; 74
PRIMARY
Global Response as Assessed by Data Review Committee (EU European Medicines Agency [EMA] Only)
55; 57; 28; 29; 10; 8
SECONDARY
Global Response as Assessed by Data Review Committee (US FDA Only)
55; 57; 28; 29; 10; 8
SECONDARY
All-Cause Mortality (EU EMA Only)
19; 17; 3; 3; 71; 74
SECONDARY
Comparison of Global Response (as Assessed by the DRC) by Visit
52; 49; 32; 37; 9; 8
SECONDARY
Comparison of Mycological Eradication by Visit
64; 58; 25; 27; 4; 9
SECONDARY
Comparison of Investigators' Assessment of Clinical Response by Visit
59; 70; 31; 22; 3; 2
SECONDARY
Comparison of Radiological Response by Investigator by Visit
4; 6; 2; 2; 9; 9
SECONDARY
Number of Subjects With Treatment-Emergent Adverse Events [Safety and Tolerability]
89; 83; 68; 61; 16; 9
SECONDARY
Evaluate Pharmacokinetics (Cmax)
24.18
SECONDARY
Evaluate Pharmacokinetics (Cmin)
3.74
SECONDARY
Evaluate Pharmacokinetics (Cmin)
3.74
SECONDARY
Evaluate Pharmacokinetics (Cmin)
3.74

Summary

The purpose of this pivotal study is to determine if intravenous Rezafungin is efficacious and safe in the treatment of candidemia and/or invasive candidiasis when compared to caspofungin (followed by optional oral fluconazole).

Eligibility Criteria

Inclusion Criteria

  • Willing and able to provide written informed consent. If the subject is unable to consent for himself/herself, a legally acceptable representative must provide informed consent on his/her behalf.
  • Males or females ≥18 years of age.
  • Established mycological diagnosis of candidemia and/or invasive candidiasis from a sample taken ≤4 days (96 hours) before randomization defined as
  • ≥1 blood culture positive for yeast or Candida OR
  • Positive test for Candida from a Sponsor-approved rapid in vitro diagnostic (IVD) OR
  • Positive gram stain (or other method of direct microscopy) for yeast or positive culture for Candida spp. from a specimen obtained from a normally sterile site.
  • Presence of one or more systemic signs attributable to candidemia or invasive candidiasis appearing from ≤12 hours prior to the qualifying positive culture through time of randomization.
  • Willing to initiate or continue medical treatment to cure infections, including receipt of antibiotics and surgical procedures, if required.
  • Female subjects of childbearing potential (all female subjects between 18 years 48 hours (e.g., >2 doses of a once daily antifungal agent or >4 doses of a twice daily antifungal agent) ≤4 days (96 hours) before randomization

a. Exception: Receipt of antifungal therapy to which any Candida spp. isolated in culture is not susceptible

  • Alanine aminotransferase or aspartate aminotransferase levels >10-fold the upper limit of normal
  • Severe hepatic impairment in subjects with a history of chronic cirrhosis (Child-Pugh score >9)
  • Presence of an indwelling vascular catheter or device that cannot be removed or an abscess that cannot be drained and is likely to be the source of candidemia or invasive candidiasis
  • Known hypersensitivity to Rezafungin for Injection, caspofungin, any echinocandin, or to any of their excipients
  • Meets National Cancer Institute Common Terminology Criteria for Adverse Events, version 5, criteria for ataxia, tremor, motor neuropathy, or sensory neuropathy of Grade 2 or higher
  • History of severe ataxia, tremor, or neuropathy or a diagnosis of multiple sclerosis or a movement disorder (including Parkinson's Disease or Huntington's Disease)
  • Planned or ongoing therapy at Screening with a known neurotoxic medication
  • Previous participation in this or any previous rezafungin study
  • Current participation in another interventional treatment trial with an investigational agent
  • Recent use of an investigational medicinal product within 28 days of the first dose of study drug or presence of an investigational device at the time of screening.
  • Pregnant or lactating females
  • The Principal Investigator (PI) is of the opinion the subject should not participate in the study
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03667690). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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