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Micafungin (Mycamine)

Astellas Pharma Inc · Phase 3 active Small molecule ✓ Verified May 2026

Micafungin (Mycamine) is a Echinocandin antifungal Small molecule drug developed by Astellas Pharma Inc. It is currently in Phase 3 development for Candidemia and acute disseminated candidiasis, Esophageal candidiasis, Prophylaxis of Candida infections in hematopoietic stem cell transplant recipients. Also known as: FK463, Mycamine.

Micafungin inhibits fungal cell wall synthesis by targeting 1,3-beta-D-glucan synthase, leading to fungal cell death.

Micafungin, also known as Mycamine, is a small molecule used to treat various fungal infections, including candidiasis and aspergillosis. It has been studied in clinical trials for its pharmacokinetics in overweight, obese, and extremely obese volunteers, as well as compared to other antifungal medications such as fluconazole and caspofungin acetate.

Likelihood of approval
60.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Anti-infectives pathway favourability +2.0pp
    Microbiological endpoints + non-inferiority designs raise approval rates above baseline.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameMicafungin (Mycamine)
Also known asFK463, Mycamine
SponsorAstellas Pharma Inc
Drug classEchinocandin antifungal
Target1,3-beta-D-glucan synthase
ModalitySmall molecule
Therapeutic areaInfectious Disease
PhasePhase 3

Mechanism of action

Micafungin is an echinocandin antifungal that selectively inhibits the enzyme 1,3-beta-D-glucan synthase in the fungal cell wall. This prevents the synthesis of beta-glucan, a critical structural component of the fungal cell wall, causing cell wall integrity to fail and resulting in fungal cell lysis and death. The mechanism is selective for fungi and has minimal effect on human cells.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

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Frequently asked questions about Micafungin (Mycamine)

What is Micafungin (Mycamine)?

Micafungin (Mycamine) is a Echinocandin antifungal drug developed by Astellas Pharma Inc, indicated for Candidemia and acute disseminated candidiasis, Esophageal candidiasis, Prophylaxis of Candida infections in hematopoietic stem cell transplant recipients.

How does Micafungin (Mycamine) work?

Micafungin inhibits fungal cell wall synthesis by targeting 1,3-beta-D-glucan synthase, leading to fungal cell death.

What is Micafungin (Mycamine) used for?

Micafungin (Mycamine) is indicated for Candidemia and acute disseminated candidiasis, Esophageal candidiasis, Prophylaxis of Candida infections in hematopoietic stem cell transplant recipients.

Who makes Micafungin (Mycamine)?

Micafungin (Mycamine) is developed by Astellas Pharma Inc (see full Astellas Pharma Inc pipeline at /company/astellas).

Is Micafungin (Mycamine) also known as anything else?

Micafungin (Mycamine) is also known as FK463, Mycamine.

What drug class is Micafungin (Mycamine) in?

Micafungin (Mycamine) belongs to the Echinocandin antifungal class. See all Echinocandin antifungal drugs at /class/echinocandin-antifungal.

What development phase is Micafungin (Mycamine) in?

Micafungin (Mycamine) is in Phase 3.

What are the side effects of Micafungin (Mycamine)?

Common side effects of Micafungin (Mycamine) include Phlebitis, Elevated liver enzymes, Headache, Nausea, Rash, Fever.

What does Micafungin (Mycamine) target?

Micafungin (Mycamine) targets 1,3-beta-D-glucan synthase and is a Echinocandin antifungal.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing