ClinicalTrials.gg
CompletedNCT03471988Updated May 14, 2021

Clinical Study of AK1820 (Isavuconazonium Sulfate) for the Treatment of Deep Mycosis

A Phase 3 interventional study of AK1820 and Voriconazole in Deep Mycosis, sponsored by Asahi Kasei Pharma Corporation. Completed at 33 sites in Japan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2021-05-14.

Sponsored by Asahi Kasei Pharma Corporation · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
103
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

The objective of this study is to investigate the safety and efficacy of administering 372.6 mg of AK1820 (isavuconazonium sulfate) intravenously or orally to adult Japanese patients with deep mycosis. The primary endpoint is safety (percentage of patients with adverse events after starting the study treatment).

02

Conditions studied

  • Deep Mycosis

Keywords

  • deep mycosis
  • aspergillosis
  • mucormycosis
  • cryptococcosis
  • isavuconazonium sulfate
  • isavuconazole
  • AK1820
  • Cresemba
03

In context

Aspergillosis

134 studies on the registry are indexed under Aspergillosis; 10 are open to participants now.

This study's enrollment of 103 is above the median of 47 across 75 interventional studies indexed under Aspergillosis.

Browse Aspergillosis studies →

Lead sponsor

Asahi Kasei Pharma Corporation is the lead sponsor of 14 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Main Inclusion Criteria:

  • Patients must have the below proven, probable or possible deep mycosis;

    1. invasive aspergillosis
    2. chronic pulmonary aspergillosis
    3. mucormycosis
    4. cryptococcosis
  • Female patients must be non-lactating and at no risk for pregnancy.

Main Exclusion Criteria:

  • Women who are pregnant or breastfeeding.
  • Patients with to any of the components of the azole class of antifungals or the product.
  • Patients at high risk for /QTc prolongation, or patients with risk factors for torsades de pointes, or taking concomitant medications known to prolong the QT/QTc interval.
  • Patients with a history of short QT syndrome.
  • Patients with liver dysfunction at enrollment.
  • Patients with moderate to severe kidney dysfunction at enrollment.
  • Patients who receive prohibited concomitant drugs.
  • Patients with any other fungal infection other than Aspergillus species, order Mucorales, or Cryptococcus species.
  • Patients who are not expected to survive study duration.
  • Patients with an underlying disease, complication or general condition that would complicate safety and efficacy evaluations.
  • Patients with a history of taking voriconazole for deep mycosis and showing no response to this treatment.
  • Patients taking systemic antifungals who are unable to stop taking these drugs during the study, or who are showing signs of improvement in their symptoms of deep mycosis as a result of these drugs.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
103 participants (actual)

Study arms

  • Experimental
    AK1820

    Participants will receive a loading dose of isavuconazole, 200 mg three times a day by intravenous infusion (IV) or orally for the first 2 days followed by a maintenance dose from Day 3 of 200 mg once daily either IV or orally until they will reach a treatment endpoint or for a maximum of 84 days.

    Drug: AK1820

  • Active comparator
    Voriconazole

    Participants will receive a loading dose of voriconazole, 6 mg/kg every 12 hours IV or 300 mg every 12 hours orally for the first 24 hours, followed by a maintenance dose from Day 2 of 4 mg/kg every 12 hours by IV or 200 mg every 12 hours orally, until they will reach a treatment endpoint or for a maximum of 84 days.

    Drug: Voriconazole

Interventions

  • DrugAK1820

    Only a switch from IV infusion (vial) to oral administration (capsule) will be permitted; a switch from oral administration to IV infusion will not be possible. 372.6 mg of AK1820 (isavuconazonium sulfate) is equivalent to 200 mg of isavuconazole. Other Names: Cresemba, BAL8557

  • Only a switch from IV infusion (vial) to oral administration (tablet) will be permitted; a switch from oral administration to IV infusion will not be possible. Other Name : VFend

06

What researchers measure

Primary outcomes

  1. Percentage of patients with adverse events between the first administration of investigational product and the end of Follow-up.

    Time frame: From the first study drug administration until 28 days after the last dose of study drug (up to approximately Day 112).

Secondary outcomes

  1. Percentage of participants with an overall outcome of success evaluated by the data review committee (DRC).

    Time frame: Day 42, Day 84 and End of Treatment* (maximum Day 84).*End of treatment (EOT) is defined as the last day of study drug treatment.

  2. Percentage of participants with clinical, radiological and mycological response assessed by the DRC.

    Time frame: Day 42, Day 84 and End of Treatment* (maximum Day 84).*End of treatment (EOT) is defined as the last day of study drug treatment.

  3. Percentage of participants with overall outcome, clinical, radiological and mycological response evaluated by investigator.

    Time frame: Day 42, Day 84 and End of Treatment* (maximum Day 84).*End of treatment (EOT) is defined as the last day of study drug treatment.

  4. All-cause mortality.

    Time frame: Through 28 days after the last dose of study drug (up to approximately Day 112).

07

Study locations

33 sites
  • Research site
    Nagakute, Aichi, Japan
  • Research site
    Nagoya, Aichi, Japan
  • Research site
    Seto, Aichi, Japan
  • Research site
    Higashi-Ku, Fukuoka, Japan
  • Research site
    Minami-Ku, Fukuoka, Japan
  • Research site
    Nagara, Gifu, Japan
  • Research site
    Naka-Ku, Hiroshima, Japan
  • Research site
    Asahikawa, Hokkaido, Japan
  • Research site
    Kawasaki, Kanagawa, Japan
  • Research site
    Yokohama, Kanagawa, Japan
  • Research site
    Chuo-Ku, Kumamoto, Japan
  • Research site
    Tsu, Mie, Japan
  • Research site
    Isahaya, Nagasaki, Japan
  • Research site
    Sasebo, Nagasaki, Japan
  • Research site
    Ōmura, Nagasaki, Japan
  • Research site
    Tenri, Nara, Japan
  • Research site
    Yufu, Oita, Japan
  • Research site
    Kurashiki, Okayama, Japan
  • Research site
    Nakagami, Okinawa, Japan
  • Research site
    Abeno-Ku, Osaka, Japan
  • Research site
    Sakai, Osaka, Japan
  • Research site
    Ōmiya, Saitama, Japan
  • Research site
    Hamamatsu, Shizuoka, Japan
  • Research site
    Shimotsuke, Tochigi, Japan
  • Research site
    Kiyose, Tokyo, Japan
  • Research site
    Minato-Ku, Tokyo, Japan
  • Research site
    Mitaka, Tokyo, Japan
  • Research site
    Ota-Ku, Tokyo, Japan
  • Research site
    Shinagawa-Ku, Tokyo, Japan
  • Research site
    Shinjuku-Ku, Tokyo, Japan
  • Research site
    Chiba, Japan
  • Research site
    Ibaraki, Japan
  • Research site
    Nagasaki, Japan
08

References and documents

Publications

  • Kohno S, Izumikawa K, Takazono T, Miyazaki T, Yoshida M, Kamei K, Ogawa K, Taniguchi S, Akashi K, Tateda K, Mukae H, Miyazaki Y, Okada F, Kanda Y, Kakeya H, Suzuki J, Kimura SI, Kishida M, Matsuda M, Niki Y. Efficacy and safety of isavuconazole against deep-seated mycoses: A phase 3, randomized, open-label study in Japan. J Infect Chemother. 2023 Feb;29(2):163-170. doi: 10.1016/j.jiac.2022.10.010. Epub 2022 Oct 25. PubMed 36307059 ↗
  • Shirae S, Ose A, Kumagai Y. Pharmacokinetics, Safety, and Tolerability of Single and Multiple Doses of Isavuconazonium Sulfate in Healthy Adult Japanese Subjects. Clin Pharmacol Drug Dev. 2022 Jun;11(6):744-753. doi: 10.1002/cpdd.1079. Epub 2022 Feb 21. PubMed 35191210 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2018 to primary completion in Apr 2021, 36 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 26, 2018
First posted
Mar 21, 2018
StartActual
Apr 16, 2018
Primary completionActual
Apr 21, 2021
CompletionActual
Apr 21, 2021
Last update
May 14, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 14, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03471988
Lead sponsor
Asahi Kasei Pharma Corporation
Responsible party
Sponsor
First posted
Mar 21, 2018
Start date
Apr 16, 2018
Primary completion
Apr 21, 2021
Completion
Apr 21, 2021
Last update
May 14, 2021

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Isavuconazole

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