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NCT Number: NCT03241550

A Study of Intravenous and Oral Isavuconazonium Sulfate in Pediatric Patients

The purpose of the study is to evaluate the pharmacokinetics (PK), safety and tolerability of multiple doses of intravenous (IV) and oral isavuconazonium sulfate administered daily in pediatric patients. The PK data will be utilized to establish a pediatric population PK model of isavuconazole, the active moiety of isavuconazonium sulfate.

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Key information

Conditions

Hematological Malignancy Bacterial Infections and Mycoses Hematologic Diseases Hematologic Neoplasms Hemic and Lymphatic Diseases Infections Invasive Fungal Infections Mycoses Neoplasms Neoplasms by Site

Age range

1 year–17 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Miller Children's Hospital, Long Beach, California, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject has sufficient venous access to permit administration of study drug (for the IV cohorts), collection of pharmacokinetic samples and monitoring of safety laboratories.
  • Female subject must either:
  • Be of non-childbearing potential: Clearly premenarchal or documented surgically sterile
  • Or, if of childbearing potential: Agree not to try to become pregnant during the study and for 28 days after the final study drug administration; and have a negative urine or serum pregnancy test at screening; and, if heterosexually active, agree to consistently use 2 forms of highly effective birth control (at least one of which must be a barrier method) starting at screening and throughout the study and for 28 days after the final study drug administration.
  • Female subject who is of childbearing potential must agree not to breastfeed starting at screening and throughout the study and for 28 days after the final study drug administration.
  • Female subject who is of childbearing potential must not donate ova starting at screening and throughout the study and for 28 days after the final study drug administration.
  • Male subject who is of childbearing potential and their female spouse/partner who is of childbearing potential must be using highly effective contraception consisting of 2 forms of birth control (at least one of which must be a barrier method) starting at screening and continue throughout the study, and for 90 days after the final study drug administration.
  • Male subject who is of childbearing potential must not donate sperm starting at screening and throughout the study and, for 90 days after the final study drug administration.
  • Subject and subject's parent(s) or legal guardian agree that the subject will not participate in another interventional study while on treatment.
  • For oral cohorts: subject is able to swallow the oral capsule medication.

Exclusion criteria

  • Subject has familial short QT syndrome, is receiving medications that are known to shorten the QT interval, or has a clinically significant abnormal electrocardiogram (ECG).
  • Subject has evidence of hepatic dysfunction defined as:
  • Total bilirubin ≥ 3 times the upper limit of normal (ULN)
  • Alanine transaminase or aspartate transaminase ≥ 5 times the ULN
  • Known cirrhosis or chronic hepatic failure
  • Subject has used strong cytochrome P450 (CYP) 3A4 inhibitors or inducers such as ketoconazole, rifampin/rifampicin, long acting barbiturates, carbamazepine and St. John's wort in the 5 days prior to the first administration of study drug.
  • Subject has known history of allergy, hypersensitivity, or any serious reaction to any of the azole class antifungals.
  • Subject has any condition which makes the subject unsuitable for study participation.
  • Subject is unlikely to survive 30 days.
  • Subject has received investigational therapy, with the exception of oncology drug trials, within 28 days or 5 half-lives, whichever is longer, prior to screening.
  • For oral cohorts: The subject has gastrointestinal disease or has had a procedure that is expected to interfere with the oral absorption or tolerance of the study drug (e.g., functionally relevant gastrointestinal obstruction, mucositis/stomatitis, or frequent vomiting).
  • Subject previously dosed with isavuconazonium sulfate.

Treatment and study plan

isavuconazonium sulfate - intravenous

Drug

IV infusion

Other names: Cresemba®

isavuconazonium sulfate - oral

Drug

Oral

Other names: Cresemba®

Primary outcomes

  1. Pharmacokinetics (PK) of isavuconazole in plasma: Cmax at steady state

    Time frame: Up to 7 days

    Maximum concentration at steady state (Cmax) will be derived from the PK plasma samples collected.

  2. PK of isavuconazole in plasma: AUCtau

    Time frame: Up to 7 days

    Area under the concentration time curve from the time of dosing to the start of next dosing interval at multiple dose conditions (AUCtau) will be derived from the PK plasma samples collected.

  3. PK of isavuconazole in plasma: tmax

    Time frame: Up to 7 days

    Time of maximum concentration (tmax) will be derived from the PK plasma samples collected.

  4. PK of isavuconazole in plasma: Ctrough

    Time frame: Up to 28 days

    Concentration - trough level (Ctrough) will be derived from the PK plasma samples collected.

  5. PK of isavuconazole in plasma: CL

    Time frame: Up to 28 days

    Clearance (CL) will be model-derived.

  6. PK of isavuconazole in plasma: Vss

    Time frame: Up to 28 days

    Volume of distribution at steady state (Vss) will be model-derived.

  7. PK of isavuconazole in plasma: AUCss

    Time frame: Up to 28 days

    Area under the concentration-time curve at steady state (AUCss) will be model-derived.

  8. PK of isavuconazole in plasma: t 1/2

    Time frame: Up to 28 days

    Half-life (t1/2) will be model-derived.

  9. Safety assessed by nature, frequency and severity of Treatment Emergent Adverse Events (TEAEs)

    Time frame: Up to 58 days

    A TEAE is defined as an Adverse Event (AE) observed after starting administration of the study drug through follow-up. AEs will be coded using the Medical Dictionary for Regulatory Activities (MedDRA). Number of patients with TEAE's will be summarized.

  10. Number of patients with vital sign abnormalities and/or adverse events

    Time frame: Up to 28 days

    An abnormality identified during a medical test (e.g. vital signs) should be defined as an AE only if the abnormality meets 1 of the following criteria: induces clinical signs or symptoms; requires active intervention; requires interruption or discontinuation of study drug; or the abnormality or test value is clinically significant.

  11. Number of patients with laboratory value abnormalities and/or adverse events

    Time frame: Up to 28 days

    An abnormality identified during a medical test (e.g. laboratory parameter) should be defined as an AE only if the abnormality meets 1 of the following criteria: induces clinical signs or symptoms; requires active intervention; requires interruption or discontinuation of study drug; or the abnormality or test value is clinically significant.

  12. Safety assessed by routine 12- lead electrocardiogram (ECG)

    Time frame: Up to 28 days

    Standard 12-lead ECG recordings will be used for the purposes of safety assessment. A 12-lead, resting ECG is to be recorded. Patients should remain supine for at least 5 minutes prior to all ECGs being performed. The results (normal, abnormal not clinically significant, abnormal clinically significant) are to be recorded.

Sponsors and collaborators

Lead sponsor

Astellas Pharma Global Development, Inc.

Industry

Collaborators

  • Basilea Pharmaceutica International Ltd

Registry information

Official study title

A Phase 1, Open-label, Multicenter, Non-comparative Pharmacokinetics and Safety Study of Intravenous and Oral Isavuconazonium Sulfate in Pediatric Patients

Important dates

Study start
2017
Primary completion
2019
Study completion
2019
First posted
Aug 7, 2017
Registry last updated
Nov 19, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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