A Phase 1, Multicentre, Open-Label Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of a Single IV Dose of Rezafungin Acetate in Paediatric Subjects from Birth to <18 Years of Age, Receiving Systemic Antifungals as Prophylaxis for Invasive Fungal Infection or to Treat a Suspected or Confirmed Fungal Infection

2022-501985-23-00 Protocol MR907-1501 Human pharmacology (Phase I) - Other Ended

Start 18 May 2023 · End 14 Oct 2024 · Status Ended · 2 EU/EEA countries · 6 sites · Protocol MR907-1501

Overview

Sponsor-declared trial summary

Phase Human pharmacology (Phase I) - Other
Status Ended
Participants planned 40
Countries 2
Sites 6

Fungal infections

To evaluate the pharmacokinetics (PK) of a single IV dose of rezafungin in paediatric subjects from birth to <18 years, receiving concomitant systemic antifungals as prophylaxis for invasive fungal infection (IFI) or to treat a suspected or confirmed fungal infection

Key facts

Sponsor
Mundipharma Research Limited, Mundipharma Research Limited
Participant type
Pediatric, Patients
Age range
0-17 years
Gender
Male and Female
Therapeutic area
Diseases [C] - Bacterial Infections and Mycoses [C01]
Trial duration
18 May 2023 → 14 Oct 2024
Decision date (initial)
2023-04-21
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
Yes
Funding sources
Mundipharma Research Ltd.

External identifiers

EU CT number
2022-501985-23-00
ClinicalTrials.gov
NCT05534529

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Pharmacokinetic, Safety

To evaluate the pharmacokinetics (PK) of a single IV dose of rezafungin in paediatric subjects from birth to <18 years, receiving concomitant systemic antifungals as prophylaxis for invasive fungal infection (IFI) or to treat a suspected or confirmed fungal infection

Secondary objectives 1

  1. To assess the safety and tolerability of a single IV dose of rezafungin in paediatric subjects from birth to <18 years, receiving concomitant systemic antifungals as prophylaxis for IFI or to treat a suspected or confirmed fungal infection

Conditions and MedDRA coding

Fungal infections

VersionLevelCodeTermSystem organ class
20.0 LLT 10017534 Fungal infection NOS 10021881

Study design 3 periods

#TitleAllocationBlindingRoles blindedArms
1 Part 1
Part 1 will include subjects aged 12 to <18 years (Group 1). Subjects in Group 1 (12 to <18 years) will be dosed first. PK sampling will be performed at the following 5 timepoints following administration of rezafungin. An interim review of safety and PK data will be conducted by the Data Safety Monitoring Board (DSMB) after completion of Group 1 to ensure that exposure achieved in the subjects from this group is safe and well tolerated. This will allow for a decision to proceed to Part 2
Not Applicable None Group 1: Group 1 (12 to <18 years): 8 subjects
2 Part 2
Part 2 will include subjects aged 6 to <12 years (Group 2), and subjects aged 2 to <6 years (Group 3). Enrolment for Group 2 and Group 3 will commence in parallel after safety has been confirmed by the DSMB. The PK sampling will be performed at the same 5 timepoints as that in Part 1 following administration of rezafungin A second interim review of safety and PK data will be performed when data from 50% of the subjects enrolled in Part 2 (Group 2 and Group 3) are available. The dose and PK sampling timepoints may be adjusted as appropriate after review of the PK and safety data (DSMB review 2). After completion of Groups 2 and 3; there will be another interim review (DSMB review 3) of the safety, tolerability, and PK data from the subjects in Groups 1, 2, and 3 (all subjects in Part 1 and Part 2).
Not Applicable None Group 2: Group 2 (6 to <12 years): 8 subjects
Group 3: Group 3 (2 to <6 years): 8 subjects
3 Part 3
Part 3 will include subjects from birth to <2 years of age (Group 4). Subjects from birth to <2 years of age (Group 4) will be enrolled after safety has been confirmed by the third DSMB review. PK sampling will be done at 3 timepoints following administration of rezafungin. The dose, PK sampling timepoints, extent of safety laboratory data required, and length of the Follow-up period may be adjusted as appropriate after review of the PK and safety data from Part 1 and Part 2 (DSMB review 3).
Not Applicable None Group 4: Group 4 (birth to <2 years): 8 subjects

Regulatory references

Scientific advice from competent authorities
European Medicines Agency
EMA paediatric investigation plan (PIP)
EMEA-002319-PIP01-17

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 1

  1. Male or female paediatric subjects from birth to <18 years of age who are receiving concomitant systemic antifungals (oral or IV) as prophylaxis for IFI or to treat a suspected or confirmed fungal infection.

Exclusion criteria 6

  1. History of anaphylaxis, hypersensitivity, or any serious reaction to the echinocandin class of antifungals and/or excipients of this formulation;
  2. Previous or current medical conditions of severe ataxia, persistent tremors, intracranial haemorrhage or neuropathy, or a diagnosis of epilepsy, multiple sclerosis, or a movement disorder (including, but not limited to, cerebral palsy and muscular dystrophy);
  3. Subjects with impaired renal or hepatic functions (alanine aminotransferase or aspartate aminotransferase >3 times the upper limit of normal, conjugated bilirubin >24 µmol/L [1.4 mg/dL], serum creatinine >177 µmol/L [2 mg/dL], or receiving renal replacement therapy);
  4. Subjects with intestinal hypoxia, ischaemia, necrosis, or necrotising enterocolitis;
  5. Subject status is unstable (e.g., with sepsis or disseminated intravascular coagulation), and subject is unlikely to complete required study procedures;
  6. Participation in another interventional treatment trial with an investigational agent or presence of an investigational device at the time of informed consent or within 28 days preceding the informed consent.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 2

  1. Parts 1 and 2: The following PK parameters will be assessed: Cmax, Tmax, AUC0-t, AUC0-∞, CL, Vss, Vz, t1/2
  2. Part 3: Rezafungin plasma concentrations

Secondary endpoints 1

  1. The safety evaluation will be based on clinical review of the following parameters: • Incidence of treatment-emergent adverse events (TEAEs) • Clinical laboratory evaluations (including haematology, blood chemistry and urinalysis) • Vital signs • 12-lead electrocardiograms (ECGs): clinically significant abnormalities • Physical examination findings

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

REZZAYO 200 mg powder for concentrate for solution for infusion

PRD9931889 · Product

Active substance
Rezafungin Acetate
Pharmaceutical form
POWDER FOR CONCENTRATE FOR SOLUTION FOR INFUSION
Route of administration
INTRAVENIOUS INFUSION
Authorisation status
Not Authorised
MA holder
MUNDIPHARMA RESEARCH LTD
Paediatric formulation
No
Orphan designation
Yes
Orphan designation number
EU/3/20/2385

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Mundipharma Research Limited

Sponsor organisation
Mundipharma Research Limited
Address
196 Science Park, Milton Road Milton Road
City
Cambridge
Postcode
CB4 0AB
Country
United Kingdom

Scientific contact point

Organisation
Mundipharma Research Limited
Contact name
Gu-Lung Lin

Public contact point

Organisation
Mundipharma Research Limited
Contact name
Terry Nichols

Third parties 5

OrganisationCity, countryDuties
Medidata Solutions Inc.
ORG-100016256
New York, United States E-data capture
Almac Clinical Services Limited
ORG-100011829
Craigavon, United Kingdom Code 14, Other
Icon Laboratories Inc.
ORG-100037135
Farmingdale, United States Other
Stichting Radboud University Medical Center
ORG-100023234
Nijmegen, Netherlands Other, Laboratory analysis
Icon Clinical Research Limited
ORG-100008322
Dublin 18, Ireland On site monitoring, Code 10, Code 11, Code 13, Code 14, Other, Code 2, Code 5, Data management, Code 8

Mundipharma Research Limited

Sponsor organisation
Mundipharma Research Limited
Address
196 Science Park, Milton Road Milton Road
City
Cambridge
Postcode
CB4 0AB
Country
United Kingdom

Scientific contact point

Organisation
Mundipharma Research Limited
Contact name
Gu-Lung Lin

Public contact point

Organisation
Mundipharma Research Limited
Contact name
Terry Nichols

Third parties 5

OrganisationCity, countryDuties
Medidata Solutions Inc.
ORG-100016256
New York, United States E-data capture
Almac Clinical Services Limited
ORG-100011829
Craigavon, United Kingdom Code 14, Other
Icon Laboratories Inc.
ORG-100037135
Farmingdale, United States Other
Stichting Radboud University Medical Center
ORG-100023234
Nijmegen, Netherlands Other, Laboratory analysis
Icon Clinical Research Limited
ORG-100008322
Dublin 18, Ireland On site monitoring, Code 10, Code 11, Code 13, Code 14, Other, Code 2, Code 5, Data management, Code 8

Locations

2 EU/EEA countries · 6 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Ended 12 3
Spain Ended 12 3
Rest of world
United Kingdom
16

Investigational sites

Germany

3 sites · Ended
Goethe University Frankfurt
Clinic for Pediatric and Adolescent Medicine, Theodor-Stern-Kai 7, 60590, Frankfurt Am Main
Universitaetsklinikum Essen AöR
Department for Pediatrics III, Hufelandstrasse 55, Holsterhausen, Essen
Westfaelische Wilhelms Universitaet Muenster
Department of Pediatric Hematology/ Oncology, Gebäude A1, Albert-Schweitzer-Campus 1, Münster

Spain

3 sites · Ended
Hospital Universitario 12 De Octubre
Pediatric Infectious Diseases, Bloque D, Avenida De Cordoba S/n, Madrid
Area De Salud De Burgos Y Soria
Pediatric Hematology, Avenida De Las Islas Baleares 3, 09006, Burgos
Hospital Universitario La Paz
Pediatric Hemato-Oncology, Paseo Castellana 261, 28046, Madrid

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2023-06-19 2023-09-08 2024-05-04
Spain 2023-05-18

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 2 · Art. 38 CTR

Temporary halt TH-24211

Halt date
2024-05-04
Member states concerned
Spain
Publication date
2024-05-07
Reason
Sponsor decision
Explanation
Mundipharma Research Ltd. will put the study on temporary recruitment hold after 03-May-2024 due to the impending expiration of the current batch of investigational product. Participants enrolled on or prior to 03-May-2024 will continue with the study until the follow-up visit. There have been significant challenges to enrolment and as a result, Mundipharma plans to propose a new study strategy to the Paediatric Committee (PDCO) of the EMA whilst this study is on hold. Our commitment to rezafungin development in the paediatric population remains unchanged. We consistently review our strategies and adapt our study designs to meet patient needs and facilitate enrolment. Once a decision has been agreed with PDCO on the future strategy of the study, the study will either be restarted with a substantial amendment including a new IMPD related to a new batch of investigational product, or an early termination of the study will be submitted.
Benefit-risk balance changed
No
Treatment stopped
Yes

Temporary halt TH-24212

Halt date
2024-05-04
Member states concerned
Germany
Publication date
2024-05-07
Reason
Sponsor decision
Explanation
Mundipharma Research Ltd. will put the study on temporary recruitment hold after 03-May-2024 due to the impending expiration of the current batch of investigational product. Participants enrolled on or prior to 03-May-2024 will continue with the study until the follow-up visit. There have been significant challenges to enrolment and as a result, Mundipharma plans to propose a new study strategy to the Paediatric Committee (PDCO) of the EMA whilst this study is on hold. Our commitment to rezafungin development in the paediatric population remains unchanged. We consistently review our strategies and adapt our study designs to meet patient needs and facilitate enrolment. Once a decision has been agreed with PDCO on the future strategy of the study, the study will either be restarted with a substantial amendment including a new IMPD related to a new batch of investigational product, or an early termination of the study will be submitted.
Benefit-risk balance changed
No
Treatment stopped
Yes

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Summary of results Art. 37(4) CTR

TitleSubmission dateStatusType
Study results
SUM-78445
2025-04-09T13:04:37 Submitted Summary of Results

Layperson summary Annex V

TitleSubmission dateStatusType
Trial results 2025-04-09T13:04:47 Submitted Laypersons Summary of Results

Documents 4 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Laypersons summary of results (for publication) Layperson Summary of Results 1
Laypersons summary of results (for publication) Layperson Summary of Results_German 1
Laypersons summary of results (for publication) Layperson Summary of Results_Spanish 1
Summary of results (for publication) Summary of Results 1

Application history

4 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2022-11-28 Spain Acceptable
2023-04-17
2023-04-18
2 SUBSTANTIAL MODIFICATION SM-1 2023-04-26 Acceptable 2023-05-03
3 SUBSTANTIAL MODIFICATION SM-2 2023-08-01 Spain Acceptable
2023-10-30
2023-10-31
4 NON SUBSTANTIAL MODIFICATION NSM-1 2023-11-09 Spain Acceptable
2023-10-30
2023-11-09