A phase 1 trial evaluating the absorption, safety and tolerability of imlifidase after a single dose in healthy Japanese men

ISRCTN ISRCTN45338135
DOI https://doi.org/10.1186/ISRCTN45338135
IRAS number 1005630
Secondary identifying numbers IRAS 1005630, PXL 272092
Submission date
19/05/2022
Registration date
20/05/2022
Last edited
27/05/2025
Recruitment status
No longer recruiting
Overall study status
Deferred
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Not provided at time of registration

Contact information

Dr David Steel
Principal Investigator

Parexel Early Phase Clinical Unit
Level 7, Northwick Park Hospital
Watford Road
Harrow
London
HA1 3UJ
United Kingdom

Phone +44 (0)808 134 6555
Email drugtrial@parexel.com
Dr David Steel
Scientific

Parexel Early Phase Clinical Unit
Level 7, Northwick Park Hospital
Watford Road
Harrow
London
HA1 3UJ
United Kingdom

Phone +44 (0)808 134 6555
Email drugtrial@parexel.com
Dr David Steel
Public

Parexel Early Phase Clinical Unit
Level 7, Northwick Park Hospital
Watford Road
Harrow
London
HA1 3UJ
United Kingdom

Phone +44 (0)808 134 6555
Email drugtrial@parexel.com

Study information

Study designPharmacokinetic pharmacodynamic safety and tolerability study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeOther
Participant information sheet No participant information sheet available
Scientific titleA phase 1 trial evaluating the pharmacokinetics, pharmacodynamics, safety, and tolerability of imlifidase after administration of a single intravenous dose in healthy Japanese men
Study hypothesisPK/PD in healthy Japanese volunteers
Ethics approval(s)1. Approved 05/05/2022, London-Brent REC (80 London Road, Skipton House, London, SE1 6LH, UK; +44(0)20 7104 8137; brent.rec@hra.nhs.uk), ref: 22/LO/0315
2. Approved 05/05/2022, MHRA (10 South Colonnade, Canary Wharf, London, E14 4PU, UK; +44 (0) 20 3080 6000; info@mhra.gov.uk), ref: CTA 46323/0005/001-0001
ConditionHealthy volunteers
InterventionAll subjects received an intravenous dose of 0.25 mg/kg imlifidase on Day 1, administered over 15 minutes. Follow up for 14 days.
Intervention typeDrug
Pharmaceutical study type(s)Pharmacokinetic, Pharmacodynamic
PhasePhase I
Drug / device / biological / vaccine name(s)Imlifidase
Primary outcome measurePK was measured as concentration of imlifidase in serum from pre-dose until Day 14
Secondary outcome measures1. Safety was assessed as adverse events (AEs) from obtaining the informed consent throughout the study. An AE is any untoward medical occurrence in a subject participating in the clinical trial. An AE could be any unfavourable and unintended sign, symptom or disease temporally associated with the treatment, whether or not considered related to the study drug
2. PD was assessed as concentration of IgG in serum throughout the study
Overall study start date19/04/2022
Overall study end date30/09/2022

Eligibility

Participant type(s)Healthy volunteer
Age groupAdult
SexMale
Target number of participants8
Participant inclusion criteria1. Healthy man
2. Between 20 and 60 years old
3. Both parents and all 4 grandparents were ethnically Japanese
Participant exclusion criteria1. Previous participation in this study
2. Present participation in another clinical trial, or use of any investigational drug or therapy, taking into account participation in a medical device study, within 90 days or 5 half-lives, whichever is longer, prior to administration of IMP
3. Prescence or history of any clinically significant disease or disorder which, in the opinion of the Investigator, may either put the subject at risk because of participation in the study, or influence the results or the subject’s ability to participate in the study
Recruitment start date29/06/2022
Recruitment end date30/09/2022

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Parexel Early Phase Clinical Unit
Level 7, Northwick Park Hospital
Watford Road
Harrow
London
HA1 3UJ
United Kingdom

Sponsor information

Hansa Biopharma (Sweden)
Industry

P.O. Box 785
Lund
SE-220 07
Sweden

Phone +46 (0) 46 16 56 70
Email info@hansabiopharma.com
Website http://www.hansabiopharma.com/
ROR logo "ROR" https://ror.org/001r0mk78

Funders

Funder type

Industry

Hansa Biopharma AB

No information available

Results and Publications

Intention to publish date31/03/2025
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPotential publication in a peer-reviewed journal
IPD sharing planThe datasets generated and/or analysed during the current study are not expected to be made available because of their high commercial sensitivity and the negligible benefit to the public of publication of results of non-therapeutic clinical trials.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 23/05/2025 23/05/2025 No No

Additional files

ISRCTN45338135_BasicResults_23May2025.pdf

Editorial Notes

The information for which publication was previously deferred has been added to the following fields:
1. The public title
2. The scientific title
3. Study hypothesis
4. Condition
5. Interventions
6. Drug name(s)
7. Primary outcome measure
8. Secondary outcome measures
9. Participant inclusion criteria
10. Participant exclusion criteria
23/05/2025: The basic results have been uploaded as an additional file.
20/05/2022: Trial's existence confirmed by MHRA.