Pharmacokinetics and Safety of Subcutaneous CSL324 in Healthy Japanese and White Subjects
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ClinicalTrials.gov Identifier: NCT04570267 |
Recruitment Status :
Completed
First Posted : September 30, 2020
Last Update Posted : October 4, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Healthy | Biological: CSL324 Drug: Placebo | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 32 participants |
Allocation: | Randomized |
Intervention Model: | Sequential Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Phase 1, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Pharmacokinetics and Safety of Subcutaneous CSL324 in Healthy Japanese and White Subjects |
Actual Study Start Date : | October 8, 2020 |
Actual Primary Completion Date : | November 17, 2021 |
Actual Study Completion Date : | December 9, 2021 |
Arm | Intervention/treatment |
---|---|
Experimental: CSL324 (Low dose)
One low dose of CSL324 administered subcutaneously on Day 1
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Biological: CSL324
Sterile solution of recombinant anti G-CSF receptor monoclonal antibody for injection
Other Name: Recombinant Anti G-CSF Receptor Monoclonal Antibody |
Experimental: CSL324 (High dose)
One high dose of CSL324 administered subcutaneously on Day 1
|
Biological: CSL324
Sterile solution of recombinant anti G-CSF receptor monoclonal antibody for injection
Other Name: Recombinant Anti G-CSF Receptor Monoclonal Antibody |
Placebo Comparator: Placebo
One dose of placebo administered subcutaneously on Day 1
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Drug: Placebo
Sterile solution of CSL324 formulation buffer for injection |
- Maximum concentration (Cmax) of CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Area under the concentration-time curve from time 0 extrapolated to time infinity (AUC0-inf) of CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Area under the concentration-time curve from time 0 to the last measurable concentration (AUC0-last) of CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Number of subjects with treatment-emergent adverse events (TEAEs) by incidence, by severity, and by causality [ Time Frame: Up to Day 56 ]
- Percentage of subjects with TEAEs by incidence, by severity, and by causality [ Time Frame: Up to Day 56 ]
- Number of subjects with adverse events localized to the administration site by incidence, by severity, and by causality [ Time Frame: Up to Day 7 ]
- Percentage of subjects with adverse events localized to the administration site by incidence, by severity, and by causality [ Time Frame: Up to Day 7 ]
- Time to reach Cmax (Tmax) for CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Terminal half-life (t1/2) for CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Apparent clearance (CL/F) for CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Apparent volume of distribution (Vz/F) for CSL324 in serum [ Time Frame: From Day 1 to Day 56 ]
- Number of subjects with or without anti-CSL324 antibodies [ Time Frame: Up to Day 56 ]
- Percentage of subjects with or without anti-CSL324 antibodies [ Time Frame: Up to Day 56 ]

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Ages Eligible for Study: | 20 Years to 55 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy male or female Japanese or White subjects aged 20 and 55 years, inclusive
- Body weight of at least 45 kg to 100 kg, inclusive
- Body mass index of 18.0 to 32.0 kg/m2, inclusive
Exclusion Criteria:
- A clinically significant medical condition, disorder, or disease of any organ system.
- Concurrent diagnosis of malignancy or history of malignancy (except for nonmelanoma skin cancer or cervical carcinoma in situ that has been adequately treated with no evidence of recurrence for at least 3 months before Screening).
- Immunosuppressive conditions and / or currently taking immunosuppressive or immunomodulative therapy.
- Clinically significant abnormalities on physical examination, vital signs, or laboratory assessments, or neutropenia (defined as absolute neutrophil count < 2.0 × 109/L).
- History of chronic or recurrent infections, clinical signs of active infection and / or fever, current / history of serious infection or hospitalized or received IV antibiotics for an infection in previous 2 months.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04570267
Australia | |
Scientia Clinical Research Ltd | |
Randwick, Australia |
Study Director: | Study Director | CSL Behring |
Responsible Party: | CSL Behring |
ClinicalTrials.gov Identifier: | NCT04570267 |
Other Study ID Numbers: |
CSL324_1003 |
First Posted: | September 30, 2020 Key Record Dates |
Last Update Posted: | October 4, 2022 |
Last Verified: | October 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | CSL will consider requests to share Individual Patient Data (IPD) from systematic review groups or bona-fide researchers. For information on the process and requirements for submitting a voluntary data sharing request for IPD, please contact CSL at clinicaltrials@cslbehring.com. Applicable country specific privacy and other laws and regulations will be considered and may prevent sharing of IPD. If the request is approved and the researcher has executed an appropriate data sharing agreement, IPD that has been appropriately anonymized will be available. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) |
Time Frame: | IPD requests may be submitted to CSL no earlier than 12 months after publication of the results of this study via an article made available on a public website. |
Access Criteria: | Requests may only be made by systematic review groups or bona-fide researchers whose proposed use of the IPD is non-commercial in nature and has been approved by an internal review committee. An IPD request will not be considered by CSL unless the proposed research question seeks to answer a significant and unknown medical science or patient care question as determined by CSL's internal review committee. The requesting party must execute an appropriate data sharing agreement before IPD will be made available. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |