- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05254613
A Study of Single and Multiple SC Doses of ALXN1830 in Healthy Adult Participants
March 20, 2024 updated by: Alexion Pharmaceuticals, Inc.
A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Single and Multiple Ascending Dose Study of Subcutaneous ALXN1830 in Healthy Participants
This study will evaluate the effects of single ascending doses (SAD) and multiple ascending doses (MAD) of ALXN1830 administered subcutaneously (SC) to healthy adult participants.
Study Overview
Detailed Description
This Phase 1 study will consist of 3 SAD (Cohorts 1 to 3) and 4 MAD (Cohorts 4 to 7) cohorts.
Participants will be randomly assigned in a 6:2 ratio to each of the 7 cohorts to receive either single or multiple doses of ALXN1830 (n = 6 per cohort) or single or multiple doses of placebo (n = 2 per cohort).
Study Type
Interventional
Enrollment (Actual)
12
Phase
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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London, United Kingdom
- Clinical Trial Site
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- Satisfactory medical assessment.
- Participants must have had vaccination against pneumococcus (Pneumovax 23 [PPSV23]) at least 28 days, and maximally 4 years prior to Day 1.
- Participants must have had seasonal influenza vaccination for the current season at least 28 days prior to Day 1.
- Body weight within 50 to 90 kg, inclusive, and body mass index (BMI) within the range of 18 to 24.9 kg/m^2, inclusive.
- Must be willing to follow protocol-specified contraception guidance during the study and for up to 3 months after last dose of study drug.
Exclusion Criteria:
- Current/recurrent diseases or relevant medical history.
- Known exposure to therapeutic proteins, such as monoclonal antibodies, including marketed drugs prior to dosing.
- Participants who have prior exposure to ALXN1830.
- Exposure to more than 4 new (small molecule) investigational compounds within 12 months prior to dosing.
- Current enrollment or past participation within the last 90 days before signing of consent in this or any other interventional clinical study.
- Presence of hepatitis B surface antigen (HBsAg) at Screening.
- Positive hepatitis C antibody test result at Screening.
- Positive human immunodeficiency virus (HIV) antibody test at Screening.
- Participants who are either immunocompromised or have one of the following underlying medical conditions: anatomic or functional asplenia (including sickle cell disease); primary antibody deficiencies
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Cohort 1
Participants will receive a single SC dose of ALXN1830 or placebo (750 mg).
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ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 2
Participants will receive a single SC dose of ALXN1830 or placebo (1500 mg).
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ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 3
Participants will receive a single SC dose of ALXN1830 or placebo (2250 mg).
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ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 4
Participants will receive multiple SC doses of ALXN1830 or placebo (300 mg twice weekly; 8 doses total).
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ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 5
Participants will receive multiple SC doses of ALXN1830 or placebo (750 mg once weekly; 12 doses total).
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ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 6
Participants will receive multiple SC doses of ALXN1830 or placebo (1500 mg once weekly; 4 doses total).
|
ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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Experimental: Cohort 7
Participants will receive multiple SC doses of ALXN1830 or placebo (2250 mg once weekly; 4 doses total).
|
ALXN1830 will be administered as SC infusion(s).
Placebo will be administered as SC infusion(s).
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants With Treatment Emergent Adverse Events (TEAEs)
Time Frame: Baseline up to Day 64
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A TEAE was defined as any adverse event (AE) that commences after the start of administration of study drug.
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study drug, whether or not considered related to the study drug.
An AE was considered serious if, in the view of the investigator or sponsor, it resulted in any of the following outcomes: death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, or a congenital anomaly/birth defect.
A summary of all serious AEs and other AEs (nonserious) regardless of causality is located in 'Adverse events' Section.
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Baseline up to Day 64
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Area Under The Serum Concentration Versus Time Curve From Time Zero (Dosing) To The Last Quantifiable Concentration (AUC0-t) of ALXN1830
Time Frame: Predose, end of infusion, and 0.5, 2, 4, 8, and 12 hours postdose on Day 1; and Days 2 to 8
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Predose, end of infusion, and 0.5, 2, 4, 8, and 12 hours postdose on Day 1; and Days 2 to 8
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Percent Change From Baseline in Immunoglobulin G (IgG) Levels at Day 10
Time Frame: Baseline, Day 10
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Baseline, Day 10
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Number of Participants With Positive Anti-Drug Antibodies (ADA)
Time Frame: Baseline up to Day 64
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Baseline up to Day 64
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Number of Participants With Positive Neutralizing Antibodies (NAbs)
Time Frame: Baseline up to Day 64
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All samples that are confirmed positive for ADA were evaluated for the presence of neutralizing antibodies.
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Baseline up to Day 64
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Helpful Links
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
November 12, 2019
Primary Completion (Actual)
January 22, 2021
Study Completion (Actual)
January 22, 2021
Study Registration Dates
First Submitted
February 15, 2022
First Submitted That Met QC Criteria
February 15, 2022
First Posted (Actual)
February 24, 2022
Study Record Updates
Last Update Posted (Actual)
March 22, 2024
Last Update Submitted That Met QC Criteria
March 20, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Other Study ID Numbers
- ALXN1830-HV-105
- 2019-003496-18 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
Yes
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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