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HealthyPhase 1NCT05288660

A Study of a Single Dose of ALXN1210 in Healthy Participants

A Phase 1 study testing ALXN1210 in people with Healthy, run by Alexion Pharmaceuticals, Inc. at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study evaluated the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of a single dose of ALXN1210 in healthy participants, as assessed by electrocardiograms, physical examination, vital signs, laboratory analysis, and assessment of adverse events (AEs). Read more about this study

Who is it for?
Ages 25 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
ALXN1210
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
14 participants
Where
1 siteCanada
Study dates
27 Aug 2014to 13 Mar 2015
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Body mass index from 18 through 29.9 kilogram (kg)/square meter, inclusive, and weight between 50 and 100 kg, inclusive.
  • QT interval (Fridericia's correction); ≤450 milliseconds (msec) for males and ≤470 msec for females at screening and pre-dose on Day 1.
  • Willing and able to give written informed consent and comply with the study visit schedule.
  • Male participant and his female spouse/partner who was of childbearing potential must be using highly effective contraception consisting of 2 forms of birth control (at least 1 of which must be a barrier method), starting at screening and continuing until at least 5 months after the last dose of ALXN1210.
  • Documented vaccination with meningococcal conjugate vaccine (MCV4) at least 14 days and not more than 3 years prior to dosing.

Who cannot join

  • Participants in intimate and prolonged contact (defined as living under the same roof or providing personal care) with individuals who are either immunocompromised, or with a specific underlying medical conditions (anatomic or functional asplenia [including sickle cell disease]; congenital complement, properdin, factor D, or primary antibody deficiencies; acquired complement deficiencies [for example, those receiving eculizumab]; and human immunodeficiency virus [HIV]), people younger than 2 years old and older than 65 years old, and professionals exposed to environments of greater risk for meningococcal disease (research, industrial, and clinical laboratory personnel who are routinely exposed to Neisseria meningitidis, military personnel during recruit training [military personnel may be at increased risk when accommodated in close quarters], daycare center workers, or those living on a college or university campus).
  • Participants living or working in the Saguenay-Lac-St-Jean area (due to increased incidence of meningococcal infections in that specific area).
  • Female participants of childbearing potential, including any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation, or bilateral oophorectomy), or who was pregnant, breastfeeding, or was not postmenopausal.
  • Positive serum pregnancy test at screening or Day -1.
  • Serum creatinine greater than the upper limit of normal (ULN) of the testing laboratory at screening and Day -1.
  • Alanine aminotransferase or aspartate aminotransferase >ULN of the testing laboratory at screening and Day -1.
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  • Any of the following hematology tests: hemoglobin <135 grams (g)/L for males and <120 g/L for females; hematocrit <0.41 L/L for males and <0.36 L/L for females; white blood cells <3.5*10^3/microliter (μL) or >ULN of the testing laboratory; absolute neutrophils <1.5*10^3/μL (<1.0*10^3/μL for black race volunteers) or >ULN of the testing laboratory; and platelets <the lower limit of normal of the testing laboratory or >450*10^3/μL at screening and Day -1.
  • HIV infection (evidenced by HIV-1 or HIV-2 antibody titer).
  • Acute or chronic hepatitis B virus (HBV) infection (evidenced by the presence of HBV surface antigen or immunoglobulin M antibodies against HBV core antigen).
  • Acute or chronic hepatitis C virus infection (evidenced by antibody titer).
  • Active systemic bacterial, viral, or fungal infection within 14 days prior to dosing.
  • Positive QuantiFERON-TB test, indicating possible tuberculosis (TB) infection.
  • History of complement deficiency.
  • History of malignancy other than basal cell carcinoma.
  • Participated in a clinical trial within 30 days before initiation of dosing on Day 1, or used any experimental small-molecule therapy within 30 days prior to dosing on Day 1, or biologic therapy within 90 days prior to initiation of dosing on Day 1 or within 5 half-lives of the product, whichever is greater.
  • Major surgery within the last 90 days prior to dosing.
  • History of any Neisseria infection; history of unexplained, recurrent infection; or infection requiring treatment with systemic antibiotics within the last 90 days prior to dosing.
  • Contraindication to receiving MCV4, including severe (life-threatening) allergic reaction to a previous dose of MCV4; severe (life-threatening) allergy to any vaccine component; previous diagnosis of Guillain-Barré Syndrome.
  • History of allergy to excipients of ALXN1210 (that is, polysorbate 80)
  • History of allergy to penicillin or cephalosporin, or history of significant allergic reaction to other products (anaphylaxis and angioedema).
  • Positive urine drug toxicology screen.
  • Donation of plasma within 7 days prior to dosing. Donation or loss of blood of more than 50 mL of blood within 30 days of dosing, or more than 499 mL of blood within 56 days of dosing.
  • Clinical diagnosis of any autoimmune or rheumatologic disease (for example, systemic lupus erythematosus, and rheumatoid arthritis) or other condition or medical history that, in the opinion of the Investigator, might interfere with the participant's participation in the study, poses an added risk for the participant, or confounds the assessment of the participant or outcome of the study.
  • History of latent or active TB or exposure to endemic areas within 8 weeks prior to the TB test performed at screening.
  • Immunization with a live attenuated vaccine 1 month prior to dosing or planned vaccination during the course of the study (except for the vaccination planned by the study protocol).
  • Presence of fever (body temperature > 37.6°C) (for example, a fever associated with a symptomatic viral or bacterial infection) within 2 weeks prior to the first dosing.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Clinical Trial Site

    Montreal

Other trials in Canada

About this study

Official title: A Phase 1, Randomized, Blinded, Placebo Controlled, Single Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of a Single Dose of ALXN1210 Administered Intravenously to Healthy Subjects

This study evaluated the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of a single dose of ALXN1210 in healthy participants, as assessed by electrocardiograms, physical examination, vital signs, laboratory analysis, and assessment of adverse events (AEs).

Read the detailed description

The participants were randomized in a 2:1 ratio (4 active and 2 placebo) to receive a single dose of ALXN1210 or placebo in the 200-milligram (mg) dose cohort and in a 3:1 ratio (6 active and 2 placebo) to receive a single dose of ALXN1210 or placebo in the 400-mg dose cohort, administered by intravenous (IV) infusion. A 150-day observation period was performed for safety, pharmacokinetic, and pharmacodynamic assessments after study drug administration. Antidrug antibody (ADA) levels were monitored in study participants for the duration of the 150-day follow-up period.

Conditions
Healthy
Being tested
ALXN1210, Placebo
Keywords
ALXN1210, Pharmacokinetic, Pharmacodynamic, Safety, Immunogenicity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ALXN1210Drug

    Also called Ultomiris, Ravulizumab

    All doses of ALXN1210 were administered by IV infusion, using programmable IV infusion pump and IV sets with in-line filters, at a fixed rate of 686 mg/hour (equivalent to 137 milliliters [mL]/hour), excluding interruption for safety or technical reason.

  • PlaceboDrug

    All doses of placebo were administered by IV infusion, using programmable IV infusion pump and IV sets with in-line filters, at a fixed rate of 686 mg/hour (equivalent to 137 mL/hour), excluding interruption for safety or technical reason.

Study groups in NCT05288660
Study groupRoleWhat they receive
ALXN1210 200 mgExperimentalALXN1210 was administered intravenously.
Receives: Drug: ALXN1210
ALXN1210 400 mgExperimentalALXN1210 was administered intravenously.
Receives: Drug: ALXN1210
PlaceboPlacebo comparatorPlacebo was administered intravenously.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Treatment Emergent Adverse Events (TEAEs)

    TEAEs were defined as AEs that occurred on or after the date and time of study drug administration, or those that first occurred before dosing but worsened in frequency or severity after study drug administration. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.

    Measured: Baseline up to Day 150

Secondary outcomes (15)
  1. Maximum Observed Serum Concentration (Cmax) of ALXN1210

    Blood samples were collected for estimation of Cmax by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  2. Time To Maximum Observed Serum Concentration (Tmax) of ALXN1210

    Blood samples were collected for estimation of Tmax by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  3. Area Under The Serum Concentration Versus Time Curve From Time Zero To The Time of The Last Quantifiable Concentration (AUC0-t) of ALXN1210

    Blood samples were collected for estimation of AUC0-t by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  4. Area Under The Serum Concentration Versus Time Curve From Time Zero (Dosing) To Infinity (AUCinf) of ALXN1210

    Blood samples were collected for estimation of AUCinf by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  5. Terminal Elimination Rate Constant (λz) of Serum ALXN1210

    Blood samples were collected for estimation of λz by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  6. Terminal Elimination Half-life (t½) of Serum ALXN1210

    Blood samples were collected for estimation of t½ by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  7. Total Clearance (CL) of ALXN1210

    Blood samples were collected for estimation of CL by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  8. Volume of Distribution (Vd) of ALXN1210

    Blood samples were collected for estimation of Vd by noncompartmental analyses using Pharsight Knowledgebase Server 4.0.2 and Phoenix WinNonlin 5.3.

    Measured: Predose, 30 minutes, 4, 8, 24, 48, 96 hours postdose, then at Days 8, 15, 22, 29, 36, 43, 50, 57, 71, 90, 120 and 150

  9. Percent Change From Baseline in Free Complement Component 5 (C5)

    Blood samples were collected for analysis of free C5 concentrations.

    Measured: Baseline, Day 150

  10. Percent Change From Baseline in Total Complement C5

    Blood samples were collected for analysis of total C5 concentrations.

    Measured: Baseline, Day 150

  11. Percent Change From Baseline in Complement C5b-9

    Blood samples were collected for analysis of C5b-9 concentrations.

    Measured: Baseline, Day 8

  12. Percent Change From Baseline in Chicken Red Blood Cell Hemolysis

    Blood samples were collected for analysis of cRBC hemolysis.

    Measured: Baseline, Day 150

  13. Percent Change From Baseline In Complement Classical Pathway (CCP) Activity

    Blood samples were collected for analysis of CCP.

    Measured: Baseline, Day 150

  14. Percent Change From Baseline In Complement Alternative Pathway (CAP) Activity

    Blood samples were collected for analysis of CAP.

    Measured: Baseline, Day 150

  15. Percentage of Participants With Positive Anti-Drug Antibody (ADA)

    Blood samples were collected to evaluate antibody response through development of ADAs.

    Measured: Baseline up to Day 150

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Mar 2022
  2. Study start27 Aug 2014
  3. Primary completion13 Mar 2015
  4. Study completion13 Mar 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Sequential
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05288660
Sponsor's protocol ID
ALXN1210-HV-101
Status last verified
Jun 2022
First submitted
11 Mar 2022
Last updated
9 May 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Alexion has a public commitment to allow requests for access to study data and will be supplying a protocol, CSR, and plain language summaries.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ALXN1210 in people with Healthy, run by Alexion Pharmaceuticals, Inc. at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 26 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 May 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Treatment Emergent Adverse Events (TEAEs) (time frame: Baseline up to Day 150). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 May 2023.

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