Overview

A Study of a Single Dose of ALXN1210 in Healthy Participants

Status:
Completed
Trial end date:
2015-03-13
Target enrollment:
0
Participant gender:
All
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).
Phase:
Phase 1
Accepts Healthy Volunteers?
Accepts Healthy Volunteers
Details
Lead Sponsor:
Alexion Pharmaceuticals
Treatments:
Ravulizumab
Criteria
Inclusion Criteria:

- 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.

Exclusion Criteria:

- 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.

- 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 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.