| Eligibility |
Inclusion Criteria:
1. Healthy male or female, aged 18-55 years (inclusive) on the day of signing the
informed consent.
2. Have a body weight between 60.0-90.0 kg (inclusive) and a body mass index (BMI)
between 19.0-29.9 kg/m2 (inclusive) at Screening and Day -1.
3. Have 12-lead electrocardiogram (ECG) results without clinically significant abnormal
findings confirmed by the Investigator at Screening and Day -1.
4. Have vital sign results without clinically significant abnormal findings confirmed by
the Investigator at Screening and Day -1.
5. Have physical examination results without clinically significant abnormal findings
confirmed by the Investigator at Screening and Day -1.
6. Female subjects who are not pregnant or nursing at Screening and Day -1, and subjects
who are not planning to become pregnant during study period and until 15 weeks after
the IP administration.
7. Female subjects of non-childbearing potential, defined as one of the following:
1. At least 12 months of natural (spontaneous) amenorrhea with an appropriate
clinical profile (e.g., appropriate age) and follicle-stimulating hormone (FSH)
in the range for menopausal female confirmed by blood test according to current
local standards at Screening
2. Those with history of hysterectomy or surgical removal of both ovaries.
Documentation of surgical procedure performed at least 90 days prior to Screening
or documentation of physical examination is required for confirmation of surgical
sterilisation OR Female subjects of childbearing potential or male subjects with
their (respectively male or childbearing female) partners who agree to use at
least two forms of appropriate contraception method (e.g., established use of
oral, injected, intravaginal, transdermal, or implanted hormonal contraceptive,
placement of an intrauterine device or intrauterine hormone-releasing system,
physical barrier [Note: Female condom and male condom should not be used
together]) from Screening until 15 weeks after the IP administration. Vasectomy
alone will be allowed for male subjects and female subjects of childbearing
potential with a sole vasectomised male partner. Vasectomised subjects or
partners should be medically confirmed for sterilisation. True abstinence alone
will be allowed if this is in line with the preferred and usual lifestyle of the
subject, or for subjects who do not have a partner. Contraceptive methods do not
apply for subjects whose partner is on the same gender.
8. Willing and able to comply with the scheduled visits, treatment plan, clinical
laboratory tests, and other study procedures including lifestyle considerations.
9. Provision of signed and dated written informed consent, which must be obtained prior
to any study-related procedures being performed.
10. Have competence in speaking, writing, and comprehending the local language(s) where
the study is conducted.
Exclusion Criteria:
1. Have a history and/or current presence of clinically significant atopic allergy,
hypersensitivity, or allergic reactions (either spontaneous or following drug
administration), also including known or suspected clinically relevant drug
hypersensitivity to ustekinumab or to any of the excipients.
2. Have a history of and/or current clinically significant gastrointestinal, renal,
hepatic, cardiovascular, haematological, neurologic (including reversible posterior
leukoencephalopathy syndrome), metabolic (including known diabetes mellitus),
psychiatric disorder, drug or alcohol abuse, or allergic disease excluding mild
asymptomatic seasonal allergies.
3. Have a history of significant respiratory disorder (including asthma, non-infectious
pneumonia).
4. Have a history of malignancy (including lymphoma, leukaemia, and skin cancer).
5. Have either active or latent tuberculosis (TB) as indicated by a positive test result
for Mycobacterium tuberculosis at Screening or who have a history of TB.
6. Have a history of serious infection (associated with hospitalisation and/or which
required IV antibiotics) within 180 days prior to Randomisation.
7. Have a history of invasive systemic fungal infections (e.g., histoplasmosis) or other
opportunistic infections judged relevant by the Investigator.
8. Have a clinically significant active infection (bacterial, viral, or fungal) within 28
days prior to Randomisation.
9. Have any systemic or local infection, a known risk for developing sepsis and/or a
known active inflammatory process at Screening or Day -1.
10. Have previously been exposed to ustekinumab (Stelara® and its biosimilar).
11. Have previously been exposed to a monoclonal antibody or fusion protein within 270
days (other than ustekinumab) prior to Randomisation and/or there is confirmed
evidence or clinical suspicion of immunogenicity from previous exposure to a
monoclonal antibody or fusion protein.
12. Have previously been exposed to an immunosuppressive agent or biological agent (any
other than a monoclonal antibody or fusion protein) within 120 days prior to
Randomisation.
13. Have received Bacillus of Calmette and Guerin (BCG) vaccine within 12 months prior to
Randomisation or will require BCG vaccine within 12 months after the IP
administration.
14. Have received live vaccine(s) (other than the BCG vaccine) within 30 days prior to
Randomisation or will require live vaccine(s) within 15 weeks after the IP
administration.
15. Have a personal or family history of prolonged QT interval syndrome or Torsade de
Pointes, or family history of sudden death.
16. Have any of the following abnormal laboratory test results at Screening or Day -1.
1. Serum C-reactive protein = 1.5 × upper limit of normal (ULN)
2. Serum alanine transaminase (ALT) and/or aspartate transaminase (AST) = 1.5 ×
upper limit of normal (ULN).
3. Any other laboratory abnormalities assessed as clinically significant by the
Investigator
17. Have a positive test result for hepatitis B surface antigen (HBsAg), hepatitis C virus
(HCV) antibody, or human immunodeficiency virus (HIV) antibody at Screening.
18. Have a history of immunodeficiency.
19. Have had surgery (including invasive dental treatment or dental surgery) within 90
days prior to Randomisation, and/or plan to have an operation during the study period.
20. Have had a history and/or current presence of an illness within 14 days prior to
Randomisation that is classified as clinically significant by the Investigator.
21. Have a history of and/or current Coronavirus Disease-2019 (COVID-19) defined as one of
the following:
1. Positive test result for COVID-19 by an antigen test for SARS-CoV-2 at Day -1.
(An antigen test for Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
will be performed twice at Day -1. Pharyngeal swab specimen will be collected
separately for each test. If any of two tests are positive, the subject will be
excluded from the study.)
2. Signs and symptoms consistent with COVID-19 (e.g., fever, dry cough, dyspnea,
sore throat, or fatigue) 30 days prior to Randomisation.
3. Have had a positive test result for COVID-19 confirmed by SARS-CoV-2 detection
using real-time reverse transcriptase polymerase chain reaction (RT-PCR).
4. Had a severe course of COVID-19 (e.g., extracorporeal membrane oxygenation (ECMO)
or mechanically ventilate).
22. Have smoked more than 10 cigarettes, 2 cigars, or 2 pipes per day within 90 days prior
to Randomisation.
23. Have regular consumption of alcoholic beverages that exceeds 14 units per week (1 unit
= 12 g of pure alcohol).
24. Have a positive urinary drug screening result or alcohol breath test result at
Screening or Day -1.
25. Have taken any prescription medicine or over-the-counter medicines (except
paracetamol) within 30 days prior to Randomisation that might have an effect on the
objectives of the study in the opinion of the Investigator.
26. Have donated > 100 mL blood or plasma within 28 days prior to Randomisation.
27. Have participated in another study with an investigational drug within 60 days prior
to Randomisation or are currently participating in or intending to participate in
another clinical study of an investigational drug before completion of all scheduled
evaluations in this clinical study.
28. Subjects who, in the opinion of the Investigator, are not likely to complete the study
for whatever reason.
29. Subject who is the Investigator or any sub-Investigator, research assistant,
pharmacist, study coordinator, other staff, or relative thereof directly involved in
the conduct of the clinical study.
30. Vulnerable subjects (e.g., persons kept in detention).
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