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Healthy ParticipantsPhase 1NCT05721989

A Research Study Looking Into Blood Levels of Three Different Formulations of the Study Medicine Ziltivekimab

A Phase 1 study testing Ziltivekimab B, Ziltivekimab D and Ziltivekimab C in people with Healthy Participants, run by Novo Nordisk A/S at 2 sites in 2 countries.

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

A research study to investigate how quickly and to what extent different compositions of the study medicine ziltivekimab are absorbed, transported, and eliminated from the body. Ziltivekimab is not yet approved for market. The study medicine will be injected under the skin (this is called subcutaneous administration). Read more about this study

Who is it for?
Ages 18 to 64 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Participants
What is being tested?
Ziltivekimab B, Ziltivekimab D and Ziltivekimab C
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
267 participants
Where
2 sitesin 2 countries
Study dates
3 Feb 2023to 8 Jan 2024
Phase
Phase 1
Are there results?
None posted in the registry

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 18 to 64 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male or female
  • Aged 18-64 years (both inclusive) at the time of signing informed consent.
  • Body mass index (BMI) between 18.5 and 29.9 kilograms per square meter (kg/m^2) (both inclusive).
  • Considered to be generally healthy based on the medical history, physical examination, and the results of vital signs, electrocardiogram and clinical laboratory tests performed during the screening visit, as judged by the investigator.

Who cannot join

  • Known or suspected hypersensitivity to study intervention(s) or related products.
  • Female who is pregnant, breast-feeding or intends to become pregnant or is of childbearing potential and not using adequate contraceptive method.
  • Any disorder which in the investigator's opinion might jeopardise participant's safety or compliance with the protocol.
  • Use of prescription medicinal products or non-prescription drugs, except routine vitamins, topical medication, highly effective contraceptives and occasional use of paracetamol, acetylsalicylic acid within 14 days before trial product administration.
  • Clinical evidence of, or suspicion of, active infection at the discretion of the investigator.

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Hungary1 site
  • ICON Budapest Phase I Unit

    Budapest, 1077

Other trials in Hungary

Netherlands1 site
  • ICON - location Groningen

    Groningen, 9728 NZ

Other trials in Netherlands

About this study

Official title: A Comparative Bioavailability Study of a Single Dose of Ziltivekimab Formulation B in a Manual Syringe, Formulation D in a Manual Syringe and Formulation C in a Pen-injector

A research study to investigate how quickly and to what extent different compositions of the study medicine ziltivekimab are absorbed, transported, and eliminated from the body. Ziltivekimab is not yet approved for market. The study medicine will be injected under the skin (this is called subcutaneous administration). Two different administration methods will be compared: a syringe and a pen-injector. A pen-injector is a device that is developed to make injections more easy and convenient. They are for example used by diabetes patients to inject insulin. It will also be investigated how safe ziltivekimab is and how well it is tolerated when it is used by healthy participants. Ziltivekimab has already been administered to patients with chronic kidney disease or rheumatoid arthritis. The current study will be the first study where ziltivekimab will be given to healthy participants.

Being tested
Ziltivekimab B, Ziltivekimab D, Ziltivekimab C

What participants receive

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

  • Ziltivekimab BDrug

    Participants will receive a single s.c. injection of 15 mg ziltivekimab B (15 mg/mL) by single-use pre-filled manual syringe on Day 1.

  • Ziltivekimab DDrug

    Participants will receive a single s.c. injection of 15 mg ziltivekimab D (15 mg/mL) by single-use pre-filled manual syringe on Day 1.

  • Ziltivekimab CDrug

    Participants will receive a single s.c. injection of 15 mg ziltivekimab C (30 mg/mL) by single-use pre-filled syringe assembled into a shield-activated pen-injector on Day 1.

Study groups in NCT05721989
Study groupRoleWhat they receive
Ziltivekimab B (manual syringe)ExperimentalParticipants will receive a single subcutaneous (s.c.) injection of 15 milligram (mg) ziltivekimab B (15 milligrams per milliliter [mg/mL]) by single-use pre-filled manual syringe on Day 1.
Receives: Drug: Ziltivekimab B
Ziltivekimab D (manual syringe)ExperimentalParticipants will receive a single s.c. injection of 15 mg ziltivekimab D (15 mg/mL) by single-use pre-filled manual syringe on Day 1.
Receives: Drug: Ziltivekimab D
Ziltivekimab C (pen-injector)ExperimentalParticipants will receive a single s.c. injection of 15 mg ziltivekimab C (30 mg/mL) by single-use pre-filled syringe assembled into a shield-activated pen-injector on Day 1.
Receives: Drug: Ziltivekimab C

What is being measured

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

  1. AUC0-inf, zilti, SD: Area under the ziltivekimab serum concentration-time curve from 0 hours and extrapolated to infinity after a single dose

    Measured in day*microgram per milliliter (day*μg/mL).

    Measured: From day 1 (pre-dose) to day 183 after a single dose

Secondary outcomes (9)
  1. Cmax, zilti, SD: Maximum observed ziltivekimab serum concentration after a single dose

    Measured in micrograms per milliliters (μg/mL).

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  2. AUC0-183 days, zilti, SD: Area under the ziltivekimab serum concentration-time curve from 0 hours to day 183 after a single dose

    Measured in day*μg/mL.

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  3. tmax, zilti, SD: Time to maximum observed ziltivekimab serum concentration after a single dose

    Measured in days.

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  4. t1/2, zilti, SD: Terminal half-life for ziltivekimab after a single dose

    Measured in days.

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  5. Cl/F, zilti, SD: Apparent total serum clearance of ziltivekimab after a single dose

    Measured in liters per day (L/day).

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  6. V/F, zilti, SD: Apparent volume of distribution of ziltivekimab after a single dose

    Measured in liters (L).

    Measured: From day 1 (pre-dose) to day 183 after a single dose

  7. AUC0-50 days, zilti, SD: Area under the ziltivekimab serum concentration-time curve from 0 hours to 50 days after a single dose

    Measured in day*μg/mL.

    Measured: From day 1 (pre-dose) to day 50 after a single dose

  8. Cmax, 0-50 days, zilti, SD: Maximum observed ziltivekimab serum concentration after a single dose

    Measured in μg/mL.

    Measured: From day 1 (pre-dose) to day 50 after a single dose

  9. tmax, 0-50 days, zilti, SD: Time to maximum observed ziltivekimab serum concentration after a single dose

    Measured in days.

    Measured: From day 1 (pre-dose) to day 50 after a single dose

Timeline

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

  1. First posted10 Feb 2023
  2. Study start3 Feb 2023
  3. Primary completion8 Jan 2024
  4. Study completion8 Jan 2024

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
267 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05721989
Sponsor's protocol ID
NN6018-4951
Other IDs
2022-001862-37, U1111-1277-3676
Status last verified
Dec 2025
First submitted
1 Feb 2023
Last updated
30 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: According to the Novo Nordisk disclosure commitment on novonordisk-trials.com

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Ziltivekimab B, Ziltivekimab D and Ziltivekimab C in people with Healthy Participants, run by Novo Nordisk A/S at 2 sites in 2 countries.

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 4 inclusion and 5 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 30 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Hungary, Netherlands. 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. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

AUC0-inf, zilti, SD: Area under the ziltivekimab serum concentration-time curve from 0 hours and extrapolated to infinity after a single dose (time frame: From day 1 (pre-dose) to day 183 after a single dose). 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 30 Dec 2025.

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