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Ongoing, recruitingHuman Pharmacology (Phase I)- First administration to humansInterventional

A study to assess the safety of ARGX-121 in Healthy Adult Participants

This study is testing a new medication called ARGX-121 for the very first time in people. Its main goal is to find out if the medicine is safe for healthy adults to take. Researchers will give small amounts of ARGX-121 to volunteers and carefully watch them for any side effects or problems. This type of early study is important to make sure new medicines can be safely tested further. They are not looking for health benefits yet, just how the body reacts to the medicine and if it's safe enough to continue researching. Healthy adults, aged 18 and over, are invited to take part.

At a glance

Status
Ongoing, recruiting
Phase
Human Pharmacology (Phase I)- First administration to humans
Sponsor
Argenx
Enrolment target
120
Start
30 May 2025

What is this study about?

This study is an early step in testing a new medicine called ARGX-121. When a new medication is developed, it goes through several stages of testing to make sure it's safe and effective before it can be used widely. This particular study is called a 'Phase I' trial, which means it's one of the very first times the medicine will be given to humans. The main purpose at this stage is to check for safety.

Researchers will give ARGX-121 to healthy adult volunteers. By 'healthy', we mean people who don't have any major medical conditions that could interfere with how the medicine works or how the body reacts to it. The team will carefully watch these volunteers to see if they experience any side effects, and how their bodies handle the new medicine. This helps them understand what doses might be safe for future studies.

It's important to know that at this early stage, the study isn't designed to see if ARGX-121 treats any specific illness. Instead, it's all about gathering information on its safety. Information from this study is crucial for deciding if it's safe enough to continue testing ARGX-121 in people who might have certain health conditions in the future.

Key takeaways

  • This is an early safety study for a new medicine called ARGX-121.
  • It's the first time this medicine will be given to humans.
  • Only healthy adults, aged 18 and over, can take part.
  • The main goal is to check for side effects and how the body reacts to the medicine.
  • Your participation helps advance medical research for potential future treatments.
  • You can stop participating at any time if you change your mind.

Who may be eligible?

This study is looking for healthy adults. You need to be at least 18 years old to take part. There is no upper age limit, meaning older adults can also participate as long as they are generally healthy.

Both men and women are welcome and encouraged to take part in this study. The most important thing is that you are in good general health, as confirmed by the study doctors after some health checks.

Being 'healthy' for this study means you don't have any significant ongoing medical conditions, are not taking certain medications that could react badly with the study drug, and meet other specific health criteria set by the researchers. These details will be fully explained if you are interested in joining.

Could this study suit you?

Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.

  1. Are you at least 18 years old?
  2. Are you generally in good health?
  3. Do you have any major ongoing medical conditions?
  4. Are you currently taking any prescription medications?
  5. Are you able to attend several study visits?
Answer every question to see your result.

What does participation involve?

If you decide to join this study, you will first undergo screening tests to confirm you are healthy enough to participate. This might include blood tests, a physical exam, and checking your medical history. If you qualify, you'll be given the study medication, ARGX-121. This will likely involve a hospital or clinic stay for a short period, so the doctors can closely monitor how you react to the new medicine.

You will have several follow-up visits after you receive the medication. During these visits, the research team will check your health, take more blood samples, and ask about any side effects you might be experiencing. The overall length of your involvement in the study, from your initial screening to your final follow-up, will be fully explained to you before you agree to take part.

Potential risks and benefits

A potential benefit of joining this study is helping advance medical science and contributing to the development of new treatments that might help others in the future. You will also receive careful medical monitoring throughout the study. However, because this is the first time this medicine has been given to humans, there might be unknown side effects or risks. While the researchers will do everything to ensure your safety, the most common risks involve reactions at injection sites, or mild general side effects like headaches or feeling tired, but more serious reactions are possible, though unlikely. Remember, your participation is completely voluntary, and you are free to withdraw from the study at any time, for any reason, without it affecting your usual medical care.

Locations (1)

Some site locations are approximate. We're improving this — please verify with the trial team before travelling.
  • Unverified
    Netherlands

Common questions

What is ARGX-121?

ARGX-121 is a new medicine that is being tested for the very first time in people to see if it is safe.

Why are you looking for healthy people?

Because it's a very early study, using healthy volunteers helps researchers understand the basic safety of the medicine without other health problems complicating the results.

What does 'Phase I' mean?

Phase I means this is one of the first studies where the new medicine is given to humans, mainly to check for safety and how the body handles it.

Will this medicine cure me of anything?

No, this study is only designed to check safety, not to treat any illness. Participants need to be generally healthy to join.

Do I have to pay to be in the study?

No, you will not have to pay to participate. Any study-related medical care and the medication will be provided by the study.

How to find out more

Always speak to your GP or specialist before deciding to take part in a study.

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