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CompletedPhase IInterventional

HMR code: 25-018

This study (reference HMR 25-018) is a Phase 1 clinical trial looking for healthy adult volunteers between the ages of 18 and 65. Phase 1 trials are usually the first time a new medicine is tested in people. The main purpose is to check that the treatment is safe, see what side effects it might cause, and measure how the human body breaks it down. Because this is an early-stage study, full details about the exact medicine being tested are under an automatic deferral. This is a common and official process in the UK that allows research teams to protect confidential scientific information for a limited time before publishing the full public record. Volunteers are closely looked after by doctors and nurses throughout the study to make sure they remain safe and well.

At a glance

Status
Completed
Phase
Phase I
Sponsor
Silence Therapeutics (United Kingdom)
Enrolment target
30
Start
02 Jul 2026
Estimated completion
22 Jul 2026

What is this study about?

When new medicines are made, they must go through several testing stages before they can be prescribed by doctors. Phase 1 trials are the very first step of testing in humans. Before a treatment can be given to patients who are unwell, researchers must test it in healthy volunteers. This helps scientists understand how the drug behaves, how quickly it leaves the body, and what dose is safe to use.

This specific study is run under the reference code HMR 25-018. Right now, detailed information about the exact illness this medicine aims to treat has not yet been released to the public. In the UK, research sponsors are legally allowed to request an 'automatic deferral'. This simply means that sensitive scientific details are kept private for a short time to protect new discoveries, but the trial has still passed all the usual strict safety and ethics checks.

Even though the public information is limited right now, anyone who considers joining will be given a complete information sheet. This document explains everything about the medicine, the potential side effects, and what you would need to do. Taking part in studies like this helps medical science advance, bringing future treatments one step closer to patients who need them.

Key takeaways

  • This is a Phase 1 study focused on testing the safety of a new medicine.
  • The trial is open to healthy volunteers aged 18 to 65 years.
  • Full scientific details are temporarily withheld under an official UK deferral rule.
  • Participants will receive thorough health checks and close medical supervision.
  • Taking part is voluntary, and you can withdraw at any time.

Who may be eligible?

This trial is open to healthy men and women aged between 18 and 65 years old. Because this is a Phase 1 safety trial, researchers are specifically looking for people who do not have major ongoing health conditions.

To be considered 'healthy' for a study like this, you will usually need to have normal blood tests, blood pressure, and heart traces (ECGs). You should not be taking regular prescription medicines that could interfere with the study drug. Detailed exclusion rules will be confirmed by the study clinic when you apply.

If you are interested, the trial team will arrange a full health check before you can take part. This ensures that it is completely safe for you to join and that you meet all the study requirements.

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. I am between 18 and 65 years old.
  2. I consider myself to be in good general health.
  3. I am not currently taking regular prescription medicines.
  4. I am happy to attend appointments and follow-up checks at the research clinic.
  5. I do not have a history of serious long-term medical conditions.
Answer every question to see your result.

What does participation involve?

Taking part in a Phase 1 trial usually starts with a screening visit where doctors check your medical history, take blood samples, and carry out physical tests. If you are suitable, you will be invited to the research clinic to receive the study treatment. Depending on the trial plan, this may involve an outpatient visit or staying overnight at the clinic so the medical team can monitor you closely. Staff will take regular blood samples, check your vital signs, and ask how you are feeling. After receiving the treatment, you will have follow-up visits or phone calls over several weeks to check your long-term health and wellbeing.

Potential risks and benefits

Because you are joining as a healthy volunteer, you will not receive any direct medical benefit from taking the medicine. However, volunteers often find it rewarding to help develop new treatments for the future, and studies usually cover travel costs or offer payment for your time. As with any new medicine, there is a risk of unexpected side effects, which can range from mild issues like headaches or nausea to more serious reactions. You will be monitored very closely in a specialist clinic to keep risks as low as possible. You are always in control and have the legal right to leave the trial at any time without giving a reason.

Locations (1)

Some site locations are approximate. We're improving this — please verify with the trial team before travelling.
  • Hammersmith Medicines Research (HMR)
    City only
    London, England

Common questions

What does 'Phase 1' mean?

Phase 1 is the first stage of testing a new medicine in humans. It focuses on finding out if the treatment is safe, what side effects it has, and what dose works best.

Why are some trial details hidden or deferred?

In the UK, researchers can apply to keep certain commercial details private for a short period. However, the trial must still be reviewed and approved by an independent ethics committee to ensure participant safety.

Will I be paid for taking part?

Most Phase 1 trials in healthy volunteers offer financial compensation for your time, inconvenience, and travel expenses. The study team will provide exact amounts before you sign up.

Can I leave the study if I change my mind?

Yes. Taking part is completely voluntary. You can choose to stop and leave the trial at any point, and your decision will always be respected.

Will my GP know that I am in a trial?

Yes. With your permission, the research team will contact your GP to check your medical history and let them know you are taking part for your own safety.

How to find out more

Global Regulatory

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

Discussion

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