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New investigational drug PTT-121: a first step toward future therapies?

NCT ID NCT07768176

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time

Summary

This early-stage trial is testing an investigational drug called PTT-121 in healthy Chinese adults. The main goal is to see if the drug is safe and tolerable when given intravenously, and to understand how the body processes it. Participants will receive either the drug or a placebo, and researchers will monitor for any side effects and measure drug levels in the blood over time.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
PTT-121, an investigational drug given intravenously
What this could lead to
If successful, this early trial could pave the way for further studies of PTT-121 as a potential treatment for various conditions.
What could go wrong
This is a very early Phase 1 study focused on safety, not effectiveness. The drug may cause side effects or fail to show promise in later trials.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 84 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Feb 2028

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy adults aged between 18 and 55 years. * BMI 18.0-26.0. * Those who are adequate to be subjects in this study upon judgment of the investigator after physical examination, clinical laboratory test, examination, etc. Exclusion Criteria: * History of any clinically significant disease or disorder of the cardiovascular, respiratory, gastrointestinal, genitourinary, hematologic/lymphatic, neurologic, reproductive, psychiatric, endocrine, immunologic, musculoskeletal, breast, ear, ocular, thyroid, neoplastic, metabolic, or dermatologic systems, as determined by the Investigator. * History of hypersensitivity to the active ingredient of the investigational product, any of its excipients, or related compounds; or a history of severe drug-induced allergic reactions, including but not limited to angioedema and bronchospasm/asthma.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Peking University Third Hospital

    Beijing, Beijing Municipality, 100089, China

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