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New RA drug enters early safety testing

NCT ID NCT07258849

Disease control Sponsor: Eli Lilly and Company Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study tests a new drug called LY4213663 in healthy volunteers and people with rheumatoid arthritis (RA). The main goal is to see if the drug is safe and what side effects it may cause. Researchers will also measure how the body processes the drug. The study lasts about 33 weeks and involves up to 141 participants.

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 141 people

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

Started

Dec 2025

Expected to finish

Mar 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 75 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: * Have a body mass index (BMI) of 18.0 to 32.0 kilogram per square meter (kg/m²), inclusive Part C and D Only: * Have a body weight at least 50 kilograms and BMI within the range 18.0 to 40.0 kg/m² (inclusive) at screening * Have a diagnosis of adult-onset RA for at least 3 months prior to screening Exclusion Criteria: Healthy Participants for SAD Part A and MAD Part B Only: * Have a history or presence of cardiovascular, respiratory, hepatic, ophthalmological, renal, gastrointestinal, endocrine, hematological, neurological, or psychiatric disorders capable of significantly altering the absorption, metabolism, or elimination of drugs Participants with RA for Parts C and D Only: * Have Class 4 RA according to American College of Rheumatology (ACR) revised criteria * Have a 12-lead electrocardiogram (ECG) abnormality at screening * Have a current or recent acute active infection

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Conditions

The condition(s) this trial relates to.

rheumatoid arthritis

As listed by the trial registrant

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

Healthy Rheumatoid arthritis (RA)

How to take part

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

  1. The places running it

    10 sites in 2 countries. 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

  • AGA Clinical Trials

    RECRUITING

    Hialeah, Florida, 33012, United States

  • Advanced Pharma CR, LLC

    RECRUITING

    Miami, Florida, 33417, United States

  • Arizona Research Center

    RECRUITING

    Phoenix, Arizona, 85053, United States

  • Clinical Research of West Florida, Inc. (Clearwater)

    RECRUITING

    Clearwater, Florida, 33765, United States

  • Floridian Clinical Research

    RECRUITING

    Miami Lakes, Florida, 33016, United States

  • Fortrea Clinical Research Unit

    RECRUITING

    Daytona Beach, Florida, 32117, United States

  • GNP Research at Mark Jaffe, MD

    RECRUITING

    Cooper City, Florida, 33024, United States

  • Oasis Clinical Research

    RECRUITING

    Las Vegas, Nevada, 89121, United States

  • Pinnacle Research Group, LLC

    RECRUITING

    Anniston, Alabama, 36207, United States

  • Universitätsklinikum Charité

    NOT_YET_RECRUITING

    Berlin, 10117, Germany

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