New lupus drug CUG252 passes first safety check in small trial
NCT ID NCT05866861
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase study tested the safety of a new drug, CUG252, in 40 adults with mild-to-moderate systemic lupus erythematosus (SLE). Participants received multiple doses of the drug or a placebo by injection. The main goal was to see if the drug is safe and tolerable, and to understand how it moves through the body. The study is complete, but results are not yet available.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- CUG252
- What this could lead to
- If safe and effective, CUG252 could offer a new treatment option to control lupus symptoms.
- What could go wrong
- This is an early Phase 1 safety study with only 40 people. It is not designed to prove effectiveness, and many drugs fail at this stage.
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
-
40 people
The number who actually took part.
- Started
-
Apr 2023
- Finished
-
Apr 2025
- 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 65 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * Male or female participant, aged 18 to 65 years (inclusive), at time of consent * BMI greater than or equal to 18 and less than 39 kg/m2 at Screening * Diagnosis of SLE at least 6 months prior to Screening * Minimal to moderate SLE disease activity * If a participant is taking oral prednisone, the dose must be less than or equal to 20 mg/day for a minimum of 8 weeks prior to Screening and at a stable dose for a minimum of 2 weeks prior to Screening * If a participant is taking azathioprine, antimalarial, mycophenolate mofetil, or methotrexate, the medication(s) must have been started a minimum of 12 weeks prior to Screening and at a stable dose for a minimum of 8 weeks prior to Screening Exclusion Criteria: * Have one or more of the following medical conditions: SARS-CoV-2 infection 30 days prior to drug administration, evidence of Grade 3 or greater hematologic, hepatic, or rental dysfunction, active severe or unstable neuropsychiatric SLE, active severe renal disease, history of severe active lupus nephritis with proteinuria levels greater than 1.0 g/24 hours, or dialysis in the last 6 months. History of current diagnosis of other autoimmune/inflammatory diseases, history of any non-SLE disease that has required treatment with corticosteroids for more than 2 weeks within the last 12 weeks prior to Screening, active clinically significant bacterial, viral, or fungal infection at Screening, active or latent TB at Screening, pulmonary infection or active lung disease besides those related to lupus, or severe pulmonary disease requiring oxygen therapy. History of condition that predisposes participant to infection, confirmed positive serology at Screening, history of opportunistic infection requiring hospitalization or IV antimicrobial treatment within the last year, history of organ or hematopoietic stem cell transplant, history of major surgery within 12 weeks of Screening, history of significant cardiovascular disease, history of gastrointestinal bleeding, history of cancer apart from successfully treated squamous or basal cell carcinoma or cervical cancer in situ. * Are on one or more of the following medications: have received vaccination within 30 days prior to Screening (including COVID-19 vaccination), Aldesleukin or other IL-2 derivatives at any time, T cell depleting agents and inhibitors of T cell activation at any time, Anti-BLyS/BAFF inhibitors, IL-1 receptor antagonist, anti-TNF therapy, and anti-interferon alpha receptor inhibitor within 3 months prior to Screening, rituximab or other B-cell depleting agent within 6 months, glucocorticoids within 6 weeks prior to Day 1, other immunosuppressant drugs within 8 weeks, history of cytotoxic medications within 12 months, receipt of blood products within 6 months, plasmapheresis within 30 days of Screening.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Autoimmune are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Site 1001
Anniston, Alabama, 36207, United States
-
Site 1002
Clearwater, Florida, 33765, United States
-
Site 1003
Duncansville, Pennsylvania, 16635, United States
-
Site 1004
Mesquite, Texas, 75150, United States
-
Site 1005
Middleburg Heights, Ohio, 44130, United States
-
Site 1006
Dallas, Texas, 75231, United States
-
Site 1007
Lawrenceville, Georgia, 30046, United States
-
Site 1009
Tampa, Florida, 33606, United States
-
Site 1010
Columbus, Ohio, 44106, United States
-
Site 1011
La Jolla, California, 92037, United States
-
Site 1012
Seattle, Washington, 98195, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Ear-Zapping device may quiet lupus pain and fatigue
- Can a weekly dipstick at home catch lupus kidney damage early?
- Do rheumatic diseases quietly damage the Eye's oil glands?
- Can a blood test catch lupus flares earlier?
- Can one pill tame four autoimmune diseases? a Long-Term trial puts it to the test
- Can a single drug tame multiple autoimmune diseases?