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Systemic Lupus ErythematosusPhase 1NCT07906145

A Phase 1 Study of QLS2416 Injection in Participants With Autoimmune Diseases

A Phase 1 study testing QLS2416 Injection in people with Systemic Lupus Erythematosus and Rheumatoid Arthritis (RA), run by Shanghai Qilu Pharmaceutical Research and Development Center LTD.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to evaluate the safety, tolerability, pharmacokinetics (PK), immunogenicity, and efficacy of QLS2416 injection in participants with autoimmune diseases (AID). Read more about this study

Who is it for?
Ages 18 to 70 years
What is being tested?
QLS2416 Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
76 participants
Where
No sites listed yet
Study dates
Dec 2026to Dec 2029
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female participants aged 18 to 70 years (inclusive) at the time of ICF signing.
  • Able to understand and voluntarily sign the written informed consent form (ICF).
  • For SLE: Diagnosed with SLE per 2019 EULAR/ACR classification criteria; disease duration ≥ 24 weeks; SLEDAI-2K ≥ 4; inadequate response or intolerance to glucocorticoids combined with at least one immunosuppressant or biologic agent.
  • For RA: Diagnosed with RA per 2010 ACR/EULAR classification criteria; disease duration ≥ 12 weeks; DAS28-CRP ≥ 3.2; TJC28 ≥ 4 and SJC28 ≥ 4; inadequate response to at least one csDMARD combined with at least one bDMARD/tsDMARD.
  • For pSS: Diagnosed with pSS per 2016 ACR/EULAR classification criteria; disease duration ≥ 12 weeks and ≤ 10 years; clinESSDAI ≥ 5; positive ANA, anti-SSA/Ro, anti-SSB/La, or RF.
  • For SSc: Diagnosed with diffuse cutaneous SSc per 2013 ACR/EULAR classification criteria; disease duration ≤ 7 years; mRSS > 10; PhGA ≥ 3.0.
  • Women of childbearing potential must agree to use highly effective contraception throughout the study period and for 3 months after the last dose.

Who cannot join

  • History of catastrophic antiphospholipid syndrome or saddle pulmonary embolism; new thromboembolic events within 1 year prior to screening; currently on anticoagulation therapy.
  • Clinically significant cardiovascular or cerebrovascular disease, including decompensated heart failure (NYHA III/IV), uncontrolled severe hypertension, or severe arrhythmia.
  • Severe respiratory disease, including severe pulmonary arterial hypertension, FVC% < 60%, or DLCOc% < 40%.
  • History of malignancy within 5 years prior to screening (except adequately treated basal cell carcinoma, squamous cell carcinoma of skin, cervical carcinoma in situ, or papillary thyroid carcinoma).
  • Active or chronic infections, including HIV infection, chronic HBV/HCV infection, latent or active tuberculosis (as applicable to study part).
  • Known hypersensitivity to QLS2416 or any of its excipients; history of severe atopic disease or anaphylaxis.
Show all 10Show fewer
  • Prior bone marrow transplantation; prior CAR-T, CAR-NK, or T-cell engager therapy.
  • Laboratory abnormalities: hemoglobin < 80 g/L, WBC < 2.5×10^9/L, ANC < 1.0×10^9/L, platelets < 50×10^9/L, ALT/AST > 2×ULN, eGFR < 45 mL/min/1.73m², or IgG < 6 g/L.
  • Pregnant or breastfeeding women.
  • Major surgery within 2 months prior to screening; live vaccine within 4 weeks prior to screening.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Official title: A Phase 1 Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Immunogenicity, and Efficacy of QLS2416 Injection in Participants With Autoimmune Diseases

The goal of this clinical trial is to evaluate the safety, tolerability, pharmacokinetics (PK), immunogenicity, and efficacy of QLS2416 injection in participants with autoimmune diseases (AID).

The main questions it aims to answer are:

  • What is the safety and tolerability profile of single and multiple ascending doses of QLS2416 injection?

This study consists of two parts. Participants will receive QLS2416 injection via subcutaneous administration in dose-escalation part and dose-expansion part. Safety assessments will be conducted throughout the study. Efficacy assessments will vary by disease indication.

Read the detailed description

This is a Phase 1, multicenter, open-label, dose-escalation and dose-expansion study of QLS2416 injection in participants with autoimmune diseases.

The study consists of two parts:

  1. Dose Escalation Part:
  • Up to 42 participants with active SLE, RA, or pSS will be enrolled across up to 7 dose cohorts (0.025 mg to 6.0 mg).
  • A Safety Monitoring Committee (SMC) will review safety, PK, pharmacodynamic (PD), and efficacy data before dose escalation.
  1. Dose Expansion Part:
  • Approximately 24 participants with SLE and 10 participants with dcSSc will be enrolled
  • Multiple dosing may be administered based on emerging safety, efficacy, and PK data.

QLS2416 is a novel biologic agent being developed for the treatment of B-cell-mediated autoimmune diseases. The study will characterize the safety, tolerability, PK, PD, immunogenicity, and preliminary efficacy of QLS2416 in participants with active autoimmune diseases who have had inadequate response or intolerance to standard therapies.

Being tested
QLS2416 Injection
Keywords
QLS2416, Autoimmune Diseases, Systemic Lupus Erythematosus, Rheumatoid Arthritis, Sjögren's Syndrome, Systemic Sclerosis
Medical subject headings
Lupus Erythematosus, Systemic, Arthritis, Rheumatoid, Scleroderma, Systemic, Autoimmune Diseases, Sjogren's Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • QLS2416 InjectionDrug

    QLS2416 is a novel biologic agent administered via subcutaneous injection. Dose levels range from 0.025 mg to 6.0 mg.

Study groups in NCT07906145
Study groupRoleWhat they receive
QLS2416ExperimentalDose Escalation Part: Participants with active SLE, RA, or pSS will receive single ascending subcutaneous doses of QLS2416 injection across 7 dose levels (0.025 mg to 6.0 mg). Dose Expansion Part: Participants with active SLE or SSc will receive multiple dosing of QLS2416 injection at 3 dose levels within the 4-week treatment period.
Receives: Drug: QLS2416 Injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety and Tolerability of QLS2416 Injection

    Incidence and severity of treatment-emergent adverse events.

    Measured: Up to 24 weeks

Secondary outcomes (11)
  1. Pharmacokinetic Profile of QLS2416

    Peak Plasma Concertration(Cmax)

    Measured: Up to 24 weeks

  2. Pharmacokinetic Profile of QLS2416

    Time to maximum plasma concentration(Tmax)

    Measured: Up to 24 weeks

  3. Pharmacokinetic Profile of QLS2416

    Elimination half-life (t1/2)

    Measured: Up to 24 weeks

  4. Anti-Drug Antibody

    Incidence of anti-QLS2416 antibodies (ADA)

    Measured: Up to 24 weeks

  5. SLE Responder Index (SRI) and Other SLE Disease Activity Measures

    Percentage of participants achieving SRI (4)

    Measured: Up to 24 weeks

  6. SLE Responder Index (SRI) and Other SLE Disease Activity Measures

    Percentage of participants achieving Definitions Of Remission In Systemic Lupus Erythematosus remission(DORIS remission)

    Measured: Up to 24 weeks

  7. SLE Responder Index (SRI) and Other SLE Disease Activity Measures

    Percentage of participants achieving Lupus Low Disease Activity State(LLDAS)

    Measured: Up to 24 weeks

  8. RA Disease Activity Measures

    Changes in Disease Activity Score in 28 Joints - C-reactive Protein (DAS28-CRP).

    Measured: Up to 24 weeks

  9. pSS Disease Activity Measures

    Changes in Clinical European League Against Rheumatism Sjögren's Syndrome Disease Activity Index (clinESSDAI).

    Measured: Up to 24 weeks

  10. SSc Disease Activity Measures

    Changes in modified Rodnan skin score (mRSS).

    Measured: Up to 52 weeks

  11. SSc Disease Activity Measures

    Changes in Combined Response Index for Systemic Sclerosis(CRISS).

    Measured: Up to 52 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Oct 2026
  2. Study startDec 2026 (estimated)
  3. Primary completionJun 2029 (estimated)
  4. Study completionDec 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
76 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07906145
Sponsor's protocol ID
QLS2416-101
Status last verified
Oct 2026
First submitted
23 Oct 2026
Last updated
30 Oct 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing QLS2416 Injection in people with Systemic Lupus Erythematosus and Rheumatoid Arthritis (RA), run by Shanghai Qilu Pharmaceutical Research and Development Center LTD.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 30 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Rong Mu (010-82265699, Murongster@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety and Tolerability of QLS2416 Injection (time frame: Up to 24 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Oct 2026.

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