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NCT07237659RecruitingPhase 1

Phase 1a/b Tolerability of NTR-1011 in Healthy Adults and Adult Patients With SLE and RA

A Phase 1a/b, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety of NTR-1011 in Healthy Adults and Adult Patients With Systemic Lupus Erythematosus (SLE) and Rheumatoid Arthritis (RA)

Source: ClinicalTrials.gov · Last updated 20 Jul 2026

Brief summary (registry, in English)

The goal of this clinical trial is to inform the safety and tolerability of NTR-1011 in treating adult patients diagnosed with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). It will also learn about the safety of NTR-1011 in healthy adult volunteers. The main questions it aims to answer are: * What is the highest dose of NTR-1011 that is safe and well tolerated, when given under the skin or into a vein? * How does the body process NTR-1011, and how does NTR-1011 affect the body? * Does the body develop an immune response to NTR-1011? * Are there early signs that NTR-1011 may benefit patients with SLE or RA when added to their current standard-of-care treatment? In the first part of the study (Phase 1a, now complete), researchers compared single doses of NTR-1011 to a placebo (a look-alike substance that contains no drug) in 48 healthy volunteers to see how the body tolerates and processes the drug. In the current part of the study (Phase 1b, actively recruiting), all participants receive NTR-1011 in addition to their usual SLE or RA treatment; there is no placebo group. Up to 24 participants with moderate-to-severe SLE or RA will: * Receive five weekly doses of NTR-1011 given directly into a vein (intravenous) * Continue their current standard-of-care treatment throughout the study * Be monitored for 4 weeks after their last dose * Be assigned to either the SLE group or the RA group (up to 12 patients each)

Status (registry)
Recruiting
Phase (registry)
Phase 1
Study type
Interventional
Enrollment
24 (estimated)
First submitted
12 Nov 2025
Start date
15 Jul 2026
Primary completion date
31 Mar 2027
Lead sponsor
Neutrolis
NCT number
NCT07237659

What you commit to

  • Study type: Interventional · Phase 1
  • Planned participants: 24
  • From 15 Jul 2026 to the primary completion date, 31 Mar 2027
  • 7 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Use of an investigational drug within 30 days (or 5 half-lives) before dosing
  • Positive lupus-related antibodies (e.g., anti-dsDNA, anti-Smith) and low complement (C3/C4)
  • On stable standard-of-care background therapy (e.g., antimalarials, low-dose corticosteroids, and at least one conventional DMARD)
  • Seropositive for rheumatoid factor and/or anti-CCP antibodies
  • On stable standard-of-care background therapy (e.g., low-dose corticosteroids and at least one conventional DMARD)
  • Use of an investigational drug within 30 days (or 5 half-lives) before dosing, or concurrent enrollment in another clinical trial
  • Receipt of a live vaccine within 4 weeks before screening or planned within 4 weeks after last dose
  • Major surgery within 8 weeks before screening or planned within 6 months after baseline

Other illness

  • History of drug allergies or anaphylaxis to human, murine, or yeast proteins, monoclonal antibodies, or other allergens
  • Positive test for hepatitis B, hepatitis C, or HIV
  • Clinically significant heart, lung, digestive, blood, autoimmune, psychiatric, or other medical condition
  • Active disease at screening
  • Moderate-to-severe active disease
  • Known allergy or reaction to NTR-1011, placebo components, or related products
  • History of cancer within the past year (with limited exceptions)
  • Significant kidney impairment, severe liver dysfunction, or severe lung disease
  • Uncontrolled high blood pressure or significant cardiovascular disease (e.g., recent heart attack or stroke, certain arrhythmias)
  • Active, recurrent, or high-risk infection, including active or latent tuberculosis without appropriate treatment, opportunistic infections, or chronic hepatitis B
  • Recent symptoms of COVID-19 without a documented negative test
  • Significant central nervous system disease or pain-amplification conditions (e.g., epilepsy, fibromyalgia) that could interfere with study assessments
  • History of bone marrow, stem cell, or solid organ transplant (except cornea)
  • Uncontrolled diabetes within the past 12 months (with some exceptions)
  • History of a blood clot within the past 12 months (with some exceptions)

Lab values

  • Clinically significant abnormal lab values (e.g., liver enzymes, blood counts) or ECG findings
  • Clinically significant abnormal lab values (e.g., liver enzymes, blood counts) at screening

Age

  • Men and women, 18-75 years of age
  • Up to date on age-appropriate vaccinations Additional Inclusion Criteria - RA Patients

Other

  • Pregnant or breastfeeding
  • Uncontrolled high blood pressure
  • Poor venous access
    • Phase 1b - Adult Patients with SLE and RA (Actively Recruiting)
    • General Inclusion Criteria (All Patients)
  • Able to understand and sign informed consent, and comply with study visits
  • Willing and able to use highly effective contraception during and after the study
    • Additional Inclusion Criteria - SLE Patients
  • Diagnosis of SLE for at least 6 months, meeting 2019 EULAR/ACR classification criteria
  • Diagnosis of RA for at least 3 months, meeting 2010 ACR/EULAR classification criteria
  • Pregnant or breastfeeding

Who the study is looking for

  • Healthy men and women, 18-55 years of age
  • Body mass index (BMI) between 17.0 and 30.0 kg/m²
  • Good general health, confirmed by medical history, physical exam, vital signs, ECG, and lab testing
  • Willing and able to use highly effective contraception during and after the study

Criteria the registry did not label

  • Phase 1a - Healthy Volunteers (Completed, No Longer Enrolling)

Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (7)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Carewell Arthritis Center
Coordinator of this site? Confirm its status
Apple ValleyUnited StatesRecruiting
Attune Health Research Inc
Coordinator of this site? Confirm its status
Beverly HillsUnited StatesRecruiting
Covina Arthritis Clinic
Coordinator of this site? Confirm its status
CovinaUnited StatesRecruiting
Novamed
Coordinator of this site? Confirm its status
Monterey ParkUnited StatesRecruiting
Southland Arthritis Clinic
Coordinator of this site? Confirm its status
RiversideUnited StatesRecruiting
Southland Arthritis Clinic
Coordinator of this site? Confirm its status
TemeculaUnited StatesRecruiting
Foothill Arthritis Clinic
Coordinator of this site? Confirm its status
TujungaUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.