ClinicalTrials.gg
Not yet recruitingNCT07362758Updated Jan 23, 2026

Exploratory Study on mRNA Therapy Targeting CD19 for the Treatment of Refractory Autoimmune Diseases

An Early Phase 1 interventional study of in vivo CAR-T drug based on LNP-mRNA in Autoimmune Diseases, sponsored by Xinqiao Hospital of Chongqing. Not yet recruiting. Open to participants aged 14 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-01-23.

Sponsored by Xinqiao Hospital of Chongqing · Early Phase 1, Interventional, and Treatment

Phase
Early Phase 1
Study type
Interventional
Enrollment
47
Allocation
Non-randomized
Ages
14 Years to 70 Years
Sex
All
01

Study summary

Autoimmune diseases, such as immune thrombocytopenia (ITP), immune hemolytic anemia (AIHA), systemic lupus erythematosus (SLE), lupus nephritis (LN), idiopathic inflammatory myopathy (IIM), ulcerative colitis (UC), and systemic sclerosis (SSc), are a type of chronic disabling disease characterized by the immune system mistakenly attacking the body itself, leading to tissue damage and organ dysfunction.Autoimmune hematological diseases, especially difficult to treat autoimmune diseases, are a type of disease that is difficult to treat and has a significant impact on patients' lives. Although there are various treatment methods currently available, there are still many limitations to autoimmune sexually transmitted diseases that aim for long-term remission, and further research and breakthroughs are urgently needed.

The advent of COVID-19 vaccine has brought LNP mRNA technology into the public's view. After years of development, it not only shines brilliantly in COVID-19 vaccine, but also is widely used in the treatment and exploration of cancer, rare diseases and other fields. Lipid nanoparticles (LNP) are currently the most mature non viral delivery platform, capable of protecting mRNA from nuclease degradation, promoting intracellular uptake, and achieving efficient translation in vivo.

The core of LNP-mRNA technology targeting CD19 is to encapsulate the mRNA encoding specific proteins (such as anti-CD19 related proteins) in lipid nanoparticles and deliver them to the body through intravenous or intramuscular injection.

02

Conditions studied

  • Autoimmune Diseases

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03

In context

Autoimmune Diseases

802 studies on the registry are indexed under Autoimmune Diseases; 271 are open to participants now.

This study's planned enrollment of 47 is above the median of 40 across 541 interventional studies indexed under Autoimmune Diseases.

Browse Autoimmune Diseases studies →

Lead sponsor

Xinqiao Hospital of Chongqing is the lead sponsor of 69 studies on the registry; 21 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
14 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 1. Age range of 14-70 years old (including threshold), gender not limited;
  • 2. score>60 points, greater than 6 months;
  • 3. Male and female patients of appropriate age must use reliable methods of before entering the trial, during the research process until 30 days after discontinuation of medication; Reliable contraceptive methods will be determined by the primary researchers or designated personnel;
  • 4. Those who can understand this experiment and have signed the form.
  • 5. Before screening (at baseline), corresponding conditions should be met;
  • 6. Indications for severe, recurrent, or immune related diseases, including immune thrombocytopenia (ITP), hemolytic anemia (AIHA), systemic lupus erythematosus(SLE),systemic sclerosis (SSc) etc., meet the corresponding inclusion criteria; For other types of diseases, researchers will assess whether they meet the inclusion requirements after fully evaluating the risks and benefits based on the patient's treatment needs.

Exclusion criteria

Exclusion Criteria:

  • 1) Study participants who are allergic or hypersensitive to any component of the drug, including those who are allergic to messenger RNA (mRNA) vaccines or other RNA LNP products.
  • 2) Merge any active infections that require antibiotic treatment and have not been controlled for at least one week prior to D1 administration.
  • 3) Malignant tumors diagnosed within the first 2 years of screening are excluded, except for skin basal cell carcinoma, squamous cell carcinoma, or cervical cancer in situ that has been adequately treated.
  • 4) Uncontrolled ischemic heart disease, including unstable angina within the previous 6 months of screening, or evidence of active ischemic heart disease on .
  • 5) (NYHA) grade III-IV heart failure.
  • 6) Study participants with combined active virus (HBV) infection [defined as surface antigen (HBsAg) positive and HBV DNA positive (detected by PCR)].
  • 7) Study participants with combined active virus (HCV) infection (defined as HCV RNA positive (detected by PCR), regardless of anti HCV antibody status).
  • 8) (HIV) infection or history of HIV infection.
  • 9) Study participants who tested positive for Treponema pallidum specific antibodies.
  • 10) There may be active infection of Mycobacterium tuberculosis.
  • 11) Women who are currently pregnant, breastfeeding, or planning to become pregnant.
  • 12) Combining severe or recently (\<2 months) diagnosed medical conditions, as determined by the researchers, may affect the study participants' tolerance to the study drug or their ability to complete the study process.
  • 13) Received attenuated or protein subunit vaccine within 30 days prior to the first study medication.
Terms in these criteria, in plain language(13)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
47 participants (estimated)

Study arms

  • Experimental
    in vivo CAR-T drug based on LNP-mRNA, Escalation dose

    Drug: in vivo CAR-T drug based on LNP-mRNA

  • Experimental
    in vivo CAR-T drug based on LNP-mRNA, Extended dose

    Drug: in vivo CAR-T drug based on LNP-mRNA

Interventions

  • Drugin vivo CAR-T drug based on LNP-mRNA

    in vivo CAR-T drug based on LNP-mRNA

06

What researchers measure

Primary outcomes

  1. The incidence of dose limiting toxicity (DLT)

    Time frame: Within 28 days after the initial treatment

  2. Maximum tolerated dose (MTD) or optimal biological dose (OBD)

    Time frame: Through study completion, an average of 2 years

Secondary outcomes

  1. Efficacy evaluation: degree of disease remission

    Time frame: Within 24 weeks after the initial treatment

  2. Pharmacodynamic characteristics: B cell clearance rate

    Time frame: Within at least 28 days after the initial treatment

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2026; primary completion for Jan 2028, 24 months later.

Of 94 phase 1 interventional studies under Autoimmune Diseases, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 36. This study's planned 24 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 2, 2026
First posted
Jan 23, 2026
StartEst.
Jan 1, 2026
Primary completionEst.
Jan 1, 2028
CompletionEst.
Dec 31, 2028
Last update
Jan 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07362758
Lead sponsor
Xinqiao Hospital of Chongqing
Responsible party
Xi Zhang, MD (Professor, Xinqiao Hospital of Chongqing) — Principal investigator
First posted
Jan 23, 2026
Start date
Jan 1, 2026 (estimated)
Primary completion
Jan 1, 2028 (estimated)
Completion
Dec 31, 2028 (estimated)
Last update
Jan 23, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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