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Rheumatoid ArthritsPhase 3NCT07856511

A Study to Evaluate the Efficacy and Safety of Proximod in Patients With Rheumatoid Arthritis

A Phase 3 study testing Proximod in people with Rheumatoid Arthrits, run by Jiankuan (Suzhou) Biotechnology Company Limited.

Not yet recruiting

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

Official record
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Trial summary

This study is to evaluate the efficacy and safety of different doses of proximod in moderate-to-severe active rheumatoid arthritis subjects with inadequate response or intolerance to bDMARDs and/or tsDMARDs Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Rheumatoid Arthrits
What is being tested?
Proximod
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
590 participants
Where
No sites listed yet
Study dates
15 Oct 2026to 30 Sep 2028
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • According to the 2010 classification criteria for rheumatoid arthritis (RA) of the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR), the diagnosis is made for RA and the disease duration at the screening visit is at least 3 months.
  • Moderate to severe RA defined by 6 or more tender joints, 6 or more swollen joints (68- or 66-joint count), and an ESR of 28 mm/h or greater or hsCRP > 1.2 × upper limit of laboratory normal range (ULN).
  • Before the first administration, the participants had received MTX treatment for at least 3 consecutive months, with a stable dose for at least 4 weeks (oral or parenteral MTX [10-25 mg/week; or for those who were intolerant to the maximum dose of ≥10 mg/week, a dose of ≥7.5 mg/week could be used]).
  • The participants had previously received at least one form of bDMARDs and/or tsDMARDs, but the treatment was either ineffective or they experienced intolerability. Ineffectiveness is defined as: After continuous treatment with the same bDMARD or tsDMARD for at least 12 weeks, there is still persistent or recurrent disease activity of rheumatoid arthritis, or the initial clinical improvement achieved during the treatment subsequently weakens or disappears, and the study investigator determines that the expected treatment goal has not been reached, thus requiring discontinuation or replacement of the drug. Intolerance is defined as: Those who have actually received treatment with a certain bDMARD or tsDMARD in the past and permanently discontinued the treatment due to recorded adverse events related to the drug, abnormal and clinically significant laboratory tests, or other toxicities, and the study investigator determines that continued use or re-use of the drug is not appropriate. Those who discontinue the treatment due to intolerance do not require a treatment duration of at least 12 weeks.
  • Participants used a stable dose of oral/inhaled prednisone (≤ 10 mg/day) or an equivalent dose of glucocorticoids 4 weeks before the first administration of the study drug, and were expected to continue using the original stable dose during the trial; or they had stopped using oral/inhaled glucocorticoids ≥ 2 weeks before the first administration.
  • Participants used a stable dose of non-steroidal anti-inflammatory drugs or acetaminophen/paracetamol 4 weeks before the first administration of the study drug, and were expected to continue taking the original stable dose during the trial; or they had stopped using non-steroidal anti-inflammatory drugs or acetaminophen/paracetamol for ≥ 5 half-lives/2 days (whichever was the longer period).
  • During the course of the study and within 9 months after the last administration of the study drug, all female and male participants of reproductive age must use appropriate contraceptive measures.

Who cannot join

  • Known or suspected allergies to the study drug or any component of the study drug.
  • The ACR functional classification is level IV.
  • Those who have been bedridden for a long time or are confined to a wheelchair for a long period of time.
  • The participants plan to undergo joint surgery or major surgeries during the treatment period.
  • During the screening, if the participant's forced expiratory volume in one second (FEV1) or forced vital capacity (FVC) was lower than 70% of the predicted value, and the FEV1/FVC ratio was less than 0.70;
  • During the 4 weeks prior to the first administration of the drug, the following medications or treatments were used: Glucocorticoids: Administration can be through intra-articular injection, at trigger points or tender points, within the joint capsule, within the tendon sheath, or by intramuscular or intravenous injection. Other DMARDs except MTX: including but not limited to minocycline, penicillamine, sulfasalazine, hydroxychloroquine, chloroquine, azathioprine, gold preparations, cyclophosphamide, Tripterygium wilfordii(Leigongteng), ilarimod. Immunosuppressive or immunomodulatory drugs: including but not limited to tacrolimus, cyclosporine, Pavlin(Total Glucosides of Paeony Capsules), mycophenolate mofetil, 6-mercaptopurine, etc. Interferons: including but not limited to interferon, intron A(Interferon alfa-2b injection), Rebetron, etc.; Imaging agents: technetium [99Tc] methylenediphosphonate injection; Opioid drugs: including but not limited to oxycodone, oxymorphone, fentanyl, levorphanol, buprenorphine, methadone, hydrocodone, morphine, pethidine; Oral traditional Chinese medicines for treating RA and other inflammatory response diseases (Appendix 9. Traditional Chinese patent medicines related to RA). Received live vaccines or attenuated live vaccines. Undergone major surgery.
Show all 23Show fewer
  • Before the first administration of the study drug, any of the following drugs or treatments were used:
  • Received integrin αV antibody or cell depletion therapy within 5 half-lives or within 3 months (whichever is longer).
  • Used drugs that interact with the study drug within 5 half-lives or within 4 weeks (whichever is longer). See Table 12-3.
  • Received JAK inhibitors and/or S1P receptor agonists within 5 half-lives or within 2 weeks (whichever is longer).
  • Took oral or intravenous anti-infective drugs within 14 days.
  • Have used any type of leukopoietic agents within the past 14 days.
  • Used leflunomide within 12 weeks; if standard colestyramine (8g, 3 times daily) is used to elute leflunomide, it needs to be eluted for 11 days, and the eluting drug should be discontinued for ≥ 2 weeks before the first administration of the study drug.
  • The withdrawal requirements for biologic disease-modifying antirheumatic drugs (bDMARDs) are shown in Table 12-4.
  • Within 3 months prior to randomization:
  • Has participated in any interventional clinical trials involving drugs or medical devices.
  • Has donated blood and the volume of donation was ≥ 400 mL, or has received blood transfusion.
  • Alcohol abuse (i.e., consumption of more than 14 standard units per week [a standard unit containing 14 g of alcohol, such as 360 mL of beer or 45 mL of 40% liquor or 150 mL of wine]) or substance abuse was present at screening or had a history of alcohol abuse or substance abuse within 6 months before randomization.
  • Patients with active tuberculosis, positive γ-interferon release assay (T-SPOT.TB or other γ-interferon release assay equivalent indicators) by chest CT examination during screening.
  • Potential malignancy was present at the time of screening.
  • Ophthalmologic studies, including fundus examination and optical coherence tomography, were abnormal and clinically relevant at screening, especially for participants with macular disorders and maculopathy.
  • Participants who are pregnant or breastfeeding, or those who plan to become pregnant or breastfeed during the course of the study or within 9 months after the last administration of the drug.
  • The investigator considered that there were any other factors that might affect the conduct of the study or the evaluation of outcomes.

About this study

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled, Phase Ⅲ Clinical Study to Evaluate the Efficacy and Safety of Proximod Tablets in Moderate-to-Severe Active Rheumatoid Arthritis Subjects With Inadequate Response or Intolerance to bDMARDs and/or tsDMARDs

This study is to evaluate the efficacy and safety of different doses of proximod in moderate-to-severe active rheumatoid arthritis subjects with inadequate response or intolerance to bDMARDs and/or tsDMARDs

Read the detailed description

This study is divided into two phases and planned to recruit 590 patients. Phase I: To evaluate the efficacy of different doses of proximod tablets compared to placebo in patients with moderate to severe active rheumatoid arthritis who have poor response or intolerance to bDMARDs and/or tsDMARDs. After the last administration and efficacy assessment (Week 16) of the core treatment period for the last participant, the primary endpoint analysis of Phase I will be conducted to determine the optimal dose for Phase II. Phase II: Using ACR20 as the primary efficacy indicator, to confirm that proximod tablets are more effective than placebo in patients with moderate to severe active rheumatoid arthritis who have poor response or intolerance to bDMARDs and/or tsDMARDs.

Being tested
Placebo, Proximod

What participants receive

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

  • PlaceboDrug

    The placebo group will take drugs orally for 16 weeks, and then were randomly assigned to proximod dose 1 and proximod dose 2 for 36 weeks, in the meanwhile, proximod dose 1 group and proximod dose 2 group will continue taking drugs for the whole 52 weeks.

  • ProximodDrug

    The placebo group will take drugs orally for 16 weeks, and then were randomly assigned to proximod dose 1 and proximod dose 2 for 36 weeks, in the meanwhile, proximod dose 1 group and proximod dose 2 group will continue taking drugs for the whole 52 weeks.

  • ProximodDrug

    The placebo group will take drugs orally for 16 weeks, and then were randomly assigned to proximod dose 1 and proximod dose 2 for 36 weeks, in the meanwhile, proximod dose 1 group and proximod dose 2 group will continue taking drugs for the whole 52 weeks.

  • PlaceboDrug

    The placebo group will take drugs orally for 16 weeks, and then switch to proximod for 36 weeks, in the meanwhile, proximod group will continue taking drugs for the whole 52 weeks.

  • ProximodDrug

    The placebo group will take drugs orally for 16 weeks, and then switch to proximod for 36 weeks, in the meanwhile, proximod group will continue taking drugs for the whole 52 weeks.

Study groups in NCT07856511
Study groupRoleWhat they receive
Phase I: PlaceboPlacebo comparatorPlacebo for 16 weeks + Proximod tablets dose 1/dose 2 for 36 weeks
Receives: Drug: Placebo
Phase I: Proximod dose 1ExperimentalProximod tablets dose 1 for 52 weeks
Receives: Drug: Proximod
Phase I: Proximod dose 2ExperimentalProximod tablets dose 2 for 52 weeks
Receives: Drug: Proximod
Phase II: PlaceboPlacebo comparatorPlacebo for 16 weeks + Proximod tablets dose 1 or dose 2 for 36 weeks
Receives: Drug: Placebo
Phase II: ProximodExperimentalProximod tablets dose 1 or dose 2 for 52 weeks
Receives: Drug: Proximod

What is being measured

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

  1. ACR20 response rate at week 16(Phase I and Phase II)

    Response rate of 20% improvement in American College of Rheumatology (ACR20) criteria at week 16

    Measured: Week 16

Secondary outcomes (16)
  1. ACR20 response rate(Phase I and Phase II)

    Response rate of 20% improvement in American College of Rheumatology (ACR20) criteria

    Measured: Week 2, Week 4, Week 8, week 12, Week 20, Week 24, Week 32, week 40, week 48, week 52 and week 60

  2. ACR50 response rate(Phase I and Phase II)

    Response rate of 50% improvement in American College of Rheumatology (ACR50) criteria

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  3. ACR70 response rate(Phase I and Phase II)

    Response rate of 70% improvement in American College of Rheumatology (ACR70) criteria

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  4. Change from baseline in SDAI score(Phase I and Phase II)

    Change from baseline in SDAI(Simplified Disease Activity Index) score

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  5. Change from baseline in CDAI score(Phase I and Phase II)

    Change from baseline in CDAI(Clinical Disease Activity Index) score(Phase I and Phase II)

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  6. Change from baseline in HAQ-DI score(Phase I and Phase II)

    Change from baseline in Health Assessment Questionnaire Disability Index (HAQ-DI) score

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  7. Change from baseline in DAS28-CRP(Phase I and Phase II)

    Change from baseline in DAS28-CRP(Disease Activity Score for 28-joint counts based on the c-reaction protein)

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  8. Change from baseline in DAS28-ESR(Phase I and Phase II)

    Change from baseline in DAS28-ESR(Disease Activity Score for 28-joint counts based on the erythrocyte sedimentation rate)

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  9. DAS28-CRP<2.6 or≤3.2 proportion(Phase I and Phase II)

    Disease Activity Score for 28-joint counts based on the c-reaction protein (DAS28-CRP) of less than 2.6 or equal to and less than 3.2

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  10. DAS28-ESR<2.6 or≤3.2 proportion(Phase I and Phase II)

    Disease Activity Score for 28-joint counts based on the erythrocyte sedimentation rate) of less than 2.6 or equal to and less than 3.2

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  11. The proportion of HAQ improvement(Phase I and Phase II)

    The proportion of patients whose HAQ-DI (health assessment questionnaire disability index

    ) score decreased by at least 0.22 points and 0.3 points compared to the baseline level

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  12. The proportion of achieving low disease activity as measured by CDAI(Phase I and Phase II)

    The proportion of patients achieving a low disease activity score of ≤10 or ≤2.8 in the CDAI(Clinical Disease Activity Index) assessment

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  13. The proportion of participants with SDAI ≤ 11.0 or ≤ 3.3(Phase I and Phase II)

    The proportion of participants with SDAI(Simplified Disease Activity Index) ≤ 11.0 or ≤ 3.3

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  14. Assessment of morning stiffness changes and pain relative to baseline(Phase I and Phase II)

    The assessment of morning stiffness changes (duration) and pain (using the Visual Analogue Scale [VAS]) relative to the baseline

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  15. The changes in RF and anti-CCP relative to the baseline(Phase I and Phase II)

    The changes in rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) antibodies relative to the baseline

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

  16. Changes in D-dimer, hemoglobin, fibrinogen, and platelets relative to the baseline(Phase I and Phase II)

    Changes in D-dimer, hemoglobin, fibrinogen, and platelets relative to the baseline;

    Measured: Week 2, Week 4, Week 8, week 12, week 16, Week 20, Week 24, Week 32, week 40, week 48, week 52, and week 60

Timeline

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

  1. First posted2 Oct 2026
  2. Study start15 Oct 2026 (estimated)
  3. Primary completion1 Apr 2027 (estimated)
  4. Study completion30 Sep 2028 (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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
590 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07856511
Sponsor's protocol ID
LJR001-RA-202601
Status last verified
Sep 2026
First submitted
28 Sep 2026
Last updated
2 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 3 study testing Proximod in people with Rheumatoid Arthrits, run by Jiankuan (Suzhou) Biotechnology Company Limited.

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 23 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 2 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ACR20 response rate at week 16(Phase I and Phase II) (time frame: Week 16). 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 2 Oct 2026.

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