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A Clinical Trial of TQH3906 Capsules in the Treatment of Active Psoriatic Arthritis

A Randomized, Placebo- and Active Drug-Controlled, Double-Blind, Multicenter, Parallel-Group Phase II Clinical Trial to Evaluate the Efficacy and Safety of TQH3906 Capsules in the Treatment of Active Psoriatic Arthritis

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07406035
Enrollment
156
Registered
2026-02-12
Start date
2026-07-16
Completion date
2027-11-01
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Psoriatic Arthritis

Brief summary

This study is a marketing-oriented clinical trial of TQH3906 Capsules. A total of 156 participants are planned to be enrolled, aiming to evaluate the dose-effect relationship of TQH3906 versus placebo in the treatment of active Psoriatic Arthritis (PsA) at Week 12, with the proportion of participants achieving an American College of Rheumatology 20% (ACR20) Improvement Criteria (ACR20) response at Week 12 as the primary endpoint.

Interventions

TQH3906 is a small-molecule inhibitor of tyrosine kinase.

DRUGTQH3906 Placebo Capsule

Placebo without drug substance.

DRUGTofacitinib Citrate Tablet 5 mg

Tofacitinib Citrate Tablets are Janus kinase (JAK) inhibitors.

Sponsors

Chia Tai Tianqing Pharmaceutical Group Nanjing Shunxin Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Sign a written Informed Consent Form, which must meet the following requirements * Be willing to participate in the study and able to sign the informed consent form; * Be willing and able to complete all study-specific procedures and visits; * PsA trial participant disease characteristics * Aged 18 to 70 years(inclusive); * ii.diagnosed with PsA for at least 3 months prior to screening, and meeting the Classification Criteria for Psoriatic Arthritis (CASPAR) at screening; * Active arthritis at screening and at baseline (Day 1); * Has failed or was intolerant to at least one prior therapy; * If receiving a conventional synthetic Disease-Modifying Antirheumatic Drug (csDMARD), trial participants must be on only one DMARD, which must have been administered for at least 3 months prior to screening, with a stable dose for at least 28 days prior to the first dose; * If using NSAIDs, the dose must have been stable for at least 14 days before the first dose; * If using oral corticosteroids, the dose must have been stable for at least 14 days before the first dose; * Topical treatments for plaque psoriasis must have remained stable for at least 14 days before the first dose; * Female participants of child-bearing potential shall agree to use effective contraception during the study and for 30 days following the last dose, and pregnancy tests at the screening and baseline visits shall be negative; male participants shall agree to use effective contraception during the study and for 30 days following the last dose.

Exclusion criteria

* Presence of conditions other than PsA: * Presence of non-plaque psoriasis (i.e., guttate, inverse, pustular, erythrodermic, or drug-induced psoriasis) at screening or first dose; * Presence of any other autoimmune disease, such as rheumatoid arthritis, systemic lupus erythematosus, etc.; * Presence of active (i.e., currently symptomatic) fibromyalgia; * Other Medical Conditions and Medical History: * Trial participants who are pregnant or breastfeeding; * Evidence of a serious illness/condition or unstable clinical condition, or localized active infection/infectious disease; * Any major surgery performed within 30 days prior to the first dose of study treatment, or any planned surgery during the study; * Cancer or a history of cancer or lymphoproliferative disease within the past 5 years; * New York Heart Association (NYHA) Class III or IV congestive heart failure, or any recent episode of heart failure resulting in NYHA Class III/IV symptoms; or a history of clinically significant ventricular arrhythmia or arrhythmia requiring continuous antiarrhythmic drug therapy; * Uncontrolled hypertension at screening or randomization; * History of thrombotic disease within 24 weeks prior to screening; viii. History of acute coronary syndrome and/or any major cerebrovascular disease within 24 weeks prior to screening; * Current or recent (within 3 months prior to randomization) gastrointestinal disease that may affect absorption of study treatment, including gastrointestinal surgery; * Severe blood loss (\> 500 mL) or blood transfusion within 4 weeks prior to randomization; * Inability to take oral medication; * Inability to undergo venipuncture and/or tolerate venous access; * History of substance abuse with inability to abstain or presence of a psychiatric disorder; * Any other medical, psychiatric, and/or social reason as determined by medical judgment; * Prior and concomitant medications: If the trial participant has a history of biologic use, the

Design outcomes

Primary

MeasureTime frameDescription
American College of Rheumatology 20% Improvement CriteriaDay 1, 15, 29, 57, 85, 113, 141, 169The proportion of trial participants achieving an ACR20 response at Week 12.

Secondary

MeasureTime frameDescription
ACR20 in the subgroup of trial participantsDay 1, 15, 29, 57, 85, 113, 141, 169The proportion of biologic-naive trial participants in the subgroup who achieved ACR20 response.
American College of Rheumatology 50 (ACR50)Day 1, 15, 29, 57, 85, 113, 141, 169ACR50 response rate
American College of Rheumatology 70 (ACR70)Day 1, 15, 29, 57, 85, 113, 141, 169ACR70 response rate
Psoriasis Area and Severity Index (PASI) 75Day 1, 15, 29, 57, 85, 113, 141, 169PASI 75 response rate
Psoriasis Area and Severity Index 90Day 1, 15, 29, 57, 85PASI 90 response rate
Numbers of subjects with incidence and Severity Level of adverse Event (AE), serious Adverse Event (SAE), adverse event leading to study discontinuation, adverse event of special interest (AESI)From the time trial participants sign the informed consent form to 28 days after the last doseNumbers of subjects with incidence rates and Severity Level of Adverse Events (AEs), Serious Adverse Events (SAEs), Adverse Events Leading to Study Discontinuation, and Adverse Events of Special Interest (AESIs)
Time to Peak Concentration (Tmax)Up to day 169Evaluation of the Time to Peak Concentration (Tmax) of TQH3906 in participants with Psoriatic Arthritis after oral administration.
Peak Concentration (Cmax)Up to day 169Evaluation of the Peak Concentration (Cmax) of TQH3906 in Participants with Psoriatic Arthritis After Oral Administration
Plasma Clearance (CL/F)Up to day 169Evaluation of the Plasma Clearance (CL/F) of TQH3906 in Participants with Psoriatic Arthritis After Oral Administration.
Plasma Elimination Half-Life (t₁/₂)Up to day 169Evaluation of the Plasma Elimination Half-Life (t₁/₂) of TQH3906 in Participants with Psoriatic Arthritis After Oral Administration.
Trough Concentration at Steady State (Cmin, ss)Up to day 169Evaluation of the Trough Concentration at Steady State (Cmin, ss) of TQH3906 in Participants with Psoriatic Arthritis After Oral Administration.
Degree of Fluctuation (DF)Up to day 169Evaluation of the Degree of Fluctuation (DF) of TQH3906 in Participants with Psoriatic Arthritis After Oral Administration.
Evaluation of Interleukin (IL) Levels in Participants with Psoriatic Arthritis Treated with TQH3906Blood samples were collected within 1 hour before dosing at Baseline, Weeks 2, 4, 8, 12, 16, 20 and 24.Evaluation of Interleukin (IL) Levels in Participants with Psoriatic Arthritis Treated with TQH3906
Evaluation of Defensin Levels in Participants with Psoriatic Arthritis Treated with TQH3906Blood samples were collected within 1 hour before dosing at Baseline, Weeks 2, 4, 8, 12, 16, 20 and 24.Evaluation of Defensin Levels in Participants with Psoriatic Arthritis Treated with TQH3906

Countries

China

Contacts

CONTACTXiaofeng Zeng, Doctor
xiaofeng.zeng@cstar.org.cn13501069845

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026