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This study is a multicenter, single-group, open-label study to evaluate the safety and tolerability of TQH2929 injection at a dose of 900mg in adult subjects with active Generalized Pustular Psoriasis (GPP), and to preliminarily evaluate the efficacy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| TQH2929 Injection (900 mg) | Experimental | TQH2929 Injection is administered as a single dose. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| TQH2929 Injection | Drug | TQH2929 injection is a humanized monoclonal antibody that interfering with the signal cascade. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Adverse events (AE) | The occurrence of all adverse events (AE). | From the first dose to 113 days after the last dose |
| Serious adverse events (SAE) | The occurrence of all serious adverse events (SAE). | From the first dose to 113 days after the last dose |
| Treatment-related adverse events(TRAE) | The occurrence of all treatment-related adverse events(TRAE). | From the first dose to 113 days after the last dose |
| Clinical laboratory abnormalities | Incidence of participants with clinical laboratory abnormalities | From the first dose to 113 days after the last dose |
| Measure | Description | Time Frame |
|---|---|---|
| Time to reach maximum observed serum concentration (Tmax) | Time to reach maximum (peak) serum concentration following drug administration. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Maximum serum concentration (Cmax) |
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Inclusion Criteria:
Exclusion Criteria:
Patients with primary plaque psoriasis vulgaris with pustules that are restricted to psoriatic plaquesï¼›
Immediate life-threatening flare of Generalized Pustular Psoriasis or requiring intensive care treatment, according, to the judgment of the investigatorï¼›
Computed Tomography of the chest shows active or occult tuberculosis or a history of contact with an open tuberculosis (TB) subject within the past 6 months. Subjects positive for tuber closes spot(T-SPOT) (or other tuberculosis diagnostic test) result;
Active hepatitis during the screening period, or positive for hepatitis B surface antigen (HBsAg)ï¼›
History of human immunodeficiency virus (HIV) infection, or positive HIV serological results at screening during screeningï¼›
Positive antibodies to treponema pallidum during screeningï¼›
History of serious infection leading to hospitalization or intravenous infusion of antibiotics or antiviral therapy within 3 months prior to baseline;
Active systemic infections requiring systemic antibiotics or systemic antiviral therapy within 4 weeks prior to baseline;
History of opportunistic infection and parasitic infection within 6 months prior to the screening periodï¼›
History of herpes zoster infection within 2 months prior to baselineï¼›
Subject has known or suspected autoimmune disease;
Receive major surgery within 4 weeks prior to the first dose;
Subjects with any type of active malignancy or a history of malignancy (except cervical cancer or non-metastatic cutaneous squamous cell carcinoma, basal cell carcinoma and papillary thyroid carcinoma) that has been cured for more than 5 years prior to the screening period;
Subjects have history of significant drug allergiesï¼›
Use of the following medications within the prescribed time:
People who are alcoholic, drug addicts, and known drug dependents;
Pregnant or Breasting feeding subject;
Received a blood transfusion within 4 weeks prior to the first dose;
Subject is unable to tolerate intravenous infusion administration;
During the period of participation in this study, participants had planned surgical procedures;
Have participated in clinical trials of other drugs or medical devices within 4 weeks prior to baseline;
In the judgment of the investigator or sponsoring medical auditor, it is believed that there are any medical or psychiatric symptoms that put the subject at risk, interfere with participation in the study, or interfere with the interpretation of the results of the study.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Peking University First Hospital | Beijing | Beijing Municipality | 100871 | China | ||
| Dermatology Hospital of Southern Medical Universitye |
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The Cmax is the maximum observed serum concentration of study drug. |
| Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity]) | Area under the concentration-time curve of the TQH2929 Injection in serum over the time interval from 0 extrapolated to infinity. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Area Under the Concentration-Time Curve From 0 to Last Observation (AUC [0-t]) | Area under the concentration-time curve of the TQH2929 Injection in serum over the time interval from 0 extrapolated to the last quantifiable data point. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Apparent volume of distribution (Vd/F) | Apparent volume of distribution of the TQH2929 Injection in serum. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Apparent clearance (CL/F) | Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the body. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Half-life (t1/2) | Terminal phase elimination half-life (T1/2) is the time required for half of the drug to be eliminated from the serum. | Single dose: within 1 hour (pre-dose), 0, 0.5, 1, 2, 6, 12, 24, 48, 72, 168, 336, 504, 672, 840, 1008, 1344, 1680, 2016, 2353, 2688 hours post-dose |
| Anti-drug antibodies (ADA) | A participant was considered ADA-positive across the study if they had a positive reading at any time point during the study. | Single dose: within 1 hour (pre-dose), Days 15, 57, 85, and 113 post-dose |
| Proportion of patients with a generalized pustular psoriasis physician global assessment (GPPGA) pustulation subscore of 0/1 at Weeks 1,2,4 | The Generalized Pustular Psoriasis Physician Global Assessment (GPPGA) relies on clinical assessment of the Generalized Pustular Psoriasis (GPP) patient's skin presentation. The investigator (or qualified site personnel) scored the erythema, pustules, and scaling of all GPP lesions from 0 to 4. A lower GPPGA pustulation subscore indicates a better outcome. A GPPGA pustulation subscore of 0 means no visible pustules. The proportion of patients who achieved a GPPGA pustulation subscore of 0/1 at Week 1,2,4 is reported. | 1, 2 and 4 weeks post-dose |
| Percent change in generalized pustular psoriasis area and severity index (GPPASI) from baseline at weeks 1,2,4 | GPPASI provides a numeric scoring for a patient's overall Generalized Pustular Psoriasis (GPP) disease state, ranging from 0 (no disease) to 72 (worse disease state). It is a linear combination of percent of surface area of skin affected by erythema, pustules, and scaling and the severity of erythema, pustules, and scaling (desquamation) over 4 body regions (head, trunk, upper limbs and lower limbs). | Baseline and 1,2,4 weeks post-dose |
| Proportion of patients with a generalized pustular psoriasis physician global assessment (GPPGA) score of 0 or 1 at week 1 | GPPGA relied on clinical assessment of the Generalized Pustular Psoriasis (GPP) patient's skin presentation. The GPPGA total score was calculated by taking the mean of the erythema subscore, pustules subscore and scaling/crusting subscore. The severity of each subscore was assessed using a 5 point scale score ranging from 0 to 4 (0=clear, 1=almost clear, 2=mild, 3=moderate, 4=severe). A lower GPPGA score indicates a better outcome, with 0 being clear and 1 being almost clear. The proportion of patients with a GPPGA score of 0 or 1 at Week 1,2,4 is reported. | Baseline and 1,2,4 weeks post-dose |
| Change in generalized pustular psoriasis area and severity index (GPPASI) from baseline at week 1,2,4. | Generalized Pustular Psoriasis Area and Severity Index (GPPASI) provides a numeric scoring for a patient's overall Generalized Pustular Psoriasis (GPP) disease state, ranging from 0 to 72. It is a linear combination of percent of surface area of skin affected by erythema, pustules, and scaling and the severity of erythema, pustules, and scaling (desquamation) over 4 body regions (head, trunk, upper limbs and lower limbs). A higher score indicates a worse disease state, while a score of 0 indicates no disease. | Baseline and 1,2,4 weeks post-dose |
| Change from baseline in psoriasis symptom scale (PSS) score at week 1,2,4 | PSS is a 4-item patient-reported outcome instrument that assesses the severity of psoriasis symptoms in moderate to severe psoriasis patients. The symptoms included are: pain, redness, itching, and burning. The symptom severity was assessed using a 5 point scale ranging from 0 to 4 where 0=none, 1=mild, 2=moderate, 3=severe, 4=very severe. The symptom scores are added to an unweighted total score (range: 0 to 16). A lower PSS score indicates a better outcome. | Baseline and 1,2,4 weeks post-dose |
| Proportion of patients with psoriasis symptom scale (PSS) score of 0 at week 1,2,4. | PSS is a 4-item patient-reported outcome instrument that assesses the severity of psoriasis symptoms in moderate to severe psoriasis patients. The symptoms included are: pain, redness, itching, and burning. The symptom severity was assessed using a 5 point scale ranging from 0 to 4 where 0=none, 1=mild, 2=moderate, 3=severe, 4=very severe. | 1,2,4 weeks post-dose |
| Change from baseline in dermatology life quality index (DLQI) score at weeks 1,2,4 | The DLQI is a 10-item questionnaire that asks participants to evaluate the degree that their skin problem has affected their quality of life in the last week in the following 6 aspects: symptoms and feelings, daily activities, leisure, work or school activities, personal relationships and treatment related feelings. Participants answer the 10 questions on a scale from 0 (not at all) to 3 (very much). The DLQI is calculated by summing the scores of the 10 questions, resulting in a maximum of 30 and a minimum of 0 with higher scores indicating more impaired quality of life. A negative change from Baseline indicates improvement. | Baseline and 1,2,4 weeks post-dose. |
| Guangzhou |
| Guangdong |
| 510091 |
| China |
| The First Hospital of Hebei Medical University | Shijiazhuang | Hebei | 050000 | China |
| The Second Hospital of Hebei Medical University | Shijiazhuang | Hebei | 050000 | China |
| The First Hospital of China Medical University | Shenyang | Liaoning | 110000 | China |
| Second People's Hospital of Chengdu | Chengdu | Sichuan | 610052 | China |
| The Second Affiliated Hospital Zhejiang University School of Medicine | Hangzhou | Zhejiang | 310000 | China |
| ID | Term |
|---|---|
| D011565 | Psoriasis |
| ID | Term |
|---|---|
| D017444 | Skin Diseases, Papulosquamous |
| D012871 | Skin Diseases |
| D017437 | Skin and Connective Tissue Diseases |
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