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Generalized Pustular PsoriasisPhase 1NCT06433531

A Clinical Study of TQH2929 Injection in Treatment With Generalized Pustular Psoriasis (GPP)

A Phase 1 study testing TQH2929 Injection in people with Generalized Pustular Psoriasis, run by Chia Tai Tianqing Pharmaceutical Group Nanjing Shunxin Pharmaceutical Co., Ltd. at 7 sites in China.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Generalized Pustular Psoriasis
What is being tested?
TQH2929 Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
9 participants
Where
7 sitesChina
Study dates
19 Jun 2024to Dec 2025
Phase
Phase 1
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults aged between 18 and 75 years (inclusive),both male and female;
  • A known and documented history of Generalized Pustular Psoriasis diagnosed with European Rare and Severe Psoriasis Expert Network (ERASPEN) criteria in 2017;
  • Presenting with a moderate-severe flare of Generalized Pustular Psoriasis (GPP)
  • Body mass index (BMI) within 18~36 kg/m2;
  • Major organ function is good;
  • Patients must be able to understand and sign a written informed consent document;
  • Patients must be able to complete study-related procedures and questionnaires;
  • Female and male subjects of childbearing age should agree to use contraceptive measures during the study period and within 6 months after the end of the study; Female subjects need to serum pregnancy pregnancy test within 7 days before study enrollment.

Who cannot join

  • Patients with primary plaque psoriasis vulgaris with pustules that are restricted to psoriatic plaques;
  • Immediate life-threatening flare of Generalized Pustular Psoriasis or requiring intensive care treatment, according, to the judgment of the investigator;
  • 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);
  • History of human immunodeficiency virus (HIV) infection, or positive HIV serological results at screening during screening;
  • Positive antibodies to treponema pallidum during screening;
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  • 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 period;
  • History of herpes zoster infection within 2 months prior to baseline;
  • 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 allergies;
  • Use of the following medications within the prescribed time:
  • Receive topical drugs for the treatment of skin diseases within 1 weeks prior to baseline;
  • Receive systemic therapy within 4 weeks prior to baseline;
  • Receive regular phototherapy within 4 weeks prior to baseline;
  • Within 12 weeks prior to baseline, receive live (attenuated) vaccine;
  • Receive antibiotics and antivirals within 4 weeks prior to baseline.
  • 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.

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

China7 sites
  • Peking University First Hospital

    Beijing, Beijing Municipality, 100871

  • Second People's Hospital of Chengdu

    Chengdu, Sichuan, 610052

  • Dermatology Hospital of Southern Medical Universitye

    Guangzhou, Guangdong, 510091

  • The Second Affiliated Hospital Zhejiang University School of Medicine

    Hangzhou, Zhejiang, 310000

  • The First Hospital of China Medical University

    Shenyang, Liaoning, 110000

  • The First Hospital of Hebei Medical University

    Shijiazhuang, Hebei, 050000

  • The Second Hospital of Hebei Medical University

    Shijiazhuang, Hebei, 050000

Other trials in China

About this study

Official title: Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Profile, and Efficacy of TQH2929 in Healthy Adult Subjects and Psoriasis Subjects

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.

Being tested
TQH2929 Injection
Medical subject headings
Psoriasis

What participants receive

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

  • TQH2929 InjectionDrug

    TQH2929 injection is a humanized monoclonal antibody that interfering with the signal cascade.

Study groups in NCT06433531
Study groupRoleWhat they receive
TQH2929 Injection (900 mg)ExperimentalTQH2929 Injection is administered as a single dose.
Receives: Drug: TQH2929 Injection

What is being measured

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

  1. Adverse events (AE)

    The occurrence of all adverse events (AE).

    Measured: From the first dose to 113 days after the last dose

  2. Serious adverse events (SAE)

    The occurrence of all serious adverse events (SAE).

    Measured: From the first dose to 113 days after the last dose

  3. Treatment-related adverse events(TRAE)

    The occurrence of all treatment-related adverse events(TRAE).

    Measured: From the first dose to 113 days after the last dose

  4. Clinical laboratory abnormalities

    Incidence of participants with clinical laboratory abnormalities

    Measured: From the first dose to 113 days after the last dose

Secondary outcomes (15)
  1. Time to reach maximum observed serum concentration (Tmax)

    Time to reach maximum (peak) serum concentration following drug administration.

    Measured: 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

  2. Maximum serum concentration (Cmax)

    The Cmax is the maximum observed serum concentration of study drug.

    Measured: 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

  3. 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.

    Measured: 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

  4. 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.

    Measured: 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

  5. Apparent volume of distribution (Vd/F)

    Apparent volume of distribution of the TQH2929 Injection in serum.

    Measured: 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

  6. Apparent clearance (CL/F)

    Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the body.

    Measured: 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

  7. 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.

    Measured: 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

  8. 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.

    Measured: Single dose: within 1 hour (pre-dose), Days 15, 57, 85, and 113 post-dose

  9. 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.

    Measured: 1, 2 and 4 weeks post-dose

  10. 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).

    Measured: Baseline and 1,2,4 weeks post-dose

  11. 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.

    Measured: Baseline and 1,2,4 weeks post-dose

  12. 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.

    Measured: Baseline and 1,2,4 weeks post-dose

  13. 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.

    Measured: Baseline and 1,2,4 weeks post-dose

  14. 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.

    Measured: 1,2,4 weeks post-dose

  15. 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.

    Measured: Baseline and 1,2,4 weeks post-dose.

Timeline

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

  1. First posted29 May 2024
  2. Study start19 Jun 2024
  3. Primary completion8 Jul 2025
  4. Study completionDec 2025 (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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06433531
Sponsor's protocol ID
TQH2929-I-01 (Ib)
Status last verified
Jul 2025
First submitted
23 May 2024
Last updated
30 Jul 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing TQH2929 Injection in people with Generalized Pustular Psoriasis, run by Chia Tai Tianqing Pharmaceutical Group Nanjing Shunxin Pharmaceutical Co., Ltd. at 7 sites in China.

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 8 inclusion and 27 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: under way, not looking for participants, as of the sponsor's last update on 30 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Adverse events (AE) (time frame: From the first dose to 113 days after the last dose). The study lists 4 primary outcomes in all. 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 30 Jul 2025.

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