New oral pill HPP737 takes on psoriasis in Head-to-Head trial
NCT ID NCT07712731
First seen Jul 17, 2026 · Last updated Aug 04, 2026 · Updated 2 times
Summary
This Phase 3 trial tests whether an experimental oral drug, HPP737, can reduce psoriasis severity in adults with moderate-to-severe plaque psoriasis. Participants take HPP737 or an active control drug daily for 16 weeks. Researchers measure skin clearance using standard scores like PASI and sPGA to compare effectiveness and monitor safety.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- an experimental oral drug called HPP737
- What this could lead to
- If successful, HPP737 could offer a new oral treatment option for people with moderate-to-severe plaque psoriasis.
- What could go wrong
- This is a Phase 3 trial, but results may not show superiority over existing treatments. Side effects and long-term safety are still being evaluated.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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607 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Apr 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Subjects must voluntarily sign the informed consent form prior to the initiation of any trial-related procedures, be able to communicate effectively with the investigators, and understand and comply with the requirements of this trial; * Age at the time of signing the informed consent form: age ≥18 years, regardless of sex; * Clinically diagnosed patients with stable plaque psoriasis (Zhendingxing Banquzhuang Yinxie Bing), with a psoriasis history of ≥6 months before randomization; * Diagnosed with moderate to severe plaque psoriasis and meeting the following criteria at screening: 1) PASI (Psoriasis Area and Severity Index), score ≥10; and sPGA (Static Physician's Global Assessment) score ≥3; and BSA (Body Surface Area) score ≥10% * Body Mass Index (BMI): 18 kg/m2 ≤ BMI ≤ 35 kg/m2. Exclusion Criteria: * Presence of other forms of psoriasis (e.g., guttate psoriasis, pustular psoriasis, erythrodermic psoriasis) diagnosed at screening, in addition to chronic plaque psoriasis; * Patients with drug-induced psoriasis (including but not limited to newly onset or exacerbated psoriasis caused by β-blockers \[beta-receptor blockers\], calcium channel blockers, or lithium preparations) * Subjects with other skin diseases that may interfere with clinical assessment (such as severe bacterial, fungal, or viral skin infections), chronic diarrhea, severe gastrointestinal diseases (such as active peptic ulcer, gastrointestinal tract disorders, etc.), or a history of inflammatory bowel disease (Crohn's disease, ulcerative colitis, etc.), or other active autoimmune inflammatory diseases (mixed connective tissue disease, idiopathic inflammatory myopathy, etc.); * History of congenital or acquired immunodeficiency; * Severe infection or systemic infection within 4 weeks prior to randomization, requiring oral and/or intravenous anti-infective therapy; or hospitalization due to infection; * Medical history, symptoms, and examination results during screening indicating that the subject has active tuberculosis (TB); Note: Subjects with a negative T-cell test for Mycobacterium tuberculosis infection (T-SPOT test) during the screening period are eligible for inclusion in this study. Subjects with a positive T-SPOT result during the screening period are required to undergo TB-related clinical evaluation (TB-related clinical evaluations conducted within 12 weeks prior to randomization may be directly utilized for assessment). If the TB-related clinical evaluation confirms active tuberculosis, the subject shall not be enrolled in this study; if the evaluation confirms non-active tuberculosis, the subject may be included. If the study center is unable to perform the T-SPOT test, an interferon-gamma release assay (IGRA) may also be used for TB screening, and the handling of IGRA results should follow the same procedures as for the T-SPOT test. * History of moderate to severe heart failure (New York Heart Association \[NYHA\] functional classification ≥ Class III), or occurrence of cardiovascular or cerebrovascular events or other serious events within 3 months prior to randomization, as judged by the investigator to be unsuitable for participation in this clinical trial; * History of malignancy in any organ system within 5 years prior to randomization, except for malignancies with low risk of metastasis and death, such as adequately treated carcinoma in situ, basal cell carcinoma, or squamous cell carcinoma of the skin, etc.; * History of depression and/or suicidal ideation or any suicidal behavior at screening or baseline based on Columbia-Suicide Severity Rating Scale (C-SSRS) assessment (Appendix 6). If the subject answers "Yes" to any question on the C-SSRS questionnaire, or if the investigator assesses clinical risk, these subjects will be excluded; * Presence of clinically severe, progressive, or uncontrolled diseases during the screening period, including but not limited to the respiratory system, cardiovascular system, endocrine system, hematological system, skeletal system, and nervous system, where participation in the trial may pose unacceptable risk to the subject or interfere with interpretation of data, as assessed by the investigator; * Use of the following psoriasis (Yinxie Bing) treatments/medications prior to randomization: 1) Within 2 weeks prior to randomization, the subject has received topical treatment for psoriasis, such as glucocorticoids, vitamin D3 derivatives, or retinoids. However, subjects are permitted to use the following topical treatments: non-medicated shampoos and emollients (i.e., those not containing glucocorticoids or vitamin D3 derivatives). Within 4 weeks prior to randomization, the subject has received phototherapy/photochemotherapy (including but not limited to psoralen and ultraviolet A (PUVA) phototherapy, ultraviolet B (UVB)) or non-biologic systemic therapies (including but not limited to systemic glucocorticoids, leflunomide, cyclophosphamide, azathioprine, methotrexate, cyclosporin, retinoids, mycophenolate mofetil, traditional Chinese medicines for the treatment of psoriasis, or other small-molecule targeted agents for the treatment of psoriasis). Tumor necrosis factor-α (TNF-α) antagonists: (1) Use of a TNF-α antagonist (e.g., adalimumab, infliximab, golimumab, etanercept, certolizumab pegol) within a specified period prior to randomization (such as within 12 weeks before randomization); (2) or history of prior use of two or more TNF-α antagonists before randomization; 4) Within 24 weeks prior to randomization, the subject has used other biologic agents, including but not limited to IL-17 inhibitors, IL-23 inhibitors, or IL-12/IL-23 inhibitor class drugs. * Receipt of a live attenuated vaccine within 12 weeks prior to randomization, or planned receipt of a live attenuated vaccine during the trial period; * Subjects who previously had poor efficacy with other PDE4 (phosphodiesterase-4) inhibitors (such as apremilast, Hemay005, etc.) * Participation in and receipt of any interventional clinical trial treatment within 1 month prior to randomization;
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Affiliated Central Hospital of Shenyang Medical College
Shengyang, China
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Affiliated Hospital of Chengde Medical College
Chengde, China
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Affiliated Hospital of Guilin Medical University
Guilin, China
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Affiliated Hospital of Jiangsu University
Wuxi, China
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Affiliated Hospital of Tianjin Academy of Traditional Chinese Medicine
Tianjin, China
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Affiliated Hospital of Zunyi Medical University
Zunyi, China
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Beijing Friendship Hospital, Capital Medical University
Beijing, China
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Beijing Tongren Hospital, Capital Medical University
Beijing, China
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Beijing Tsinghua Changgung Hospital
Beijing, China
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Cangzhou People's Hospital
Cangzhou, China
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Changde First People's Hospital
Changde, China
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Chengdu Second People's Hospital
Chengdu, China
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Dalian Dermatology Hospital
Dalian, China
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Dermatology Hospital, Shandong First Medical University
Jinan, China
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Dermatology Hospital, Southern Medical University
Guangzhou, China
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First Affiliated Hospital of Chongqing Medical University
Chongqing, China
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First Affiliated Hospital of Ningbo University
Ningbo, China
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First Affiliated Hospital of Wenzhou Medical University
Wenzhou, China
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First Hospital of Shanxi Medical University
Taiyuan, China
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General Hospital of Ningxia Medical University
Yinchuan, China
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Guangzhou First People's Hospital
Guangzhou, China
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Hainan Fifth People's Hospital
Haikou, China
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Hangzhou First People's Hospital
Hangzhou, China
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Hospital of Dermatology, Chinese Academy of Medical Sciences
Nanjing, China
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Huashan Hospital, Fudan University
Shanghai, China
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Inner Mongolia Baogang Hospital
Baotou, China
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Jiangxi Provincial Dermatology Hospital
Nanchang, China
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Jinan Central Hospital
Jinan, China
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Jingzhou Central Hospital
Jingmen, China
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Lianyungang First People's Hospital
Lianyungang, China
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Liaocheng People's Hospital
Liaocheng, China
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Liaoning Provincial People's Hospital
Shenyang, China
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Meihekou Central Hospital
Tonghua, China
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Peking University People's Hospital
Beijing, China
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Qingdao Traditional Chinese Medicine Hospital (Hai Ci Hospital)
Qingdao, China
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Qujing First People's Hospital
Qujing, China
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Second Affiliated Hospital of Chongqing Medical University
Chongqing, China
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Second Affiliated Hospital of Nanchang University
Nanchang, China
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Second Affiliated Hospital of Wannan Medical College
Wuhu, China
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Shandong Provincial Hospital
Jinan, China
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Shanghai Skin Disease Hospital
Shanghai, China
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Shenyang Hospital of Integrated Traditional Chinese and Western Medicine
Shenyang, China
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Shenzhen Second People's Hospital
Shenzhen, China
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Shiyan People's Hospital
Shiyan, China
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Sichuan Provincial People's Hospital
Chengdu, China
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Suining Central Hospital
Suining, China
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The Affiliated Hospital of Xuzhou Medical University
Xuzhou, China
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The First Affiliated Hospital of Kunming Medical University
Kunming, China
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The First Hospital of Hebei Medical University
Shijiazhuang, China
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The Second Affiliated Hospital of Harbin Medical University
Harbin, China
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The Second Hospital of Jilin University
Changchun, China
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The Second People's Hospital of Changzhi
Changzhi, China
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Third Xiangya Hospital of Central South University
Changsha, China
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Wuhan No.1 hospital
Wuhan, China
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Wuxi Second People's Hospital
Wuxi, China
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Xingtai People's Hospital
Xingtai, China
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Yancheng First People's Hospital
Yancheng, China
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Zhejiang Provincial People's Hospital
Hangzhou, China
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Zhongyi Northeast International Hospital Co., Ltd.
Shengyang, China
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Zhujiang Hospital of Southern Medical University
Guangzhou, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Pilot study to evaluate the effect of nicotinamide riboside on immune activation in psoriasis
- Can monthly selfies and symptom logs reveal how chronic skin diseases flare and settle?
- Can we predict the path of chronic skin disease?
- Can a new pill tame psoriasis? early safety trial begins
- Can one pill tame four autoimmune diseases? a Long-Term trial puts it to the test
- Can a new skin ointment quiet psoriasis inflammation?