Clinical trials

Dentofacial deformity refers to a group of disorders characterized by malocclusion and facial asymmetry resulting from developmental abnormalities of the maxilla and mandible, which cause morphological and positional anomalies of the jaws. Compared with the traditional orthodontics-orthognathic surgery-orthodontics treatment protocol, the surgery-first approach has witnessed a continuous expansion of its clinical application scope. Nevertheless, academic controversies persist regarding its indication boundaries, postoperative jaw stability, and adaptive changes of the temporomandibular joint. In orthognathic surgery, computer-aided design/computer-aided manufacturing (CAD/CAM) surgical guides indirectly determine the three-dimensional spatial positions of the maxilla and mandible through occlusal relationships. The tooth-bone dual-supported osteotomy and positioning guide combined with pre-bent patient-specific implants (PSIs) forms a novel surgical guide system that enables independent and direct positioning of the maxilla. Theoretically, this system can eliminate errors derived from mandibular positional instability and thereby improve surgical accuracy. However, comparative studies investigating the clinical application of these two types of guides in surgery-first orthognathic surgery are still lacking. This prospective, randomized, controlled, single-blind clinical study aimed to explore the clinical value of PSIs and conventional CAD/CAM guides in surgery-first orthognathic surgery, with primary outcomes focusing on surgical accuracy, postoperative jaw stability, and temporomandibular joint alterations. The findings will provide evidence-based medical support for the expanded application of this novel technique in precision orthognathic surgery.

Patients with salivary gland carcinoma were divided into groups according to HER2, NTRK, AR, TROP-2, etc. Patients in different groups were given precision targeted therapy or chemotherapy to evaluate the efficacy (ORR rate) and safety of precision therapy.

Air pollution threatens the respiratory health of patients with interstitial lung disease (ILD). High-efficiency air purifiers, featuring easy operation and excellent particulate matter removal efficiency, have been shown in previous studies to potentially delay lung function deterioration and reduce acute exacerbation risk in respiratory disease patients. This randomized crossover study employs air purifiers to filter indoor gaseous pollutants, allergens, and other contaminants, aiming to alleviate respiratory irritation, improve daily life comfort, and enhance overall health status in ILD patients.

The impact of nutritional support for the patients at nutritional risk on clinical outcomes and cost-effectiveness.

1. The aim of this large scale study to survey the prevalence of nutritional risk and malnutrition in China,Europe and USA. 2. The impact of nutritional support for the patients at nutritional risk on clinical outcomes and cost-effectiveness Already get the approval by Ethics Committee of Peking Union medical college and Johns Hopkins Hospital.

Secukinumab is currently approved in Europe, US and China for the treatment of moderate to severe HS as a biologic agent targeting IL-17A.Two phase III clinical trials (SUNSHINE and SUNRISE) showed that 300 mg s.c. every 2 weeks resulted in 42% to 45% of patients achieving a clinical response (HiSCR) to HS, and the efficacy was sustained through 52 weeks.However, we found in clinical practice that some HS patients present with localized lesions (small areas of involvement, affecting only 1-2 anatomic areas) that are resistant to conventional therapy, and have not yet fulfilled surgical indications, and the need for systemic biologic therapy is controversial.Such patients often experience inadequate response or slow onset of action when they receive secukinumab by routine subcutaneous injection - possibly related to inadequate drug concentration in the focal lesional area and limited local anti-inflammatory effects after systemic administration.In addition, side effects of conventional subcutaneous injection system are greater, and the application is limited in some patients, so it is necessary to explore more appropriate and safer drug delivery method for localized skin lesions.Localized HS, local injection of lesions may enhance anti-inflammatory effects while reducing systemic exposure by increasing drug concentrations at the lesion site.Therefore, exploring novel modes of administration of secukinumab has practical clinical implications based on clinical practice needs and the context of the previous literature.In summary, by exploring the efficacy and safety of local skin injection of secukinumab, this study may provide a new strategy for the treatment of limited HS with sufficient scientific rationale and significant potential benefits and manageable risks.

This single-arm, multi-center study is to evaluate Sugemalimab plus platinum-based chemotherapy as first-line therapy for patients with locally advanced and metastatic NSCLC in a real-world setting.

Background Mental health issues are common and often overlooked in COPD patients. Digital psychological interventions might help, but their effectiveness in Chinese COPD patients hasn't been studied. This study aims to develop and evaluate EmoEase, a digital psychological intervention, for its effectiveness and cost-effectiveness in improving mental wellbeing in Chinese COPD patients. Methods This multicenter, two-arm, randomized controlled trial (RCT) will enroll at least 420 COPD patients over 35 years old. Participants will receive either usual care (control group) or usual care plus EmoEase (intervention group). Assessments will occur at baseline (T0), 4 weeks (T1), 8 weeks (T2), and 16 weeks (T3). Participants will complete questionnaires and undergo physical measurements. The primary outcome will be mental wellbeing measured by the Warwick Edinburgh Mental Wellbeing Scale (WEMWBS). Secondary outcomes will assess mental and physical health, COPD symptoms, health risk behaviors, socioeconomic factors, and healthcare use and costs. Analyses will use an intention-to-treat approach. Discussion This is the first RCT to evaluate EmoEase for COPD patients. If effective and cost-effective, EmoEase could be scaled up to provide mental health support to COPD patients in China.

This single-center, prospective, observational study aimed to evaluate the efficacy and safety of Secukinumab in treating moderate-to-severe hidradenitis suppurativa (HS). The study was conducted from June 1, 2025, to June 1, 2026, and all participants were treated at the Department of Dermatology, Peking Union Medical College Hospital. The study was approved by the Clinical and Research Ethics Committee of the Chinese Academy of Medical Sciences, Peking Union Medical College Hospital (Ethics Approval No. I-24PJ1844). All procedures involving human participants adhered to the Declaration of Helsinki. Written informed consent form was signed and obtained from the participant.

Hypophosphatemia is a common phenomenon in the ICU, and several retrospective studies have shown that hypophosphatemia is associated with prolonged mechanical ventilation in ICU patients. However, the specific mechanism and causal relationship are not clear. Previous studies have shown that phosphate infusion improves the contraction of the diaphragm induced by exogenous electrical stimulation, but the effect of hypophosphatemia and phosphate supplementation on the pathophysiology in decannulated patients on mechanical ventilation has not been confirmed. The study group hypothesized that hypophosphatemia affects neural conduction function and muscle contraction by affecting ATP synthesis. Correcting hypophosphatemia may improve respiratory muscle strength and potentially improve diaphragmatic neural conduction, ultimately improving the patient's neuromuscular conversion efficiency and facilitating discharge. 1. The attending physician evaluates the patient's ventilator condition daily and meets the disconnection criteria (spontaneous breathing, RSBI \< 105 (min\*ml)-1, stable hemodynamics: norepinephrine or epinephrine ≤ 0.1μg/kg/min, PEEP ≤ 8cmH2O, FiO2 ≤ 50%, no increase in ventilator support conditions in the past 24 hours, PS 10cmH2O, MAAS score 2-4, pH ≥ 7.30, discontinuation of all sedative medications). After signing an informed consent form, a diaphragm electromyography (EEG) catheter is placed. (The diaphragm EEG catheter is a gastric tube with diaphragm electromyography monitoring function, with the same placement process and risks as a regular gastric tube. There is a small probability of complications such as nasal mucosal damage.) 2. Start CPAP disconnection: Adjust the ventilator PS 10 → 0 cmH2O, and keep the other conditions unchanged. Collect ventilator parameters, diaphragm electromyography (EAdi) parameters, and diaphragm ultrasound parameters at 0, 1, 3, 5, 10, 20, and 30 minutes after the trial begins, and collect the maximum EAdi and diaphragm ultrasound during quiet state. 3. Simultaneously monitor blood inorganic phosphorus, and divide the patients into two groups: the low phosphorus group (\<0.8mmol/L) and the control group (0.8-1.4 mmol/L). Low phosphorus patients receive intravenous phosphate supplementation according to the clinical phosphate supplementation protocol at our center \[1-5\]: patients with blood phosphorus \< 0.4mmol/L receive 40mmol of glycerol phosphate sodium intravenously via infusion or injection over 4-6 hours; patients with blood phosphorus 0.4-0.8mmol/L receive 30mmol of glycerol phosphate sodium intravenously via infusion or injection; Normal phosphorus patients do not require any special treatment. 4. 24h after the first CPAP offline, patients in both groups repeated the CPAP offline process, collected related parameters, and measured blood inorganic phosphorus.

This study aims to retrospectively analyze the efficacy and safety of secukinumab combined with surgery in treating moderate to severe HS in real-world clinical practice, providing clinical practioners with real-world evidence in HS treatment.

Background and Significance: Stroke is the leading cause of death in China, placing a heavy burden on patients, families, and society. Despite advancements in acute stroke treatment, the recurrence rate remains high, and secondary prevention faces significant challenges. Current standard care does not fully address the diverse needs of stroke patients. Home-based health care (HBHC) offers a promising new intervention, providing continuous medical support, personalized lifestyle changes, and improved medication adherence, potentially reducing the risk of stroke recurrence. Study Objectives and Hypotheses: The study seeks to assess the impact of HBHC on reducing stroke recurrence, improving quality of life, enhancing physical function, addressing psychological health issues, and increasing medication adherence. Additionally, the study will explore the cost-effectiveness of HBHC in reducing medical resource utilization and preventing cardiovascular events. It is hypothesized that HBHC will effectively reduce stroke recurrence and improve overall health outcomes. Study Design This study is a multicenter, randomized controlled trial designed to assess the effectiveness and cost-effectiveness of a home-based health care (HBHC) model in preventing recurrent strokes. A total of 1,614 stroke patients will be recruited from multiple regions in China and randomly assigned in a 1:1 ratio to either the intervention group or the control group. The intervention group will receive a comprehensive 12-month HBHC program that includes managing stroke recurrence risk factors, functional rehabilitation, daily living skills recovery, psychological health interventions, nutritional and lifestyle counseling, risk prevention, and caregiver empowerment. In contrast, the control group will receive standard post-stroke care and follow-up according to local guidelines. Both groups will undergo follow-up assessments at 6 and 12 months to evaluate stroke recurrence, quality of life, physical function, and psychological health. The study will span 2 years, with the primary outcome being the stroke recurrence rate within 12 months. Secondary outcomes include improvements in quality of life, physical function recovery, psychological health, medication adherence, cardiovascular events, and medical resource utilization. A process evaluation will also be conducted to assess the feasibility, adaptability, and implementation challenges of the HBHC model across different regions and patient populations. Value and impact: The findings will offer valuable insights into the feasibility and adaptability of HBHC across different regions and patient populations, contributing to the development of evidence-based strategies for improving long-term stroke management. Ultimately, this research will inform policy decisions, enhance clinical practice, and support the broader adoption of HBHC interventions to mitigate the burden of stroke and improve patient outcomes.

This implementation study aims to identify priorities and formulate strategies to overcome health service delivery bottlenecks associated with hypertension and diabetes in rural China. Leveraging implementation frameworks, the study seeks to unravel the complexities embedded within the care cascade, paving the way for targeted interventions. Addressing the nuanced dynamics of the care cascade, this research will provide indispensable insights for optimising healthcare delivery in resource-limited settings, ultimately informing global perspectives on chronic disease management. The overall aim of this study is to enhance the control of hypertension and diabetes in rural China through a systematic assessment and improvement of the care cascade, specifically: 1. To describe the cascade gap and identify barriers and facilitators at each cascade stage. 2. To develop practical interventions through stakeholder co-design. 3. To assess the effectiveness of developed interventions and evaluate implementation strategies.

(1) To apply Bayesian statistics to screen for the most effective treatment regimen containing recombinant humanized anti-HER2 monoclonal antibody-MMAE coupling agent vedicitumomab (Edisil, RC48) for locally advanced or metastatic salivary gland ductal carcinoma expressing HER2 in the near future. (2) To explore biomarkers relevant to the efficacy of recombinant humanized anti-HER2 monoclonal antibody-MMAE-coupled vedicitumomab (Edisil, RC48) in the treatment of HER2-expressing locally advanced or metastatic salivary gland ductal carcinoma.

This is a multi-center,randomized,phase 3 clinical trial. In the study, HER2-positive metastatic breast cancer patients with abnormal activation of PI3K/Akt/mTOR pathway after progression on trastuzumab are enrolled and randomized to receive the treatment of Inetetamab plus Rapamycin plus chemotherapy or Pyrotinib plus chemotherapy.The study aimed to access the efficacy and safety of Inetetamab combined with Rapamycin and chemotherapy in HER2-positive metastatic breast cancer patients with abnormal activation of PI3K/Akt/mTOR pathway.