There are about 3753 clinical studies being (or have been) conducted in Hong Kong. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
This is an extension study to evaluate safety and efficacy of ozanimod in participants with moderately to severely active Crohn's Disease.
This is a study to demonstrate the effect of oral ozanimod as maintenance therapy in participants with moderately to severely active Crohn's Disease.
Background: Epilepsy is a chronic neurological disease which affects approximately 70,000 patients in Hong Kong and 50 billion people worldwide. Among these patients one-third remained unresponsive to antiepileptic agents. Continual drug manipulation is an essential therapeutic option for these patients with refractory epilepsy. In particular, rational polytherapy has become the mainstay of treatment for the sub-group of patients who have failed two or more antiepileptic drugs (AEDs). A substantial amount of research has shown that N-methyl-D-aspartate receptors (NMDA) may play a key role in the pathophysiology of several neurological diseases, including epilepsy. Animal models of epilepsy and clinical studies demonstrate that NMDA receptors activity and expression can be altered in association with epilepsy and particularly in some specific seizure types. NMDA receptor antagonists have been shown to have antiepileptic effects in both clinical and preclinical studies. There is some evidence that conventional antiepileptic drugs may also affect NMDA receptor function. Aims: To investigate the medium to long-term effects of AMPA/NMDA receptor antagonist in an Asian cohort as there is a relative lack of clinical data in this population To explore the efficacy of AMPA/NMDA receptor antagonist in patients with partial onsets seizures that may secondarily generalize and the specific side effects of AMPA/NMDA receptor antagonist in relation to behavioral problems. Methods: A semi-prospective design is adopted to recruit patients who are indicated and started on AMPA/NMDA receptor antagonist aged 12 or above in Hong Kong. This study will collect information about demographic details, medical history and seizure information. Assessment of seizure frequency is based on seizure diary and interviews with family members. Physical examination, electrocardiogram and other medical information relevant to the follow-up of the patient will be collected.
Colorectal cancer (CRC) is the third most common cancer type in males and the second in females, accounting for about 693,900 deaths worldwide per year. Although the annual CRC mortality rate is still very high, it demonstrated a decline by 47% among men and 44% among women from 1990 to 2015. This decreasing trend may be attributed to improved screening, early detection as well as combined CRC treatment. In fact, the mortality rate is expected to reduce further by long-term use of chemopreventive agents that can prevent the development of neoplasms in the large bowel. Several decades of research both in clinic and laboratory has identified aspirin as an effective synthetic CRC chemoprevention drug. It is commonly accepted that aspirin exerts its chemopreventive effects by inhibiting catalytic enzymes cyclooxygenase (COX) -1 and COX-2 involved in prostaglandin synthesis. But the mechanism of its chemopreventive effect on CRC is not clearly understood. Other than CRC, aspirin also showed its potential inhibitory effects on some other types of solid cancer, such as pancreatic, lung, breast and prostate cancers. However, its effects on extragastrointestinal cancer types are still elusive due to lack of reliable supporting evidence from randomized clinical trials. Based on current knowledge, it is unclear why aspirin appears to inhibit CRC more than other cancers. This might be associated with the unique microenvironment comprising trillions of microbes in which CRC resides.
The objective of this study is to assess the safety and efficacy of mecbotamab vedotin (BA3011) in solid tumors.
Frailty has been proposed as a measure of biological (as opposed to chronological) aging. In this study the investigators plan to: (1) measure frailty in a cohort of older HIV-infected individuals in Hong Kong, and its association with mortality and quality of life; (2) identify risk factors predictive of development of frailty in HIV-infected individuals in Hong Kong; and (3) determine the outcomes of HIV-infected individuals in Hong Kong with and without frailty. The following assessment will be done: 1. Physical examination including measuring height, weight, hip and waist circumference. 2. Grip strength, chair stand test, gait speed test, balance tests, and neurocognitive tests 3. Geriatric syndromes, screening for depression, disability and quality of life. 4. Blood tests during fasting state to measure metabolic parameters. This is a prospective longitudinal observational study that lasts for 10 years.
Lumbar spinal stenosis (LSS) is a common spinal disease that leads to pain and disability. LSS is defined as lower extremity and perineal symptoms (e.g. intermittent neurogenic claudication/numbness) that may occur with or without low back pain and that is attributed to congenital or acquired narrowing of space available for the neural and vascular tissues in the lumbar spine. Patients with LSS,who do not respond to conservative treatments after 3 months or more, will be eligible for spinal decompression surgery in order to improve functional outcomes. While various studies have shown that preoperative exercises (prehabilitation) may benefit patients receiving different surgeries (e.g, abdominal surgery, anterior cruciate ligament reconstruction), little is known regarding the effect of prehabilitation for patients undergoing LSS surgery. The aim of the current randomized controlled trial is to compare the effectiveness of a 6-week prehabilitation program with usual preoperative care in improving multiple outcomes of patients undergoing LSS surgery at baseline, 6 weeks after baseline evaluation, and at 3 and 6 months postoperatively. It is hypothesized that prehabilitation will yield significantly better pre- and post-operative clinical outcomes as compared to usual preoperative care.
Low back pain (LBP) is a severe epidemic in the world. Despite its high prevalence, 90% of the cases have no identifiable cause. Approximately 44% of them experience recurrent LBP within one year and 10% of them develop chronic LBP that lasts for three months or more. Mechanically, the lumbar spine is unstable and requires spinal muscle to maintain spinal stability and to prevent injuries. Lumbar multifidus (LM) muscle is thought to be the major spinal stabilizer responsible for spinal stability and spinal proprioception. Prior studies have revealed that increased fat infiltration, atrophy or activation deficits of LM in patients with LBP as compared to asymptomatic individuals. Unfortunately, inconsistent findings have also been reported. Although prior research attempted to determine if abnormal LM characteristics can inform clinical decision-making, their results are limited because they only investigated a single LM characteristic at a time, which might not reflect the actual LM condition. Further, many studies adopted cross-sectional design that could not reveal the casual relations between abnormal LM characteristics and LBP. As such, the current study aims to identify specific LM characteristics that can predict new episode of LBP in asymptomatic individuals, and recurrent/chronic LBP in individuals with LBP at baseline.
Postmenopausal bleeding (PMB) is a common gynaecological complaint, accounting for up to 5 to 10 % of postmenopausal women being referred to gynaecological outpatient clinic. It also comprised of up to 10% of our outpatient gynaecological referral. In general, 60 % of women with postmenopausal bleeding have no organic causes identified, whilst benign causes of PMB includes atrophic vaginitis, endometrial polyp, submucosal fibroid and functional endometrium. However, between 5.7 to 11.5% of women with postmenopausal bleeding have endometrial carcinoma, which is the fourth most common cancer among women, therefore, it is important to investigate carefully to exclude genital tract cancer. A One-stop postmenopausal bleeding clinic has been established since February, 2002 by the Department of Obstetrics and Gynaecology, New Territories East cluster (NTEC) aiming at providing immediate assessment of women with postmenopausal bleeding in one single outpatient clinic assessment. During the visit, a detailed history was taken in regarding the PMB and usage of hormonal replacement therapy or herbal medicine. A physical examination was performed and a cervical smear was taken if not been taken within a year. Transvaginal ultrasound (TVS) was then performed to measure the endometrial thickness (ET), examining ovaries then followed by an endometrial sampling. An outpatient hysteroscopy was performed only if TVS showed an ET >= 5mm, or an abnormal endometrial appearance or unsatisfactory ET. Benign looking endometrial polyp would be removed during the outpatient hysteroscopy if possible. At the moment, there was very limited local data and lack of the long term result. Investigators aim to retrospectively evaluate the clinical outcome of postmenopausal bleeding patients who has attended One Stop Postmenopausal Clinic in order to formulate better care and counseling in future. Objectives: 1. To analyze histopathology in relative to history and ultrasound findings in PMB women presented to One Stop Postmenopausal Bleeding Clinic at NTEC 2. To correlate the clinical findings of transvaginal ultrasonography (TVS) with outpatient hysteroscopy and endometrial assessment in The One Stop Postmenopausal Bleeding Clinic 3. To identify predictive and prognostic factors in women with PMB for possible use in triaging high risk patients
Background: Ionic silver-containing dressing has been proven as a broad spectrum antimicrobial agent to reduce inflammation of wounds and promote healing. However, surgical incisions are usually dressed with conventional gauze dressing in colorectal surgery. Objective: To compare the effectiveness in preventing surgical site infection (SSI) by using conventional gauze dressing and occlusive ionic silver-containing dressing. Methods: This is a single-blind two-arm parallel randomized controlled trial on occlusive ionic silver-containing dressing conducted in Surgery Department of Princess Margaret Hospital. Two hundred patients who undergo emergency or elective abdominal colorectal surgery will be recruited and randomly assigned to have the surgical incisional wound dressed with conventional gauze dressing or occlusive ionic silver-containing dressing. Subjects will be assessed for SSI on day 3, 15 and 30 after operation in a clinical visit followed by phone interviews.