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 a prospective study on the microbiota associated with oesophageal squamous cell carcinoma (SCC). Patients with newly diagnosed SCC of oesophagus would be recruited for taking samples of oral and oesophageal rinse, tissue biopsies for investigation of the microbiota of oesophageal cancer. Control patients would be identified from patients scheduled for routine endoscopy.
To date, there is a lack of large-scale randomized controlled study using AI assistance in the detection of polyps/adenoma in a screening population. The correlation of fecal occult blood test (FIT or FOBT) and the advantage of AI-assisted colonoscopy has not been investigated. There is also a lack of information of the benefit of AI-assisted colonoscopy in experienced colonoscopist versus trainee/resident.
To understand the risk perception, behaviour, and attitudes related to electronic cigarettes and other tobacco products among youth.
This is a prospective observational study on normal singleton pregnant women who have no sign of labor at 40 weeks of gestation or pregnant women who admitted to hospital for any sign of labor at term, aiming to identify labor-associated markers.
The disease COVID-19 has been classified as pandemic by World Health Organisation (WHO) in March 2020. This poses a risk to healthcare workers. Whether esophagogastroduodenoscopy (EGD) is a aerosol-generating procedure (AGP) has brought controversy. Multiple international guidelines consider EGD as AGP based on expert consensus. No scientific data has been published regarding this. With a commercially available particle counter, we can differentiate the particle counts of different sizes in different areas of the endoscopy room. An increase from baseline particles of < 5um during or after the procedure would suggest that the procedure is an AGP. The baseline particle counts before and during the procedure are also recorded. The details of the procedure including procedure time and the use of sedation are also documented.
Sciatic nerve block at the popliteal fossa is indicated for foot or ankle surgery, and the introduction of ultrasound guidance (USG) has improved the ease and accuracy of the performance of this block. Recent studies proved that subparaneural injection is associated with faster block onset, higher block success rate, and prolonged block duration suggesting subparaneural compartment of the sciatic nerve is a desirable site for local anaesthetic injection. Data from an ongoing trial in the investigator's institution comparing the block dynamics of subparaneural injection of 30ml 0.5% levobupivacaine (Chirocaine) above and below the bifurcation of the sciatic nerve at popliteal fossa has also shown that the time to 'readiness for surgery' was faster when the injection was performed below the bifurcation of the sciatic nerve. Lidocaine (Xylocaine) has a better pharmacokinetic and pharmacodynamics profile than levobupivacaine and is also widely used as local anaesthetic agent in clinical practice. Since there is no data comparing the block dynamics of lidocaine and levobupivacaine, this study aims to study and compare the block dynamics of lidocaine and levobupivacaine when given as a subparaneural injection below the bifurcation of the sciatic nerve at the popliteal fossa. In this study, the investigator hypothesizes that the use of lidocaine as the sole agent for this block will fasten the time to 'readiness for surgery' as compared to levobupivacaine when given as a subparaneural injection below the bifurcation of the sciatic nerve at the popliteal fossa.
In this study, a 14-week, single blinded, randomized controlled clinical trial will be conducted to determine whether acupuncture could have significant benefits than sham acupuncture for IBS.
Folliculogenesis involves the recruitment of primordial follicles into a group of growing follicles in which eventually one follicle is selected, matured and ovulated. Complex endocrine and intra-ovarian paracrine interactions occur to create a changing intra-follicular hormonal milieu suitable for oocyte development. However, this oocyte developmental competence and to undergo fertilization and embryogenesis is impaired in aged women. Diminished ovarian function is generally attributed to decreased quantity and quality of oocytes and their surrounding granulosa cells during ovarian aging, although the underlying mechanisms remain unclear. The aim of the study is to investigate the miRNA in (follicular fluid) FF exosome in young and aged women and their relationship to egg maturation.
The purpose of this study is to study the effectiveness of in-brace 3D scoliosis correction by comparing Rigo Chêneau orthoses (RCO) with conventional Traditional Boston-style thoracolumbosacral orthoses (TLSO) in Adolescent Idiopathic Scoliosis (AIS) patients, following Scoliosis Research Society (SRS) and The International Scientific Society on Scoliosis Orthopaedic and Rehabilitation Treatment (SOSORT) recommendations for non-operative AIS management and research studies. This group of patients that reach the threshold for bracing have an intrinsic higher risk for curve progression. Hence, the proposed study will provide novel and high quality evidence to improve the efficacy of bracing in the non-operative treatment of AIS. This will contribute significantly to the betterment of public health by reducing the number of patients requiring surgical intervention. Ultimately, new evidence-based clinical practice guidelines on the most effective type of scoliosis braces will benefit children diagnosed with AIS worldwide.
A 13 weeks randomized, double-blind and placebo parallel-controlled trial will be conducted to evaluate the clinical efficacy and safety of Zhizhu Kuanzhong Capsule in the treatment of functional dyspepsia-postprandial distress syndrome.