There are about 1320 clinical studies being (or have been) conducted in Saudi Arabia. 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.
Investigating the potential role of Aerosolized retinoic acid, a potent Vitamin A metabolite for treating COVID-19 Anosmia and retinoic acid insufficiency .A novel approach for regaining Sense of Smell. Mahmoud ELkazzaz(1),Tamer Haydara(2), Abedelaziz Elsayed(3) ,Yousry Abo-amer(4), Hesham Attia(5), Quan Liu(6) and Amr Ahmed(7) 1. Department of chemistry and biochemistry, Faculty of Science, Damietta University, Egypt. 2. Department of Internal Medicine, Faculty of Medicine, Kafrelsheikh University, Egypt 3. Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tanta University, Egypt. 4. Hepatology,Gastroenterology and Infectious Diseases Department, Mahala Hepatology Teaching Hospital, Egypt 5. Department of Immunology and Parasitology, Faculty of Science, Cairo University, Egypt. 6. School of Life Sciences and Engineering, Foshan University, Laboratory of Emerging Infectious Disease, Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China. 7. Director of tuberculosis program Ghubera, public health department ,First health cluster ,Ministry of health ,Saudia Arabia. - Very important Note: This clinical study is the first clinical study in literature (First posted August 12, 2021) which demonstrated depending on molecular findings that Vitamin A /Retinoic Acid will treat smell loss resulted by COVID-19 Recent rapidly accumulating evidences and reports indicate that partial loss of the sense of smell or even total anosmia are early markers of SARS-CoV-2 infection and frequently reported symptoms associated with the COVID-19 pandemic (Lechien J. R et al., 2020) However, the cellular mechanisms of this phenomenon are unknown. The rates of insomnia and depression were 26.45% and 9.92% in the COVID-19 patients after recovery. Therefore, finding an effective treatment for COVID-19 Anosmia is a critical point. Although, ACE2 has been identified as the principal host cell receptor of 2019-nCoV, and it is thought to play a critical role in the virus's entrance into the cell and subsequent infection, many cells can be infected by COVID-19 while also expressing little or no ACE2. Even though the COVID-19 entry receptor, angiotensin-converting enzyme 2 (ACE2), is not expressed in the receptor of olfactory neurons, or its synthesis is limited to to a minor fraction of these neurons.of these neurons, COVID-19 infection causes a loss of smell (anosmia) (Katarzyna Bilinska et al.,2021). Our recent findings showed that COVID-19 binds directly to STRA6 receptors of retinol leading to retinol depletion and retinoic acid insufficiency (M Elkazzaz et al,. 2021) . Retinoic acid insufficiency in the olfactory epithelium, both in mouse and chick models, causes progenitor cell maintenance failure and, consequently, olfactory neurons differentiation is not maintained . An explant system, showed that renewal of olfactory neurons is inhibited if retinoic acid synthesis was failed in the olfactory epithelium (Paschaki M et al., 2013) . It's worth noting that vitamin A shortage also causes olfactory and taste problems, In a study by Garrett-Laster et al., (1984), the patients had vitamin A deficiency because of malnutrition and alcoholic liver cirrhosis; they lost their sense of smell after that disorder. LaMantia and Rawson et al.,( 2007) reported that administration of retinoid acid after the damage of olfactory system motivates an immune response and produces a more quick recovery of olfactoryguided behavior. It was showed that Isotretinoin improved the significantly performance of patients in the olfactory test(Demet Kartal et al.,2017) Moreover, there is increasing evidence that retinoic acid (atRA) influences gene expression of components of renin-angiotensin system (RAS), which plays a pivotal role in the pathophysiology of essential hypertension. Retinoic acid induced ACE2 expression in different animal models. Moreover, a study suggests that topical retinoids may have applicability in promoting sinus regeneration and wound healing. In a study comparing treated and untreated nasal mucosa ,untreated regenerated mucosa showed expected changes of submucosal gland loss, basal lamina and lamina propria fibrosis and loss of cilia. Reinoic acid treatment appeared to result in better mucosal regeneration marked by less cellular atypia and fibrosis(Mendy S. Maccabee et al,. 2003).. Aerosolized retinoic acid will have an effective role in treating post COVID-19 anosmia (loss of smell) via upregulating ACE2, STRA 6 and regenerating of olfactory receptors and olfactory sensory cells and neurons.
Existing evidence confirmed that saliva and oral cavity to be a reservoir for SARS-CoV-2. In dental clinic aerosol-producing-procedures pose a significant risk for transmission of the infection . It is very important to minimize the risk of transmission in dental office reducing the load of SARS-CoV-2 in saliva if possible, in suspect or conformed cases. Preprocedural mouth rises have been used widely to minimize the number of oral microorganisms. Multiple studies confirmed the efficacy of those mouth rinses in reducing the possibility of transmission of SARS-CoV-2 infection .
Anesthesia for neurosurgery requires balancing deep and effective anesthesia as well as postoperative analgesia versus the risks of delayed recovery and postoperative respiratory depression. This randomized placebo-controlled, double-blind study was designed to evaluate the effect of magnesium sulfate on the total anesthetic and analgesic consumption using the clinical parameters in addition to the effect on IONM reading.
The reverse Nordic curl is a body-weight exercise which mainly works the quadriceps and hip flexors. It has a large eccentric component, meaning the muscles are working whilst lengthening. The purpose of this study is to investigate the effect of the reverse Nordic curl exercise on Quadriceps femoris muscles injuries among soccer players. It hypothesized that reverse Nordic curl exercise has a beneficial effect in terms of Quadriceps femoris muscles injury prevention.
The effect of the Copenhagen Adduction Exercise on groin injuries rate among soccer players The Copenhagen adduction exercise is a body-weight exercise which mainly works the groin and hip Adductors. It has a large eccentric component, meaning the muscles are working whilst lengthening. The purpose of this study is to investigate the effect of the Copenhagen adduction exercise on groin injuries among soccer players. It hypothesized that Copenhagen adduction exercise has a beneficial effect in terms of groin injury prevention.
The study is a clinical controlled trial. Ethical approval will be obtained from Imam Abdulrahman bin Faisal University, Dammam. The study participants will be recruited from the dental hospital and conducted between November 2020 to November 2020. This will be a single-center, randomized, single blinded with a 1:1:1 allocation ratio for the application of Icon® resin infiltration, MI Paste Plus and both treatments
The Oslo Sports Trauma Research Center (OSTRC) was established in May 2000 at the Norwegian School of Sport Sciences.The OSTRC aims to prevent injuries and other health problems related to sports. The majority of the research conducted at OSTRC involves elite sports. The purpose of this study is to investigate the effect of the Oslo Sports Trauma Research Center (OSTRC) Injury Prevention Program in reducing injuries among athletes. Hypothesis: that Oslo Sports Trauma Research Center (OSTRC) Injury Prevention Program has a beneficial effect in terms of injury prevention. The purpose of this study is to investigate the effect of the Oslo Sports Trauma Research Center (OSTRC) Injury Prevention Program in reducing injuries among athletes.
Tracheostomized patients in the ICU can have excessive tracheal secretions due to various causes as hyperactive airway, irritation of the mucus producing cells and inhibition of the ciliary functions. Excessive secretions will necessitate frequent suctions which carries the risk of tracheostomy tube obstruction if not managed properly. Excessive tracheal secretions may prolong the ICU stay, increase the nurses workload and increase patients morbidity and mortality. This clinical trial hypothesizes that the use of glycopyrrolate may decrease the tracheal secretions and hence avoid such complications.
1.5. Why this clinical study? The prevalence of seropositivity following SARS-CoV 2 infection might have its own potential benefits in terms of predicting the end of pandemic and the validity of herd immunity. It is not clear if SARS-CoV 2 infection would have a long-lasting antibody-mediated immunity, and if the antibodies' persistence is dependent on disease severity.depends on the severity of illness. If evidence is provided about the persistence of antibodies that is reflective of the protective immune response, serodiagnosis will be an important tool to identify individuals with various risk for infection, and those who are in need of receiving the forthcoming vaccines. The here proposed prospective clinical study will test the prevalence of seropositivity following SARS-CoV 2 infection in critically ill patients compared to those who do not require intensive care unit (ICU) admission or invasive ventilation with respect to the IgM and IgG levels.
. Coronavirus (SARS-CoV2) appeared first in China late 2019 and caused an acute respiratory disease referred to as Coronavirus disease 2019 (COVID-19). SARS-CoV2 is considered by the World Health Organization (WHO) as pandemic and affected nations worldwide, leading to close borders and major economical struggle. The ongoing viral threat due to the lack of effective therapies and vaccination might prolonged this economical challenge and many businesses will face huge financial constraints leading to laying off labors, an increase in the unemployment rate, and major companies' bankruptcies. However, returning to normal business operations should be done with a safety focus and not be at the cost of global health and wellbeing. Immunity against COVID-19 is going to be a major determinant for a future safe work environment and will reduce the viral infection risk. Therefore, PI is suggesting that if an employee has antibodies against SARS-CoV-2 confirmed by serological testing, he or she could go back to work safely with taking the necessary precautions.