View clinical trials related to Anosmia.
Filter by:Olfactory dysfunction is common among patients with Corona-Virus-Infection-Disease (COVID)-19, and up to 30% of patients may report persistent disorders of smell or taste as a long-term sequelae. This randomized-controlled study has addressed to compare the efficacy of neuro-protective and anti-inflammatory agents palmitoylethanolamide (PEA) and Luteolin(Treatment) with control (olfactory training) in a cohort of patients who present persistent smell disorders after resolution from Covid-19 and negative swab for 4 months at least.
The loss of smell and taste is a prominent symptom of COVID-19. Studies found that patterns of smell loss due to Covid-19 infection differ from that of other respiratory viruses being much more profound in the Covid-19 patents and did not associate with runny, congested, or blocked-up nose. The researchers suggest that smell and taste testing can be used for fast COVID-19 screening. Studies found that the Covid-19 virus has similarities with severe acute respiratory syndrome coronavirus (SARS-CoV), which has been reported to enter the brain, via smell receptors in the nose. The sudden onset and relatively fast recovery in some patients suggest that COVID-19 anosmia is not caused by damage to the central nervous system but rather by the loss of smell information before it gets to the brain (smell receptors). They also found that it has different behavior from other respiratory viruses as it causes over-reaction of the immune system (or a cytokine storm). Trials to treat post-COVID anosmia using local steroid applications, sniffing of strong odors or scents or use of different vitamins (for several weeks to months) did not provide rapid, satisfactory or even significant recovery of olfactory dysfunction. Fortunately, the olfactory neurons can regenerate, however, studies reported variable prognoses, some patients recovered within weeks which others may have persistent deficits for months or even a year. In this study, the researchers hypothesize that cerebrolysin, a drug of neurotrophic and neuroprotective properties, can be used to treat patients with persistent post-COVID anosmia or ageusia or promote functional recovery of smell and taste deficits.
Anosmia is a symptom present in 40 to 80% of patients and usually only lasts 1 to 2 weeks. However, in nearly one in five patients, it can last beyond or even several months with consequences in terms of undernutrition and depression. However, olfactory rehabilitation is a technique validated in post-infectious anosmia since 2014 and recommended by international learned societies to accelerate recovery with nearly 63% improvement in anosmia In the context of the health crisis linked to the coronavirus, approximately 1 million French people will have persistent anosmia following an infection with COVID-19. A web-application to support the olfactory coaching of anosmic patients and help with follow-up seems relevant to promote recovery and the proper conduct of this coaching. covidanosmie.fr is a web application dedicated to olfactory rehabilitation, accessible free of charge.
According to WHO (World Health Organisation) data, about 40% of patients with COVID-19 (Corona Virus SARS-CoV-2) have a mild course of the disease, namely, cases of mild course are of great danger from the point of view of the spread of infection, since the main source of infection is a sick person. The mild course of COVID-19 is characterized by a number of nonspecific symptoms: fever, cough, sore throat, nasal congestion, malaise, headache, muscle pain. Evidence has emerged of loss of smell as a symptom of COVID-19 infection. Anosmia/hyposmia in the absence of other respiratory diseases, such as allergic rhinitis, acute rhinosinusitis, or chronic rhinosinusitis, are considered as a clinical marker of COVID-19 infection in a pandemic.For people with a mild course of the disease, WHO recommends providing home care, and the recommendations come down to observing a sanitary-hygienic regimen and taking antipyretics if necessary. Unfortunately, the treatment of patients with a mild course is still outside the interest of medical science. In its updated strategy to curb the spread of COVID-19, WHO states the need for diagnosis, effective isolation, and treatment of patients with mild to moderate severity of the clinical course of patients.Currently, there is experience with the use of the drug Imupret for the treatment of nasopharyngitis associated with other viral pathogens, in particular Epstein-Barr virus. It was shown that the use of a Phyto preparation helps to accelerate the regression of symptoms characteristic of nasopharyngitis, as well as accelerate the elimination of the virus from the body. Obviously, the proven activity of Imupret is important in relation to the activation of factors of nonspecific immunity, which is important in confronting viruses, including COVID-19. Another obvious factor that is important for the treatment of viral diseases is the synergism of the active substances in oak bark and walnut leaves with respect to inhibition of reverse transcriptase of a wide range of respiratory viruses, as well as the anti-inflammatory effect of the drug. Confirmation of the therapeutic effect of Imupret for the treatment of nasopharyngitis associated with COVID-19 would allow the development of new therapeutic tools to combat this infection and put into practice updated WHO emphasis on national health systems: it is important to identify, treat and isolate all cases of COVID-19, including cases with mild or moderate severity of the disease.
Evidence of COVID-19 related anosmia and dysgeusia continues to accumulate daily. Currently, up to 80% of patients report subjective olfactory dysfunction (OD), and prevalence using objective olfactory testing could be even higher. We propose a phase II single-site, double-blinded, placebo-controlled randomized clinical trial to determine the efficacy and safety of intranasal theophylline, a known phosphodiesterase inhibitor in the treatment of asthma, as a possible treatment for COVID-19 related OD. Theophylline has shown benefit in similar clinical trials for post-viral OD.
The main aim of this study is to determine the effects of short-term treatment with hesperidin on COVID-19 symptoms in comparison with a placebo. Treatment effects will be observed through a symptoms diary that will be completed by participants throughout the study and by taking the oral temperature daily.
Olfactory dysfunction is a defining symptom of COVID-19 infection. As the number of total, confirmed COVID-19 cases approached 19 million in the United States, it is estimated that there will be 250,000 to 500,000 new cases of chronically diminished smell (hyposmia) and loss of smell (anosmia) this year. Olfactory dysfunction is proposed to worsen numerous common co-morbidities in patients and has been shown to lead to a decreased quality of life. There are very few effective treatments for hyposmia or anosmia, and there is no gold standard of treatment. One proposed treatment option is smell training, which has shown promising yet variable results in a multitude of studies. It garners its theoretical basis from the high degree of neuroplasticity within the olfactory system, both peripherally and centrally. However, due to a relative inadequacy of proper studies on olfactory training, it is unknown what the most efficacious method in which to undergo the training is. This study proposes two novel procedural modifications to smell training in an attempt to enhance its efficacy. The investigators propose using a bimodal visual-olfactory approach, rather than relying on olfaction alone, during smell training, as well as using patient-preferred scents in the training that are identified as important by the study participant, rather than pre-determined scents with inadequate scientific backing. The investigators hypothesize that by utilizing bimodal visual-olfactory training and patient-selected scents, the olfactory training will be more efficacious and more motivating for participants.
Sense of smell disorders are common and are said to affect up to 20% of the general population. They are often disabling and have a real impact on the quality of life. Smell disorders are most often assessed using a visual analogue scale and more rarely with objective tests (Sniffing Stick Test). Many ENT units do not have these objective tests because they are time-consuming and are not covered by health insurance. Some teams, such as that of Dr Thomas Hummel of the Carl Gustav Carus University Clinic in Dresden Germany, have developed self-assessment questionnaires for the sense of smell in order to improve the overall care of patients with olfactory disorders. Two of these self-questionnaires seem to us to be particularly relevant for use in everyday practice. Since then, these questionnaires have already been validated in different languages (English, Chinese, Korean...), but have never been translated and validated in French. Translating and validating these questionnaires into French would make it possible to improve the management and follow-up of French patients with olfactory disorders and to assess the impact of loss of smell on their quality of life.
The study aimed to investigate the efficacy of insulin in a new dosage form ( fast dissolving film) in treatment of anosmia in patients post infested with Covid-19. The study implication based in two methods evaluations 1. Threshold test 2. identification test.
To capture the natural history of COVID-19 associated olfactory dysfunction as measured by two patient reported outcome measures (SNOT-22, QOD-NS) and a 6-week BSIT with a comparison to an intervention arm receiving daily omega-3 supplements.