25 research outputs found
Modern approaches to the treatment of chronic urticaria
No full textThe article provides modern definitions and classification of urticaria. The general provisions of the treatment of chronic urticaria, the treatment of which is often very difficult, are outlined. The main provisions of the treatment of urticaria were formulated, according to which the patient should be treated until the rash is completely resolved. In chronic urticaria, it is necessary to identify and eliminate the causes of dermatosis; avoid exposure to identified triggers; increase tolerance; pharmacological treatment should be aimed at preventing the release of mast cell mediators and/or the effects of mast cell mediators. The goal of treatment should be to relieve the symptoms of urticaria as completely as possible, taking into account the safety and quality of life of the patient in each individual case. The importance of identifying and addressing underlying causes and avoiding identified triggers is emphasized. The therapy algorithm is considered in detail, including 4 lines according to the European guidelines and domestic clinical guidelines. Particular attention is paid to the treatment of various subtypes of chronic urticaria. A comparative description of the most effective antihistamines is given
To the question of the effect of isotretinoin on the neuropsychic state of patients with acne
No full textPatients with acne often develop neuropsychiatric disorders of varying severity, correlating, as a rule, with the severity of dermatosis. Isotretinoin is the most commonly used drug for the treatment of moderate acne. Due to the fact that in a number of studies isotretinoin was considered as a trigger for the development of various neuropsychiatric disorders, numerous studies were conducted to prove this possibility or to refute it. An analysis of the literature showed that, according to the vast majority of studies, isotretinoin does not lead to neuropsychiatric disorders. However, given the opposite opinion of some authors, it is advisable to actively identify, including in the anamnesis, any psycho-emotional disorders, and monitor them during therapy. In these cases, it is indicated to start treatment with small doses (recommendations have not been developed)
NEW APPROACH IN URTICARIA TREATMENT
No full textThe article presents the European Guidelines for the Diagnostics and Management of Urticaria (revised in 2013) and new data on the physiopathology of urticaria related to the role of the platelet-activating factor (PAF) activating mast cells, attracting eosinophils and neutrophils, improving vascular permeability (it is more potent than histamine by 1,000 times) and mucosal edema, and increasing the level of pro-inflammatory cytokines. The data promoted the creation of a new rupatadine molecule, which blocks histamine and PAF receptors at the same time improving the therapeutic effect during urticaria treatment as compared to other antihistamine drugs. The author presents the study results confirming the efficacy and safety of rupatadine
The new external drug for the treatment of psoriasis based on inhibition of serine proteases
No full textBackground: Psoriasis is a chronic inflammatory immune-mediated disease characterized by an increased rate of keratinocyte division. The results of recent studies have made it possible to establish that the cytokines of the IL-36 family occupy a significant place in the initiation and regulation of the inflammatory process in psoriasis.
IL-36 is in an inactive form and proteolytic processing is required for its activation in the skin, which is possible with the participation of neutrophilic serine proteases. Localization of these enzymes in the upper layers of the epidermis suggests the clinical efficacy of a topical targeted drug that inhibits serine proteases, sivelestat. On the basis of this active substance, we have created a drug in an external dosage form and conducted an experimental study of its effectiveness on a laboratory model of psoriasis.
Aims: to evaluate the therapeutic efficacy of sivelestat in a laboratory model of imiquimod-induced psoriasis.
Materials and methods: In the experiment, 40 inbred BALB/c mice were used, which were randomized into 4 groups of 10 each. An imiquimod-induced model of psoriasis was used. Mice of group No. I - without therapy (control), No. II - ointment (vaseline) containing 1% sivelestat, No. III - cream (lanolin + olive oil + water in equal proportions) containing 1% sivelestat, No. IV - betamethasone cream dipropionate 0.05%. Clinical assessment of skin rashes was performed using the PASI-modified method (mPASI), as well as histological and immunohistochemical examination of the skin.
Results: When evaluating clinical manifestations, it was found that the total mPASI index when using sivelestat cream decreased by 50%, and sivelestat ointment - by 36%. The histological examination showed that the thickness of the epidermis in the groups where the therapy was applied was 2.4-3.6 times less than in the control group. An immunohistochemical study of the skin found that after treatment with sivelestat, the number of CD3 + cells in the skin was 1.8-2.2 times less, and the level of proliferative activity (Ki-67 + cells) was 2.3-2.9 times less. lower than in the group without therapy
Conclusions: On a laboratory model of imiquimod-induced psoriasis, it was found that a serine protease inhibitor (sivelestat) has a therapeutic efficacy comparable to a strong topical glucocorticosteroid drug (betamethasone dipropionate 0.05%). A pronounced resolution of the elements of the skin rash, a reduction in the thickness of the epidermis, a decrease in skin infiltration with T-lymphocytes and a normalization of the rate of cell division of the epidermis and dermis are shown.
Suppression of the activity of IL-36-mediated inflammation in the skin by means of topical inhibitors of serine proteases is a promising new direction in the treatment of patients with psoriasis
Primary cutaneous plasmacytoma: a clinicopathological study of two cases with a long‐term follow‐up and review of the literature
No full text
Efficacy and Safety of Netakimab, A Novel Anti-IL-17 Monoclonal Antibody, in Patients with Moderate to Severe Plaque Psoriasis. Results of A 54-Week Randomized Double-Blind Placebo-Controlled PLANETA Clinical Trial
No full textAltres ajuts: Sponsorship for this study and the Rapid Service Fee were funded by JSC BIOCAD, Ul. Italianskaya 17, St Petersburg, Russia, 191186Introduction: Netakimab (NTK), an original humanized anti-interleukin-17 monoclonal antibody, showed therapeutic efficacy in moderate-to-severe plaque psoriasis in a phase 2 clinical study. Herein we report the results of 54 weeks of a phase 3 PLANETA trial aimed to evaluate the efficacy and safety of two NTK regimens vs. placebo. Methods: Two hundred thirteen patients with moderate-to-severe plaque psoriasis were randomly assigned to receive NTK 120 mg once every 2 weeks (NTK Q2W), NTK 120 mg once every 4 weeks (NTK Q4W) or placebo. During the first 3 weeks, patients received subcutaneous injections of NTK or placebo (according to the allocation) once a week. Patients in the NTK Q2W group then received NTK at weeks 4, 6, 8 and 10. Subjects in the NTK Q4W group received NTK at weeks 6 and 10 and placebo at weeks 4 and 8. Patients in the placebo group received placebo injections at weeks 4, 6, 8 and 10. Treatment was unblinded at week 12. During the open-label phase, patients in both NTK groups continued to receive NTK Q4W. The primary efficacy endpoint was the proportion of patients in each group who achieved a ≥ 75% reduction from baseline in psoriasis area and severity index (PASI 75) at week 12. Results: A total of 77.7%, 83.3% and 0% of patients had a PASI 75 response at week 12 in the NTK Q2W, NTK Q4W and placebo groups, respectively (P < 0.0001, Fisher's exact test, ITT). The effect was maintained throughout the 1-year treatment. NTK showed a good safety profile and low immunogenicity. Conclusion: Treatment with NTK results in high rates of sustained clinical response in patients with moderate-to-severe plaque psoriasis. The study is ongoing; thus, long-term use efficacy and safety data are forthcoming. Clinical Trial Registration: The trial is registered at the US National Institutes of Health (ClinicalTrials.gov; NCT03390101)
