Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 69
Filter
1.
Cureus ; 16(2): e55116, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38558597

ABSTRACT

Across the globe, snake envenomation causes significant morbidity and mortality. Although many clinical presentations and complications are observed in different types of snake bites, the incidence of leukoencephalopathy is rare. Although most cases of leukoencephalopathy are seen in viper bites, they are rarely seen in neurotoxic snake bites. In this report, we present a unique case of snake bite-induced leukoencephalopathy following a neurotoxic snake bite. The case highlights the importance of considering this rare complication in cases of snake bites presenting with neurological symptoms, particularly in those affecting higher mental functions.

2.
Ann Neurosci ; 30(2): 100-108, 2023 Apr.
Article in English | MEDLINE | ID: mdl-37706098

ABSTRACT

Background: The worldwide spread of COVID-19 infection and its preventive measures has resulted in global disruption of overall functioning of the individuals. In the post-COVID period, several stressors associated with the pandemic have exacerbated adjustment problems in students and impacted their mental health. Purpose: The study aims to assess the Academic Stress and Emotional Adjustment of male and female secondary school students in Uttar Pradesh, post-COVID-19 pandemic lockdown. Methods: A sample of 500 students from various schools in Uttar Pradesh pursuing high school were included in the study. A purposive sampling technique was employed for data collection based on inclusion and exclusion criteria. The Scale for Assessing Academic Stress and the Adolescents Emotional Adjustment Inventory were used to assess the academic stress and emotional adjustment of secondary school students post-COVID-19 pandemic lockdown. Results: The results of the study revealed that there was a significant difference in academic stress and emotional adjustment between male and female secondary school students. A significant positive relationship between academic stress and emotional adjustment was found, which indicates a high level of academic stress perpetuates emotional maladjustment. Furthermore, it was found that the level of academic stress and emotional adjustment were higher among females as compared to males. Conclusion: It can be concluded that the extended impact of COVID-19 has led to a surfeited level of distress propounding that females are more predisposed to academic stress and tend to have poor emotional adjustment than their male counterparts.

3.
Med Oncol ; 40(10): 299, 2023 Sep 15.
Article in English | MEDLINE | ID: mdl-37713162

ABSTRACT

Anaplastic thyroid cancer (ATC) is a rare and aggressive disease with 90% of patients succumbing to this disease 1 year after diagnosis. The approval of the combination therapy of a BRAF inhibitor dabrafenib with the MEK1/2 inhibitor trametinib has improved the overall survival of ATC patients. However, resistance to therapy remains a major problem. We have previously demonstrated combined inhibition of Src with dasatinib and MEK1/2 with trametinib synergistically inhibits growth and induces apoptosis in BRAF- and RAS-mutant thyroid cancer cells, however PIK3CA-mutant cells exhibit a mixed response. Herein, we determined that AKT is not a major mediator of sensitivity and instead PIK3CA-mutants that are resistant to combined dasatinib and trametinib have sustained activation of PDK1 signaling. Furthermore, combined inhibition of PDK1 and MEK1/2 was sufficient to reduce cell viability. These data indicate PDK1 inhibition is a therapeutic option for PIK3CA mutations that do not respond to combined Src and MEK1/2 inhibition.


Subject(s)
Thyroid Carcinoma, Anaplastic , Thyroid Neoplasms , Humans , Proto-Oncogene Proteins c-akt , Dasatinib/pharmacology , Proto-Oncogene Proteins B-raf , Thyroid Neoplasms/drug therapy , Thyroid Neoplasms/genetics , Thyroid Carcinoma, Anaplastic/drug therapy , Thyroid Carcinoma, Anaplastic/genetics , Class I Phosphatidylinositol 3-Kinases/genetics
4.
World Allergy Organ J ; 16(6): 100788, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37389200

ABSTRACT

Vernal keratoconjunctivitis (VKC) is a severe ocular allergic disease characterized by chronic inflammation of the cornea and conjunctiva that may lead to loss of visual acuity and blindness. The disease occurs primarily in children and is more common in geographical regions characterized by warm temperatures and high humidity. The clinical manifestations of VKC, when inadequately treated, may lead to severe complications and corneal damage. The prevalence of allergen sensitization, specific serum immunoglobulin E (IgE), and specific tear IgE was reported in approximately 55%-60% of patients with VKC, confirming the involvement of IgE-mediated and non-IgE-mediated mechanisms in the pathophysiology of the condition. This article explores current knowledge on the immunological pathways of VKC and the role of the monoclonal anti-IgE antibody, omalizumab, in its management. The review evaluated the effects of omalizumab beyond the direct IgE-mediated reactions and discusses its potential as a therapeutic target for VKC. Multiple retrospective analyses, case series, and case reports have reported the effectiveness of omalizumab in the management of VKC. A summary of the clinical data from these studies revealed that in children with VKC omalizumab treatment was well tolerated with improvement or resolution of ocular symptoms, reduction in steroid use, and enhancement of quality of life. Omalizumab may serve as a promising treatment option for VKC due to its ability to target both IgE-mediated and non-IgE-mediated pathophysiological pathways. Larger, controlled clinical trials are needed to support these findings.

5.
Luminescence ; 38(9): 1607-1617, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37350180

ABSTRACT

A dysprosium (Dy3+ )-activated potassium calcium silicate (K4 CaSi3 O9 ) phosphor was prepared using a solid-state synthesis route. The phosphor had a cubic structure with the space group Pa 3 ¯ as confirmed using X-ray diffraction (XRD) measurements. Details of surface morphology and elemental composition of the as-synthesized undoped KCS phosphor was obtained using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy. The chemical structure as well as the vibrational modes present in the as-prepared KCS phosphor was analyzed using Fourier transform infrared (FT-IR) spectroscopy. Diffuse reflectance spectra (DRS) were used to determine the optical bandgap of the phosphors and were found to be in the optical range 3.52-3.71 eV. Photoluminescence (PL) spectra showed intense yellow emission corresponding to the 4 F9/2 →6 H13/2 transition under 350 nm excitation. Commission International de l'Eclairage colour chromaticity coordinates were evaluated using the PL spectral data lie within the white region. Dexter theory and the Inokuti-Hirayama (I-H) model were applied to study the nature of the energy transfer mechanism in the as-prepared phosphors. The relatively high activation energy of the phosphors was evaluated using temperature-dependent PL (TDPL) data and confirmed the high thermal stability of the titled phosphor. The abovementioned results indicated that the as-prepared KCS:Dy3+ phosphor was a promising candidate for n-UV-based white light-emitting diodes.


Subject(s)
Luminescence , Luminescent Agents , Luminescent Agents/chemistry , Spectroscopy, Fourier Transform Infrared , Calcium Compounds
6.
Ann Neurosci ; 30(1): 54-69, 2023 Jan.
Article in English | MEDLINE | ID: mdl-37313338

ABSTRACT

Background: The existing structural framework of defining gender and sexuality based on heteronormative ideology led to the succession of the notions of stigma, prejudice, and hate towards the sexual and gender minority population. The presence of strong scientific evidence for the negative consequences of discriminatory and violent events has directed the association with mental and emotional distress. This study aims to comprehend the role of minority stress in emotional regulation and suppression among the sexual minority population globally using systematic review of literature through elaborate Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Summary: The analyses of the sorted literature premised on the PRISMA guidelines revealed that minority stress mediates the emotion regulation processes among the individuals who witness continuous episodes of discrimination and violence leading to emotional dysregulation and emotion suppression. Studies also reported the dominance of various health-risk behaviors such as alcohol addiction, drug abuse, and other forms of intoxication among sexual minority individuals. Increased instances of anxiety, stress, depression, and suicidal ideations were prominent in the findings of the empirical research suggesting an intricate role of minority stress in advancing the faulty emotion suppression and mental health concerns among the sexual and gender minority population. Key message: Minority stressors among sexual and gender minority individuals mediate emotion suppression and mental distress.

8.
Cancers (Basel) ; 15(2)2023 Jan 06.
Article in English | MEDLINE | ID: mdl-36672327

ABSTRACT

Patients with advanced thyroid cancer, including advanced papillary thyroid cancer and anaplastic thyroid cancer (ATC), have low survival rates because of the lack of efficient therapies available that can combat their aggressiveness. A total of 90% of thyroid cancers have identifiable driver mutations, which often are components of the MAPK pathway, including BRAF, RAS, and RET-fusions. In addition, Src is a non-receptor tyrosine kinase that is overexpressed and activated in thyroid cancer, which we and others have shown is a clinically relevant target. We have previously demonstrated that combined inhibition of Src with dasatinib and the MAPK pathway with trametinib synergistically inhibits growth and induces apoptosis in BRAF- and RAS-mutant thyroid cancer cells. Herein, we identified the pro-apoptotic protein BCL2L11 (BIM) as being a key mediator of sensitivity in response to combined dasatinib and trametinib treatment. Specifically, cells that are sensitive to combined dasatinib and trametinib treatment have inhibition of FAK/Src, MEK/ERK, and AKT, resulting in the dramatic upregulation of BIM, while cells that are resistant lack inhibition of AKT and have a dampened induction of BIM. Inhibition of AKT directly sensitizes resistant cells to combined dasatinib and trametinib but will not be clinically feasible. Importantly, targeting BCL-XL with the BH3-mimeitc ABT-263 is sufficient to overcome lack of BIM induction and sensitize resistant cells to combined dasatinib and trametinib treatment. This study provides evidence that combined Src and MEK1/2 inhibition is a promising therapeutic option for patients with advanced thyroid cancer and identifies BIM induction as a potential biomarker of response.

9.
Article in English | MEDLINE | ID: mdl-35611818

ABSTRACT

Vernal keratoconjunctivitis (VKC) is a form of ocular allergy primarily affecting children. Considered a rare disease in Europe, its prevalence varies by geographic region and is poorly studied in the United Kingdom. There is considerable national variation in the management of VKC within the United Kingdom, risking misdiagnosis and delays to treatment for some children. This can significantly impact their quality of life, with the potential for lasting negative consequences. Based on discussions between experienced clinicians from six large centers across the United Kingdom, this article describes best practice recommendations for United Kingdom settings, including principles for diagnosis, referral, initial and long-term management, and supportive care. Recommendations include guidance on referral timing, which should depend on VKC severity, and a stepwise approach to treatment. Joint management by primary care and secondary care is recommended and the importance of supportive care, including emotional support and outreach to schools, is highlighted. Because frequent flareups are common in VKC, it is essential that families have access to the information they need to manage the disease and routes to access rapid care if needed. A thorough understanding of the nature of VKC, its triggers, and how best to manage it, by both patients and their families, is critical to ensuring appropriate management and to improving patient outcomes. [J Pediatr Ophthalmol Strabismus. 2023;60(1):6-17.].


Subject(s)
Conjunctivitis, Allergic , Humans , Child , Conjunctivitis, Allergic/diagnosis , Conjunctivitis, Allergic/epidemiology , Conjunctivitis, Allergic/therapy , Quality of Life , Eye , United Kingdom/epidemiology , Prevalence
10.
Ind Psychiatry J ; 32(2): 402-409, 2023.
Article in English | MEDLINE | ID: mdl-38161477

ABSTRACT

Background: Investigating the core component of social cognition, known as the theory of mind (ToM), becomes imperative in patients with moderate-to-severe traumatic brain injury (TBI) as they may present with social cognitive deficit-related disability interfering with patients' functional and behavioral status. Aims: This study aimed to investigate the neurocognitive and behavioral predictors of the ToM in patients with traumatic brain injury (PtTBI). Settings and Design: Thirty PtTBI and 30 healthy controls (HCs) were assessed on a set of tasks. Methods and Material: The assessment included ToM tasks (cognitive and affective, verbal and nonverbal, and first-order and second-order) along with various neuropsychological (NP) assessments to explore their memory, executive functioning, and intelligence. Further, TBI participants also underwent behavioral and functional outcome measures using the Functional Status Examination (FSE) and the Neurobehavioral Rating Scale (NBRS). Statistical Analysis: The obtained data were analyzed using descriptive statistics and regression analyses. Results: Findings confirmed ToM deficit across all modes of ToM tasks in PtTBI and implicated the role of executive function and working memory in the expression of ToM in this group. While cognitive faux pas (FPC) and first-order false belief together could explain poor performance on NBRS, the nonverbal ToM task predicts functional outcome in PtTBI. Conclusions: These findings have practical implications as they promote cognitive remediation intervention focused on restoring ToM, which may improve functional limitations and resulting disability in PtTBI.

12.
Metallomics ; 14(9)2022 09 01.
Article in English | MEDLINE | ID: mdl-35929804

ABSTRACT

Copper is essential in a host of biological processes, and disruption of its homeostasis is associated with diseases including neurodegeneration and metabolic disorders. Extracellular copper shifts in its speciation between healthy and disease states, and identifying molecular components involved in these perturbations could widen the panel of biomarkers for copper status. While there have been exciting advances in approaches for studying the extracellular proteome with mass spectrometry-based methods, the typical workflows disrupt metal-protein interactions due to the lability of these bonds either during sample preparation or in gas-phase environments. We sought to develop and apply a workflow to enrich for and identify protein populations with copper-binding propensities in extracellular fluids using an immobilized metal affinity chromatography (IMAC) resin. The strategy was optimized using human serum to allow for maximum quantity and diversity of protein enrichment. Protein populations could be differentiated based on protein load on the resin, likely on account of differences in abundance and affinity. The enrichment workflow was applied to plasma samples from patients with Wilson's disease and protein IDs and differential abundancies relative to healthy subjects were compared to those yielded from a traditional proteomic workflow. While the IMAC workflow preserved differential abundance and protein ID information from the traditional workflow, it identified several additional proteins being differentially abundant including those involved in lipid metabolism, immune system, and antioxidant pathways. Our results suggest the potential for this IMAC workflow to identify new proteins as potential biomarkers in copper-associated disease states.


Subject(s)
Copper , Proteomics , Chromatography, Affinity/methods , Copper/metabolism , Humans , Mass Spectrometry , Proteome/analysis , Proteomics/methods
13.
Indian J Psychiatry ; 64(1): 73-79, 2022.
Article in English | MEDLINE | ID: mdl-35400746

ABSTRACT

Introduction: Conversion disorder is easily one of the least understood neuropsychiatric disorders. There is a great deal of ambiguity with respect to symptom presentation, assessment, etiology, diagnosis, and treatment. However, a common clinical practice associated with the assessment and management of the conversion disorder is the evaluation of a stressor. Recent studies in India have indicated that family stressors are the most frequent. Sociocultural aspects of the client's environment and the illness experience thus form an important part of the client's diagnostic formulation. These aspects also determine help-seeking, treatment adherence, and thus, the outcomes. Materials and Methods: Fifteen clients suffering from conversion disorder in a tertiary mental health setting in North India, recruited through purposive sampling, were interviewed in-depth. Data were elicited using the cultural formulation interview (CFI). Qualitative content analysis was carried out. Results: The content analyses summarized the cultural experiences of clients suffering from conversion disorder under structured domains of the CFI. The results are presented in tables along with content examples and represent individual client experiences and conceptualizations of diagnosis, treatment, and implications of suffering from conversion disorder. The findings of this study aim to describe and highlight the cultural experiences of clients with respect to their psychopathology. The most striking recurrent theme in the cultural formulations were the lack of understanding of the nature and cause of illness both in the client as well as the clinician, and therefore a lack of trust and hope in the treatment. Conclusion: The findings of the current study shed light on the cultural experiences of clients with conversion disorder. These findings emphasize the need for clinicians to incorporate the individual and collective cultural experiences of clients and cultural sensitivity in addition to the clinical diagnoses. The Cultural Formulation Interview of the DSM-5 was found to be very helpful in this regard and we encourage its use by clinicians, especially with clients suffering from conversion disorder, given the strong influences of socio-cultural experiences on psychopathology as well as the intervention.

14.
Allergy ; 77(3): 991-1003, 2022 03.
Article in English | MEDLINE | ID: mdl-34320250

ABSTRACT

BACKGROUND: The benefit of daily administration of Peanut (Arachis hypogaea) Allergen Powder-dnfp (PTAH)-formerly AR101-has been established in clinical trials, but limited data past the first year of treatment are available. This longitudinal analysis aimed to explore the impact of continued PTAH therapeutic maintenance dosing (300 mg/day) on efficacy, safety/tolerability, and food allergy-related quality of life. METHODS: We present a subset analysis of PALISADE-ARC004 participants (aged 4-17 years) who received 300 mg PTAH daily for a total of ~1.5 (Group A, n = 110) or ~2 years (Group B, n = 32). Safety assessments included monitoring the incidence of adverse events (AEs), accidental exposures to food allergens, and adrenaline use. Efficacy was assessed by double-blind, placebo-controlled food challenge (DBPCFC); skin prick testing; peanut-specific antibody assays; and Food Allergy Quality of Life Questionnaire (FAQLQ) and Food Allergy Independent Measure (FAIM) scores. RESULTS: Continued maintenance with PTAH increased participants' ability to tolerate peanut protein: 48.1% of completers in Group A (n = 50/104) and 80.8% in Group B (n = 21/26) tolerated 2000 mg peanut protein at exit DBPCFC without dose-limiting symptoms. Immune biomarkers showed a pattern consistent with treatment-induced desensitization. Among PTAH-continuing participants, the overall and treatment-related exposure-adjusted AE rate decreased throughout the intervention period in both groups. Clinically meaningful improvements in FAQLQ and FAIM scores over time suggest a potential link between increased desensitization as determined by the DBPCFC and improved quality of life. CONCLUSIONS: These results demonstrate that daily PTAH treatment for peanut allergy beyond 1 year leads to an improved safety/tolerability profile and continued clinical and immunological response.


Subject(s)
Food Hypersensitivity , Peanut Hypersensitivity , Administration, Oral , Adolescent , Allergens , Arachis/adverse effects , Child , Child, Preschool , Desensitization, Immunologic/adverse effects , Desensitization, Immunologic/methods , Food Hypersensitivity/etiology , Humans , Immunologic Factors , Peanut Hypersensitivity/diagnosis , Peanut Hypersensitivity/etiology , Peanut Hypersensitivity/therapy , Quality of Life
15.
J Allergy Clin Immunol Pract ; 10(1): 11-17, 2022 01.
Article in English | MEDLINE | ID: mdl-34656799

ABSTRACT

Although there is a general perception that the prevalence of food allergy is increasing, data supporting this are limited. Food is the least common cause of fatal anaphylaxis, and fortunately, it is a very rare event; however, it is also unpredictable. There is widespread consensus that severe reactions cannot be predicted in a clinically meaningful way. Certain food triggers are more frequently associated with fatal anaphylaxis than others. In observational studies, peanut and tree nuts account for at least 30% to 50% of fatalities, with seafood and cow's milk also associated with fatal reactions. Fatal food-induced anaphylaxis is most likely to occur during adolescence and young adulthood, although the reasons for this are unclear. International guidelines agree that intramuscular (IM) epinephrine is the treatment of choice for managing food-triggered anaphylaxis and has a good safety profile when given by the IM route. However, fatalities still occur despite the timely administration of epinephrine. Food-allergic individuals must navigate a world that requires daily vigilance for allergens and preparedness for allergic reactions. Although the actual risk of fatal reactions is minimal, it is not zero, and severe reactions are unpredictable. Clinicians need to help patients better understand the very low but real risk of fatal reaction and enable them to lead as normal a life as possible through appropriate education, safety netting, and risk reduction.


Subject(s)
Anaphylaxis , Food Hypersensitivity , Adult , Allergens , Anaphylaxis/diagnosis , Anaphylaxis/epidemiology , Animals , Cattle , Epinephrine , Food Hypersensitivity/diagnosis , Food Hypersensitivity/epidemiology , Humans , Nuts , Young Adult
17.
J Allergy Clin Immunol Pract ; 9(5): 1879-1889.e13, 2021 05.
Article in English | MEDLINE | ID: mdl-33359589

ABSTRACT

BACKGROUND: The randomized, controlled PALISADE trial demonstrated the benefit of daily oral immunotherapy with Peanut (Arachis Hypogaea) allergen powder-dnfp (PTAH, formerly AR101) in peanut-allergic children and adolescents. OBJECTIVE: ARC004, the open-label follow-on study to PALISADE, used 5 dosing cohorts to explore PTAH treatment beyond 1 year and alternative dosing regimens in peanut-allergic individuals. METHODS: Active arm (PTAH-continuing) PALISADE participants who tolerated 300-mg peanut protein at the exit double-blind placebo-controlled food challenge and placebo arm (PTAH-naive) participants could enter ARC004. PTAH-continuing participants were assigned to receive daily (cohorts 1 and 3A) or non-daily (cohorts 2, 3B, and 3C) dosing regimens; PTAH-naive participants were built up to 300 mg/d PTAH, followed by maintenance dosing. At study completion, participants underwent an exit double-blind placebo-controlled food challenge with doses up to 2000 mg peanut protein. Data were assessed using descriptive statistics. RESULTS: Overall, 358 (87.5%) eligible participants (4-17 years) entered ARC004 (PTAH-continuing, n = 256; PTAH-naive, n = 102). Among PTAH-continuing participants, exposure-adjusted adverse event rates were 12.94 to 17.54/participant-year and 25.95 to 42.49/participant-year in daily and non-daily dosing cohorts, respectively; most participants (83%) experienced mild or moderate adverse events. Daily dosing cohorts appeared to have higher desensitization rates than non-daily dosing cohorts. Of all PTAH-continuing cohorts, cohort 3A had the longest daily dosing duration and the highest desensitization rates. Changes in immune markers with PTAH continuation demonstrated ongoing immunomodulation. Outcomes in PTAH-naive participants mirrored those of the PALISADE active arm. CONCLUSIONS: Continued daily PTAH treatment beyond 1 year showed sustained safety and efficacy. Ongoing immunomodulation was observed during the second year of treatment.


Subject(s)
Peanut Hypersensitivity , Administration, Oral , Adolescent , Allergens , Arachis , Child , Desensitization, Immunologic , Double-Blind Method , Humans , Peanut Hypersensitivity/therapy
18.
Indian J Psychol Med ; 43(6): 492-499, 2021 Nov.
Article in English | MEDLINE | ID: mdl-35210677

ABSTRACT

BACKGROUND: In the Indian setting, several studies have documented that dissociative disorders (DDs) are more common in females, and the most commonly elicited stressors are interpersonal. However, much of the research up to now has been quantitative. There is a notable paucity of qualitative studies exploring the subjective experiences of women with DD. Therefore, the present study sought to explore and gain an in-depth understanding of the lived experiences of women diagnosed with DD. METHODS: Five women were recruited who were seeking psychological treatment for dissociative symptoms at a tertiary care neuropsychiatric institute in North India. In-depth interviews were conducted with each, and the transcripts were analyzed using the analytic method of interpretative phenomenological analysis. RESULTS: Three superordinate themes that emerged were: patients' illness perspectives, the salience of relationships, and dealing with relationship conflicts. CONCLUSIONS: Our findings highlight the role of culture in influencing the participants' illness perspectives. Women with DD tend to define their self in relational terms and, thus, inhibit the expression of one's needs and opinions, to avoid conflict and to maintain harmony in relationships.

19.
PLoS One ; 15(12): e0241648, 2020.
Article in English | MEDLINE | ID: mdl-33270629

ABSTRACT

RATIONALE: Food allergy is documented to result in considerable morbidity, negative impact on quality of life, and substantial medical care costs. Although anecdotal data suggest widely varying practices in the diagnosis and management of food allergies, the diversity and relative frequency of these practices have not been documented. METHODS: A questionnaire was developed evaluating allergists' management approaches of individuals with peanut allergy (PA) in Germany (DE), France (FR), and the United Kingdom (UK). RESULTS: Here, we report the survey results from a total of 109 allergists from DE, FR and the UK. They reported to confirm PA at initial diagnosis using skin prick test (≥60%), while allergists from DE and FR reported using allergen-specific IgE testing more (>86%) compared to the UK (<50%). At initial diagnosis, oral food challenge was used less in DE (13%) and FR (14%) and very rarely in the UK (3%) to confirm diagnosis. Recognition of acute reactions, use of adrenaline auto-injectors and allergen avoidance were reported to be discussed with the patient/caregiver at the initial office visit by most allergists (>75%). Half of the responders reported assessing the patient's quality of life. 63% allergists reported retesting for PA resolution at a later date, with 45% allergists indicated to recommend ingestion of a normal serving of peanut regularly upon resolution. Lack of effective PA treatment was reported to be a 'very significant' barrier for optimal PA treatment, with allergists being less than 'moderately familiar' with data from clinical trials testing new treatments options for PA. Lastly, allergists stated that the severity of patient's PA ranked as the most important factor in their decision to recommend oral immunotherapy for PA treatment. CONCLUSIONS: This survey provides essential insights into the practice of allergists and highlights some areas that would inform strategies for education and improving PA healthcare.


Subject(s)
Allergens/adverse effects , Arachis/adverse effects , Food Hypersensitivity/epidemiology , Peanut Hypersensitivity/epidemiology , Adolescent , Allergens/immunology , Allergists/psychology , Arachis/immunology , Child , Child, Preschool , Epinephrine/therapeutic use , Europe/epidemiology , Female , Food Hypersensitivity/immunology , France/epidemiology , Humans , Immunoglobulin E/blood , Immunoglobulin E/immunology , Male , Peanut Hypersensitivity/blood , Peanut Hypersensitivity/immunology , Peanut Hypersensitivity/pathology , Practice Patterns, Physicians'/trends , Quality of Life , Skin Tests , Surveys and Questionnaires , United Kingdom/epidemiology
20.
Lancet Child Adolesc Health ; 4(10): 728-739, 2020 10.
Article in English | MEDLINE | ID: mdl-32702315

ABSTRACT

BACKGROUND: Peanut allergy is the leading cause of food-related anaphylaxis. Current management options can negatively affect food allergy-related quality of life. We aimed to investigate the efficacy of an investigational oral biologic drug (AR101). METHODS: The AR101 Trial in Europe Measuring Oral Immunotherapy Success in peanut-allergic children (ARTEMIS) trial was a multicentre, double-blind, randomised, placebo-controlled phase 3 trial done at 18 hospitals in Ireland, France, Germany, Italy, Spain, Sweden, and the UK. Children and adolescents with peanut allergy, aged 4-17 years, who developed dose-limiting symptoms to 300 mg or less peanut protein (equivalent to approximately one peanut kernel) during a double-blind placebo-controlled food challenge test at study entry were enrolled. Participants were randomly assigned (3:1) to receive daily doses of either AR101 oral immunotherapy (AR101 group) or a taste-masked placebo (placebo group). All participants, investigators, and care providers were masked to treatment allocation until the study was completed. Doses were increased every 2 weeks over 6 months until a dose of 300 mg was reached and maintained for 3 months. The primary endpoint was the proportion of participants in the intention-to-treat or safety population (defined as those participants who had been randomly assigned and had received at least one dose of the assigned drug) who could consume a single dose of 1000 mg (cumulative dose 2043 mg) peanut protein without developing dose-limiting allergic symptoms at an exit double-blind placebo-controlled food challenge after 9 months of treatment. Additional endpoints included safety (ie, the frequency and severity of adverse events) and changes in food allergy-related quality of life, assessed by use of age-appropriate Food Allergy Quality of Life Questionnaires (FAQLQs) and the Food Allergy Independent Measure (FAIM). The study is registered with ClinicalTrials.gov, NCT03201003, and is completed. FINDINGS: Between June 12, 2017, and Feb 15, 2018, 227 patients were screened, of whom 175 were randomly assigned to the AR101 group (n=132) and the placebo group (n=43). All primary and secondary endpoints were met. 77 (58%) of 132 participants in the AR101 group tolerated 1000 mg peanut protein at the exit food challenge versus one (2%) of 43 participants in the placebo group (AR101-placebo treatment difference 56·0% [95% CI 44·1-65·2], p<0·0001). Adverse events were reported by almost all participants. The maximum severity of adverse events reported was mild or moderate for most participants who received AR101 (mild, 66 [50%] of 132 participants; moderate, 63 [48%]; and severe, one [1%]) or placebo (mild, 24 [56%] of 43 participants; moderate, 18 [42%]; severe, none). Participants aged 8-12 years in the AR101 group reported improvements that exceeded the minimum clinically important difference between the two groups across all FAQLQ domains. Additionally, participants in the AR101 group and their caregivers reported improvements that exceeded the minimum clinically important difference in FAIM domains related to the perceived likelihood and outcomes of a severe allergic reaction. INTERPRETATION: AR101 oral immunotherapy treatment led to rapid desensitisation to peanut protein, with a predictable safety profile that improved with treatment, and an associated improvement in self-reported and caregiver-reported food allergy-related quality of life. These patient-oriented outcomes provide invaluable data to help physicians, patients, and caregivers make informed, shared decisions on the management of peanut allergy. FUNDING: Aimmune Therapeutics.


Subject(s)
Allergens/administration & dosage , Biological Products/administration & dosage , Desensitization, Immunologic/methods , Peanut Hypersensitivity/therapy , Administration, Oral , Adolescent , Child , Child, Preschool , Dose-Response Relationship, Immunologic , Double-Blind Method , Europe , Female , Humans , Male , Peanut Hypersensitivity/immunology , Skin Tests , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL
...