The purpose of the present review is to examine the hypersensitivity reactions to preservatives in topical ophthalmic therapies. Ocular hypersensitivity reactions to different types of preservatives in different chemical classes of topical ophthalmic treatments reviewed in the literature include IgE-mast cell mediated, cell mediated and toxic. Quaternary ammoniums (benzalkonium chloride) are most commonly (8% reported cases in OVID and PubMED based searches) associated with irritant toxic reactions whereas the organomercurials (thimerosal) and the alcohols (chlorobutanol) have the highest association (19% of OVID and 14% of PubMED based searches and 20% of OVID and 11% of PubMED searches), respectively, with allergic responses although the term allergy for the ‘alcohols’ appears to be actually an irritant effect whereas the organomercurials appear to truly interact with the immune system as neoantigens. A large number of clinical and experimental studies reveal that preservatives in topical ophthalmic medications have been demonstrated to produce effects from inflammation/hypersensitivity to permanent cytotoxic effects involving all structures of the eye.
Current treatment options for allergic rhinoconjunctivitis include topical antihistamines, vasoconstrictors, mast cell stabilizers, intranasal corticosteroids (INCS), and nonsteroidal anti-inflammatory drugs that are generally used as a supplement to oral or intranasal therapies, necessitating the use of multiple treatments for the different symptoms of allergic rhinitis (AR). To assess the efficacy of INCS for ocular symptoms (OS) of AR. A search was performed of clinical trials (n = 32) from 1973 to 2009 of English articles (Medline, Embase, and PubMed) using “intranasal corticosteroid,” “allergic rhinitis,” “ocular symptoms,” “allergic conjunctivitis,” and “rhinoconjunctivitis” as key words. Quality assessment for the 32 eligible studies was performed using the Jadad score. Statistical analysis for continuous data was done by weighted mean difference or standardized mean difference. Thirty-two trials were included and separated into three different groups. The overall weighted mean was obtained from the Jadad score and came out to 9.29 (95% CI, 8.7‐9.88). For meta-analysis for total OS scores and individual symptoms (10 parallel studies) the weighted mean was 10.17 (95% CI, 9.34‐11). In the parallel studies, meta-analysis of individual symptoms (nine studies) gave a weighted mean of 10.09 (95% CI, 9.55‐10.63). For eye symptoms but no individual symptoms (13 studies), the weighted mean was 8.56 (95% CI, 7.66‐9.46). To date, clinical studies conducted statistically showed the efficacy of INCS on the OS of AR as evidenced by the meta-analysis results for the studies reporting total OSs.
Pharmacogenomics (PGx) has emerged as a powerful tool to personalize drug selection and dosing based on a patient’s genetic profile. However, there are a range of challenges that impede uptake in current clinical practice. For example, clinicians often express frustration with commercially available PGx panel tests, which fail to consistently include all key actionable PGx genes (according to the Clinical Pharmacogenetics Implementation Consortium (CPIC), Food and Drug Administration (FDA) PGx guidelines, or The Dutch Pharmacogenetics Working Group (DPWG) guidelines) and instead are too long with clinically unimportant information (unvalidated genotypes). Additionally, the lack of EMR integration, clinician education and awareness of the benefits of PGx impedes uptake. This paper examines key challenges identified in clinical practice and proposes future directions, focusing on limiting PGx reports to essential data, providing point-of-prescription alerts, and establishing reimbursement pathways that encourage adoption. Future directions include leveraging large language models, integrating point-of-prescription alerts and phenoconversion calculators into the electronic medical record, increasing the genomic diversity of PGx study populations, and streamlining coverage by payers.
1 July 2011 in Expert Review of Clinical Immunology
Oralair(®) is a sublingual grass pollen immunotherapy tablet that was authorized for use in Europe on 26 November 2009 and is currently in Phase III clinical trials in the USA. It is indicated for the management of grass pollen allergic rhinitis with or without conjunctivitis in adults, adolescents and children (above the age of 5) with clinically relevant symptoms, confirmed by a positive cutaneous test and/or a positive titer of the specific IgE to the grass pollen. Treatment is composed of an initiation phase (3-day dose escalation: 100 IR [index of reactivity] on day 1, 200 IR on day 2 and 300 IR on day 3) and a continuation phase at a dosage of 300 IR/day. Treatment is scheduled to start approximately 4 months before the actual start of the pollen season and should be continued throughout the season. The treatment should be prescribed and initiated by an experienced allergy specialist.
Approximately 1.4 million Americans are diagnosed with diabetes each year, and diabetes is one of the most common progressive conditions in the world (1,2) Approximately 1.4 million Americans are diagnosed with diabetes each year, and diabetes is one of the most common progressive conditions in the world (1,2)