1,721,017 research outputs found
Notification of undesirable effects of cosmetics and toiletries
No full textAn undesirable effect (UE) of a cosmetic product is a harmful reaction attributable to its normal or reasonably foreseeable use. However, the knowledge of UEs, at the population level, is limited by the absence of formal and reliable cosmetovigilance systems, which nevertheless are characterized by underreporting. To test the feasibility of the collection of UEs in our territory we have carried out a pilot project aimed to assess either the notification procedures or the validation/evaluation of the collected forms in our territory. As reporting categories, we have chosen dermatologists and community pharmacists who were asked to notify UEs to cosmetics through a reporting form we have set up. During the period July 2006-December 2007, we have registered 76 reporting forms. Dermatologists who have sent 47 reporting forms represented the main reporting category, followed by community pharmacists (15 reports), other health professionals (9 reports) and consumers (5 reports). Several drawbacks, mainly represented by the incompleteness and inaccuracy of the filled in forms, affected the validation process. Thus, on receipt, we could validate only 34 forms and only after a careful check with each single reporter, we could include in the study other 36 forms. The validation of the collected reports has stressed the importance of a well-structured reporting form, an easy access to notification procedures as well as education and training programme. The evaluation of the validated forms has revealed the need of a controlled term vocabulary for the classification of the observed events and diagnosis, especially with regard to cutaneous reactions that represented almost the totality of the reported events (95.7%). Among the events (n = 45) reported by dermatologists, 22 were diagnosed as allergic contact dermatitis (ACD) and 18 as irritant contact dermatitis (ICD). Facial care products (19.7%), followed by body care products (16.9%), perfumes (12.7%) and eye care products (11.3%) were the cosmetics mainly suspected to be responsible for the observed events. Correspondingly, face (n = 37), including periorbital and perioral area, forehead, ocular mucous membrane and lips, followed by entire body (n = 9) were the body sites reported as more involved. In conclusions, our experience allowed us to identify the main pitfalls of the system we have experienced. These are setting/formulation of the reporting form, notification step, description of the event and diagnosis. A careful settlement of these aspects could substantially contribute to the establishment of an efficient reporting system, although the bias due to underreporting is difficult to eliminate. © 2008 Elsevier Ltd. All rights reserved
DPP-4 inhibitors: Pharmacological differences and their clinical implications
Full text linkINTRODUCTION:
Recently, incretin-based therapy was introduced for the treatment of type 2 diabetes (T2D). In particular, dipeptidyl peptidase-4 inhibitors (DPP-4i) (sitagliptin, vildagliptin, saxagliptin, linagliptin and alogliptin) play an increasing role in the management of T2D.
AREAS COVERED:
An extensive literature search was performed to analyze the pharmacological characteristics of DPP-4i and their clinical implications.
EXPERT OPINION:
DPP-4i present significant pharmacokinetic differences. They also differ in chemical structure, in the interaction with distinct subsites of the enzyme and in different levels of selectivity and potency of enzyme inhibition. Moreover, disparities in the effects on glycated hemoglobin, glucagon-like peptide-1 and glucagon levels and on glucose variability have been observed. However, indirect comparisons indicate that all DPP-4i have a similar safety and efficacy profiles. DPP-4i are preferred in overweight/obese and elderly patients because of the advantages of minimal or no influence on weight gain and low risk of hypoglycemia. For the same reasons, DPP-4i can be safely combined with insulin. However, currently cardiovascular outcomes related to DPP-4i are widely debated and the available evidence is controversial. Today, long-term studies are still in progress and upcoming results will allow us to better define the strengths and limits of this therapeutic class
Biosimilars in the European Union from comparability exercise to real world experience: What we achieved and what we still need to achieve
No full textDipeptidyl Peptidase (DPP)-4 Inhibitor-Induced Arthritis/Arthralgia: A Review of Clinical Cases
Full text linkDipeptidyl peptidase (DPP)-4 inhibitors are a class of oral drugs used for the treatment of type 2 diabetes mellitus (T2DM). The pharmacological inhibition of DPP-4 seems to also induce adverse events related to cytokine-induced inflammation. Recently, several clinical cases regarding the association of DPP-4 inhibitors and the onset of arthritis/arthralgia have been reported in the literature. Various mechanisms could be responsible for DPP-4 inhibitor-induced arthritis/arthralgia, and the increase of cytokines, chemokines, matrix metalloproteinases (MMPs) and genetic factors plays an important role. The US FDA published a safety announcement regarding the entire drug class, encouraging healthcare professionals and patients to pay attention to the occurrence of arthralgia during treatment with DPP-4 inhibitors; arthralgia could be assessed as a class adverse drug event for DPP-4 inhibitors. To summarize the evidence on the correlation between DPP-4 inhibitors and arthritis/arthralgia, and to explain the measures taken by the FDA with regard to arthralgia risk, we performed a literature review of recent evidence concerning this association. This review shows the necessity of other studies to better define the association between DPP-4 inhibitors and arthritis/arthralgia
Drugs approved for the treatment of multiple sclerosis: review of their safety profile
Full text linkIntroduction: Multiple sclerosis (MS) is a chronic immune-mediated inflammatory disorder of the brain and spinal cord characterized by inflammation, demyelination, and axonal degeneration. Area covered: Even though the pharmacological armamentarium for MS treatment is considerably improved in the last 20 years, safety data especially for the second-line and innovative treatments are lacking. In order to analyze the safety profile of drugs used for the treatment of MS, a literature review of pre-marketing, post-marketing studies and case reports was performed. Expert opinion: Nowadays, the numerous drugs approved in the last years for the treatment of MS allow a better control of the disease and a better patient compliance. The main advantages of the new disease-modifying agents for MS (DMTs), in fact, derive from the new oral administration and the prolonged half-life with consequent improvement in compliance compared to first-line therapy which required subcutaneous administrations. However, DMTs can cause serious, sometimes life-threatening or fatal, drug adverse reactions. Due to the lack of safety data and given the recent marketing approval of the last DMTs for MS, observational studies and post-marketing surveillance activities will be necessary in order to improve the knowledge about the safety profile of these drugs and the improvement of their use in clinical practice. © 2017 Informa UK Limited, trading as Taylor & Francis Group
Drugs-induced pathological gambling: An analysis of italian spontaneous reporting system
No full textPathological gambling has been reported as a direct complication of Parkinson’s disease and its pharmacological treatment based on dopamine agonists. Moreover, further medications (not dopamine agonists) were associated to the occurrence of gambling disorder. We aim to analyze the spontaneous reports of gambling disorder on the whole Italian territory with a focus on Campania Region (Southern Italy) from January 1st 2002 to July 31st 2018. We analyzed gambling disorder’s reports across the 2002–2018 period in the Italian spontaneous reporting database (Rete Nazionale di Farmacovigilanza—RNF), with a focus on Campania region. 94 suspected cases of gambling disorder associated to apomorphine, aripiprazole, cabergoline, levodopa, levodopa and derivatives in association with entaca-pone/benserazide and carbidopa, pergolide, pramipexole, ropinirole, and rotigotine were reported into the RNF. Of these cases, two related to pramipexole and one to aripiprazole were sent to Campania Pharmacovigilance Regional Centre. Although it is widely recognized that dopamine agonists may induce behavioral disorders, Parkinson’s disease is itself associated to pathological gambling, compulsive shopping and eating. Since our results could not clarify the correlation between Parkinson’s disease, its pharmacological treatment and pathological gambling, in order to better define this correlation there is a need to conduct further ad hoc observational studies
New era in treatment options of chronic hepatitis C: focus on safety of new direct-acting antivirals (DAAs)
No full textIntroduction: New direct-acting antivirals have changed hepatitis C virus infection management extremely. Areas covered: The pharmacological management of HCV infection and the main characteristics of new DAA therapies have been discussed. In order to analyse safety data regarding DAA therapies, a narrative review was performed searching for safety results of main second generation DAAs pivotal and post-marketing studies. Data on main DAAs drug-drug interactions have also been discussed. Results of main DAAs pivotal studies revealed that these drugs were frequently associated to adverse events such as asthenia, headache, nausea, and insomnia. Although some of post-marketing studies confirmed the good tolerability profile already detected in the pre-marketing phase, real-world safety data showed that second generation DAAs can be associated to cutaneous, metabolic, pulmonary, hepatic, and renal adverse events. Expert opinion: Safety results of pivotal and post-marketing studies indicated that the most recently approved DAAs are well tolerated. However, considering the recent marketing approval of new DAAs, further observational studies and post-marketing surveillance activities will be necessary in order to improve the knowledge of their safety
Complete resistance after maximal dose of rocuronium
Full text linkRocuronium is a non-depolarizing neuromuscular blocking agent (NDNMBA), employed in the clinic as an adjunct to general anesthesia to facilitate tracheal intubation rapid sequence, and to provide skeletal muscle relaxation during surgery. Many cases of resistance to neuromuscular blocking agents (NMBAs) have been anecdotally reported. There are specific pathologic states, such as upper motor neuron lesions, severe thermal injuries, liver disease, renal failure, disuse atrophy, all of which show an increased resistance to the effects of nondepolarizing muscle relaxants. Also concurrent drug therapy can alter the efficacy of NMBAs such as some classes of antibiotics, furosemide, β receptor agonists, phosphodiesterase inhibitors, calcium antagonists, respiratory stimulants but also ketamine, propofol and barbiturates at high concentrations. In this scenario we describe an unusual case of 20-years-old man who showed a complete resistance to rocuronium maybe due to a glucocorticoids concomitant therapy
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