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PubMedDate not supplied

Narcolepsy in children: a practical guide to its diagnosis, treatment and follow-up.

Narcolepsy is a neurological syndrome characterised by daytime somnolence and cataplexy which often begins in childhood. Failing to recognise the condition may lead to mislabelling a child as lazy or depressed. The diagnostic criteria for narcolepsy vary with age. In children 8 years and older a Multiple Sleep Latency Test with an average latency of less than 8 minutes, and 2 or more sleep onset REM episodes supports the diagnosis. Human leucocyte antigen (HLA) marker DQbeta1 -0602 has been associated with narcolepsy. The current evidence supports the hypothesis that transmission of narcolepsy is multifactorial. with at least two genes, one of which is non-HLA related. The goal of all therapeutic approaches in narcolepsy is to control the narcoleptic symptoms and allow the patient to continue to fully participate in personal and academic activities. This usually requires a combination of behavioural therapy along with medication. Medications for patients with excessive sleepiness are usually stimulants, including amphetamines. However, a novel wake promoting agent, modafinil, is now available. Cataplexy can be controlled by medications with noradrenergic reuptake-blocking properties, such as clomipramine and fluoxetine, through their active metabolites. Increased awareness of narcolepsy is important to allow earlier diagnosis. Research on the effects different medications have, specifically on children with narcolepsy, has been very limited.

Child↗
PubMed2006

Concomitant medications may not improve outcome of antipsychotic monotherapy for stabilized patients with nonacute schizophrenia.

BACKGROUND: There are virtually no controlled data suggesting that concomitant psychotropic medications (CPMs) improve outcome in schizophrenia after the acute phase. Despite that, polypharmacy (with all of its disadvantages) is far more common than monotherapy. To our knowledge, there have been no published reports of prospective systematic investigations of the efficacy of unrestricted CPM use in nonacute schizophrenia. METHOD: This was a naturalistic, systematic study using a sample of 53 stabilized patients with DSM-IV-TR schizophrenia from 1 clinical practice setting including both private patients and patients from controlled research studies of the effectiveness of antipsychotics. Since there are meager controlled or systematic data on the effectiveness of CPM use with antipsychotics in nonacute schizophrenia, we tested the clinical strategy of CPM use by gradually tapering all CPMs (except antianxiety agents). The aim was to determine if the CPM improved outcome, had no effect, or worsened outcome using the Clinical Global Impressions-Improvement scale before and after taper, over at least 3 months and in some cases up to 18 months after discontinuation. Data were gathered from July 2002 to June 2005. RESULTS: For 21 patients undergoing 22 antidepressant tapers, no change was noted in 18 of 22 tapers, while in 3 improvement was noted and in 1 worsening was noted. For the 12 patients on treatment with mood stabilizers, no change was noted in 10 of 13 discontinuations, while in 3 mild worsening was noted. One patient was on treatment with both modafinil and trazodone and reported no change after tapering each in separate discontinuation trials, while another 3 patients were taking sleeping medications and also noted no change after discontinuation. CONCLUSION: For most stabilized, chronic patients with schizophrenia, tapering adjunctive medications did not change outcome. This naturalistic study further defines the limits of efficacy of some concomitant classes of medications in patients with chronic schizophrenia who are already receiving adequate antipsychotic therapy.

Adolescent↗
PubMedDate not supplied

[New perspectives in the diagnosis and therapy of narcolepsy].

Narcolepsy syndrome is a common, although often misdiagnosed, neurological disorder, whose clinical features are excessive daytime somnolence with sleep attacks, caplexy, sleep paralysis and hypnagogic hallucinations. The clinical manifestation have been interpreted as the expression of a sudden intrusion of dissociated REM phenomena in wakefulness. Sometimes the clinical manifestations may include only some of the symptoms: in particular, the cases in which the only symptom is excessive daytime somnolence may be difficult to diagnose. The etiopathogenesis of narcolepsy syndrome is still poorly understood. Recent experimental evidences suggest that a protein, called "orexin", which is supposed to play a role in the control mechanisms of both sleep and eating behaviour, is involved in its pathogenesis. The treatment of narcolepsy has been, up to now, exclusively symptomatic, and in some way empirical and unsatisfactory, especially regarding to daytime sleepiness. Recently, new pharmacological agents, acting on the serotoninergic and/or noradrenergic systems, allow a better control of the cataplectic attacks. The recent development of modafinil, a central nervous system stimulant, devoid of the serious side effects of amphetamines and other compounds, allows to hope in a better control of daytime somnolence and sleep attacks. The aim of the paper is to describe the recent advances in the diagnosis and treatment of narcolepsy.

Catalepsy↗
PubMed2001

Practice parameters for the treatment of narcolepsy: an update for 2000.

Successful treatment of narcolepsy requires an accurate diagnosis to exclude patients with other sleep disorders, which have different treatments, and to avoid unnecessary complications of drug treatment. Treatment objectives should be tailored to individual circumstances. Modafinil, amphetamine, methamphetamine, dextroamphetamine, methylphenidate, selegiline, pemoline, tricyclic antidepressants, and fluoxetine are effective treatments for narcolepsy, but the quality of published clinical evidence supporting them varies. Scheduled naps can be beneficial to combat sleepiness, but naps seldom suffice as primary therapy. Regular follow up of patients with narcolepsy is necessary to educate patients and their families, monitor for complications of therapy and emergent of other sleep disorders, and help the patient adapt to the disease.

Humans↗
PubMed2002

Gateways to Clinical Trials. June 2002.

Gateways to Clinical Trials is a guide to the most recent clinical trials in current literature and congresses. The data in the following tables has been retrieved from the Clinical Studies knowledge area of Prous Science Integrity, the drug discovery and development portal, http://integrity.prous.com. This issue focuses on the following selection of drugs: Abacavir sulfate, abarelix, abciximab, alicaforsen sodium, almotriptan, alteplase, amlodipine, amoxicillin trihydrate, amprenavir, argatroban monohydrate, aspirin, atorvastatin calcium, azathioprine; Baclofen, benidipine hydrochloride, benserazide, BMS-214662, bosentan, botulinum toxin type B; Candesartan cilexetil, carbamazepine, carbidopa, carboplatin, ceftriaxone sodium, celecoxib, cetirizine hydrochloride, clarithromycin, clavulanate potassium, clopidogrel hydrogensulfate, clozapine, CPI-1189, cyclophosphamide, cytarabine; Darbepoetin alfa, denileukin diftitox, dexamethasone, dipyridamole, droperidol, DW-166HC; Ebastine, efalizumab, efavirenz, eletriptan, enalapril maleate, enfuvirtide, enoxaparin sodium, enrasentan, entacapone, epoetin, eprosartan mesilate, etanercept, etoricoxib; Fenofibratefexofenadine hydrochloride, filgrastim, fludarabine phosphate, fluoxetine hydrochloride fluvoxamine maleate, frovatriptan, furosemide; Gabapentin, galantamine hydrobromide, gatifloxacin, gefitinib, ghrelin (human), glatiramer acetate; Haloperidol; Ibuprofen, ibuprofen, guaiacol ester, idarubicin hydrochloride, imipramine hydrochloride, imiquimod, interferon beta, interferon beta-1a, interferon beta-1b, interferon omega, irbesartan, itraconazole; Ketorolac, ketorolac tromethamine; Lamifiban, lamotrigine, lanoteplase, lansoprazole, leflunomide, leuprorelin acetate, levetiracetam, levocetirizine, levodopa, lisinopril, loratadine; Manidipine, methylprednisolone, metronidazole, mirtazapine, mizolastine, modafinil, morphine sulfate; Naproxen sodium, naratriptan hydrochloride, nifedipine, NSC-683864; Ofloxacin, olanzapine, omalizumab, omapatrilat, ondansetron hydrochloride, oxcarbazepine; Paclitaxel, parecoxib sodium, paroxetine hydrochloride, phenytoin sodium, pimecrolimus, pramipexole hydrochloride, pravastatin, prednisone, pregabalin; Quetiapine fumarate; Ranitidine hydrochloride, rasburicase, ritonavir, rivastigmine tartrate, rizatriptan benzoate, rofecoxib; Saquinavir mesilate, sertraline, sildenafil citrate, simvastatin, sumatriptan succinate; Tacrolimus, tiagabine hydrochloride, ticlopidine hydrochloride, tirofiban hydrochloride, tolvaptan, topiramate, tretinoin; Valproic acid, valsartan, venlafaxine hydrochloride, verapamil; Warfarin sodium; Ximelagatran; Zanamivir, ziconotide, zolmitriptan, zonisamide.

Drug Therapy↗
PubMedDate not supplied

Gateways to clinical trials.

Gateways to Clinical Trials is a guide to the most recent clinical trials in current literature and congresses. The data in the following tables has been retrieved from the Clinical Studies knowledge area of Prous Science Integrity, the drug discovery and development portal, http://integrity.prous.com. This issue focuses on the following selection of drugs: Aciclovir, alemtuzumab, alendronic acid sodium salt, alicaforsen sodium, alteplase, amifostine hydrate, antithymocyte globulin (equine), aspirin, atorvastatin calcium, azathioprine; Bacillus Calmette-Guérin, basiliximab, bicalutamide, bimatoprost, BMS-214662, brimonidine tartrate, buprenorphine hydrochloride; Cabergoline, carbamazepine, carboplatin, ciclosporine, cisplatin, cyclophosphamide; Daclizumab, desmopressin acetate, dihydroergotamine mesylate, dorzolamide hydrochloride, doxorubicin, dutasteride; Everolimus; Fluocinolone acetonide, frovatriptan, FTY-720, fulvestrant; Gabapentin, galantamine hydrobromide, ganciclovir, gemcitabine, glatiramer acetate; Hydrocodone bitartrate; Interferon beta, interferon beta-1a, interferon beta-1b, ipratropium bromide; Ketotifen; Lamivudine, latanoprost, levodopa, lidocaine hydrochloride, lonafarnib; Metformin hydrochloride, methylprednisolone, metoclopramide hydrochloride, mirtazapine, mitoxantrone hydrochloride, modafinil, muromonab-CD3, mycophenolate mofetil; NS-2330; Olopatadine hydrochloride, omalizumab, oxcarbazepine, oxycodone hydrochloride; Paclitaxel, paracetamol, piribedil, pramipexole hydrochloride, pravastatin sodium, prednisone; Quetiapine fumarate; Raloxifene hydrochloride, rituximab, rizatriptan sulfate, Ro-63-8695, ropinirole hydrochloride, rosiglitazone maleate; Simvastatin, siplizumab, sirolimus; Tacrolimus, tegaserod maleate, timolol maleate, tiotropium bromide, tipifarnib, tizanidine hydrochloride, tolterodine tartrate, topiramate, travoprost; Unoprostone isopropyl ester; Valganciclovir hydrochloride, visilizumab; Zidovudine.

Drug Therapy↗
PubMed2003

Brain circuits determine destiny in depression: a novel approach to the psychopharmacology of wakefulness, fatigue, and executive dysfunction in major depressive disorder.

Recent advances in neuropharmacology and neuroimaging are mapping the topography of symptoms in major depressive disorder (MDD). Different malfunctioning neuronal circuits apparently mediate different symptoms in MDD. Since all patients with MDD do not have the same symptoms, this implies that they may not all have the same malfunctioning circuits. Furthermore, since MDD patients treated with antidepressants commonly experience residual symptoms that prevent them from attaining complete remission, this implies that not all circuits are successfully targeted by treatment in such patients. A new neurobiologically informed treatment strategy for such patients calls for targeting residual symptoms by augmenting antidepressants with agents capable of boosting specific neurotransmitters in the hypothetically malfunctioning circuits. With this approach, the frequently residual symptoms of sleepiness, fatigue, and executive dysfunction can be targeted with bupropion, atomoxetine, modafinil, atypical antipsychotics, and stimulants.

Antidepressive Agents↗
PubMed2005

The management of fatigue in depressed patients.

Three quarters of patients who respond to treatment with the newer antidepressants still complain of fatigue. Fatigue is one of the most common and disturbing residual symptoms of depression. Increased serotonin activity in certain areas of the brain contributes to fatigue. It can be counteracted by dopaminergic agents which, interestingly, are enhanced by exercise. Specific steps that can be used to address residual fatigue include cognitive interventions based on those used to address somatoform disorders; graded aerobic exercise; dose reduction or discontinuation of fatigue-inducing antidepressants; and the prescription of such medications as dopaminergic antidepressants (bupropion), stimulants, thyroid preparations, and modafinil.

Antidepressive Agents↗
PubMedDate not supplied

[Noradrenaline and cerebral aging].

The central functions of norepinephrine (NE) are a recent discovery: regulation of alertness and of the wakefulness-sleep cycle, maintenance of attention, memory and learning, cerebral plasticity and neuro-protection. The anatomical, histological, biochemical and physiological properties of the central noradrenergic system: extreme capacity for ramification and arborization; slow conduction, non-myelinized axons with extrasynaptic varicosities producing and releasing NE; frequency of co-transmission phenomena, and; neuromodulation with fiber effect responsible for improvement in the signal over background noise ratio and selection of significant stimuli form a true interface between the outside world and the central nervous system, notably for the neocortex in the context of the cognitive treatment of information. This central noradrenergic system is involved in the neurophysiology and the clinical features of cerebral aging (ideation-motor and cognitive function slowing down, loss of behavioral adjustment), neuro-degenerative disorders (SDAT, Parkinson's disease), certain aspects of depression and less obvious conditions (head injuries, sequelae of cerebrovascular accidents, sub-cortical dementia). The recent development of medications improving alertness (adrafinil, modafinil) with a pure central action and specifically noradrenergic, may contribute to an improvement in these multifactorial disorders.

Adaptation, Physiological↗
PubMed1995

Novel French antidepressants not available in the United States.

There is little awareness in the United States and other English-speaking countries of a number of novel antidepressant drugs that have recently been developed and marketed in France. This review focuses on tianeptine, amineptine, minaprine, medifoxamine, and modafinil--examining both their pharmacological actions and their clinical efficacies. Their potential for further research or marketing in the United States is discussed.

Animals↗
PubMed1996

[Narcolepsy].

Narcolepsy is a rather unknown but not exceptional condition. Its prevalence, 2 to 6/10000, is ranging among this of multiple sclerosis. Narcolepsy is remarkable for clinical, polygraphic and immunogenetic features which make it a kind of model of disorders of alertness. It was first described in 1877. It has recently benefited from consistent pathophysiological progresses, which have been facilitated by the discovery of a natural canine model. The two main symptoms are irresistible and refreshing episodes of sleep and cataplexy a loss of muscle tone emotionally triggered. Polygraphically the sleep onset REM period is the major feature. Immunogenetically the condition is remarkable for an almost 100% association with HLA DR2-DQ1. Narcolepsy is a debilitating, chronic condition. Its treatment is threefold including stimulants against excessive daytime sleepiness and irresistible episodes of sleep, modafinil a new compound with awakening properties has just been introduced, antidepressants against cataplexy and associated symptoms and hypnotics against disrupted sleep.

Adolescent↗
PubMed1998

[Hypersomnia. Narcolepsy-cataplexy (Gélineau syndrome)].

SIGNS AND SYMPTOMS: Narcolepsy is the most prevalent of the primary disorders of vigilance. It is relatively easy to identify in presence of clearcut cataplexy and other REM-sleep related symptoms, i.e. sleep paralysis and hypnagogic hallucinations. Otherwise, one must rely on demonstration of sleep onsets in REM during night and daytime polygraphy, and on the very strong association with the HLA gene DQB1*0602. TREATMENT: With the advent of modafinil, treatment of narcolepsy has been substantially modified. New strategies are an improvement over amphetamines both in terms of side effects and long-term outcome. Most cataplectic attacks can be controlled by tricyclics or other antidepressants. PATHOGENESIS: Major advances in pathophysiology and etiology have been obtained through an animal model of the disease, canine narcolepsy. Pharmacological studies point to the importance of alpha-1 adrenergic mechanisms in cataplexy, while dopaminergic systems seem more involved in generating sleepiness. As concerns genetics of this autosomal recessive disease, there is an equivalent of the human HLA association in the form of an immunoglobulin gene (mu-switch) linkage. Narcolepsy research is now looking for other genes, for which familial cases may give clues.

Animals↗
PubMed2001

Fatigue in multiple sclerosis.

Fatigue is among the most common, yet least understood, symptoms of multiple sclerosis (MS) [1.]. It can profoundly disrupt the occupational and social functioning of patients, and is recognized as a criterion for MS disability by the Social Security Administration. Most approaches to fatigue assessment can be classified as either self-report scales or performance-based measures of motor or cognitive output. During the clinical management of fatigue, it is important to consider the role of other MS symptoms on fatigue, as well as that of non-MS-related medical conditions. Management of fatigue in MS often entails both pharmacologic and behavioral components. This article reviews recent developments in the assessment, treatment, and pathogenesis of MS fatigue.

Amantadine↗
PubMed2006

Effects of armodafinil in the treatment of residual excessive sleepiness associated with obstructive sleep apnea/hypopnea syndrome: a 12-week, multicenter, double-blind, randomized, placebo-controlled study in nCPAP-adherent adults.

BACKGROUND: Some patients with obstructive sleep apnea/hypopnea syndrome (OSA/HS) experience excessive sleepiness (ES) that might not resolve with nasal continuous positive airway pressure (nCPAP) treatment. OBJECTIVE: The aim of the present study was to assess the efficacy and tolerability of armodafinil 150 or 250 mg QD when used as adjunctive treatment for residual ES associated with OSA/HS in patients who are adherent to nCPAP therapy. METHODS: This 12-week, multicenter, double-blind, randomized, placebo-controlled study was conducted at 37 centers in the United States and Canada. Male and female patients aged 18 to 65 years with residual ES associated with OSA/HS were enrolled. Patients were randomly assigned to receive armodafinil 150 or 250 mg or placebo PO QD for 12 weeks. Assessments were conducted at baseline and study weeks 4, 8, and 12 and included the Maintenance of Wakefulness Test (MWT) to determine wakefulness, the Clinical Global Impression of Change (CGI-C) to determine improvement in clinical condition, the Epworth Sleepiness Scale (ESS) to determine patient-estimated wakefulness, the Brief Fatigue Inventory (BFI) to determine global fatigue, and the Cognitive Drug Research computerized assessment battery. To distinguish between earlier and later effects, sleep latencies, assessed using the MWT, were averaged across the first 4 (9 and 11 AM, and 1 and 3 PM) and last 3 (3, 5, and 7 PM) tests. Tolerability assessments included monitoring of adverse events (AEs), clinical laboratory tests, vital sign measurements, and electrocardiography. RESULTS: A total of 395 patients were enrolled in the study (armodafinil 150 mg/d, 133; armodafinil 250 mg/d, 131; placebo, 131); 392 received >or=1 dose of study drug (armodafinil 150 mg/d, 131; armodafinil 250 mg/d, 131; placebo, 130). The armodafinil and placebo groups were well matched with regard to age (mean [SD], 49.2 [8.9] vs 50.1 [9.4] years), sex (71 vs 69% men), race (84% vs 87% white), and body weight (mean [SD], 110.3 [24.9] vs 111.9 [24.0] kg). At the final visit, the mean (SD) change from baseline in MWT sleep latency across the morning and afternoon was significantly greater in the armodafinil combined group compared with the placebo group (+1.9 [7.3] vs 1.7 [8.6] minutes; P < 0.001). Also at the final visit, the proportions of patients who showed at least minimal improvement on the CGI-C, and the mean (SD) changes from baseline in ESS and BFI scores, were significantly greater in the armodafinil group compared with those in the placebo group (72% vs 37%, -5.5 [5.0] vs -3.3 [4.7], and -1.2 [2.2] vs -0.6 [2.0], respectively; P < 0.001, P < 0.001, and P < 0.01, respectively). No significant effects on nighttime sleep, as assessed using polysomnography, were found with armodafinil. AEs reported in the armodafinil combined and placebo groups were headache, nausea, insomnia, anxiety, and dizziness. Serious AEs (ulcerative colitis, migraine, worsening of Axis II and mood disorder, and duodenal ulcer) were reported in 4 (1.5%) patients receiving armodafinil and were considered by the investigator not or unlikely to be drug related. CONCLUSIONS: In this selected population of patients with OSA/HS and residual ES despite effective treatment with nCPAP, armodafinil QD used as an adjunct to nCPAP treatment was associated with improved wakefulness and overall clinical condition. Clinical benefit was shown at the first assessment and maintained for the 12-week duration of the study. Armodafinil was also associated with significantly reduced interference of ES with daily activities and global fatigue. Armodafinil was well tolerated, with no adverse effect on nighttime sleep or nCPAP use.

Benzhydryl Compounds↗