Reduction in excess daytime sleepiness by modafinil in patients with myotonic dystrophy. Modafinil for the treatment of hypersomnia associated with myotonic muscular dystrophy in adults: a multicenter, prospective, randomized, double-blind, placebo-controlled, 4-week trial. Modafinil reduces excessive somnolence and enhances mood in patients with myotonic dystrophy. Does modafinil enhance activity of patients with myotonic dystrophy?: a double-blind placebo-controlled crossover study. Adjunct modafinil for the short-term treatment of fatigue and sleepiness in patients with major depressive disorder: a preliminary double-blind, placebo-controlled study. A multicenter, placebo-controlled study of modafinil augmentation in partial responders to selective serotonin reuptake inhibitors with persistent fatigue and sleepiness. Cognitive performance during sustained wakefulness: A low dose of caffeine is equally effective as modafinil in alleviating the nocturnal decline. Selegiline in the treatment of hypersomnolence in myotonic dystrophy: a pilot study. Modafinil effects in multiple sclerosis patients with fatigue.
Patients with myotonic dystrophy frequently suffer from excess daytime sleepiness, which can be a significant cause of disability. Previous studies have indicated that this excess daytime sleepiness is only occasionally due to obstructive sleep apnoea and may be principally of central nervous system origin. Modafinil has been successfully used to treat narcolepsy, a central disorder causing excess daytime sleepiness. We have investigated the use of this drug in myotonic dystrophy patients with excess daytime sleepiness. Patients were recruited from a clinic population on the basis of screening with the Epworth Sleepiness Scale. Patients scoring 10 and above were invited to participate in a randomized double-blind crossover trial of modafinil versus placebo, with four weeks in each arm of the study separated by a 2-week washout period. Patients were assessed by polysomnography at baseline. The primary outcome measures were change in both the Epworth Sleepiness Scale and a modified Maintenance of Wakefulness Test, which were measured at the start of each arm of the trial and in week 3 of each intervention period. In agreement with previous smaller studies, sleepiness is not correlated with CTG expansion size. Treatment with modafinil showed a non-significant reduction in median Epworth Sleepiness Scale. However, the median Maintenance of Wakefulness Test score was prolonged by treatment (31.7-40 min, P=0.006). There were no significant adverse cardiac effects of the drug in this group of patients (resting 12 lead and 24 h ECG monitoring). Selected patients with myotonic dystrophy and excess daytime sleepiness may benefit from modafinil. In this patient group the Epworth Sleepiness Scale may not be the most reliable measure of sleepiness. Despite the potential for cardiac disease in these patients, the drug was well tolerated with no adverse effects. Myotonic muscular dystrophy type 1 (MMD1) is the most common form of adult MD, with a mean prevalence of 1 in 8000. Excessive daytime sleepiness (ie, hypersomnia) is a common complication of MMD1.
                The aim of this study was to evaluate the efficacy and tolerability of modafinil for the treatment of hypersomnia in adults with MMD1.
                This multicenter, prospective, randomized, double-blind, placebo-controlled study consisted of a prerandomization period (90 to 2 days before randomization) and a 4-week randomization period in which patients were assigned to receive either active treatment (modafinil 300 mg/d) or placebo. The study was conducted at 3 clinics in France between February 2000 and June 2002. Adult patients aged > or =18 years, with genetically proven MMD1, an Epworth Sleepiness Scale (ESS) score >10, and a mean latency to sleep onset < or =8 minutes measured by the Multiple Sleep Latency Test (MSLT) were eligible. The primary efficacy end point was the Maintenance of Wakefulness Test (MWT) score at 4 weeks. Secondary end points included the mean MSLT score and scores from the ESS, physician's assessment of the therapeutic effect and the patient's global self-assessment via visual analog scale, the 17-item Hamilton Depression Rating Scale, and the Short Form Health Survey (SF-36) quality-of-life assessment.
                A total of 28 patients (15 men, 13 women; mean [SD] age, 40 [12.7] years [range, 18-69 years]; 100% white; modafinil group, 13; placebo group, 15) completed the study without protocol violations. Of the 28 patients with MMD1 included in the analysis, 21 had adult-onset MMD1. At 4 weeks, the mean MWT score was 16.4 (3.3) minutes in the modafinil group and 15.8 (3.8) minutes in the placebo group (P = NS). At the end of the randomization period, there were no significant between-group differences in any secondary outcome. A total of 8 patients (4 in each group) reported > or =1 adverse event, including digestive, neurologic, and skin symptoms. Weight loss was reported in 1 patient (2 kg).
                In this small study conducted in an adult population with MMD1 and a high prevalence of hyper-somnia, modafinil had no significant effects on daytime somnolence measured using objective MWTs. To evaluate the potential of modafinil in reducing excessive daytime somnolence (EDS) and enhancing indexes of quality of life and mood in patients with myotonic dystrophy (DM).
                Forty patients with DM were randomized to receive modafinil and placebo for 14 days each, using a double-blind, cross-over design. Before and after each trial, subjects completed handgrip strength testing, spirometry, and quality-of-life measures (RAND). On days 7 and 14, each subject completed the Epworth Sleepiness Scale (ESS), the Stanford Sleepiness Scale (SSS), and the Profile of Mood States (POMS).
                ESS scores were lower while taking modafinil (mean 248 mm; 95% confidence limit 220 to 276 mm) as compared with placebo (309 mm; 281 to 336 mm) (p < 0.001). Mean SSS scores were also lower during the modafinil trial (3.05; 2.77 to 3.33) than during the placebo trial (3.45; 3.18 to 3.71) (p < 0.05). The POMS indicated that modafinil decreased fatigue-inertia (p < 0.001) and increased vigor-activity and tension-anxiety (p < 0.001) indexes. The total mood disturbance score was also decreased during the modafinil trial as compared with placebo (p < 0.05). The RAND quality-of-life measures of energy (p < 0.001) and health change (p < 0.05) were both significantly enhanced during the modafinil treatment phase. No changes in maximal grip strength or forced expired volume in 1 second were detected over the course of the study. Headache was the most frequently reported adverse event. Four patients withdrew from the study, three because of side effects (two during modafinil ingestion and one during placebo ingestion).
                Modafinil reduces somnolence and improves mood in patients with DM. We performed a double-blind placebo-controlled crossover study in 13 patients with myotonic dystrophy to address the question whether modafinil, known to improve hypersomnolence in myotonic dystrophy, may improve levels of activity as well. We used the Epworth Sleepiness Scale as a measure of hypersomnolence and a structured interview of the patient and the partner or housemate as a measure of activity. We additionally used a restricted form of the RAND-36 to relate a possible improvement of activity to perceived general health. We confirmed earlier positive findings of modafinil regarding reduced somnolence (p=0.015), but no significant effects were seen regarding activity levels (p=0.2 for patients' self-reports and 0.5 for partners' reports). Fatigue and sleepiness are primary symptoms of depression that may not resolve with antidepressant therapy. Modafinil is a novel agent that has been shown to improve wakefulness and lessen fatigue in a variety of conditions. In this study, we examined the utility of modafinil as an adjunct therapy to treat fatigue and sleepiness in patients with major depression who are partial responders to antidepressants.
                Patients with partial response to anti-depressant therapy given for at least a 6-week period for a current major depressive episode (DSM-IV criteria) were enrolled in this 6-week, randomized, double-blind, placebo-controlled, parallel-group, multicenter study. Patients received once-daily doses (100-400 mg) of modafinil or matching placebo as adjunct treatment to ongoing antidepressant therapy. The effects of modafinil were evaluated using the Hamilton Rating Scale for Depression (HAM-D), the Fatigue Severity Scale (FSS), the Epworth Sleepiness Scale (ESS), the Clinical Global Impression of Change (CGI-C), and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). Adverse events were monitored throughout the study.
                One hundred thirty-six patients were randomized to treatment, with 118 patients (87%) completing the study. Most patients (82%) were fatigued, and one half of patients (51%) were sleepy. Modafinil rapidly improved fatigue and daytime wakefulness, with significantly greater mean improvements from baseline than placebo in fatigue (FSS) scores at week 2 (p < .05) and sleepiness (ESS) scores at week 1 (p < .01); the differences between modafinil and placebo at week 6 were not statistically significant. Assessment of the augmentation effects of modafinil (HAM-D, CGI-C, and SF-36) did not significantly distinguish modafinil from placebo. Modafinil was well tolerated in combination with a variety of antidepressants.
                Modafinil may be a useful adjunct therapy for the short-term management of residual fatigue and sleepiness in patients who are partial responders to antidepressant therapy. Up to one half of depressed patients have partial or no response to antidepressant monotherapy. This multicenter, placebo-controlled study evaluated the efficacy of modafinil augmentation in major depressive disorder (MDD) patients with fatigue and excessive sleepiness despite selective serotonin reuptake inhibitor (SSRI) monotherapy.
                Patients (18-65 years) with a DSM-IV diagnosis of MDD and partial response to SSRI monotherapy (> or = 8 weeks) at a stable dose for > or = 4 weeks were eligible. Patients had screening/baseline 31-item Hamilton Rating Scale for Depression (HAM-D) scores of 14 to 26, Epworth Sleepiness Scale (ESS) scores > or = 10, and Fatigue Severity Scale (FSS) scores > or = 4. Patients were randomly assigned to augmentation therapy with modafinil 200 mg/day or placebo for 8 weeks. Assessments included the ESS, Clinical Global Impressions-Improvement scale (CGI-I), 31- and 17-item HAM-D, FSS, Brief Fatigue Inventory (BFI), and Montgomery-Asberg Depression Rating Scale (MADRS).
                Of 311 enrolled patients who received > or = 1 dose of study drug, 158 were randomly assigned to modafinil (70% women) and 153 to placebo (72% women); 85% of each treatment group completed the study. At final visit, modafinil significantly improved patients' overall clinical condition compared with placebo on the basis of CGI-I scores (p = .02), and there were trends toward greater mean reductions in ESS, 31- and 17-item HAM-D, and MADRS scores versus placebo. Modafinil significantly reduced BFI scores for worst fatigue at final visit (p < .05 vs. placebo). There were no significant differences between modafinil and placebo at final visit in FSS or BFI total scores. Adverse events significantly more common during modafinil compared with placebo treatment were nausea (9% vs. 2%; p = .01) and feeling jittery (4% vs. 1%; p = .03).
                These findings suggest that modafinil is a well-tolerated and potentially effective augmenting agent for SSRI partial responders with fatigue and sleepiness. Cognitive performance at night exhibits a substantial drop, typically before dawn. One of the means of dealing with this phenomenon, as well as with the accompanying sleepiness during sustained wakefulness, is the administration of stimulants. The most widely used and well-documented stimulants are caffeine, amphetamines, and modafinil. Of these, amphetamines are the least recommended, as they may severely affect behavior. Caffeine and modafinil seem to produce relatively milder side effects and usually only at high doses. Previous comparison studies have revealed equal efficacy of both the stimulants in maintaining alertness and performance during sustained wakefulness. However, these studies used relatively high, and thus not completely safe, doses of these drugs (600 mg caffeine and 400 mg modafinil). Therefore, the aim of the present study was to assess the efficacy of a low and medically safe dose of caffeine (200 mg) and modafinil (200 mg) in maintaining cognitive performance during sustained wakefulness. A flight simulation task was chosen for the assessment of the stimulants in a counter-balanced, within-subject design under four different conditions: baseline (no drugs), placebo, caffeine (200 mg), and modafinil (200 mg). The equal effectiveness of both drugs in abolishing the nocturnal drop in cognitive performance, as well as of oral temperature and blood pressure, supported the use of low doses of caffeine and modafinil for the maintenance of alertness in healthy subjects during sustained wakefulness. Patients with myotonic dystrophy frequently complain of hypersomnolence, a symptom which seriously restricts their social life. The pathogenesis of this symptom is a matter of debate: it has been attributed to both alveolar hypoventilation and pathological changes in the brainstem. As selegiline has been shown to reduce the number of sleep attacks in nacrolepsy, we tested whether hypersomnolence in myotonic dystrophy would respond to the same treatment. Ten patients with myotonic dystrophy received selegiline/placebo (20 mg daily) in a double-blind crossover trial. We monitored daytime sleepiness by means of a multiple sleep latency test. Treatment appeared to be well tolerated but did not alter hypersomnolence in myotonic dystrophy. Further studies to assess the effect of higher doses of selegiline are warranted. To investigate the effects of Modafinil on focused attention, motor function and motor excitability in patients with multiple sclerosis (MS) and fatigue.
                21 MS patients with fatigue were enrolled in this double-blind placebo-controlled study. Modafinil (MOD) or placebo (PL) was administered for 8 weeks. The d2 alertness test, the Nine Hole Peg Test (9HPT) and several transcranial magnetic stimulation (TMS) techniques were applied prior to and after the first drug ingestion and well as after 8 weeks of drug intake.
                Prior to the first drug intake, the two groups were comparable. After the first drug ingestion, fatigue as measured by the Fatigue Severity Scale (FSS), performance of the d2 test and the 9HPT improved significantly in the MOD group and remained better than in the PL group after 8 weeks of treatment. Patients in the MOD group made fewer mistakes in the D2 test without being slower. They completed the 9HPT faster. Motor evoked potential amplitudes produced by paired pulse TMS were larger in the MOD group than the PL group. Motor thresholds and silent period durations remained unchanged.
                Compared to PL, MOD improved fatigue, focused attention and dexterity and enhanced motor cortex excitability in this group of patients. MOD may be helpful in MS patients with fatigue to improve cognitive and motor abilities.
There is low quality evidence from two small trials that psychostimulants do not significantly improve the maintenance of wakefulness test in myotonic dystrophy. There is low quality evidence from four studies that modafinil significantly improves the Epworth Sleepiness Scale. More randomized trials are needed to evaluate the efficacy and safety of psychostimulants.