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Effect of discontinuation of lemborexant following long-term treatment of insomnia disorder: Secondary analysis of a randomized clinical trial.

ABSTRACT: Discontinuing long-term pharmacotherapy for insomnia can result in rebound insomnia or withdrawal symptoms and suboptimal treatment. Post hoc analyses evaluated rebound insomnia and withdrawal symptoms among the subset of subjects from a phase III, 12-month, global, multicenter, randomized, double-blind, parallel-group study who completed 12 or 6 months of active treatment and follow-up period. Study E2006-G000-303 (Study 303) included adults (N = 655) with subjective sleep-onset latency ≥30 min and/or subjective wake-after-sleep onset ≥60 min at least three times weekly during the 4 weeks before enrollment. Subjects were randomized 1:1:1 to lemborexant 5 mg (LEM5) or 10 mg (LEM10) or placebo for 6 months. Thereafter, for an additional 6 months, LEM5- and LEM10-treated subjects continued lemborexant and the placebo group was rerandomized 1:1 to LEM5 or LEM10. Month 12 was followed by abrupt discontinuation and a 2-week end-of-study follow-up. Using daily electronic sleep diaries, patients reported (subjective) sleep end points (sleep-onset latency, wake-after-sleep onset, sleep efficiency, and total sleep time). Withdrawal symptoms were assessed using the Tyrer Benzodiazepine Withdrawal Symptoms Questionnaire (T-BWSQ). Sleep outcome improvements with lemborexant at month 12 were generally maintained throughout the 2-week off-treatment period wherein <20% of subjects experienced significant worsening of insomnia symptoms versus screening. There was no evidence of withdrawal symptoms by T-BWSQ following lemborexant discontinuation. This analysis demonstrates rebound insomnia is unlikely to occur with lemborexant, and its effectiveness is maintained after abrupt discontinuation without placebo replacement following 6-12 months of treatment.

SUBMITTER: Takaesu Y

PROVIDER: S-EPMC10087073 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Effect of discontinuation of lemborexant following long-term treatment of insomnia disorder: Secondary analysis of a randomized clinical trial.

Takaesu Yoshikazu Y Suzuki Masahiro M Moline Margaret M Pinner Kate K Inabe Kanako K Nishi Yurie Y Kuriyama Kenichi K

Clinical and translational science 20230106 4

Discontinuing long-term pharmacotherapy for insomnia can result in rebound insomnia or withdrawal symptoms and suboptimal treatment. Post hoc analyses evaluated rebound insomnia and withdrawal symptoms among the subset of subjects from a phase III, 12-month, global, multicenter, randomized, double-blind, parallel-group study who completed 12 or 6 months of active treatment and follow-up period. Study E2006-G000-303 (Study 303) included adults (N = 655) with subjective sleep-onset latency ≥30 min ...[more]

PMID: 36564964

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Project description:Stopping denosumab after 8 years of continued treatment was associated with bone loss during a 1-year observation study in patients who were not prescribed osteoporosis treatment. Bone loss was attenuated in patients who began another osteoporosis therapy. Treatment to prevent bone loss upon stopping denosumab should be considered.IntroductionThis study aimed to understand osteoporosis management strategies during a 1-year observational follow-up after up to 8 years of denosumab treatment in a phase 2 study.MethodsDuring the observational year, patients received osteoporosis management at the discretion of their physician and returned to the clinic for BMD assessment and completion of an osteoporosis management questionnaire. Incidence of serious adverse events and fractures was collected. Analyses were descriptive.ResultsOf 138 eligible patients, 82 enrolled in and completed the observation study. Most (65 [79%]) did not receive prescription osteoporosis medication, with "my doctor felt I no longer needed a medication" being the most common reason (23 [35%]). Of the 17 patients who took osteoporosis medications, 8 discontinued therapy during the observation study. In patients treated with denosumab for 8 years (N = 52), BMD decreased during the 1-year observation study (6.7% [lumbar spine], 6.6% [total hip]). Those who took osteoporosis medication during the observation study showed a smaller decline in BMD than those who did not. No new safety concerns were identified. Eight patients (9.8%), all of whom had at least one predisposing risk factor, experienced 17 fractures. This included seven patients who experienced one or more vertebral fractures.ConclusionsConsistent with denosumab's mechanism of action, treatment cessation led to reversal of the drug's effect on BMD and perhaps fracture risk. For patients who took osteoporosis therapy, bone loss was attenuated. For patients at high fracture risk, switching to another osteoporosis therapy if denosumab is discontinued seems appropriate.

Project description:BackgroundPharmacologic treatments are available to treat insomnia, a common and burdensome sleep disorder, but may be contraindicated in older adults who are prone to side effects from sleep-promoting drugs. These analyses of sleep diary data from Study E2006-G000-303 (Study 303) investigated the benefits of lemborexant 5 mg (LEM5) and 10 mg (LEM10) in the subgroup age ≥ 65 years with insomnia.MethodStudy 303, a 12-month, double-blind study of LEM5 and LEM10 in adults (age ≥ 18 years) with insomnia disorder (sleep onset and/or maintenance difficulties) assessed subject-reported (subjective) sleep-onset latency (sSOL), sleep efficiency (sSE), wake after sleep onset (sWASO), and total sleep time (sTST). Morning sleepiness/alertness, insomnia severity (Insomnia Severity Index [ISI]), fatigue (Fatigue Severity Scale [FSS]), perceptions of sleep-related medication effects (Patient Global Impression-Insomnia [PGI-I] questionnaire), and safety were also evaluated.ResultsIn this subgroup of older adults (≥ 65 years; n = 262), there were significantly larger changes from baseline for sSOL, sSE, sTST, and sWASO with LEM5 and LEM10 versus placebo through month 6 (except sWASO month 1), indicating improvement; these improvements were sustained through month 12. Subject-reported increases in morning alertness were significantly greater with one or both LEM doses versus placebo through month 6 and sustained through month 12. There were significantly larger ISI total and daytime functioning score decreases (improvement) from baseline with LEM versus placebo at months 1, 3, and 6 (total score: both doses; daytime functioning: LEM5 month 1 and both doses months 3 and 6) and decreases from baseline FSS at months 1 and 3 (LEM5) and month 6 (both doses), sustained to month 12. Compared with placebo, more subjects reported that LEM (both doses) positively impacted ability to sleep, time to fall asleep, and TST through month 6, sustained to month 12, with no rebound after drug withdrawal. LEM was well tolerated to month 12; mild somnolence was the most common treatment-emergent adverse event.ConclusionsImprovements in subject-reported efficacy in LEM-treated adults age ≥ 65 years with insomnia were observed as early as the first week of treatment and sustained through end of month 12. LEM was well tolerated.Clinical trials registrationClinicalTrials.gov identifier NCT02952820: E2006-G000-303; Study 303; SUNRISE-2 (First posted: October 2016); EudraCT 2015-001463-39 (First posted: November 2016).

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Project description:Background and objectiveDaridorexant is a dual orexin receptor antagonist for the treatment of insomnia. In two phase III, 12-week studies in patients with insomnia disorder, daridorexant improved sleep and daytime functioning while maintaining a favorable safety profile. The objective of this 40-week extension study was to assess the long-term safety and tolerability of daridorexant.MethodsAdults with insomnia disorder who completed the 12-week studies were invited to enroll in this double-blind extension study. Patients originally randomised to daridorexant (10 mg/25 mg/50 mg) remained on their respective treatments; patients randomised to placebo were re-randomised to daridorexant 25 mg or placebo. The 40-week treatment period was followed by a 7-day placebo run-out. The primary objective was to assess safety/tolerability. Exploratory objectives were to evaluate the efficacy of daridorexant on sleep (self-reported total sleep time) and daytime functioning (Insomnia Daytime Symptoms and Impacts Questionnaire).ResultsIn total, 804 patients were enrolled in the study, of whom 801 received at least one dose of the study treatment and 550 patients (68.4%) completed the study. Overall incidence of treatment-emergent adverse events was similar across groups (35-40%). Daridorexant did not induce next-morning sleepiness and no withdrawal-related symptoms or rebound were observed after treatment discontinuation. Improvements in sleep and daytime functioning were maintained through to the end of the study and were most pronounced with daridorexant 50 mg. Daridorexant 50 mg, compared with placebo, increased self-reported total sleep time by a least-squares mean of 20.4 (95% confidence interval [CI] 4.2, 36.5), 15.8 (95% CI - 0.8, 32.5) and 17.8 (95% CI - 0.4, 35.9) minutes and decreased (i.e., improved) Insomnia Daytime Symptoms and Impacts Questionnaire total scores by a least-squares mean of - 9.3 (95% CI - 15.1, - 3.6), - 9.5 (95% CI - 15.4, - 3.5) and - 9.1 (95% CI - 15.6, - 2.7), at weeks 12, 24 and 36 of the extension study, respectively.ConclusionsTreatment with daridorexant, for up to 12 months, was generally safe and well tolerated. Exploratory efficacy analyses suggest that the sustained improvements in sleep and daytime functioning with daridorexant 50 mg support its use for long-term treatment of insomnia disorder, without concerns of new safety signals.Clinical trial registrationClinicalTrials.gov (NCT03679884) [first posted: 21 September, 2018], https://clinicaltrials.gov/ct2/show/NCT03679884 .

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Effect of discontinuation of lemborexant following long-term treatment of insomnia disorder: Secondary analysis of a randomized clinical trial.

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Effect of discontinuation of lemborexant following long-term treatment of insomnia disorder: Secondary analysis of a randomized clinical trial.

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