scholarly journals Relationship of Brain Glutamate Response to D-Cycloserine and Lurasidone to Antidepressant Response in Bipolar Depression: A Pilot Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhengchao Dong ◽  
Michael F. Grunebaum ◽  
Martin J. Lan ◽  
Vashti Wagner ◽  
Tse-Hwei Choo ◽  
...  

N-methyl-D-aspartate glutamate-receptor (NMDAR) antagonists such as ketamine have demonstrated efficacy in both major depressive disorder (MDD) and bipolar disorder depression (BP-D). We have previously reported that reduction in Glx (glutamate + glutamine) in the ventromedial prefrontal cortex/anterior cingulate cortex (vmPFC/ACC), measured by proton magnetic resonance spectroscopy (1H MRS) at 3T during a ketamine infusion, mediates the relationship of ketamine dose and blood level to improvement in depression. In the present study, we assessed the impact of D-cycloserine (DCS), an oral NMDAR antagonist combined with lurasidone in BP-D on both glutamate and Glx. Subjects with DSM-V BP-D-I/II and a Montgomery-Asberg Depression Rating Scale (MADRS) score>17, underwent up to three 1H MRS scans. During Scan 1, subjects were randomized to receive double-blind lurasidone 66 mg or placebo. During Scan 2, all subjects received single-blind DCS 950 mg + lurasidone 66 mg, followed by 4 weeks of open label phase of DCS+lurasidone and an optional Scan 3. Five subjects received lurasidone alone and three subjects received placebo for Scan 1. Six subjects received DCS+lurasidone during Scan 2. There was no significant baseline or between treatment-group differences in acute depression improvement or glutamate response. In Scan 2, after a dose of DCS+lurasidone, peak change in glutamate correlated negatively with improvement from baseline MADRS (r = −0.83, p = 0.04). There were no unexpected adverse events. These preliminary pilot results require replication but provide further support for a link between antidepressant effect and a decrease in glutamate by the NMDAR antagonist class of antidepressants.

2019 ◽  
Vol 33 (4) ◽  
pp. 502-510 ◽  
Author(s):  
Márcia Kauer-Sant’Anna ◽  
Benicio N Frey ◽  
Adam Fijtman ◽  
Ana C Loredo-Souza ◽  
Aroldo A Dargél ◽  
...  

Objective: The purpose of this study was to assess the efficacy and tolerability of tianeptine as an adjunctive maintenance treatment for bipolar depression. Methods: This is a multicenter double-blind randomized placebo-controlled maintenance trial of adjunctive tianeptine 37.5 mg/day. Participants ( n=161) had a Montgomery-Asberg Depression Rating Scale ⩾12 at entry. After eight weeks of open-label tianeptine treatment, those who responded to tianeptine ( n=69) were randomized to adjunctive tianeptine ( n=36) or placebo ( n=33) in addition to usual treatment. Kaplan-Meier estimates and the Mantel-Cox log-rank test were used to evaluate differences in time to intervention for a mood episode between the tianeptine and placebo groups. We also assessed overall functioning, biological rhythms, quality of life, rates of manic switch and serum brain-derived neurotrophic factor levels. Results: There were no differences between adjunctive tianeptine or placebo regarding time to intervention or depression scores in the 24-week double-blind controlled phase. Patients in the tianeptine group showed better performance in the letter-number sequencing subtest from the Wechsler Adult Intelligence Scale at the endpoint ( p=0.014). Tianeptine was well tolerated and not associated with higher risk for manic switch compared to placebo. Conclusion: Tianeptine was not more effective than placebo in the maintenance treatment of bipolar depression. There is preliminary evidence suggesting a pro-cognitive effect of tianeptine in working memory compared to placebo.


CNS Spectrums ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 191-192
Author(s):  
Ann C. Childress ◽  
Antonio Pardo ◽  
Thomas R. King ◽  
Judith C. Kando ◽  
Barry K. Herman

ObjectiveTo determine whether amphetamine extended-release oralsuspension (AMPH EROS) has an onset of effect at 30minutes postdose inchildren with ADHD.MethodsThis randomized, double-blind, 2-treatment, 2-sequence, placebo-controlled crossover pilot study enrolled subjects aged 6 to 12 years withattention-deficit/hyperactivity disorder (ADHD) and ADHD-Rating Scale-5 scores of ≥90th percentile for sex and age. A dose of 5 to 20mg/day of AMPH EROS was determined during a 1-week open-label phase based on medication history, symptom control, and tolerability. Subjects completed a practice laboratory classroom then received one day of double-blind active drug or placebo each in random sequence during 2 double-blind laboratory classroom days. Subjects completed the first double-blind laboratory classroom session, returned to open label drug for 5days then crossed over on day 6 during a second double-blind laboratory classroom session. DB dose was fixed at AMPH EROS 15, 17.5, or 20mg . The primary endpoint was change from predose in the Swanson, Kotkin, Agler, M-Flynn, Pelham rating scale-combined score (SKAMP-C) at 30minutes postdose on two DB days. The key secondary endpoint was change from predose in the SKAMP-C score at 3hours postdose for AMPH EROS compared with placebo. Safety assessments included vital signs and adverse events.ResultsEighteen subjects were enrolled in the study (14 males and 4 females) with a mean age of 9 years. At both 30minutes and 3hours postdose, changes from baseline in SKAMP-C for AMPH EROS vs. placebo were statistically significant (p<0.01 and p=0.0002, respectively) with corresponding effect sizes of 0.96 and 1.57. Adverse events (>10%) during the open-label phase included upper respiratory tract infection, fatigue, upper abdominal pain, headache, decreased appetite, and affect lability.ConclusionsAMPH EROS was effective in reducing ADHD symptoms at 30minutes postdose. AEs were mild or moderate and consistent with those of other extended-release amphetamines.Funding Acknowledgements: Support was provided by Tris Pharma, Inc.


2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Maximilian Pilhatsch ◽  
Thomas J Stamm ◽  
Petra Stahl ◽  
Ute Lewitzka ◽  
Anne Berghöfer ◽  
...  

Abstract Background Symptoms of anxiety co-occur in a variety of disorders including in depressive episodes of bipolar disorder and in patients with thyrotoxicosis. Treatment of refractory bipolar disorder with supraphysiologic doses of levothyroxine (L-T4) has been shown to improve the phenotypic expression of the disorder and is associated with an increase of circulating thyroid hormones. However, it might be associated with somatic and mental adverse effects. Here we report the investigation of the influence of treatment with supraphysiologic doses of L-T4 on symptoms of anxiety in patients with refractory bipolar depression. Methods Post-hoc analysis from a 6-week, multi-center, randomized, double-blind, placebo-controlled study of the effects of supraphysiologic L-T4 treatment on anxiety symptoms in bipolar depression. Anxiety symptoms were measured weekly with the Hamilton anxiety/somatization factor (HASF) score of the Hamilton Depression Rating Scale (HAMD) and the State- and Trait Anxiety Inventory (STAI). Results Treatment of both groups was associated with a significant reduction in anxiety symptoms (p < 0.001) with no statistical difference between groups (LT-4: from 5.9 (SD = 2.0) at baseline to 3.7 (SD = 2.4) at study end; placebo: from 6.1 (SD = 2.4) at baseline to 4.4 (SD = 2.8) at study end; p = 0.717). Severity of anxiety at baseline did not show a statistically significant correlation to the antidepressive effect of treatment with supraphysiologic doses of L-T4 (p = 0.811). Gender did not show an influence on the reduction of anxiety symptoms (females: from 5.6 (SD = 1.7) at baseline to 3.5 (SD = 2.4) at study end; males: from 6.1 (SD = 2.3) at baseline to 4.0 (SD = 2.4) at study end; p = 0.877). Conclusions This study failed to detect a difference in change of anxiety between bipolar depressed patients treated with supraphysiologic doses of L-T4 or placebo. Comorbid anxiety symptoms should not be considered a limitation for the administration of supraphysiologic doses of L-T4 refractory bipolar depressed patients. Trial registration ClinicalTrials, ClinicalTrials.gov identifier: NCT01528839. Registered 2 June 2012—Retrospectively registered, https://clinicaltrials.gov/ct2/show/study/NCT01528839


2013 ◽  
Vol 28 (6) ◽  
pp. 386-391 ◽  
Author(s):  
I. Manor ◽  
A. Magen ◽  
D. Keidar ◽  
S. Rosen ◽  
H. Tasker ◽  
...  

AbstractObjective:To evaluate the safety of phosphatidylserine (PS) enriched with omega3 fatty acids, mainly eicosapentaenoic (PS-Omega3) in children with attention-deficit hyperactivity disorder (ADHD).Methods:Two hundred children diagnosed with ADHD were randomised to receive either PS-Omega3 (300 mg PS-Omega3/day) or placebo for 15 weeks. One hundred and fifty children continued into an open-label extension for an additional 15 weeks in which they all consumed PS-Omega3 (150 mg PS-Omega3/day). Standard blood biochemical and haematological safety parameters, blood pressure, heart rate, weight and height were evaluated. Adverse events and the Side Effect Rating Scale were also assessed.Results:One hundred and sixty-two participants completed the double-blind phase. No significant differences were noted between the two study groups in any of the safety parameters evaluated. One hundred and forty participants completed the open-label phase. At the end of this phase, no significant changes from baseline were observed in any of the studied parameters among participants who consumed PS-Omega3 for 30 weeks.Conclusions:Study results demonstrate that consumption of PS-Omega3 by children with ADHD, as indicated in a 30-week evaluation period, is safe and well tolerated, without any negative effect on body weight or growth.


2018 ◽  
Vol 49 (4) ◽  
pp. 655-663 ◽  
Author(s):  
Fernanda Palhano-Fontes ◽  
Dayanna Barreto ◽  
Heloisa Onias ◽  
Katia C. Andrade ◽  
Morgana M. Novaes ◽  
...  

AbstractBackgroundRecent open-label trials show that psychedelics, such as ayahuasca, hold promise as fast-onset antidepressants in treatment-resistant depression.MethodsTo test the antidepressant effects of ayahuasca, we conducted a parallel-arm, double-blind randomized placebo-controlled trial in 29 patients with treatment-resistant depression. Patients received a single dose of either ayahuasca or placebo. We assessed changes in depression severity with the Montgomery-Åsberg Depression Rating Scale (MADRS) and the Hamilton Depression Rating scale at baseline, and at 1 (D1), 2 (D2), and 7 (D7) days after dosing.ResultsWe observed significant antidepressant effects of ayahuasca when compared with placebo at all-time points. MADRS scores were significantly lower in the ayahuasca group compared with placebo at D1 and D2 (p= 0.04), and at D7 (p< 0.0001). Between-group effect sizes increased from D1 to D7 (D1: Cohen'sd= 0.84; D2: Cohen'sd= 0.84; D7: Cohen'sd= 1.49). Response rates were high for both groups at D1 and D2, and significantly higher in the ayahuasca group at D7 (64%v.27%;p= 0.04). Remission rate showed a trend toward significance at D7 (36%v.7%,p= 0.054).ConclusionsTo our knowledge, this is the first controlled trial to test a psychedelic substance in treatment-resistant depression. Overall, this study brings new evidence supporting the safety and therapeutic value of ayahuasca, dosed within an appropriate setting, to help treat depression. This study is registered athttp://clinicaltrials.gov(NCT02914769).


2021 ◽  
Vol 39 (6_suppl) ◽  
pp. 240-240
Author(s):  
Neal D. Shore ◽  
Karim Fizazi ◽  
Teuvo Tammela ◽  
Murilo Luz ◽  
Manuel Philco Salas ◽  
...  

240 Background: DARO is a structurally distinct androgen receptor inhibitor approved for the treatment of non-metastatic castration-resistant prostate cancer (nmCRPC) based on significantly prolonged metastasis-free survival compared with PBO (median 40.4 vs 18.4 months; hazard ratio [HR] 0.41; 95% confidence interval [CI] 0.34–0.50; P < 0.0001) and a favorable safety profile in the phase III ARAMIS trial. Following unblinding at the primary analysis, crossover from PBO to DARO was permitted for the subsequent open-label treatment phase. Sensitivity analyses were performed to assess the effect of PBO–DARO crossover on OS benefit. Methods: Patients (pts) with nmCRPC receiving androgen deprivation therapy were randomized 2:1 to DARO (n = 955) or PBO (n = 554). In addition to OS, secondary endpoints included times to pain progression, first cytotoxic chemotherapy, first symptomatic skeletal event, and safety. The OS analysis was planned to occur after approximately 240 deaths, and secondary endpoints were evaluated in a hierarchical order. Iterative parameter estimation (IPE) and rank-preserving structural failure time (RPSFT) analyses were performed as pre-planned sensitivity analyses to adjust for the treatment effect of PBO–DARO crossover. The IPE method used a parametric model for the survival times and iteratively determined the model parameter describing the magnitude of the treatment effect, whereas a grid search and non-parametric log-rank test were used for the RPSFT analysis. The IPE and RPSFT analyses both generated a Kaplan–Meier curve for the PBO arm that predicts what would have been observed in the absence of PBO–DARO crossover. Results: After unblinding, 170 pts (30.7% of those randomized to PBO) crossed over from PBO to DARO; median treatment duration from unblinding to the final data cut-off was 11 months. Final analysis of the combined double-blind and open label periods was conducted after 254 deaths (15.5% of DARO and 19.1% of PBO pts) and showed a statistically significant OS benefit for DARO vs PBO (HR 0.69; 95% CI 0.53–0.88; P = 0.003). Results from the IPE (HR 0.66; 95% CI 0.51–0.84; P < 0.001) and RPSFT (HR 0.68; 95% CI 0.51–0.90; P = 0.007) analyses were similar to those from the intention-to-treat population, showing that the impact of PBO–DARO crossover was small. Additional analyses accounting for the effect of PBO–DARO crossover will be presented. The safety profile of DARO continued to be favorable at the final analysis, and discontinuation rates at the end of the double-blind period remained unchanged from the primary analysis (8.9% with DARO and 8.7% with PBO). Conclusions: Early treatment with DARO in men with nmCRPC is associated with significant improvement in OS regardless of pts crossing over from PBO to DARO. The safety profile of DARO remained favorable at the final analysis. Clinical trial information: NCT02200614.


2010 ◽  
Vol 10 ◽  
pp. 321-328 ◽  
Author(s):  
Natalie L. Rasgon ◽  
Heather A. Kenna ◽  
Katherine E. Williams ◽  
Bevin Powers ◽  
Tonita Wroolie ◽  
...  

A number of cross-sectional studies have suggested an association between insulin resistance (IR) and affective disorders. However, limited data exist on potential changes in IR in a prospective treatment of depression. The present pilot study tested the hypothesis that improvement of IR with the addition of an insulin-sensitizing agent would improve mood in nondiabetic patients with unipolar or bipolar depression, who had surrogate blood markers suggestive of IR. Surrogate IR-criteria blood markers were fasting plasma glucose >100 mg/dl or triglyceride (TG) to high density lipoprotein (HDL) ratio >3.0. Open-label rosiglitazone, titrated to a dose of 8 mg/day, was administered for 12 weeks to 12 patients with depressive disorder receiving treatment as usual (TAU). Eight patients who completed the 12-week study exhibited significant declines in both depression severity by the Hamilton Depression Rating Scale and the Clinical Global Impression scale, with moderate effect sizes noted. Modest improvement in Matsuda Index scores was also noted at 12 weeks, yet declines in depression severity scores were not associated with improvements in the endocrine markers (Matsuda Index, TG/HDL ratio, and body mass index). These results suggest the potential novel use for an insulin-sensitizing agent in the treatment of depressive disorders. Larger placebo-controlled studies are warranted.


CNS Spectrums ◽  
2009 ◽  
Vol 14 (5) ◽  
pp. 252-260 ◽  
Author(s):  
Katharine A. Phillips ◽  
William Menard

ABSTRACTIntroduction: Body dysmorphic disorder (BDD) is an often severe disorder, but few treatment studies have been conducted.Objective: This pilot study explored the efficacy and safety of the antiepileptic medication levetiracetam for BDD.Methods: Seventeen subjects with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition BDD participated in a 12-week open-label levetiracetam trial. Subjects were assessed at regular intervals with standard measures.Results: In intent-to-treat analyses, scores on the Yale-Brown Obsessive Compulsive Scale Modified for BDD (BDD-YBOCS), the primary outcome measure, decreased from 32.5±4.7 at baseline to 21.5±11.0 at endpoint (P<.001). Approximately 60% (n=9) of subjects were responders (≥30% decrease on the BDD-YBOCS). The mean time to response was 4.6±2.8 (range: 2-10) weeks. Scores also significantly improved on the Brown Assessment of Beliefs Scale, the Hamilton Rating Scale for Depression, the Global Assessment of Functioning Scale, and the Social and Occupational Functioning Assessment Scale. Scores did not significantly improve on the Quality of Life Enjoyment and Satisfaction Questionnaire, the Beck Anxiety Inventory, or the Social Phobia Inventory. The mean endpoint dose of levetiracetam was 2,044.1±1,065.2 (range: 250–3,000) mg/day, and it was relatively well-tolerated.Conclusion: Randomized, double-blind placebo-controlled studies of levetiracetam for BDD are needed to confirm these preliminary findings.


CNS Spectrums ◽  
2005 ◽  
Vol 10 (6) ◽  
pp. 3-5
Author(s):  
Richard H. Weisler

This discussion reviews data from two 3-week, double-blind, placebo-controlled pivotal trials of carbamazepine extended release capsules (CBZ ERC; SPD417.301 and SPD417.304); pooled results from these trials; data from a 3-week, double-blind, placebo-controlled trial in lithium non-responders or non-tolerators (SPD417.302); and additional supportive data from a 6-month, open-label, extension trial (SPD417.303). In addition, information on a retrospective chart review of 600 adolescent and adult bipolar patients on CBZ ERC is presented.In the first large double-blind, placebo-controlled study assessing CBZ ERC in acute mania, manic and mixed bipolar patients from multiple centers were hospitalized and all medications were discontinued. After reaching a stable baseline 2–5 days later, the patients were randomized to CBZ ERC (n=101; 59% with mixed states) or placebo (n=103; 47% with mixed states) for 3 weeks. An aggressive initial titration schedule was implemented, beginning with 200 mg BID and increased by 200 mg/day until good clinical response was achieved or the patient could not tolerate the dosage. Many patients were taking 1,200–1,600 mg/day by the end of week 1. Efficacy was assessed using the Young Mania Rating Scale (YMRS). The Clinical Global Impressions (CGI) scale and the Hamilton Rating Scale for Depression (HAM-D) were also followed.


2000 ◽  
Vol 6 (4) ◽  
pp. 255-266 ◽  
Author(s):  
K P Johnson ◽  
B R Brooks ◽  
C C Ford ◽  
A Goodman ◽  
J Guarnaccia ◽  
...  

In a randomized, placebo-controlled, double-blind study, glatiramer acetate (Copaxone®) reduced the relapse rate and slowed accumulation of disability for patients with relapsing-remitting multiple sclerosis. Of the original 251 patients randomized to receive glatiramer acetate or placebo, 208 chose to continue in an open-label study with all patients receiving active drug. The majority of the original double-blind cohort continues to receive glatiramer acetate by daily subcutaneous injection and are evaluated at 6-month intervals and during suspected relapse. The data reported here are from approximately 6 years of organized evaluation, including the double-blind phase of up to 35 months and the open-label phase of over 36 months. Daily subcutaneous injections of 20 mg glatiramer acetate were well tolerated. The mean annual relapse rate of the patients who received glatiramer acetate since randomization and continued into the open-label study was 0.42 (95% confidence interval (CI), CI=0.34-0.51). The rate per year has continued to drop and for the sixth year is 0.23. Of the group who have received glatiramer acetate without interruption for 5 or more years, 69.3% were neurologically unchanged or have improved from baseline by at least one step on the Expanded Disability Status Scale (EDSS). Patients who left the open-label phase were surveyed by questionnaire. The majority responded, providing information about their current status and reasons for dropping out. This study demonstrates the sustained efficacy of glatiramer acetate in reducing the relapse rate and in slowing the accumulation of disability in patients with relapsing forms of multiple sclerosis.


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