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In a phase 3 trial, patients with moderately to severely active ulcerative colitis were randomly assigned to receive placebo or ozanimod, a selective sphingosine-1-phosphate receptor modulator. Clinical remission was significantly greater with ozanimod during the induction and maintenance periods. The incidence of infection was higher with ozanimod than with placebo during maintenance.

In a placebo-controlled phase 2 trial involving patients with ulcerative colitis, ozanimod, an oral agonist of sphingosine-1-phosphate receptor subtypes 1 and 5, resulted in a slightly higher rate of clinical remission at 8 weeks. Ulcerative colitis is a chronic immune-mediated disease of the colon that is currently treated with mesalamine, glucocorticoids, thiopurines, and biologic agents. 1 , 2 A lack of universal response, the risks of infection and neoplasia, a requirement for parenteral administration, and the development of antidrug antibodies have created a need for safe and effective oral therapies. The sphingosine-1-phosphate (S1P) subtype 1 (S1P1) receptor is a member of a family of five widely expressed receptors (S1P1 through S1P5) that are responsible for regulating multiple immunologic and cardiovascular effects. 3 , 4 Cell-surface–associated S1P1 receptor plays a crucial role in the trafficking of lymphocytes from lymphoid . . .

Obesity is a health problem affecting more than 40% of US adults and 13% of the global population. Anti-obesity treatments including diet, exercise, surgery and pharmacotherapies have so far failed to reverse obesity incidence. Herein, we target obesity with a pharmacotherapeutic approach that decreases caloric efficiency by mitochondrial uncoupling. We show that a recently identified mitochondrial uncoupler BAM15 is orally bioavailable, increases nutrient oxidation, and decreases body fat mass without altering food intake, lean body mass, body temperature, or biochemical and haematological markers of toxicity. BAM15 decreases hepatic fat, decreases inflammatory lipids, and has strong antioxidant effects. Hyperinsulinemic-euglycemic clamp studies show that BAM15 improves insulin sensitivity in multiple tissue types. Collectively, these data demonstrate that pharmacologic mitochondrial uncoupling with BAM15 has powerful anti-obesity and insulin sensitizing effects without compromising lean mass or affecting food intake. Obesity is a global pandemic with limited treatment options. Here, the authors show evidence in mice that the mitochondrial uncoupler BAM15 effectively induces fat loss without affecting food intake or compromising lean body mass.

Amyotrophic lateral sclerosis is a progressive neurodegenerative disorder leading to muscle weakness and respiratory failure. Arimoclomol, a heat-shock protein-70 (HSP70) co-inducer, is neuroprotective in animal models of amyotrophic lateral sclerosis, with multiple mechanisms of action, including clearance of protein aggregates, a pathological hallmark of sporadic and familial amyotrophic lateral sclerosis. We aimed to evaluate the safety and efficacy of arimoclomol in patients with amyotrophic lateral sclerosis. ORARIALS-01 was a multinational, randomised, double-blind, placebo-controlled, parallel-group trial done at 29 centres in 12 countries in Europe and North America. Patients were eligible if they were aged 18 years or older and met El Escorial criteria for clinically possible, probable, probable laboratory-supported, definite, or familial amyotrophic lateral sclerosis; had an ALS Functional Rating Scale-Revised score of 35 or more; and had slow vital capacity at 70% or more of the value predicted on the basis of the participant's age, height, and sex. Patients were randomly assigned (2:1) in blocks of 6, stratified by use of a stable dose of riluzole or no riluzole use, to receive oral arimoclomol citrate 1200 mg/day (400 mg three times per day) or placebo. The Randomisation sequence was computer generated centrally. Investigators, study personnel, and study participants were masked to treatment allocation. The primary outcome was the Combined Assessment of Function and Survival (CAFS) rank score over 76 weeks of treatment. The primary outcome and safety were analysed in the modified intention-to-treat population. This trial is registered with ClinicalTrials.gov, NCT03491462, and is completed. Between July 31, 2018, and July 17, 2019, 287 patients were screened, 245 of whom were enrolled in the trial and randomly assigned. The modified intention-to-treat population comprised 239 patients (160 in the arimoclomol group and 79 in the placebo group): 151 (63%) were male and 88 (37%) were female; mean age was 57·6 years (SD 10·9). CAFS score over 76 weeks did not differ between groups (mean 0·51 [SD 0·29] in the arimoclomol group vs 0·49 [0·28] in the placebo group; p=0·62). Cliff's delta comparing the two groups was 0·039 (95% CI –0·116 to 0·194). Proportions of participants who died were similar between the treatment groups: 29 (18%) of 160 patients in the arimoclomol group and 18 (23%) of 79 patients in the placebo group. Most deaths were due to disease progression. The most common adverse events were gastrointestinal. Adverse events were more often deemed treatment-related in the arimoclomol group (104 [65%]) than in the placebo group (41 [52%]) and more often led to treatment discontinuation in the arimoclomol group (26 [16%]) than in the placebo group (four [5%]). Arimoclomol did not improve efficacy outcomes compared with placebo. Although available biomarker data are insufficient to preclude future strategies that target the HSP response, safety data suggest that a higher dose of arimoclomol would not have been tolerated. Orphazyme.

Ozanimod, approved for the treatment of moderately to severely active ulcerative colitis (UC) and relapsing multiple sclerosis (RMS), is a weak in vitro monoamine oxidase B (MAO-B) inhibitor. MAO-B inhibitors can cause serotonin accumulation with concomitant use of selective serotonin reuptake inhibitors (SSRIs) or serotonin and norepinephrine reuptake inhibitors (SNRIs). We evaluated the incidence of treatment-emergent adverse events (TEAEs) potentially associated with serotonin accumulation during ozanimod and concomitant SSRI/SNRI use in this post hoc analysis of pooled UC studies and the open-label extension RMS DAYBREAK. Data for ozanimod 0.92 mg from pooled UC studies (n = 1158; cutoff: January 10, 2022) and RMS DAYBREAK (n = 2257; cutoff: February 1, 2022) were analyzed. Concomitant SSRI/SNRI use was allowed in the UC (n = 67) and RMS (n = 274) studies. A narrow Medical Dictionary for Regulatory Activities search (\"serotonin syndrome,\" \"neuroleptic malignant syndrome,\" and \"malignant hyperthermia\") and a broad search including terms potentially associated with serotonin accumulation were conducted. The percentages of patients with TEAEs in both searches were analyzed by concomitant SSRI/SNRI use when the TEAE occurred. No patients had TEAEs matching the narrow search criteria. No differences were observed in the percentages of patients with ≥1 TEAE matching the broad search regardless of SSRI/SNRI use in UC (with: 25.4% [n = 17 of 67]; without: 15.0% [n = 164 of 1091]) and RMS (with: 12.4% [n = 34 of 274]; without: 15.6% [n = 310 of 1982]) studies. No evidence of increased TEAEs potentially associated with serotonin accumulation was observed with concurrent use of ozanimod and SSRIs/SNRIs. NCT01647516, NCT02531126, NCT02435992, NCT02576717.

The rapid spread of the coronavirus-2019 (COVID-19) Omicron EG.5 variant poses challenges to existing treatment strategies, and comparative real-world evidence between simnotrelvir-ritonavir and nirmatrelvir-ritonavir remains limited. We conducted a single-center retrospective study from July 01 to December 31, 2023, involving outpatient-diagnosed COVID-19 patients. We performed a descriptive analysis of epidemiologic characteristics, followed by regression analysis to identify key factors. Efficacy and safety differences between simnotrelvir-ritonavir and nirmatrelvir-ritonavir were then compared. A total of 545 patients were included, with 93.21% presenting with general symptoms, 88.81% with respiratory symptoms, 10.28% with gastrointestinal symptoms, and 9.36% with cardiovascular symptoms. Factors associated with delayed recovery included a BMI over 25 kg/m2 (P = 0.004), and symptoms lasting more than 3 days at presentation (P = 0.004). The efficacy of simnotrelvir-ritonavir and nirmatrelvir-ritonavir was comparable, with mean days to symptom recovery of 5.11 and 4.22 days, respectively. However, simnotrelvir-ritonavir had a higher incidence of adverse events (20.59%) compared to nirmatrelvir-ritonavir (6.69%), primarily gastrointestinal disorders. During the Omicron EG.5 epidemic, general and respiratory symptoms predominated, with delayed recovery associated with being overweight, late treatment initiation, and multiple comorbidities. Simnotrelvir-ritonavir and nirmatrelvir-ritonavir demonstrated comparable efficacy, while simnotrelvir-ritonavir had a poorer safety profile.

Background Catechol‐O‐methyl transferase (COMT) inhibitors are routinely used to manage motor fluctuations in Parkinson's disease (PD). We assessed the effect of opicapone on motor symptom severity in levodopa‐treated patients without motor complications. Methods This was a randomized, double‐blind, 24‐week, placebo‐controlled study of opicapone 50 mg as adjunct to levodopa (NCT04978597). Levodopa‐treated patients without motor complications were randomized to 24 weeks of double‐blind treatment with adjunct opicapone 50 mg or matching placebo. The primary efficacy endpoint was the mean change from baseline to week 24 in Movement Disorder Society‐Unified Parkinson's Disease Rating Scale Part III (MDS‐UPDRS‐III) total score. Results A total of 355 patients were randomized (opicapone 50 mg n = 177, placebo n = 178) and 322 (91%) completed the double‐blind period. The adjusted mean [95% CI] change from baseline to week 24 in MDS‐UPDRS‐III subscore was −6.5 [−7.9, −5.2] in the opicapone group versus −4.3 [−5.7, 3.0] in the placebo group resulting in a significant difference of −2.2 [−3.9, −0.5] favoring opicapone (p = 0.010). There was no difference in the incidence of patients who developed motor complications (5.5% with opicapone vs. 9.8% with placebo) and the incidence of adverse events considered related to study medication was similar between groups (opicapone 10.2% vs. placebo 13.5%). Conclusions Treatment with once‐daily adjunct opicapone was well tolerated, improved motor severity, and did not induce the development of motor complications. These results support the clinical usefulness of opicapone in the management of PD patients without motor complications.

Strategic Targeting of Registries and International Database of Excellence (STRIDE) is an ongoing, multicenter registry providing real-world evidence regarding ataluren use in patients with nonsense mutation Duchenne muscular dystrophy (nmDMD). We examined the effectiveness of ataluren + standard of care (SoC) in the registry versus SoC alone in the Cooperative International Neuromuscular Research Group (CINRG) Duchenne Natural History Study (DNHS), DMD genotype–phenotype/–ataluren benefit correlations and ataluren safety. Propensity score matching was performed to identify STRIDE and CINRG DNHS patients who were comparable in established disease progression predictors (registry cut-off date, 9 July 2018). Kaplan–Meier analyses demonstrated that ataluren + SoC significantly delayed age at loss of ambulation and age at worsening performance in timed function tests versus SoC alone (p ≤ 0.05). There were no DMD genotype–phenotype/ataluren benefit correlations. Ataluren was well tolerated. These results indicate that ataluren + SoC delays functional milestones of DMD progression in patients with nmDMD in routine clinical practice. NCT02369731. NCT02369731.

In about 10% of patients worldwide and more than 50% of patients in Israel, cystic fibrosis results from nonsense mutations (premature stop codons) in the messenger RNA (mRNA) for the cystic fibrosis transmembrane conductance regulator (CFTR). PTC124 is an orally bioavailable small molecule that is designed to induce ribosomes to selectively read through premature stop codons during mRNA translation, to produce functional CFTR. This phase II prospective trial recruited adults with cystic fibrosis who had at least one nonsense mutation in the CFTR gene. Patients were assessed in two 28-day cycles. During the first cycle, patients received PTC124 at 16 mg/kg per day in three doses every day for 14 days, followed by 14 days without treatment; in the second cycle, patients received 40 mg/kg of PTC124 in three doses every day for 14 days, followed by 14 days without treatment. The primary outcome had three components: change in CFTR-mediated total chloride transport; proportion of patients who responded to treatment; and normalisation of chloride transport, as assessed by transepithelial nasal potential difference (PD) at baseline, at the end of each 14-day treatment course, and after 14 days without treatment. The trial was registered with who.int/ictrp, and with clinicaltrials.gov, number NCT00237380. Transepithelial nasal PD was evaluated in 23 patients in the first cycle and in 21 patients in the second cycle. Mean total chloride transport increased in the first treatment phase, with a change of −7·1 (SD 7·0) mV (p<0·0001), and in the second, with a change of −3·7 (SD 7·3) mV (p=0·032). We recorded a response in total chloride transport (defined as a change in nasal PD of −5 mV or more) in 16 of the 23 patients in the first cycle's treatment phase (p<0·0001) and in eight of the 21 patients in the second cycle (p<0·0001). Total chloride transport entered the normal range for 13 of 23 patients in the first cycle's treatment phase (p=0·0003) and for nine of 21 in the second cycle (p=0·02). Two patients given PTC124 had constipation without intestinal obstruction, and four had mild dysuria. No drug-related serious adverse events were recorded. In patients with cystic fibrosis who have a premature stop codon in the CFTR gene, oral administration of PTC124 to suppress nonsense mutations reduces the epithelial electrophysiological abnormalities caused by CFTR dysfunction. PTC Therapeutics, Cystic Fibrosis Foundation Therapeutics.

Background BAL101553 (lisavanbulin), the lysine prodrug of BAL27862 (avanbulin), exhibits broad anti-proliferative activity in human cancer models refractory to clinically relevant microtubule-targeting agents. Methods This two-part, open-label, phase 1/2a study aimed to determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs) of 2-h infusion of BAL101553 in adults with advanced or recurrent solid tumours. The MTD was determined using a modified accelerated titration design in phase I. Patients received BAL101553 at the MTD and at lower doses in the phase 2a expansion to characterise safety and efficacy and to determine the recommended phase 2 dose (RP2D). Results Seventy-three patients received BAL101553 at doses of 15–80 mg/m 2 (phase 1, n  = 24; phase 2a, n  = 49). The MTD was 60 mg/m 2 ; DLTs observed at doses ≥60 mg/m 2 were reversible Grade 2–3 gait disturbance with Grade 2 peripheral sensory neuropathy. In phase 2a, asymptomatic myocardial injury was observed at doses ≥45 mg/m 2 . The RP2D for 2-h intravenous infusion was 30 mg/m 2 . The overall disease control rate was 26.3% in the efficacy population. Conclusions The RP2D for 2-h infusion of BAL101553 was well tolerated. Dose-limiting neurological and myocardial side effects were consistent with the agent’s vascular-disrupting properties. Clinical trial registration EudraCT: 2010-024237-23.