scholarly journals Pharmacokinetics and pharmacodynamics of azithromycin in severe malaria bacterial co-infection in African children (TABS-PKPD): a protocol for a Phase II randomised controlled trial

2021 ◽  
Vol 6 ◽  
pp. 161
Author(s):  
Peter Olupot-Olupot ◽  
William Okiror ◽  
Hellen Mnjalla ◽  
Rita Muhindo ◽  
Sophie Uyoga ◽  
...  
Keyword(s):  
Severe Malaria ◽  
Controlled Trial ◽  
Antimicrobial Treatment ◽  
Phase Iii ◽  
Current Evidence ◽  
Population Pharmacokinetic ◽  
Pharmacokinetic Data ◽  
Open Label ◽  
Post Discharge ◽  
African Children

Background: African children with severe malaria are susceptible to Gram-negative bacterial co-infection, largely non-typhoidal Salmonellae, leading to a substantially higher rates of in-hospital and post-discharge mortality than those without bacteraemia. Current evidence for treating co-infection is lacking, and there is no consensus on the dosage or length of treatment required. We therefore aimed to establish the appropriate dose of oral dispersible azithromycin as an antimicrobial treatment for children with severe malaria and to investigate whether antibiotics can be targeted to those at greatest risk of bacterial co-infection using clinical criteria alone or in combination with rapid diagnostic biomarker tests. Methods: A Phase I/II open-label trial comparing three doses of azithromycin: 10, 15 and 20 mg/kg spanning the lowest to highest mg/kg doses previously demonstrated to be equally effective as parenteral treatment for other salmonellae infection. Children with the highest risk of bacterial infection will receive five days of azithromycin and followed for 90 days. We will generate relevant pharmacokinetic data by sparse sampling during dosing intervals. We will use population pharmacokinetic modelling to determine the optimal azithromycin dose in severe malaria and investigate azithromycin exposure to change in C-reactive protein, a putative marker of sepsis at 72 hours, and microbiological cure (seven-day), alone and as a composite with seven-day survival. We will also evaluate whether a combination of clinical, point-of-care diagnostic tests, and/or biomarkers can accurately identify the sub-group of severe malaria with culture-proven bacteraemia by comparison with a control cohort of children hospitalized with severe malaria at low risk of bacterial co-infection. Discussion: We plan to study azithromycin because of its favourable microbiological spectrum, its inherent antimalarial and immunomodulatory properties and dosing and safety profile. This study will generate new data to inform the design and sample size for definitive Phase III trial evaluation. Registration: ISRCTN49726849 (27th October 2017).

scholarly journals The Children's Anti-inflammatory REliever (CARE) study: a protocol for a randomised controlled trial of budesonide-formoterol as sole reliever therapy in children with mild asthma

2021 ◽  
pp. 00271-2021
Author(s):  
Lee Hatter ◽  
Pepa Bruce ◽  
Mark Holliday ◽  
Augustus J Anderson ◽  
Irene Braithwaite ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Evidence Base ◽  
Mild Asthma ◽  
Phase Iii ◽  
Current Evidence ◽  
Open Label ◽  
Common Chronic Disease ◽  
Global Initiative For Asthma ◽  
Global Initiative ◽  
Randomised Controlled

BackgroundAsthma is the most common chronic disease in children, many of whom are managed solely with a short-acting β2-agonist (SABA). In adults, the evidence that budesonide-formoterol as sole reliever therapy markedly reduces the risk of severe exacerbations compared with SABA alone has contributed to the Global Initiative for Asthma recommending against SABA monotherapy in this population. The lack of current evidence in children means it is unknown whether these findings are also relevant to this demographic. High-quality randomised controlled trials (RCTs) are needed.ObjectiveTo determine the efficacy and safety of as-needed budesonide-formoterol therapy compared with as-needed salbutamol in children aged five to 15 years with mild asthma, who only use a SABA.MethodsA 52-week, open-label, parallel group, phase III, RCT will recruit 380 children aged five to 15 years with mild asthma (ACTRN12620001091998). Participants will be randomised 1:1 to either budesonide-formoterol (Symbicort Rapihaler®) 50/3mcg, two actuations as needed or salbutamol (Ventolin®) 100mcg, two actuations as needed. The primary outcome is asthma attacks as rate per participant per year. Secondary outcomes assess asthma control, lung function, exhaled nitric oxide, and treatment step change. A cost-effectiveness analysis is also planned.ConclusionThis is the first RCT to assess the safety and efficacy of as-needed budesonide-formoterol in children with mild asthma. The results will provide a much-needed evidence base for the treatment of mild asthma in children.

scholarly journals Intravitreal conbercept for diabetic macular oedema: 2-year results from a randomised controlled trial and open-label extension study

2021 ◽  
pp. bjophthalmol-2020-318690
Author(s):  
Kun Liu ◽  
Hanying Wang ◽  
Wei He ◽  
Jian Ye ◽  
Yanping Song ◽  
...  
Keyword(s):  
Macular Oedema ◽  
Laser Photocoagulation ◽  
Sham Group ◽  
Controlled Trial ◽  
Diabetic Macular Oedema ◽  
Intravitreal Injections ◽  
Phase Iii ◽  
Extension Study ◽  
Open Label ◽  
Open Label Extension

BackgroundTo demonstrate the efficacy and safety of intravitreal injections of conbercept versus laser photocoagulation in the treatment of diabetic macular oedema (DME).MethodsA 12-month multicentre, randomised, double-masked, double-sham, parallel controlled, phase III trial (Sailing Study), followed by a 12-month open-label extension study. Patients with centre-involved DME were randomly assigned to receive either laser photocoagulation followed by pro re nata (PRN) sham intravitreal injections (laser/sham) or sham laser photocoagulation followed by PRN 0.5 mg conbercept intravitreal injections (sham/conbercept). Patients who entered the extension study received PRN conbercept treatment. The primary endpoint was the changes in best-corrected visual acuity (BCVA) from baseline.ResultsA total of 248 eyes were included in the full analysis set and 157 eyes continued in the extension study. Significant improvement in mean change in BCVA from baseline to month 12 was observed in the sham/conbercept group (8.2±9.5 letters), whereas no improvement was observed in the laser/sham group (0.3±12.0 letters). Patients in the laser/sham group showed a marked improvement in BCVA after the switch to conbercept in the extension study, and there was no difference in BCVA between the two groups at the end of the extension study.ConclusionThe use of a conbercept PRN intravitreal injection regimen improved the BCVA of patients with DME, and its efficacy was better than that of laser photocoagulations, and the same efficacy was observed when the eyes treated with laser alone were switched to conbercept.Trial registration numberNCT02194634.

scholarly journals Protocol for the DisCoVeRy trial: multicentre, adaptive, randomised trial of the safety and efficacy of treatments for COVID-19 in hospitalised adults

BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e041437
Author(s):  
Florence Ader
Keyword(s):  
Controlled Trial ◽  
Clinical Status ◽  
Antiviral Agents ◽  
Randomised Trial ◽  
Phase Iii ◽  
Ordinal Scale ◽  
Control Group ◽  
National Agency ◽  
Open Label ◽  
Hospitalised Patients

IntroductionTo find effective and safe treatments for COVID-19, the WHO recommended to systemically evaluate experimental therapeutics in collaborative randomised clinical trials. As COVID-19 was spreading in Europe, the French national institute for Health and Medical Research (Inserm) established a transdisciplinary team to develop a multi-arm randomised controlled trial named DisCoVeRy. The objective of the trial is to evaluate the clinical efficacy and safety of different investigational re-purposed therapeutics relative to Standard of Care (SoC) in patients hospitalised with COVID-19.Methods and analysisDisCoVeRy is a phase III, open-label, adaptive, controlled, multicentre clinical trial in which hospitalised patients with COVID-19 in need of oxygen therapy are randomised between five arms: (1) a control group managed with SoC and four therapeutic arms with re-purposed antiviral agents: (2) remdesivir + SoC, (3) lopinavir/ritonavir + SoC, (4) lopinavir/ritonavir associated with interferon (IFN)-β−1a + SoC and (5) hydroxychloroquine + SoC. The primary endpoint is the clinical status at Day 15 on the 7-point ordinal scale of the WHO Master Protocol (V.3.0, 3 March 2020). This trial involves patients hospitalised in conventional departments or intensive care units both from academic or non-academic hospitals throughout Europe. A sample size of 3100 patients (620 patients per arm) is targeted. This trial has begun on 22 March 2020. Since 5 April 2020, DisCoVeRy has been an add-on trial of the Solidarity consortium of trials conducted by the WHO in Europe and worldwide. On 8 June 2020, 754 patients have been included.Ethics and disseminationInserm is the sponsor of DisCoVeRy. Ethical approval has been obtained from the institutional review board on 13 March 2020 (20.03.06.51744) and from the French National Agency for Medicines and Health Products (ANSM) on 9 March 2020. Results will be submitted for publication in peer-reviewed journals.Trial registration numberNCT04315948 Eudra-CT 2020-000936-23.

scholarly journals Unfractionated heparin in acute chest syndrome: a pilot feasibility randomized controlled trial of unfractionated heparin vs. standard of care in acute chest syndrome

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Craig D. Seaman ◽  
Enrico Novelli ◽  
Laura De Castro ◽  
Margaret V. Ragni
Keyword(s):  
Unfractionated Heparin ◽  
Large Scale ◽  
Controlled Trial ◽  
Standard Of Care ◽  
Phase Iii ◽  
Therapeutic Modality ◽  
Red Blood Cell Transfusion ◽  
Acute Chest Syndrome ◽  
Open Label ◽  
Randomized Controlled

Abstract Background Acute chest syndrome (ACS) is the leading cause of mortality in sickle cell disease (SCD). The pathogenesis of ACS is complex and not entirely understood with multiple etiologies likely contributing simultaneously. One particular etiology is pulmonary vascular occlusion due to thrombosis. Thus, anticoagulation is an attractive therapeutic modality. Methods This was a single-center, randomized controlled, open-label, pilot study to determine the feasibility of performing a larger multicenter phase III trial to assess the effects of unfractionated heparin (UFH) in ACS. Subjects were randomized within 24 h of diagnosis of ACS to one of two treatment arms, UFH, and standard of care (SOC), or no UFH and SOC. UFH was given intravenously for 7 days, or until discharge, if discharge was shorter than 7 days. SOC consisted of intravenous fluids, antibiotics, supplemental oxygen, analgesia, red blood cell transfusion, and exchange transfusion. Results From July 2014 to June 2018, a total of 7 patients underwent randomization (four patients received UFH in addition to SOC and 3 patients received SOC only). Two of the prespecified feasibility criteria were not met: the capacity to consent eligible individuals and the timely notification of hospitalized patients with ACS necessary to permit randomization within 24 h of diagnosis; thus, as a result of poor enrollment, the study was terminated early. The duration of hospitalization was 279.43 (SD 267.98) and 127.31 (SD 137.70) h in the UFH and SOC arms, respectively. The duration of hypoxemia, leukocytosis, fever, and moderate to severe pain was 117.52 (SD 60.52), 24.90 (SD 29.69), 117.52 (SD 60.52), and 117.52 (SD 60.52) h, respectively, in the UFH group, and 51.49 (SD 44.79), 0, 53.11 (SD 25.06), and 88.68 (SD 72.77) h, respectively, in the SOC group. No major bleeding was noted in either group. Conclusions Our study did not achieve prespecified feasibility criteria, resulting in poor enrollment and early termination, and serves to highlight some of the pitfalls experienced in clinical research in SCD. It did show the use of UFH without any major adverse events in 7 subjects. No future large-scale study is planned. Trials registration Registered at ClinicalTrials.gov (NCT #02098993) on March 28, 2014.

scholarly journals O06 Methadone dosing strategies in preterm neonates can be simplified

2019 ◽  
Vol 104 (6) ◽  
pp. e3.1-e3
Author(s):  
T van Donge ◽  
S Samiee-Zafarghandy ◽  
M Pfister ◽  
G Koch ◽  
M Kalani ◽  
...  
Keyword(s):  
Gestational Age ◽  
Clinical Investigation ◽  
Withdrawal Symptoms ◽  
Preterm Neonates ◽  
Population Pharmacokinetic ◽  
Pharmacokinetic Data ◽  
Open Label ◽  
Elimination Kinetics ◽  
Dosing Strategies ◽  
Dosing Strategy

AimsA dramatic increase in newborn infants with neonatal abstinence syndrome has been observed and these neonates are frequently treated with complex methadone dosing schemes to control their withdrawal symptoms. Despite its abundant use, hardly any data on the pharmacokinetics of methadone is available in preterm neonates. Therefore we investigated developmental pharmacokinetics of methadone and evaluated current dosing strategies and possible simplification in this vulnerable population.MethodsA single center open-label prospective study was performed to collect pharmacokinetic data after a single oral dose of methadone in preterm neonates. A population pharmacokinetic model was built to characterize developmental pharmacokinetics of methadone and to assess the effects of weight and age on clearance and volume of distribution. In addition, simulation techniques were applied to evaluate reported dosing scenarios, investigate methadone exposure levels and examine the feasibility of simplified dosing recommendations.ResultsIn total, 121 methadone concentrations were collected from 31 preterm neonates. The median weight and gestational age amounted 1.6 kg and 32 weeks, respectively. A one-compartment model with first order absorption and elimination kinetics best described the data for (R)- and (S)-methadone. Clearance was observed to be higher for the (R)-enantiomer as compared to the (S)-enantiomer (0.244 versus 0.167 L/h). Target exposures, based on simulations, can be maintained with a simplified dosing strategy during the first four days of treatment. It is therefore questionable if there is a need for the currently used more extended dosing regimen of methadone in neonates.conclusionsThis clinical investigation demonstrates that the clearance of methadone increases with advancing gestational age and higher clearance values and volumes of distribution can be observed for (R)-methadone as compared to (S)-methadone in preterm neonates. Simulations that account for developmental pharmacokinetics indicate that a simplified methadone dosing strategy can maintain target exposure to control withdrawal symptoms in preterm neonates.Disclosure(s)Nothing to disclose

scholarly journals Intramuscular Artesunate for Severe Malaria in African Children: A Multicenter Randomized Controlled Trial

PLoS Medicine ◽  
2016 ◽  
Vol 13 (1) ◽  
pp. e1001938 ◽  
Author(s):  
Peter G. Kremsner ◽  
Akim A. Adegnika ◽  
Aurore B. Hounkpatin ◽  
Jeannot F. Zinsou ◽  
Terrie E. Taylor ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Severe Malaria ◽  
Controlled Trial ◽  
Randomized Controlled ◽  
African Children ◽  
Multicenter Randomized Controlled Trial ◽  
Intramuscular Artesunate

scholarly journals Efficacy and safety of abatacept in active primary Sjögren’s syndrome: results of a phase III, randomised, placebo-controlled trial

2020 ◽  
pp. annrheumdis-2020-218599
Author(s):  
Alan N Baer ◽  
Jacques-Eric Gottenberg ◽  
E William St Clair ◽  
Takayuki Sumida ◽  
Tsutomu Takeuchi ◽  
...  
Keyword(s):  
Sjögren’S Syndrome ◽  
Sjögren's Syndrome ◽  
Controlled Trial ◽  
Sjogren’S Syndrome ◽  
Sjogren's Syndrome ◽  
Phase Iii ◽  
Open Label ◽  
Double Blind ◽  
Patient Reported ◽  
Sjögren‘S Syndrome

ObjectivesTo evaluate efficacy and safety of abatacept in adults with active primary Sjögren’s syndrome (pSS) in a phase III, randomised, double-blind, placebo-controlled trial.MethodsEligible patients (moderate-to-severe pSS [2016 ACR/European League Against Rheumatism (EULAR) criteria], EULAR Sjögren’s Syndrome Disease Activity Index [ESSDAI] ≥5, anti-SS-related antigen A/anti-Ro antibody positive) received weekly subcutaneous abatacept 125 mg or placebo for 169 days followed by an open-label extension to day 365. Primary endpoint was mean change from baseline in ESSDAI at day 169. Key secondary endpoints were mean change from baseline in EULAR Sjögren’s Syndrome Patient Reported Index (ESSPRI) and stimulated whole salivary flow (SWSF) at day 169. Other secondary clinical endpoints included glandular functions and patient-reported outcomes. Selected biomarkers and immune cell phenotypes were examined. Safety was monitored.ResultsOf 187 patients randomised, 168 completed double-blind period and 165 continued into open-label period. Mean (SD) baseline ESSDAI and ESSPRI total scores were 9.4 (4.3) and 6.5 (2.0), respectively. Statistical significance was not reached for primary (ESSDAI −3.2 abatacept vs −3.7 placebo, p=0.442) or key secondary endpoints (ESSPRI, p=0.337; SWSF, p=0.584). No clinical benefit of abatacept over placebo at day 169 was seen with other clinical and PRO endpoints. Relative to baseline, abatacept was associated with significant differences vs placebo in some disease-relevant biomarkers (including IgG, IgA, IgM-rheumatoid factor) and pathogenic cell subpopulations (post hoc analyses). No new safety signals were identified.ConclusionsAbatacept treatment did not result in significant clinical efficacy compared with placebo in patients with moderate-to-severe pSS, despite evidence of biological activity.

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