Publications by authors named "Yves Donazzolo"

Background: A next-generation Vero cell rabies vaccine (PVRV-NG2) was developed using the same Pitman-Moore strain as in the licensed purified Vero cell vaccine (PVRV; Verorab) and the human diploid cell vaccine (HDCV; Imovax Rabies®).

Methods: This dual-center, modified, double-blind, phase 3 study evaluated the immunogenic non-inferiority and safety of PVRV-NG2 with and without concomitant intramuscular human rabies immunoglobulin (HRIG) versus PVRV + HRIG and HDCV + HRIG in a simulated post-exposure prophylaxis (PEP) regimen. Healthy adults ≥18 years old (N = 640) were randomized 3:1:1:1 to PVRV-NG2 + HRIG, PVRV + HRIG, HDCV + HRIG, or PVRV-NG2 alone (administered as single vaccine injections on days [D] 0, D3, D7, D14, and 28, with HRIG on D0 in applicable groups).

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Background And Objectives: Acoziborole is a novel boron-containing candidate developed as an oral drug for the treatment of human African trypanosomiasis (HAT). Results from preclinical studies allowed progression to Phase 1 trials. We aimed to determine the best dose regimen for all stages of HAT.

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Background: Probiotics may alleviate lactose maldigestion.

Objectives: The objective was to select a probiotic with high lactase activity and compare it with lactase and placebo in clinical trials.

Methods: Bacterial cultures were screened for lactase activity in a model of the upper gastrointestinal (GI) tract.

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Aims: Anaphylaxis guidelines recommend intramuscular adrenaline, commonly 300 μg administered using an auto-injector device. However, overweight/obese patients may require a higher adrenaline dose for adequate cardiovascular (CV) response. This study evaluated the pharmacokinetics (PK) and pharmacodynamic (PD) CV profiles after a single 500 μg adrenaline injection via Anapen auto-injector in healthy normal weight males and otherwise healthy, overweight or obese females.

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The European Federation for Exploratory Medicines Development (EUFEMED) organized a meeting in Leuven, Belgium entitled 'The new FIH EMA guideline: Disruptive or constructive?' to provide a forum for stakeholders to discuss the guideline's operational impact. The revised EMA Guideline on strategies to identify and mitigate risks for first-in-human (FIH) and early clinical trials with investigational products was published on 20 July 2017. The revision gave guidance on sentinel dosing/staggering of subjects within a multiple-ascending dose (MAD) clinical trial, permissible maximum exposure/investigation of supra-therapeutic doses and dose escalations above the no-observed adverse effect level.

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The first formal conference of the EUropean Federation for Exploratory MEdicines Development (EUFEMED) held in London was the result of a collaborative effort of its founding associations: the Association for Applied Human Pharmacology (AGAH; Germany), the Association for Human Pharmacology in the Pharmaceutical Industry (AHPPI; UK), the Belgian Association of Phase-I Units (BAPU; Belgium), and Club Phase-I (France). The conference focused on innovation and risk management in early clinical drug development. Among other innovations, immunotherapy in oncology and inflammatory diseases were discussed as well as the importance of adaptive trial designs in early clinical drug development.

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Bifidobacterium animalis subsp. lactis HN019 (HN019) ameliorates chronic idiopathic constipation. Our aim was to determine the efficacy and safety of 28-day supplementation with 1 × 10 or 1 × 10 CFU of HN019/day for constipation.

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Background: The administration of adrenaline is a life-saving intervention for anaphylactic reactions. However, it has been questioned whether the needle length of the autoinjectors is sufficient to achieve genuine intramuscular delivery and optimal bioavailability.

Objective: To assess the adequacy of Anapen, which has a relatively short needle length (10.

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Here, we report a randomized multicenter phase III trial assessing the lot-to-lot consistency of the 2014-2015 Northern Hemisphere quadrivalent split-virion inactivated influenza vaccine (IIV4; Sanofi Pasteur) and comparing its immunogenicity and safety with that of trivalent inactivated influenza vaccine (IIV3) in younger and older adults (EudraCT no. 2014-000785-21). Younger (18-60 y, n = 1114) and older (>60 y, n = 1111) adults were randomized 2:2:2:1:1 to receive a single dose of one of three lots of IIV4, the licensed IIV3 containing the B Yamagata lineage strain, or an investigational IIV3 containing the B Victoria lineage strain.

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An inactivated split-virion trivalent influenza vaccine (IIV3; Vaxigrip®, Sanofi Pasteur) has been available globally since 1968. Here, we describe the results of an open-label, post-licensure trial (EudraCT no. 2014-005078-12) to confirm the immunogenicity and safety of the Southern Hemisphere 2015 formulation of IIV3.

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Objective: The aim of this study was to compare the efficacy and safety of a new oromucosal ibuprofen form, ibuprofen 25 mg lozenge, in single and repeat dosing for up to 4 days, to the matched placebo, in the treatment of acute sore throat pain in adults.

Methods: In this randomised, double-blind, placebo-controlled trial, adult patients with non-streptococcal sore throat and signs of moderate-to-severe associated pain (≥5 on the objective Tonsillo-Pharyngitis Assessment 21-point scale and ≥60 mm on the subjective 0-100 mm visual analogue Sore Throat Pain Intensity Scale [STPIS]) were assigned ibuprofen 25 mg (n=194) or matching placebo (n=191) lozenge treatment. Efficacy was assessed (at the investigating centre up to 2 hours after first dosing, then on an ambulatory basis) by parameters derived from patient's scores on scales of pain relief, pain intensity, and global efficacy assessment.

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Purpose: In vitro data showed that selexipag and its active metabolite (ACT-333679) have an inductive effect on CYP3A4, CYP2B6, and CYP2C9 at concentrations approximately 100-fold higher than the maximum plasma concentration (C ) measured under steady-state conditions. In order to confirm in vivo the lack of induction at the enterocyte level, we assessed the effect of selexipag on midazolam, a substrate of hepatic and intestinal CYP3A4.

Methods: This study was conducted according to an open-label, randomized, two-way crossover design.

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Background And Purpose: Thrombin-activatable fibrinolysis inhibitor (TAFI) activation following thrombolysis may affect thrombolysis effectiveness in acute ischemic stroke (AIS). To support this hypothesis, we propose to study the relationship between TAFI consumption, activated/inactivated TAFI (TAFIa/ai) and stroke severity and outcome in 2 groups of AIS patients, one treated and one untreated with intravenous recombinant tissue type plasminogen activator (rt-PA).

Methods: In this prospective, longitudinal, multicenter, observational study, we aimed to study the association between TAFIa/ai and stroke outcome.

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Emerging resistance to antimalarial agents raises the need for new drugs. ACT-451840 is a new compound with potent activity against sensitive and resistant Plasmodium falciparum strains. This was a first-in-humans single-ascending-dose study to investigate the safety, tolerability, and pharmacokinetics of ACT-451840 across doses of 10, 50, 200, and 500 mg in healthy male subjects.

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The aim of the study was to assess the magnitude of the CYP3A4 inhibitory effect of 2 dosing regimens of ketoconazole and the influence of the pharmacokinetic properties of the CYP3A4 substrate on the extent of the substrate exposure increase. For this purpose, a clinical study was conducted and PBPK modeling simulations were performed. A crossover study was conducted in healthy subjects.

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As a concentrated source of saturated fat, cheese consumption is considered to be associated with increased cholesterolemia and generally forbidden in dietary guidelines for adults with hypercholesterolemia. The aim of this study was to evaluate the impact of saturated fatty acids on lipid parameters and blood pressure with regards to different types of dairy products: Camembert and full-fat yoghurt. One-hundred and fifty-nine moderate hypercholesterolemic subjects without treatment were instructed to consume two full-fat yoghurts (2 × 125 g) per day for 3 weeks (run-in period) and then for a further period of 5 weeks, either two full-fat yoghurts or two 30 g servings of Camembert cheese per day.

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Goals: The aim of this study was to validate the ability of symptom frequency questionnaire to differentiate between irritable bowel syndrome (IBS) patients and healthy subjects.

Background: A digestive symptom frequency questionnaire (DSFQ) was previously used in a food efficacy trial in a non-IBS population with mild gastrointestinal symptoms.

Study: We compared 2 well-defined populations: 100 IBS patients fulfilling Rome III criteria (mean age 32 y; range, 18 to 59 y), and 100 sex-matched and age-matched healthy subjects.

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: The effects of the antidepressant agomelatine up to a supratherapeutic dose (400 mg, single dose) on the QT corrected (QTc) interval were assessed in a randomized, double-blind, placebo- and positive-controlled, crossover thorough QT/QTc study in young healthy volunteers (29 males and 31 females). The primary criterion was the study of male or female population-derived QT-corrected interval (QTcP). The main analysis on the QTcP demonstrated that among the 10 postdose measurement times planned, the largest 1-sided 95% confidence interval upper bound of the difference between agomelatine 50 mg and placebo-adjusted means, and 1 of the differences between agomelatine 400 mg and placebo-adjusted means were both strictly inferior to the 10 millisecond upper-bound threshold of regulatory concern.

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Background: Although reperfusion injury has been shown to be responsible for cardiomyocytes death after an acute myocardial infarction, there is currently no drug on the market that reduces this type of injury. TRO40303 is a new cardioprotective compound that was shown to inhibit the opening of the mitochondrial permeability transition pore and reduce infarct size after ischemia-reperfusion in a rat model of cardiac ischemia-reperfusion injury.

Methods: In the rat model, the therapeutic window and the dose effect relationship were investigated in order to select the proper dose and design for clinical investigations.

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Background: Hereditary hemorrhagic telangiectasia (HHT) is a dominantly inherited genetic vascular disorder in which epistaxis is the most frequent manifestation, responsible for high morbidity. Management of this symptom has no standard, and local treatments are often aggressive. Their efficacy is variable and has not been proven.

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Background And Aims: Although two antigenically distinct B strain lineages of influenza have co-circulated globally since the mid-1980s, trivalent influenza vaccines (TIVs) contain only one, resulting in frequent mismatches. This study examined the safety and immunogenicity of an inactivated quadrivalent influenza vaccine (QIV) candidate.

Methods: This was a phase III, randomized, active-controlled, multicenter trial in adults during the 2011/2012 influenza season.

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What Is Known: Bosentan is a dual endothelin receptor antagonist approved for the treatment of pulmonary arterial hypertension (PAH). Since bosentan is frequently used to treat pediatric PAH patients, a pediatric formulation was developed.

Aim: To evaluate the pharmacokinetic properties of bosentan and its active metabolite, Ro 48-5033, of the quadrisected, dispersible pediatric vs.

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Background: Verorab was licensed in 1985 for both pre- and post-exposure prophylaxis of rabies. The next generation purified Vero cell rabies vaccine (PVRV-NG) is a highly purified vaccine. We performed a phase II clinical study in adults in France to assess its immunological non-inferiority and clinical safety for pre-exposure prophylaxis.

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Objective: The primary objective of the present study was to assess the potential psychostimulant effect of a single oral supratherapeutic dose of tianeptine (75 mg in 1 shot) in young healthy volunteers compared with methylphenidate (40 mg) and placebo.

Method: Eighteen healthy young male and female volunteers with no history of psychostimulant abuse completed this balanced, crossover, placebo-controlled study. Subjective and behavioral effects were assessed before treatment and 1, 2, 3, 4, and 8 hours after drug intake.

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