A Systematic Database Approach to Identify Companion Diagnostic Testing in Clinical Trials under the New In Vitro Diagnostic Medical Devices Regulation.

The European Union In Vitro Diagnostic Medical Devices Regulation (EU) 2017/746 (IVDR) introduces companion diagnostics (CDx) as a new legal term. CDx are applied in combination with a medicinal product to identify patient subgroups most likely to benefit from a treatment or who are at increased risk. This new regulation came into full effect on 26 May 2022 and represents the current development in personalized medicine.

[Main characteristics of the new authorisation procedure for clinical trials with medicinal products according to regulation (EU) no 536/2014 and the cooperation between the member states].

With Regulation (EU) No. 536/2014 on clinical trials on medicinal products for human use, which became applicable on 31 January 2022, full harmonisation of the authorisation and monitoring procedures of clinical trials with medicinal products in the European Union (EU) and the European Economic Area (EEA) has been achieved. In addition to an entirely paperless application procedure, communication between all parties involved is done through the Clinical Trials Information System (CTIS), which was developed specifically for the Regulation and through which all non-proprietary information and content of the clinical trial application and results are also made available to the public.

Master protocols in clinical trials: a universal Swiss Army knife?

Master protocols combine several sub-trials, each with their own research objectives, which is usually presented as one single clinical trial application. Master protocols have become increasingly popular in oncology and haematology, as either basket, umbrella, or platform trials. Although master protocols are intended to accelerate drug development and to reduce futility, their use poses challenges to ethics committees, patients, study investigators, and competent authorities during the review and authorisation process of a clinical trial application.

[Ethics committees in clinical trials involving medicinal products].

Over the years, the role of ethics committees (ECs) in the review process of clinical trial applications (CTAs) has changed from being a collegial advisory body to a patient protection organisation with an authority character. While the law governing the medical profession in Germany only provides for an obligation for physicians to ask for an EC review in biomedical research on human beings, a negative opinion on the CTA does not lead to the inadmissibility of the research project from a legal point of view. In contrast, the German Medicinal Product Act (Arzneimittelgesetz, AMG) requires a favourable opinion as an approving assessment by the competent EC.

Analysis of integrated clinical trial protocols in early phases of medicinal product development.

Purpose: While in the past, most clinical trial applications (CTAs) following non-integrated (standard) protocols were used to investigate one primary objective concerning a (new) drug, nowadays, the use of integrated protocols investigating multiple objectives within the same CTA becomes more and more popular. The aims of the present study were to investigate the usage and the impact of integrated protocols on regulatory activities and to find the motivation for their increasing use.

Methods: Two thousand nine hundred sixty-nine phase I and I/II CTAs submitted to the German Federal Institute for Drugs and Medical Devices (BfArM) during the time period from August 1, 2004, until August 31, 2014, were analysed with regard to protocol and sponsor status, duration until initial authorisation and the number of substantial amendments and their respective approval times.

[Joint pilot project of the German higher federal authorities and ethics committees on implementing the EU Regulation on clinical trials].

Background: The European Clinical Trials Regulation 536/2014 and the corresponding national legal transitions will require close cooperation between the federal higher authorities and ethics committees in the assessment of clinical trial applications involving medicinal products in humans. In preparation for this, a pilot project was launched to simulate the future processes of the regulation in line with current legal requirements and in order to give applicants, authorities and ethics committees the opportunity to familiarise themselves with the new procedures.

Objectives: The aim of this paper is to examine all pilot project procedures of the first year since starting the pilot project at the end of 2015.

[Changes in the German Medicinal Product Act imposed by the EU regulation on clinical trials].

The entry into force of Regulation (EU) No. 536/2014 of the European Parliament, the Council of 16 April 2014 for clinical trials on medicinal products for human use, and repealing Directive 2001/20/EC necessitated amendments to the national legislation on medicinal products. These changes mainly concern the sixth chapter of the German Medicinal Products Act (Arzneimittelgesetz, AMG) and the elimination of the GCP (good clinical practice) ordinance for clinical trials that will be covered by the regulation in the future.

Who is a 'healthy subject'?-consensus results on pivotal eligibility criteria for clinical trials.

Introduction/methods: A discussion forum was hosted by the German not-for-profit Association for Applied Human Pharmacology (AGAH e.V.) to critically review key eligibility criteria and stopping rules for clinical trials with healthy subjects, enrolling stakeholders from the pharmaceutical industry, contract research organisations, academia, ethics committees and competent authority.

[Improving drug licensing for children and adolescents : Position paper from the More Medicines for Minors Symposion 8 June 2015 in Bonn].

In Germany and throughout Europe, medicinal products for adults have been developed and evaluated systematically for decades. Medicinal products for children and adolescents, however, have only been researched for the past ten years. As a result, many medicinal products have been administered to children without systematic clinical trials, for example regarding dosage or pharmaceutical form.

The value of surrogate markers to monitor cholesterol absorption, synthesis and bioconversion to bile acids under lipid lowering therapies.

Introduction: Regulation of cholesterol (Chol) homeostasis is controlled by three main fluxes, i.e. intestinal absorption, de novo synthesis (ChS) and catabolism, predominantly as bile acid synthesis (BAS).

[Interplay between marketing authorization and early benefit assessment of drugs].

The early benefit assessment of newly approved drugs with new active substances or new applications that came into force on 1 January 2011 still presents a challenge to the parties involved. This article highlights the interplay between drug marketing approval and early benefit assessment. The constellation of a European, and even an international, largely harmonized, drug authorization process, with a mostly nationally regulated drug reimbursement situation causes inevitably friction, which could be reduced through joint advice discussions during the planning phase for pivotal studies.

A 1-year cross-sectional analysis of non-interventional post-marketing study protocols submitted to the German Federal Institute for Drugs and Medical Devices (BfArM).

Purpose: The aim of non-interventional studies (NIS) with medicinal products is to investigate the use of authorized medicinal products in daily routine. In the past, this type of study has been subject to frequent criticism, and many recommendations have been published. The aim of our study was to assess the quality of NIS study protocols.

Lifibrol as a model compound for a novel lipid-lowering mechanism of action.

Lifibrol is a potent lipid-lowering drug with an unknown mechanism of action. We investigated its effects on lipoprotein and sterol metabolism in normocholesterolemic male participants. Seven participants were treated for 4 weeks with 600 mg/d lifibrol and 9 with 40 mg/d pravastatin in a double-blind randomized parallel-group trial.

Influence of simvastatin on apoB-100 secretion in non-obese subjects with mild hypercholesterolemia.

Statins decrease apoB-100-containing lipoproteins by increasing their fractional catabolic rates through LDL receptor-mediated uptake. Their influence on hepatic secretion of these lipoproteins is controversial. The objective of the study was to examine the influence of simvastatin on the secretion of apoB-100-containing lipoproteins in fasting non-obese subjects.

Changes in cholesterol absorption and cholesterol synthesis caused by ezetimibe and/or simvastatin in men.

This study evaluates changes in cholesterol balance in hypercholesterolemic subjects following treatment with an inhibitor of cholesterol absorption or cholesterol synthesis or coadministration of both agents. This was a randomized, double blind, placebo-controlled, four-period crossover study to evaluate the effects of coadministering 10 mg ezetimibe with 20 mg simvastatin (ezetimibe/simvastatin) on cholesterol absorption and synthesis relative to either drug alone or placebo in 41 subjects. Each treatment period lasted 7 weeks.

[Compassionate use of non-approved medicinal products. Legal basis and guidelines].

The inclusion of compassionate use in the 14th amendment to the German Medicines Act offers the possibility to treat patients with not yet licensed medicinal products outside of clinical trials. The prerequisite for compassionate use is that a marketing authorisation application has been submitted for the medicinal product or that clinical trials with the medicinal product are still ongoing. Additionally, the medicinal product shall be administered only to patients suffering from a seriously debilitating disease or whose disease is life-threatening, and who can not be treated satisfactorily with a licensed medicinal product.

Nevirapine pharmacokinetics in HIV-infected and HIV/HCV-coinfected individuals.

Objectives: An increased risk of drug-related liver injury has been repeatedly reported in individuals infected with hepatitis C virus (HCV) receiving the antiretroviral drug nevirapine. This study was undertaken to assess the differences in the pharmacokinetics of nevirapine between patients with HIV/HCV coinfection and HIV infection that could explain higher rates of hepatotoxicity.

Methods: A 12 h pharmacokinetic analysis was performed in 18 patients: 7 HIV/HCV-coinfected and 11 HIV-monoinfected.

Vascular effects of diet supplementation with plant sterols.

Objectives: The purpose of this study was to evaluate vascular effects of diet supplementation with plant sterol esters (PSE).

Background: Plant sterol esters are used as food supplements to reduce cholesterol levels. Their effects on endothelial function, stroke, or atherogenesis are not known.

Degradation of 24S-hydroxycholesterol in men is not regulated by CYP7A1.

Objective: The conversion of cholesterol into bile acids occurs via a long cascade of enzymatically regulated oxidative processes. Our aim was to examine if an up-regulation of hepatic cholesterol 7alpha-hydroxylase (CYP7A1) in humans by cholestyramine, a bile acid-binding resin, has an effect on the degradation of brain-specific 24S-hydroxycholesterol.

Patients And Methods: Six normocholesterolemic male volunteers received 4 g cholestyramine b.