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Related Concept Videos

Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
Preclinical Development: Overview01:28

Preclinical Development: Overview

Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
Clinically Relevant Drug Product Specifications: Methods of Establishment01:29

Clinically Relevant Drug Product Specifications: Methods of Establishment

Product specifications define the acceptable quality of a pharmaceutical product by ensuring identity, purity, potency, and strength. These specifications serve as benchmarks during development, manufacturing, and post-approval quality control. Clinically relevant specifications are particularly important because they directly relate to a drug's safety and efficacy in clinical use.Dissolution studies are critical biopharmaceutic tools that link in vitro behavior to in vivo performance. They...
Drug Administration and Therapy Phases: Overview01:26

Drug Administration and Therapy Phases: Overview

Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
The pharmaceutical phase focuses on leveraging the physicochemical properties of the drug to design and manufacture an effective product. Variants include orally administered tablets or capsules, topical creams or ointments, and parenteral-delivery solutions or emulsions.
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Exploratory clinical trials: implementation modes & guidelines, scope and regulatory framework.

Alain Francillon1, Gisèle Pickering, Chantal Belorgey

  • 1Novartis, Rueil-Malmaison, France. alain.francillon@novartis.com

Therapie
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PubMed
Summary
This summary is machine-generated.

This study defines exploratory trials for new medicines, offering recommendations for French implementation. Key findings guide non-clinical requirements, product quality, and trial conduct for early-phase drug development.

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Area of Science:

  • Pharmacology
  • Clinical Trial Design
  • Regulatory Science

Background:

  • Exploratory trials are early Phase I studies preceding dose escalation.
  • They lack therapeutic goals and do not determine maximum tolerated dose (MTD).
  • Their objective is to answer critical questions for drug development continuation.

Purpose of the Study:

  • To define exploratory trials for medicinal products.
  • To develop recommendations for implementing these trials in France.
  • To address non-clinical requirements, pharmaceutical quality, and trial conditions.

Main Methods:

  • Reviewed existing guidelines (USA, Belgium) and ICH M3 draft revision.
  • Considered five approaches (microdoses and pharmacological doses).
  • Formulated recommendations based on trial justification, utility, and prerequisites.

Main Results:

  • Exploratory trials require justification, utility, and adherence to prerequisites.
  • Pharmaceutical and non-clinical dossiers should be adapted for low doses and short durations.
  • Protocols must address dose selection, escalation, and subject withdrawal/suspension rules.

Conclusions:

  • Exploratory trials can proceed if justified, useful, and meet prerequisites.
  • Adaptations to Good Manufacturing Practices and non-clinical requirements are necessary.
  • Involvement of vulnerable populations is generally discouraged, with specific dose approaches reserved for severe/rare diseases.