Clinical trials are a critical component of the drug development process. The clinical trial process is divided into several phases, each with a specific purpose and objective. This infographic will provide a visual guide to help you understand the different phases of clinical trials.

1. Understanding the
Different Phases of Clinical
Trials
1
2
3
4
5
Exploratory Studies
Efficacy Studies
Post-Marketing Studies
Safety Studies
Confirmatory Studies
Phase 0 trials are exploratory studies
that involve a small number of
participants, typically fewer than 15.
These trials are designed to test the
safety and pharmacokinetics of a new
drug or treatment.
Phase II trials involve a larger number
of participants than phase I trials,
typically several hundred. These
trials are designed to evaluate the
efficacy of the drug or treatment in
patients with the targeted condition
or disease.
Phase IV trials are conducted after
the drug has been approved for use
by regulatory agencies. These trials
are designed to monitor the long-
term safety and efficacy of the drug
in a larger population of patients.
Phase I trials are the first stage of
testing in humans. These trials involve
a small number of healthy volunteers,
typically fewer than 100.
Phase III trials are the largest and
most expensive phase of clinical
trials. These trials involve thousands
of participants and are designed to
confirm the efficacy and safety of the
drug or treatment in patients with the
targeted condition or disease.
This infographic will provide a visual guide
to help you understand the different phases
of clinical trials
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