Clinical Trials · Pharmacology

In the context of drug development, what is a 'Lead Compound'?

  1. The final drug product that is marketed
  2. A chemical that shows promise in binding to a target during preclinical screening
  3. A toxic contaminant found in manufacturing
  4. The drug used as a positive control in Phase III
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Correct answer: A chemical that shows promise in binding to a target during preclinical screening

A lead compound is a molecule that exhibits the desired pharmacological activity during early discovery. It is then chemically modified to optimize its potency, selectivity, and pharmacokinetic properties.

Difficulty: Medium Question 13 of 20

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