Which statement correctly differentiates intent-to-treat (ITT) from per-protocol (PP) analysis?

Over the course of a long-term study, several small amendments are made: additional questionnaires, extra lab draws, and slightly longer visit durations. Individually, these changes are minor. How the study team handle informed consent?

During a Phase II clinical trial, the sponsor proposes minor amendments to the protocol, such as additional blood draws and questionnaire assessments, which are considered low risk. The investigator wonders whether updated consent is necessary. Which statement best reflects the regulatory and ethical requirements regarding informed consent?

What is the overriding principle in the conduct of any clinical trial?

A clinical trial participant experiences a serious adverse event (SAE). What is the sponsor’s PRIMARY obligation?

Which of the following is NOT a potential source of monopoly power?

You are a monopolist with two different factories. Each factory has a different cost structure, and their marginal costs are: , and . The market’s inverse demand curve is:

All firms operating in a competitive market have cost functions:

The sales in this market, from largest to smallest firm, are: $10, $5, $2, $2, $1. What is the industry’s four-firm concentration ratio?

Consider two firms, where one firm produces books, and another firm produces paper. If these firms were to merge, what type of merge would this be?