题目内容

The first modern randomized, placebo controlled trial of streptomycin for tuberculosis in _______, attempted to address the bias concern by assigning treatments to patients using a random selection process.

A. 1945
B. 1948
C. 1950
D. 1954

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In Phase II trials, the new drug or treatment is given to a group of _____________ people to determine its effectiveness and to further study its safety.

A. 100–500
B. 30–300
C. 100–300
D. 200–400

In Phase III trials, the new drug or treatment is given to large groups of _________________ people to confirm its effectiveness, monitor side effects, compare it with standard or similar treatments, and collect information that will allow the new drug or treatment to be used safely.

A. 1,000–5,000
B. 1,000–3,000
C. 400–3,000
D. 600–4,000

After a drug is approved by the FDA and made available to the public, researchers track its safety in the general population, seeking more information about a drug or treatment benefits, and optimal use in Phase ____ trials.

A. II
B. III
C. IV
D. V

In Phase ____ trials, researchers test a drug or treatment in a small group of people (20–80) for the first time. The purpose is to study the drug or treatment to learn about safety and identify side effects.

A. I
B. II
C. III
D. IV