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How are new medicines developed? Let's learn about medical studies!

MBBS
Medically Reviewed by MBBS ✓ Medically Reviewed
📅 Updated: Jul 14, 2026 • ⏱ 6 min read • Editorial policy
How are new medicines developed? Let's learn about medical studies!
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Have you ever taken a medicine? Or undergone surgery? If so, did you know that the treatment you received was tested in medical research to ensure its safety and quality before it reached your hands? Today we are talking about this important journey that brings new medicines and treatments to us. Simply put, we are talking about medical studies .

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What is a medical study?

Simply put, medical research is the process of testing new drugs, surgical procedures, or medical devices on groups of people. These trials are what allow researchers to learn exactly whether a new treatment is safe and whether it actually works .

These can be divided into two main types.

1. Clinical Trials

This is where a new drug, device, or treatment is compared with something that already exists. Imagine you've discovered a new diabetes drug. Here's how you test it:

  • With the best current treatment: The new drug is being compared with the best current diabetes treatment.
  • With a placebo: This is very important. A placebo'' is something that looks like medicine, but does not actually contain any active pharmaceutical ingredient. Sometimes, just thinking that it will make you feel better can make you feel a little better. So this is used to find out if the new medicine really works or if it's just a psychological effect that makes you feel better.
  • No treatment: In some cases, comparisons are made with a group that does not receive any treatment.

Researchers divide participants into two groups. One group is given the new treatment. The other group is given the existing treatment or a placebo''. Then they compare the results of these two groups.

2. Observational Studies

This involves observing what happens to people when they follow a certain treatment or lifestyle. For example, studying the difference in health between people who exercise regularly and those who don't.

Who comes up with these research ideas? Who provides the money?

Typically, the idea for this type of medical research comes from a researcher at a hospital, university medical center, or pharmaceutical company. The researcher then designs the study to answer certain questions. For example, “Is this drug better than existing drugs?” “Will it cause side effects ?”

Research like this can cost millions of dollars. That money comes from:

  • From companies that make drugs or medical devices.
  • From university medical centers.
  • From non-profit organizations like the Alzheimer 's Association or the American Cancer Society.
  • From government agencies like the National Institutes of Health.

Who makes these? Where are they made?

Every research project is led by a Principal Investigator . Often, that person is a doctor. He or she is assisted by a large research team. That team includes:

  • Doctors
  • Nurses
  • Social workers
  • Dietitians
  • Medical students
  • Other health professionals are included.

This research is conducted in hospitals, university research centers, community clinics, and doctors' offices. Sometimes, the research even pays for airfare, transportation, and hotel expenses for people who live far away from the research center.

Who participates in the research? What are the stages of this?

It's made up of people just like you. People of all ages, races, and genders are included. Some people join because other treatments they've tried haven't worked. Others join because there's no cure for their disease yet.

It is very important that before a new treatment is given to people, it is first tested in laboratory animals to see if it can cause any harm. Only treatments that show good safety are then transferred to clinical trials in humans.

There are four main phases of medical research. The number of participants increases with each phase.

Phase Description
Phase IAbout 20-80 people participate. The main goal is to find out if the treatment is safe and what the correct dose is.
Phase II About 100-300 people participate. This phase is to see how well this treatment works for a particular condition.
Phase III Hundreds to thousands of people participate. They look at how the treatment works in different groups of people, at different doses. If the results of this phase are successful, the treatment will be approved by agencies such as the US Food and Drug Administration (FDA).
Phase IV This is done after the treatment has been approved. The purpose is to monitor its long-term safety .

What are the characteristics of good, reliable medical research?

Before your doctor prescribes a new medicine, he or she reads medical research reports like these to find out if it works and is safe. They also show what side effects a treatment may cause. So your doctor can pay attention to your symptoms.

So, here are some characteristics of high-quality, reliable research:

  • Regulatory approval: New drugs, vaccines, and medical devices must be approved by an agency like the FDA in the United States. These agencies have strict rules to protect people participating in research.
  • Independent review: The research is regularly reviewed by a team of doctors or scientists who are not involved in the research. They ensure that it is safe for participants throughout the process.
  • Informed Consent : It is essential that informed consent is obtained from everyone participating in the research. This means that before someone signs up to participate, they must be clearly explained all the benefits, disadvantages, and risks involved, and given all the information they need to make an informed decision.

💡 Take-Home Message

  • Every medicine and treatment you use has undergone medical research to ensure its safety and effectiveness before it reaches your hands.
  • These studies take years, and there are strict rules and steps to ensure the safety of participants.
  • Participating in research is completely voluntary, and your safety is constantly monitored by independent committees.
  • When your doctor prescribes a new medication, that decision is based on evidence from high-quality research like this.
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⚠️ Important: Medical articles and information on Nirogi Lanka are strictly for educational and awareness purposes and do not substitute professional medical advice, diagnosis, or treatment. Always consult a qualified physician for any medical concerns.