Category: Clinical Trial Basics

Investigational drugs or devices are medical treatments that are still being studied in clinical trials. They have not yet been approved for public use by government agencies like the FDA.

Examples:

• A new cancer drug being tested for the first time
• A new type of insulin pump that needs real-world testing
• A surgical device that hasn’t been approved for use yet

These treatments are only available to people in specific trials. They are tested under close supervision, and their safety and effectiveness are still being evaluated.

Yes, you can leave a clinical trial at any time, even after giving your consent or starting the study. Participation is completely voluntary.

You might choose to leave a trial if:

• You experience side effects
• Your condition changes
• You feel uncomfortable continuing
• You simply change your mind

Leaving the trial will not affect your regular medical care or your relationship with your doctor. It’s important to tell the research team if you decide to withdraw, so they can stop study procedures and update your medical records.

These terms are common in clinical trials and are used to make sure the results are unbiased and trustworthy.

What Is a Placebo?

A placebo is a substance that looks like the real treatment but has no active ingredients. It is used to compare results fairly. For example, if a new pill is being tested, some participants may get the real medicine while others get a placebo. This helps researchers see whether the treatment actually works better than doing nothing.

It’s important to note that not all trials use a placebo. Many trials compare a new drug to an existing, standard treatment, helping to identify improvements in medical care.

What Is Randomization?

Randomization means assigning participants to different groups by chance, like flipping a coin. This helps avoid bias. For example, some people may be randomly assigned to the treatment group, while others go to the placebo or comparison group. This makes the study more fair and scientific.

What Does Blinded Mean?

In a blinded trial, participants do not know which group they are in. Sometimes even the doctors and researchers don’t know either, this is called a double-blind trial. Blinding helps prevent expectations from affecting results. It’s a way to keep the study honest.

A protocol is a detailed written plan that explains exactly how a clinical trial will be carried out. It’s like a rulebook for the entire study.

The protocol includes:

• The purpose of the trial
• Who can join (eligibility criteria)
• What will happen during the trial (visits, tests, treatments)
• How safety will be monitored
• How data will be collected and protected

Why it matters:
Protocols ensure that every participant is treated fairly, safely, and in the same way. They are reviewed and approved by ethics committees before the trial starts. Following the protocol is required by law and helps keep the research honest and reliable.

Once a clinical trial is finished, the research team takes time to review all the data collected during the study. This includes information about how well the treatment worked, what side effects were reported, and whether the goals of the trial were met.

Key steps after a trial ends:

• Data is carefully analyzed by researchers.
• The results may be shared with health agencies like the FDA or EMA.
• Findings are often published in medical journals.
• In some trials, participants may be told about the overall results.

The research site is responsible for post-trial communication and follow-up. DecenTrialz only supports pre-screening and referral. Once DecenTrialz’s role concludes with the referral, the research site assumes responsibility for all post-trial communications.

Note: DecenTrialz’s role is to help you find and pre-screen for trials. All activities during the trial are managed directly by the official research site.

Once a person joins a clinical trial, they follow a schedule of visits and activities that are described in the protocol. This may include:

• Getting the study treatment or placebo
• Undergoing lab tests, checkups, or scans
• Reporting any side effects or changes in health
• Using apps or devices to track symptoms or progress

Key Note: The research team closely monitors participants for safety. People can leave the trial at any time, for any reason. All information shared during the trial is kept private and secure under laws like HIPAA.

Before a clinical trial begins, several important steps are taken to protect participants and make sure the study is well-planned.

These steps include:

• Writing a detailed protocol (a rulebook for the study)
• Getting approval from an ethics board (called an IRB)
• Registering the trial publicly (such as on ClinicalTrials.gov)
• Choosing qualified doctors and research sites
• Setting up systems to collect data securely
• Preparing materials for participant education and informed consent

Only after these steps are complete can participant recruitment begin. At DecenTrialz, we help with pre-screening to match people with trials they may qualify for.

Clinical trials offer two kinds of value, personal and scientific.

For patients

• Some trials provide early access to new treatments that may not yet be available to the public.
• Regular checkups and monitoring during the trial can improve care.

For science and society

• Clinical trials help researchers learn what works, what doesn’t, and why.
• They lead to better treatments, earlier diagnoses, and safer healthcare.
• The data collected helps health authorities make informed decisions about public health.

Even if a treatment doesn’t work as expected, the knowledge gained can help improve future research and care.

Clinical trials can take place in many different locations, depending on the study design. These include:

• Hospitals
• Clinics
• University research centers
• Specialized trial sites
• Even a participant’s home (for decentralized trials)

Some trials are fully site-based, while others combine in-person and remote visits. No matter the location, all trials must follow strict safety and privacy regulations. Decentralized platforms like DecenTrialz make it easier for participants to join trials from wherever they are.

A decentralized clinical trial (often called a DCT) is a type of study where participants do not need to visit a hospital or research center as often. Instead, some or all parts of the trial are done from home or a nearby clinic.

These trials may use:

• Online consent forms
• Phone or video calls with doctors
• Home delivery of medication
• Local labs or home visits for tests
• Mobile apps or wearable devices to track health

Decentralized trials help people join studies more easily, especially if they live far away or have mobility issues. They can save time, reduce travel, and make research more inclusive. At DecenTrialz, we support these trials using secure, privacy-protected technology that follows all safety and ethics rules.