Field guide · Clinical trials · Volume 1
Clinical trials, decoded.
A plain-language guide to how clinical trials work: the phases, the paperwork, and the questions worth asking. Free, informational, and written by people who are not selling you anything.
- Chapters
- 7
- Reading time
- ~12 min
- Cost
- Free
- Quotes / sharing
- None
What a clinical trial is
A clinical trial is a research study in which volunteers help answer one defined question about health, following a written plan.
That could be whether a new medicine works better than today’s, whether a screening test is accurate, or whether a counseling program helps people sleep. Because many people are measured the same way, researchers can tell whether a difference is real or just chance.
Research, not routine care. Taking part is always voluntary, and so is stopping.
How to read a study listing
Public registries such as ClinicalTrials.gov describe every study in a similar format. Here is a made-up listing, with the five things worth reading first.
- 1 Plain title: what is being studied
- 2 Is the study taking new people?
- 3 Stage of testing (or N/A)
- 4 Eligibility: who can take part
- 5 Travel and time
How a study moves, start to finish
Study teams run every step below. Clintivo just explains the map.
- 1
Find
People read public listings and talk with their own doctor about what might apply.
- 2
Screen
The study team checks eligibility with questions, tests, and sometimes a visit.
- 3
Consent
You get the full explanation and time to think. Saying no is always allowed.
- 4
Take part
Visits, tests, and sometimes a treatment, all following the written plan.
- 5
Wrap up
Final visits and follow-up. Many teams share results when they are public.
Jargon, translated
Six words you will keep seeing.
- Protocol
- The written plan for the study. Everyone follows the same one.
- Placebo
- A look-alike with no active ingredient, used so results can be compared fairly.
- Randomized
- Groups are assigned by chance, like a coin flip, to keep comparisons fair.
- Blinded
- You (and sometimes the team) are not told which group you are in until the end.
- Inclusion criteria
- The checklist of things a person needs in order to take part.
- Adverse event
- Any unwanted medical event during a study, whether or not the treatment caused it.
What we do, and what we never do
We explain. We do not enroll. Clintivo never recruits for a study, signs anyone up, or refers you to one.
No quotes, no sales. There is nothing to buy and nobody will call you with an offer.
No partner sharing. Your details do not go to study sponsors, research sites, or anyone else for marketing.
Your choices stay yours. Text updates are optional, separate, and unchecked by default. Reply STOP any time.
Where to read next
Five short guides. Read in any order.
Quick answers
Is Clintivo a clinical trial or a research site?
No. Clintivo is an information website. We do not run studies, enroll participants, or give medical advice.
Does it cost anything?
No. Reading the guides is free and joining our optional email or text updates is free. Message and data rates from your carrier may apply to texts.
Will you share my details with a study?
No. We do not share your details with study sponsors, research sites, recruiters, or other partners.
End of guide · Next step
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