Articles on research design terms, endpoints, sample size, comparison groups, evidence levels, and how to judge whether a study's findings fit a particular claim or person. This page lists all 16 Regenerative Evidence Guide guides on the topic, each with its opening lines so you can pick the one that matches your question.
Regenerative Evidence Guide is an independent publication. These guides are for education and do not replace care from a qualified professional.
Guides in this section
How to Read a Regenerative-Medicine Study
When a friend forwards a headline about a new regenerative-medicine study, the way to read it is the same every time: check the study's design, who was actually studied, how big the effect really was, who paid for it, and what limitations the researchers admitted.
Evidence Hierarchy in Regenerative Medicine: Why One Study Is Not the Whole Answer
The evidence hierarchy ranks research by how much confidence it can support: case reports at the bottom, randomized trials higher up, and systematic reviews of many studies at the top. A single study — even a strong one — is one data point on that ladder, not a final answer.
Systematic Reviews in Regenerative Medicine: What They Can—and Cannot—Tell You
A systematic review in regenerative medicine gathers every relevant study on one question and uses a written method to judge and combine them. It shows how strong the overall evidence is — and where it's thin.
Peer Review, Preprints, and Press Releases: Reading Research Claims Carefully
Peer review, preprints, and press releases are three different stages of a research claim's life, each carrying a different level of outside scrutiny. Before trusting a regenerative-medicine finding, check which stage it's at and whether independent researchers have repeated it. Research claims sit on a ladder.
Study Endpoints Explained: What Researchers Plan to Measure
A study endpoint is the specific result a research team plans, before a study begins, to measure and report as its main finding.
Surrogate Outcomes and Patient Outcomes: Reading Regenerative-Medicine Claims Carefully
A surrogate outcome is a lab value, scan, or biomarker used as a stand-in for a real health result. A patient outcome is the change a person actually lives — less pain, more mobility, or avoiding a later procedure.
Conflicts of Interest in Regenerative-Medicine Research: What Readers Can Check
A conflict-of-interest disclosure is a short statement, usually near the end of a published study, listing financial or personal ties that could have influenced the research.
Randomization, Blinding, and Placebos: What Research Design Terms Mean
Randomization means participants are assigned to a treatment or comparison group by chance, not by choice. Blinding means participants — and often researchers — don't know which group someone is in. A placebo is an inactive look-alike given to the comparison group.
A Regenerative Study Has a Small Sample: What Precision Is Missing
A study with only a few participants mostly lacks precision. Its results give a rough estimate of what a treatment might do, with a wide range of possible true effects. It is also poorly suited to catching rare or long-term side effects. That doesn't make the study worthless.
Does This Regenerative Medicine Study Apply to Someone Like Me?
A study can be well designed, positive, and still tell you little about your own situation. That happens when the people in the study don't look like you: different age, different stage of a condition, different health history, or a different version of the product than what's being offered to you.
Regenerative Procedure Comparisons: Placebo, Standard Care, and Follow-Up
When you're researching a regenerative medicine procedure — stem cell injections, PRP (platelet-rich plasma), exosome therapy, or similar — you'll often see claims like "shown effective in clinical studies." That phrase can hide a lot.
Platelet-Rich Plasma Study Claims: Patient Group, Comparator, and Outcome
A trustworthy platelet-rich plasma (PRP) study claim should let you identify three things: the patient group actually studied, the comparator it was measured against, and the outcome used to judge results. If a claim doesn't let you identify all three, treat it as unverified until you can check the underlying study record.
A Procedure Claims Cartilage Regrowth: Which Measure Would Prove It
No single measure proves it. Stronger evidence combines several: patient-reported pain and function scores, MRI (magnetic resonance imaging) of the repair site, and sometimes tissue examined under a microscope. Strong studies also use a comparison group and follow patients long enough to show the result lasts.
A Study Protocol and a Study Result: Why the Difference Matters
A study protocol is the written plan for a clinical trial — what will be tested, on whom, and how the outcome will be measured. A study result is the outcome data reported after the trial finishes. Many regenerative-medicine claims blur the two, pointing to a registered protocol as if it already proved the treatment works.
Regenerative Trial Follow-Up Periods Vary: What Long-Term Questions Remain
There is no single "standard" follow-up length for regenerative medicine trials. Each study sets its own follow-up window separately for each outcome it measures — a safety check might close out in 30 days, while a question about whether the effect lasts (durability) may be tracked for a year or more.
Study Participants Receive Other Care Too: Reading the Co-Treatment Details
Study participants receive other care too — not just the regenerative therapy a study is testing. Most participants also get pain medication, physical therapy, other supplements, or standard treatment during the study period.