Browse health and science claims by evidence strength.

C Cancer Randomised trial

Evidence check: New ovarian cancer drug gives women more time and better quality of life - BBC News

Claims are based on trial summary data, patient/clinician testimony, and regulatory approval, but without peer-reviewed publication link or full sharing of side-effect profile, so should be viewed as promising but pending further independent verification.

Preliminary clinical benefit Randomised human evidence Potentially actionable with caution

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C Dementia Animal studies

Evidence check: Your nose could detect Alzheimer’s years before symptoms begin

The research offers scientific insight into early immune changes and olfactory loss in Alzheimer’s, but the article’s diagnostic and therapeutic framing exceeds the current clinical evidence.

Over-framed Limited human evidence Clinically actionable

Open report

C Cancer Randomised trial

Evidence check: A personalized vaccine for melanoma cut the risk of cancer returning after five years

While initial trial results for the melanoma vaccine are promising, claims outpace the available peer-reviewed evidence and longer-term follow-up.

Early-stage only Limited human evidence Not clinically actionable

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C Dementia Observational

Evidence check: Blood and spinal fluid proteins reveal distinct fingerprints of four brain diseases

This is a robust molecular profiling study in humans, but proposed diagnostic and therapeutic applications are not yet validated, making clinical conclusions premature.

Early-stage only Limited human evidence Hypothesis-generating only

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C Dementia Observational

Evidence check: Cycling Linked to Lower Risk of Dementia, Study of Half a Million Finds

The study shows an association between cycling and lower dementia risk, but is observational and does not establish that cycling prevents dementia; results could be affected by confounding factors.

Early-stage only Observational human evidence

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D Dementia Animal studies

Evidence check: Scientists Discover Brain Pathway That May Slow Parkinson’s Disease – but Only in Women

The article describes preliminary findings from mouse models that cannot yet be applied to humans or guide clinical care.

Animal/lab only No human evidence Hypothesis-generating only

Open report

D Dementia Animal studies

Evidence check: Scientists found a hidden Alzheimer’s trigger and shut it down

The research shows that targeting IDOL reduced amyloid plaques and improved certain neuronal features in animals, but there is no evidence yet for clinical effectiveness or safety in humans.

Preclinical only No human evidence

Open report

C Cancer Observational

Evidence check: Early-Onset Colorectal Cancer Risk Factors Identified

These conference-presented studies provide plausible but non-causal evidence from observational human data linking several risk factors—including obesity, family history, metabolic/hematologic markers, and oral antibiotic exposure—to early-onset colorectal cancer or adenomas; however, the findings are not sufficient to change clinical guidance without peer-reviewed publication and further validation.

Preliminary & Observational

Open report

C Screening diagnostics Animal studies

Evidence check: Why some brain cells are particularly vulnerable to multiple sclerosis

The Science News article closely reflects the findings of recent peer-reviewed research linking DNA repair deficits in CUX2 neurons to progression of MS, but the evidence is primarily from mouse models and comparative human tissue studies, not clinical trials or interventions. The clinical actionability for patients or providers is currently nil, while the potential for future targeting remains hypothetical.

Early-stage only Limited human evidence

17 May 2026 Open report