A systematic review of ethnomedicinal uses and preclinical pharmacology in a plant genus, lacking clinical trial data and relying on fragmented in vitro and animal studies, with the authors themselves concluding that clinical studies are required.
In vitro and computational study of natural compounds against oral pathogens; no clinical outcomes, no quantified inhibition data, and explicit call for in vivo validation limits this to exploratory mechanistic work.
A scoping review mapping the landscape of non-pharmacological interventions without quality assessment, effect synthesis, or meta-analysis; descriptive and gap-identifying rather than outcome-determining.
A systematic review of 24 studies in 2409 cancer patients reporting heterogeneous but predominantly positive results for ginger in reducing chemotherapy-induced nausea, vomiting, and other treatment side effects, though with acknowledged methodological limitations.
In vitro mechanistic study of a biosynthesized nanoparticle platform in cancer cells; demonstrates proof-of-concept but lacks in vivo validation, clinical endpoints, or comparison to standard-of-care therapy.
A prospective observational cohort study identifying barriers to acupuncture completion in cancer patients; lacks a control arm, reports surrogate endpoints (patient-reported outcomes), and is descriptive rather than interventional, making it hypothesis-generating for health equity rather than practice-changing.