Clinical trial status of exosomes‐based cancer theranostics

Abstract Exosomes, are a subpopulation of extracellular vesicles, that originate from endosomes. The major role of exosomes is cellular communication (in this process exosomes display the status of the parental cell's nature, healthy or the cell suffers any pathological complication). In recent decades, research evidence highlighted that exosomes are the masterminds of cancer development and they appear as smart solutions for early diagnosis, prognosis and therapeutic (eg. stem cell, plant and immune cell‐derived exosomes) approaches. Exosomes transform the cancer liquid biopsy into a new orientation. Several biofluids (blood, plasma, serum, saliva, urine, CSF (Cerebrospinal Fluid) and cancer tissue are used for exosome‐based cancer biomarkers detection. Liquid biopsy becomes more efficient for exosomes, compared to tissue biopsy. Exosomes biocompatibility, low toxicity, and ability to cross biological membranes make it a potential tool for cancer therapeutic development. Exosome‐based cancer therapeutics introduce a cutting‐edge era of cell‐free cancer therapy. This article explores the critical role of exosomes in cancer development, progression, treatment, and clinical trials. Exosome‐based clinical trials indicate that we are close to cancer precision medicine.