Table 2. The search strategy summary.

Items	Specification
Date of search	29/1/2024
Databases and other sources searched	PubMed, CNKI, ClinicalTrials.gov
Search terms used	“Telomerase”, “hTERT”, “cancer or tumor”, “immunotherapy”, “peptide vaccine”, “DNA vaccine”, “cellular therapy”, “adoptive cell transfer therapy”, etc.
Timeframe	27/9/1994–29/1/2024
Inclusion	In terms of content, we first selected the relevant review literature in the past 5 years, and then searched the relevant clinical research results according to each therapy. In languages, we read English and Chinese research literatures
Selection process	Four authors selected studies together

hTERT, human telomerase reverse transcriptase.