Abstract:
Objective: To observe the efficacy and safety of the pulsed low dose rate scheme (PLDR) in the treatment of relapsed cancer. Methods: The clinical record of four patients with replased cancer treated with PLDR scheme were analyzed. Their short-term efficacy according to the RECIST 1.0 standard and the related adverse reactions were evaluated, and the relevant literature was reviewed. Results: All the four patients successfully accepted the whole treatment, 2 patients reached PR and 1 patient reached CR. And mild adverse reactions were tolerated. Conclusion: PLDR scheme in the treatment of relapsed cancer is effective, and the adverse effects are tolerated. Multi-center large sample studies should be implemented in order to promote the scheme.