Correction to: Nature Reviews Clinical Oncology https://doi.org/10.1038/s41571-022-00620-6, published online 30 March 2022.

In the original version of this Review, ref. 177 was a study that does not apply to a discussion of CLEVER-1. The relevant study is: Virtakoivu, R. et al. Systemic blockade of Clever-1 elicits lymphocyte activation alongside checkpoint molecule downregulation in patients with solid tumors: results from a phase I/II clinical trial. Clin. Cancer Res. 27, 4205–4220 (2021). Ref. 177 has been corrected in the HTML and PDF versions of the article.