We do something similar - if it’s a paper document, I think that a stamp saying “no change” could be used if there is also a name, job title, signature and date which would show the review has been done. Reviewing a document every so often makes sense, but it doensn’t have to change
Its o k to put the stamp of “No change” etc.Now a days its a problem often asked by regulatory auditors. My suggestion is that clearly mention in SOP for SOP that once SOP has been prepared do not mention review date ,whenever review is required it can be changed through procedure otherwise there is no need to open the option for periodic review ,if there is chnge we have to chnge it immediately why we have to wait for review date