See the DrugPatentWatch profile for polivy

Based on the information available, I found that Polivy (polatuzumab vedotin-piiq) trials involved adult patients. The drug is indicated for the treatment of adult patients with diffuse large B-cell lymphoma (DLBCL) [1]. The clinical trials for Polivy, such as the GO29365 study, included adult patients with relapsed or refractory DLBCL [2]. However, I couldn't find specific age ranges or boundaries for the participants in these trials.

For more detailed information about the age distribution of participants in the clinical trials, it would be best to consult the original clinical trial documentation or contact the manufacturer directly.

Sources:
[1] <https://www.fda.gov/drugs/resources-information-approved-drugs/fda-approves-new-treatment-diffuse-large-b-cell-lymphoma>
[2] <https://clinicaltrials.gov/ct2/show/NCT02257567>