{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T03:04:15Z","timestamp":1789700655415,"version":"4.0.1"},"reference-count":32,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["ascpt.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["CPT Pharmacom &amp; Syst Pharma"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Accurate physiologically based pharmacokinetic (PBPK) simulation of drug\u2013drug interaction (DDI) potential requires estimation of the relative contribution of the impacted pathway. While fraction metabolized by CYP enzymes is usually estimated using dedicated clinical DDI studies with strong CYP inhibitors, this approach might not be available in some situations. In the case of the menin inhibitor, ziftomenib, a dedicated DDI study in healthy subjects was infeasible due to the potential for toxicity associated with the mechanism of action, so an alternate approach was used. AML patients are typically immuno\u2010compromised and hence are at a high risk of fungal infections. For this reason, co\u2010administration of azole antifungals (moderate and strong CYP3A4 inhibitors) was permitted in Clinical Study KO\u2010MEN\u2010001. The PK data obtained in the presence or absence of CYP3A4 inhibitors was used to refine the estimate of ziftomenib fm\n                    <jats:sub>CYP3A4<\/jats:sub>\n                    to 60%\u201370%. Once refined, the model was applied to predict the victim DDI liability of ziftomenib in the presence of CYP3A4 inhibitors and inducers. Moderate or weak interaction (2.6\u2010fold and 1.4\u2010fold increase in AUC) was predicted with itraconazole and isavuconazole, respectively. Approximately 80% reduction in ziftomenib AUC was predicted with rifampicin. Ziftomenib was predicted to be a weak CYP3A4 inhibitor, causing a 1.9\u2010fold increase in midazolam exposure. In the absence of data from dedicated DDI clinical trials, these results were used to support regulatory interactions with the US FDA regarding concomitant administration of ziftomenib with other medications such as CYP3A4 modulators. These modeling results ultimately supported a range of DDI language in ziftomenib label.\n                  <\/jats:p>","DOI":"10.1002\/psp4.70327","type":"journal-article","created":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T07:59:30Z","timestamp":1788335970000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Practical Alternative to Refine the Estimate of\n                    <scp>fmCYP3A4<\/scp>\n                    and Evaluate Drug\u2013Drug Interaction Potential for Ziftomenib Using\n                    <scp>PBPK<\/scp>\n                    Modeling to Inform Labeling"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3151-4294","authenticated-orcid":false,"given":"Ian E.","family":"Templeton","sequence":"first","affiliation":[{"name":"PBPK Consultancy, Simcyp Division Certara UK Ltd  Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2505-9992","authenticated-orcid":false,"given":"Chara","family":"Litou","sequence":"additional","affiliation":[{"name":"PBPK Consultancy, Simcyp Division Certara UK Ltd  Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hannah M.","family":"Jones","sequence":"additional","affiliation":[{"name":"PBPK Consultancy, Simcyp Division Certara UK Ltd  Sheffield UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julie Mackey","family":"Ahsan","sequence":"additional","affiliation":[{"name":"Kura Oncology, Inc.  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marilyn","family":"Tabachri","sequence":"additional","affiliation":[{"name":"Kura Oncology, Inc.  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mollie","family":"Leoni","sequence":"additional","affiliation":[{"name":"Kura Oncology, Inc.  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3307-0336","authenticated-orcid":false,"given":"Amitava","family":"Mitra","sequence":"additional","affiliation":[{"name":"Kura Oncology, Inc.  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