Lorlatinib is a brain-penetrant, third-generation tyrosine kinase inhibitor (TKI) indicated for the treatment of anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC). In clinical trials, lorlatinib has shown durable efficacy and a manageable safety profile in treatment-naive patients and in those who have experienced progression while receiving first- and/or second-generation ALK TKIs. Lorlatinib has a distinct safety profile from other ALK TKIs, including hyperlipidemia and central nervous system effects. Clinical trial data showed that most adverse events (AEs) can be managed effectively or reversed with dose modifications (such as dose interruptions or reductions) or with concomitant medications without compromising clinical efficacy or quality of life for patients. A pragmatic approach to managing AEs related to lorlatinib is required. We present patient-focused recommendations for the evaluation and management of select AEs associated with lorlatinib developed by clinicians and nurses with extensive lorlatinib expertise in routine clinical practice. The recommendations follow the general framework of "prepare, monitor, manage, reassess" to streamline AE management and assist in practical, actionable, and personalized patient care., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Geoffrey Liu reports grant support from AstraZeneca, Boehringer Ingelheim, Pfizer, Amgen, EMD Serono and Takeda; and participation on an advisory board for AstraZeneca, EMD Serono, Jazz Pharmaceuticals, MSD, Novartis, Pfizer, Roche, BMS, Bayer, Novartis, Amgen, and Takeda. Julien Mazieres reports institutional grant support from AstraZeneca, Pierre Fabre, and Roche; and advisory board fees from AstraZeneca, BMS, Daiichi Sankyo, Merck, MSD, Novartis, Pfizer, and Roche. Jan Stratmann reports personal fees from Roche, Boehringer Ingelheim, AstraZeneca, BMS, Oncopeptides, Amgen, LEO Pharma, Novartis, Takeda, Lilly, MSD/Merck, Sanofi, Pfizer, outside of the submitted work and institutional grants from AstraZeneca outside of the submitted work. Sai-Hong Ignatius Ou reports institutional grant for clinical research from Mirati, J&J/Janssen, Pfizer, Revolution Medicine, Nuvalent, Merck, and BMS; speaker honorarium from Pfizer and J&J/Janssen; advisory honorarium from Pfizer, J&J/Janssen, AnHeart Therapeutics, Lilly, BeiGene, and DAVA Oncology; stock ownership in Turning Point Therapeutics and Elevation Oncology; and ownership (<5%) in MBrace Therapeutics and BlossomHill Therapeutics. Tony Mok reports institutional grants from AstraZeneca, BMS, G1 Therapeutics, Merck, MSD, Novartis, Pfizer, Roche, SFJ Pharmaceuticals, Takeda, and Xcovery; consulting fees from AbbVie, ACEA Pharma, Adagene, Alpha Biopharma, Amgen, Amoy Diagnostics, Bayer, BeiGene, Berry Oncology, Boehringer Ingelheim, Blueprint, BMS, Bridge Biotherapeutics, Covidien, C4 Therapeutics, Cirina, CStone Pharmaceuticals, Curio Science, D3 Bio, Da Volterra, Daiichi Sankyo, Eisai, Elevation Oncology, G1 Therapeutics, geneDecode, Gilead Sciences, Gritstone Oncology, Guardant Health, Hengrui Therapeutics, HutchMed, Ignyta, Incyte, Inivata, IQVIA, Janssen, Lilly, Lunit USA, Loxo Oncology, Lucence Health, Medscape/WebMD, Merck, MSD, Mirati, MiRXES, MoreHealth, Novartis, Omega Therapeutics, OrigiMed, OSE Immunotherapeutics, PeerVoice, Pfizer, prIME Oncology, Puma Biotechnology, Qiming Development, Roche/Genentech, Sanofi, SFJ Pharmaceuticals, Simcere of America, Synergy Research, Takeda, Tigermed, Vertex, Virtus, and Yuhan; honoraria from ACEA Pharma, Alpha Biopharma, Amgen, Amoy Diagnostics, AstraZeneca, BeiGene, Boehringer Ingelheim, BMS, Daiichi Sankyo, Daz Group, Fishawack Facilitate, InMed, Janssen, Jiahui Holdings, LiangYiHui Healthcare, Lilly, Lucence Health, MD Health Brazil, Medscape, Merck Pharmaceuticals HK, MSD, MiRXES, Novartis, OrigiMed, Permanyer, PeerVoice, Physicians’ Education Resource, Pfizer, prIME Oncology, Research to Practice, Roche Pharmaceuticals/Diagnostics/Foundation One, Sanofi-Aventis, Shanghai BeBirds Translation & Consulting, Taiho, Takeda, and Touch Independent Medical Education; travel support from AstraZeneca, BMS, Boehringer Ingelheim, Daiichi Sankyo, MiRXES, MSD, Novartis, Pfizer, and Roche; institutional travel support from BMS, Boehringer Ingelheim, MSD, Novartis, Pfizer, and Roche; participation on advisory boards for AbbVie, ACEA Pharma, Amgen, AstraZeneca, Berry Oncology, Blueprint, Boehringer Ingelheim, Bowtie Life Insurance, BMS, C4 Therapeutics, Covidien, CStone Pharmaceuticals, Curio Science, D3 Bio, Daiichi Sankyo, Eisai, Fishawack Facilitate, G1 Therapeutics, geneDecode, Gilead Sciences, Gritstone Oncology, Guardant Health, Hengrui Therapeutics, HutchMed, Ignyta, Incyte, Inivata, IQVIA, Janssen, Lakeshore Biotech, Lilly, Loxo Oncology, Lunit, Merck, MSD, Mirati, MiRXES, Novartis, OrigiMed, Pfizer, Puma Biotechnology, Roche/Genentech, Sanofi-Aventis, SFJ Pharmaceuticals, Simcere of America, Takeda, Vertex, Virtus, and Yuhan; leadership or fiduciary role at AstraZeneca, HutchMed, Lunit, ACT Genomics-Sanomics Group, and Aurora Tele-Oncology; and stock ownership in AstraZeneca, Aurora Tele-Oncology, Biolidics, HutchMed, and ACT Genomics-Sanomics Group. Mary Grizzard reports no conflicts of interest. Yasushi Goto reports grant support for the clinical trial group from AstraZeneca and Pfizer; institutional grant support from AbbVie, BMS, Daiichi Sankyo, Eli Lilly, Kyorin Pharmaceutical, Novartis, Ono Pharmaceutical, Pfizer, and Preferred Networks; honoraria from BMS, Boehringer Ingelheim, Chugai Pharmaceutical, Eli Lilly, Merck, MSD, Novartis, Ono Pharmaceutical, Pfizer, Taiho, and Thermo Fisher; participation on advisory boards for AstraZeneca, BMS, Boehringer Ingelheim, Chugai Pharmaceutical, Daiichi Sankyo, Eli Lilly, Guardant Health, Illumina, MSD, Novartis, Ono Pharmaceutical, Pfizer, and Taiho; and leadership or fiduciary role at Cancer Net Japan and Japanese Association of Medical Technologists. Enriqueta Felip reports institutional funding from Merck and Fundación Merck Salud; consulting fees from Amgen, AstraZeneca, Bayer, BMS, Daiichi Sankyo, Eli Lilly, GSK, Janssen, Merck, MSD, Novartis, Peptomyc, Pfizer, Roche, Sanofi, and Takeda; honoraria from Amgen, AstraZeneca, BMS, Eli Lilly, Janssen, Medical Trends, Medscape, Merck, MSD, PeerVoice, Pfizer, Roche, Sanofi, Takeda, and Touch Oncology; and independent board membership for Grifols. Benjamin J. Solomon reports royalties for contribution to a section from UpToDate; consulting fees for participation on advisory boards from Amgen, AstraZeneca, BMS, Janssen, MSD, Novartis, Pfizer, Sanofi, Takeda, and Roche/Genentech; honoraria from Amgen, AstraZeneca, BMS, Pfizer, Takeda, and Roche/Genentech; and leadership or fiduciary role as a board member of Thoracic Oncology Group of Australia and Cancer Council of Victoria. Todd M. Bauer reports consulting fees from Bayer, Pfizer, and Lilly; honoraria from Bayer, BMS, Guardant Health, Pfizer, and Lilly; travel support from Pfizer; participation on advisory boards for AstraZeneca, Bayer, Illumina, and Pfizer; and institutional support for participation on an advisory board for Blueprint., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)