Background: The academia-industry interface is important, and, despite challenges that inevitably occur, bears the potential for positive synergies to emerge. Perceived barriers to wider collaboration in academia-industry oncology research in Europe need to be addressed, current academic cooperative group and industry models for collaboration need to be discussed, and a common terminology to facilitate understanding of both sectors' concerns needs to be established with an eye towards improving academia-industry partnerships on clinical trials for the benefit of patients with cancer., Methodology: CAREFOR (Clinical Academic Cancer Research Forum), a multi-stakeholder platform formed to improve the direction for academic clinical trials in the field of oncology in Europe, formed the CAREFOR-Industry Working Group comprised of experienced professionals from European academic cooperative groups joined by industry representatives selected based on their activities in the area of medical oncology. They jointly discussed academic cooperative groups, clinical trials conducted between academic cooperative groups and industry, examples of successful collaborative models, common legal negotiation points in clinical trial contracts, data access, and principles of interaction., Results: Four principles of interaction between the academia and industry are proposed: (1) clarify the roles and responsibilities of all partners involved in the study, (2) involve legal teams from an early stage; (3) acknowledge that data is an important output of the study, (4) agree on the intent of the trial prior to its start., Conclusions: The CAREFOR-Industry Working Group describes current models, challenges, and effective strategies for academia-industry research in Europe with an eye towards improving academia-industry partnerships on clinical trials for patients with cancer. Current perceived challenges are explained, and future opportunities/recommendations for improvement are described for the areas of most significant impact. Challenges are addressed from both the academic and industry perspectives, and principles of interaction for the optimal alignment between academia and industry in selected areas are proposed., Competing Interests: Competing interests: RAS reports: In the past two years, I have received honoraria as a consultant at advisory boards from Abbvie, Astra Zeneca, MSD, Pfizer, Regeneron, Roche and Takeda. In the past two years, I have received honoraria as a speaker from Astra Zeneca, Boehringer Ingelheim, Eli Lilly, MSD and Roche. DMC in the last two years: Genentech/Roche and Takeda Financial Support of ETOP trials (president and scientific chair): AstraZeneca, BMS, Boehringer Ingelheim, Genentech, MSD, Roche and Pfizer; FC reports personal fees from Amgen, personal fees from Astellas/Medivation, personal fees from AstraZeneca, personal fees from Celgene, personal fees from Daiichi-Sankyo, personal fees from Eisai, personal fees from GE Oncology, personal fees from Genentech, personal fees from GlaxoSmithKline, personal fees from Macrogenics, personal fees from Medscape, personal fees from Merck-Sharp, personal fees from Merus BV, personal fees from Mylan, personal fees from Mundipharma, personal fees from Novartis, personal fees from Pfizer, personal fees from Pierre-Fabre, personal fees from prIME Oncology, personal fees from Roche, personal fees from Sanofi, personal fees from Seattle Genetics, personal fees from Teva, outside the submitted work; PGC reports personal fees from Bayer, personal fees from Deciphera, personal fees from Eisai, personal fees from Eli Lilly, personal fees from Nektar Ther, personal fees from Pfizer, grants from Advenchen Lab, grants from Amgen Dompé, grants from AROG, grants from Bayer, grants from Bluerint, grants from Daiichi Sankyo, grants from Deciphera, grants from Eisai, grants from Eli Lilly, grants from Epizyme, grants from Glaxo, grants from Karyopharm, grants from Novartis, grants from Pfizer, grants from PharmaMar, outside the submitted work; RM reports personal fees from Pfizer, outside the submitted work; AH reports grants and non-financial support from Abbott Molecular Inc, grants from Amgen (Europe) GmbH, grants and non-financial support from Amgen Inc, grants and non-financial support from Amgen Ltd, grants and non-financial support from AstraZeneca AG Switzerland, grants and non-financial support from AstraZeneca UK Ltd, grants from AstraZeneca Wilmington, grants and non-financial support from Biodesix Inc, grants and non-financial support from Boehringer Ingelheim RCV GmbH & Co. KG, grants from Boehringer Ingelheim (Schweiz) GmbH, grants from Bristol-Myers Squibb Company, grants and non-financial support from Bristol-Myers Squibb International Corporation, grants and non-financial support from Eli Lilly Export SA, grants from Eli Lilly Regional Operations GmbH, grants and non-financial support from F. Hoffmann-La Roche Ltd, grants and non-financial support from Genentech Inc, grants from Merck KGaA, grants and non-financial support from MSD MERCK SHARP & DOHME AG, grants from Pfizer Inc, grants from Pfizer Pharma GmbH, grants from Takeda, outside the submitted work., (© Author (s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. Published by BMJ on behalf of the European Society for Medical Oncology.)