2025 Oncology Conferences |
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The second half of 2025 will feature a series of important oncology meetings where new clinical data will be presented across tumor types. From hematologic malignancies to solid tumors, these conferences will provide updates that may influence treatment guidelines, inform evolving standards of care, and guide future research directions. For clinicians, researchers, and industry leaders, they offer opportunities to engage with emerging science and assess its impact on clinical practice.
Below are the key oncology conferences to watch in quarter 3 and quarter 4 of 2025.
Society of Hematologic Oncology (SOHO)
Dates: September 3 to 6, 2025
Location: George R. Brown Convention Center, Houston, Texas
The SOHO Annual Meeting continues to serve as a leading forum for hematologic oncology specialists. SOHO 2025 is expected to draw more than 3,800 participants for a 3.5-day program featuring sessions ranging from plenary lectures to interactive discussions. Centered on the theme “Unleashing AI, Genomics, Targets, and Immune Engineering,” the meeting will provide updates on leukemias, lymphomas, myeloma, myelodysplastic and myeloproliferative neoplasms, and cellular therapies.
IASLC World Conference on Lung Cancer
Dates: September 6 to 9, 2025
Location: Barcelona, Spain
The IASLC World Conference on Lung Cancer remains the premier global meeting dedicated to thoracic malignancies. In 2025, Barcelona will host thousands of oncologists, surgeons, radiologists, and scientists to discuss advances in lung cancer biology, diagnostics, and therapeutics. The program will feature world-renowned speakers, discussants, and panelists who will deliver insights into practice-changing therapies and evolving standards of care. Attendees can expect cutting-edge updates spanning lung cancer biology, diagnostics, and therapeutics, with key highlights anticipated in targeted therapy resistance mechanisms, next-generation immunotherapies, and the integration of molecular diagnostics in early-stage disease management.
International Myeloma Society (IMS) Annual Meeting
Dates: September 17 to 20, 2025
Location: Toronto, Canada
IMS 2025 will bring together the international myeloma research community to share cutting-edge advances in disease biology, translational research, and clinical care. This year’s meeting will feature thematic sessions on precursor disease, risk-adapted management, immunotherapy, and relapse within 1 to 3 lines of therapy, alongside keynote lectures, meet-the-expert discussions, and joint sessions with regulatory agencies. The program will also highlight oral abstracts, poster presentations, and symposia led by key opinion leaders. Scientific highlights are expected in CAR T-cell therapies, bispecific antibodies, next-generation immunotherapies, and updates on minimal residual disease assessment, risk stratification, and strategies for relapsed/refractory disease.
American Society for Radiation Oncology (ASTRO) Annual Meeting
Dates: September 27 to October 1, 2025
Location: San Francisco, California
The ASTRO Annual Meeting is the largest gathering of radiation oncologists worldwide and a cornerstone of the oncology conference calendar. The 67th annual meeting will be held in San Francisco with the theme “Rediscovering Radiation Medicine and Exploring New Indications.” Attendees will hear from experts, including ASTRO president Sameer Keole, MD, FASTRO, on the future of the field and updates shaping clinical practice. Program highlights will feature advances in precision radiation delivery, artificial intelligence integration, and the expanding role of radiation therapy in combination with systemic treatments.
National Comprehensive Cancer Network (NCCN) Annual Congress: Hematologic Malignancies
Dates: October 10 to 11, 2025
Location: San Diego, California
The NCCN Annual Congress on Hematologic Malignancies is known for its practice-focused approach, offering guideline-based updates that clinicians can immediately apply in their clinics. The 2025 program will review evolving strategies for lymphoma, leukemia, and multiple myeloma, with faculty emphasizing the latest NCCN Guideline changes, clinical controversies, and case-based learning.
ESMO Congress
Dates: October 17 to 21, 2025
Location: Berlin, Germany
The ESMO Congress is among the largest and most influential global oncology meetings on the calendar. This year’s congress in Berlin is expected to set the stage for new standards in solid tumor management. The program will highlight practice-changing data, foster multidisciplinary debate, and stimulate exchange in translational science. Learning objectives include updates on prevention, screening, early diagnosis, and breakthroughs across basic, translational, and clinical research. Attendees can expect late-breaking trials, presidential symposia, and key insights in immuno-oncology, targeted therapies, and tumor-agnostic approaches, alongside critical discussions on access, equity, and sustainability in global cancer care.
Society for Immunotherapy of Cancer (SITC) Annual Meeting
Dates: November 5 to 9, 2025
Location: National Harbor, Maryland
SITC will celebrate its 40th annual meeting in 2025, marking the largest global gathering dedicated to cancer immunotherapy. The event will unite leaders from academia, government, regulatory agencies, and industry for unparalleled education, networking, and scientific exchange. Program highlights will include the latest developments on cellular therapies, and innovative combination regimens, along with early-phase data across tumor types. SITC 2025 will also focus on biomarker development, resistance mechanisms, and strategies to expand access to immunotherapy across tumor types.
Society for Neuro-Oncology (SNO) Annual Meeting
Dates: November 19 to 23, 2025
Location: Honolulu, Hawaii
The SNO Annual Meeting serves as the leading multidisciplinary forum for advances in neuro-oncology, bringing together neurosurgeons, neuro-oncologists, radiation oncologists, and basic scientists. The 2025 meeting in Honolulu will highlight novel strategies for gliomas, brain metastases, and rare central nervous system tumors, as well as innovations in imaging and biomarkers. SNO 2025 will also emphasize the value of translational research aimed at improving outcomes in central nervous system malignancies, an area of critical unmet need.
67th ASH Annual Meeting
Dates: December 6 to 9, 2025
Location: Orlando, Florida
The ASH Annual Meeting is the premier global event in classical and malignant hematology, drawing more than 30,000 attendees, 5,000 abstracts, and 275 exhibitors each year. In 2025, the meeting will convene in Orlando to showcase advances in leukemias, lymphomas, myeloma, coagulation disorders, and gene therapy.
48th Annual San Antonio Breast Cancer Symposium (SABCS)
Dates: December 9 to 12, 2025
Location: San Antonio, Texas
SABCS will mark its 48th year in 2025, bringing more than 10,000 attendees from 102 countries and nearly 2,000 abstracts together over 4 days. The program will feature expert lectures, slide and poster presentations, and case-based forums covering the latest advances in breast cancer. Key updates are expected in endocrine therapy, HER2-targeted agents, antibody-drug conjugates, and triple-negative breast cancer.