Key Oncology Conferences to Attend in the Second Half of 2025

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Key Oncology Conferences to Watch in Fall 2025

The second half of 2025 will feature a series of crucial 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 wiht 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.” Attendees will hear from experts 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

Dates: October 8 to 10, 2025
Location: San Diego, California

The NCCN Annual Congress provides a platform for multidisciplinary discussions and updates on NCCN guidelines. This meeting is designed for clinicians to learn about implementing the latest evidence-based strategies into their practice.

What potential impact could teh focus on precision medicine at ASCO 2025 have on treatment strategies for pediatric cancers?

ASCO Annual Meeting – Chicago, IL (May 30 – June 3, 2025)

While technically kicking off the “second half” planning, the American Society of Clinical Oncology (ASCO) Annual Meeting remains the premier event for oncology professionals. Expect cutting-edge research presentations covering all cancer types, educational sessions on new treatment modalities, and extensive networking opportunities.

Key Focus Areas: immunotherapy, targeted therapies, precision medicine, cancer prevention, palliative care.

Who Should Attend: Medical oncologists, radiation oncologists, surgical oncologists, hematologists, oncology nurses, researchers, pharmaceutical professionals.

Website: https://www.asco.org/annual-meeting

ESMO Congress – Vienna, Austria (September 19 – 23, 2025)

the European Society for Medical Oncology (ESMO) Congress is a globally recognized platform for sharing the latest advancements in cancer research and clinical practice. It boasts a strong international presence and a focus on translational research – bridging the gap between laboratory findings and patient care.

highlights: Multidisciplinary sessions, poster presentations, industry-sponsored symposia, and dedicated tracks for young oncologists.

Specialty Focus: Strong portrayal in gastrointestinal cancers, thoracic oncology, and genitourinary cancers.

Website: https://www.esmo.org/congresses/esmo-congress

ASTRO Annual Meeting – San Diego, CA (october 19 – 22, 2025)

the American Society for Radiation Oncology (ASTRO) Annual Meeting is the leading conference for radiation oncology professionals. It provides a deep dive into the latest techniques, technologies, and clinical trials in radiation therapy.

Key Topics: Proton therapy, stereotactic body radiation therapy (SBRT), brachytherapy, image-guided radiation therapy (IGRT), and radiation safety.

Networking Opportunities: Dedicated events for residents, fellows, and early-career radiation oncologists.

Website: https://www.astro.org/annual-meeting

San Antonio Breast Cancer Symposium (SABCS) – San Antonio, TX (December 10 – 14, 2025)

SABCS is the premier meeting for breast cancer research.It’s known for presenting the most promising early-stage clinical trial results, often influencing treatment guidelines for years to come. Expect a highly focused and intense program.

Focus: Translational breast cancer research, adjuvant therapy, neoadjuvant therapy, metastatic breast cancer, and breast cancer prevention.

Audience: Breast surgeons, medical oncologists, radiation oncologists, pathologists, and basic scientists.

Website: https://www.sabcs.org/

Hematologic malignancies – ASCO/ASH Joint Meeting (Variable Location – 2025 TBD)

This collaborative meeting between ASCO and the American Society of Hematology (ASH) focuses specifically on leukemia, lymphoma, myeloma, and other blood cancers. It’s a crucial event for hematologists and oncologists treating these complex diseases. Dates and location are typically announced in early 2025.

Core Areas: Minimal residual disease (MRD) monitoring, CAR T-cell therapy, bispecific antibodies, and novel combinations of chemotherapy and targeted agents.

Benefit of Joint format: Facilitates cross-specialty collaboration and a more comprehensive understanding of hematologic malignancies.

Website: Check both ASCO (https://www.asco.org/) and ASH (https://www.hematology.org/) websites for updates.

Pediatric Oncology – SIOP Annual Meeting (Variable Location – 2025 TBD)

The International Society of Paediatric Oncology (SIOP) Annual Meeting is the leading global conference dedicated to childhood cancer. It brings together researchers, clinicians, and advocates from around the world to share knowledge and improve outcomes for children with cancer. Dates and location are typically announced in early 2025.

Key Focus: Novel therapies for pediatric cancers, survivorship issues, and global disparities in cancer care.

Unique Outlook: Addresses the specific challenges of treating cancer in children, including long-term side effects and quality of life.

Website: https://siop-online.org/

Benefits of Attending Oncology Conferences

Beyond the obvious continuing medical education (CME) credits, attending these conferences offers significant benefits:

Early Access to Data: Hear about groundbreaking research before it’s published in journals.

networking: Connect with leading experts and peers from around the globe.

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