Breast cancer cases are projected to rise by 38 percent worldwide by 2050, with annual deaths expected to increase by a staggering 68 percent.
This latest report is from the International Agency for Research on Cancer (IARC), a specialized branch of the World Health Organization (WHO).
The study, published in Nature Medicine on Monday, February 24 warns that if current trends persist, the world could face 3.2 million new breast cancer cases and 1.1 million related deaths each year by mid-century.
Experts caution that low- and middle-income countries will bear the brunt of this growing crisis, as inadequate healthcare infrastructure continues to hinder early detection and treatment. “Every minute, four women are diagnosed with breast cancer worldwide and one woman dies from the disease, and these statistics are worsening,” said Dr. Joanne Kim, an IARC scientist and co-author of the report.
Dr. Kim emphasized that nations can curb these alarming trends by implementing primary prevention measures, such as WHO’s recommended ‘best buys’ for noncommunicable disease prevention, and by investing in early detection and treatment initiatives.
Breast cancer remains the most common cancer among women and ranks as the second most common cancer globally. In 2022 alone, approximately 2.3 million new cases were diagnosed, resulting in 670,000 deaths. However, the report highlights stark regional disparities.
The highest incidence rates were recorded in Australia, New Zealand, North America, and Northern Europe, while the lowest were found in South-Central Asia and parts of Africa. Meanwhile, the highest mortality rates were reported in Melanesia, Polynesia, and Western Africa, where limited access to healthcare leads to poorer survival outcomes.
Economic factors also play a crucial role in survival rates. While high-income nations boast an 83 percent survival rate for breast cancer patients, the situation is dire in low-income countries, where over half of diagnosed women succumb to the disease.
In response to these alarming projections, the WHO launched the Global Breast Cancer Initiative in 2021, with an ambitious goal of reducing global breast cancer mortality by 2.5 percent annually. If successful, this initiative could prevent 2.5 million deaths by 2040.
Dr. Isabelle Soerjomataram, Deputy Head of IARC’s Cancer Surveillance Branch, underscored the necessity of quality cancer data to inform better healthcare policies, particularly in resource-limited regions.
“Continued progress in early diagnosis and improved access to treatment are essential to address the global gap in breast cancer and ensure that the goal of reducing suffering and death from breast cancer is achieved by all countries worldwide.”
Dr. Isabelle Soerjomataram
Promising Advances in Breast Cancer Treatment
There are some current breakthroughs in breast cancer research, offering renewed hope for patients worldwide. Scientists at the University of Cincinnati have identified a microRNA strand, miR-205, which may help combat treatment resistance by regulating MED1, a protein linked to estrogen receptor-positive cancers.
Meanwhile, researchers at the University of Manchester have discovered that blocking the ERK5 molecule can prevent breast cancer cells from developing resistance to HER2-targeted therapies, potentially improving outcomes for aggressive HER2+ cancers.
Additionally, the U.S. Food and Drug Administration (FDA) has approved Datroway, an innovative antibody-drug conjugate that selectively targets and destroys cancer cells while preserving healthy ones. This breakthrough offers a promising new option for patients battling advanced hormone receptor-positive and HER2-negative breast cancer.
Further advancements include the development of light-sensitive cyanine-carborane salts, which can eradicate metastatic breast cancer tumors with minimal side effects using photodynamic therapy. These cutting-edge treatments mark significant progress in the fight against breast cancer, offering improved survival rates and new hope for millions worldwide.
With the projected rise in breast cancer cases and deaths, global health leaders face a pressing challenge. Coordinated international efforts, increased investment in research, and expanded access to early detection and treatment are essential to prevent unnecessary loss of life to a disease that is increasingly both preventable and treatable.
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