Glioblastoma Multiforme (GBM) Insights and Trends
- According to DelveInsight's analysis, the total prevalent cases of GBM were ~38,000 in the 7MM (the United States, the EU4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan) in 2025.
- The total number of incident cases of GBM in the United States was nearly 15,500 in 2025.
- In 2025, BRAF V600E mutation cases accounted for the largest share of incident GBM cases in the United States.
- The total number of cases of Primary GBM was found to be the highest than Secondary GBM in the United States and was estimated to be nearly 14,000 in 2025.
- GBM is associated with a higher disease burden in men than in women. Roughly 60% of the total GBM cases in the United States are men.
Glioblastoma Multiforme (GBM) Epidemiology Forecast in the 7MM
- 2025 Incident Cases of GBM: ~38,000
- GBM Growth Rate (2026-2036): 2.7% CAGR
DelveInsight's 'Glioblastoma Multiforme (GBM) - Epidemiology Forecast - 2036' report delivers an in-depth understanding of the GBM, historical and forecasted epidemiology in the United States, EU4 (Germany, Spain, Italy, and France) and the United Kingdom, and Japan.
Glioblastoma Multiforme (GBM) Understanding and Diagnosis Algorithm
GBM Overview
GBM is often located in a region of the forebrain known as the cerebrum, which controls some of the most advanced processes such as speech and emotions. While GBM is highly locally invasive (invading normal brain tissue), it rarely spreads to other organs beyond the brain. A highly aggressive, fast-growing cancer, and treatment is often limited by the tumor location and the ability of a patient to tolerate surgery. Consequently, it is a particularly difficult cancer to treat. GBM may develop due to abnormal changes in the structure and orientation of cells secondary to oncogenes or the loss of tumor suppressor genes.
GBM Diagnosis
A patient with any neurological symptoms will first be given a physical exam that includes neurologic function tests (reflexes, muscle strength, eye and mouth movement, coordination, and alertness). If a tumor is suspected, the patient will have imaging tests so that doctors can look into the brain for any abnormality. Procedures that can be used for this purpose include MRI, CT, and MR spectroscopy. Surgical biopsy is also used for the diagnosis of GBM.
Glioblastoma Multiforme (GBM) Epidemiology
Key Findings from GBM Epidemiological Analysis and Forecast
- According to DelveInsight's estimates, the total number of incident cases of GBM in the 7MM was nearly 38,000 cases in 2025 and is projected to increase during the forecasted period.
- The total number of incident cases of GBM in the United States was nearly 15,500 in 2025.
- In 2025, BRAF V600E mutation cases accounted for the largest share of incident GBM cases in the United States.
- The total number of cases of Primary GBM was found to be the highest than Secondary GBM in the United States and was estimated to be nearly 14,000 in 2025.
- GBM is associated with a higher disease burden in men than in women. Roughly 60% of the total GBM cases in the United States are men.
Scope of the Report:
- The report covers a segment of an executive summary, a descriptive overview of GBM, explaining its causes, signs and symptoms, and pathogenesis.
- Comprehensive insight has been provided into the epidemiology segments and forecasts, the future growth potential of the diagnosis rate, and disease progression.
Report Insights
GBM patient population forecast
Report Key Strengths
- Epidemiology-based (epi-based) bottom-up forecasting
- 11-year forecast
- Patient burden trends (by geography)
FAQs:
- What are the disease risks, burdens, and unmet needs of GBM? What will be the growth opportunities across the 7MM concerning the patient population with GBM?
- What is the historical and forecasted GBM patient pool in the US, EU4 (Germany, France, Italy, and Spain), the UK, and Japan?
Reasons to Buy:
- Insights on patient burden/disease prevalence, evolution in diagnosis, and factors contributing to the change in the epidemiology of the disease during the forecast years.
- To understand key opinion leaders' perspectives around the diagnostic challenges to overcome barriers in the future.
- Detailed insights on various factors hampering disease diagnosis and other existing diagnostic challenges.