Globally, stomach cancer remains a significant public health concern.

According to multiple international cancer statistics, the incidence of stomach cancer is significantly higher in East Asia than in many other regions of the world. Countries such as China, Japan, and South Korea have long reported some of the highest rates of stomach cancer globally.

With ongoing advances in medical research, the diagnosis and treatment of stomach cancer continue to improve.

As a distributor focused on global oncology drug information and supply, DengYueMed closely follows the latest developments in cancer treatment and provides patients and healthcare professionals with relevant information about anticancer medications and therapeutic options.

This article explores why stomach cancer is more common in East Asia, its major risk factors, and current treatment approaches and drug developments.

The Prevalence of Stomach Cancer in East Asia

Stomach Cancer remains one of the most common cancers worldwide, but its geographic distribution varies significantly.

The incidence of stomach cancer in East Asia is considerably higher than in Europe and North America, a trend confirmed by numerous epidemiological studies.

Several factors are believed to contribute to this difference, including dietary habits, infection rates of Helicobacter pylori, as well as genetic and environmental influences.

In addition, some countries in East Asia have more comprehensive screening programs, which may also lead to higher detection rates of early-stage cases.

Major Risk Factors for Stomach Cancer in East Asia

1. Helicobacter pylori Infection

Infection with Helicobacter pylori is considered one of the most important risk factors for stomach cancer. Long-term infection can lead to chronic gastritis, gastric mucosal atrophy, and intestinal metaplasia, all of which may increase the risk of cancer development.

In several East Asian countries, the prevalence of Helicobacter pylori infection remains relatively high, which may partly explain the higher incidence of stomach cancer in the region.

2. Dietary Habits

Traditional diets that include large amounts of high-salt foods, pickled foods, and smoked foods may also contribute to an increased risk of stomach cancer. These foods can damage the gastric mucosa and may cause long-term irritation to stomach tissues.

As dietary patterns change and food preservation methods improve, the incidence of stomach cancer has gradually declined in some regions.

3. Genetic and Environmental Factors

Genetic factors may also play a role in some cases of stomach cancer. Individuals with a family history of stomach cancer may have a higher risk of developing the disease.

Additionally, smoking, long-term alcohol consumption, and certain occupational exposures are also considered potential contributing factors.

Common Symptoms of Stomach Cancer

In its early stages, stomach cancer may cause no obvious symptoms or only mild digestive discomfort. As the disease progresses, patients may experience:

● Upper abdominal discomfort or pain

● Loss of appetite

● Unexplained weight loss

● Nausea or vomiting

● Black stools or anemia

Because these symptoms are relatively common and nonspecific, many patients are diagnosed at a later stage of the disease.

For this reason, several East Asian countries have introduced stomach cancer screening programs to improve early detection rates.

Main Treatment Options for Stomach Cancer

Treatment for stomach cancer is typically individualized based on tumor stage, overall patient health, and molecular characteristics. Common treatment approaches include:

Surgery

For early-stage or localized stomach cancer, surgery remains the most important treatment option.

Chemotherapy

Chemotherapy is often used as adjuvant therapy after surgery or for advanced disease management.

Targeted Therapy

Drugs targeting specific molecular pathways may be used in selected patients.

Immunotherapy

In recent years, immune checkpoint inhibitors have become an important treatment option for some patients with advanced stomach cancer.

Common Drugs Used in Stomach Cancer Treatment

As oncology research continues to progress, several medications have been introduced for the treatment of stomach cancer or are currently being studied in clinical settings.

Trastuzumab

Trastuzumab is a monoclonal antibody that targets the HER2 receptor and is commonly used in patients with HER2-positive stomach cancer.

It works by blocking HER2 signaling pathways and inhibiting the growth of cancer cells. It is often used in combination with chemotherapy.

Trastuzumab deruxtecan

Trastuzumab deruxtecan is an antibody-drug conjugate (ADC) that combines an anti-HER2 antibody with a cytotoxic drug. This design allows the chemotherapy agent to be delivered more precisely to cancer cells.

It has shown therapeutic potential in some patients with previously treated HER2-positive stomach cancer.

Nivolumab

Nivolumab is a PD-1 immune checkpoint inhibitor that works by activating the immune system to recognize and attack cancer cells. In some patients with advanced stomach cancer, immunotherapy has become an important treatment option.

Future Directions in Stomach Cancer Research

Research into stomach cancer continues to advance, with several promising areas of focus:

● New immunotherapy combination strategies

● Development of additional targeted therapies

● Precision medicine and molecular classification

● Early screening technologies and AI-assisted diagnosis

These innovations may further improve treatment outcomes for patients with stomach cancer in the future.

Conclusion

The high incidence of Stomach Cancer in East Asia is associated with multiple factors, including Helicobacter pylori infection, dietary habits, and environmental and genetic influences.

With ongoing advances in medical technology, screening, diagnosis, and treatment strategies for stomach cancer continue to improve. Targeted therapies and immunotherapies are also expanding treatment options for certain patients.

DengYueMed will continue to monitor global developments in oncology treatment and share updated information on anticancer medications to help patients and healthcare professionals stay informed about evolving cancer therapies.