NCT04555395

The Differences Between Gonadal and Extra-gonadal Malignant Teratomas

The Differences Between Gonadal and Extra-gonadal Malignant Teratomas in Both Genders and the Effects of Chemotherapy

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 3,799 (actual)
• Sponsor: Shanghai 10th People's Hospital · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

A tumor comprising of different types of tissues (such as hair, muscle, bone, etc.) is known as a teratoma. It is a type of germ cell (cells that make sperm or eggs) tumor. When these germ cells have rapid cancerous growth, then such a teratoma is called a malignant teratoma. We have studied the differences between gonadal and extra-gonadal malignant teratomas and the effects of chemotherapy in both genders. Methods: The samples of 3799 male and 1832 female patients with malignant teratoma samples, between the ages of 1 and 85+ years, were selected from the years 1973 to 2014. Trends in incidence, estimated prevalence, incidence rates, and frequency were calculated in gonadal and extra-gonadal tumors with age adjustment. The fiveyear observed, expected, and relative survival rates were analyzed to study the prognosis.

Conditions

• SEER Database

Interventions

Type	Name	Description
OTHER	survival rates	survival rates

Timeline

• Start date: 1973-01-01
• Primary completion: 2020-01-01
• Completion: 2020-01-01
• First posted: 2020-09-18
• Last updated: 2020-09-18