Comparison of Lymphopenia after X-ray Radiotherapy and Carbon-Ion Therapy in Pancreatic Cancer

An observational study to retrospectively compare peripheral blood lymphocyte counts during X-ray and carbon ion radiotherapy for pancreatic cancer. - Pancreatic Cancer Carbon Ion Radioherapy Peripheral Blood Lymphocyte Count

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000050388

Enrollment

200

Registered

2023-02-26

Start date

2023-02-09

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pancreatic Cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with pancreatic cancer who received neoadjuvant or definitive radiotherapy to the pancreatic area between January 2005 and December 2015

Exclusion criteria

Exclusion criteria: 1) Salvage aim (RT for recurrent pancreatic cancer) 2) Prior radiotherapy to the abdomen area 3) Previous history of other types of cancer 4) Distant metastasis 5) Follow-up period of less than 6 months 6) Neuroendocrine tumor 7). If the research subject or his/her representative refuses to allow the use of his/her clinical data for this research

Design outcomes

Primary

Measure	Time frame
the incidence of lymphopenia after radiotherapy	—

Countries

Japan,Asia(except Japan)

Contacts

Public ContactShiegru Yamada

National Institutes for Quantum Science and Technology QST Hospital

yamada.shigeru@qst.go.jp043-206-3306

Outcome results