Investigation of clinical effect of vitamin D supplement therapy for pancreatic cancer

Recruiting

• Conditions: pancreatic cancer

• Registration Number: jRCTs051210021

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-05-10
• Last Update Posted: 2025-02-03

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

(1) Patients with confirmed pancreatic cancer classified as resectable pancreatic cancer who are scheduled to undergo surgery in 4 to 8 weeks after 5 to 8 weeks of preoperative systemic chemotherapy or chemoradiation. (2) Age at the time of consent: 20 years or older
(3) PS: 0-1 (ECOG grade)
(4) Patients with major organ function (bone marrow, liver, kidney, lung, etc.)
-White blood cell count: 3,500/mm3 or higher, neutrophil count: 2,000/mm3 or higher,
-platelet count: 100,000/mm3 or higher.
-Hemoglobin: 9.0 g/dL or higher
-Total bilirubin: 2.0 mg/dL or less (However, 3.0 mg/dL or less for patients undergoing biliary drainage for obstructive jaundice caused by tumor)
-AST(GOT), ALT(GPT): 150U/L or less
-Serum creatinine level: 1.2 mg/dL or less, creatinine clearance: 60 mL/min or more (estimation by the Cockcroft-Gault formula is acceptable)
(5)Patients whose written consent to participate in this study has been obtained.

Exclusion Criteria

(1) Patients with the following electrolyte abnormalities:

1. Hypercalcemia (corrected serum Ca level of 11.5 mg/dl or higher (equivalent to Grade 2 in CTCAE ver4.0))
2. Hyper PTH, PTHrPemia (above the standard value)
   (2) Patients who are using or have taken drugs, supplements, or health foods related to bone metabolism (bisphosphonate, vitamin D, calcium, phosphorus, etc.)
   (3) Patients who are using steroids
   (4) Patients who have difficulty with oral treatment
   (5) Patients with severe mental disorders (6) Patients with severe drug hypersensitivity (7) Patients with pregnant or wishing to pregnant (8) Other patients who are judged by the principal investigator or sub-investigator to be inappropriate for the safe conduct of this study.

Study & Design

• Study Type: Interventional
• Study Design: single assignment

Primary Outcome Measures

Name	Time	Method
Pathological evaluation of the number of alfa-SMA positive cells in resected pancreatic cancer specimens		Number of alfa-SMA positive cells in five randomly selected fields of view at 200x in stromal cells in pancreatic cancer tissue

Secondary Outcome Measures

Name	Time	Method
Relationship between alfa-SMA positive cells and Vitamin D administration period		Examination of the relationship between the number of alfa-SMA positive cells and Vitamin D administration period
Relationship between alfa-SMA positive cells and Serum vitamin D concentration		Examination of the relationship between the number of alfa-SMA positive cells and Serum vitamin D concentration (25(OH) vitamin D, 1,25(OH)2 vitamin D)
Relationship between alfa-SMA positive cells and Background factors		Examination of the relationship between the number of alfa-SMA positive cells and Background factors; age, gender, tumor markers (CEA, CA19-9), preoperative treatment, disease stage, and disease type
Rate of change in bone mineral density		Rate of change in bone mineral density
Adverse events		Adverse events that occurred during the study