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Study of Respiratory Gated Proton Beam Radiotherapy for Inoperable Pancreas Carcinoma

A Phase II Study of Respiratory Gated Proton Beam Radiotherapy for Inoperable Pancreas Carcinoma

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00658801
Enrollment
4
Registered
2008-04-15
Start date
2007-01-31
Completion date
2010-02-28
Last updated
2011-07-08

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

Conditions

Pancreatic Cancer

Brief summary

The only curative option for pancreatic cancer patients is surgery, but the patients within 20% of them are possible for a radical surgery. Accordingly, concurrent chemo-radiation therapy is generally used for palliation of unresectable pancreatic cancer patients. So far, the use of 5-fluorouracil (5-FU) was the traditional method of chemotherapy. However, these days, oral anti-cancer medicine, capecitabine(Xeloda®), was developed and considered as an alternative medicine of 5-fluorouracil (5-FU). Furthermore, according to the recent results of clinical trials, the clinical use of capecitabine(Xeloda®) with radiation therapy was proved to be very effective and safe. Proton therapy is a new radiation therapy which remaining energy is released when they reach the tumor, delivering the most effective dose of radiation and which can minimize the exposure to normal tissues. The purpose of this trial is to improve the therapeutic effects by using proton therapy and chemotherapy concurrently.

Interventions

Prescription dose to PTV as according to the following dose escalation schema: 1. Group 1: Tumor size ≤5cm Dose level 1: 60 GyE /20 fx, 3GyE fraction dose, 5 days/week. Dose level 2: 66 GyE /22 fx, 3GyE fraction dose, 5 days/week. Dose level 3: 72 GyE /24 fx, 3GyE fraction dose, 5 days/week. 2. Group 2: 5cm \<Tumor size ≤10cm Dose level 1: 54 GyE /18 fx, 3GyE fraction dose, 5 days/week. Dose level 2: 60 GyE /20 fx, 3GyE fraction dose, 5 days/week. Dose level 3: 66 GyE /22 fx, 3GyE fraction dose, 5 days/week.

Sponsors

National Cancer Center, Korea
Lead SponsorOTHER_GOV

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Pathologically confirmed adenocarcinoma of the pancreas or a serum CA19-9 level higher than normal limits and an pancreas cancer-compatible radiological features in one or more in CT/MRI/PET scans * Unresectable disease base on institutional standard criteria of unresectability or recurrent disease following radical surgery. There is no evidence of metastatic disease in the major viscera and no peritoneal seeding * Patients with biliary or gastroduodenal obstruction must have drainage prior to starting chemoradiation * All malignant disease must be encompassable within a single irradiation field (15x15cm maximum) * All patients must have radiographically assessable disease * No previous irradiation to the planned field * Age of ≥ 18 years * Performance status of 0 to 2 on the Eastern Cooperative Oncology Group (ECOG) score * Required Entry Labortory Parameters: * WBC count ≥ 2,000/mm3 * hemoglobin level ≥ 7.5 g/dL * platelet count ≥ 100,000/mm3 * total bilirubin ≤ 2.0 mg/dL (Patients with elevated bilirubin due to obstruction should be stented and their bilirubin should be decreased ≤ 2.0 mg/dL prior to study entry) * creatinine ≤ 3.0 mg/dL * Oral intake (including J-tube feeding) of ≥ 1,500 calories/day should be maintained.

Exclusion criteria

* There is evidence of metastasis in the major viscera or peritoneal seeding. * Age of \< 18 years * Previous history of RT adjacent to planned field * Poor performance status of 3 to 4 on the Eastern Cooperative Oncology Group (ECOG) score * Pregnant or breast feeding status * Previous history uncontrolled other malignancies within 2 years

Design outcomes

Primary

MeasureTime frame
all cause mortalitytwo years

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026