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Radiopaque Hydrogel in Patients Undergoing Radiotherapy for Pancreatic Cancer

Evaluation of a Novel Absorbable Radiopaque Hydrogel in Patients Undergoing Image-guided Radiotherapy for Pancreatic Adenocarcinoma

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03307564
Enrollment
6
Registered
2017-10-11
Start date
2018-06-06
Completion date
2022-12-31
Last updated
2024-04-25

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

Conditions

Pancreatic Adenocarcinoma

Brief summary

The goal of this pilot imaging study is to evaluate the visibility of marking the interface between the pancreas and duodenum with TraceIT Tissue Marker. Patients with a pathologically confirmed diagnosis of BR/LAPC (borderline resectable/locally advanced pancreatic cancer) pancreatic adenocarcinomas indicated for neo-adjuvant image-guided radiotherapy with SBRT (stereotactic body radiation therapy) will be enrolled. This study will thus set the stage for further investigations using the TraceIT Tissue Marker to avoid duodenum toxicity with imaging localization, enabling further dose intensification with SBRT or IMRT to improve the clinical outcomes in BR/LAPC.

Detailed description

Pancreatic ductal adenocarcinoma is now the third leading cause of cancer-related death, with a devastating 5-year overall survival (OS) rate of nearly 8%, despite having the 12th most common incidence of all malignancies in the United States. One-third of patients will present with borderline resectable or unresectable, locally advanced pancreatic cancer (BR/LAPC). In the cases of LAPC, chemotherapy with or without radiation may be recommended to improve the quality of life by relieving symptoms and extending survival. Despite aggressive combined modality therapy, the median survival remains between 9 and 15 months. Current guidelines for the management of BR/LAPC patients include single- or multi-agent chemotherapy or chemoradiation (CRT) in sequence with chemotherapy. Results of studies comparing chemotherapy alone to CRT for patients with BR/LAPC are mixed. The importance of local control or delaying local progression on improving morbidity and possibly mortality in patients with pancreatic cancer is supported by autopsy data demonstrating that 30% of patients die of locally destructive disease. It follows that in the cases of LAPC, advanced radiation therapy techniques using dose-escalation with intensity modulated radiotherapy (IMRT) and stereotactic body radiotherapy (SBRT) are potential strategies to improve local control. A consistent challenge to dose-escalation with IMRT (intensity modulation radiation therapy) or SBRT is the sensitivity of the surrounding gastrointestinal organs, particularly the small bowel which is directly adjacent to the head of the pancreas head of the pancreas (HOP). For BR/LAPC patients treated with CRT, advances in image guidance have provided the opportunity to safely deliver higher biologically effective doses of radiation therapy using IMRT of \>70 Gy (57.25 Gy in 25 fractions, BED 70.36 Gy) compared to standard fractionation regimens (50.40 Gy in 28 fractions or 50 Gy in 25 fractions, BED 59.47 Gy and 60 Gy, respectively). Those patients who underwent dose-escalated CRT with BED\>70 Gy, did have a superior OS compared to those receiving BED\<70 Gy, supporting the utility of dose-escalation in improving long-term outcomes. SBRT involves a short course of radiation therapy, five fractions or less, and has demonstrated higher rates of local control compared to CRT in other disease sites. Early studies evaluating SBRT for pancreatic cancer utilized single fractions of 25 Gy, resulting in local control rates of 100% at 1 year but unacceptably high rates of gastrointestinal toxicity. More recently, hypofractionated SBRT (33 Gy total, 6.6 Gy daily fractions) has been evaluated and utilized by our group in an effort to reduce the toxicity of therapy, with results demonstrating nearly 80% rate of freedom from local progression at one year and an acceptable 11% long-term gastrointestinal toxicity. Outcomes with SBRT are thus promising; however, higher local control rates with dose-escalation may be achievable, but current practice is limited due to risks of toxicity. The goal of this pilot imaging study is to evaluate the visibility of marking the interface between the pancreas and duodenum with TraceIT Tissue Marker. Patients with a pathologically confirmed diagnosis of BR/LAPC pancreatic adenocarcinomas indicated for neo-adjuvant image-guided radiotherapy with SBRT will be enrolled. This study will thus set the stage for further investigations using the TraceIT Tissue Marker to avoid duodenum toxicity with imaging localization, enabling further dose intensification with SBRT or IMRT to improve the clinical outcomes in BR/LAPC.

Interventions

DEVICETraceIT tissue marker injection

The TraceIT injection will be performed during the endoscopic fiducial placement which is the standard of care. CTs to serially confirm TraceIT positioning will be performed on the same day during patient visits for their middle (2nd or 3rd fraction) and last (5th fraction) radiation therapy treatments.

Sponsors

Augmenix, Inc.
CollaboratorINDUSTRY
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

marking the interface between the pancreas and duodenum with TraceIT Tissue Marker in patients undergoing image-guided radiotherapy

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

1. Age ≥18 years old 2. BR/LAPC pancreatic carcinoma disease 3. Radiotherapy or chemoradiotherapy for treatment of the disease is indicated with the intent for eventual surgical resection 4. Subjects Screening/Baseline laboratory testing must meet the following laboratory value criteria: 1. White blood cell count: ≥ 3.0 x 109/L 2. Absolute neutrophil count (ANC): ≥ 1.5 x 109/L 3. Platelets: ≥ 100 x 109/L 4. Total bilirubin: ≤ 2.0 times upper limit of normal (ULN) 5. AST (Aspartate Aminotransferase) and ALT (Alanine Aminotransferase): ≤ 3.0 times institutional upper normal limit 6. Serum creatinine: 1.5 times ULN (upper limit of normal) 7. INR (international normalized ratio): \< 1.5 8. Serum pregnancy: Negative 9. Hemoglobin: ≥ 8.0 g/dl 5. Zubrod Performance Status 0-2 6. Subject or authorized representative, has been informed of the nature of the study and has provided written informed consent, approved by the appropriate Institutional Review Board (IRB) of the respective clinical site.

Exclusion criteria

1. Previous thoracic radiotherapy 2. Any GI (gastrointestinal) abnormality that would interfere with the ability to access the injection site 3. Active gastroduodenal ulcer or watery diarrhea 4. Active bleeding disorder or a clinically significant coagulopathy defined as a PTT (Partial thromboplastin time) \>35s or INR\>1.4 or platelet count less than 100,000 per mm3. 5. Active inflammatory or infectious process involving the gastrointestinal tract based on positive diagnosis or suspected diagnosis in the presence of fever\>38°C or WBC\>12,000/uL. 6. Compromised immune system: WBC (white blood count) \<4000/uL or \>12,000/uL. 7. History of Chronic Renal Failure. 8. Documented history of uncontrolled diabetes (i.e., symptomatic hyperglycemia that cannot be medically managed, fasting blood glucose level above 300 mg/dL, and/or frequent swings between hyperglycemia and hypoglycemia) 9. Currently enrolled in another investigational drug or device trial that clinically interferes with this study. 10. Unable to comply with the study requirements or follow-up schedule. 11. Any condition or comorbidity that the Investigator believes would interfere with the intent of the study or would make participation not in the best interest of the subject. 12. Pregnancy, breast-feeding, women of child-bearing age must use contraceptives

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients Where TraceIT Tissue Marker Placement Achievedday 1Measured as number of patients where marking the interface between the pancreas and duodenum with TraceIT Tissue Marker in patients undergoing image-guided radiotherapy for BR/LAPC pancreatic adenocarcinoma was achieved.

Countries

United States

Participant flow

Participants by arm

ArmCount
TraceIT Tissue Marker Injection
The TraceIT injection will be performed during the endoscopic fiducial placement which is the standard of care. CTs to serially confirm TraceIT positioning will be performed on the same day during patient visits for their middle (2nd or 3rd fraction) and last (5th fraction) radiation therapy treatments TraceIT tissue marker injection: The TraceIT injection will be performed during the endoscopic fiducial placement which is the standard of care. CTs to serially confirm TraceIT positioning will be performed on the same day during patient visits for their middle (2nd or 3rd fraction) and last (5th fraction) radiation therapy treatments.
6
Total6

Baseline characteristics

CharacteristicTraceIT Tissue Marker Injection
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
4 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Race/Ethnicity, Customized
asian
1 Participants
Race/Ethnicity, Customized
other
2 Participants
Race/Ethnicity, Customized
white/caucasian
3 Participants
Region of Enrollment
United States
6 Participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 6
other
Total, other adverse events
0 / 6
serious
Total, serious adverse events
1 / 6

Outcome results

Primary

Number of Patients Where TraceIT Tissue Marker Placement Achieved

Measured as number of patients where marking the interface between the pancreas and duodenum with TraceIT Tissue Marker in patients undergoing image-guided radiotherapy for BR/LAPC pancreatic adenocarcinoma was achieved.

Time frame: day 1

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
TraceIT Tissue Marker InjectionNumber of Patients Where TraceIT Tissue Marker Placement Achieved6 Participants

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