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| ID | Type | Description | Link |
|---|---|---|---|
| R44CA203052 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Cancer Institute (NCI) | NIH |
| CHI St. Luke's Health, Texas | OTHER |
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The laser tissue welding device is intended for use in patients requiring sealing of the pancreas after partial pancreatectomy, and including those patients who are fully heparinized or have hemodilutional coagulation failure.
The hypothesis is that the laser tissue welding device is safe and effective in sealing the pancreas, thereby decreasing the blood loss (operative and post-operative), and pancreatic juice leakage for patients when the Laser Tissue Welding device is used after pancreatic resection.
UNMET CLINICAL NEED
In the United States, pancreatic cancer is the fourth leading cause of cancer-related death in both men and women and will be the second leading case by 2030. Pancreatoduodenectomy (Whipple procedure) and distal partial pancreatectomy is used to treat pancreatic tumors, and these procedures are associated with a high rate of morbidity due to pancreatic fistulae.
As per the Surveillance, Epidemiology and End Results (SEER) Program: It is estimated that 41,609 men and women (21,370 men and 21,770 women) will be diagnosed with and 38,460 men and women will die of cancer of the pancreas in 2013. The five-year survival is dismal, 24.1% for localized malignancy, and drops to 6% if there is regional spread. There are 45,220 new cases in 2013 and 38,460 deaths.
Distal Pancreatectomy may be indicated for malignant exocrine tumors of the body and tail of pancreas (62%), insulinomas, chronic pancreatitis (12%), pancreatic pseudocysts, non pancreatic tumors (23%) and injury due to trauma.
Due to heighten awareness and preventative care, there has been an increase in detection of incidental small pancreatic mass cases due to widespread use of abdominal cross sectional imaging and thus an increase in the amount of pancreatic surgery performed. This is the stage when curative resections may be possible.
For patients undergoing distal pancreatectomy, pancreatic fistulas occurred post-operatively in 31% of patients. Over the long-term Kazanjian et al analyzed, 182 patients from 1996-2005 who underwent Pancreatoduodenectomy to treat ductal adenocarcinoma, concluded that the principal factor influencing long-term survival was operative blood loss. Pancreatic fistula is a main cause of postoperative morbidity, and is associated with numerous further complications, such as intra-abdominal abscesses, wound infection, sepsis, electrolyte imbalance, malabsorption, and hemorrhage, and with a dramatically increase in healthcare resource utilization.
The current state-of-art pancreatic surgical resections have an unacceptable pancreatic leak rate of 30-50%. This is because there are no FDA cleared or approved sealants or devices found to be safe or effective for sealing this organ. The current standard of care is anything but standard because of the use of off-label devices and sealants.
Jörg Kleeff et al reviewed the factors for surgical failure of distal pancreatectomy in 302 consecutive patients from 1993 to 2006 using four different surgical closures (gut anastomosis, seromuscular patch, suture and stapling device). Although distal pancreatectomy is less moribund as compared to Whipple procedure, morbidity was 32-52%, pancreatic fistulas occurred in 20-33% and mortality in 2% of cases. Pancreatic fistulas contributed significantly to morbidity, sepsis, length of stay and overall costs. Stapler closure of the pancreatic remnant is associated with a significantly higher fistula rate.
Laser Tissue Welding is the first combination (laser and biologic) class III surgical device intended to join and seal tissues accurately and instantly. The treatment process uses thermal energy created when a laser excites photosensitive dye molecules, to coagulate the protein albumin which transforms from a liquid to a solid instantly. Laser tissue welding creates a non-compressive, non-ablative sealing of tissues with microscopic thermal damage. This combination of a laser with albumin biologics stops bleeding and fluid leaks in nanoseconds without using sutures, hemostatic clotting factors (platelets/thrombin/fibrin), thermal or cryoablation.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Distal Pancreatectomy Sealing using LTW | Experimental | At the completion of pancreatic resection, the cut surface of the pancreas is covered with two layers of Albu-Green solder and one layer of D-Albumin lamina, all welded with the laser. The 60 Watt custom 810nm diode laser, is set to deliver continuous energy with laser irradiation power of approximately 150 W/cm2 with a Fluence of 90 J/cm2. During soldering the tip of the custom hand piece with top hat beam profile is held 1-2 cm from the wound surface to generate a 5mm spot size. Albu-Green Solder is observed to convert from a liquid green state to a solid white crust when the laser is activated indicating the completion of welding and providing a visual cue to the operator. The amount of Albu-Green solder and size of the denatured albumin lamina used is documented. The total laser tissue welding time for the three layers and the laser tissue welding time in seconds per cm2 is documented. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Distal Pancreatectomy Sealing Using LTW | Device | The device's intended use is to seal the pancreatic surface using a laser to weld human albumin based biomaterials after surgical removal of pancreatic tumors during a partial pancreatectomy. |
| Measure | Description | Time Frame |
|---|---|---|
| PRIMARY EFFICACY AS A SEALANT: Intra-operative blood loss | Operative blood loss is defined by: volume of blood in the suction bottles, volume of blood clots, and weight of surgical towels before and after use. Clinical drop in hemoglobin (1 gm% = 300 ml) without hemodilution. Correlates with intra-operative blood transfusions. Correlates with post-operative blood transfusions. | Intra-operative |
| Measure | Description | Time Frame |
|---|---|---|
| SECONDARY SAFETY: Post-operative blood loss requiring return to the operating room | Secondary hemorrhage or intra-abdominal hematoma requiring surgical evacuation | 30 days |
| SECONDARY SAFETY: Prolonged post-operative pancreatic leakage |
| Measure | Description | Time Frame |
|---|---|---|
| SECONDARY EFFICACY: Total operating time (minutes) | Duration and Cost Metric | Intra-operative assessment |
| SECONDARY EFFICACY: Pancreas clamp time (minutes) | Duration Metric: Assesses organ ischemia and handling, and will correlate with compromised function (rise in serum Amylase and Lipase) (assesses organ ischemia and will correlate with compromised function) |
Inclusion Criteria:
Eligible participants will be 18 years and older of both genders.
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| OMAR BARAKAT, M.D | Baylor CHI St. Luke's Medical Center, Houston, Texas | Principal Investigator |
| STEPHEN HAROLD, M.D.; MPH; CCRC | Baylor CHI St. Luke's Medical Center, Houston, Texas | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Baylor CHI St. Luke's Medical Center | Houston | Texas | 77030 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 17414606 | Background | Kleeff J, Diener MK, Z'graggen K, Hinz U, Wagner M, Bachmann J, Zehetner J, Muller MW, Friess H, Buchler MW. Distal pancreatectomy: risk factors for surgical failure in 302 consecutive cases. Ann Surg. 2007 Apr;245(4):573-82. doi: 10.1097/01.sla.0000251438.43135.fb. | |
| 18216551 | Background | Goh BK. Re: Distal pancreatectomy: risk factors for surgical failure in 302 consecutive cases. Ann Surg. 2008 Feb;247(2):392-3; author reply 393. doi: 10.1097/SLA.0b013e318164022d. No abstract available. |
| Label | URL |
|---|---|
| NCI SEERS Register Cancer Stat Facts: Pancreas Cancer | View source |
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Open Label Combination Product (Laser + Biologic + Drug) regulated as a device
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Pancreatic juice leakage is measured in drainage bottles (ml/day) following surgery till a drain placed during the operation is removed before patient discharge. Accumulation of fluids around the pancreas will be assessed with U/S and CT scan at the mentioned time points.
| 30 days |
| SECONDARY SAFETY: Surgical space abscess | Secondary infection, intra-abdominal abscess formation requiring surgical evacuation | 30 days |
| Intra-operative assessment |
| SECONDARY EFFICACY: Laser tissue welding time or time to hemostasis (Duration Metric) | Duration and Cost Metric | Intra-operative assessment |
| SECONDARY EFFICACY: Length of ICU stays (Duration and cost Metric ) | Duration and Cost Metric | 30 days |
| SECONDARY EFFICACY: Total hospital stay (Duration and cost Metric ) | Duration and Cost Metric | 3 months |
| 19075167 | Background | Kazanjian KK, Hines OJ, Duffy JP, Yoon DY, Cortina G, Reber HA. Improved survival following pancreaticoduodenectomy to treat adenocarcinoma of the pancreas: the influence of operative blood loss. Arch Surg. 2008 Dec;143(12):1166-71. doi: 10.1001/archsurg.143.12.1166. |
| 18855976 | Background | Shrikhande SV, D'Souza MA. Pancreatic fistula after pancreatectomy: evolving definitions, preventive strategies and modern management. World J Gastroenterol. 2008 Oct 14;14(38):5789-96. doi: 10.3748/wjg.14.5789. |
| NCI: A Snapshot of Pancreatic Cancer - Incidence and Mortality | View source |
| Endo GIA Staplers: 510 (k) k111825 | View source |
| Gore SeamGuard staple/suture reinforcement material 510 (k) k043056 | View source |
| ID | Term |
|---|---|
| D010190 | Pancreatic Neoplasms |
| D010192 | Pancreatic Pseudocyst |
| D007516 | Adenoma, Islet Cell |
| D007340 | Insulinoma |
| D010181 | Pancreatic Cyst |
| D003969 | Vipoma |
| D005935 | Glucagonoma |
| ID | Term |
|---|---|
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D004701 | Endocrine Gland Neoplasms |
| D004066 | Digestive System Diseases |
| D010182 | Pancreatic Diseases |
| D004700 | Endocrine System Diseases |
| D003560 | Cysts |
| D000236 | Adenoma |
| D009375 | Neoplasms, Glandular and Epithelial |
| D009370 | Neoplasms by Histologic Type |
| D018278 | Carcinoma, Neuroendocrine |
| D018358 | Neuroendocrine Tumors |
| D017599 | Neuroectodermal Tumors |
| D009373 | Neoplasms, Germ Cell and Embryonal |
| D000230 | Adenocarcinoma |
| D002277 | Carcinoma |
| D018273 | Carcinoma, Islet Cell |
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