Neoplasms

Urinary Tract, Sexual Organs, and Pregnancy Conditions

All Conditions

Digestive System Diseases

Rare Diseases

Urinary Bladder Neoplasms

Gallbladder Neoplasms

Urologic Neoplasms

Urogenital Neoplasms

Urogenital Diseases

Female Urogenital Diseases

Pregnancy Complications

Female Urogenital Diseases and Pregnancy Complications

Urinary Bladder Diseases

Urologic Diseases

Male Urogenital Diseases

Biliary Tract Neoplasms

Gastrointestinal Neoplasms

Digestive System Neoplasms

Biliary Tract Diseases

Gastrointestinal Diseases

Gallbladder Diseases

Gallbladder Cancer

Antineoplastic Agents

All Drugs and Chemicals

Gemcitabine

Cisplatin

Antimetabolites

Post staging laparoscopy, all patients will receive chemotherapy using Injection Gemcitabine 1000 mg/m2 delivered day 1 and 8 every 3 weeks.

In addition, Injection Cisplatin 25 mg/m2 for and 4 cycles week 1 to week 11.

Post staging laparoscopy in Experimental arm The radiation dose will be 50-55 Gy/ 25 fractions to the gross disease and 45 Gy/ 25 fractions to suspected microscopic disease along with weekly gemcitabine (300 mg/ m2). Radiotherapy will be for 5 weeks which will be followed by 2 cycles of chemotherapy with Injection Gemcitabine (Gemcite,Gemzar) 1000 mg/m2 delivered day 1 and 8 every 3 weeks and cisplatin (Cisplat, Cytoplatin) 25 mg/m2from week 7 to week 11.

During week 12-13 patients will undergo repeat PETCECT scan. If the scan shows partial or good response then patients will be evaluated for surgery. Surgery if possible will be done between weeks 13-15. In case of inoperable disease patients will receive further chemotherapy

Those randomized to systemic chemotherapy alone will proceed to receive Chemotherapy Gemcitabine gemcitabine 1000 mg/m2delivered day 1 and 8 every 3 weeks for 4 cycles

Inj. cisplatin 25 mg/m2 delivered. day 1 and 8 every 3 weeks for 4 cycles

Radiotherapy will be for 5 weeks and will be given only in the study arm. The radiation dose will be 50-55 Gy/ 25 fractions to the gross disease and 45 Gy/ 25 fractions to suspected microscopic disease along with weekly gemcitabine (300 mg/ m2).

Chemoradiation

All the patients will undergo PETCECT to rule out metastatic disease

PETCECT

Patients will be subjected to staging laparoscopy with 16b1 lymph node biopsy to rule out metastatic disease.

Laparoscopy

Reena Engineer, MBBS MD

Mahesh Goel, MBBS MS

Reena Engineer, MD

ShyamKishore Shrivastava, MD

Locally advanced Gall bladders cancers not amenable for curative resection are often treated with chemotherapy alone which is the current standard of care. Randomized trials have shown survival benefit with combination chemotherapy in gallbladder cancers. Gallbladder cancer is not common western world and thus there is lack of evidence regarding the impact of neoadjuvant or concurrent chemo-radiation in this cancer.Use of neoadjuvant treatment with chemotherapy alone or chemoradiotherapy has shown to downsize these tumors to safely undergo R0 resection in few published studies. Also if the patients develop distant metastasis during this neoadjuvant therapy they can be spared of unnecessary surgery.

In a pilot study of 28 patients by Engineer et al conducted at Tata Memorial centre treated with neoadjuvant concurrent chemoradiation the investigators could achieve R0 resectability rate 0f 47% with a median overall survival (OAS) and progression free survival (PFS) of 35 and 20 months for the patients undergoing R0 resection.

In this study the investigators intend to compare the effects of using neoadjuvant chemotherapy alone vs. neoadjuvant chemoradiation and chemotherapy for locally advanced gall bladder cancers in terms of down staging and overall survival.

Introduction:

Adenocarcinoma of the gallbladder (GBCA) is the most common malignancy of the biliary tract and its incidence is alarmingly high in the Indian subcontinent. Complete surgical excision is the standard of care for both gallbladder and pancreatic cancers. Unfortunately, majority of these cancers are diagnosed at an advanced, inoperable stage and only 10-30% of the patient present with resectable disease.

Gall bladder cancers which are T3/T4 with liver infiltration, with or without visceral/vascular infiltration or having large local lymph node metastases; in the absence of distant metastases are generally considered as locally advanced. There prognosis in terms of resectability and survival remains dismal in most of the reports.

Even with aggressive surgery like extrahepatic bile duct resection or pancreaticoduodenectomy the 5 year survival rate for stage III disease ranges 30% to 42% in best of the reports. But these results are often not reproducible.

Locally advanced Gall bladders cancers not amenable for curative resection are often treated with chemotherapy alone which is the current standard of care. Randomized trials have shown survival benefit with combination chemotherapy in gallbladder cancers. In a randomized trial combination chemotherapy of Gemcitabine and cisplatin was superior to Gemcitabine chemotherapy alone and local tumor response in terms of partial downsizing or stable disease was achieved in 81% of cases. With Gemcitabine and Cisplatin based Neoadjuvant chemotherapy (NACT) some locally advanced GB cancers do get downstaged to undergo resection. Recent publication from Tata Memorial Centre, where NACT alone was given which resulted in surgical resection rate of 43% median OAS and PFS being 13 months and 8 months.

Study methodology:

All patients with diagnosis of non metastatic locally advanced Gall bladder cancers who fulfill the study eligibility criteria will be evaluated for study participation and will undergo Positron emission tomography and contrast enhanced computerized tomography (PETCECT) scan and staging laparoscopy to rule out metastatic disease. Patients will undergo upfront randomization into one of the study arms.

A proportion of patients are expected to have jaundice or cholangitis at presentation. At study inclusion there should be no clinical evidence of active cholangitis or unresolved biliary obstruction. Liver Function Tests, Renal Function Tests and CA 19-9 within 4 weeks of treatment initiation.

Systemic Chemotherapy arm (Standard Arm or Arm A)

Those randomized to NACT will proceed to receive systemic gemcitabine 1000 mg/m2delivered day 1 and 8 every 3 weeks and cisplatin 25 mg/m2 for and 4 cycles (week 1- week 11).

Chemoradiation arm (Study Arm or Arm B)

The radiation dose will be 50-55 Gy/ 25 fractions to the gross disease and 45 Gy/ 25 fractions to suspected microscopic disease along with weekly gemcitabine (300 mg/ m2). Radiotherapy will be for 5 weeks which will be followed by 2 cycles of chemotherapy (week 7 to week 11)

These radiotherapy (RT) doses have found to be safe in the investigators pilot study.

During week 12-13 patients will undergo repeat PETCECT scan. If the scan shows partial or good response then patients will be evaluated for surgery. Surgery if possible will be done between weeks 13-15. In case of inoperable disease patients will receive further chemotherapy. With locally progressive/systemic disease on chemotherapy patients may be considered for second line palliative chemotherapy or best supportive care. The use of radical dose chemoradiation is not allowed on disease progression in the systemic chemotherapy arm. However palliative radiation may be used.

Surgery

Surgical procedure will be en-bloc resection including cholecystectomy with a liver wedge excision and periportal lymph node clearance. Nodal clearance from station number 8, 12, 13 with sampling of inter aortocaval node will be done. Extrahepatic biliary excision or additional organ excision will be done as per the discretion of operating surgeon.

Post Surgery all patients will receive additional adjuvant chemotherapy

Number of patients enrolled: Screened 350 Enrolled 314

Perioperative Therapy Preoperative Chemotherapy Versus Chemoradiotherapy in Locally Advanced Gall Bladder Cancers

To compare the Overall survival between the patients treated with neoadjuvant chemotherapy alone vs. patients treated with neoadjuvant chemoradiation. Overall survival will be calculated from the date of randomization to the date of death

R0 surgical resection rate would be compared in patients who undergo complete resection.

Progression free survival between the two groups. survival will be calculated from the date of randomization to the date of progression whether local or distal.

Adverse events are assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Adverse events are considered to be related to treatment if the Investigator deems them to be either possibly, probably, or definitely related to treatment Acute toxicities will be measured within 12 weeks of completeion of neoadjuvant Radiotherapy or Chemotherapy

QOL questionnaires will be applied to patients at baseline and every 12 weeks for a maximum of 12 months. The secondary endpoint will be analysed at the end of the study. FACT (Functional Assessment of Cancer Therapy) -Hep (Hepatic) version 4 will be used to assess quality of life for all patients. It will be assessed at baseline then at the completion of neoadjuvant treatment thereafter 3 monthly at every follow up

Spots Global Cancer Trial Database for gall bladder cancers