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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02153450
Other study ID # CASE4213
Secondary ID NCI-2014-01172CA
Status Completed
Phase Early Phase 1
First received
Last updated
Start date May 8, 2015
Est. completion date June 13, 2020

Study information

Verified date June 2020
Source Case Comprehensive Cancer Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This pilot clinical trial studies stereotactic radiosurgery and metformin hydrochloride in treating patients with pancreatic cancer that may be removed (borderline-resectable) or not removed by surgery. Stereotactic radiosurgery may be able to send x-rays directly to the tumor and cause less damage to normal tissue. Metformin hydrochloride, used for diabetes, may also kill cancer cells as demonstrated in laboratory studies. Giving stereotactic radiosurgery with metformin hydrochloride may kill more tumor cells.


Description:

This is an open label pilot, single-center, non-randomized trial is designed to evaluate the tolerability and preliminary activity of the combination of stereotactic body radiation therapy (SBRT) with metformin for resectable and locally-advanced pancreatic/periampullary cancers.

PRIMARY OBJECTIVES:

The primary objectives of this study are to:

1) To determine if the addition of metformin to SBRT adds minimal additional toxicity for patients with A). borderline-resectable or B). not surgically resectable pancreatic adenocarcinomas.

SECONDARY OBJECTIVES:

I. Evaluate the clinical/pathological response and resectability rates associated with these regimens.

OUTLINE:

Patients receive metformin hydrochloride orally (PO) daily or twice daily (BID) on days -11 to -1. Patients then undergo stereotactic radiosurgery 5 days a week for 5 weeks and receive concurrent metformin hydrochloride* by mouth, two times a day for 5 weeks. Patients undergo laparotomy on week 6 (or weeks 5-7). ). Systemic therapy continues as soon as it is considered feasible by the treating physicians.

*NOTE: Metformin hydrochloride should be stopped 2 days before laparotomy.

After completion of study treatment, patients are followed up every 3 months for 2 years.


Recruitment information / eligibility

Status Completed
Enrollment 8
Est. completion date June 13, 2020
Est. primary completion date August 3, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Subjects must be able to provide written informed consent

- Histologically and/or cytologically confirmed adenocarcinoma of the pancreas, clinical stage T1-4, N0-1, M0

- Eastern Cooperative Oncology Group (ECOG) performance status 0-2

- Hemoglobin = 9.0 g/dl

- Alkaline phosphatase < 3 x upper limit of normal (ULN)

- Albumin > 2.5 g/dL

- Absolute neutrophil count = 1500/mm^3

- Platelet count = 75,000/mm^3

- Total bilirubin < 1.5 x upper limit of normal (ULN)

- Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT]) = 2.5 x institutional upper limit of normal

- Alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) = 2.5 x institutional upper limit of normal

- Creatinine = 1.5

- Borderline-resectable or locally-advanced pancreatic cancer (based upon impression of the surgical oncologist, in conjunction with radiologic consultations) as defined per the Alliance consensus :

- Borderline-resectable

- An interface between the primary tumor and superior mesenteric vein (SMV)/portal vein measuring 180 degrees or greater of the circumference of the vein wall

- Short-segment occlusion of the SMV/portal vein but with suitable vessel proximal and distal to the obstruction to allow safe resection and reconstruction

- Short-segment interface (of any degree) between the tumor and the hepatic artery with normal artery proximal and distal to the interface that is amenable to resection and arterial reconstruction

- An interface between the tumor and the SMA or celiac trunk measuring less than 180 degrees of the circumference of the artery wall

- Not surgically resectable due to one or more of the following things

- Patient is not a surgical candidate due to medical comorbidities and/or poor performance status

- Patient elects not to undergo surgical therapy

- Patient has locally-advanced pancreatic cancer based on having one of the following:

- Encasement of the SMA/celiac artery (>180 degrees).

- Involvement of the SMV/portal vein without options for reconstruction.

- Aortic invasion or encasement.

- Women of child-bearing potential and men must agree to use adequate contraception (double barrier method of birth control or abstinence) 6 weeks prior to study entry, for the duration of study participation and for 6 months after completing treatment; should a woman become pregnant or suspect that she is pregnant while she or her partner is participating in this study, she should inform the treating physician immediately

- Patients previously treated with chemotherapy are eligible unless they have evidence of local or distant disease progression; patients must have completed their last cycle of chemotherapy at least two weeks prior to study enrollment

- Patients currently taking metformin are eligible for participation.

- Women of child-bearing potential and male patients who are sexually-active must agree to use effective methods of birth control throughout protocol treatment.

- Patients must not have poorly-controlled diarrhea (no more than 4 loose stools per day). Patients may be reconsidered for the study if the diarrhea resolves.

Exclusion Criteria:

- Evidence of gross duodenal invasion, gastric outlet obstruction

- Gastrointestinal perforation or intra-abdominal abscess (< 3 months); recent (< 3 months) gastrointestinal (GI) bleeding from gastric or duodenal ulcer

- Systemic collagen vascular disease including scleroderma or systemic lupus erythematosus (SLE); rheumatoid arthritis is eligible

- Serious active infection requiring intravenous (IV) antibiotics

- Conditions leading to inadequate gastrointestinal tract absorption as determined by the treating physician and/or investigator

- Patients with uncontrolled intercurrent illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements

- Poorly-controlled diarrhea (> 4 loose bowel movement [BM]/day without use of anti-motility agents) within 7 days of study enrollment; patients may be reconsidered for the study if the diarrhea resolves

- Comorbid conditions that, in the opinion of the investigator, would complicate safety or compliance such as known human immunodeficiency virus (HIV) or current substance abuse

- Patients who are pregnant or lactating

- Patients who are unwilling or unable to comply with study and/or follow-up procedures

- Treatment for other carcinomas within the last two years, except cured non-melanoma skin cancer, curatively treated in-situ cervical cancer, or localized prostate cancer with stable prostate-specific antigen (PSA)

- Multi-focal pancreatic lesions concerning for cancer.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
metformin hydrochloride
Given PO
Radiation:
stereotactic radiosurgery
Undergo stereotactic radiosurgery

Locations

Country Name City State
United States University Hospitals Cleveland Medical Center, Seidman Cancer Center, Case Comprehensive Cancer Center Cleveland Ohio

Sponsors (2)

Lead Sponsor Collaborator
Case Comprehensive Cancer Center National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Dose-limiting toxicity (DLT) rate scored according to the National Cancer Institute Common Toxicity Criteria version 4 The rate of DLT for each treatment group will be estimated based on the number of incidences using a binomial distribution and its confidence intervals will be estimated using Wilson's method. The factors associated with DLT will be identified using logistic regression using forward model selection procedure Up to 21 days post-treatment
Secondary Clinical response rate using the revised Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 Using a binomial distribution and its confidence intervals will be estimated using Wilson's method. Up to 2 years
Secondary Progression-free survival using the revised RECIST version 1.1 The factors associated with progression-free survival will be identified using logistic regression using forward model selection procedure. Time from start of treatment to time of progression or death, whichever occurs first, assessed up to 2 years
Secondary Overall survival The probability of overall survival along with median survival for each treatment group will be estimated using Kaplan-Meier method. Up to 2 years
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