Metformin and 5-fluorouracil for Refractory Colorectal Cancer.

Overview[ - collapse ][ - ]

Purpose This is a phase II trial to evaluate efficacy and safety of Metformin and Fluorouracil in patients with metastatic colorectal cancer (CRC) who have progressed after Oxaliplatin and Irinotecan based chemotherapy.
ConditionMetastatic Colorectal Cancer
InterventionDrug: Metformin and Fluorouracil
PhasePhase 2
SponsorInstituto do Cancer do Estado de São Paulo
Responsible PartyInstituto do Cancer do Estado de São Paulo
ClinicalTrials.gov IdentifierNCT01941953
First ReceivedSeptember 4, 2013
Last UpdatedSeptember 10, 2013
Last verifiedSeptember 2013

Tracking Information[ + expand ][ + ]

First Received DateSeptember 4, 2013
Last Updated DateSeptember 10, 2013
Start DateNovember 2012
Estimated Primary Completion DateNovember 2015
Current Primary Outcome MeasuresDisease Control Rate according to RECIST 1.1 [Time Frame: From randomization of the first subject until the database cut-off approximately 12 months later (01Nov2012 up to 01Nov2015). Tumor assessed at 8 week intervals] [Designated as safety issue: No]
Current Secondary Outcome Measures
  • Progression-free Survival [Time Frame: From randomization of the first subject until the database cut-off approximately 12 months later (01Nov2012 up to 01Nov2015). Tumor assessed at 4 week intervals.] [Designated as safety issue: No]defined as time from randomization to death from any cause, or even radiological detection/or clinical of disease progression, increased CEA will not be considered isolated progression.
  • Overall Survival [Time Frame: From randomization of the first subject until the database cut-off approximately 12 months later (01Nov2012 up to 01Nov2015). Tumor assessed at 4 week intervals] [Designated as safety issue: No]defined as time from first dose of treatment until death, with date of last visit being considered censorship
  • Adverse Events [Time Frame: From randomization of the first subject until the database cut-off approximately 12 months later (01Nov2012 up to 01Nov2015). Tumor assessed at 4 week intervals.] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitleMetformin and 5-fluorouracil for Refractory Colorectal Cancer.
Official TitlePhase II Study of Metformin and 5-fluorouracil in Patients With Advanced Colorectal Cancer Previously Treated With Oxaliplatin and Irinotecan Based Chemotherapy.
Brief Summary
This is a phase II trial to evaluate efficacy and safety of Metformin and Fluorouracil in
patients with metastatic colorectal cancer (CRC) who have progressed after Oxaliplatin and
Irinotecan based chemotherapy.
Detailed Description
Primary Outcomes Measures:

- Disease control Rate at 8 weeks according to RECIST 1.1 (Tumor response was defined as the
percentage of patients with complete response, partial response or stable disease as best
overall response).

Secondary Outcome Measures:

- Progression-free Survival

- Overall Survival

- Adverse Events (assessed according to the Common Toxicity Criteria for Adverse Events
(CTCAE) version 4.0)
Study TypeInterventional
Study PhasePhase 2
Study DesignEndpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
ConditionMetastatic Colorectal Cancer
InterventionDrug: Metformin and Fluorouracil
metformin 850mg PO BID plus 5FU 425mg/m2 + leucovorin 50mg IV weekly
Study Arm (s)Experimental: Metformin and Flourouracil

Recruitment Information[ + expand ][ + ]

Recruitment StatusRecruiting
Estimated Enrollment45
Estimated Completion DateNovember 2015
Estimated Primary Completion DateNovember 2014
Eligibility Criteria
Inclusion Criteria

- Histological diagnosis of metastatic colorectal adenocarcioma previously treated with
at least two lines of chemotherapy (oxaliplatin and irinotecan regimens) if mutated
KRAS or treated with at least 3 lines of chemotherapy (oxaliplatin, irinotecan and
cetuximab) if KRAS wild type.

- Disease progression according to radiological or clinical assessment.

- Measurable disease.

- ECOG Performance 0-1.

- Age above 16 years.

- Normal organic function as defined for the following criteria:

- Aspartate aminotransferase (AST), alanine aminotransferase (ALT) ≤ 2.5 times the
upper normal limit of the local laboratory (LSN-LL);

- Total serum bilirubin ≤ 2.0 x ULN-LL;

- Absolute neutrophil count ≥ 1,500 / mm3;

- Platelet count ≥ 100,000 / mm3;

- Hemoglobin ≥ 8.0 g / dl;

- Serum creatinine ≤ 1.5 x ULN-LL

- Written informed consent before enrollment

Exclusion Criteria

- Diabetic patients taking metformin.

- Patients already treated with mTOR inhibitors.

- Hypersensitivity to metformin, renal or hepatic impairment or other conditions that
predispose to lactic acidosis.

- History of acute myocardial infarction in the last 6 months

- Serious illness or psychiatric condition.

- Current participation in other protocols with experimental drugs.

- Suspicion of dihidropirimida dehydrogenase(DPD)deficiency.

- Presence of active infection.

- No ability to ingest food orally.

- Patients with metastatic disease to CNS.

- Patients who underwent major surgery in the last 4 weeks.

- Patients who received chemotherapy in the last three weeks.

- Patients who underwent radiotherapy in the last 2 weeks or who received radiotherapy
in the target lesion, if this is the only target lesion.

- Patients using oral anticoagulation (warfarin).

- Pregnant or lactating patients
GenderBoth
Ages16 Years
Accepts Healthy VolunteersNo
ContactsContact: Vanessa C Miranda, MD
+551138932686
Location CountriesBrazil

Administrative Information[ + expand ][ + ]

NCT Number NCT01941953
Other Study ID NumbersNP 273/12
Has Data Monitoring CommitteeNo
Information Provided ByInstituto do Cancer do Estado de São Paulo
Study SponsorInstituto do Cancer do Estado de São Paulo
CollaboratorsNot Provided
Investigators Not Provided
Verification DateSeptember 2013

Locations[ + expand ][ + ]

Instituto Do Cancer Do Estado de São Paulo
Sao Paulo, Brazil, 01246-000
Contact: Vanessa C Miranda, MD | +551138932686 | vamedabc@yahoo.com.br
Principal Investigator: Vanessa C Miranda, MD
Recruiting