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Trial record 1 of 1 for:    NCT03047837
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A Randomized, 2x2 Factorial Design Biomarker Prevention Trial of Low-dose Aspirin and Metformin in Stage I-III Colorectal Cancer Patients. (ASAMET)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03047837
Recruitment Status : Unknown
Verified February 2019 by Andrea DeCensi, Ente Ospedaliero Ospedali Galliera.
Recruitment status was:  Recruiting
First Posted : February 9, 2017
Last Update Posted : February 15, 2019
Information provided by (Responsible Party):
Andrea DeCensi, Ente Ospedaliero Ospedali Galliera

Brief Summary:

Epidemiological studies and cardiovascular prevention trials have shown that low-dose aspirin (ASA) can inhibit colorectal cancer (CRC) incidence and mortality, including inhibition of distant metastases. Metformin (MET) has also been associated with decreased CRC incidence and mortality in meta-analyses of epidemiological studies in diabetics and has been shown to decrease by 40% colorectal adenoma recurrence in a randomized trial. Recent studies have shown that ASA is an inhibitor of mTOR/S6K1 and an activator of AMPK, targeting regulators of intracellular energy homeostasis and metabolism, and that the combination of ASA and MET, another AMPK activator and S6K1 inhibitor, has a striking additive effect on AMPK activation and mTOR inhibition, with increased autophagy and decreased cell growth in CRC cell lines. While both drugs are being tested as single agents, their combination has not been tested in trials.

This is a randomized, placebo-controlled, double blind, 2x2 biomarker trial of ASA and MET to test the activity of either agent alone and the potential synergism of their combination on a set of surrogate biomarkers of colorectal carcinogenesis. After surgery 160 patients with stage I-III colon cancer will randomly be assigned in a four-arm trial to either ASA, 100 mg day, MET 850 mg bid, their combination, or placebo for one year. The primary endpoint biomarker is the change, defined as the difference between pre- and post-treatment expression of nuclear factor kappa-B (NFκB), in the unaffected mucosa of proximal and distal colon obtained by multiple biopsies in two paired colonoscopies one year apart. Additional biomarkers will include: 1) the genomic profile of candidate genes, pathways, and overall genomic patterns in tissue biopsies by genome wide gene expression arrays; 2) the IHC expression of tissue pS6K, p53, beta-catenin, PI3K; 3) the associations of mutations and SNPs with treatment response by next generation sequencing of primary tumors; 4) the measurement of circulating IL-6, CRP and VEGF and 5) plasma and colonic MET concentrations and their correlation with biomarker profiles.

Condition or disease Intervention/treatment Phase
Tertiary Prevention in Colon Cancer Drug: Aspirin (ASA) + Metformin (MET) Drug: ASA Drug: MET Drug: Placebos Phase 2

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 160 participants
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: A Randomized, Phase II, Double-blind, Placebo-controlled, Multicenter, 2x2 Factorial Design Biomarker Tertiary Prevention Trial of Low-dose Aspirin and Metformin in Stage I-III Colorectal Cancer Patients. The ASAMET Trial
Actual Study Start Date : March 15, 2017
Estimated Primary Completion Date : September 15, 2019
Estimated Study Completion Date : March 15, 2020

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Placebo Comparator: Arm A
placebo Aspirin (1 tablet daily) + placebo Metformin (1 tablet BID)
Drug: Placebos
Arm A (control arm) Treatment: placebo ASA + placebo MET Doses: 1 tablet daily +1 tablet twice a day (BID) Duration: 12 months

Experimental: Arm B
placebo Aspirin (1 tablet daily) + active Metformin (850 mg, 1 tablet BID)
Drug: MET
Arm B (experimental arm) Treatment: placebo ASA + active MET Dose: 1 tablet daily+ 850 mg, 1 tablet twice a day (BID) Duration: 12 months
Other Name: Metformin

Experimental: Arm C
active Aspirin (100 mg, 1 tablet daily) + placebo Metformin (1 tablet BID)
Drug: ASA
Arm C (experimental arm) Treatment: active ASA + placebo MET Dose: 100 mg, 1 tablet daily + 1 tablet twice a day (BID) Duration: 12 months
Other Name: Cardioaspirin

Experimental: Arm D
active Asprin (100 mg, 1 tablet daily) + active Metformin (850 mg, 1 tablet BID)
Drug: Aspirin (ASA) + Metformin (MET)
Arm D (experimental arm) Treatment: active ASA + active MET Dose: 100 mg, 1 tablet daily + 850 mg,1 tablet twice a day (BID) Duration: 12 months
Other Names:
  • Cardioaspirin
  • Metformin

Primary Outcome Measures :
  1. NFκB [ Time Frame: 1 year ]
    It will be measured the change, defined as the difference between post- and pre-treatment levels, in NFκB expression in normal colonic tissue. The NFκB transcription factor family is composed of the p65, RelB, c-Rel, p105, andt p100 subunits, and activation of the NFκB pathway is defined by the nuclear translocation of the p65 subunit. Therefore, cytoplasmic and nuclear localization of p65 will be immunohistochemically assessed as an indicator of NFκB activity. The analysis of expression will be performed by semi quantitative assessment: NFκB expression will be measured primarily as the percentage of positive nuclear areas for NFkB over the total nuclear areas in 10 section fields.

Secondary Outcome Measures :
  1. pS6K, p53, beta-catenin, PI3K [ Time Frame: 1 year ]
    It will be measured the change (defined as above) in IHC expression levels of pS6K, p53, beta-catenin, PI3K (from colon unaffected biopsy specimen). These biomarkers will be measured as described above for NFκB.

  2. IL-6, CRP, VEGF and HOMA index [ Time Frame: 1 year ]
    The change in circulating biomarkers IL-6, CRP, VEGF and HOMA index[homeostasis model assessment (fasting blood glucose (mmol/L)*insulin (mU/L))/22.5] will be measured in plasma and serum at two time points, pre- and post-intervention, using monoclonal ELISA kits.

  3. Gene expression levels [ Time Frame: 1 year ]
    Gene expression levels of candidate genes and pathways, in normal colonic tissue, will be measured on a genome-wide basis using Illumina HumanHT-12 Expression BeadChips targeting more than 47,000 transcripts including known splice variants across the human transcriptome.

  4. Metformin concentration [ Time Frame: 1 Year ]
    The blood and tissue MET levels will be measured. LC-MS/MS system will be used for the drug level determinations to be correlated with biomarker modulation and toxicity

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients aged > 18 and ≤ 80 years.
  • Patients with completely resected stage I, II, or III primary colorectal cancer within 24 months prior to randomization, regardless of (neo-)adjuvant chemotherapy. Patients with pT1 CRC treated with endoscopic polypectomy.
  • Adjuvant chemotherapy and (neo-)adjuvant radiotherapy terminated at least 3 months before randomization.
  • ECOG performance status ≤ 1.
  • Satisfactory hematological and biochemical functions:

    • Platelets ≥ 100 x 10^9/L
    • Creatinine clearance estimated with the Cockcroft - Gault formula ≥ 60 mL/min. Patients with Gault formula ≥ 45-59 ≤ ml/min are eligible but they will receive a single (evening) tablet of MET, 850 mg.
    • AST and ALT ≤ 2.5 times ULN.
  • Females of childbearing potential/males with partners of childbearing potential participating in the study are to use effective methods of birth control during study participation. Female participants must provide a pregnancy test, according to local/national guidelines.
  • Able to understand and sign an informed consent (or have a legal representative who is able and willing to do so).

Exclusion Criteria:

  • Patients who are not able to undergo colonoscopy.
  • Patients who are allergic or intolerant to ibuprofen or naproxen,or who have MET-, or ASA-, or salicylate intolerance or more generalized drug intolerance to non-steroidal anti-inflammatory drugs (NSAIDs).
  • Any serious medical condition, laboratory abnormality, or psychiatric illness that would prevent the patient from signing or participating in the study and/or comply with study procedures.
  • Chronic treatment with ASA or other NSAIDs or MET or patients who are on current long term treatment (≥ 4 consecutive weeks) with ASA, NSAID or COX -2 inhibitors or MET.
  • Diabetic patients on drug treatment are excluded.
  • Anticoagulant therapy (dicumarol, heparin, fondaparinux, apixaban, dabigatran etexilate, rivaroxaban) or active current treatment with antiplatelet agents (e.g. off-study ASA, clopidogrel, prasugrel, ticagrelor, or ticlopidine).
  • Any other invasive malignancies (with the exclusion of basal cell carcinoma or cutaneous squamous cell carcinoma) diagnosed during the last 5 years before randomization. Past history of any other invasive CRC than the one the patient is currently being treated for
  • Alcohol or drug abuse.
  • Prior history of gastro-intestinal bleeding or hemorrhagic diathesis (e.g. hemophilia).
  • Erosive-ulcerative lesions in the gastrointestinal tract.
  • History of erosive GERD or active erosive GERD on gastroscopy.
  • Concomitant corticosteroid treatment.
  • Known deficiency of glucose-6-phosphate dehydrogenase (G6PD).
  • Treatment with another investigational drug < 28 days prior to study entry.
  • Concurrent participation in a clinical trial with the same endpoints.
  • History of hemorrhagic stroke.
  • Lynch Syndrome (HNPCC).
  • Crohn's disease (CD) and Ulcerative Colitis (UC).
  • Pregnant or lactating females.
  • History of lactic acidosis.
  • Liver dysfunction including chronic active hepatitis and cirrhosis not compensated.
  • History of vitamin B12 deficiency or megaloblastic anemia.
  • Uncontrolled coronary syndrome or symptomatic congestive heart failure (e.g. Class III or IV New York Heart Association's Functional Classification).
  • Inability or unwillingness to swallow tablets.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03047837

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Contact: Alessandra Argusti, PhD 00390105634188
Contact: Silvia Caviglia, M.Sc 00390105634511

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Medical Oncology Ente Ospedaliero Ospedali Galliera Recruiting
Genova, Italy, 16128
Contact: Andrea De Censi, MD    +39010 5634501   
Contact: Marilena Petrera, PhD    00390105634580   
Sponsors and Collaborators
Ente Ospedaliero Ospedali Galliera
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Principal Investigator: Andrea De Censi, MD E.O. Ospedali Galliera
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Andrea DeCensi, Principal Investigator, Ente Ospedaliero Ospedali Galliera Identifier: NCT03047837    
Other Study ID Numbers: 27UCS2015
2015-004824-77 ( EudraCT Number )
First Posted: February 9, 2017    Key Record Dates
Last Update Posted: February 15, 2019
Last Verified: February 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Andrea DeCensi, Ente Ospedaliero Ospedali Galliera:
Colorectal cancer
Additional relevant MeSH terms:
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Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases
Gastrointestinal Diseases
Colonic Diseases
Intestinal Diseases
Rectal Diseases
Hypoglycemic Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Anti-Inflammatory Agents
Antirheumatic Agents
Fibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action
Platelet Aggregation Inhibitors
Cyclooxygenase Inhibitors
Enzyme Inhibitors