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  1. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 45

    Meta-analysis study to establish population level estimates of NNAL in smokers and non-smokers

    AYALA-FIERRO F.(1); VERRON T.(2); LIZHNYAK P.(3); FREELAND R.(4); FROST-PINEDA K.(4); ELAMIN A.(5); PRASAD G.L.(4); SARKAR M.(3)
    (1) Juul Labs, Inc, U.S.A.; (2) Imperial Brands, U.K.; (3) Altria Client Services, U.S.A.; (4) RAI Services Company, U.S.A.; (5) Philips Morris International, Switzerland
    The purpose of this research (a project of the CORESTA Biomarkers Sub-Group) was to establish a population level estimate for the biomarker of cigarette smoke exposure, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), to serve as a baseline...
  2. TSRC, Tob. Sci. Res. Conf., 2021, 74, abstr. 14

    Extractables testing plan for an improved data collection needed for effective risk assessment in electronic nicotine delivery systems

    CHEVVA H.; AYALA-FIERRO F.; HIRAKI B.; FORD K.; COOK D.
    JUUL Labs, San Francisco, CA, USA
    Extractables & Leachables (E&L) studies evaluate the likelihood of product contacting-materials to leach unwanted substances into consumer products including pharmaceuticals, food, medical devices and electronic nicotine delivery systems...
  3. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 45

    Meta-analysis of two biomarkers of exposure of tobacco products

    AYALA-FIERRO F.(1); ELAMIN A.(2); FROST-PINEDA K.(3); JIN T.(3); PRASAD G.L.(3); SARKAR M.(4); SCHMIDT E.(3); VERRON T.(5)
    (1) ITG Brands LLC, Greensboro, NC, U.S.A.; (2) PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland; (3) RAI Services Company, Winston-Salem, NC, U.S.A.; (4) Altria Client Services LLC, Richmond, VA, U.S.A.; (5) SEITA - Imperial Brands, Paris, France
    In the context of tobacco products, broadly two types of biomarkers exist, biomarkers of exposure (BoE) and biomarkers of potential harm (BoPH). BoE measure exposure to tobacco constituents, e.g. carbon monoxide (CO) and nicotine equivalents (NEQs)....
  4. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 33

    Quantitative risk assessment (QRA) indicates reduced risk potential for carcinogenic and non-carcinogenic effects of the aerosol of the next generation products (NGPs) compared to reference cigarettes

    AYALA-FIERRO F.(1); CZEKALA L.(2); SIMMS L.(2); RUDD K.(2); CAVA G.(2); STEVENSON M.(2)
    (1) ITG Brands LLC, Greensboro, NC, U.S.A.; (2) Imperial Brands PLC, Bristol, U.K.
    In order to understand the potential relative health risks of NGPs compared to cigarettes, we compared the relative risks of aerosols from tobacco-containing and tobacco-free NGPs to the smoke generated from a reference cigarette. Quantitative Risk...
  10. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 29 (also presented at TSRC 2017)

    Impact of cigar physical variability on cigar exposure using probabilistic risk assessment

    AYALA-FIERRO F.; KOSARAJU K.; STEVENS R.
    ITG Brands LLC, Greensboro, NC, U.S.A.
    Cigars are unique tobacco products of wide variety of sizes: length, diameter and weight, and include large cigars, small cigars (cigarette-like) and cigarillos. The weight of cigars can range widely which influences exposure to cigar constituents,...