Product Design
Review of Levulinic Acid (LA) HRRC Activity
Abstract
Includes two pages of handwritten notes regarding filter design and a summary of HRRC approval of levulinic acid testing and cigarette prototypes containing varying levels of LA from 1986 to 1990. Documents SED and consumer testing on cigarettes with levulinic acid, focus group testing of cigarettes with nicotine levulinate, studies involving "plasma nicotine and smoking behavior in smokers," human odor-sensitivity tests, and testing of cigarettes in "2-pack, monadic tests involving up to 500 smokers per cell of up to 6 cells." Notes that the "human odor-sensitivity tests with nicotine, LA, and nicotine-LA mixtures in the air," which was approved as a project in June 1987, was dropped. Similar to Bates #507863499.
Fields
- Hypothesis
- Use of filters, paper, and ventilationModification of tobacco products through use of filters, paper, and ventilation, and measuring effects on dependence, behavior, and toxicity.
- Nicotine transport, transfer, and uptake
Design changes which alter nicotine delivery or effect how the product causes and maintains dependence, including transfer of nicotine from tobacco to smoke, and uptake into the body.- Use of additives
Modification of tobacco products through use of additives and measuring effects on dependence, behavior, and toxicity. - Nicotine transport, transfer, and uptake
- Keyword
- Menthol
- STT
- Tar/Nicotine ratio (Nicotine/Tar Ratio or T/N ratio)
- Levulinate
- Animal testing
- R8816
- NFO panel
- Smoke nicotine levels
- NFO panel
- Smoke nicotine levels
- SED
- STT
- Additive
- Levulinic acid
- Sorbic acid
- Sodium hydroxide
- Sorbic acid
- Design Component
- Tobacco-based flavors
- Humectant
- Casing
- G7-1
- Nicotine content (Tobacco nicotine content)
Total nicotine in the unburnt tobacco rod- Adhesive
- Humectant
- Brand
- Camel (RJR)
- Now (RJR)
- Vantage (RJR)
- Winston (RJR)
- Now (RJR)
- Subject
- acids (additives)
- Levulinic Acid (Additives)
reduces the harshness of cigarettes - Levulinic Acid (Additives)
Document Images
04/24/91 Review of Levulinic Acid fLAZ HRRC Activity
(a:\hrrc9l\lahist.91w)
02/26/86 HRRC APPROVED W. R. Cook's request to do SED & consumer test on
cigts w/LA.
LA approved up to level of 2% by wt. of tobacco
BUT no other tests allowed until additional data obtained:
identities & concs. of lactones in LA supplies
long-term effects of LA on occurrence & growth rate of tumors in
"suitable animal model"
study of transfer of LA to smoke & study of effects of product
aging on transfer to smoke
Test was NFO panel (2-pack, blind, monadic -
FFLT pdt topdressed w/ 0, 0.6%, 1.0%, 1.4%, 2.0% LA.
FF pdt topdressed w/ 0, 0.45%, 0.75%, 1.05%, 1.50% LA.
Scientific Affairs opinion was that up to one pack per day of cigts w/
up to 2.0% LA by wt. could be tested.
01/09/87 HRRC APPROVED J. W. Lawson's request to do focus group testing of
cigts w/ L-nicotine levulinate, subject to the restriction that
a) smoke nicotine levels (FTC) must not exceed ca. 1.3 mg/cigt
and b) purity of nicotine levulinate must be assured.
Focus group participants to smoke one (1) cigarette of one of the
following types:
Brand % Application of Nic:La3
WUL-100
CL-85
N-85
t
1.0 3.0 5.0
1.0 3.0 5.0
3.0 7.0 10.0
Tar, nicotine and CO data for all pdts were supplied.

added to 1st test group.
11/90 Results from R9038 & R9038b used to ok test proposed in R9035.
02/26/91 HRRC APPROVED R9111 (J. C. Walker) to test human anosmics with
nicotine and LA such that subjects receive no more than 0.304 mg
LA/wk (concs. no higher than 1.47 ppm) and concs. of nicotine no
higher than 2.43 ppm.
03/14/91 HRRC APPROVED R9114 (H. H. Gordin). A standard test protocol to
be used with HRRC-approved prototypes. Includes Phase I: pre-test
questionnaires (may include SMQ, product consumption, DFC), Phase
II: smoking of 1 cigt, followed by completion of Body Map,
satisfaction scorecard, DFC ballot, Phase III: additional
questionnaires & DFC, Phase IV: smoke 1 cigt, complete final DFC
ballot.
03/14/91 HRRC approved R9115 (M. R. Savoca) to perform external QDA,
internal diagnostic, external; screening, external HSB, external
PGT (understood to mean exposure to, NOT MORE THAN 2 PACKS) on a
series of ca. 5 mg tar products containing up to 25% by weight of
G7-1 with up to 5.65% LA and or 4.0% KDN extract.
Approval limited to specific products.
Other tests specifically not approved.
04/09/91 HRRC APPROVED R9120 (J. H. Robinson) to perform 1-cigt plasma
nicotine study on WINSTON prototype containing 22.5% of G7-18
sheet with ca. 5.6% LA on sheet.

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04/15/87 HRRC APPROVED J. H. Robinson's proposal to study plasma nicotine
and smoking behavior in smokers on 2 occasions each, separated by
2 weeks. Cigarettes were ones described in J. Lawson's proposal
of 1/9/87. Smokers assigned to groups as follows:
Group 1 Group 2
Cigt 1 NOW-85 WUL-85
Cigt 2 NOW-85 w/ 10% WUL-85 w/ 5%
nic:La3 nic:La3
'Pyrolysis data of nic:La3 provided
AMES data on NOW-85 at 0, 3%, 7%, 10% nic:La3 and WUL-85 @ 0, 1%,
3%, 5% nic:La3 showed lowering of dose-response slope w/
increasing nic:La3.
06/09/87 HRRC APPROVED J. C. Walker's proposal to perform human odor-
sensitivity tests with nicotine, LA, and nicotine-LA mixtures in
air.
Max LA conc not to exceed 640 ug/L; max delivery of nicotine not
to exceed 1.3 mg.
PROJECT WAS DROPPED.
09/29/87 K. F. Cook's proposal to extend testing of LA to ULT, FFLT and FF
smokers was tabled.
10/27/87 HRRC APPROVED K. F. Cook's proposal to test cigarettes in 2-pack,
blind, monadic tests involving up to 500 smokers per cell of up
to 6 cells. ULT, & FFLT smokers to be tested.
Products to include NOW-85 (max LA level 14.2% or 69.34 mg/cigt)
and WUL-85 & 100's (max LA level 6.2% or 46.13 mg/cigt)
Total daily exposure sf smokers to LA limited to 69 mg/day as
`estimated by FTC method, and cigts limited to no more than 1.42
mg nic/cigt by FTC method.
10/11/88 HRRC APPROVED R8816 (T. A. Perfetti) to perform SED tests and
focus groups on pdts w/ 1% LA in VUL-85 configuration that also
contained 2.7% tob. nic. - BUT specifically disallowed use of
pdts containing Fagg's tobacco essence.
Product descriptions included summaries of materials properties
and indicated maximum expected tar and nicotine levels.
03/28/89 HRRC APPROVED R8910 (J. H. Robinson) to perform plasma nicotine
study of two XGT prototypes (CT01709E & F) described in R8816.

10/10/89 HRRC APPROVED R8933 (T. A. Perfetti) for SED QDA or diagnostic
testing after "warm-up" sessions with panelists. Focus group
testing approved with no pre- or post-placement. Two-pack monadic
testing not approved.
Products contained experimental G7 sheets with either LA,
nic:,La3, malic acid (MA), or nic:Ma2, at 25% by wt inclusion in
cigarettes.
01/23/90 HRRC APPROVED R9002 (J. H. Robinson) to perform plasma nicotine
study of 4, 50% air-diluted GTX prototypes described in R8933.
02/27/90 HRRC APPROVED R9006 (T. A. Perfetti) to perform focus groups with
no prior placement or other low-consumption SED tests with pdts
containing up to 10,000 ppm Ca or Na levulinates.
Approval for 2-pack tests of similar pdts deferred pending
results of plasma nicotine tests.
Data on thermal stability of Ca & Na salts requested (rec'd &
passed on to Scientific Affairs)
Need for 28-day inhalation test prior to market placement noted.
Scientific Affairs ok'd 1-cigt exposure in focus groups w/ no
pre-or post-placement.
Ames tests showed Na- & Ca-levulinates to be neither mutagenic
nor toxic. Condensate mutagenicity not affected by salts.
Complete smoke data on all prototypes
10/23/90 HRRC DEFERRED APPROVAL R9035 (M. F. Dube) to perform PGT test (2-
pack monadic) in 300 smokers until additional data available.
Specifically, LD50 of nic:La, plasma nic, test of multiple,
consecutive smokings, "tar" & nic data from actual mail-out
-products. Committee to meet 11/15/90 to review data.
10/31/90 HRRC APPROVED R9038 (J. H. Robinson) In "Study I" 12 volunteers
to smoke 4 each of products described by Dube (R9035) at 1/2 hr
intervals. 6 to smoke Product C (5.1 tar, 0.64 mg nic, 2.32%
LA3:Nicl. 6 to smoke Product E (5.3 mg tar, 0.83 mg nic, 3.27%
LA1:Nic1).
In "Study 2", ?st test group (3-5) employee volunteers provide AM
& PM blood samples for 3 days. Smoke ad lib reg brand on day 1;
day 2&3 smoke ad lib from up to 2 packs (total) Product C. 2nd
test group smokes ad lib from up to 2 packs of "C" 7 only fill
out questionnaires, re physiological and sensory responses.
10/31/90 HRRC APPROVED R9038b, in which addition of 24-hr urine sampling
