[Federal Register: October 23, 2009 (Volume 74, Number 204)]
[
Notices]               
[Page 54821-54823]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23oc09-45]                         

=======================================================================

-----------------------------------------------------------------------



DEPARTMENT OF HEALTH AND HUMAN SERVICES



 
National Toxicology Program (NTP); Office of Liaison, Policy and 

Review; Meeting of the NTP Board of Scientific Counselors



AGENCY: National Institute of Environmental Health Sciences (NIEHS), 

National Institutes of Health, HHS.



ACTION: Meeting announcement and request for comments.



-----------------------------------------------------------------------



SUMMARY: Pursuant to Public Law 92-463, notice is hereby given of a 

meeting of the NTP Board of Scientific Counselors (BSC). The BSC is a 

Federally chartered, external advisory group composed of scientists 

from the public and private sectors that provides primary scientific 

oversight to the NTP Director and evaluates the scientific merit of the 

NTP's intramural and collaborative programs.



DATES: The BSC meeting will be held on December 9-10, 2009. The 

deadline for submission of written comments is November 25, 2009, and 

for pre-registration to attend the meeting, including registering to 

present oral comments, is December 2, 2009. Persons needing 

interpreting services in order to attend should contact 301-402-8180 

(voice) or 301-435-1908 (TTY). For other accommodations while on the 

NIEHS campus, contact 919-541-2475 or e-mail niehsoeeo@niehs.nih.gov. 

Requests should be made at least 7 business days in advance of the 

event.



ADDRESSES: The BSC meeting will be held in the Rodbell Auditorium, Rall 

Building at the NIEHS, 111 T.W. Alexander Drive, Research Triangle 

Park, NC 27709. Public comments on all agenda topics and any other 

correspondence should be submitted to Dr. Barbara Shane, Executive 

Secretary for the BSC, NTP Office of Liaison, Policy and Review, NIEHS, 

P.O. Box 12233, K2-03, Research Triangle Park, NC 27709; telephone: 

919-541-4253; fax: 919-541-0295; e-mail: shane@niehs.nih.gov. Courier 

address: NIEHS, 530 Davis Drive, Room K2138, Morrisville, NC 27560.



FOR FURTHER INFORMATION CONTACT: Dr. Barbara Shane (telephone: 919-541-

4253 or e-mail: shane@niehs.nih.gov).



SUPPLEMENTARY INFORMATION:



Preliminary Agenda Topics and Availability of Meeting Materials



     Report of the NTP Director.

     NTP Update.

     NTP Testing Program: Nominations and proposed research 

projects on Butterbur, Evening primrose oil, Hydroquinone, Silica 

flour, and Valerian extracts and oil.

     Review of the NTP Host Susceptibility Program.

     NTP's Use of Contracts in the Testing Program.

     Concept Contract Review for Chemistry Services to the NTP.

     Concept Contract Review for NTP Reproductive and 

Developmental Toxicology and Perinatal Carcinogenicity Studies.

     NTP Evaluation Process.

     Update from the Center for the Evaluation of Risks to 

Human Reproduction.

     NTP's Dietary Supplements and Herbal Medicines Initiative.

    The preliminary agenda, roster of BSC members and ad hoc reviewers, 

background materials for agenda topics, public comments, and any 

additional information, when available, will be posted on the BSC 

meeting Web site (http://ntp.niehs.nih.gov/go/165) or may be requested 

in hardcopy from the Executive Secretary for the BSC (see ADDRESSES 

above). Updates to the agenda will also be posted to this site. 

Following the meeting, summary minutes will be prepared and made 

available on the BSC meeting Web site.



NTP Testing Program: Nominations and Proposed Research Projects



    The NTP actively seeks to identify and select for study chemicals 

and other substances for which sufficient information is not available 

to adequately evaluate potential human health hazards. The NTP 

accomplishes this goal through a formal, open nomination and selection 

process. Substances considered appropriate for study generally fall 

into two broad, yet overlapping categories: (1) Substances judged to 

have high concern as possible public health hazards based on the extent 

of human exposure and/or suspicion of toxicity and (2) substances for 

which toxicological data gaps exist and additional studies would aid in 

assessing potential human health risks, e.g., by facilitating cross-

species extrapolation or evaluating dose-response relationships. 

Nominations are subject to a multi-step, formal process of review 

before selections for testing are made and toxicological studies are 

designed and implemented. The nomination review and selection process 

is accomplished through the participation of representatives from the 

NIEHS, other Federal agencies represented on the Interagency Committee 

for Chemical Evaluation and Coordination (ICCEC)--the NTP Federal 

interagency review committee for NTP study nominations, the BSC, the 

NTP Executive Committee--the NTP Federal interagency policy body, and 

the public. The nomination review and selection process is described in 

further detail on the NTP Web site (http://ntp.niehs.nih.gov/, select 

``Nominations to the Testing Program'').

    Table 1 lists new nominations to be reviewed at the BSC meeting. 

Background documents for each nomination are available on the NTP Web 

site http://ntp.niehs.nih.gov/go/nom. The NTP invites interested 

parties to submit written comments, provide supplementary information, 

or present oral comments at the BSC meeting on the nominated substances 

and preliminary study recommendations (see ``Request for Comments'' 

below). The NTP welcomes toxicology study information from completed, 

ongoing, or anticipated studies, as well as information on current U.S. 

production levels, use or consumption patterns, human exposure, 

environmental occurrence, or public health concerns for any of the 

nominated substances. The NTP is interested in identifying appropriate 

animal and non-animal experimental models for mechanistic-based 

research, including genetically modified rodents and high-throughput in 

vitro test methods, and as such, solicits comments regarding the use of 

specific in vivo and in vitro experimental approaches to address 

questions relevant to the nominated substances and issues under 

consideration. Although the deadline



[[Page 54822]]



for submission of written comments to be considered at the BSC meeting 

is November 25, 2009 (see ``Request for Comments'' below), the NTP 

welcomes comments or additional information on these study nominations 

at any time.



         Table 1--Testing Recommendations for Substances Nominated to the NTP for Toxicological Studies

----------------------------------------------------------------------------------------------------------------

                                                                                            Preliminary study

         Substance [CAS No.]              Nomination source       Nomination rationale       recommendations

----------------------------------------------------------------------------------------------------------------

Butterbur (Petasites hybridus)         National Institute of    Use as a dietary         Comprehensive

 extract [90082-63-6].                  Environmental Health     supplement; lack of      toxicological

                                        Sciences\1\.             toxicological data;      characterization.

                                                                 suspicion of toxicity

                                                                 based on

                                                                 pharmacological

                                                                 activity of

                                                                 constituents;

                                                                 potential presence of

                                                                 toxic pyrrolizidine

                                                                 alkaloids.

Evening primrose oil (Oenothera        NIEHS..................  Use as a dietary         --Initial toxicological

 biennis L.) extract [90028-66-3].                               supplement,              characterization.

                                                                 particularly for        --Immunotoxicity

                                                                 immune conditions;       studies.

                                                                 lack of adequate        --Reproductive toxicity

                                                                 toxicological data.      studies.

Hydroquinone [123-31-9]..............  U.S. Food and Drug       Use in drugs and         --Dermal toxicity and

                                        Administration.          cosmetics; evidence of   carcinogenicity

                                                                 carcinogenicity from     studies.

                                                                 oral exposures in       --Reproductive toxicity

                                                                 prior NTP studies;       studies.

                                                                 insufficient

                                                                 toxicological data for

                                                                 regulatory hazard

                                                                 determination.

Silica flour [14808-60-7]............  Private Individual.....  Use in industrial and    --Initial toxicological

                                                                 consumer products;       characterization via

                                                                 inhalation exposures     oral and dermal routes

                                                                 associated with          of administration.

                                                                 autoimmune disease;     --Immunotoxicity

                                                                 lack of toxicity data    studies.

                                                                 for oral and dermal

                                                                 exposures;

                                                                 insufficient data to

                                                                 evaluate dose-response

                                                                 for renal and

                                                                 autoimmune effects by

                                                                 any route of exposure.

Valerian (Valeriana officinalis L.)    NIEHS..................  Use as a dietary         Comprehensive

 root extract [8057-49-6]; Valerian                              supplement; lack of      toxicological

 oil [8008-88-6].                                                toxicological data;      characterization.

                                                                 concern for adverse

                                                                 developmental and

                                                                 reproductive effects.

----------------------------------------------------------------------------------------------------------------

\1\ National Institute of Environmental Health Sciences (NIEHS).

\2\ The terms ``initial'' and ``comprehensive toxicological characterization'' in this table refer to the

  approximate scope of a research program to address toxicological data needs. The types of toxicological

  studies that would be considered by NTP staff during the conceptualization and design of a research program

  are:

 Initial toxicological characterization: biomolecular screening, in vitro mechanistic, in vitro and in

  vivo genotoxicity, absorption, disposition, metabolism, and elimination, and short-term repeat dose (2-4

  weeks) in vivo studies.

 Comprehensive toxicological characterization: all of the aforementioned plus subchronic toxicity (13-26

  weeks), chronic toxicity (1-2 years), carcinogenicity in conventional or genetically modified rodent models,

  organ systems toxicity (immunotoxicity, reproductive and developmental toxicity, neurotoxicity), in vivo

  mechanistic, toxicokinetics, and other special studies as appropriate (e.g., chemistry, toxicogenomics,

  phototoxicity).



    To facilitate review of proposed research projects by the BSC and 

the public, NTP staff developed a draft research concept document for 

each nomination recommended for study. A research concept is a brief 

document outlining the nomination or study rationale, and the 

significance, study approach, and expected outcome of a proposed 

research program tailored for each nomination. The purpose of these 

research concepts is to outline the general elements of a program of 

study that would address the specific issues that prompted the 

nomination and the preliminary study recommendations. A research 

concept may also encompass larger public health issues or topics in 

toxicology that could be appropriately addressed through studies on the 

nominated substance(s). Draft research concepts for the new nominations 

listed in Table 1 will be available on the BSC meeting page (http://

ntp.niehs.nih.gov/go/165) by October 26, 2009.



Attendance and Registration



    The meeting is scheduled for December 9-10, 2009, beginning at 8:30 

a.m. on each day and continuing to approximately 5 p.m. on December 9 

and on December 10 until adjournment. The meeting is open to the public 

with attendance limited only by the space available. Individuals who 

plan to attend are encouraged to register online at the BSC meeting Web 

site (http://ntp.niehs.nih.gov/go/165) by December 2, 2009, to 

facilitate planning for the meeting. The NTP is making plans to 

videocast the meeting through the Internet at http://www.niehs.nih.gov/

news/video/live.



Request for Comments



    Written comments submitted in response to this notice should be 

received by November 25, 2009. Comments will be posted on the BSC 

meeting Web site and persons submitting them will be identified by 

their name and affiliation and/or sponsoring organization, if 

applicable. Persons submitting written comments should include their 

name, affiliation (if applicable), phone, e-mail, and sponsoring 

organization (if any) with the document.

    Time will be allotted during the meeting for the public to present 

oral comments to the BSC on the agenda topics. Each organization is 

allowed one time slot per agenda topic. At least 7 minutes will be 

allotted to each speaker, and if time permits, may be extended to 10 

minutes at the discretion of the BSC chair. Persons wishing to present 

oral comments are encouraged to pre-register on the NTP meeting Web 

site. Registration for oral comments will also be available on-site, 

although time



[[Page 54823]]



allowed for presentation by on-site registrants may be less than that 

for pre-registered speakers and will be determined by the number of 

persons who register at the meeting.

    Persons registering to make oral comments are asked, if possible, 

to send a copy of their statement to the Executive Secretary for the 

BSC (see ADDRESSES above) by December 2, 2009, to enable review by the 

BSC prior to the meeting. Written statements can supplement and may 

expand the oral presentation. If registering on-site and reading from 

written text, please bring 40 copies of the statement for distribution 

to the BSC and NTP staff and to supplement the record.



Background Information on the NTP Board of Scientific Counselors



    The BSC is a technical advisory body comprised of scientists from 

the public and private sectors that provides primary scientific 

oversight to the NTP. Specifically, the BSC advises the NTP on matters 

of scientific program content, both present and future, and conducts 

periodic review of the program for the purpose of determining and 

advising on the scientific merit of its activities and their overall 

scientific quality. Its members are selected from recognized 

authorities knowledgeable in fields such as toxicology, pharmacology, 

pathology, biochemistry, epidemiology, risk assessment, carcinogenesis, 

mutagenesis, molecular biology, behavioral toxicology, neurotoxicology, 

immunotoxicology, reproductive toxicology or teratology, and 

biostatistics. Members serve overlapping terms of up to four years. BSC 

meetings are held annually or biannually.



    Dated: October 16, 2009.

John R. Bucher,

Associate Director, National Toxicology Program.

[FR Doc. E9-25587 Filed 10-22-09; 8:45 am]