350RESEARCH
PROJECTS
500TOTAL
INVESTIGATORS
9COUNTRIES
REPRESENTED
7,986TOTAL
ENROLLMENT
82,317SPECIMEN
ALIQUOTS
RESOURCES AT A GLANCE
OVERALL TOTAL ENROLLED
ALL-TIME ENROLLMENT1
7,986
FY25
265
TOTAL CHILDREN ENROLLED
5,828
FY25
168
TOTAL CBTN MEMBER SITES
TOTAL MOTHERS ENROLLED2
1,255
FY25
56
TOTAL FATHERS ENROLLED2
903
FY25
41
1 Subjects and Parents
2 CBTN consents children and biological relatives for participation. For patients, medical information about their brain tumor is collected, as well as biospecimens. For biological relatives, only saliva is collected.
* Note that CBTN Fiscal Year runs July-June
2 CBTN consents children and biological relatives for participation. For patients, medical information about their brain tumor is collected, as well as biospecimens. For biological relatives, only saliva is collected.
* Note that CBTN Fiscal Year runs July-June
BIOSPECIMENS
NUMBER OF COLLECTION EVENTS
ALL-TIME TOTAL
9,738
FY25
776
NUMBER OF TOTAL SPECIMEN ALIQUOTS (ONSITE)
ALL-TIME TOTAL
82,317
FY25
2,680
NUMBER OF TOTAL SPECIMEN ALIQUOTS (SHIPPED)
ALL-TIME TOTAL
21,065
FY25
368
Collection Events: These are the number of collections per day. Each collection can have multiple tubes.
Aliquot: An individual sample tube.
Aliquot: An individual sample tube.
SEQUENCING ELIGIBILITY, IMAGING, CELL LINES
TOTAL ALL TIME CLINICAL EVENTS
(ELIGIBLE FOR WGS/RNA-SEQ)
(ELIGIBLE FOR WGS/RNA-SEQ)
ALL-TIME TOTAL
544 WGS ELIGIBLE
2,149 SEQUENCED
2,149 SEQUENCED
1,656 RNA ELIGIBLE
2,173 SEQUENCED
2,173 SEQUENCED
FLYWHEEL
ALL-TIME TOTAL
29,119 SESSIONS
1,976 SUBJECTS
1,976 SUBJECTS
CELL LINES
ALL-TIME TOTAL
115
SCIENTIFIC PROJECTS3
SPECIMEN PROJECTS4
ALL-TIME TOTAL
170 APPROVED
148 DELIVERED
148 DELIVERED
FY25 TOTAL
13 APPROVED
9 DELIVERED
9 DELIVERED
DATA PROJECTS4
ALL-TIME TOTAL
276 APPROVED
209 DELIVERED
209 DELIVERED
FY25
15 APPROVED
15 DELIVERED
15 DELIVERED
3 Processed data is available anytime without request and has been utilized thousands of times. You can find more information on the data projects here.
4 Total vs. Approved project number differences may result from ongoing assessment of specimen and data requests by the CBTN Scientific Committee. Some requests could have been approved in a different fiscal year.
5 "Processed data" is available anytime without request and has been utilized thousands of times. You can find more information on the data projects here.
4 Total vs. Approved project number differences may result from ongoing assessment of specimen and data requests by the CBTN Scientific Committee. Some requests could have been approved in a different fiscal year.
5 "Processed data" is available anytime without request and has been utilized thousands of times. You can find more information on the data projects here.
POSTMORTEM DATA
POST-MORTEM
SUBJECTS
SUBJECTS
ALL-TIME TOTAL
508
POST-MORTEM
WGS/RNA SEQ
WGS/RNA SEQ
ALL-TIME TOTAL
WGS: 66 SEQUENCED
RNA SEQ:147 SEQUENCED
RNA SEQ:147 SEQUENCED
POST-MORTEM
ALIQUOTS ON SITE & SHIPPED
ALIQUOTS ON SITE & SHIPPED
ALL-TIME TOTAL
11,138
POST-MORTEM
DIAGNOSIS TYPES
DIAGNOSIS TYPES
ALL-TIME TOTAL
29
