Special notice
Critical Illness Immunological Reprogramming and Control Point Learning Engine (CIRCLE) Innovative Solutions Opening (ISO)
ARPA-H-SN-26-149
National Institutes of Health, Advanced Research Projects Agency for Health (Arpa-H). Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).
Response deadline
March 9, 2026 at 12:00 PM EDT
Closed 237 days ago. Posted February 17, 2026, first published February 17, 2026. Scheduled to archive March 11, 2026.
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Description
As published on SAM.gov.
This Special Notice (SN) provides information about the ARPA-H CIRCLE Program Proposers’ Day (PD) on Wednesday, March 11, 2026. ARPA-H published an Innovative Solutions Opening (ISO) solicitation for the CIRCLE program on February 17, 2026.
The CIRCLE ISO (ARPA-H-SOL-26-139) is posted on SAM.gov and additional information about the program can be found on the ARPA-H website: https://solutions.arpa-h.gov/circle
For additional PD details and registration information see the attached Special Notice (ARPA-H-SN-26-149).
Attachments
Files listed on SAM.gov. The ones we hold a copy of download from here; the rest open SAM's download, which needs no account.
- CIRCLE PD SN.pdf259 KB, February 17, 2026
Publications
Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.
February 17, 2026
Special notice
Critical Illness Immunological Reprogramming and Control Point Learning Engine (CIRCLE) Proposers' Day
Due March 9, 2026 at 12:00 PM EDT. SAM.gov, notice 4482984f537c4a958918734fe75e0b63
3 revisions on SAM
- February 17, 2026: publish, special notice
- February 17, 2026: publish, special notice
- February 17, 2026: publish, solicitation
February 17, 2026
Special notice, originally solicitation
Due March 9, 2026 at 12:00 PM EDT. SAM.gov, notice 6db526c327794aeab818768578099e2a
3 revisions on SAM
- February 17, 2026: publish, special notice
- February 17, 2026: publish, special notice
- February 17, 2026: publish, solicitation
Points of contact
- CIRCLE ISO CoordinatorCIRCLE@ARPA-H.gov