Critical Illness Immunological Reprogramming and Control Point Learning Engine (CIRCLE) Innovative Solutions Opening (ISO)
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Advanced Research Projects Agency for Health (ARPA-H) has issued an Innovative Solutions Opening (ISO) for the Critical Illness Immunological Reprogramming and Control Point Learning Engine (CIRCLE) program. This initiative seeks to develop a Control Point Validation Engine to improve intensive care unit (ICU) health outcomes, reduce stay times, and lower associated costs by assessing, predicting, and treating immuno-inflammatory dysregulation. Multiple Other Transaction (OT) Agreements are anticipated. This is an open competition, with full proposals due by May 28, 2026.
Purpose & Scope
The CIRCLE program aims to achieve a 25% reduction in average ICU stay by enabling personalized immunotherapy and improved patient outcomes. The program is structured around three Technical Areas (TAs) and three Acceleration Platforms (APs):
- TA1: Measure – Develop real-time, tissue-specific immuno-inflammation biomarker sensors and diagnostics.
- TA2: Model – Create personalized computational models (digital twins) to predict critical illness trajectories and identify control points.
- TA3: Modulate – Develop and test interventions to modulate immune responses to control critical illness.
- APs – Provide independent verification, validation, data analysis, FDA-compliant modeling platforms, and clinical trial support.
Contract Details
This is a Solicitation for a 5-year, 3-phase program, with awards made via Other Transaction (OT) Agreements. Multiple awards are anticipated. There is no specific set-aside, making it an open competition for universities, non-profit organizations, small businesses, and other than small businesses. Federally Funded Research and Development Centers (FFRDCs) and U.S. Government entities are not permitted to participate as prime or sub-performers. Non-U.S. entities may participate if compliant with regulations.
Submission & Evaluation
Proposers must submit a Solution Summary prior to a full proposal.
- Proposers' Day: March 11, 2026
- Solution Summaries Due: March 30, 2026, 1 PM ET
- Questions Due: May 22, 2026, 1 PM ET
- Full Proposals Due: May 28, 2026, 1 PM ET Proposals will be evaluated on Overall Scientific and Technical Merit, Proposer's Capabilities and/or Related Experience, Price/Value Analysis, and Relevance to the ARPA-H Mission. Required submission documents include a Technical & Management volume, Administrative & National Policy document, Task Description Document, and a detailed Cost Proposal Workbook. A commercialization strategy narrative is required for Type A proposals.
Amendments
Amendment 1 updated the full proposal submission date to May 28, 2026. Subsequent amendments provided clarifications, updated terminology (e.g., "Program Lead" to "Project Lead"), added a link to an FAQ portal, and included information related to Large Language Models.