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NIH Phase 1 Exploratory/Developmental Grant (R61)

Catalyze Product Definition Medical Device prototype design/testing and disease target identification and assay development

Funds building and testing an early medical-device prototype and its matching disease target or assay, for heart, lung, blood or sleep disease.

OpenNational Institutes of HealthUnited States

A device idea for heart, lung, blood or sleep disease usually needs two things worked out at once: a working prototype, and a disease target or assay that proves the prototype is measuring or treating the right thing. This notice funds both together.

It sits inside NHLBI's Catalyze Program's device track. The R61 first phase supports identifying and testing an initial prototype design, identifyin…

Phased development and testing of an initial medical-device prototype alongside disease target identification and assay development (R61), followed by continued prototype development, design refinement and larger-scale testing (R33), for heart, lung, blood or sleep disease, under NHLBI's Catalyze Program.

CycleiHow often this grant runs — e.g. annually, on a rolling basis, or a one-off call.Multiple per year
Next deadlineiThe next date applications are due. Rolling means you can apply any time.23 Dec 2027
Decision timeiTypical time from the deadline to the funder's decision.26 weeks
Project durationiHow long the funded work is expected to run.—
Award typeiThe form of funding — grant, equity, loan, tax credit, etc.Grant
Match fundingiThe share of project costs you must cover yourself. 0% = fully funded.—
Funding pooliThe total budget available across all awards in this round.—

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Last verified: 25 Aug 2026Funder reference: RFA-HL-26-019Source: www.grants.gov