Targeting Calcium Regulatory Molecules for Arrhythmia Prevention (R01) | Apply Online

Opportunity Summary:

The Targeting Calcium Regulatory Molecules for Arrhythmia Prevention (R01) funding opportunity (PA-07-101) is a National Institutes of Health (NIH) program announcement from the National Heart, Lung, and Blood Institute (NHLBI) focused on new ways to prevent and stop cardiac arrhythmias by targeting calcium (Ca2+) regulatory molecules. The central idea is that abnormal handling of calcium inside heart cells is a major driver of many rhythm disorders, and that the field already has enough mechanistic insight into calcium-control pathways to begin translating that knowledge into concrete therapeutic strategies. Applications are expected to build directly on what is known about specific calcium regulatory molecules involved in arrhythmogenesis and use that knowledge to identify, validate, and test novel therapeutic targets intended to terminate arrhythmias, prevent them from recurring, or reduce susceptibility to them in clinically relevant settings.

A key expectation of the announcement is that projects will not stop at basic discovery. Competitive applications are expected to include preclinical testing or early clinical testing of promising therapeutic approaches, using established models that reflect human arrhythmogenic disease. In practice, this points toward studies that move beyond cell culture observations and into well-justified in vivo models, ex vivo human tissue when appropriate, or early-stage clinical investigations where feasible. The announcement also emphasizes translational readiness: applicants should show that, if the strategy works, there is a realistic path to advancing those findings into Phase I or Phase II clinical trials. That means reviewers will likely look for evidence of practical feasibility, such as a clear development plan, appropriate endpoints and biomarkers, safety considerations, and a rationale for how the intervention could be produced, delivered, and tested in people.

The mechanism of support is the NIH Research Project Grant (R01), which is the standard NIH mechanism for investigator-initiated research projects and typically supports multi-year, hypothesis-driven programs of work. NHLBI does not specify a fixed budget ceiling or number of awards in the summary information provided here, because both the size and duration of awards are intended to vary depending on the scope, complexity, and costs of the proposed research. In other words, funding decisions will be driven by the number of meritorious applications received, their scientific quality, and the appropriateness of the requested budgets and project periods for the work proposed.

From an eligibility standpoint, the opportunity is broadly accessible across many organization types. Eligible applicants include public and private institutions of higher education, nonprofit organizations (including both 501(c)(3) and non-501(c)(3) entities), for-profit organizations other than small businesses, small businesses, and a wide range of governmental entities (state, county, city/township, special district, and independent school districts), as well as public housing authorities/Indian housing authorities. Tribal governments and tribal organizations are included, including federally recognized tribal governments. The announcement also states that foreign institutions are eligible to apply, that eligible federal agencies may apply, and that faith-based and community-based organizations may apply, which further underscores the intent to encourage participation from a broad research and development community.

Administratively, the opportunity falls under the NIH discretionary grant category and is associated with the Health funding activity area, with CFDA number 93.837 (Cardiovascular Diseases Research). The posting date is listed as December 1, 2006, with multiple receipt dates for applications (meaning there were recurring submission cycles rather than a single deadline during the active period of the announcement). The archived date is October 2, 2009, indicating the specific announcement is no longer active, though similar topics may appear in newer NHLBI or NIH notices. The full announcement was historically hosted through the NIH grants guide at the provided link (PA-07-101), and NIH Office of Extramural Research (OER) web support is listed for access or linking issues.

Overall, this FOA is designed for teams that can connect mechanistic insight about calcium signaling and calcium-handling proteins to tangible anti-arrhythmic interventions, demonstrate efficacy in established disease-relevant models (and ideally in early clinical settings), and credibly outline how successful results could be advanced into early-phase clinical trials.

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