Research on biopsychosocial factors of social connectedness and isolation on health, wellbeing, illness, and recovery (R01 Basic Experimental Studies with Humans Required) | PAR 19 384

Opportunity Information: Apply for PAR 19 384

The National Institutes of Health (NIH) grant opportunity PAR 19 384 is an R01 funding announcement focused on basic experimental research that explains how social connectedness and social isolation work "under the hood" and how they shape health, illness, recovery, and overall wellbeing. The central goal is mechanistic: the NIH is looking for studies that move beyond simply showing that relationships matter and instead identify the underlying biopsychosocial mechanisms, processes, and trajectories through which social relationships influence biomedical and behavioral outcomes. In practical terms, the program emphasizes understanding how social ties, supportive interactions, belonging, loneliness, exclusion, and related social experiences translate into measurable changes in human functioning over time, including pathways that may contribute to disease risk, symptom severity, resilience, treatment response, and recovery.

A key feature of this FOA is that it requires basic experimental studies with humans that prospectively assign participants to conditions, meaning researchers must experimentally manipulate an independent variable rather than relying only on observational correlations. Projects should involve assigning people to different social conditions or interventions that alter social experiences (for example, experimentally varying social inclusion vs. exclusion, support vs. neutral interaction, perceived belonging, social evaluative stress, or structured connection opportunities) and then measuring outcomes in humans. Outcomes can be biomedical (for example, physiological markers, immune or endocrine responses, sleep-related measures, pain sensitivity, cardiovascular indicators) and/or behavioral (for example, cognition, affect, decision-making, substance use behaviors, adherence-related behaviors, social functioning). NIH explicitly notes that these studies are considered prospective basic science studies involving human participants that meet the NIH definition of basic research, while also fitting within NIH's definition of a clinical trial because participants are prospectively assigned to conditions and outcomes are assessed.

The intended scope includes research that clarifies mechanisms and trajectories, which typically means paying attention to how effects unfold across time and context, identifying mediators and moderators, and distinguishing short-term responses from longer-term patterns relevant to illness onset, progression, and recovery. Competitive projects under this umbrella would be expected to articulate clear causal questions (what aspect of social connectedness or isolation is being manipulated and why), specify testable mechanisms (biological, psychological, and social pathways), and use rigorous experimental designs appropriate for human subjects. The FOA also supports the idea that social relationships can be protective or harmful depending on circumstances, so studies that examine boundary conditions (who benefits, who is harmed, and under what conditions) fit well with the program's emphasis on processes and trajectories.

Eligibility is broad and includes many types of U.S. institutions and organizations, reflecting NIH's intent to draw from diverse research settings and populations. Eligible applicants listed include state, county, and local governments; special district governments; independent school districts; public and state-controlled institutions of higher education; private institutions of higher education; federally recognized Native American tribal governments; Native American tribal organizations (including those other than federally recognized tribal governments); public housing authorities and Indian housing authorities; nonprofits with and without 501(c)(3) status (other than institutions of higher education); for-profit organizations (other than small businesses); small businesses; and other entities. The FOA also highlights additional eligible groups such as Alaska Native and Native Hawaiian Serving Institutions, Asian American Native American Pacific Islander Serving Institutions (AANAPISI), Hispanic-serving Institutions, Historically Black Colleges and Universities (HBCUs), Tribally Controlled Colleges and Universities (TCCUs), faith-based or community-based organizations, eligible federal agencies, regional organizations, U.S. territories or possessions, and non-U.S. entities (foreign organizations). This range signals an openness to applications that can reach different communities and contexts where social connectedness and isolation meaningfully affect health and recovery.

Administratively, this is a discretionary NIH grant mechanism (R01), categorized under education, health, income security, and social services, and associated with multiple CFDA numbers (93.173, 93.213, 93.242, 93.273, 93.279, 93.307, 93.361, 93.399, 93.853, 93.865, 93.866, 93.867), indicating involvement across multiple NIH institutes or program areas. The opportunity record lists an original closing date of 2021-02-01 and a creation date of 2019-09-18; applicants would typically confirm current receipt dates and any reissued or active versions of the announcement in NIH systems, since FOAs can be recompiled, renewed, or replaced over time. The award ceiling and expected awards fields are not specified in the provided record, which is common in NIH FOA summaries because budgets are often driven by project scope, institute-specific policies, and standard R01 budget rules rather than a single published cap.

Overall, PAR 19 384 supports rigorous, hypothesis-driven experiments in humans that can causally test how social connection and isolation influence health-relevant biology and behavior. The emphasis is on fundamental mechanisms and explanatory pathways, using prospective assignment to conditions and measurable human outcomes, with broad institutional eligibility that includes academic, nonprofit, governmental, community-based, tribal, and international research organizations.

• The National Institutes of Health in the education, health, income security and social services sector is offering a public funding opportunity titled "Research on biopsychosocial factors of social connectedness and isolation on health, wellbeing, illness, and recovery (R01 Basic Experimental Studies with Humans Required)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.173, 93.213, 93.242, 93.273, 93.279, 93.307, 93.361, 93.399, 93.853, 93.865, 93.866, 93.867.
• This funding opportunity was created on 2019-09-18.
• Applicants must submit their applications by 2021-02-01. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
• Eligible applicants include: State governments, County governments, City or township governments, Special district governments, Independent school districts, Public and State controlled institutions of higher education, Native American tribal governments (Federally recognized), Public housing authorities/Indian housing authorities, Native American tribal organizations (other than Federally recognized tribal governments), Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education, Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education, Private institutions of higher education, For-profit organizations other than small businesses, Small businesses, Others.

Apply for PAR 19 384

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