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    Science Track Award for Research Transition (START) Program (R03, Clinical Trial Optional)

    NIH supports investigators entering high-priority substance use research, including HIV comorbidity, to gather preliminary data for future grants and advance their careers.

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    Cancer Research Grants 2026Research Grants Due This Month
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    Avant Garde/Avenir Awards for Investigators Conducting High Risk/High Reward Research on HIV and Substance Use (or Substance Use Disorders) (DP1 Clinical Trial Optional)

    Supports high-risk, high-impact research on HIV and substance use to advance HIV prevention, diagnosis, treatment, and virus suppression among people who use substances or have substance use disorders.

    HHS-NIH11Due Sep 25, 2027$3,500,000

    Exploratory Clinical Neuroscience Research on Substance Use Disorders (R61/R33 Clinical Trial Optional)

    NIH supports exploratory, phased clinical research on the neurobiological mechanisms of substance use disorders, including relevant circuitry and behavior; clinical trials are optional.

    HHS-NIH11Due Feb 19, 2027

    Pilot and Feasibility Studies in Preparation for Substance Use and HIV Prevention Intervention and Services Research Trials (R34 Clinical Trial Optional)

    Supports pilot and feasibility studies to prepare substance use and HIV intervention and services research trials, including prevention, treatment, and recovery research.

    HHS-NIH11Due Feb 16, 2027$450,000

    Small Business Transition Grant for New Entrepreneurs (Parent R41/R42 Clinical Trial Optional)

    The NIH will soon offer grants to support early-career scientists at US small businesses, funding both research and entrepreneurial training, with required mentoring for first-time principal investigators.

    HHS-NIH11Forecasted Jan 5, 2027Forecasted

    Accelerating the Pace of Substance Use Research Using Existing Data (R21 Clinical Trial Not Allowed)

    This grant funds research on drug use behaviors, prevention, and health services by analyzing existing social science, behavioral, and neuroimaging data.

    HHS-NIH11Due Dec 3, 2026· 18d$275,000