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NIH Exploratory/Developmental Research Grant

Mechanisms that Impact Cancer Risk after Bariatric Surgery (R21)

Funds proof-of-concept work on how bariatric surgery changes cancer risk — and refuses applications that already have unpublished preliminary data.

OpenNational Institutes of HealthUnited States

The exploratory twin of the National Cancer Institute's bariatric surgery notice, and it carries a condition that is genuinely unusual.

The science is the same: mechanisms by which bariatric surgery affects cancer risk, with the institute openly trying to pull in scientists who study the surgery and have been measuring weight loss and diabetes instead.

What this version funds is proof of concept

Proof-of-concept feasibility and exploratory studies of the mechanisms by which bariatric surgery affects cancer risk, where feasibility has not already been established in the literature or by preliminary data. Unpublished data may not be included; preprints with a digital object identifier are acceptable. Clinical trials are not allowed.

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.7 Jan 2028
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: PAR-25-044Source: www.grants.gov