NIH Highlighted Topic: Next-generation Cellular Immunotherapy: Reprogramming Immune Cells Inside the Body
Executive Summary
The National Institutes of Health has published a Highlighted Topic titled "Next-generation Cellular Immunotherapy: Reprogramming Immune Cells Inside the Body." It signals that five NIH Institutes, NCI, NIAID, NIAMS, NIBIB, and NIDCR, want to fund basic research, preclinical development, and early clinical testing of in vivo immune cell engineering: approaches that reprogram T cells, natural killer cells, macrophages, and other immune cells inside the patient rather than extracting, modifying, and expanding them in a manufacturing facility.
The commercial thesis NIH lays out is unusually explicit. CAR-T therapies transformed treatment of hematologic malignancies, but current adoptive cellular therapies carry substantial practical barriers: lymphodepletion, leukapheresis, ex vivo cell modification and expansion, GMP manufacturing, specialized facilities, and weeks-long processing. NIH states that this complexity makes these therapies slow, costly, and inaccessible to many patients, and that in vivo engineering removes a major logistical bottleneck and offers true off-the-shelf cellular immunotherapy. That is a manufacturing and access argument as much as a scientific one, which makes this the most small-business-native Highlighted Topic NIH has published this cycle.
For a small business, the practical translation is this: there is no new application portal and no new deadline attached to this topic. A Highlighted Topic is a demand signal, not a Notice of Funding Opportunity. You capture the funding by submitting to the NIH SBIR or STTR parent announcement, requesting assignment to one of the five Institutes, and aligning your Specific Aims to that Institute's stated interests.
One structural fact should shape your plan before anything else. The topic explicitly invites early clinical testing, pilot clinical trials, and acceleration of clinical trials, yet only NCI among the five Institutes accepts clinical trial applications without restriction under the parent announcements. NIBIB accepts only early stage trials such as feasibility, first-in-human, and safety studies that inform early technology development. NIAID accepts clinical trials under SBIR but not under STTR. NIAMS and NIDCR accept no clinical trials under either parent announcement, despite NIAMS explicitly inviting clinical research. Matching your trial design to the wrong Institute or mechanism makes the application non-responsive and unreviewed regardless of scientific merit.
The topic was posted on September 2, 2026 and expires on September 2, 2028. If you build viral vectors, lipid nanoparticles or other synthetic nanocarriers, biodegradable nanomaterials, gene editing payloads, synthetic receptors or genetic circuits, biomaterials for immunotherapy, or microphysiological platforms for evaluating in vivo transduction, there is a well-signposted funding path here across multiple Institutes.
At a Glance
Topic title: Next-generation Cellular Immunotherapy: Reprogramming Immune Cells Inside the Body
Issuing agency: National Institutes of Health, U.S. Department of Health and Human Services
Awarding Institutes: NCI, NIAID, NIAMS, NIBIB, and NIDCR
Non-awarding participating office: the Office of Autoimmune Disease Research in the Office of Research on Women's Health (OADR-ORWH)
Type: NIH Highlighted Topic. This is not a Notice of Funding Opportunity.
Post date: September 2, 2026
Expiration date: September 2, 2028
Recommended small business mechanism: NIH SBIR (R43 and R44) or NIH STTR (R41 and R42) parent announcement
Current parent announcements: PA-27-100 for SBIR, PA-27-102 for STTR, PA-27-101 for the Phase IIB Strategic Breakthrough Award, and PAR-27-098 for the Commercialization Readiness Pilot
Standard annual due dates: January 5, April 5, and September 5
SBA statutory guidelines this cycle: $323,090 Phase I, $2,153,927 Phase II, $4,191,495 CRP
Institute headroom: NCI and NIAID are among the components listing Phase I limits above the statutory guideline, up to $700,000. Limits differ by Institute and must be confirmed.
Clinical trials: NCI accepts them. NIBIB accepts only early stage, feasibility, first-in-human, safety, or other small trials informing early technology development, and will not support pivotal, efficacy, or effectiveness trials. NIAID accepts under SBIR but not STTR. NIAMS and NIDCR accept none under either parent.
Cost share: none for Phase I or Phase II. Phase IIB requires 100 percent third-party matching funds.
Equity dilution: none. This is non-dilutive federal funding.
Profit or fee: allowable, must be in the budget at submission, and normally will not exceed 7 percent of total costs
Funding signal: NIDCR is the only participating Institute that stated it may give special consideration to meritorious applications in this topic area.
Initiative alignment: none stated. Unlike most Highlighted Topics published this cycle, this one is not issued under the Make America Healthy Again initiative, so there is no policy framing to reference.
Central contact: none designated. Each Institute lists its own scientific contact.
What This Opportunity Actually Is
An NIH Highlighted Topic is a published statement of scientific interest from one or more NIH Institutes, Centers, and Offices. It tells the research community that an area of science is a priority without creating a separate funding announcement, deadline, or review process. There is no topic-specific number to search on Grants.gov, and applications are not scored against other applications to the topic.
What it does do is identify which Institutes are receptive, which determines your assignment request and your program officer conversations, and supply the vocabulary program staff already use internally, which your Specific Aims should mirror. On this topic only NIDCR went on record with a funding advantage, stating it may give special consideration to meritorious applications in the topic area. The other four Institutes made no such statement. That is a thinner set of stated signals than most topics carry, and it means Institute selection here rests on scientific and mechanism fit rather than on declared preference.
It is also worth noting what this topic lacks. Most NIH Highlighted Topics published in this cycle are issued under the Make America Healthy Again initiative and list named policy alignments that applicants can reference in a Significance section. This one does not. Do not manufacture an initiative alignment that the topic does not claim.
Why This Topic Is a Strong Small Business Fit
Most NIH Highlighted Topics require careful triage to separate the academically fundable work from the commercially fundable work. This one requires less of that, because nearly every area of interest across the five Institutes describes a product: a delivery vehicle, a payload, an editing tool, a receptor design, a biomaterial, or an evaluation platform.
NIH's own background section makes the commercialization case for you. It names lymphodepletion, leukapheresis, ex vivo modification and expansion, GMP manufacturing, specialized facilities, and weeks-long processing times as the barriers, and states that in vivo engineering offers true off-the-shelf cellular immunotherapy for rapidly progressing diseases where patients often cannot afford the wait. Cost of goods, manufacturing complexity, time to treatment, and site-of-care requirements are all named or implied. A commercialization plan that quantifies the delta between an ex vivo process and your in vivo approach is arguing exactly the case NIH already made.
The clearest product lanes across the five Institutes:
Delivery vehicles. Viral vectors including lentiviral and adeno-associated viral vectors, engineered viruses, lipid nanoparticles, synthetic nanocarriers, biodegradable nanomaterials, and artificial cells. Named by NCI, NIBIB, and NIDCR.
Targeting and specificity. Technologies increasing the specificity and efficiency of immune cell targeting and transduction in vivo, plus tissue, antigen, and cell specificity for enhancing protective immunity or eliminating and reprogramming pathogenic subsets. Named in the topic purpose and by NIAID.
Payloads and editing tools. CARs, TCRs, costimulatory domains, other functional elements, mRNA and siRNA cargos, CRISPR/Cas9, base and prime editing, nucleases and genome editors, and epigenetic reprogramming. Named by NCI, NIBIB, and NIDCR.
Synthetic biology and control. Synthetic receptors, transmembrane chimeric antigen receptors, and synthetic genetic circuits for engineering T cells, NK cells, and macrophages. Named by NIBIB. Control and reversibility of therapeutic activity is named by NIAID.
Biomaterials. Biomaterials for enhancing immunotherapy, named by NIBIB.
Evaluation platforms. Novel platforms to engineer immune cells in vivo using microphysiological systems to model and evaluate targeting, transduction efficiency, and therapeutic function. Named by NIBIB, and a distinct product category rather than a research method.
Preclinical safety and biomarker work. Preclinical toxicity and safety studies, biodistribution improvement, and pilot clinical trials informed by biomarkers. Named by NCI and echoed in NIAID's safety priorities.
Computational and AI tools. Advanced data science, artificial intelligence and machine learning, and computational modeling to elucidate mechanisms of action and optimize design and performance. Named by NIDCR, with a parallel interest from OADR-ORWH in computational interrogation of clinical trial data.
The ordinary SBIR test still applies. There must be a commercial product with unresolved technical risk that your company will own and sell. On this topic that test is easier to pass than usual.
Which Institute Should You Target?
With five awarding Institutes, the assignment request drives review assignment, budget ceiling, and whether your clinical design is even reviewable. Group yourself by disease area first, then check the clinical trial constraint.
NCI, for oncology. NCI encourages development of in vivo immune cell engineering methods for testing in preclinical models and early clinical trials in both hematologic and solid tumors. Its named topics span viral vector delivery of DNA carrying tumor-specific CARs, TCRs, and costimulatory domains; nonviral delivery using LNPs or other synthetic nanocarriers for mRNA, siRNA, and other cargos; novel delivery vehicles including biodegradable nanomaterials; novel gene editing methods such as CRISPR/Cas9 and base or prime editing delivered with nanovehicles for genetic or epigenetic reprogramming; preclinical toxicity and safety studies and pilot clinical trials informed by biomarkers; and combination use with immune checkpoint blockade or agents modulating the tumor microenvironment. NCI is also the only one of the five that accepts clinical trials without restriction, which makes it the default target for any project with a clinical component.
NIAID, for infectious, autoimmune, and immune-mediated disease. NIAID encourages basic, translational, and early clinical research on engineered cellular therapies, including targeted modulation of protective or pathogenic immune responses that induce durable disease control while preserving protective immunity. Its three named strategies are improving tissue, antigen, and cell specificity for enhancing protective immunity or eliminating and reprogramming pathogenic immune subsets including autoreactive innate and adaptive cells; improving scalability, cost reduction, and expansion of access to off-the-shelf or in vivo approaches that minimize preconditioning; and improving safety, covering mitigation of off-target effects, unintended tissue injury, prolonged immune dysregulation, oncogenic risk, and improved control and reversibility of therapeutic activity. NIAID accepts clinical trials under SBIR but not under STTR.
Note how commercial NIAID's second bullet is. Scalability, cost reduction, and access are business metrics, and minimizing preconditioning is a direct attack on the lymphodepletion barrier. If your platform's advantage is that it removes preconditioning or lowers cost of goods, NIAID has invited that argument in its own words.
NIBIB, for platform and enabling technology. NIBIB is interested in technologies to engineer immune cells in vivo across a range of diseases, listing new types of engineered viruses and artificial cells for genetic material delivery; novel delivery methods using LNPs, nanocarriers, biodegradable nanomaterials, or other vehicles; novel gene editing methods, synthetic receptors, and transmembrane chimeric antigen receptors; nucleases and genome editors for DNA manipulation and regulation; synthetic genetic circuits for engineering T cells, NK cells, and macrophages for immune regulation and cancer therapy; biomaterials for enhancing immunotherapy; and development of novel platforms using microphysiological systems to model and evaluate targeting, transduction efficiency, and therapeutic function.
NIBIB is the right door for a company whose product is the enabling technology rather than a therapy for a named indication, since its framing is deliberately disease-agnostic. NIBIB's clinical trial policy is narrower than NCI's but well matched to this topic: it supports feasibility, first-in-human, safety, and other small trials that inform early stage technology development, and will not support pivotal trials, later-phase trials, or trials whose primary outcome is efficacy, effectiveness, or a post-market concern. Mechanistic trials are supported only where the primary focus of the project is technology development.
NIAMS, for rheumatic, autoimmune, autoinflammatory, and musculoskeletal disease. NIAMS encourages basic, translational, and clinical research advancing in vivo immune cell engineering-based cell therapy for rheumatic, autoimmune, autoinflammatory, and musculoskeletal and bone diseases and conditions. That is the entirety of its published language, which is notably brief relative to the other four. Critically, NIAMS accepts no clinical trials under either parent announcement, so its invitation to clinical research must be satisfied through work that does not meet the NIH clinical trial definition, or through a NIAMS-specific announcement designed for trials.
NIDCR, for dental, oral, and craniofacial disease. NIDCR seeks research and technology advancement for dental, oral, and craniofacial diseases and conditions, listing novel viral vector-based delivery platforms and nonviral approaches using LNPs and other synthetic nanocarriers for efficient targeted delivery of nucleic acids or protein cargos; innovative gene editing including CRISPR/Cas9 and base or prime editing for precise and durable genetic and epigenetic modification of immune cells in vivo; combination strategies integrating immune engineering with immune checkpoint blockade, autoantigen and antibody-based therapies, and cytokine and chemokine-mediated modulation; and advanced data science, AI and machine learning, and computational modeling to elucidate mechanisms of action and optimize design and performance. NIDCR is the only Institute here offering a stated funding advantage, and the only one naming protein cargo delivery alongside nucleic acids. It accepts no clinical trials under either parent.
Quick reference: awarding Institutes, clinical trial posture, and contacts
NCI. Hematologic and solid tumors, delivery, editing, preclinical safety, combination therapy. Accepts clinical trials. No stated funding signal. Contact: Zhang-Zhi Hu, M.D., zhang-zhi.hu@nih.gov
NIAID. Infectious, autoimmune, and immune-mediated disease, with emphasis on specificity, scalability and access, and safety. Accepts clinical trials under SBIR only, not STTR. No stated funding signal. Contact: Jeffrey Rice, Ph.D., Jeffrey.Rice@nih.gov
NIAMS. Rheumatic, autoimmune, autoinflammatory, musculoskeletal and bone disease. Accepts no clinical trials under either parent. No stated funding signal. Brief published language, so a program officer call matters more here. Contact: Marie Mancini, Ph.D., Marie.Mancini@nih.gov
NIBIB. Disease-agnostic enabling technology, synthetic biology, biomaterials, microphysiological evaluation platforms. Accepts early stage, feasibility, first-in-human, safety, and other small trials informing technology development only. No stated funding signal. Contact: Tuba Fehr, PhD, tuba.fehr@nih.gov
NIDCR. Dental, oral, and craniofacial disease, delivery, editing, combination strategies, AI and computational modeling. Accepts no clinical trials under either parent. May give special consideration to meritorious applications. Contact: Zhong Chen, MD, PhD, nidcr-program@mail.nih.gov
Which NIH Mechanism Should a Small Business Use?
Small businesses should apply through the NIH SBIR or STTR parent announcement and request assignment to the Institute whose interests match. On this topic the mechanism choice interacts with the clinical trial question more than usual, so decide both together.
NIH Parent SBIR, currently PA-27-100 (R43 and R44). The default route. Accepts Phase I, Phase II, Direct to Phase II, and Fast-Track. Use it when your company performs the majority of the research and your Principal Investigator is primarily employed by the company. Under PA-27-100, NIAMS and NIDCR do not accept clinical trials, and an application proposing a clinical trial that aligns only with one of those missions is non-responsive and will not be reviewed.
NIH Parent STTR, currently PA-27-102 (R41 and R42). Requires a formal collaboration with a nonprofit research institution, with at least 40 percent of the research at the small business and at least 30 percent at a single partner institution. STTR permits the Program Director or Principal Investigator to be employed by either the small business or the partnering nonprofit while the award still goes to the small business, which matters in this field because much of the foundational vector, editing, and receptor work sits in academic labs and the inventor often holds a faculty appointment. Under PA-27-102, NIAID, NIAMS, and NIDCR do not accept clinical trials, so a project with an academic PI and a clinical component cannot use STTR at NIAID even though SBIR would work.
A distinction worth stating plainly. NIH small business phases are separate from and not aligned with clinical trial phases. An SBIR Phase I is a feasibility award, and it is not the same thing as a clinical Phase I trial. NIBIB's policy supports clinical Phase I and first-in-human studies, which can be proposed within an SBIR Phase II or Fast-Track application. Confusing the two numbering systems is a common and expensive error on topics like this one that invite early clinical work.
Direct to Phase II. Available if you already hold the feasibility data a Phase I would generate and never received a Phase I award for that project. SBIR only, not available under STTR. For a company with a validated delivery platform in one context and new in vivo transduction data in an immune cell context, this is often the fastest route.
Fast-Track. Phase I and Phase II submitted together and reviewed once. Poor fit when Phase I results would change the Phase II design, which is frequently the case here because the choice of vector, payload, or dosing regimen often depends on what the first biodistribution and specificity data show.
Phase IIB Strategic Breakthrough Award, currently PA-27-101 (R44). For companies that completed an NIH SBIR or STTR Phase II and need a commercialization bridge. Requires documentation of not less than 100 percent matching funds from new private capital or from a government source other than a Phase I or Phase II SBIR or STTR award. Award periods must not exceed 4 years. Given the capital intensity of gene-modified cell therapy development, a Phase IIB matching plan should be sketched early rather than discovered later. Note that not all Institutes accept clinical trials through Phase IIB.
Commercialization Readiness Pilot, currently PAR-27-098 (SB1). This mechanism deserves particular attention on this topic. CRP supports later-stage work not typically fundable through Phase II or Phase IIB, and NIH names Investigational New Drug and Investigational Device Exemption enabling studies, independent replication of key studies, clinical studies, manufacturing costs, and regulatory assistance among eligible activities. For an in vivo immune cell engineering program, IND-enabling toxicology and manufacturing are precisely the expensive steps that fall between a successful Phase II and a first-in-human study. CRP permits substantial subcontracting, though the small business must maintain oversight and management of the research throughout.
Funding Allowance
The ceiling depends on two layers.
Layer one, the SBA statutory guidelines for the current cycle:
Phase I: up to $323,090 in total costs, for a project period of 6 months to 2 years
Phase II: up to $2,153,927 in total costs, for a project period of 1 to 3 years
Commercialization Readiness Pilot: up to $4,191,495 in total costs, for a project period of up to 3 years
Total funding support means direct costs, indirect costs, and fee combined. A reasonable profit or fee is allowable but must be in the budget at submission and normally will not exceed 7 percent of total costs. NIH does not adjust budgets after submission, so a request at the wrong level cannot be corrected later.
Layer two, Institute-specific guidance. NIH holds SBA waivers permitting awards above the guideline for approved topics, and each Institute publishes its own limits.
NCI. Among the components listing Phase I headroom above the statutory guideline, reaching $700,000 in the parent announcement's participating component table. NCI's own published guidance generally funds waiver-eligible Phase I applications up to $400,000 across up to 2 years and considers Phase II up to $2,250,000 across up to 3 years. NCI also runs a Phase IIB Bridge Award and caps its CRP support well below the government-wide figure.
NIAID. Also listed in the higher Phase I tier, but NIAID publishes a per-year constraint that reshapes budgets more than a total ceiling does: NIAID will not generally allow Phase II or Phase IIB awards of any duration exceeding $1,000,000 in total costs per year. For a program with heavy vector manufacturing or toxicology costs concentrated in one year, this is a planning constraint worth designing around from the start.
NIAMS, NIBIB, and NIDCR. Refer to the participating component table in the current parent announcement and confirm directly with program staff. These Institutes do not all maintain standing published SBIR budget pages, and NIBIB in particular has historically used targeted announcements with their own budget language for clinical work.
Two cautions. First, a ceiling in a component table is not the number that gets awarded. BW&CO's analysis of a fiscal year 2026 NCI SBIR award slice found Phase I level awards ranging from roughly $305,000 to $404,000, with not one award in 44 records reaching the $700,000 headroom. Budgeting to the ceiling budgets against an outcome that did not occur. Second, an Institute may reduce the recommended budget or shorten the award period for budgetary, administrative, or programmatic reasons even after a strong review score.
A candid note on capital adequacy. A Phase II at $2.15 million will not carry an in vivo gene-modified immunotherapy from concept to the clinic. The realistic financing picture is a Phase I or Direct to Phase II establishing specificity and transduction efficiency, a Phase II generating the preclinical package, CRP or Phase IIB covering IND-enabling studies and manufacturing, and private capital carrying first-in-human. Applications that show awareness of that full sequence read as commercially serious. Applications that imply a Phase II ends at an approved therapy do not.
Timeline
The topic window runs from September 2, 2026 through September 2, 2028.
Standard annual due dates: January 5, April 5, and September 5. When a due date falls on a weekend or federal holiday, NIH moves it to the next business day. Applications are due by 5:00 p.m. local time of the applicant organization.
Cycles available under this topic:
September 2026 cycle: the September 5, 2026 date shifted to Tuesday, September 8, 2026 because of the weekend and the Labor Day holiday. Since the topic posted on September 2, this cycle is not realistically available.
January 5, 2027: the first realistic cycle for a company beginning preparation now.
April 5, 2027
September 5, 2027
January 5, 2028
April 5, 2028, the last full cycle before the topic expires in September 2028.
What the runway looks like: plan on roughly 9 months from submission to funds in the door. An application submitted in the January 2027 cycle typically reaches an earliest possible start date in the fall of 2027. Council decisions for the September and January cycles are often handled together, so deferring a cycle is not costless.
Work backwards from your target date:
16 to 18 weeks out: identify your target Institute, run the NIH clinical trial determination against your actual design, confirm the Institute's clinical trial policy for your chosen mechanism, contact program staff, and start or verify federal registrations
12 weeks out: lock the Specific Aims page and circulate to program staff
8 weeks out: complete the research strategy, commercialization plan, vector or material sourcing agreements, institutional biosafety planning, letters of support, and any human subjects documentation
4 weeks out: full internal review, budget finalization, and subaward paperwork for any STTR or academic partner
1 week out: submit early to leave room for eRA Commons error correction
Registrations are the most common cause of a missed deadline. You need SAM.gov with a Unique Entity ID, the SBA Company Registry, eRA Commons, and Grants.gov. eRA Commons access depends on the SBA Company Registry being complete first. Allow six weeks or more and begin before you write.
Also note two moving parts. The current SBIR parent, PA-27-100, closes in early April 2027, well before this topic expires, so applicants targeting later cycles must confirm the active announcement number at submission. Separately, the 2026 reauthorization gave agencies authority to limit how many Phase I proposals a company may submit, and HHS has been reported to cap SBIR and STTR submissions at nine per small business per fiscal year. Confirm the current limit with program staff if you plan multiple submissions across Institutes.
Detailed Overview of What NIH Is Looking For
The problem NIH is trying to solve
The topic frames its case in two movements. The first is scientific. Adoptive cellular therapies such as CAR-T cells have transformed treatment of hematologic malignancies, but challenges remain in solid tumors because of poor immune cell trafficking, limited persistence, and immunosuppressive tumor microenvironments. Development for solid tumors is nonetheless expanding rapidly across autologous and allogeneic engineered T, NK, and other immune cells, and cellular therapies are being explored beyond oncology for autoimmune, infectious, and age-related disease and for regenerative medicine.
The second movement is logistical, and it is where the small business opportunity lives. NIH lists the practical barriers to current approaches directly: lymphodepletion, leukapheresis, ex vivo cell modification and expansion, GMP manufacturing, specialized facilities, and weeks-long processing times. It concludes that this complexity makes these therapies slow, costly, and inaccessible to many patients. In vivo engineering is presented as a transformative alternative that engineers immune cells inside the body using in vivo gene delivery, bypassing that process and offering true off-the-shelf cellular immunotherapy. NIH adds that this removes a major logistical bottleneck and enables treatment for rapidly progressing disease where patients often cannot afford the long wait.
Read strategically, that second paragraph is a specification. It names the incumbent's cost drivers and time drivers and identifies the patient population the incumbent cannot serve. A Significance section that quantifies your platform against those specific barriers, time from decision to dose, cost of goods, site-of-care requirement, and eligibility for patients too sick to wait for manufacturing, is arguing on the ground NIH chose.
The scope of the technology as defined
The topic's purpose statement is unusually detailed about what counts. It encourages basic and preclinical research and early clinical testing of in vivo immune cell engineering to reprogram immune cells within the body, including but not limited to T cells, NK cells, and macrophages, for cancer, autoimmune, infectious, and age-related disease and for regenerative medicine. Delivery may involve viral vectors such as lentiviral or adeno-associated viral vectors, or non-viral nanocarriers such as lipid nanoparticles, for delivery of genetic material such as DNA or mRNA. The genetic material could encode CARs, TCRs, or other functional elements, or gene editing machinery for in situ reprogramming.
The purpose statement then names four categories of acceptable work: development and testing of novel technologies and methodologies for increasing specificity and efficiency of immune cell targeting and transduction in vivo; improving biodistribution; improving safety; and enhancing efficacy and persistence of engineered immune cells in preclinical models and early clinical studies.
Two observations for an applicant. Macrophages appear alongside T and NK cells in the topic's own framing, which is a wider aperture than most CAR-focused programs and an opening for companies working outside the T cell mainstream. And specificity, efficiency, biodistribution, safety, and persistence are each named as standalone objectives. You do not need to propose a complete therapy. A Phase I that measurably improves one of those five parameters is responsive on its own terms.
The clinical trial constraint in detail
This deserves its own treatment because the topic invites clinical work that most of its participating Institutes cannot accept through the parent announcements.
The topic asks for early clinical testing in its purpose statement. NCI names pilot clinical trials informed by biomarkers. NIAID names early clinical research. NIAMS names clinical research. OADR-ORWH names acceleration of clinical trials for autoimmune disease. Against that, the parent announcements set the following:
NCI. Accepts clinical trials under both SBIR and STTR. The only unrestricted door among the five.
NIBIB. Supports only early stage clinical trials, specifically feasibility, clinical Phase I, first-in-human, safety, or other small trials that inform early stage technology development. Will not support pivotal trials, clinical Phase II, III, or IV, or trials whose primary outcome is efficacy, effectiveness, or a post-market concern. Mechanistic trials are supported only where the primary focus of the project is technology development. For a first-in-human study of a novel delivery platform, this policy is a good match rather than an obstacle.
NIAID. Accepts clinical trials under the parent SBIR announcement but not under the parent STTR announcement.
NIAMS and NIDCR. Accept no clinical trials under either parent announcement. An application proposing a clinical trial that aligns only with one of these missions is non-responsive and will not be reviewed.
The practical sequence is: run the NIH clinical trial determination against your actual design first, then choose the Institute, then choose SBIR or STTR. Doing it in the reverse order is how a strong application becomes unreviewable. Also confirm the definition rather than assuming, since NIH defines a clinical trial as a study prospectively assigning human subjects to one or more interventions to evaluate effects on health-related biomedical or behavioral outcomes, which captures more designs than founders expect.
What OADR-ORWH adds
The Office of Autoimmune Disease Research within ORWH participates but does not award grants. Your application must be relevant to the objectives of at least one participating Institute, which here means NCI, NIAID, NIAMS, NIBIB, or NIDCR. Its interests function as additional strength within an application already aimed at one of the five, and they are more specific than most non-awarding office statements.
OADR-ORWH is interested in design and engineering of next-generation cellular therapies including CAR-T and CAAR-T cells, regulatory T cells, NK cells, engineered CARs and TCRs, costimulatory domains, and other immunocytes and functional elements; development of data science and computational approaches to interrogate mechanisms of novel cellular therapies, including analysis of new or existing early-phase and pooled clinical trial data to define immunologic treatment windows and identify predictors of therapeutic response; and advancement of translational research to enable and accelerate clinical trials of cellular therapies for autoimmune disease. It strongly encourages engagement of people living with or at risk for autoimmunity to ensure direct relevance to human health.
Three things stand out. CAAR-T cells, chimeric autoantibody receptor T cells for depleting autoreactive B cells, are named explicitly and appear nowhere else in the topic, so a CAAR platform has a clear home. Regulatory T cells are named, which points toward tolerance induction rather than cytotoxic depletion. And the interest in analyzing existing and pooled early-phase clinical trial data to define immunologic treatment windows is a computational product opportunity that requires no wet lab at all, and it pairs naturally with NIDCR's parallel interest in AI and computational modeling. Patient engagement is cheap to do well and most applications will do it thinly or not at all.
Eligibility Requirements
To apply for an NIH SBIR or STTR award, your company must meet the core SBA criteria:
Organized for profit, with a place of business located in the United States, and the primary research performed in the United States
More than 50 percent directly owned and controlled by one or more individuals who are U.S. citizens or permanent resident aliens, by other for-profit small business concerns each majority owned by such individuals, or by a combination. Certain venture capital, hedge fund, and private equity structures may qualify for SBIR under specific conditions. Note that companies more than 50 percent owned by multiple venture capital operating companies, hedge funds, private equity firms, or any combination are not eligible for the STTR program, which is a distinction that catches venture-backed cell therapy companies specifically.
No more than 500 employees including all affiliates. A subsidiary counts its parent's employees.
For SBIR, the Principal Investigator's primary employment must be with the small business at the time of award and for the duration of the project. For STTR, the PD/PI may be primarily employed by either the small business or the partnering nonprofit research institution, with the award still made to the small business.
For SBIR Phase I, the small business must perform at least two thirds of the research or analytical effort. For SBIR Phase II, at least half. For STTR, the small business performs at least 40 percent and a single partner nonprofit research institution performs at least 30 percent.
Additional constraints. NIH will not accept similar applications with essentially the same research focus from the same applicant organization, including derivative applications proposing a single product applicable to multiple purposes with non-substantive modification. This matters on a platform topic, where the temptation is to submit the same delivery technology against several disease areas and Institutes. You may not simultaneously submit identical or essentially identical applications under both parent announcements, and duplicate or highly overlapping applications under simultaneous review are not accepted. Applicants must disclose overlapping federal work under the essentially equivalent work rule. Companies with a substantial award history should confirm they meet the Phase I to Phase II Transition Rate and commercialization benchmarks. Heightened screening of foreign ownership and foreign influence applies under the 2026 reauthorization, with additional scrutiny possible for STTR because of the research institution partnership.
What a Competitive Application Looks Like
A quantified comparison against the ex vivo process. NIH named the barriers: lymphodepletion, leukapheresis, ex vivo modification and expansion, GMP manufacturing, specialized facilities, weeks-long processing. State what your approach does to each one, in numbers where you can. This is the argument the topic was written to invite, and most applications will gesture at it rather than quantify it.
One of the five named parameters as a measurable endpoint. Specificity, transduction efficiency, biodistribution, safety, and persistence are each named as standalone objectives. Pick one or two, define the metric, and state the success criterion. A proposal that improves everything vaguely improves nothing measurably.
A safety and control story. NIAID names off-target effects, unintended tissue injury, prolonged immune dysregulation, oncogenic risk, and control and reversibility of therapeutic activity. In vivo editing raises safety questions that ex vivo manufacturing partially contains through release testing, and reviewers know it. Addressing reversibility or a control switch directly is a differentiator.
The clinical trial determination resolved before the mechanism is chosen. Run the NIH definition against your design, then pick the Institute and announcement. Four of the five Institutes carry restrictions.
An honest capital sequence. Phase I or Direct to Phase II for specificity and transduction, Phase II for the preclinical package, CRP or Phase IIB for IND-enabling studies and manufacturing, private capital for first-in-human. Naming the sequence signals that you understand what this class of product costs to develop.
Program officer contact before writing. Five Institutes, four clinical trial postures, and two Institutes with brief published language. The call determines assignment, budget realism, and reviewability.
Common Reasons Applications Miss
Treating the Highlighted Topic as a NOFO and searching Grants.gov for a topic-specific number that does not exist
Proposing a clinical trial to NIAMS or NIDCR, which accept none under either parent announcement, making the application non-responsive and unreviewed
Proposing a clinical trial to NIAID through STTR, which it does not accept, when SBIR would have worked
Proposing an efficacy-powered or pivotal trial to NIBIB, which supports only early stage, feasibility, first-in-human, and safety trials informing technology development
Confusing SBIR Phase I and Phase II with clinical trial Phase I and Phase II, which are separate and unaligned numbering systems
Submitting the same delivery platform against multiple diseases and Institutes, which runs into the prohibition on derivative applications proposing a single product applicable to multiple purposes
Applying for STTR while more than 50 percent owned by a combination of venture capital, hedge fund, or private equity firms, which is an STTR eligibility bar even where SBIR would permit it
Designing a Phase II budget with costs concentrated in one year at NIAID, which will not generally allow more than $1,000,000 in total costs per year
Budgeting to the $700,000 Phase I ceiling rather than the roughly $400,000 that Institutes actually award
Omitting the fee from the budget or requesting the wrong level, neither correctable after submission
Referencing a Make America Healthy Again alignment that this topic, unlike most others in the cycle, does not claim
Implying a Phase II ends at an approved therapy, with no account of IND-enabling work, manufacturing, or the capital required to reach the clinic
Starting federal registrations after drafting begins, then missing the receipt date on an eRA Commons validation error
Frequently Asked Questions
Is this a grant I can apply to directly?
No. This is an NIH Highlighted Topic, which is a statement of scientific priority rather than a Notice of Funding Opportunity. You apply through a broad NIH announcement, and for small businesses that means the NIH SBIR or STTR parent announcement, requesting assignment to one of the five awarding Institutes.
Which funding opportunity number do I actually use?
For most small businesses it is PA-27-100, the NIH, CDC, and FDA Parent SBIR announcement covering R43 and R44 awards. If your project depends on a formal university or nonprofit research partner, use PA-27-102, the Parent STTR announcement covering R41 and R42. Confirm the active number at submission, since PA-27-100 closes in early April 2027 while this topic runs to September 2028.
Can I propose a clinical trial under this topic?
It depends entirely on the Institute and mechanism. NCI accepts clinical trials under both SBIR and STTR. NIBIB accepts only early stage trials such as feasibility, clinical Phase I, first-in-human, safety, or other small trials that inform early technology development, and will not support pivotal or efficacy-powered trials. NIAID accepts clinical trials under SBIR but not STTR. NIAMS and NIDCR accept none under either parent. Run the NIH clinical trial determination against your design before choosing an Institute.
Is an SBIR Phase I the same as a clinical Phase I trial?
No, and conflating them causes real problems. NIH small business phases are separate from and not aligned with clinical trial phases. An SBIR Phase I is a feasibility award. A clinical Phase I trial is a first-in-human safety study, which would typically be proposed within an SBIR Phase II, Direct to Phase II, or Fast-Track application, subject to the target Institute's clinical trial policy.
Which of the five Institutes should I target?
NCI for oncology, and the default for any project with a clinical component since it accepts trials without restriction. NIAID for infectious, autoimmune, and immune-mediated disease, especially where your advantage is specificity, cost reduction, access, or minimizing preconditioning. NIBIB for disease-agnostic enabling technology, synthetic biology, biomaterials, and evaluation platforms. NIAMS for rheumatic, autoimmune, autoinflammatory, and musculoskeletal disease. NIDCR for dental, oral, and craniofacial disease, and the only Institute here offering a stated funding advantage.
How much money can my company request?
The SBA statutory guidelines this cycle are $323,090 for Phase I and $2,153,927 for Phase II in total costs, including direct costs, indirect costs, and fee. NCI and NIAID are among the components listing Phase I headroom to $700,000, though NCI's own guidance generally funds waiver-eligible Phase I near $400,000 and Phase II up to $2,250,000. NIAID applies a per-year constraint of $1,000,000 in total costs on Phase II and Phase IIB. Confirm with your target Institute before setting a budget.
When is the deadline?
There is no deadline specific to this topic. You submit on the NIH standard small business receipt dates of January 5, April 5, and September 5 each year, with dates falling on weekends or federal holidays moving to the next business day. The topic expires September 2, 2028, making January 5, 2027 through April 5, 2028 the realistic competing cycles.
How long until I receive funding?
Plan on approximately 9 months from submission to award start. An application submitted in the January 2027 cycle would typically have an earliest possible start date in the fall of 2027.
Do I have to give up equity or match the funds?
No. NIH SBIR and STTR Phase I and Phase II awards are non-dilutive and require no cost share. The exception is the Phase IIB Strategic Breakthrough Award, which requires not less than 100 percent matching funds from new private capital or from a government source other than a Phase I or Phase II SBIR or STTR award.
My company is venture-backed. Are we still eligible?
For SBIR, possibly. Certain venture capital, hedge fund, and private equity ownership structures qualify under specific conditions, and complex cap tables should be checked against 13 CFR Part 121. For STTR, no: small business concerns more than 50 percent owned by multiple venture capital operating companies, hedge funds, private equity firms, or any combination of these are not eligible for the STTR program. This distinction affects venture-backed cell therapy companies more than most.
Can NIH funding cover IND-enabling studies and manufacturing?
Yes, primarily through the Commercialization Readiness Pilot. CRP supports later-stage work not typically fundable through Phase II or Phase IIB, and NIH names IND and IDE enabling studies, independent replication of key studies, clinical studies, manufacturing costs, and regulatory assistance among eligible activities. CRP permits substantial subcontracting, though the small business must maintain oversight and management of the research throughout the award.
Does my project have to target cancer?
No. The topic names cancer, autoimmune disease, infectious disease, age-related disease, and regenerative medicine, and covers T cells, NK cells, and macrophages. NIBIB's framing is explicitly disease-agnostic, NIAID covers infectious and immune-mediated disease, NIAMS covers rheumatic and musculoskeletal disease, and NIDCR covers dental, oral, and craniofacial conditions.
Does any Institute set aside dedicated funding for this topic?
Not guaranteed. NIDCR is the only participating Institute that stated it may give special consideration to meritorious applications in this topic area. NCI, NIAID, NIAMS, and NIBIB made no such statement. Treat the NIDCR statement as a favorable tilt rather than a reserved pool of money.
I already have feasibility data. Do I still need a Phase I?
Not necessarily. SBIR Direct to Phase II allows a company that has demonstrated the scientific and technical merit and feasibility normally expected from a Phase I, without having received a Phase I award for that project, to apply directly for Phase II. This authority is available for SBIR only and is not available under STTR. A validated delivery platform plus new in vivo immune cell transduction data is a common qualifying profile.
Does this topic align with the Make America Healthy Again initiative?
No. Unlike most NIH Highlighted Topics published in this cycle, this one is not issued under the MAHA initiative and lists no named policy alignments. Applicants should not reference an initiative alignment the topic does not claim.
What registrations do I need, and how long do they take?
SAM.gov with a Unique Entity ID, the SBA Company Registry, eRA Commons, and Grants.gov. eRA Commons access depends on completing the SBA Company Registry first, so the sequence matters. Allow at least six weeks, and start before you begin writing.
How BW&CO Helps
BW&CO is a non-dilutive federal funding advisory firm. We help deep-tech, biotech, medtech, and health technology founders convert agency priority signals like this one into funded awards.
On this topic the decisive work happens before drafting: resolving the clinical trial determination, selecting among five Institutes with four different clinical trial postures, choosing SBIR versus STTR against your ownership structure and your PI's employment, engaging program officers, and sequencing Phase I, Phase II, CRP, Phase IIB, and private capital into a financing plan that actually reaches the clinic. That work also includes Specific Aims development, full proposal build, budget and fee construction, commercialization planning, and Phase IIB matching capital positioning. Our team has helped clients secure more than $350 million in funding. Innovation Funding Simplified.
If you are developing an in vivo immune cell engineering platform and want a straight answer on which Institute to target, whether your clinical plan is reviewable where you intend to send it, and whether you are competitive for the January 5, 2027 cycle, contact us for a fit assessment.
