Niche Biopharmaceuticals
Investor Brief
Investor Presentation · 2026

A new class of antimicrobial.

Niche Biopharmaceuticals is developing NB2 — a topical small-molecule new chemical entity with coupled anti-infective and immunomodulatory action. Resistance-resilient. Pre-IND complete. Two lead indications: atopic dermatitis and diabetic foot ulcers.

NB2-AD NB2-DFU CAIT platform
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52wk
No resistance development at sub-MBC
40+
Bacterial organisms with µg/mL activity
2
Lead indications: AD + DFU
3
Issued US composition & use patents
What we do

Two problems. One molecule.

NB2 — a Coupled Anti-Infective Immunomodulatory Therapeutic — pairs direct antimicrobial action with built-in anti-inflammatory effect in a single new chemical entity.

Broad-spectrum potency

µg/mL activity against more than forty bacterial organisms — including AD-driving S. aureus and DFU-implicated strains — plus enveloped viruses such as SARS-CoV-2 and influenza.

Resistance-resilient

52 weeks of continuous passage at 50% of the MBC against S. aureus MN8 produced no observed resistance development — a property of the chemical class.

Dual mechanism by design

Anti-infective and immunomodulatory action coupled in the same molecule — not delivered as a combination. Toxin synthesis shut down at 1/15 of MBC.

Where we are

From bench to first-in-human.

A pre-IND meeting was completed with FDA Dermatology in May 2024 on the lead atopic dermatitis program. A parallel DFU pre-IND meeting is planned post-financing close.

Our Science

The CAIT class & NB2.

CAIT — Coupled Anti-Infective Immunomodulatory Therapeutic — is a proprietary chemical class invented at Niche. NB2 is a lipase-resistant analogue of glycerol monolaurate (GML), the antimicrobial scaffold in human breast milk.

The Compound

NB2 — a new chemical entity.

NB2 is classified as a new chemical entity per FDA regulations, qualifying for 5-year NCE exclusivity at approval. It is structurally optimized from glycerol monolaurate (GML) — the antimicrobial scaffold in human breast milk — to be fully lipase-resistant.

Class
CAIT — Coupled Anti-Infective Immunomodulatory TherapeuticProprietary chemical class invented at Niche.
Lead
NB2 — New Chemical EntityFirst synthesized at Niche to >99% purity.
Activity
µg/mL range, > 40 organismsPlus enveloped viruses such as SARS-CoV-2 and influenza.
Resistance
None observed at 52 weeks, 50% MBCContinuous-passage culture against S. aureus MN8.
Mechanism
Coupled anti-infective + anti-inflammatoryIn one molecule — not a combination product.
Mechanism

Two problems, one molecule.

01

Direct antimicrobial activity

µg/mL bactericidal potency against more than 40 bacterial organisms. Activity extends to enveloped viruses including SARS-CoV-2 and influenza.

02

Coupled anti-inflammatory effect

Toxin production (TSST-1 and other superantigens) is shut down at sub-MBC levels — addressing the inflammatory driver of disease in tandem with infection. Built into the same molecule, not delivered as a combination.

03

Resistance-resilient by design

Lipase resistance combined with multi-target action limits bacterial escape pathways. The 52-week no-resistance result is a property of the chemical class, applicable across S. aureus-driven indications.

The Headline Result

52 weeks. No resistance.

Antimicrobial resistance is the dominant failure mode in anti-infective drug development. NB2's chemical class did not select for resistance under continuous selective pressure — a foundational property that motivates both lead indications.

Fig. 02 — Continuous-passage assay, illustrative
MBC trajectory: NB2 vs. comparator class
COMPARATOR ↑ resistant NB2 — flat WK 0 WK 13 WK 26 WK 39 WK 52 16× 64× ≥256× FOLD-CHANGE IN MBC

Compounds in the CAIT class were cultured continuously at 50% of the minimum bactericidal concentration — a pressure regime designed to select for resistant survivors. Over 52 weeks the bacteria did not develop resistance.

This is not a single-organism result; it is a property of the chemical class. MRSA panel expansion is planned in Year 1 to confirm class-level validation across clinical isolates.

A resistance-resilient antimicrobial that also resolves inflammation — in one molecule — is what the field has wanted for a generation.
Preclinical Data

5–10× more potent. Full lipase resistance. Tox clean.

In vitro · S. aureus MN8
Potency vs. GML reference
Compound MIC (µg/mL) MBC (µg/mL) Toxin inh.
GML 300 300 16
NB2 31 63 <4
Toxin synthesis shut down at 1/15 of MBC — anti-virulence at sub-killing dose.
In vivo & tox

10⁹-fold S. aureus reduction.

In the validated rabbit AD model, NB2 produced a 10⁵-fold S. aureus reduction at 4 hours and a 10⁹-fold reduction at 8 hours, with clear time- and dose-dependent response across 15 and 30 mg/mL doses.

The minipig dermal tox study (completed February 2025) established NOAEL at 25 mg/kg BID over 7 days at 10% BSA, with plasma exposure of 2–6 ng/mL and no accumulation. Top proposed clinical dose: 15 mg/mL — well below NOAEL margin.

25
NOAEL (mg/kg)
2–6
Plasma (ng/mL)
15
Top dose (mg/mL)
Pipeline

Two lead indications. One mechanism. Platform breadth behind it.

NB2 targets S. aureus and its inflammatory drivers across two large, underserved markets — with extensible application across 10+ rare dermatology indications and the type 2 diabetes superantigen pathway.

Program
Indication
Modality
Stage
Next milestone
NB2-ADLead program · pre-IND complete
Atopic dermatitis
Topical small molecule
Discovery Preclinical Phase 1 Phase 2 Phase 3
IND filing → Phase 1A
NB2-DFULead program · preclinical
Diabetic foot ulcer
Topical small molecule
Discovery Preclinical Phase 1 Phase 2 Phase 3
FDA Type B pre-IND meeting
CAIT platform10+ rare derm + T2D mechanism
Multi-indication
Topical small molecule
Discovery Preclinical Phase 1 Phase 2 Phase 3
Indication prioritization
Platform breadth — additional indications under evaluation
Bullous pemphigoid Pemphigoid Job Syndrome Psoriasis Ichthyosis Desquamative inflammatory vaginitis Localized scleroderma Dermatitis herpetiformis Chronic lupus with skin involvement Cutaneous T-cell lymphoma Sjögren's syndrome Type 2 diabetes superantigen pathway
Lead Indication · NB2-AD

Atopic dermatitis

33M Americans with AD. 6M underserved by current therapy. NB2 targets the S. aureus driver.
Patient funnel

From 33M to Phase 2 PoC trial-eligible

33M
Total US AD patients
Atopic dermatitis prevalence — 10% of US population
6M
Steroid-intolerant
Topical steroids contraindicated due to toxicity
~1M
Active S. aureus infection
Overt skin infection requiring treatment
~200K
P2 PoC trial-eligible
Mod-severe AD + active S. aureus burden
Positioning vs. Dupixent

Topical convenience. Differentiated MoA.

DUPIXENT
IL-4Rα biologic (Sanofi/Regeneron)
$40,000
Injectable, every 2 weeks
NB2 (target)
Topical small-molecule NCE
$9,800
Topical, course-based
Schlievert (ADRN / NIH-funded) co-inventor — directly connects NB2 to the "atopic march" thesis and the leading academic network in AD.
Lead Indication · NB2-DFU

Diabetic foot ulcers

No breakthrough therapy in 60 years. NB2 attacks the S. aureus driver — and the superantigens that block wound healing.
~2M
US patients/yr
develop foot ulcers
$10B
Annual US cost
direct healthcare burden
30%
5-yr mortality
comparable to many cancers
60yr+
No breakthrough
in published trials

Why NB2 should work

01 · Pathogen

S. aureus drives DFU

The majority of DFUs are infected with S. aureus producing superantigens (Schlievert lab, JID 2014).

02 · Healing block

Superantigens block healing

Demonstrated in vitro and in vivo (Schlievert lab, Biochemistry 2015). Until S. aureus and its superantigens are cleared, the wound does not close.

03 · NB2 does both

The two-pronged action

NB2 kills S. aureus and inhibits superantigen synthesis at sub-MBC — the exact mechanism DFU requires.

Standard of care
Debridement + offloading + systemic antibiotics — no effective topical breakthrough therapy
Regulatory path
Topical NCE, 505(b)(1) NDA; QIDP / Breakthrough Designation explorability under evaluation
Endpoint
% wound closure at 12 weeks — well-validated, modest n required
Leadership

Founders and board with 15+ FDA approvals.

A team that has registered more than fifteen products with FDA generating over $3 billion in annual sales — applied to a novel chemical class with a real differentiator.

Dayton Reardan, PhD, RAC
Chairman, Co-founder

Dayton Reardan, PhD, RAC

Inventor on issued composition-of-matter and use patents covering the CAIT class. Regulatory Affairs Certified. Led the FDA pre-IND meeting on the lead AD program in May 2024.

Patrick Schlievert, PhD
CSO, Co-founder

Patrick Schlievert, PhD

Member of the NIH-funded Atopic Dermatitis Research Network (ADRN). 30+ years of S. aureus pathogenesis research. Author on the foundational DFU mechanism papers (JID 2014; Biochemistry 2015).

Dan Saccani
Chief Financial Officer

Dan Saccani

Biotech finance, operations, and capital-raising experience.

Paul Brennan, PhD
Board Member

Paul Brennan, PhD

Drug development and regulatory experience across multiple FDA filings.

Robert Klem, PhD
Board Member

Robert Klem, PhD

Biotech management and commercial leadership across multiple ventures.

15+
FDA approvals registered
$3B+
Annual product sales
70+
Issued US patents
Entity
Niche Biopharmaceuticals LLC
Jurisdiction
Delaware LLC, doing business in Minnesota
Office
Shorewood, Minnesota, USA
Intellectual Property

Three issued US patents.

Broad composition-of-matter and use claims covering the CAIT chemical class. International filings pending.

Issued · US
11,365,176
Composition of matter and use claims covering the CAIT chemical class.
Issued · US
11,572,342
Composition of matter and use claims covering the CAIT chemical class.
Issued · US
11,873,272
Composition of matter and use claims covering the CAIT chemical class.
Clinical development plan
STAGE 1
Pre-IND
✓ May 2024
2
STAGE 2
IND filing
6–9 mo post-close
3
STAGE 3
Phase 1A
12 healthy vol.
4
STAGE 4
Phase 1B
36 AD patients
5
STAGE 5
Phase 2 PoC
114 patients
Pre-IND outcome — FDA Dermatology, May 22, 2024
PATHWAY
505(b)(1) NCE; 5-yr NCE exclusivity at approval
DESIGN
Phase 1A: 12 healthy volunteers, 2-week treatment, safety + PK
BRIEFING
Phase 1B + Phase 2 designs reviewed and broadly accepted
POSTURE
No major CMC or tox concerns flagged
DFU PATH
Parallel pre-IND meeting planned post-financing close
EXPEDITED
QIDP / Breakthrough explorability for DFU under evaluation
May 2024
Pre-IND meeting completed

FDA Dermatology was receptive and supportive of the AD development plan.

Feb 2025
Minipig dermal tox complete

NOAEL 25 mg/kg BID over 7 days, 10% BSA. Plasma 2–6 ng/mL.

Designation
New chemical entity

5-year NCE exclusivity available at approval. QIDP/Breakthrough explorability for DFU under evaluation.

The Opportunity

Two large, underserved markets. Platform optionality on top.

Atopic dermatitis — peak US revenue ramp
$6.5B

Y5 projection at 5% market share, $9,800/treatment, 6.6M moderate-to-severe AD patients with steroid intolerance / active S. aureus.

$1.3B
Y1
$2.6B
Y2
$3.9B
Y3
$5.2B
Y4
$6.5B
Y5
DFU opportunity context
$10B

Annual US healthcare cost of diabetic foot ulcers. No approved breakthrough topical therapy — pricing power and reimbursement leverage are significant.

~2M
Incident US patients/year
30%
5-year mortality
Comparable transactions
Eucrisa → Pfizer (Anacor)
$5.2B · 2016
Dermavant → Organon
$1.2B · 2024
Opzelura — Incyte derm franchise
Multi-billion franchise
Use of Proceeds

$13–15M to Phase 2 PoC across two tranches.

Capital-efficient at 5–10× comparable derm programs. ~$400K cash burn to date.

Total program · two tranches over 2–3 years
$13–15M

To advance NB2 through Phase 2 proof-of-concept in atopic dermatitis, with a parallel DFU pre-IND meeting and IND-enabling work.

Tranche 1 · IND + Phase 1A
$5M
GLP tox · CMC manufacture · IND filing · Phase 1A initiation
Catalyst: Phase 1A safety readout · ~14 months
Tranche 2 · Phase 1B + Phase 2 PoC
$8–10M
Phase 1B (36 AD pts) · Phase 2 PoC (114 pts) · GMP transfer
Catalyst: Phase 2 PoC topline · ~30 months

Use-of-proceeds shown is illustrative; final allocation set in definitive subscription documentation.

Open to qualified investors.

Niche is currently raising to advance NB2 through Phase 2 PoC. We welcome inquiries from accredited investors, family offices, and strategic partners aligned with anti-infective and dermatology programs.

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Contact

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Inquiries
Office
22345 Bracketts Road
Shorewood, MN 55331 · USA
Entity
Niche Biopharmaceuticals LLCDelaware LLC, doing business in Minnesota
Founder
Dayton T. Reardan, PhD, RACChairman & Founder
CSO
Patrick Schlievert, PhDChief Science Officer & Co-founder

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