Serpin Peptide 16 Drug Asset Due Diligence Report 2026: Clinical, IP, Market, Deals, and Go/No-Go
This Serpin Peptide 16 Drug Asset Due Diligence Report was built with PatSnap Life Sciences MCP workflows. Drug & Asset MCP establishes identity, ownership and stage; Clinical Trials MCP checks design, endpoints and readouts; Company & Deal Intelligence MCP reconstructs transaction precedent. Explore the MCP servers used in this report.
Decision date: 18 September 2026. Currency fields are presented in US$ millions as returned by the deal dataset. This is a screening memorandum, not legal, medical, patent or investment advice.
Executive recommendation: CONDITIONAL GO
Decision memo
Advance with milestone-based economics while efficacy durability, safety differentiation, patent scope, and market positioning are validated.
The central underwriting question is whether Serpin Peptide 16 can convert its Synthetic peptide profile and LRP1 biology into clinically meaningful differentiation while preserving an investable safety, IP and commercial position.
1. Asset identity and development status
| Asset | Serpin Peptide 16 (query alias: Serpin Peptide 16) |
|---|---|
| Modality / target | Synthetic peptide; LRP1; LRP1 agonists |
| Highest global status | Phase 2 |
| Originator | Serpin Pharma, LLC |
| Active developers | Serpin Pharma, LLC, Dogwood Therapeutics, Inc. |
The MCP disease footprint includes Acute Lung Injury, Peripheral Nervous System Diseases, Chronic Kidney Diseases. The highest-phase flag is a useful orientation point, but the licensing case depends on indication-level evidence and rights, not the global label alone.
2. Clinical program: design and endpoint audit
| Registry | Phase | Status | Enrollment | Lead primary endpoint |
|---|---|---|---|---|
| NCT07661940 | Phase 2 | Not yet recruiting | 120 | Primary endpoint not disclosed in English source |
| NCT05135624 | Phase 1 | Terminated | 2 | Primary endpoint not disclosed in English source |
| NCT04225533 | Phase 1/2 | Completed | 10 | Primary endpoint not disclosed in English source |
The trial set should be diligenced for randomization, comparator relevance, endpoint hierarchy, analysis population, multiplicity, geographic mix and readout timing. For early-stage studies, safety and dose selection can be as decision-critical as response rate.
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3. Clinical readouts: what is known
SP16 Inflammatory Response Inhibition Trial
Phase 1/2; n=10; evaluation: Not stated in English source. Reported fields: Area Under the Curve (AUC) for C-reactive Protein (CRP)(Median) = 133 mg*day/L (IQR, 46 - 528)
Safety, tolerability and effects of a single subcutaneous administration of SP16-a SERPIN-like, small peptide agonist of the Low-Density Lipoprotein-like Receptor 1 -on the acute inflammatory response in patients with ST-segment elevation Myocardial Infarction (STEMI).
Phase 1/2; n=10; evaluation: Positive. Reported fields: Adverse Event: treatment-related adverse events = All ten patients with STEMI received subcutaneous administration of SP16, 381 [272 to 478] minutes after PCI, without any treatment-related adverse events ; Adverse Event: treatment-related adverse events = All ten patients with STEMI received subcutaneous administration of SP16, 381 [272 to 478] minutes after PCI, without any treatment-related adverse events
A phase 1 clinical trial of SP16, a first-in-class anti-inflammatory LRP1 agonist, in healthy volunteers
Phase 1; n=24; evaluation: Positive. Reported fields: AE(Injection site pain) = 15 Event ; AE(Injection site pain) = 3 Event
These fields are structured evidence signals, not a substitute for statistical review. The next diligence pass should reconcile denominators, confidence intervals, follow-up, censoring, dose cohorts and treatment-emergent toxicity against the original abstract, registry and protocol.
4. Market and competitive position
Serpin Peptide 16 addresses Acute Lung Injury, Peripheral Nervous System Diseases, Chronic Kidney Diseases. Commercial attractiveness rests on addressable patients, treatment-line placement, duration, administration burden, pricing and displacement of entrenched standards. The modality—Synthetic peptide—must demonstrate a benefit large enough to offset class-specific safety and operational costs.
The MCP screen returned 1 matched transaction record(s) under the scope “asset-specific.” Partner activity is a market-validation signal, but it does not establish net present value.
5. Transaction precedent and economics
| Date | Transaction | Phase at deal | Disclosed economics |
|---|---|---|---|
| 2025-09-29 | Dogwood Therapeutics Secures Exclusive Worldwide, Royalty Free License to Develop and Commercialize SP16 as a Treatment for Cancer Related Pain in an All-Stock Transaction Underscoring the Company’s Dedication to Improving the Lives of Cancer Patients | Phase 2 | Financial terms not disclosed |
Headline values are not directly comparable. Diligence should normalize upfront cash, equity, development and sales milestones, tiered royalties, opt-in mechanics, cost sharing, change-of-control clauses and geography.
6. IP and freedom-to-operate screen
No asset-specific patent-application milestone appeared in the returned milestone slice. That absence is not a freedom-to-operate conclusion; a dedicated family, claim, ownership, expiry, and legal-status search remains mandatory before signing.
The claim chart should separately test composition or sequence coverage, formulation and dosing, indication and biomarker claims, combinations, manufacturing know-how, prosecution history, term extensions and third-party blocking rights.
7. Principal risks and diligence gates
- Clinical differentiation versus current standards and pipeline competitors
- Safety, dose optimization, and long-term tolerability
- Patent scope, territorial rights, manufacturing, and commercial positioning
Cross-functional diligence should also test CMC comparability, supply chain, pharmacovigilance, regulatory correspondence, data integrity, investigator concentration, partner obligations and change-of-control restrictions.
8. Final go/no-go memorandum
CONDITIONAL GO
Advance with milestone-based economics while efficacy durability, safety differentiation, patent scope, and market positioning are validated.
Required pre-signing gates: reproduce key efficacy analyses; complete an indication-specific safety review; run a full patent-family and freedom-to-operate search; model risk-adjusted economics by territory; and reconcile all rights, sublicenses and encumbrances.
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Data provenance: PatSnap Drug & Asset MCP, Clinical Trials MCP, and Company & Deal Intelligence MCP; accessed 2026-09-18. Counts and status fields may change as source records update.
