SC-101 Drug Asset Due Diligence Report 2026: Clinical, IP, Market, Deals, and Go/No-Go
This SC-101 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: 16 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 SC-101 can convert its Peptide drug conjugates profile and nectin-4 biology into clinically meaningful differentiation while preserving an investable safety, IP and commercial position.
1. Asset identity and development status
| Asset | SC-101 (query alias: SC-101) |
|---|---|
| Modality / target | Peptide drug conjugates; nectin-4; nectin-4 modulators |
| Highest global status | Phase 2 |
| Originator | Tianjin Conjustar Biotechnology Co., Ltd. |
| Active developers | ConjuStar (Zhuhai) Biologics Co., Ltd., Tianjin Conjustar Biotechnology Co., Ltd. |
The MCP disease footprint includes Hormone receptor positive breast cancer, Triple Negative Breast Cancer, Nectin-4 positive Advanced Malignant Solid Tumor. 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 |
|---|---|---|---|---|
| ChiCTR2600128129 | Phase 2 | Recruiting | 40 | Primary endpoint not disclosed in English source |
| NCT07080619 | Phase 2 | Not yet recruiting | 120 | Primary endpoint not disclosed in English source |
| NCT06220838 | Phase 1 | Recruiting | 100 | 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
963P - SC-101, a Nectin-4-targeting peptide-drug conjugate (PDC), in patients (pts) with advanced or metastatic solid tumors: Results from dose escalation study
Phase 1; n=15; evaluation: Positive. Reported fields: MTD = NR
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
SC-101 addresses Hormone receptor positive breast cancer, Triple Negative Breast Cancer, Nectin-4 positive Advanced Malignant Solid Tumor. Commercial attractiveness rests on addressable patients, treatment-line placement, duration, administration burden, pricing and displacement of entrenched standards. The modality—Peptide drug conjugates—must demonstrate a benefit large enough to offset class-specific safety and operational costs.
The MCP screen returned 10 matched transaction record(s) under the scope “target-level comparable: nectin-4.” Partner activity is a market-validation signal, but it does not establish net present value.
5. Transaction precedent and economics
Transaction-scope note: No direct asset-specific transaction was returned. The table below shows target-level comparable: nectin-4 records as comparable precedents only.
| Date | Transaction | Phase at deal | Disclosed economics |
|---|---|---|---|
| 2026-05-27 | Aptevo and Niowave Launch Strategic Collaboration for Radiopharmaceutical Therapeutic Development, Includes Strategic Equity Investment by Niowave at Closing | Discovery | Financial terms not disclosed |
| 2024-11-18 | VelaVigo Announces Exclusive Option Agreement with Avenzo to License a Potential First-in-Class Nectin4/TROP2 Bispecific Antibody-Drug Conjugate | Preclinical | US$50.0M upfront; US$750.0M milestones |
| 2024-09-23 | BioAtla and Context Therapeutics Announce Exclusive Worldwide License Agreement to Develop and Commercialize BA3362, a Nectin-4 x CD3 T Cell Engaging Antibody | Preclinical | US$19.5M upfront |
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
The milestone feed surfaced a patent-application signal described as “Protein formulations”. The milestone feed surfaced a patent-application signal described as “Protein Formulations”.
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 2026-09-16. Counts and status fields may change as source records update.
