This Ulotaront 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: 15 July 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.
Phase 3
Highest phase
31
Registered trials
13
Result records
2
Matched deals
Advance diligence: development maturity and available evidence support continued investment, subject to indication-specific safety, IP, and commercial gates.
The central underwriting question is whether Ulotaront can convert its Small molecule drug profile and 5-HT1A receptor x TAAR1 biology into clinically meaningful differentiation while preserving an investable safety, IP and commercial position.
| Asset | Ulotaront (query alias: ulotaront) |
|---|---|
| Modality / target | Small molecule drug; 5-HT1A receptor x TAAR1; 5-HT1A receptor agonists, TAAR1 agonists |
| Highest global status | Phase 3 |
| Originator | Sumitomo Pharma Co., Ltd. |
| Active developers | Otsuka Pharmaceutical Development & Commercialization, Inc., Sumitomo Pharma America, Inc., Otsuka Pharmaceutical Co., Ltd. |
The MCP disease footprint includes Schizophrenia, Generalized anxiety disorder, Depressive Disorder, Major. 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.
| Registry | Phase | Status | Enrollment | Lead primary endpoint |
|---|---|---|---|---|
| JPRN-jRCT2031250398 | Phase 3 | Pending | 522 | 急性期の統合失調症患者におけるSEP-363856(75及び100 mg/日)の有効性をプラセボと比較して評価する |
| NCT06894212 | Phase 3 | Recruiting | 522 | The change from baseline in Positive And Negative Syndrome Scale (PANSS) total score at Week 6 |
| NCT07225712 | Phase 3 | Recruiting | 100 | ・Incidence of treatment-emergent adverse events (TEAEs) |
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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Phase 3; n=464; evaluation: not stated. Reported fields: Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean) = -14.3 score on a scale (Standard Error, 1.47); Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean): Least Square (LS) Mean Difference = -2.1(95% CI, -5.7 to 1.5), P-Value = 0.132; LS Mean Difference = -3.8(95% CI, -7.5 to -0.1), P-Value = 0.041; Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean) = -16.4 score on a scale (Standard Error, 1.49)
Phase 3; n=463; evaluation: not stated. Reported fields: Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean): Least Square (LS) Mean Difference = 2.4(95% CI, -1.9 to 6.7), P-Value = 0.886; LS Mean Difference = -0.3(95% CI, -4.6 to 4.0), P-Value = 0.842; Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean) = -19.6 score on a scale (Standard Error, 1.56); Change From Baseline in PANSS Total Score at Week 6(Least Squares Mean) = -19.3 score on a scale (Standard Error, 1.55)
Phase 3; n=305; evaluation: not stated. Reported fields: AE = 153 Participants ; -; AE = 77 Participants
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.
Ulotaront addresses Schizophrenia, Generalized anxiety disorder, Depressive Disorder, Major. Commercial attractiveness rests on addressable biomarker-positive patients, treatment-line placement, duration, administration burden, pricing and displacement of entrenched standards. The modality—Small molecule drug—must demonstrate a benefit large enough to offset class-specific safety and operational costs.
The strongest market-validation signal in this screen is partner behavior: 2 matched transaction record(s) indicate that sophisticated counterparties have assigned strategic value to the asset or its rights. That does not establish net present value; probability of success, remaining R&D spend, royalties, cost sharing and territorial scope still need modeling.
| Date | Transaction | Phase at deal | Disclosed economics |
|---|---|---|---|
| 2021-09-30 | Sumitomo Dainippon Pharma and Otsuka Announce a Worldwide Collaboration and License Agreement for Four Psychiatry and Neurology Compounds | Phase 1 | US$270.0M upfront; US$620.0M milestones |
| 2007-08-01 | PsychoGenics and Sunovion entered into a drug discovery and development agreement | Discovery | 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.
The milestone feed surfaced a patent-application signal described as “Ulotaront hydrochloride manufacturing process”. The milestone feed surfaced a patent-application signal described as “Methods of switching neuropsychiatric medications using ulotaront”. The milestone feed surfaced a patent-application signal described as “Ulotaront for treating anxiety and associated conditions”.
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. Confirm that licensed patents, data and know-how track every granted territory and field.
Cross-functional diligence should also test CMC comparability, supply chain, pharmacovigilance, regulatory correspondence, data integrity, investigator concentration, partner obligations and change-of-control restrictions.
Advance diligence: development maturity and available evidence support continued investment, subject to indication-specific safety, IP, and commercial gates.
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 15 July 2026. Counts and status fields may change as source records update.