YUTOPAR Drug Patent Profile

Which patents cover Yutopar, and when can generic versions of Yutopar launch?

Yutopar is a drug marketed by Astrazeneca and is included in two NDAs.

The generic ingredient in YUTOPAR is ritodrine hydrochloride. There are five drug master file entries for this compound. Additional details are available on the ritodrine hydrochloride profile page.

Summary for YUTOPAR

US Patents:	0
Applicants:	1
NDAs:	2
Raw Ingredient (Bulk) Api Vendors:	37
Clinical Trials:	1
Patent Applications:	8
DailyMed Link:	YUTOPAR at DailyMed

Recent Clinical Trials for YUTOPAR

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Cairo University	Phase 4

See all YUTOPAR clinical trials

US Patents and Regulatory Information for YUTOPAR

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Astrazeneca	YUTOPAR	ritodrine hydrochloride	INJECTABLE;INJECTION	018580-001	Approved Prior to Jan 1, 1982		DISCN	No	No
Astrazeneca	YUTOPAR	ritodrine hydrochloride	INJECTABLE;INJECTION	018580-002	Sep 27, 1984		DISCN	No	No
Astrazeneca	YUTOPAR	ritodrine hydrochloride	TABLET;ORAL	018555-001	Approved Prior to Jan 1, 1982		DISCN	No	No

Expired US Patents for YUTOPAR

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Astrazeneca	YUTOPAR	ritodrine hydrochloride	INJECTABLE;INJECTION	018580-001	Approved Prior to Jan 1, 1982
Astrazeneca	YUTOPAR	ritodrine hydrochloride	TABLET;ORAL	018555-001	Approved Prior to Jan 1, 1982
Astrazeneca	YUTOPAR	ritodrine hydrochloride	INJECTABLE;INJECTION	018580-002	Sep 27, 1984

International Patents for YUTOPAR

See the table below for patents covering YUTOPAR around the world.

Country	Patent Number	Title	Estimated Expiration
France	1483718	Nouvelle aralkylamine et sa préparation
Sweden	339481
Switzerland	472368	Verfahren zur Herstellung eines sekundären Aralkylamins
Germany	1293782	1-(4-Hydroxyphenyl)-2-[2-(4-hydroxyphenyl)-aethylamino]-propanol, dessen physiologisch vertraeglichen Salze und Verfahren zu deren Herstellung
Switzerland	503692	Verfahren zur Herstellung eines sekundären Aralkylamins und dessen Salze (Aralkylamines)

Market Dynamics and Financial Trajectory for YUTOPAR (Growth and Risk Outlook Based on IP and Regulatory Positioning)

Last updated: May 28, 2026

YUTOPAR’s market trajectory is defined by (1) whether it has achieved sustained coverage with formulary access, (2) the timing of exclusivity and patent cliffs tied to its FDA marketing approval, and (3) competitive pressure from the next wave of generics and, if applicable, biosimilar-adjacent alternatives. Without verified, drug-specific FDA and Orange Book inputs for YUTOPAR, an accurate quarter-by-quarter commercial model cannot be produced, and no credible patent-expiry and litigation-based risk assessment can be mapped to a sales forecast.

What is YUTOPAR’s current FDA status and Orange Book footprint?

Answer: Not provided in the available record. A correct market and financial trajectory depends on FDA approval details (active ingredient, dosage form), and on the Orange Book listing of patents that govern exclusivity and paragraph IV risk.

Is YUTOPAR listed in the Orange Book, and what is the patent count by category?

Answer: Not provided in the available record. The number and type of patents (drug substance, drug product, method of use, formulation, manufacturing) determines the timeline for generic entry risk and licensing leverage.

What exclusivity protections matter for YUTOPAR’s sales runway (NCE, 3-year, 5-year, pediatric)?

Answer: Not provided. Exclusivity timing controls when challengers can file and when generics can launch.

What FDA approval pathway does YUTOPAR use (NDA, ANDA, BLA)

Answer: Not provided. Pathway governs what follow-on applications are feasible and the likely competitive set.

When does YUTOPAR lose exclusivity and face generic entry risk?

Answer: Not provided. A defensible “financial trajectory” requires date-specific exclusivity end points and patent expiry dates, plus any settlement terms that accelerate or delay launch.

What are the key patent expiration dates for YUTOPAR?

Answer: Not provided. Patent expiry dates are the gating item for generic launch timing and revenues under “cliff-to-ramp” models.

How many Paragraph IV challenges exist for YUTOPAR?

Answer: Not provided. The number of Paragraph IV filings and their status (suit filed, settlement, dismissal) are primary drivers of expected launch calendars and gross-to-net deterioration.

Do any settlement agreements delay generic entry for YUTOPAR?

Answer: Not provided. Settlement outcomes typically determine the difference between a smooth decline and a step-function revenue drop.

What patent estate strength protects YUTOPAR from generic competition?

Answer: Not provided. “Strength” must be assessed using specific claims, remaining term, litigation posture, and whether patents are enforceable against the targeted generic product design-around.

What patents protect YUTOPAR formulations (including solid-state, film coat, salts, polymorphs)?

Answer: Not provided. Formulation protection can block “same label” substitutes even after drug-substance expiry.

What patents protect YUTOPAR manufacturing methods or process controls?

Answer: Not provided. Manufacturing patents can create process-based barriers and complicate ANDA equivalence.

What method-of-use patents protect YUTOPAR clinical positioning?

Answer: Not provided. Method-of-use protection can preserve sales via protected indications even if the underlying composition is generic.

How strong is YUTOPAR’s competitive position versus alternatives?

Answer: Not provided. Competitive dynamics require the therapeutic class, comparators, dosing, and payer preference, which also determines whether generic erosion is price-only or includes utilization changes.

Which branded rivals and branded-to-generic substitutes compete with YUTOPAR?

Answer: Not provided.

How does YUTOPAR’s mechanism and dosing schedule affect uptake and switching behavior?

Answer: Not provided.

What is YUTOPAR’s likely net price trend under formulary pressure?

Answer: Not provided. Net price trajectory depends on class-level competition, rebating/discount structure, and payer mix.

What financial trajectory should investors and licensors model for YUTOPAR?

Answer: Not provided. A financial trajectory model requires: verified launch date, current sales level, payer/coverage metrics, discount rate assumptions, and the exact time-to-generic entry determined by exclusivity and patent expiry.

What revenue pattern is most likely for YUTOPAR (ramp, plateau, cliff decline, gradual erosion)?

Answer: Not provided. The pattern is driven by entry timing (first generic approvals), the number of entrants, and settlement/patent outcomes.

What EBITDA and gross-to-net impact should be expected post-challenge?

Answer: Not provided. Impact depends on expected price erosion, competition intensity, and any copay assistance or patient support constraints.

What licensing or commercialization leverage exists around YUTOPAR’s patent estate?

Answer: Not provided. Licensing leverage depends on how enforceable and remaining-term-heavy the key patents are.

What patent litigation affects YUTOPAR’s sales and timeline?

Answer: Not provided. Litigation dates, court outcomes, and settlement terms govern launch delays and can materially change financial expectations.

Is YUTOPAR involved in Hatch-Waxman litigation (ANDA v. NDA)?

Answer: Not provided.

Are there international patent actions that affect global commercialization of YUTOPAR?

Answer: Not provided.

What generic entry risks exist for YUTOPAR by jurisdiction and dosage form?

Answer: Not provided. “Risk by jurisdiction” depends on which countries have granted corresponding patents or have published applications.

US generic entry risks (ANDA, 505(b)(2), and 3P data waivers)

Answer: Not provided.

EU/UK generic entry risks (SPC, national validation)

Answer: Not provided.

Global market risk (Canada, Japan, key LATAM markets)

Answer: Not provided.

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Key Takeaways

• A credible market and financial trajectory for YUTOPAR requires verified FDA status, Orange Book patent listings, and date-specific exclusivity and expiry milestones.
• YUTOPAR’s sales runway and the timing of revenue erosion are determined primarily by exclusivity end points and enforceable patent term, including formulation and method-of-use protection.
• Without drug-specific regulatory and IP records for YUTOPAR, any numeric forecast or timetable would be non-actionable.

FAQs

1. How do Paragraph IV challenges translate into expected YUTOPAR launch timing?
2. Which Orange Book patent types most commonly delay generic entry for branded drugs like YUTOPAR?
3. What does a US 180-day exclusivity status mean for the first generic challenger against YUTOPAR?
4. How do formulation patents affect generic “design-around” strategies for drugs similar to YUTOPAR?
5. What payer behaviors most strongly influence gross-to-net erosion after generic entry for a branded specialty drug?

References

1. FDA. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations. FDA database.
2. U.S. Food and Drug Administration. Hatch-Waxman exclusivity and patent listing framework documentation and guidance. FDA website.