Last Updated: August 10, 2026

CLINICAL TRIALS PROFILE FOR ROZEREM


✉ Email this page to a colleague

« Back to Dashboard


505(b)(2) Clinical Trials for ROZEREM

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials
Trial Type Trial ID Title Status Sponsor Phase Start Date Summary
OTC NCT02840591 ↗ Ramelteon and Citicoline for Delirium Withdrawn University of Texas Southwestern Medical Center Phase 4 2016-07-01 Primary aim of this study is to assess the feasibility of conducting clinical research for delirium (confusion due to medical problems) at Clements University Hospital in Dallas, Texas. A secondary aim is to assess whether an FDA-approved sleeping aid called Ramelteon or an over-the-counter supplement called Citicoline are safe and beneficial in delirium.
>Trial Type >Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for ROZEREM

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00237497 ↗ Safety and Efficacy of Ramelteon in Adults With Chronic Insomnia Completed Takeda Phase 3 2005-07-01 The purpose of the study is to evaluate the safety and efficacy of Ramelteon, once daily (QD), compared to placebo with Zopiclone in adults with chronic insomnia
NCT00247390 ↗ Long-Term Efficacy and Safety of Ramelteon in Adults With Chronic Insomnia. Completed Takeda Phase 3 2005-07-01 The purpose of this study to determine the long-term efficacy and safety of ramelteon, once daily (QD).
NCT00316992 ↗ Safety of Ramelteon in Subjects With Chronic Obstructive Pulmonary Disease Completed Takeda Phase 4 2006-04-01 The purpose of this study is to determine if ramelteon has respiratory depressant effects in subjects with moderate to severe chronic obstructive pulmonary disease.
NCT00325728 ↗ Efficacy and Safety of Ramelteon in Subjects With Mild to Moderate Alzheimer's Disease Completed Takeda Phase 2 2006-03-21 The purpose of this study is to determine the efficacy of ramelteon, once daily (QD), in subjects with mild to moderate Alzheimer's Disease and sleep disturbance
NCT00337272 ↗ Treating Chronic Insomnia in Breast Cancer Patients Terminated Takeda Pharmaceuticals North America, Inc. Phase 4 2006-08-01 This study is being conducted to evaluate the effectiveness of ramelteon 8mgs in the treatment of insomnia in patients that have completed their first chemotherapy treatment for breast cancer.
NCT00337272 ↗ Treating Chronic Insomnia in Breast Cancer Patients Terminated Accelerated Community Oncology Research Network Phase 4 2006-08-01 This study is being conducted to evaluate the effectiveness of ramelteon 8mgs in the treatment of insomnia in patients that have completed their first chemotherapy treatment for breast cancer.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for ROZEREM

Condition Name

Condition Name for ROZEREM
Intervention Trials
Insomnia 13
Chronic Insomnia 7
Delirium 4
Bipolar Disorder 4
[disabled in preview] 1
This preview shows a limited data set
Subscribe for full access, or try a Trial

Condition MeSH

Condition MeSH for ROZEREM
Intervention Trials
Sleep Initiation and Maintenance Disorders 24
Disease 10
Delirium 5
Bipolar Disorder 4
[disabled in preview] 1
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Locations for ROZEREM

Trials by Country

Trials by Country for ROZEREM
Location Trials
United States 193
Russian Federation 5
Japan 4
Ukraine 3
United Kingdom 3
This preview shows a limited data set
Subscribe for full access, or try a Trial

Trials by US State

Trials by US State for ROZEREM
Location Trials
California 13
Ohio 11
Florida 10
New York 9
Texas 8
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Progress for ROZEREM

Clinical Trial Phase

Clinical Trial Phase for ROZEREM
Clinical Trial Phase Trials
PHASE1 1
Phase 4 21
Phase 3 12
[disabled in preview] 11
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Status

Clinical Trial Status for ROZEREM
Clinical Trial Phase Trials
Completed 30
Terminated 9
Withdrawn 4
[disabled in preview] 4
This preview shows a limited data set
Subscribe for full access, or try a Trial

Clinical Trial Sponsors for ROZEREM

Sponsor Name

Sponsor Name for ROZEREM
Sponsor Trials
Takeda 29
Takeda Pharmaceuticals North America, Inc. 4
Brigham and Women's Hospital 2
[disabled in preview] 6
This preview shows a limited data set
Subscribe for full access, or try a Trial

Sponsor Type

Sponsor Type for ROZEREM
Sponsor Trials
Industry 34
Other 29
U.S. Fed 4
[disabled in preview] 3
This preview shows a limited data set
Subscribe for full access, or try a Trial
Last updated: July 28, 2026

Rozerem (ramelteon) clinical trials update, market analysis and near-term projections depend on three facts: (1) Rozerem is already launched and has limited pipeline-driven upside because its core indication (sleep onset insomnia) is mature and off-patent in practice; (2) the relevant competitive set is dominated by generic hypnotics and branded sleep agents with different MoAs; (3) incremental clinical-trial readouts for ramelteon are sparse relative to the broader insomnia category.

Rozerem (ramelteon) clinical trials update: what do the latest studies show?

Short answer: Public, decision-grade updates for Rozerem specifically are limited. Most insomnia research activity is now focused on newer hypnotics, non-benzodiazepine sedatives, orexin antagonists, melatonin receptor agonists in earlier phases for expanded phenotypes, and nonpharmacologic approaches. Ramelteon’s later-stage development momentum has not matched the category’s recent late-phase throughput.

What clinical trial phases has ramelteon historically completed?

Key ramelteon development milestones are largely earlier and centered on:

  • Sleep onset insomnia (initial trials established efficacy vs placebo on objective and subjective endpoints).
  • Dose-ranging and long-term safety characterization.
  • Special populations (elderly, patients with comorbidities) and differentiated endpoints such as latency to persistent sleep.

Because the question is “update,” the actionable frame for current business planning is whether there are ongoing or recently completed Phase 3 or Phase 2b/3-equivalent studies that could support new claims, new indications, or label expansion.

Are there recent Phase 2/3 trials for Rozerem that could drive label expansion?

No recent, widely reported Phase 2/3 readouts for Rozerem that materially change the label or strengthen exclusivity are evident in major public trial registries and oncology-style data feeds typically used for investment-grade monitoring. Ramelteon remains anchored to the established insomnia-onset positioning.

What endpoints and subpopulations have mattered most for ramelteon?

Ramelteon trial evidence historically centered on:

  • Objective sleep onset latency (polysomnography).
  • Subjective sleep latency and patient-reported sleep quality.
  • Sleep continuity outcomes (secondary endpoints).
  • Safety and next-day impairment risk profile, a key differentiator in insomnia prescribing.

Rozerem market analysis 2026: what is the current demand outlook for ramelteon?

Short answer: Demand is constrained by generic penetration across hypnotics and by the availability of multiple insomnia standards of care. Rozerem’s branded positioning persists, but the category’s pricing power has weakened, and payer preference often shifts to lower-cost alternatives depending on line of therapy and formulary strategy.

How big is the insomnia market Rozerem competes in?

Rozerem competes in the prescription insomnia segment (sleep-onset insomnia) against:

  • Benzodiazepine receptor agonists (generics dominate).
  • Orexin antagonists (branded, higher price, strong adoption in some formularies).
  • Other melatonin receptor agonist strategies (branded or generic, depending on product).
  • Adjuncts and behavioral sleep interventions, increasingly promoted in payer policy.

The business implication is that Rozerem’s addressable market is the subset of patients and prescribers seeking a melatonin-receptor agonist profile, or for whom adverse-effect tolerability and next-day impairment considerations drive selection.

What drives Rozerem prescribing today?

Core drivers:

  • Prescriber familiarity with a “melatonin receptor agonist” framing.
  • Safety perception relative to sedative-hypnotics with higher next-day impairment risk.
  • Patient preference and payer authorization patterns.
  • Availability of generics in competing classes that erode branded differentiation.

Competitive landscape: who takes formulary share vs Rozerem?

In practical formulary terms, the main competitive pressure comes from:

  • Generic hypnotics as default tier placement.
  • Orexin antagonists where plans prioritize efficacy and reduced residual sedation.
  • Other brand-led insomnia launches in the past decade that reshaped first-line behavior for some payers.

Ramelteon’s differentiation is mechanism-based and side-effect-profile based. Its share outcome is sensitive to formulary tiering and copay design.

When does Rozerem lose exclusivity and what does that mean for price and share?

Short answer: Ramelteon has been marketed for years, and the current economic reality is that exclusivity has already been eroded by generic availability and competitive entry in the insomnia space. For near-term planning, the key issue is not “primary exclusivity expiry” but “how much branded Rozerem demand survives” under formulary pressure and price competition.

How does branded vs generic access affect Rozerem sales?

  • Branded sales typically fall after generic availability because plans rationalize to lowest-cost effective therapy.
  • Even where a branded option remains preferred, utilization often concentrates at higher tiers with restricted quantities or step therapy for newly treated patients.

What are the main risk levers for Rozerem revenue in the next 2 to 5 years?

  • Tier placement and formulary carve-outs.
  • New generic entrants (if any) or expanded coverage.
  • Payer use of step edits requiring failure of lower-cost hypnotics or specific payer-supported agents.
  • Segment-level shifts toward nonpharmacologic or broader insomnia management programs that reduce total hypnotic use.

Rozerem generic entry risk: what patent and regulatory dynamics matter now?

Short answer: Without a current, live patent and Orange Book mapping for ramelteon that enumerates listed patents by formulation and method-of-use, the only decision-grade conclusion is category-level: branded insomnia products face structural pressure from generic substitution once patent-protected formulary exclusivity has thinned.

Where generic risk typically shows up for insomnia products

  • Shorter-lived formulation or polymorph IP can still create “last mile” barriers, but many insomnia generics clear quickly once core composition and key formulation coverage ends.
  • Method-of-use coverage can be harder to design around but often narrows after label stabilization and generic design-around.

For business planning, generic threat is usually already realized for Rozerem given its long launch history, and remaining value is more a function of payer behavior than open litigation leverage.

Rozerem vs competitors: how does ramelteon compare on mechanism, differentiation and likely uptake?

Short answer: Ramelteon is a melatonin receptor agonist. Competitive uptake depends on patient phenotype alignment and prescriber belief in reduced next-day impairment risk. Orexin antagonists and sedative-hypnotic classes can dominate based on perceived efficacy and plan design.

Mechanism-of-action comparison

  • Ramelteon: melatonin receptor agonist with sleep-onset focus.
  • Orexin antagonists: wakefulness pathway disruption; often positioned for sleep maintenance and efficacy narratives.
  • Other hypnotics: varied receptor pharmacology with different residual effects and tolerability profiles.

What that means for market share trajectory

Rozerem’s market share tends to be:

  • Stable only when payer plans leave it accessible and copays are not punitive.
  • Eroding when plans switch defaults to generics or newer, more preferred mechanisms.

What formulation and delivery-system changes could extend Rozerem’s lifecycle?

Short answer: The most typical lifecycle-extension moves for oral insomnia products are:

  • New dosing strengths, formulation tweaks, or extended indications.
  • Combination strategies (rare in insomnia due to payer resistance).
  • Pharmacokinetic optimization (typically not transformative for established market access).

For ramelteon specifically, absent widely publicized, material new clinical dossiers, formulation extension is not a major lever for near-term upside.

Regulatory status: what is Rozerem’s FDA position for insomnia treatment today?

Short answer: Rozerem is an FDA-approved prescription therapy for insomnia related to sleep onset. In practice, regulatory status is stable and the market outcome is driven by payer and competitive product selection rather than ongoing regulatory catalysts.

Commercial projection for Rozerem (2026-2029): what is a reasonable sales trajectory?

Short answer: A realistic near-term projection for Rozerem is continued decline or flat-to-down performance with category volatility driven more by payer policy and competing generics than by incremental ramelteon clinical updates.

Projection logic for branded, mature insomnia products

Projected outcomes in insomnia typically follow:

  • Declining branded utilization as generics expand across competing classes.
  • Intermittent rebounds when branded options gain short-term formulary placements, but sustained growth is uncommon without a label expansion or major new clinical advantage.
  • Pricing pressure due to payer negotiation and wholesale discount dynamics in a mature category.

Three scenario view (directional, decision-useful)

  • Base case: continued modest decline as formularies reinforce lower-cost options.
  • Downside: faster erosion if plans place ramelteon on higher tiers or enforce step edits to generics first.
  • Upside: stabilization if specific payers maintain ramelteon access and if prescribers keep it as a tolerated alternative for patients who fail other hypnotics.

Key Takeaways

  • Rozerem’s clinical-trials “update” yield is low relative to newer insomnia mechanisms; no decision-grade label-changing Phase 2/3 momentum is apparent.
  • Market trajectory is driven primarily by generic pressure and payer formulary design, not by new ramelteon competitive differentiation.
  • Near-term projections for 2026-2029 are directionally flat-to-down, with upside requiring payer access stability or a meaningful label expansion supported by new clinical evidence.
  • Commercial risk is structural: insomnia prescribing is highly price- and formulary-sensitive.

FAQs

  1. Is ramelteon still a first-line option for sleep-onset insomnia in major formularies?
  2. Do orexin antagonists outperform Rozerem in real-world sleep outcomes and persistence?
  3. What are the most common reasons payers restrict branded melatonin-receptor agonists like Rozerem?
  4. How does next-day impairment data influence prescriber selection between Rozerem and sedative-hypnotics?
  5. Are there any meaningful ramelteon label expansions or ongoing trials that could change market outlook?

References

  1. ClinicalTrials.gov. Ramelteon (search results and trial record listings).
  2. U.S. Food and Drug Administration (FDA). Drug approval and labeling information for Rozerem (ramelteon).
  3. Orange Book (FDA). Rozerem (ramelteon) patent and exclusivity listings.

More… ↓

⤷  Start Trial

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.