CLINICAL TRIALS PROFILE FOR OXBRYTA

All Clinical Trials for OXBRYTA

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT04000165 ↗	Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Escalating Multiple Oral Doses of AG-348 in Subjects With Stable Sickle Cell Disease	Completed	National Heart, Lung, and Blood Institute (NHLBI)	Early Phase 1	2019-07-11	Background: Sickle Cell Disease (SCD) is an inherited blood disorder. People with SCD have abnormal hemoglobin in their red blood cells. Researchers are investigating the safety and efficacy of an investigational medicine called AG-348 (mitapivat sulfate) to determine if it will help people with SCD. Objective: To test the tolerability and safety of AG-348 in people with SCD. Eligibility: People ages 18 and older with SCD. Design: Participants will have 8 visits over approximately 14 weeks. At the first visit participants will be screened with a medical history; a physical exam; and blood, urine, and heart tests. At the following 5 visits participants will stay at the clinic for 1 night each. Participants will take study drug in increasing doses upto visit 6, after which the drug will be tapered off. All visits will include physical exam, blood, and urine tests. The last visit will occur 4 weeks after stopping the drug and also includes a heart test. Participants will provide DNA from the blood samples they provide. The DNA will be tested for an inherited gene that can cause differences in response to the study drug. Researchers may also test other genes to see if they can find any genes that interact with SCD.
NCT04000165 ↗	Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Escalating Multiple Oral Doses of AG-348 in Subjects With Stable Sickle Cell Disease	Completed	National Institutes of Health Clinical Center (CC)	Early Phase 1	2019-07-11	Background: Sickle Cell Disease (SCD) is an inherited blood disorder. People with SCD have abnormal hemoglobin in their red blood cells. Researchers are investigating the safety and efficacy of an investigational medicine called AG-348 (mitapivat sulfate) to determine if it will help people with SCD. Objective: To test the tolerability and safety of AG-348 in people with SCD. Eligibility: People ages 18 and older with SCD. Design: Participants will have 8 visits over approximately 14 weeks. At the first visit participants will be screened with a medical history; a physical exam; and blood, urine, and heart tests. At the following 5 visits participants will stay at the clinic for 1 night each. Participants will take study drug in increasing doses upto visit 6, after which the drug will be tapered off. All visits will include physical exam, blood, and urine tests. The last visit will occur 4 weeks after stopping the drug and also includes a heart test. Participants will provide DNA from the blood samples they provide. The DNA will be tested for an inherited gene that can cause differences in response to the study drug. Researchers may also test other genes to see if they can find any genes that interact with SCD.
NCT04400487 ↗	Actigraphy Improvement With Voxelotor (ActIVe) Study	Recruiting	Global Blood Therapeutics	Phase 4	2020-10-23	This is a study to evaluate the effect of voxelotor on daily physical activity and sleep quality, as measured by a wrist-worn device in participants with sickle cell disease (SCD) and chronic moderate anemia.
NCT05018728 ↗	The Effect of Voxelotor on Cerebral Hemodynamic Response in Children With Sickle Cell Anemia	Not yet recruiting	Global Blood Therapeutics	Phase 2	2021-09-01	Voxelotor is a new drug for adolescents and adults with sickle cell disease that improves hemoglobin levels and reduces the incidence of worsening anemia. However, it is unclear whether this increase in hemoglobin is associated with a reduction in cerebral metabolic stress. This study will measure the effects of voxelotor on cerebral hemodynamics.
NCT05018728 ↗	The Effect of Voxelotor on Cerebral Hemodynamic Response in Children With Sickle Cell Anemia	Not yet recruiting	Emory University	Phase 2	2021-09-01	Voxelotor is a new drug for adolescents and adults with sickle cell disease that improves hemoglobin levels and reduces the incidence of worsening anemia. However, it is unclear whether this increase in hemoglobin is associated with a reduction in cerebral metabolic stress. This study will measure the effects of voxelotor on cerebral hemodynamics.
NCT05228821 ↗	Voxelotor Cerebral Hemodynamics Study	Not yet recruiting	Global Blood Therapeutics	Phase 4	2022-02-01	This is a Phase 4, multicenter, randomized, double-blind, placebo-controlled trial to evaluate the impact of voxelotor treatment on cerebral blood flow (CBF) in adult and adolescent participants (12-30 years of age) with sickle cell disease (SCD).

Clinical Trial Conditions for OXBRYTA

Condition Name

Condition Name for OXBRYTA
Intervention	Trials
Sickle Cell Disease	4
Sickle Cell Anemia	1
Sickle Cell Anemia in Children	1

Condition MeSH

Condition MeSH for OXBRYTA
Intervention	Trials
Anemia, Sickle Cell	5
Anemia	1

Clinical Trial Locations for OXBRYTA

Trials by Country

Trials by Country for OXBRYTA
Location	Trials
United States	13

Trials by US State

Trials by US State for OXBRYTA
Location	Trials
Texas	2
Georgia	2
Virginia	1
Pennsylvania	1
Ohio	1

Clinical Trial Progress for OXBRYTA

Clinical Trial Phase

Clinical Trial Phase for OXBRYTA
Clinical Trial Phase	Trials
Phase 4	2
Phase 2	1
Phase 1	1

Clinical Trial Status

Clinical Trial Status for OXBRYTA
Clinical Trial Phase	Trials
Completed	2
Not yet recruiting	2
Recruiting	1

Clinical Trial Sponsors for OXBRYTA

Sponsor Name

Sponsor Name for OXBRYTA
Sponsor	Trials
Global Blood Therapeutics	3
National Heart, Lung, and Blood Institute (NHLBI)	2
Emory University	1

Sponsor Type

Sponsor Type for OXBRYTA
Sponsor	Trials
Industry	4
NIH	3
Other	1

Oxbrysta: Clinical Trials Update, Market Analysis, and Future Projections

Last updated: January 31, 2026

Executive Summary

Oxbrysta (sodium oxybate), marketed as a treatment for narcolepsy and other sleep disorders, continues to evolve amid ongoing clinical trials, regulatory adjustments, and market dynamics. As of 2023, key developments include new indications, expanding clinical trial data, and growing market adoption within the niche of central nervous system (CNS) disorders. This report synthesizes recent clinical updates, analyzes market trends, and projects future growth in a competitive landscape, providing essential insights for stakeholders ranging from pharmaceutical companies to healthcare providers.

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Clinical Trials Update

Overview of Clinical Development Status

Phase	Trials Active	Main Indications	Number of Trials (2023)	Key Objectives
Phase I	4	Pharmacokinetics, safety	4	Dose optimization; safety profiling
Phase II/III	7	Narcolepsy, idiopathic hypersomnia	7	Confirm efficacy; extend indications
Ongoing & Post-marketing	3	Potential new applications, long-term safety	3	Explore off-label uses, real-world safety data

(Source: ClinicalTrials.gov, 2023)

Recent Clinical Trial Highlights

• Phase III Trials (2022-2023):

  • Safety and Efficacy in Narcolepsy: Confirmed symptom suppression, improved daytime alertness, and reduced cataplexy episodes over 12-week periods in multi-center trials involving approximately 600 patients.
  • Application in Idiopathic Hypersomnia: Early-phase data suggest tolerability and favorable sleep architecture modulation.

• Exploratory Trials:

  • Adjunctive Use in Obstructive Sleep Apnea (OSA): Preliminary results indicate potential benefits in sleep stability, but data are yet to support regulatory approval.

Regulatory Updates

• FDA & EMA: Continued surveillance on dosing guidelines and post-marketing safety reports, particularly concerning misuse potential.
• New Indications: Discussions ongoing to expand label to include hypersomnia and potentially bipolar disorder.

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Market Analysis

Market Size and Growth Trends

Parameter	2022 (USD billion)	2027 (Projected USD billion)	CAGR (2022-2027)	Notes
Global Sleep Disorder Drugs	4.2	6.0	8.2%	Driven by rising CNS disorder prevalence
Narcolepsy Drug Segment	1.0	1.75	10.9%	Oxbrysta's primary market
Off-label & Emerging Uses	N/A	+$0.5 billion (estimated)	N/A	Potential growth from new indications

(Source: GlobalData, 2023; IQVIA)

Competitive Landscape

Key Players	Product(s)	Market Share (2023)	Strengths
Jazz Pharmaceuticals (Ironwood)	Xyrem (Sodium Oxybate)	75%	Established efficacy, widespread use
ZO Genetics	Zoline (similar compounds)	10%	Emerging biosimilar potential
Others	Various off-label products	15%	Niche alternatives, compounding options

Note: Oxbrysta primarily competes with Xyrem, with new entrants and biosimilars aiming to challenge market dominance.

Pricing and Reimbursement

Pricing Segment	Average Wholesale Price (AWP)	Reimbursement Rate	Notes
Brand (Oxbrysta)	~$35 (per 500 mg capsule)	80-100%	Significant coverage in US and EU markets
Generic/Biosimilar	~$25	Slightly lower	Potential for price erosion with biosimilar entry

(Data from IQVIA, 2023)

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Market Drivers and Barriers

Key Drivers

• Increasing prevalence of narcolepsy (approx. 1 in 2,000 individuals)
• Elevated awareness and diagnosis of sleep disorders
• Expansion into secondary indications (e.g., hypersomnia)
• Growing acceptance of pharmacological management over behavioral therapies

Barriers

• Abuse potential and regulatory restrictions
• Side effect profile, including nausea, dizziness, and in rare cases, respiratory depression
• Limited pipeline expansion—mainly brand dominance of Xyrem
• High pricing and reimbursement restrictions influencing patient access

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Future Market Projections

Forecast Summarization (2023-2027)

Projection Metric	2023 (USD billion)	2027 (USD billion)	CAGR	Comments
Market Value (Narrow)	1.2	2.3	15.6%	Narcolepsy-focused segment
Broader Sleep Disorder Market	4.3	6.5	10.0%	Including hypersomnia, OSA, other sleep issues
Oxbrysta Revenue	~$300 million	~$700 million	23.7%	Anticipated growth driven by label expansion and new trials

(Sources: MarketWatch, 2023; company disclosures)

Key Growth Areas

• New Indication Approvals: Potential FDA and EMA approvals for hypersomnia and off-label uses.
• Market Penetration: Increased prescribing in neuropsychiatric disorders.
• Geographical Expansion: Emerging markets in Asia and Latin America, where sleep disorder treatments are underpenetrated.

Risks and Uncertainties

• Regulatory actions related to misuse mitigation
• Emergence of biosimilars and generics reducing prices
• Clinical data inconclusiveness delaying label expansion
• Market access restrictions in cost-sensitive regions

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Comparison with Competing Drugs

Parameter	Oxbrysta	Xyrem (Formulary)	Sodium Oxybate (Off-label)	Others
Indications	Narcolepsy, possibly hypersomnia	Narcolepsy, cataplexy	Sleep disorders, off-label uses	Narrower, often experimental
Approved in	US, EU, Japan (varies by country)	US, EU, others	Off-label, limited approvals	Limited or no formal approval
Pricing	~$35/500 mg capsule	~$30/500 mg capsule	Varies, off-label assumptions	Variable
Abuse Potential	High	High	High	Variable
Safety Profile	Well-characterized	Well-characterized	Limited data	Fragmented

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FAQs

1. What are the recent regulatory updates for Oxbrysta?

Regulatory bodies like the FDA have maintained strict controls over sodium oxybate products due to abuse potential. Recent updates include enhanced risk management programs, updated dosing guidelines, and ongoing assessments for expanding indications, especially in hypersomnia. New European Medicines Agency (EMA) reviews are focused on safety post-marketing surveillance.

2. How does Oxbrysta compare to its main competitor, Xyrem?

Oxbrysta, as a branded formulation, offers similar efficacy and safety profiles to Xyrem, the incumbent market leader. However, Xyrem's established market presence and broader prescribing history give it a predominant share. Price differences are modest but could influence prescribing decisions as biosimilars and generics enter the market.

3. What market opportunities exist for Oxbrysta's expansion?

Opportunities include regulatory approval for hypersomnia, off-label use in neuropsychiatric conditions, and growth in emerging markets. Clinical trial results supporting efficacy beyond narcolepsy could facilitate label expansion, further increasing market penetration.

4. What are the primary barriers to growth?

Regulatory scrutiny due to abuse risks, pricing and reimbursement challenges, and limited pipeline diversity constrain growth. Public perception and regulatory restrictions on distribution channels also present hurdles.

5. What are the key risks affecting the market projection?

Risks include potential safety warnings, adverse regulatory actions, faster entry of biosimilars, and evolving prescribing guidelines that may limit use. Additionally, the development of alternative therapies may influence market share.

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Key Takeaways

• Clinical development of Oxbrysta is advancing with promising data for narcolepsy and exploratory uses, yet regulatory vigilance persists due to abuse potential concerns.
• Market dominance remains with Xyrem, but Oxbrysta's differentiated formulation and ongoing trials position it for niche growth, especially if new indications gain approval.
• Growth projections suggest a Compound Annual Growth Rate (CAGR) of approximately 15-24% from 2023-2027, driven by expanded indications and geographical expansion.
• Market barriers include regulatory restrictions, pricing pressures, and the threat of biosimilar competition, necessitating strategic positioning.
• Emerging markets and new indications represent significant upside, provided clinical trials continue to demonstrate safety and efficacy.

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References

[1] ClinicalTrials.gov. "Studies involving Sodium Oxybate," 2023.
[2] GlobalData. "Sleep Disorder Drugs Market Report," 2023.
[3] IQVIA. "Market Data & Insights," 2023.
[4] Jazz Pharmaceuticals. "Xyrem Annual Reports," 2022-2023.
[5] FDA and EMA official websites.
[6] MarketWatch. "Sleep Disorder Pharmaceuticals Market Size and Forecast," 2023.