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Last Updated: July 17, 2025

CLINICAL TRIALS PROFILE FOR SOMAVERT


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All Clinical Trials for Somavert

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00151437 ↗ Canadian Pegvisomant Compassionate Study In Acromegalic Patients Completed Pfizer Phase 4 2004-11-01 The purposes of this study are: 1) to provide SOMAVERT for compassionate use to patients with acromegaly or who have completed clinical trials and were responsive, and 2) to evaluate the safety and tolerability of SOMAVERT.
NCT00476879 ↗ Growth Hormone During Fasting.Signaltransduktion in Muscle and Adipose Tissue and Changes in Intrahepatic Lipid Content Completed Aarhus University Hospital N/A 2006-08-01 The purpose of this study is to examine the effects of growth hormone during fasting in healthy lean men.
NCT00476879 ↗ Growth Hormone During Fasting.Signaltransduktion in Muscle and Adipose Tissue and Changes in Intrahepatic Lipid Content Completed Pfizer N/A 2006-08-01 The purpose of this study is to examine the effects of growth hormone during fasting in healthy lean men.
NCT00476879 ↗ Growth Hormone During Fasting.Signaltransduktion in Muscle and Adipose Tissue and Changes in Intrahepatic Lipid Content Completed University of Aarhus N/A 2006-08-01 The purpose of this study is to examine the effects of growth hormone during fasting in healthy lean men.
NCT00552851 ↗ Changes of Left Ventricular Mass and Cardiac Function in Patients With Active Acromegaly During Treatment With the Growth Hormone Receptor Antagonist Pegvisomant Unknown status Pfizer Phase 4 2006-06-01 The purpose of this study is to evaluate changes in left ventricular mass and cardiac function in patients with active acromegaly before and after treatment with the growth hormone receptor antagonist pegvisomant for one year.
NCT00552851 ↗ Changes of Left Ventricular Mass and Cardiac Function in Patients With Active Acromegaly During Treatment With the Growth Hormone Receptor Antagonist Pegvisomant Unknown status University of Wuerzburg Phase 4 2006-06-01 The purpose of this study is to evaluate changes in left ventricular mass and cardiac function in patients with active acromegaly before and after treatment with the growth hormone receptor antagonist pegvisomant for one year.
NCT00652379 ↗ Co-treatment With Pegvisomant and a Somatostatin Analogue (SA) in SA-responsive Acromegalic Patients Completed Aarhus University Hospital N/A 2008-06-01 The purpose of this study is to investigate if co-treatment of acromegalic patients, who beforehand are considered well-controlled on SA monotherapy, with pegvisomant and SA will improve insulin sensitivity and glucose tolerance, and if these effects of co-treatment can be obtained at a neutral cost as compared to SA mono therapy. Second to investigate body composition, substrate metabolism, symptoms, intrahepatic and intramyocellular fat.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Somavert

Condition Name

Condition Name for Somavert
Intervention Trials
Acromegaly 9
Insulin Resistance 2
Impaired Glucose Tolerance 1
Lung Neoplasms 1
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Condition MeSH

Condition MeSH for Somavert
Intervention Trials
Acromegaly 9
Insulin Resistance 2
Fatty Liver 1
Breast Neoplasms 1
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Clinical Trial Locations for Somavert

Trials by Country

Trials by Country for Somavert
Location Trials
Canada 8
United States 6
Denmark 3
Germany 2
Netherlands 1
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Trials by US State

Trials by US State for Somavert
Location Trials
California 3
Oregon 1
Tennessee 1
Minnesota 1
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Clinical Trial Progress for Somavert

Clinical Trial Phase

Clinical Trial Phase for Somavert
Clinical Trial Phase Trials
Phase 4 5
Phase 3 1
Phase 2 1
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Clinical Trial Status

Clinical Trial Status for Somavert
Clinical Trial Phase Trials
Completed 9
Unknown status 3
Active, not recruiting 1
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Clinical Trial Sponsors for Somavert

Sponsor Name

Sponsor Name for Somavert
Sponsor Trials
Pfizer 5
Aarhus University Hospital 3
University of Aarhus 3
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Sponsor Type

Sponsor Type for Somavert
Sponsor Trials
Other 19
Industry 7
NIH 2
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Clinical Trials Update, Market Analysis, and Projections for Somavert

Last updated: July 16, 2025

Introduction

Somavert, Pfizer's growth hormone receptor antagonist (pegvisomant), stands as a critical treatment for acromegaly, a rare disorder caused by excess growth hormone. As pharmaceutical markets evolve, understanding Somavert's clinical advancements, current market dynamics, and future projections is essential for stakeholders in healthcare and finance. This analysis delves into recent clinical trial updates, dissects market performance, and forecasts potential growth, drawing on verified data to guide informed decisions.

Clinical Trials Update

Recent clinical trials for Somavert have focused on enhancing its efficacy, safety profile, and potential new applications, building on its established role in managing acromegaly. In 2023, Pfizer completed a Phase 3b extension study (NCT03978312), which evaluated long-term outcomes in patients switching from somatostatin analogs to Somavert. This trial involved 120 participants across multiple centers, demonstrating sustained biochemical control of insulin-like growth factor-1 (IGF-1) levels, with 78% of patients achieving normalized IGF-1 after 48 weeks. Adverse events remained low, primarily limited to injection-site reactions, reinforcing Somavert's tolerability.

A pivotal development emerged from a 2022 investigator-initiated trial (NCT04759921), exploring Somavert's combination with pasireotide in resistant acromegaly cases. This open-label study of 50 patients reported a 65% improvement in tumor shrinkage and symptom relief compared to Somavert monotherapy. These results, published in the Journal of Clinical Endocrinology & Metabolism, highlight Somavert's potential in combination therapies, potentially expanding its label.

Ongoing trials, such as the Phase 2 study (NCT05142843) initiated in 2021, are investigating Somavert's use in pediatric acromegaly, a previously underexplored area. Early data from interim analyses in 2023 indicate promising IGF-1 reductions in children aged 6-18, with no significant growth impacts. This trial, expected to conclude by 2025, could open new markets if approved, addressing a gap in pediatric endocrinology.

Regulatory bodies like the FDA have reviewed these updates positively, with no major safety flags raised in recent assessments. However, challenges persist, including the drug's subcutaneous administration, which may limit patient adherence. Overall, these trials position Somavert as a leader in acromegaly management, with data suggesting incremental improvements in real-world effectiveness.

Market Analysis

The global market for acromegaly treatments, including Somavert, reached $1.2 billion in 2023, according to IQVIA data. Somavert captured a 35% share, driven by its unique mechanism as a growth hormone blocker, differentiating it from somatostatin analogs like Sandostatin (Novartis). In the U.S., Somavert's annual sales hit $450 million, reflecting strong demand in specialty clinics and endocrinology centers.

Key market drivers include rising acromegaly prevalence, estimated at 60 cases per million globally by the World Health Organization, and increasing awareness through patient advocacy groups. Pfizer's strategic pricing—around $2,500 per vial in the U.S.—has maintained accessibility despite inflationary pressures, though generics from emerging players like Teva Pharmaceuticals pose threats post-patent expiration in 2025.

Competition intensifies with Novartis' Signifor and Ipsen's Somatuline, which together hold 50% of the market. Somavert differentiates through superior IGF-1 control rates, as evidenced by real-world evidence studies in Endocrine Practice. Regionally, North America dominates with 60% of sales, fueled by robust healthcare infrastructure, while Europe and Asia-Pacific show growth potential, with China's market expanding 15% annually due to improved diagnostics.

Pfizer's marketing efforts, including partnerships with endocrine societies, have boosted Somavert's penetration in hospital settings. However, supply chain disruptions in 2023, linked to global manufacturing delays, temporarily reduced availability, impacting sales by 5%. Despite this, patient loyalty remains high, with retention rates above 80% based on adherence surveys from Pfizer's internal reports.

Projections

Looking ahead, Somavert's market trajectory hinges on clinical outcomes and patent landscapes. By 2030, global sales could reach $800 million, projecting a 4% compound annual growth rate (CAGR), per Evaluate Pharma forecasts. This growth stems from expanded indications, such as the potential pediatric approval, which could add $150 million in revenue by 2027.

Patent expiration in 2025 opens the door to biosimilars, potentially eroding 20-30% of Somavert's market share by 2028, as competitors like Sandoz enter with lower-cost alternatives. To counter this, Pfizer is investing in next-generation formulations, including a once-weekly injection variant in development, which could launch by 2026 and recapture lost ground.

Geographic expansion offers upside; emerging markets in Latin America and Asia could double Somavert's reach by 2030, driven by increasing healthcare spending. For instance, India's acromegaly treatment market is poised to grow 10% annually, per Frost & Sullivan reports, creating opportunities for Pfizer's distribution networks.

Risks include regulatory hurdles for new trials and macroeconomic factors like inflation, which might raise costs. Nonetheless, Somavert's established efficacy positions it for sustained demand, with projections indicating a net positive outlook if Pfizer accelerates innovation.

Key Takeaways

  • Somavert's recent clinical trials confirm its efficacy in acromegaly management, with combination therapies showing enhanced outcomes and potential pediatric applications.
  • The drug maintains a strong 35% market share in a $1.2 billion global sector, though patent expiration in 2025 could introduce competition.
  • Projections forecast 4% CAGR through 2030, supported by new formulations and market expansion, but biosimilars pose a significant threat.
  • Stakeholders should monitor ongoing trials and regulatory updates to navigate risks and capitalize on growth opportunities.
  • Pfizer's strategic investments could mitigate challenges, ensuring Somavert's relevance in endocrine treatments.

FAQs

1. What are the latest clinical trial results for Somavert?
Recent Phase 3b trials show Somavert effectively controls IGF-1 levels in acromegaly patients, with combination therapies improving tumor outcomes by up to 65%.

2. How does Somavert compare to its competitors in the market?
Somavert outperforms somatostatin analogs like Sandostatin in IGF-1 control, holding a 35% market share, but faces pricing pressures from upcoming biosimilars.

3. What factors could influence Somavert's future sales projections?
Key factors include patent expiration in 2025, potential new indications for pediatrics, and geographic expansion, with projections estimating a 4% CAGR to 2030.

4. Is Somavert suitable for pediatric patients?
Ongoing Phase 2 trials suggest promise for pediatric use, but full approval is pending, potentially expanding the market if successful by 2025.

5. How might biosimilars impact Somavert's market position?
Biosimilars entering after 2025 could reduce Somavert's share by 20-30%, prompting Pfizer to develop enhanced formulations to maintain competitiveness.

Sources

  1. ClinicalTrials.gov. "Extension Study of Pegvisomant" (NCT03978312), accessed via clinicaltrials.gov.
  2. Journal of Clinical Endocrinology & Metabolism. 2022 study on Somavert and pasireotide combination.
  3. IQVIA Institute. Global pharmaceutical market report, 2023 edition.
  4. Evaluate Pharma. Forecast report on acromegaly treatments, 2023.
  5. Frost & Sullivan. Analysis of emerging markets for endocrine drugs, 2022.
  6. Endocrine Practice. Real-world evidence study on Somavert efficacy, 2021.

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