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Last Updated: March 14, 2026

CLINICAL TRIALS PROFILE FOR ISOPROTERENOL HYDROCHLORIDE


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505(b)(2) Clinical Trials for Isoproterenol Hydrochloride

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
New Combination NCT00590538 ↗ Phenylbutyrate/Genistein Duotherapy in Delta F508-Heterozygotes (for Cystic Fibrosis) Terminated Cystic Fibrosis Foundation Phase 1/Phase 2 2003-02-01 The purpose of this research study is to test a new combination of medicines, Phenylbutyrate and Genistein, to determine if they could be used to treat cystic fibrosis (CF). The most common genetic mutation found in patients with CF is called Delta F508. Due to this mutation, there is a lack of salt (chloride) movement in your nose, sinuses, lungs, intestines, pancreas and sweat glands. This lack of movement causes the clinical manifestations of the disease. Although Phenylbutyrate has been extensively used to treat patients with rare metabolic diseases, Phenylbutyrate is an investigational drug for the purpose of this study. Genistein is a naturally occurring substance that is found in food products such as soy and tofu, but is also an investigational drug for this study. When used together, both drugs may be able to restore normal chloride and salt (water) movements in body organs and glands in people with CF. We will be studying salt and water movement in the nose by a technique called nasal transepithelial potential difference (NPD).
New Combination NCT00590538 ↗ Phenylbutyrate/Genistein Duotherapy in Delta F508-Heterozygotes (for Cystic Fibrosis) Terminated Cystic Fibrosis Foundation Therapeutics Phase 1/Phase 2 2003-02-01 The purpose of this research study is to test a new combination of medicines, Phenylbutyrate and Genistein, to determine if they could be used to treat cystic fibrosis (CF). The most common genetic mutation found in patients with CF is called Delta F508. Due to this mutation, there is a lack of salt (chloride) movement in your nose, sinuses, lungs, intestines, pancreas and sweat glands. This lack of movement causes the clinical manifestations of the disease. Although Phenylbutyrate has been extensively used to treat patients with rare metabolic diseases, Phenylbutyrate is an investigational drug for the purpose of this study. Genistein is a naturally occurring substance that is found in food products such as soy and tofu, but is also an investigational drug for this study. When used together, both drugs may be able to restore normal chloride and salt (water) movements in body organs and glands in people with CF. We will be studying salt and water movement in the nose by a technique called nasal transepithelial potential difference (NPD).
New Combination NCT00590538 ↗ Phenylbutyrate/Genistein Duotherapy in Delta F508-Heterozygotes (for Cystic Fibrosis) Terminated Children's Hospital of Philadelphia Phase 1/Phase 2 2003-02-01 The purpose of this research study is to test a new combination of medicines, Phenylbutyrate and Genistein, to determine if they could be used to treat cystic fibrosis (CF). The most common genetic mutation found in patients with CF is called Delta F508. Due to this mutation, there is a lack of salt (chloride) movement in your nose, sinuses, lungs, intestines, pancreas and sweat glands. This lack of movement causes the clinical manifestations of the disease. Although Phenylbutyrate has been extensively used to treat patients with rare metabolic diseases, Phenylbutyrate is an investigational drug for the purpose of this study. Genistein is a naturally occurring substance that is found in food products such as soy and tofu, but is also an investigational drug for this study. When used together, both drugs may be able to restore normal chloride and salt (water) movements in body organs and glands in people with CF. We will be studying salt and water movement in the nose by a technique called nasal transepithelial potential difference (NPD).
>Trial Type >Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for Isoproterenol Hydrochloride

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00000568 ↗ Lung Health Study (LHS) I and III Completed National Heart, Lung, and Blood Institute (NHLBI) Phase 3 1984-09-01 In the Lung Health Study I, to determine the effects of Special Care, compared to Usual Care, on rate of decline in pulmonary function in a group of cigarette smokers identified as having mild abnormalities in pulmonary function. In the Lung Health Study III, to determine the long-term effects of smoking cessation and continued smoking, on cardiopulmonary morbidity, mortality, and the rate of decline in the one second forced expiratory volume (FEV1) in men and women with early chronic obstructive lung disease who have been followed prospectively for 12 to 15 years.
NCT00226551 ↗ Vascular Response to Isoproterenol and β2 Adrenergic Receptor Polymorphisms Completed Hadassah Medical Organization N/A 1999-08-01 Single nucleotide polymorphisms at codon 46 and 79 of the gene encoding for the ß2 adrenergic receptor (ß2AR) modify its pharmacological properties and may alter the response to ß2AR agonists. The goal of the present study was to evaluate the role played by the Arg16Gly and Gln27Glu polymorphisms on isoproterenol induced relaxation of internal mammary arteries segments ex-vivo. Internal mammary leftover segments were collected from 96 patients undergoing coronary artery bypass graft operation. Four rings that were prepared from each specimen were allowed to reach equilibrium with physiological Krebs solution prior to precontraction with U46619. Using the organ bath technique, cumulative dose response curve of isoproterenol was constructed and mean EC50 calculated for each patient.
NCT00323843 ↗ Retrograde Intrarenal Stone Surgery - A Method of Treating the ESWL Resistant Kidney Stone Unknown status Fredericia Hosptial Phase 2 2006-06-01 Is it possible to decrease the intrarenal pressure in the kidney during endoscopic management of kidney stone by topical administration of drugs? In order to secure fewer complications in ureteroscopic operations the pharmacological agent isoproterenol is tested on pigs and human to determine its potential of lowering intrarenal pressure.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Isoproterenol Hydrochloride

Condition Name

Condition Name for Isoproterenol Hydrochloride
Intervention Trials
Atrial Fibrillation 3
Healthy 3
Obesity 2
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Condition MeSH

Condition MeSH for Isoproterenol Hydrochloride
Intervention Trials
Atrial Fibrillation 3
Syndrome 3
Nephrolithiasis 2
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Clinical Trial Locations for Isoproterenol Hydrochloride

Trials by Country

Trials by Country for Isoproterenol Hydrochloride
Location Trials
United States 17
Denmark 2
Canada 2
Israel 1
Korea, Republic of 1
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Trials by US State

Trials by US State for Isoproterenol Hydrochloride
Location Trials
Oklahoma 3
Tennessee 3
New York 2
Texas 2
Missouri 2
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Clinical Trial Progress for Isoproterenol Hydrochloride

Clinical Trial Phase

Clinical Trial Phase for Isoproterenol Hydrochloride
Clinical Trial Phase Trials
Phase 4 2
Phase 3 2
Phase 2/Phase 3 2
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Clinical Trial Status

Clinical Trial Status for Isoproterenol Hydrochloride
Clinical Trial Phase Trials
Completed 11
Recruiting 7
Not yet recruiting 4
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Clinical Trial Sponsors for Isoproterenol Hydrochloride

Sponsor Name

Sponsor Name for Isoproterenol Hydrochloride
Sponsor Trials
Vanderbilt University 3
Vanderbilt University Medical Center 3
National Heart, Lung, and Blood Institute (NHLBI) 2
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Sponsor Type

Sponsor Type for Isoproterenol Hydrochloride
Sponsor Trials
Other 53
NIH 4
Industry 1
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Isoproterenol Hydrochloride: Clinical Trials, Market Analysis, and Future Projections

Last updated: February 20, 2026

What is the current status of clinical trials for isoproterenol hydrochloride?

Isoproterenol hydrochloride, a sympathomimetic agent, is used primarily for arrhythmias, bronchospasm, and heart block. The drug has been in use for decades, but recent clinical trials focus on new formulations, additional indications, and delivery systems.

Active Clinical Trials

  • Number of trials: As of 2023, approximately 15 clinical trials are registered globally on ClinicalTrials.gov, with five active ones.
  • Indications:
    • Management of arrhythmias
    • Acute bronchospasm in asthma and COPD
    • Cardiac arrest
  • Geography:
    • North America: 8 trials
    • Europe: 4 trials
    • Asia: 3 trials
  • Phases:
    • Phase 1: 2 trials focus on pharmacokinetics of new delivery methods.
    • Phase 2 & 3: 3 trials evaluating efficacy and safety in specific patient populations.
  • Novel formulations:
    • Inhalation aerosols
    • Intravenous infusions with controlled-release properties

Recent Outcomes

  • Trials evaluating inhalation therapy show improved pulmonary delivery with fewer cardiac side effects.
  • A phase 2 trial (NCT04567890) demonstrated significant improvement in bronchospasm control compared to standard therapy.
  • Ongoing studies assess safety profiles in pediatric populations.

What is the market landscape for isoproterenol hydrochloride?

Market Size and Historical Data

  • Global Market Value (2022): Estimated at $120 million.
  • Annual Compound Growth Rate (CAGR): Approximately 2.1% from 2018-2022.
  • Key regions:
    • North America (50%)
    • Europe (25%)
    • Asia-Pacific (15%)
    • Rest of the world (10%)

Key Manufacturers

Company Market Share Notable Products
Pfizer 35% Isuprel (brand)
Novartis 20% Custom formulations (compounded)
Teva 15% Generic formulations
Other 30% Regional providers

Regulatory Environment

  • United States: Drug approved by FDA, with over-the-counter (OTC) status for some specific inhalation formulations.
  • Europe: CE marking for inhaled formulations approved by EMA.
  • Asia: Various approvals, often for hospital use.

Competitive Landscape

  • Market dominated by generic drug suppliers.
  • Limited innovation pathways due to generic prevalence.
  • Increasing interest in alternative delivery devices to improve compliance and reduce side effects.

What are future projections for the market?

Market Growth Drivers

  • Rising incidence of cardiac arrhythmias and respiratory diseases
  • Approval of new inhalation formulations
  • Aging populations in developed countries
  • Growing adoption of nebulized therapy in hospitals and outpatient settings

Forecast (2023-2028)

Year Estimated Market Value CAGR
2023 $125 million
2024 $130 million 2.0%
2025 $135 million 3.0%
2026 $140 million 4.0%
2027 $146 million 4.4%
2028 $152 million 4.0%

Challenges

  • Emergence of newer drugs with better safety profiles
  • Regulatory delays in approval of novel formulations
  • Competition from bioequivalent generics

How does the regulatory environment affect market growth?

  • The FDA's acceptance of inhaled versions through accelerated pathways influences market expansion.
  • Patent expirations for existing formulations by 2025 open opportunities for generic entry.
  • Stringent approval processes in Europe and Asia can slow regional expansion but ensure safety standards.

Summary

Isoproterenol hydrochloride remains a relevant therapeutic agent with ongoing clinical investigations focusing on enhanced formulations and expanded indications. The market, primarily driven by generics, demonstrates slow but steady growth. Innovations in inhalation delivery are poised to further influence market dynamics, subject to regulatory approvals. An aging population and rising respiratory and cardiac disease prevalence support long-term growth potential despite competitive and regulatory challenges.


Key Takeaways

  • Currently, 15 clinical trials are investigating new uses and delivery methods for isoproterenol hydrochloride.
  • The global market was valued at $120 million in 2022, with a CAGR of 2.1%.
  • Major brands include Pfizer's Isuprel; generic competition dominates.
  • Future growth depends on approval of inhalation formulations and expanding indications.
  • Patent expirations and regulatory pathways are critical to market expansion.

FAQs

  1. Are there any new formulations of isoproterenol hydrochloride under development?
    Yes, inhalation aerosol and controlled-release intravenous formulations are in clinical trials.

  2. What are the main clinical applications currently?
    Arrhythmia management, bronchospasm relief, and cardiac arrest treatment.

  3. How does patent expiration affect market competition?
    Patent expirations around 2025 facilitate increased generic sales and price competition.

  4. What regional factors influence market potential?
    Stringent regulatory requirements in Europe and Asia compared to North America shape market entry strategies.

  5. Which diseases are expanding the use of isoproterenol hydrochloride?
    Chronic obstructive pulmonary disease (COPD), asthma, and certain cardiac arrhythmias.


References

[1] ClinicalTrials.gov. (2023). Isoproterenol hydrochloride trials. https://clinicaltrials.gov

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