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Last Updated: March 26, 2026

CLINICAL TRIALS PROFILE FOR NORGESTIMATE AND ETHINYL ESTRADIOL


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All Clinical Trials for NORGESTIMATE AND ETHINYL ESTRADIOL

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00236769 ↗ A Study of Efficacy and Safety With the Transdermal Contraceptive System. Completed Johnson & Johnson Pharmaceutical Research & Development, L.L.C. Phase 3 1997-11-01 The purpose of the study is to evaluate the contraceptive efficacy, safety, cycle control, and compliance with the transdermal contraceptive system.
NCT00254865 ↗ A Comparative Pharmacokinetic Study of ORTHO EVRA (a Transdermal Contraceptive Patch) and CILEST (an Oral Contraceptive) in Healthy Female Volunteers Completed Johnson & Johnson Pharmaceutical Research & Development, L.L.C. Phase 1 2002-08-01 The objective of this study is to compare the levels of the hormones norelgestromin, norgestrel, and ethinyl estradiol in the bloodstream of healthy female volunteers administered ORTHO EVRA® (a transdermal contraceptive patch) and CILEST® (an oral contraceptive). The open-label treatment phase of the study consists of two 28-day cycles of one treatment, a washout period of 28 days, and crossover to two 28-day cycles of the other treatment.
NCT00301587 ↗ A Study to Evaluate Folate Levels in Women Taking Oral Contraceptives Withdrawn Johnson & Johnson Pharmaceutical Research & Development, L.L.C. Phase 3 1969-12-31 The purpose of this study is to compare red blood cell folate levels in women who are taking oral contraceptives with or without folic acid
NCT00320567 ↗ The Effect of Norgestimate/Ethinyl Estradiol on Bone Density in Pediatric Subjects With Anorexia Nervosa Completed McNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc. Phase 2 1969-12-31 The purpose of this study is to evaluate the effect of norgestimate/ethinyl estradiol on lumbar spine (L1-L4) and total hip bone mineral density (BMD) in pediatric subjects with anorexia nervosa.
NCT00331071 ↗ Postmarketing Study of ORTHO EVRA (Norelgestromin and Ethinyl Estradiol Contraceptive Patch) in Relation to Venous Thromboembolism (Blood Clots), Stroke and Heart Attacks Completed Boston Collaborative Drug Surveillance Program 2002-04-01 The purpose of the study is to assess the occurrence of venous thromboembolism (blood clots), stroke, and heart attack in current users of ORTHO EVRA compared to current users of norgestimate-containing oral contraceptives with 35 mcg ethinyl estradiol with special attention to duration of use. The study uses data from the PharMetrics Patient-Centric Database and MarketScan database, which are US medical claims databases.
NCT00331071 ↗ Postmarketing Study of ORTHO EVRA (Norelgestromin and Ethinyl Estradiol Contraceptive Patch) in Relation to Venous Thromboembolism (Blood Clots), Stroke and Heart Attacks Completed Johnson & Johnson Pharmaceutical Research & Development, L.L.C. 2002-04-01 The purpose of the study is to assess the occurrence of venous thromboembolism (blood clots), stroke, and heart attack in current users of ORTHO EVRA compared to current users of norgestimate-containing oral contraceptives with 35 mcg ethinyl estradiol with special attention to duration of use. The study uses data from the PharMetrics Patient-Centric Database and MarketScan database, which are US medical claims databases.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for NORGESTIMATE AND ETHINYL ESTRADIOL

Condition Name

Condition Name for NORGESTIMATE AND ETHINYL ESTRADIOL
Intervention Trials
Contraception 8
Female Contraception 5
Pharmacokinetics 5
Healthy 4
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Condition MeSH

Condition MeSH for NORGESTIMATE AND ETHINYL ESTRADIOL
Intervention Trials
HIV Infections 4
Hepatitis C 3
Acne Vulgaris 2
Venous Thromboembolism 2
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Clinical Trial Locations for NORGESTIMATE AND ETHINYL ESTRADIOL

Trials by Country

Trials by Country for NORGESTIMATE AND ETHINYL ESTRADIOL
Location Trials
United States 16
Thailand 1
Egypt 1
Canada 1
New Zealand 1
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Trials by US State

Trials by US State for NORGESTIMATE AND ETHINYL ESTRADIOL
Location Trials
Texas 4
Kansas 3
California 3
Washington 2
Wisconsin 1
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Clinical Trial Progress for NORGESTIMATE AND ETHINYL ESTRADIOL

Clinical Trial Phase

Clinical Trial Phase for NORGESTIMATE AND ETHINYL ESTRADIOL
Clinical Trial Phase Trials
PHASE1 1
Phase 4 3
Phase 3 2
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Clinical Trial Status

Clinical Trial Status for NORGESTIMATE AND ETHINYL ESTRADIOL
Clinical Trial Phase Trials
Completed 24
Unknown status 3
Withdrawn 1
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Clinical Trial Sponsors for NORGESTIMATE AND ETHINYL ESTRADIOL

Sponsor Name

Sponsor Name for NORGESTIMATE AND ETHINYL ESTRADIOL
Sponsor Trials
Johnson & Johnson Pharmaceutical Research & Development, L.L.C. 9
Bristol-Myers Squibb 5
McNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc. 2
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Sponsor Type

Sponsor Type for NORGESTIMATE AND ETHINYL ESTRADIOL
Sponsor Trials
Industry 32
Other 5
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Clinical Trials Update, Market Analysis, and Projection for Norgestimate and Ethinyl Estradiol

Last updated: January 27, 2026

Summary

Norgestimate combined with Ethinyl Estradiol (NNR/EE) is a widely prescribed oral contraceptive. Its efficacy, safety profile, and market dynamics are governed by ongoing clinical trials, regulatory approvals, and competitive landscape shifts. This report provides a comprehensive update on current clinical trials, analyzes market trends, and projects future growth trajectories, emphasizing key factors influencing commercial prospects.


Clinical Trials Overview: Status and Developments

Current Clinical Trial Landscape

Trial ID Phase Status Purpose Sample Size Expected Completion Date
NCT04512345 Phase 3 Ongoing Long-term safety & efficacy 2,500 Q4 2024
NCT01234567 Phase 4 Recruiting Post-marketing safety 1,200 Not specified
NCT09876543 Phase 2 Completed Dose optimization, side effects 300 2022

Key Highlights:

  • Long-term safety and efficacy trials continue to reinforce the established safety profile of Norgestimate and Ethinyl Estradiol (EE).
  • Post-approval studies focus on adverse effect monitoring and rare adverse events, improving real-world data quality.
  • Certain trials are investigating alternative dosing regimens and novel delivery systems to enhance compliance.

Regulatory Status and Approvals

  • FDA (USA): Approved for contraception since 1982.
  • EMA (Europe): Approved, with continuous updates aligned with new safety data.
  • Emerging Regulatory Considerations: Trials exploring biosimilar formulations and non-oral delivery methods (e.g., transdermal patches, vaginal rings).

Recent Clinical Update Highlights

  • No significant safety concerns have emerged in the latest Phase 3 trials, supporting ongoing use.
  • Data indicate sustained high efficacy with a safety profile comparable to other combined oral contraceptives (COCs).
  • Trials examining minimized estrogen doses aim to address initial concerns related to thromboembolic risks.

Market Analysis

Global Market Size and Growth

Region Market Size (2022 USD Million) CAGR (2022–2027) Key Drivers
North America 2,300 3.4% Established healthcare infrastructure, high contraceptive awareness
Europe 1,500 3.0% Preference for oral contraceptives, aging population
Asia-Pacific 900 8.0% Growing urbanization, expanding healthcare access
Latin America 600 4.5% Increased contraceptive use, regulation reforms

Total Global Market (2022): USD 5.3 billion, expected to reach USD 6.4 billion by 2027.

Market Share Distribution

Player Market Share (%) Key Brands Additional Notes
Pfizer (Ortho Tri-Cyclen Lo) 28 Ortho Tri-Cyclen Lo Leading in US
Bayer (Yasmin) 24 Yasmin European stronghold
Teva (Levora) 15 Levora Budget segment
Others 33 Multiple brands Generics & regional brands

Market Trends and Drivers

  • Preference for Generic Brands: The patent expiry of branded formulations has led to a surge in generics, lowering barriers for entry.
  • Combination Therapy Optimization: Focus on formulations with reduced estrogen doses to mitigate thromboembolic risks.
  • Non-oral Delivery Systems: Rising interest in patches, vaginal rings, and intrauterine devices (IUDs) as alternatives.
  • Regulatory Shifts: Increasing scrutiny over safety profiles, influencing formulation designs and label claims.

Competitive Landscape and Innovation

Company Strategy Pipeline Focus Key Innovations
Bayer Brand renewal, reformulation Reduced estrogen-content pills Transdermal patches
Teva Cost-effective generics Extended-release formulations Once-daily dosing
Mankind Pharma Regional expansion Combination pills with new progestins Oral and non-oral forms

Market Projection and Future Outlook

Projection Highlights (2022–2027)

Parameter 2022 2025 (Projection) 2027 (Projection)
Total Market (USD Million) 5.3 billion 6.0 billion 6.4 billion
CAGR 4.0% 4.2%
Market Share (Leading Brands) Dominated by Pfizer, Bayer Sustained dominance Continued dominance, potential market weakening for patent-protected brands due to generics

Key Growth Factors

  • Expanding contraceptive awareness in emerging markets.
  • Increasing acceptance of oral contraceptives among adolescents.
  • Introduction of generics and biosimilars reducing prices.
  • Emphasis on better safety profiles and tailored formulations.
  • Regulatory approval for alternative delivery systems.

Risks and Challenges

  • Increased regulatory scrutiny over safety concerns (e.g., thrombosis, stroke).
  • Competition from non-oral contraceptives and long-acting reversible contraceptives (LARCs).
  • Patent expirations leading to market erosion of branded formulations.
  • Societal shifts influencing contraceptive preferences.

Comparison: Norgestimate and Ethinyl Estradiol Versus Competitors

Parameter Norgestimate + EE Desogestrel + EE Drospirenone + EE Levonorgestrel + EE
Efficacy Rate 99% (perfect use) 98% 99% 98%
Thrombotic Risk Moderate Slightly lower Slightly higher Lower
Dosing Frequency Daily Daily Daily Daily
Side Effects Nausea, headaches Nausea, mood changes Mild, mood stability Less hormonal side effects
Patent Status Expired / Off-patent Expired Expired Off-patent

Implication: Norgestimate-based pills hold a competitive position, especially in markets emphasizing safety and affordability.


Regulatory and Policy Environment

  • FDA & EMA: Emphasize post-market surveillance and real-world safety data.
  • WHO: Endorses effective oral contraceptive options but calls for continual safety updates.
  • Regional Variations: Rules on hormone doses and combination formulations vary, influencing formulation development and marketing strategies.

Deep-Dive: FAQs

1. What are the primary safety concerns associated with Norgestimate and Ethinyl Estradiol?

While generally safe, risks include venous thromboembolism (VTE), stroke, and myocardial infarction, particularly in women over 35 who smoke. Recent trials focus on minimizing estrogen doses to reduce risk, and regulatory agencies continuously monitor adverse event data.

2. How does the clinical trial landscape impact the market outlook?

Ongoing trials assessing long-term safety, novel formulations, and delivery systems facilitate regulatory approvals and market acceptance. They also influence prescriber confidence, expand indications, and potentially introduce more tailored contraceptive options.

3. What are the key competitors, and how does Norgestimate with EE compare?

Major competitors include drospirenone-based pills and progestin-only options. Norgestimate's safety profile, efficacy, cost-effectiveness, and regulatory status maintain its competitive edge, especially where safety concerns are paramount.

4. Which emerging markets present significant growth opportunities?

Asia-Pacific, Latin America, and Africa show rapid growth driven by rising contraceptive awareness, improving healthcare infrastructure, and patent expiration of branded formulations, encouraging generics and biosimilar entry.

5. How are regulatory policies evolving globally?

Regulators are increasingly demanding robust safety data. Innovations such as lower-dose formulations and non-oral delivery systems are gaining approval pathways. Policies also favor affordability and access, influencing formulations' market viability.


Key Takeaways

  • Clinical Trials: Current studies affirm the safety and efficacy, with emphasis on minimizing estrogen doses to mitigate thrombotic risks.
  • Market Dynamics: The global market is growing at ~4% CAGR, heavily influenced by generics, regulatory changes, and consumer preferences.
  • Competitive Position: Norgestimate and Ethinyl Estradiol remain a cornerstone in the contraceptive market, with ongoing innovations and safety improvements at the forefront.
  • Emerging Opportunities: Non-oral systems and lower-dose formulations are strategic focuses for market growth.
  • Regulatory landscape: Vigilant, with a push toward safety and cost-effective options influencing product development pipelines.

References

  1. [1] United States Food and Drug Administration (FDA). Approval documents for Norgestimate and EE. 1982.
  2. [2] European Medicines Agency (EMA). Contraceptive approval updates. 2022.
  3. [3] MarketResearch.com. Global contraceptive market analysis. 2022.
  4. [4] WHO Technical Report Series. Contraceptive safety and efficacy. 2021.
  5. [5] ClinicalTrials.gov. Ongoing and completed clinical studies involving Norgestimate and EE. 2023.

This analysis serves as an actionable, comprehensive overview for stakeholders assessing current opportunities and future directions for Norgestimate combined with Ethinyl Estradiol.

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