Last Updated: June 27, 2026

CLINICAL TRIALS PROFILE FOR SEASONALE


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All Clinical Trials for SEASONALE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00117260 ↗ Study to Evaluate the Safety and Efficacy of Seasonale for Treatment of Low Bone Mineral Density Withdrawn Duramed Research Phase 3 2005-07-01 This is a randomized, multicenter, placebo-controlled study to evaluate the effects of Seasonale, an extended-regimen oral contraceptive, on bone mineral density in adolescent females who have had their menstrual period but now have secondary amenorrhea and also have osteopenia. The duration of the study for each patient will be approximately two years.
NCT00117273 ↗ A Study to Evaluate Suppression of the Pituitary-Ovarian Axis With Three Different Oral Contraceptive Regimens Completed Duramed Research Phase 3 2005-06-01 This is a randomized, open-label study to evaluate pituitary ovarian suppression in healthy, reproductive-aged women using three different regimens of oral contraceptives (OCs). Two extended regimen OCs, Seasonale (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 84 days followed by 7 days of placebo), and Seasonique (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 84 days followed by 7 days of ethinyl estradiol 0.01 mg), and a 28-day regimen OC, Portia (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 21 days followed by 7 days of placebo).
NCT00326404 ↗ Continuous Versus Cyclic Use of Oral Contraceptive Pills in Adolescents Unknown status The Physicians' Services Incorporated Foundation Phase 3 2006-05-01 The primary purpose of this study is to compare the compliance rates of adolescents who take oral contraceptives (OCPs) continuously to those who take OCPs cyclically.
NCT00326404 ↗ Continuous Versus Cyclic Use of Oral Contraceptive Pills in Adolescents Unknown status The Hospital for Sick Children Phase 3 2006-05-01 The primary purpose of this study is to compare the compliance rates of adolescents who take oral contraceptives (OCPs) continuously to those who take OCPs cyclically.
NCT00394771 ↗ A Study to Evaluate Bleeding Patterns With Three Different Doses of DR-1031 Compared to Seasonale Completed Duramed Research Phase 2 2006-10-01 This is a 4-arm study to evaluate and compare bleeding patterns between three different doses of DR-1031 oral contraceptive with Seasonale oral contraceptive. Study participants will receive physical and gynecological exams, including Pap smear. During the study, all participants will be required to complete a diary
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for SEASONALE

Condition Name

Condition Name for SEASONALE
Intervention Trials
Breakthrough Bleeding 1
Contraception 1
Healthy 1
Osteopenia 1
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Condition MeSH

Condition MeSH for SEASONALE
Intervention Trials
Hemorrhage 1
Pituitary Diseases 1
Bone Diseases, Metabolic 1
Metrorrhagia 1
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Clinical Trial Locations for SEASONALE

Trials by Country

Trials by Country for SEASONALE
Location Trials
United States 26
Canada 1
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Trials by US State

Trials by US State for SEASONALE
Location Trials
Texas 2
Maryland 1
Louisiana 1
Kansas 1
Indiana 1
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Clinical Trial Progress for SEASONALE

Clinical Trial Phase

Clinical Trial Phase for SEASONALE
Clinical Trial Phase Trials
Phase 3 3
Phase 2 1
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Clinical Trial Status

Clinical Trial Status for SEASONALE
Clinical Trial Phase Trials
Completed 2
Unknown status 1
Withdrawn 1
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Clinical Trial Sponsors for SEASONALE

Sponsor Name

Sponsor Name for SEASONALE
Sponsor Trials
Duramed Research 3
The Physicians' Services Incorporated Foundation 1
The Hospital for Sick Children 1
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Sponsor Type

Sponsor Type for SEASONALE
Sponsor Trials
Industry 3
Other 2
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SEASONALE: Clinical Trials Update, Market Analysis, and Projection

Last updated: May 4, 2026

What is SEASONALE and what product form drives the market?

SEASONALE (levonorgestrel and ethinyl estradiol tablets) is a combined oral contraceptive (COC) designed for an extended dosing schedule of 84 days of active dosing followed by 7 days of placebo (21/7 and 24/7 schedules are not applicable to this product’s core regimen; SEASONALE is the 84/7 approach). The product’s market behavior is shaped by payer coverage of COCs, generic substitution in US commerce, and brand persistence where exclusivity and switching barriers remain.

Key product identifiers used across commercial and regulatory analyses:

  • Active ingredients: levonorgestrel + ethinyl estradiol
  • Dosage form: oral tablets
  • Dosing concept: extended-cycle regimen (84 active days / 7 placebo days)
  • Brand: SEASONALE

Source for regimen and product identity: FDA labeling for SEASONALE (accessed via FDA Drugs@FDA). [1]

What is the current clinical trial posture for SEASONALE?

No publicly indexed, ongoing interventional clinical trials for SEASONALE were identified in the major public registries used for business diligence in this workflow (ClinicalTrials.gov and related FDA/NLM-facing discovery points). SEASONALE functions today as a mature, established COC product with clinical evidence rooted in earlier submissions and post-marketing experience rather than a pipeline of fresh pivotal trials.

Clinical evidence pattern for mature COCs For legacy COCs, new trials typically shift to:

  • bioequivalence for generic entry,
  • formulation or pharmacokinetic bridging,
  • safety/observational analyses rather than efficacy pivots.

For SEASONALE specifically, the product is supported through labeling and earlier clinical data rather than a current wave of new efficacy trials indexed as active. FDA labeling compiles prior clinical findings and safety information through the product approval history. [1]

What does the FDA labeling still define as clinical outcomes and safety profile?

FDA labeling remains the operational clinical reference for prescribers and formulary committees:

  • Indicated use: prevention of pregnancy
  • Contraindications: include major thrombotic disorders, certain cardiovascular conditions, and other risk-based exclusions typical of COCs (detailed in labeling). [1]
  • Warnings: class risks for combined hormonal contraceptives, including thromboembolic events and other safety considerations. [1]
  • Common adverse reactions and risks: described in the labeling sections relevant to ongoing pharmacovigilance review. [1]

From a market perspective, these labeling-defined risk boundaries govern switching, adherence support, and payer authorization policies where utilization management exists.

How does the US market landscape treat SEASONALE: brand, generics, and payer behavior?

SEASONALE is a brand in a therapeutic class that is heavily affected by generic availability and interchange at pharmacy. In mature COC categories:

  • Therapeutic substitution is common at pharmacy counters due to generic equivalents.
  • Formulary placement often prioritizes lowest net cost, shifting utilization toward generics or preferred brands in the same extended-cycle bucket.
  • Clinical differentiation across extended-cycle regimens is typically modest from a prescriber standpoint, since all COCs share the same core contraceptive mechanism and face the same class risk framework.

Implication for SEASONALE commercial trajectory

  • Where generic levonorgestrel/ethinyl estradiol extended-cycle products are available, SEASONALE’s share is structurally pressured through price competition and automatic substitution rules.
  • Remaining value is tied to persistent brand loyalty, prescriber preference for specific dosing behavior, and managed care contracts that still keep SEASONALE on preferred lists at acceptable net prices.

What competitive set matters most for SEASONALE?

The relevant competitive set is not “COCs” broadly; it is extended-cycle COCs with similar hormone combinations and regimen logic:

  • Levonorgestrel/ethinyl estradiol extended-cycle products (brand or authorized generic forms where present)
  • Other extended-cycle COCs using different progestins/estrogen but with comparable dosing cadence (payer views extended-cycle adherence benefits as the key differentiator)

The market access unit is the formulary class placement for extended-cycle contraception plus pharmacy substitution rules.

What market projections are supportable from available evidence?

No US market size by brand, no unit volume, and no revenue series for SEASONALE were provided in the available dataset behind this response. Under the constraint of not fabricating figures, the only defensible projection is directional and mechanism-linked:

Projected market direction (directional, class-typical)

  • SEASONALE share: structurally pressured versus generics and preferred products in the extended-cycle segment.
  • Total segment demand: stable to growing slowly over time, driven by contraception demand and adherence patterns, but brand-level penetration depends on net pricing and formulary status.
  • Revenue trajectory: expected to track net pricing and placement, not a growth curve tied to new clinical superiority.

Because the response cannot cite brand-level sales or trial-defined endpoints that would anchor numeric forecasting, the projection is expressed as risk-adjusted direction rather than a numerical market forecast.

How does the regulatory and clinical record impact future value?

SEASONALE’s value depends on the “label-to-life” pipeline: prescriber behavior, formulary compliance, and ongoing safety surveillance rather than renewal trials.

Operational drivers:

  • Label-defined contraindications and warnings shape where clinicians will prescribe and where insurers will approve. [1]
  • Switching risk management: extended-cycle COCs are often covered with step edits or preferred status; once a patient is stable, clinicians may resist switching, which can stabilize brand uptake even under generic pressure.

What is the business case today: R&D or investment angle?

SEASONALE itself is not a typical candidate for forward R&D value creation because it is a mature product without an identified active trial pipeline. The investment question for SEASONALE is usually commercial and contractual:

  • whether the brand remains on preferred formularies at net prices,
  • whether biosafety and class risks affect contract retention,
  • whether pharmacy substitution continues to erode share.

From a clinical operations angle, the drug’s continuing relevance is supported by enduring FDA labeling and post-marketing safety practices rather than new efficacy evidence. [1]


Key Takeaways

  • SEASONALE is a mature extended-cycle COC (84 active days / 7 placebo) with clinical positioning defined by FDA labeling. [1]
  • No publicly indexed, ongoing interventional clinical trials were identified for SEASONALE in standard public trial discovery. The clinical record is labeling-driven. [1]
  • Commercial outlook is shaped by generic substitution, formulary preference, and net pricing, not new clinical differentiation.
  • Numeric market forecasting cannot be anchored to provided brand sales or segment unit data; projections are directional: brand share is pressured, segment demand is comparatively stable.

FAQs

  1. What is SEASONALE’s dosing regimen?
    SEASONALE uses an extended-cycle structure with 84 days of active dosing followed by 7 days of placebo. [1]

  2. What is SEASONALE indicated for?
    Prevention of pregnancy. [1]

  3. Does SEASONALE have an active clinical trial program today?
    No ongoing interventional trials were identified in standard public trial discovery; the product relies on its established labeling evidence. [1]

  4. What are the main risks that influence prescribing and coverage for SEASONALE?
    Class risks associated with combined hormonal contraceptives, including thromboembolic and other safety constraints described in labeling. [1]

  5. What most strongly affects SEASONALE market performance?
    Generic substitution, pharmacy interchange, and formulary placement within extended-cycle COC classes, which determine net pricing and utilization.


References

[1] U.S. Food and Drug Administration. SEASONALE (levonorgestrel and ethinyl estradiol) prescribing information / FDA label. Drugs@FDA. https://www.accessdata.fda.gov/scripts/cder/daf/ (accessed via FDA Drugs@FDA record for SEASONALE).

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