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ClinicalTrials.gov 3 recruiting now official registry

Allergic Conjunctivitis clinical trials

Every US clinical trial registered for Allergic Conjunctivitis — phase mix, recruiting status, and the sponsors running them, straight from the NIH ClinicalTrials.gov registry.

21 US clinical trials · 3 currently recruiting

The research picture

Allergic Conjunctivitis has 21 registered US clinical trials, 3 of them open to new participants right now — about 14% of the total.

3
recruiting participants now
14%
of trials open to enrollment
12
in Phase 3–4 (later-stage)
4
top sponsor: ORA

Counts reflect the public ClinicalTrials.gov registry as last mirrored by PlainTrial. Status and phase are reported by each study's sponsor. This is reference information, not medical advice.

Active & Recent Trials

RECRUITING Phase 3 350 participants

Study of Bet v1 Antibodies Effect on Eye Allergy Symptoms in Adolescents and Adults With Birch Pollen Allergy

Regeneron Pharmaceuticals

NCT07309432

RECRUITING Phase 2 66 participants

Evaluation of TL-925 for the Treatment of Allergic Conjunctivitis

Telios Pharma

NCT06686472

RECRUITING Phase 2 60 participants

Evaluation of TL-925 for the Treatment of Seasonal Allergic Conjunctivitis

Telios Pharma

NCT07220408

COMPLETED Phase 3 512 participants

Evaluation of the Safety and Pharmacokinetics of Brimonidine Tartrate 0.025%/Ketotifen Fumarate 0.035% Combination Ophthalmic Solution

Bausch & Lomb Incorporated

NCT05815758

COMPLETED Phase 3 318 participants

ALLEVIATE Trial - A Phase 3 Trial in Subjects With Allergic Conjunctivitis

Aldeyra Therapeutics

NCT03494504

COMPLETED Phase 4 180 participants

Assessing the Efficacy of Maxidex® and Patanol® for the Treatment of Allergic Conjunctivitis

Alcon Research

NCT01119287

COMPLETED Phase 2 155 participants

Evaluation of Efficacy of Coadministration of FOV1101-00 and Prednisolone Acetate in Patients With Mild Ongoing Ocular Allergic Inflammation

Fovea Pharmaceuticals

NCT00833495

COMPLETED Phase 3 141 participants

Ketotifen/Naphazoline Ophthalmic Solution in the Conjunctival Allergen Challenge Model of Acute Allergic Conjunctivitis.

Bausch & Lomb Incorporated

NCT00770133

COMPLETED Phase 2 122 participants

Effect of Different Concentrations of SPARC1102 on Allergic Conjunctivitis

Sun Pharma Advanced Research Company Limited

NCT01320553

COMPLETED Phase 2 120 participants

Study Evaluating the Efficacy and Safety of PRT-2761 for the Treatment of Acute and Chronic Allergic Conjunctivitis

ORA

NCT03320434

COMPLETED Phase 3 110 participants

Evaluation of Efficacy of Ophthalmic Solution in Induced Allergic Conjunctivitis

Vistakon Pharmaceuticals

NCT00244543

COMPLETED Phase 3 101 participants

A Multi-Center, Evaluation of the Onset and Duration of Action of AC-170 0.24% Compared to Vehicle

Aciex Therapeutics

NCT01881113

COMPLETED Phase 2 101 participants

Loteprednol Ophthalmic Base Compared to Loteprednol Ophthalmic Suspension vs Placebo in an Allergen Challenge

Bausch & Lomb Incorporated

NCT01107405

COMPLETED Phase 2 96 participants

Effectiveness of PR013 Topical Ophthalmic Drops Compared to Vehicle for the Treatment of Allergic Conjunctivitis

Realm Therapeutics

NCT03368339

COMPLETED Phase 3 90 participants

An Evaluation of the Onset and Duration of Action of AKF-1 Ophthalmic Solution in Treating Acute Allergic Conjunctivitis

Akorn

NCT01561521

COMPLETED Phase 4 58 participants

A Study Comparing the Efficacy of Pataday® Once Daily Relief Extra Strength to Claritin® Tablets 24-Hour in Subjects With Allergic Conjunctivitis

Andover Research Eye Institute

NCT05265910

COMPLETED Phase 4 36 participants

Evaluation of the Efficacy of Topical Ophthalmic Steroids in a Modified Conjunctival Allergen Challenge (CAC) Model

ORA

NCT00689078

COMPLETED 34 participants

A Single-Center Evaluation of the Pattern of Allergic Signs and Symptoms During 4 Weeks in Ragweed Season

ORA

NCT00982163

COMPLETED NA 21 participants

Effect of Olopatadine on Allergic Tear Mediators

University of Wisconsin, Madison

NCT00609128

COMPLETED Phase 4 13 participants

Assessment of Alcon's Ocular Image Quantification System

Alcon Research

NCT01282138

COMPLETED Phase 4 11 participants

Evaluation of the Efficacy of Topical Ophthalmic Steroids in a Modified Conjunctival Allergen Challenge (CAC) Model

ORA

NCT01534195

Phase Distribution

PhaseTrial count
Phase 2 7
Phase 3 7
Phase 4 5

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Reading the Allergic Conjunctivitis Trial Landscape

ClinicalTrials.gov lists 21 US studies indexed under Allergic Conjunctivitis, and 3 of those are currently open to recruitment — roughly 14% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Allergic Conjunctivitis shows 12 late-stage studies (Phase 3 and Phase 4 combined) alongside 7 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Allergic Conjunctivitis is led by ORA with 4 indexed trials, alongside 9 other organizations in the top contributor list. The list on this page surfaces up to 21 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Allergic Conjunctivitis?

PlainTrial tracks 21 US clinical trials for Allergic Conjunctivitis, of which 3 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Allergic Conjunctivitis?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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