Evaluation of the Safety and Efficacy of Ketotifen 4.0% Patch as Compared to Placebo Patch, Olopatadine 0.2% Ophthalmic Solution, and Artificial Tears in the Conjunctival Allergen Challenge (CAC) Model of Acute Allergic Conjunctivitis
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ClinicalTrials.gov Identifier: NCT00836485 |
Recruitment Status :
Completed
First Posted : February 4, 2009
Last Update Posted : May 19, 2009
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Allergic Conjunctivitis | Drug: Ketotifen 4.0% Patch Drug: Placebo Drug: Olopatadine 0.2% Drug: Artificial tears | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 120 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Prospective, Multi-Center, Double-Masked, Randomized, Placebo-Controlled Evaluation of the Safety and Efficacy of Ketotifen 4.0% Patch as Compared to Placebo Patch, Olopatadine 0.2% Ophthalmic Solution, and Artificial Tears in the Conjunctival Allergen Challenge (CAC) Model of Acute Allergic Conjunctivitis |
Study Start Date : | February 2009 |
Actual Primary Completion Date : | March 2009 |
Actual Study Completion Date : | March 2009 |

Arm | Intervention/treatment |
---|---|
Experimental: 1
Ketotifen 4.0% Patch
|
Drug: Ketotifen 4.0% Patch
This investigational drug is a transdermal patch indicated to treat allergic conjunctivitis. Application is intended for overnight wear between 8-10 hours. |
Placebo Comparator: 2
Placebo Patch
|
Drug: Placebo
The control is a placebo patch that contains only the inactive ingredients of ketotifen. |
Active Comparator: 3
Pataday(TM)
|
Drug: Olopatadine 0.2%
1 gtt/eye on two separate occasions
Other Name: Pataday(TM) |
Placebo Comparator: 4
Placebo eye drops
|
Drug: Artificial tears
1 gtt/eye on two separate occasions |
- Ocular itching and bulbar conjunctival redness [ Time Frame: Visit 3 and Visit 4 ]
- Ocular: Ciliary, episcleral, and inferior palpebral conjunctival redness; chemosis; lid swelling; tearing; ocular mucous discharge [ Time Frame: Visit 3 and Visit 4 ]
- Nasal: Rhinorrhea; ear or palate pruritis; nasal pruritis; nasal congestion; and a composite score of all nasal symptoms [ Time Frame: Visit 3 and Visit 4 ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- 18 years of age of either sex and any race
- positive history of ocular allergies and a positive skin test reaction to cat hair, cat dander, dog dander, grasses, ragweed, trees, dust mites, and/or cockroaches within the past 24 months
- able and willing to avoid all disallowed medication for the washout period and during the study
Exclusion Criteria:
- active ocular infection or skin condition
- ocular surgery within the past 3 months
- pregnancy or nursing

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00836485
United States, Massachusetts | |
Ora | |
Andover, Massachusetts, United States, 01810 |
Principal Investigator: | Gail Torkildsen, MD | ORA, Inc. | |
Principal Investigator: | TBD TBD |
Responsible Party: | Takahiro Ogawa, PhD, Senju USA, Inc. |
ClinicalTrials.gov Identifier: | NCT00836485 |
Other Study ID Numbers: |
SNJ-ALK201/08-003-11 |
First Posted: | February 4, 2009 Key Record Dates |
Last Update Posted: | May 19, 2009 |
Last Verified: | May 2009 |
Conjunctivitis Conjunctivitis, Allergic Conjunctival Diseases Eye Diseases Hypersensitivity, Immediate Hypersensitivity Immune System Diseases Olopatadine Hydrochloride Ketotifen Lubricant Eye Drops Ophthalmic Solutions Pharmaceutical Solutions Anti-Inflammatory Agents, Non-Steroidal Analgesics, Non-Narcotic Analgesics |
Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Anti-Inflammatory Agents Antirheumatic Agents Anti-Allergic Agents Histamine H1 Antagonists, Non-Sedating Histamine H1 Antagonists Histamine Antagonists Histamine Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Antipruritics Dermatologic Agents |