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Allergic ConjunctivitisPhase 2/3AC-170NCT01332188

Efficacy of AC-170 for the Treatment of Allergic Conjunctivitis in the Conjunctival Allergen Challenge (CAC) Model

A Phase 2/3 study testing AC-170 0.05%, AC-170 0.1% and AC-170 0.24% in people with Allergic Conjunctivitis, run by Aciex Therapeutics, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the efficacy of different concentrations of AC-170 compared to vehicle in the prevention of the signs and symptoms of allergic conjunctivitis in the conjunctival allergen challenge (CAC) Model. Read more about this study

Who is it for?
Ages 10 years and older
Conditions the study is for
Allergic Conjunctivitis
What is being tested?
AC-170 0.05%, AC-170 0.1% and AC-170 0.24%
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
101 participants
Where
1 siteUnited States
Study dates
Apr 2011to Oct 2011
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 10 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Positive bilateral conjunctival allergen challenge (CAC) reaction

Who cannot join

  • Known contraindications or sensitivities to the study medication or its components.
  • Any ocular condition that, in the opinion of the investigator, could affect the subjects safety or trial parameters.
  • Use of disallowed medications during the period indicated prior to the study enrollment or during the study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Ora, Inc.

    Andover, Massachusetts, 01810

Other trials in United States

About this study

Official title: A Single Center, Double-Masked, Randomized, Vehicle-Controlled, Parallel-Group Study Evaluating the Efficacy of Three Different Concentrations of Cetirizine (0.05%, 0.1%, and 0.24%) Ophthalmic Solution Versus Vehicle in the Treatment of Allergic Conjunctivitis in the Conjunctival Allergen Challenge Model (CAC)

The purpose of this study is to evaluate the efficacy of different concentrations of AC-170 compared to vehicle in the prevention of the signs and symptoms of allergic conjunctivitis in the conjunctival allergen challenge (CAC) Model.

Being tested
AC-170 0.05%, AC-170 0.1%, AC-170 0.24%, AC-170 0%
Medical subject headings
Conjunctivitis, Allergic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AC-170 0.05%Drug

    1 drop in each eye at 3 separate times during a 21 day period

  • AC-170 0.1%Drug

    1 drop in each eye at 3 separate times during a 21 day period

  • AC-170 0.24%Drug

    1 drop in each eye at 3 separate times during a 21 day period

  • AC-170 0%Drug

    1 drop in each eye at 3 separate times during a 21 day period

Study groups in NCT01332188
Study groupRoleWhat they receive
AC-170 0.05%ExperimentalNot described
Receives: Drug: AC-170 0.05%
AC-170 0.1%ExperimentalNot described
Receives: Drug: AC-170 0.1%
AC-170 0.24%ExperimentalNot described
Receives: Drug: AC-170 0.24%
AC-170 0%Placebo comparatorNot described
Receives: Drug: AC-170 0%

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Ocular Itching at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.

    Measured: 3, 5, 7 minutes post-CAC

  2. Ocular Itching at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.

    Measured: 3, 5, 7 minutes post-CAC

  3. Ocular Itching at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.

    Measured: 3, 5, 7 minutes post-CAC

  4. Conjunctival Redness at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Conjunctival Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of conjunctival redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  5. Conjunctival Redness at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Conjunctival Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of conjunctival redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  6. Conjunctival Redness at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Conjunctival Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of conjunctival redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

Secondary outcomes (31)
  1. Ciliary Redness at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Ciliary Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ciliary redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  2. Ciliary Redness at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Ciliary Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ciliary redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  3. Ciliary Redness at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Ciliary Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ciliary redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  4. Episcleral Redness at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Episcleral Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of episcleral redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  5. Episcleral Redness at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Episcleral Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of episcleral redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  6. Episcleral Redness at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Episcleral Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of episcleral redness score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  7. Chemosis at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Chemosis was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of chemosis score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  8. Chemosis at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Chemosis was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of chemosis score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  9. Chemosis at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Chemosis was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of chemosis score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  10. Eyelid Swelling at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Eyelid swelling was assessed by the patient on a 0-3 scale (0=none to 3=severe). Average of eyelid swelling score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  11. Eyelid Swelling at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Eyelid swelling was assessed by the patient on a 0-3 scale (0=none to 3=severe). Average of eyelid swelling score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  12. Eyelid Swelling at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Eyelid swelling was assessed by the patient on a 0-3 scale (0=none to 3=severe). Average of eyelid swelling score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  13. Tearing at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Tearing was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of tearing score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  14. Tearing at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Tearing was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of tearing score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  15. Tearing at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Tearing was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of tearing score over both eyes was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  16. Rhinorrhea at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Rhinorrhea was assessed by the patient on a 0-4 scale (0=none to 4=severe). Rhinorrhea score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  17. Rhinorrhea at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Rhinorrhea was assessed by the patient on a 0-4 scale (0=none to 4=severe). Rhinorrhea score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  18. Rhinorrhea at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Rhinorrhea was assessed by the patient on a 0-4 scale (0=none to 4=severe). Rhinorrhea score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  19. Nasal Pruritus at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Nasal Pruritus was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  20. Nasal Pruritus at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Nasal Pruritus was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  21. Nasal Pruritus at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Nasal Pruritus was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  22. Ear or Palate Pruritus at Duration of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Ear or Palate Pruritus was assessed by the patient on a single 0-4 scale (0=none to 4=severe). Ear or Palate Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  23. Ear or Palate Pruritus at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Ear or Palate Pruritus was assessed by the patient on a single 0-4 scale (0=none to 4=severe). Ear or Palate Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  24. Ear or Palate Pruritus at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Ear or Palate Pruritus was assessed by the patient on a single 0-4 scale (0=none to 4=severe). Ear or Palate Pruritus score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  25. Nasal Congestion at Onset of Action (16 Hours Post-dose)

    A treatment efficacy CAC was performed 16 hours after drop instillation. Nasal Congestion was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Congestion score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  26. Nasal Congestion at Duration of Action (24 Hours Post-dose)

    A treatment efficacy CAC was performed 24 hours after drop instillation. Nasal Congestion was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Congestion score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  27. Nasal Congestion at Onset of Action (15 Minutes Post-dose)

    A treatment efficacy CAC was performed 15 minutes after drop instillation. Nasal Congestion was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Congestion score for each time point was analyzed.

    Measured: 7, 15, 20 minutes post-CAC

  28. Nasal Composite Score at Duration of Action (16 Hours Post-dose)

    A nasal composite score was summed for each patient based on the presence of at least one of the following four nasal symptoms on a 0-4 scale (0=none to 4=severe): rhinorrhea; nasal pruritus; ear or palate pruritus; and nasal congestion. The percentage of subjects with at least one nasal symptom present was calculated for each time point.

    Measured: 7, 15, 20 minutes post-CAC

  29. Nasal Composite Score at Duration of Action (24 Hours Post-dose)

    A nasal composite score was summed for each patient based on the presence of at least one of the following four nasal symptoms on a 0-4 scale (0=none to 4=severe): rhinorrhea; nasal pruritus; ear or palate pruritus; and nasal congestion. The percentage of subjects with at least one nasal symptom present was calculated for each time point.

    Measured: 7, 15, 20 minutes post-CAC

  30. Nasal Composite Score at Onset of Action (15 Minutes Post-dose)

    A nasal composite score was summed for each patient based on the presence of at least one of the following four nasal symptoms on a 0-4 scale (0=none to 4=severe): rhinorrhea; nasal pruritus; ear or palate pruritus; and nasal congestion. The percentage of subjects with at least one nasal symptom present was calculated for each time point.

    Measured: 7, 15, 20 minutes post-CAC

  31. Tolerability of Study Medication at Visit 3A

    Subjects were asked to rate the comfort of the drop in each eye upon instillation, at 1 minute, and at 2 minutes after instillation of study medication. The assessment used a 10-point scale with 0 as very comfortable and 10 as very uncomfortable. Higher scores represent a worse outcome..

    Measured: upon instillation, 1 minute and 2 minutes post instillation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Apr 2011 (estimated)
  2. Study startApr 2011
  3. Primary completionJun 2011
  4. Study completionOct 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
101 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01332188
Sponsor's protocol ID
11-100-0004
Acronym
AC-170
Status last verified
Jul 2017
First submitted
7 Apr 2011
Last updated
30 Aug 2017
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing AC-170 0.05%, AC-170 0.1% and AC-170 0.24% in people with Allergic Conjunctivitis, run by Aciex Therapeutics, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 30 Aug 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Ocular Itching at Duration of Action (16 Hours Post-dose) (time frame: 3, 5, 7 minutes post-CAC). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Aug 2017.

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