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A Study of AK002 in Patients With Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, and Perennial Allergic Conjunctivitis (KRONOS)

Primary Purpose

Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, Perennial Allergic Conjunctivitis

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
AK002
Sponsored by
Allakos Inc.
About
Eligibility
Locations
Outcomes
Full info

About this trial

This is an interventional other trial for Atopic Keratoconjunctivitis focused on measuring AKC, PAC, VKC

Eligibility Criteria

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Provided written informed consent
  2. Male or female aged ≥18 and ≤80 years at the time of signing the informed consent form
  3. Confirmed diagnosis of AKC, VKC, or PAC and an average total ACS score of ≥15 calculated from all daily ACS questionnaires completed during the screening period (minimum of 14 daily ACS questionnaires must be completed). Total ACS score is the sum of itching, light sensitivity, eye pain, foreign body sensation, and watering symptom scores (and excludes atopic dermatitis, allergic asthma, and allergic rhinitis scores).
  4. History of topical corticosteroid and/or systemic corticosteroid use for the treatment of allergic conjunctivitis (AKC, VKC, or PAC)
  5. Stable dose(s) of allowed AKC, VKC, or PAC medication(s) during the 14 days prior to Day 1; and commitment to remaining on the same dose(s) of AKC, VKC, or PAC medication(s) for the entire duration of study participation (unless dose modification is due to unforeseen medical necessity) per Section 8.1 and Section 8.2.
  6. Willing and able to comply with the study procedures and visit schedule, including follow-up visits
  7. Negative Screening ova and parasite test
  8. Female patients must be either post-menopausal for at least 1 year with FSH level >40 mIU/mL at Screening or surgically sterile (tubal ligation, hysterectomy or bilateral oophorectomy) for at least 3 months, or if of child-bearing potential, have a negative pregnancy test and agree to use dual methods of contraception, or abstain from sexual activity from Screening until the end of the study, or for 120 days following the last dose of study drug, whichever is longer.

Male patients with female partners of childbearing potential must agree to use a highly effective method of contraception from Screening until the end of the study or for 120 days following the last dose of study drug, whichever is longer. All fertile men with female partners of childbearing potential should be instructed to contact the Investigator immediately if they suspect their partner might be pregnant (e.g., missed or late menstrual period) at any time during study participation.

Exclusion Criteria:

  1. Known hypersensitivity to any constituent of the study drug
  2. Women who are pregnant, breastfeeding, or planning to become pregnant while participating in the study
  3. Presence of abnormal laboratory values considered to be clinically significant by the Investigator
  4. Any disease or condition (medical or surgical) which, in the opinion of the Investigator, would place the patient at increased risk
  5. History of malignancy, exempting: carcinoma in situ in the cervix, early stage prostate cancer, non-melanoma skin cancers, or cancers that have been in remission for more than 5 years and are considered cured (except for breast cancer). All history of malignancy (including diagnosis, dates, and compliance with cancer screening recommendations) must be documented and certified by the Investigator.
  6. Contact lens use within 48 hours prior to first AK002 dose
  7. Participation in a concurrent interventional study with the last intervention occurring within 30 days prior to administration of study drug (or 90 days or 5 half-lives, whichever is longer, for biologic products)
  8. Treatment with chemotherapy or radiotherapy in the preceding 6 months
  9. Treatment for a clinically significant helminthic parasitic infection within 6 months of screening
  10. Use during the 30 days before Screening (or 5 half-lives, whichever is longer) or use during the Screening period of topical decongestants, topical vasoconstrictors, topical calcineurin inhibitors, topical corticosteroids*, omalizumab, dupilumab, systemic immunosuppressive drugs, or systemic corticosteroids with a daily dose >10 mg prednisone or equivalent per Section 8.1 and Section 8.2

    *Topical corticosteroids for atopic dermatitis, corticosteroid nasal sprays for rhinitis, and inhaled corticosteroids for allergic asthma are allowed.

  11. Vaccination with live attenuated vaccines within 30 days prior to initiation of treatment in the study, during the treatment period, or vaccination expected within 5 half-lives (4 months) of the study drug administration
  12. Positive hepatitis serology results, except for vaccinated patients or patients with past but resolved hepatitis, at Screening
  13. Positive HIV serology results at Screening
  14. Known history of alcohol, drug, or other substance abuse or dependence
  15. Any other reason that (in the opinion of the Investigator or Medical Monitor) makes the patient unsuitable for enrollment

Sites / Locations

  • Byers Eye Institute at Stanford University
  • Riverside Clinical Research
  • University of Maryland, Department of Ophthalmology and Visual Sciences
  • Ocular Immunology and Uveitis Foundation
  • Tauber Eye Center
  • Ophthalmology Associates
  • Metropolitan Eye Research and Surgery Institute
  • UPMC Eye Center

Outcomes

Primary Outcome Measures

To evaluate the safety and tolerability by evaluating Clinical laboratory parameters and adverse events assessed using the CTCAE version 4.03

Secondary Outcome Measures

To evaluate the pharmacodynamics of AK002 in patients with AKC, VKC, or PAC as measured by changes from baseline in absolute peripheral blood counts of eosinophils and basophils
To evaluate the pharmacodynamics of AK002 using the Allergic Conjunctivitis Symptom Questionnaire (ACS)
To evaluate the pharmacodynamics of AK002 in patients with AKC, VKC, or PAC as measured by changes from baseline symptoms associated with AKC, VKC, or PAC as measured daily by a disease-specific patient questionnaire, the Allergic Conjunctivitis Symptom Questionnaire (ACS)

Full Information

First Posted
December 14, 2017
Last Updated
August 28, 2019
Sponsor
Allakos Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT03379311
Brief Title
A Study of AK002 in Patients With Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, and Perennial Allergic Conjunctivitis
Acronym
KRONOS
Official Title
A Phase 1b, Open-Label, Multiple Dose, Proof-of-Concept Study to Evaluate the Safety, Tolerability, and Pharmacodynamics of AK002 in Patients With Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, and Perennial Allergic Conjunctivitis
Study Type
Interventional

2. Study Status

Record Verification Date
August 2019
Overall Recruitment Status
Completed
Study Start Date
February 26, 2018 (Actual)
Primary Completion Date
August 8, 2019 (Actual)
Study Completion Date
August 8, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Allakos Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
This is a Phase 1b, open-label, study to assess the effects of AK002, given as monthly intravenous infusion for 6 doses at up to 3 mg/kg.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, Perennial Allergic Conjunctivitis
Keywords
AKC, PAC, VKC

7. Study Design

Primary Purpose
Other
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
30 (Actual)

8. Arms, Groups, and Interventions

Intervention Type
Drug
Intervention Name(s)
AK002
Intervention Description
AK002 is a humanized non-fucosylated immunoglobulin G1 (IgG1) monoclonal antibody directed against Siglec-8, a member of the CD33-related family of sialic acid-binding, immunoglobulin-like lectins (Siglecs).
Primary Outcome Measure Information:
Title
To evaluate the safety and tolerability by evaluating Clinical laboratory parameters and adverse events assessed using the CTCAE version 4.03
Time Frame
Adverse events will be collected starting from the time of first study drug infusion and ending at Day 309 (±7 Days) or the ET Visit unless directed otherwise by Allakos
Secondary Outcome Measure Information:
Title
To evaluate the pharmacodynamics of AK002 in patients with AKC, VKC, or PAC as measured by changes from baseline in absolute peripheral blood counts of eosinophils and basophils
Time Frame
Starting pre-dose on day -1 to day 309 or early term visit
Title
To evaluate the pharmacodynamics of AK002 using the Allergic Conjunctivitis Symptom Questionnaire (ACS)
Description
To evaluate the pharmacodynamics of AK002 in patients with AKC, VKC, or PAC as measured by changes from baseline symptoms associated with AKC, VKC, or PAC as measured daily by a disease-specific patient questionnaire, the Allergic Conjunctivitis Symptom Questionnaire (ACS)
Time Frame
Throughout the study from screening to day 309 or early term visit

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Provided written informed consent Male or female aged ≥18 and ≤80 years at the time of signing the informed consent form Confirmed diagnosis of AKC, VKC, or PAC and an average total ACS score of ≥15 calculated from all daily ACS questionnaires completed during the screening period (minimum of 14 daily ACS questionnaires must be completed). Total ACS score is the sum of itching, light sensitivity, eye pain, foreign body sensation, and watering symptom scores (and excludes atopic dermatitis, allergic asthma, and allergic rhinitis scores). History of topical corticosteroid and/or systemic corticosteroid use for the treatment of allergic conjunctivitis (AKC, VKC, or PAC) Stable dose(s) of allowed AKC, VKC, or PAC medication(s) during the 14 days prior to Day 1; and commitment to remaining on the same dose(s) of AKC, VKC, or PAC medication(s) for the entire duration of study participation (unless dose modification is due to unforeseen medical necessity) per Section 8.1 and Section 8.2. Willing and able to comply with the study procedures and visit schedule, including follow-up visits Negative Screening ova and parasite test Female patients must be either post-menopausal for at least 1 year with FSH level >40 mIU/mL at Screening or surgically sterile (tubal ligation, hysterectomy or bilateral oophorectomy) for at least 3 months, or if of child-bearing potential, have a negative pregnancy test and agree to use dual methods of contraception, or abstain from sexual activity from Screening until the end of the study, or for 120 days following the last dose of study drug, whichever is longer. Male patients with female partners of childbearing potential must agree to use a highly effective method of contraception from Screening until the end of the study or for 120 days following the last dose of study drug, whichever is longer. All fertile men with female partners of childbearing potential should be instructed to contact the Investigator immediately if they suspect their partner might be pregnant (e.g., missed or late menstrual period) at any time during study participation. Exclusion Criteria: Known hypersensitivity to any constituent of the study drug Women who are pregnant, breastfeeding, or planning to become pregnant while participating in the study Presence of abnormal laboratory values considered to be clinically significant by the Investigator Any disease or condition (medical or surgical) which, in the opinion of the Investigator, would place the patient at increased risk History of malignancy, exempting: carcinoma in situ in the cervix, early stage prostate cancer, non-melanoma skin cancers, or cancers that have been in remission for more than 5 years and are considered cured (except for breast cancer). All history of malignancy (including diagnosis, dates, and compliance with cancer screening recommendations) must be documented and certified by the Investigator. Contact lens use within 48 hours prior to first AK002 dose Participation in a concurrent interventional study with the last intervention occurring within 30 days prior to administration of study drug (or 90 days or 5 half-lives, whichever is longer, for biologic products) Treatment with chemotherapy or radiotherapy in the preceding 6 months Treatment for a clinically significant helminthic parasitic infection within 6 months of screening Use during the 30 days before Screening (or 5 half-lives, whichever is longer) or use during the Screening period of topical decongestants, topical vasoconstrictors, topical calcineurin inhibitors, topical corticosteroids*, omalizumab, dupilumab, systemic immunosuppressive drugs, or systemic corticosteroids with a daily dose >10 mg prednisone or equivalent per Section 8.1 and Section 8.2 *Topical corticosteroids for atopic dermatitis, corticosteroid nasal sprays for rhinitis, and inhaled corticosteroids for allergic asthma are allowed. Vaccination with live attenuated vaccines within 30 days prior to initiation of treatment in the study, during the treatment period, or vaccination expected within 5 half-lives (4 months) of the study drug administration Positive hepatitis serology results, except for vaccinated patients or patients with past but resolved hepatitis, at Screening Positive HIV serology results at Screening Known history of alcohol, drug, or other substance abuse or dependence Any other reason that (in the opinion of the Investigator or Medical Monitor) makes the patient unsuitable for enrollment
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Quan D Nguyen, MD, MSc
Organizational Affiliation
Stanford University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Byers Eye Institute at Stanford University
City
Palo Alto
State/Province
California
ZIP/Postal Code
94303
Country
United States
Facility Name
Riverside Clinical Research
City
Edgewater
State/Province
Florida
ZIP/Postal Code
32132
Country
United States
Facility Name
University of Maryland, Department of Ophthalmology and Visual Sciences
City
Baltimore
State/Province
Maryland
ZIP/Postal Code
21201
Country
United States
Facility Name
Ocular Immunology and Uveitis Foundation
City
Waltham
State/Province
Massachusetts
ZIP/Postal Code
02451
Country
United States
Facility Name
Tauber Eye Center
City
Kansas City
State/Province
Missouri
ZIP/Postal Code
64111
Country
United States
Facility Name
Ophthalmology Associates
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63131
Country
United States
Facility Name
Metropolitan Eye Research and Surgery Institute
City
Palisades Park
State/Province
New Jersey
ZIP/Postal Code
07650
Country
United States
Facility Name
UPMC Eye Center
City
Pittsburgh
State/Province
Pennsylvania
ZIP/Postal Code
15213
Country
United States

12. IPD Sharing Statement

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A Study of AK002 in Patients With Atopic Keratoconjunctivitis, Vernal Keratoconjunctivitis, and Perennial Allergic Conjunctivitis

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