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Age-related Macular DegenerationPhase 1NCT01835015

Pharmacokinetics of CLG561 in Patients With Advanced Age-Related Macular Degeneration

A Phase 1 study testing CLG561 in people with Age-related Macular Degeneration, run by Alcon Research.

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 safety, tolerability, and serum pharmacokinetics of CLG561 in subjects with advanced age-related macular degeneration (AMD). Read more about this study

Who is it for?
Ages 55 to 90 years
Conditions the study is for
Age-related Macular Degeneration
What is being tested?
CLG561
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
No sites listed yet
Study dates
May 2013to Nov 2014
Phase
Phase 1
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 55 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of age-related macular degeneration in study eye, as specified in protocol.
  • Poor visual acuity in study eye, as specified in protocol.
  • Willing to receive meningitis and pneumonia vaccinations at least 2 weeks prior to study treatment.
  • Females must be post-menopausal and/or surgically sterile.
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • Treatments to the study eye within 28 days prior to study treatment, as specified in protocol.
  • Any disease or medication expected to cause systemic or ocular immunosuppression.
  • Participation in another interventional clinical study or use of any experimental treatment for AMD within 12 weeks prior to study treatment.
  • Other protocol-defined exclusion criteria may apply.

About this study

Official title: A Multi-Center, Open-Label, Single Ascending Dose Study To Assess the Safety, Tolerability, and Serum Pharmacokinetics of Intravitreal CLG561 in Subjects With Advanced Age-Related Macular Degeneration

The purpose of this study is to evaluate the safety, tolerability, and serum pharmacokinetics of CLG561 in subjects with advanced age-related macular degeneration (AMD).

Read the detailed description

Subjects were divided into 5 cohorts, with the subjects in each cohort being administered a single IVT dose of CLG561 in 1 of 5 concentration levels A-E, where A=lowest and E=highest. All subjects received active CLG561. Progress from one cohort to the next was time-lagged to allow for safety review. Dosing was also time-lagged within each cohort. Only one eye (designated as the study eye) was dosed per subject. Post-dose safety assessments and ocular examination occurred immediately after the IVT injection and continued throughout the outpatient visits at pre-determined timepoints. Collection of post-injection blood samples began after the IVT injection at pre-determined timepoints. Subjects were followed for up to 84 days.

Being tested
CLG561
Keywords
First in human, Safety, Tolerability, Serum PK, Intravitreal (IVT), Age-related macular degeneration, AMD, Geographic Atrophy, Choroidal neovascularization
Medical subject headings
Macular Degeneration, Geographic Atrophy, Choroidal Neovascularization

What participants receive

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

  • CLG561Drug

    Administered by intravitreal injection, Day 1

Study groups in NCT01835015
Study groupRoleWhat they receive
CLG561, Concentration Level AExperimentalSingle 50 μL intravitreal injection of CLG561, Dose Level A
Receives: Drug: CLG561
CLG561, Concentration Level BExperimentalSingle 50 μL intravitreal injection of CLG561, Dose Level B
Receives: Drug: CLG561
CLG561, Concentration Level CExperimentalSingle 50 μL intravitreal injection of CLG561, Dose Level C
Receives: Drug: CLG561
CLG561, Concentration Level DExperimentalSingle 50 μL intravitreal injection of CLG561, Dose Level D
Receives: Drug: CLG561
CLG561, Concentration Level EExperimentalSingle 100 μL intravitreal injection of CLG561, Dose Level E
Receives: Drug: CLG561

What is being measured

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

  1. Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) by Visit - Study Eye

    BCVA (with spectacles or other visual corrective devices) using Early Treatment Diabetic Retinopathy Study (ETDRS) testing was reported in letters read correctly. Improvement of BCVA was defined as an increase (gain) in letters read from the baseline assessment. One eye (study eye) contributed to the analysis.

    Measured: Baseline, Day 2, Day 4, Day 15, Day 29, Day 57, Day 85

  2. Mean Intra-Ocular Pressure (IOP) by Visit - Study Eye

    IOP was measured by Goldmann applanation tonometry or tonopen, at the discretion of the Investigator, and reported in mmHg (millimeters of mercury). A higher IOP can be a greater risk factor for developing glaucoma or glaucoma progression (leading to optic nerve damage). One eye (study eye) contributed to the analysis.

    Measured: Baseline, Day 1, Day 2, Day 4, Day 15, Day 29, Day 57, Day 85

  3. Number of Subjects With Change From Normal to Abnormal in Fundus Examination at Any Post-Therapy Visit as Compared to Baseline Assessment

    A dilated fundus examination was performed to evaluate the health of the retina, macula, choroid, and optic nerve. Subjects having a normal baseline evaluation were examined at subsequent visits, and any change from normal to abnormal was recorded. Criteria for reclassifying from normal to abnormal were left to the opinion of the investigators. One eye (study eye) contributed to the analysis. None of the abnormalities were deemed related to the study medication.

    Measured: Baseline, Day 2, Day 4, Day 8, Day 15, Day 29, Day 57, Day 85

  4. Number of Subjects With a Change From Normal to Abnormal in Ocular Signs at Any Post-Therapy Visit as Compared to Baseline Assessment

    A slit-lamp biomicroscopy examination was performed to evaluate the anterior segment of the eye. Subjects having a normal baseline evaluation were examined at subsequent visits, and any change from normal to abnormal was recorded. Criteria for reclassifying from normal to abnormal were left to the opinion of the investigators. One eye (study eye) contributed to the analysis. None of the abnormalities were deemed related to the study medication.

    Measured: Baseline, Day 2, Day 4, Day 8, Day 15, Day 29, Day 57, Day 85

Secondary outcomes (9)
  1. Area Under the Serum Concentration-time Curve (AUC) From Time Zero to All [AUC(0-all)]

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental pharmacokinetic (PK) method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  2. Area Under the Serum Concentration-time Curve From Time Zero to the Time of the Last Quantifiable Concentration [AUC(0-last)]

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental PK method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  3. Time to Reach the Maximum Serum Concentration After Drug Administration (Tmax)

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental PK method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  4. Dose Normalized Observed Maximum Serum Concentration Following Drug Administration (Cmax/D)

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental PK method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  5. Dose-normalized Area Under the Serum Concentration-time Curve From Time Zero to the Time of the Last Quantifiable Concentration [AUC(0-last)/D]

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method. These data were analyzed using a noncompartmental PK method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  6. Area Under the Serum Concentration-time Curve From Time Zero to Time "t" Where t is a Defined Time Point After Administration [AUC(0-t)]

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  7. Terminal Elimination Half-life (T½)

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  8. The Apparent Volume of Distribution During the Terminal Elimination Phase Following Extravascular Administration (Vz/F)

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

  9. Apparent Systemic (or Total Body) Clearance From Serum Following Extravascular Administration (CL/F)

    Serum concentrations at each collection time point were quantitated, where possible, using a validated immunoassay method.

    Measured: Day 1 pre-injection, 2h, 6h, Day 2, Day 4, Day 6, Day 8, Day 11, Day 15, Day 29, Day 57, Day 85

Timeline

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

  1. First posted18 Apr 2013 (estimated)
  2. Study startMay 2013
  3. Primary completionNov 2014
  4. Study completionNov 2014

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 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01835015
Sponsor's protocol ID
C-12-074
Status last verified
Feb 2016
First submitted
16 Apr 2013
Last updated
25 Mar 2016
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CLG561 in people with Age-related Macular Degeneration, run by Alcon Research.

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 5 inclusion and 4 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 25 Mar 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

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

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 25 Mar 2016). 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?

Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) by Visit - Study Eye (time frame: Baseline, Day 2, Day 4, Day 15, Day 29, Day 57, Day 85). The study lists 4 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 25 Mar 2016.

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