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Neovascular Age-related Macular DegenerationPhase 2NCT04684394

A Multiple Dose Study of Repeat Intravitreal Injections of GEM103 in Neovascular Age-related Macular Degeneration

A Phase 2 study testing GEM103 and Aflibercept in people with Neovascular Age-related Macular Degeneration and Retinal Disease, run by Gemini Therapeutics, Inc. at 23 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study is designed to investigate the safety and tolerability of GEM103 IVT injection + standard of care vs. sham + standard of care. Read more about this study

Who is it for?
Ages 50 years and older
What is being tested?
GEM103 and Aflibercept
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
50 participants
Where
23 sitesUnited States
Study dates
29 Dec 2020to 18 Feb 2022
Phase
Phase 2
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 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • At least 50 years old at the time of signed informed consent
  • Choroidal neovascularization (CNV) related to nAMD with the following features, as determined by the Image Reading Center
  • Maximum CNV lesion size of 12 disc areas
  • Subretinal hemorrhage less than or equal to (<=) 50% of lesion size
  • On aflibercept treatment prior to Day 1
  • Best Corrected Visual Acuity (BCVA) in the study eye between 24 to 75 letters using EDTRS

Who cannot join

  • Presence of the following ocular conditions in the study eye:
  • Any active ocular disease or condition that impact the subject to participate in the study or be a contraindication of IVT injections
  • Any intraocular surgery
  • Aphakia or complete absence of the posterior capsule
  • Prior corneal transplant
  • Scar or fibrosis greater than or equal to (>=) 50% of CNV lesion or involving center of fovea
Show all 16Show fewer
  • Presence of any of the following ocular conditions in either eye:
  • History of herpetic infection, idiopathic polypoidal choroidal vasculopathy (PCV), pathologic myopia, central serous chorioretinopathy (CSCR), adult onset foveal pattern dystrophy
  • Concurrent disease that could require medical or surgical intervention during the study period
  • Active/suspected ocular/periocular infection or active intraocular inflammation
  • History of idiopathic or autoimmune-associated uveitis
  • Any prior or ongoing medical condition or clinically significant screening laboratory value that may present a safety risk, interfere with study compliance, interfere with consistent study follow-up, or confound data interpretation throughout the longitudinal follow-up period
  • Has experienced a cardiovascular or cerebrovascular event within 12 months of informed consent
  • Females must not be pregnant or lactating
  • Current use of medications known to be toxic to the lens, retina or optic nerve
  • Use of any investigational new drug or other experimental treatment in the last 6 months prior to Day 1, and/or receipt of any prior gene therapy or ocular device implantation

Trial locations and contacts

23 sites in 1 country.

23 sites in 1 country

United States23 sites
  • Gemini Clinical Trial Site 2

    Asheville, North Carolina, 28803

  • Gemini Clinical Trial Site 13

    Beaufort, South Carolina, 29902

  • Gemini Clinical Trial Site 11

    Campbell, California, 95008

  • Gemini Clinical Trial Site 15

    Charlotte, North Carolina, 28210

  • Gemini Clinical Trial Site 6

    Cincinnati, Ohio, 45219

  • Gemini Clinical Trial Site 3

    Dallas, Texas, 75231

  • Gemini Clinical Trial Site 9

    Encino, California, 91436

  • Gemini Clinical Trial Site 10

    Eugene, Oregon, 97401

  • Gemini Clinical Trial Site 4

    Hagerstown, Maryland, 21740

  • Gemini Clinical Trial Site 17

    Huntington Beach, California, 92647

  • Gemini Clinical Trial Site 19

    Indianapolis, Indiana, 46290

  • Gemini Clinical Trial Site 5

    Miami, Florida, 33143

  • Gemini Clinical Trial Site 12

    Pasadena, California, 91107

  • Gemini Clinical Trial Site 16

    Phoenix, Arizona, 85021

  • Gemini Clinical Trial Site 7

    Pinellas Park, Florida, 33782

  • Gemini Clinical Trial Site 1

    Reno, Nevada, 89502

  • Gemini Clinical Trial Site 22

    Royal Oak, Michigan, 48073

  • Gemini Clinical Trial Site 21

    San Antonio, Texas, 78240

  • Gemini Clinical Trial Site 14

    San Antonio, Texas, 78247

  • Gemini Clinical Trial Site 20

    Sarasota, Florida, 34239

  • Gemini Clinical Trial Site 8

    Stuart, Florida, 34994

  • Gemini Clinical Trial Site 18

    Winter Haven, Florida, 33880

  • Gemini Clinical Trial Site 23

    Worcester, Massachusetts, 01605

Other trials in United States

About this study

Official title: A Multicenter, Multiple-Dose Study in Neovascular Age-related Macular Degeneration (nAMD) to Evaluate the Safety, Tolerability, Pharmacodynamics, Immunogenicity, and Clinical Effect of Repeat Intravitreal (IVT) Injections of GEM103 as an Adjunct to Standard of Care Aflibercept Therapy

This study is designed to investigate the safety and tolerability of GEM103 IVT injection + standard of care vs. sham + standard of care.

Read the detailed description

This is a Phase 2a, multi-center, multiple dose study in subjects with Neovascular Age-related Macular Degeneration (nAMD) to investigate the safety and tolerability of GEM103 IVT injection + standard of care vs. sham + standard of care.

Subjects will undergo clinical and ophthalmic assessments for determination of inclusion in the study and who meet all eligibility criteria will be enrolled.

Being tested
GEM103, Aflibercept, Sham
Medical subject headings
Retinal Diseases, Retinal Degeneration, Macular Degeneration

What participants receive

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

  • GEM103Biological

    GEM103 500 mcg/50 mcL intravitreal injection

  • AfliberceptDrug

    Aflibercept 2 mg/50 mcL (SOC) intravitreal injection

    Sham intravitreal injection

  • ShamDrug

    Sham intravitreal injection

Study groups in NCT04684394
Study groupRoleWhat they receive
SoC + GEM103ExperimentalParticipants were administered SoC therapy defined as aflibercept (2 milligram [mg]/50 microliter [mcL]) first, followed by GEM103 (500 microgram [mcg]/50mcL) 15 minutes later. Administration occurred every other month (EOM) for a total of 6 doses during the 12-month study period.
Receives: Biological: GEM103; Drug: Aflibercept
SoC + ShamSham comparatorParticipants were administered SoC therapy defined as aflibercept (2mg/50mcL) first, followed by the Sham injection 15 minutes later. Administration occurred EOM for a total of 6 doses during the 12-month study period.
Receives: Drug: Aflibercept; Drug: Sham

What is being measured

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

  1. Number of Participants With Ocular Treatment-emergent Adverse Events (TEAEs)

    An adverse event (AE) was defined as any untoward medical occurrence or worsening of a pre-existing condition in a participant administered a pharmaceutical product during the study, whether related or not to the study medication. TEAEs were defined as AE that occurred on or after the date and time of study drug administration or those that first occurred pre-dose but worsened by increase in occurrence or severity after study drug administration. Number of participants with ocular TEAEs in study eye and fellow eye were reported.

    Measured: Baseline up to Week 48

  2. Number of Participants With Non-ocular TEAEs

    An adverse event (AE) was defined as any untoward medical occurrence or worsening of a pre-existing condition in a participant administered a pharmaceutical product during the study, whether related or not to the study medication. TEAEs were defined as AE that occurred on or after the date and time of study drug administration or those that first occurred pre-dose but worsened by increase in occurrence or severity after study drug administration. Number of participants with non-ocular TEAEs were reported.

    Measured: Baseline up to Week 48

  3. Number of Participants With Abnormal Ophthalmic Examination Findings

    Ophthalmoscopy examination was performed in each eye with findings reported for Vitreous, Optic Nerve, Macula, Retina Periphery. Lens Status and Opacification (Phakic and Pseudophakic) was also performed. Nuclear Cataract, Cortical Cataract, and Posterior Subcapsular Cataract categories was further summarized by severity grade. Ocular biomicroscopic examination was performed with findings reported for Lids/Lashes, Conjunctiva, Cornea, Anterior Chamber, and Iris/Pupil.

    Measured: Baseline up to Week 48

  4. Percentage of Participants With Greater Than or Equal to (>=)15, >=10, >=5 Letters From the Baseline in Best Corrected Visual Acuity (BCVA)

    Visual function assessments included BCVA assessment in each eye by Early Treatment Diabetic Retinopathy Study (ETDRS) letters. BCVA was measured on the ETDRS chart at a starting distance of 4 meters. The letter score ranges from 0 (worse score) to 100 (best score), and a gain in BCVA from baseline indicates an improvement in visual acuity. For each participant, an average value was calculated across the three visits, and this averaged value was used to determine if the endpoint was met. The results were summarized as the percentage of participants with increase in BCVA with greater than or equal to (>=)15, >=10, >=5 letters from the baseline per treatment arm who met the endpoint.

    Measured: Baseline up to Week 48

  5. Percentage of Participants With Greater Than or Equal to (>=)15, >=10, >=5 Letters From the Baseline in Low Luminance Visual Acuity (LLVA)

    Visual function assessments included LLVA assessment in each eye by ETDRS letters. LLVA was measured on the ETDRS chart at a starting distance of 4 meters. The letter score ranges from 0 (worse score) to 100 (best score), and a gain in LLVA from baseline indicates an improvement in visual acuity. For each participant, an average value was calculated across the three visits, and this averaged value was used to determine if the endpoint was met. The results were summarized as the percentage of participants with increase in LLVA with >=15, >=10, >=5 letters from the baseline per treatment arm who met the endpoint.

    Measured: Baseline up to Week 48

  6. Mean Change From Baseline in Minnesota Low-vision Reading (MNRead) Test at Week 48

    The MNRead acuity cards are continuous-text reading acuity cards suitable for measuring the reading acuity and reading speed of normal and low-vision participants. Formula for reading speed words per minute (wpm): reading speed is equal to 60*(10 - errors)/ (time in seconds). A negative change from baseline indicates a decrease in the reading speed; disease worsening.

    Measured: Baseline, Week 48

Secondary outcomes (3)
  1. Change From Baseline in Total Complement Factor H (CFH) Concentration in Aqueous Humor

    Observed continuous total CFH concentration level in aqueous humor (ng/mL) was analyzed in study eye only by type of biological matrix by treatment group using descriptive statistics. Change from baseline in total CFH Concentration in aqueous humor at Week 32 was reported.

    Measured: Baseline, Week 32

  2. Mean Change From Baseline in Early Treatment of Diabetic Retinopathy Study (ETDRS) Best-corrected Visual Acuity (BCVA) at Week 48

    BCVA was measured on the ETDRS chart at a starting distance of 4 meters in each eye. The BCVA letter score ranges from 0 to 100 (best score), and a gain in BCVA from baseline indicates an improvement in visual acuity. For each participant, an average BCVA value was calculated across the three visits, and this averaged value was used to determine if the endpoint was met. All items were transformed on to total score ranges from 0 to 100 (best score). A negative change indicates no improvement in the condition.

    Measured: Baseline, Week 48

  3. Mean Change From Baseline in Macular Atrophy (MA) Assessed by Fundus Autofluorescence (FAF)

    MA lesion area was measured in millimeters squared (mm^2) by FAF in each eye. The change in MA lesion area was measured by FAF and analysis of FAF images was performed by the central reading center. A positive change from baseline indicates an increase in size of MA lesion area (worsening; disease progression).

    Measured: Baseline up to Week 48

Timeline

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

  1. First posted24 Dec 2020
  2. Study start29 Dec 2020
  3. Primary completion10 Jan 2022
  4. Study completion18 Feb 2022

Why it stopped: Sponsor decision

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04684394
Sponsor's protocol ID
GEM-CL-10311
Status last verified
Mar 2022
First submitted
21 Dec 2020
Last updated
31 Oct 2022
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GEM103 and Aflibercept in people with Neovascular Age-related Macular Degeneration and Retinal Disease, run by Gemini Therapeutics, Inc. at 23 sites 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 6 inclusion and 16 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: stopped early, as of the sponsor's last update on 31 Oct 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 23 sites 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 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.

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 31 Oct 2022). 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?

Number of Participants With Ocular Treatment-emergent Adverse Events (TEAEs) (time frame: Baseline up to Week 48). 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 31 Oct 2022.

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