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Dry Age-related Macular DegenerationPhase 2NCT04643886

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

A Phase 2 study testing GEM103 in people with Dry Age-related Macular Degeneration and Geographic Atrophy, run by Gemini Therapeutics, Inc. at 29 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, PK/PD, biomarker and early clinical effects of repeat GEM103 IVT injections. Read more about this study

Who is it for?
Ages 50 years and older
What is being tested?
GEM103
Could I receive a placebo?
No, everyone receives an active treatment
How many people
62 participants
Where
29 sitesUnited States
Study dates
30 Jul 2020to 21 Mar 2022
Phase
Phase 2
Are there results?
None posted in the registry

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.
  • Must have one of the following genetic profiles:
  • Genetic Profile A.
  • Genetic Profile B.
  • BCVA in the study eye of 24 to 83 letters using ETDRS Chart Visual Acuity (VA) Scale (approximately equivalent to Snellen VA of 20/25 to 20/320).
  • Confirmed diagnosis of GA in the study eye where total size of all GA lesions in the study eye must be within 0.5 to 15.01- and 7- disc areas.
  • Sufficiently clear ocular media and able to cooperate with ophthalmic visual function testing and anatomic assessment in the study eye.
  • Understands the full nature and purpose of the study and provides informed consent prior to initiation of any study procedure; all subjects with a reproductive potential must agree to use effective contraceptive methods through the end of study (EOS) Visit.

Who cannot join

  • Presence of the following ocular conditions - in the study eye:
  • Any history of exudative Age-related Macular Degeneration or choroidal neovascularization.
  • Any active ocular disease or condition that could confound the assessment of the macula or be a contraindication to IVT injection.
  • Any intraocular surgery, with the exception of stable intraocular lens replacement surgery more than 3 months prior to consent.
  • Aphakia or complete absence of the posterior capsule.
  • History of laser therapy to the macula or fundus or extensive laser to the retina.
Show all 18Show fewer
  • Prior corneal transplant.
  • Presence of any of the following ocular conditions - in either eye:
  • History of herpetic infection.
  • Concurrent disease that could require medical or surgical intervention during the study period.
  • Active uveitis and/or vitritis (grade: trace or above).
  • History of idiopathic or autoimmune-associated uveitis.
  • Active blepharitis, conjunctivitis, keratitis, episcleritis, scleritis, or endophthalmitis.
  • Any ophthalmologic condition that reduces the clarity of the media and that, in the opinion of the Investigator, interferes with ophthalmologic examination.
  • In the opinion of the Investigator, the subject has any prior or ongoing medical condition (e.g., ocular other than dry AMD, systemic, psychiatric) or clinically significant screening laboratory value that may present a safety risk, interfere with study compliance or study follow-up, or confound data interpretation throughout the follow-up period.
  • Female subjects must not be pregnant or lactating, nor plan to become pregnant during the study.
  • 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, and/or receipt of any prior gene therapy (e.g., AAV) or ocular device implantation (other than PCIOL placement following cataract surgery)

Trial locations and contacts

29 sites in 1 country.

29 sites in 1 country

United States29 sites
  • Gemini Clinical Trial Site

    Abilene, Texas, 79606

  • Gemini Clinical Trial Site

    Asheville, North Carolina, 28803

  • Gemini Clinical Trial Site

    Augusta, Georgia, 30909

  • Gemini Clinical Trial Site

    Bakersfield, California, 93309

  • Gemini Clinical Trial Site

    Beverly Hills, California, 90211

  • Gemini Clinical Trial Site

    Bloomfield, New Jersey, 07003

  • Gemini Clinical Trial Site

    Charlotte, North Carolina, 28210

  • Gemini Clinical Trial Site

    Chesterfield, Missouri, 63017

  • Gemini Clinical Trial Site

    Dallas, Texas, 75231

  • Gemini Clinical Trial Site

    Eugene, Oregon, 97401

  • Gemini Clinical Trial Site

    Golden, Colorado, 80401

  • Gemini Clinical Trial Site

    Indianapolis, Indiana, 46290

  • Gemini Clinical Trial Site

    Marietta, Georgia, 30060

  • Gemini Clinical Trial Site

    New London, Connecticut, 06320

  • Gemini Clinical Trial Site

    Oak Park, Illinois, 60304

  • Gemini Clinical Trial Site

    Oxnard, California, 93036

  • Gemini Clinical Trial Site

    Palm Beach Gardens, Florida, 33410

  • Gemini Clinical Trial Site

    Phoenix, Arizona, 85020

  • Gemini Clinical Trial Site

    Poway, California, 92064

  • Gemini Clinical Trial Site

    Rapid City, South Dakota, 57701

  • Gemini Clinical Trial Site

    Reno, Nevada, 89502

  • Gemini Clinical Trial Site

    Santa Barbara, California, 93103

  • Gemini Clinical Trial Site

    Santa Maria, California, 93454

  • Gemini Clinical Trial Site

    St Louis, Missouri, 63144

  • Gemini Clinical Trial Site

    St. Petersburg, Florida, 33711

  • Gemini Clinical Trial Site

    Tallahassee, Florida, 32308

  • Gemini Clinical Trial Site

    The Woodlands, Texas, 77384

  • Gemini Clinical Trial Site

    Virginia Beach, Virginia, 23454

  • Gemini Clinical Trial Site

    Winter Haven, Florida, 33880

Other trials in United States

About this study

Official title: A Multicenter, Open-label, Multiple Dose Study in Patients With Geographic Atrophy Secondary to Dry Age-related Macular Degeneration to Evaluate the Safety, Tolerability, Pharmacodynamics, and Immunogenicity of Repeat Intravitreal Injections of GEM103

This study is designed to investigate the safety, PK/PD, biomarker and early clinical effects of repeat GEM103 IVT injections.

Read the detailed description

This is a Phase 2a, multi-center, open-label, multiple dose study in subjects with geographic atrophy (GA) secondary to dry Age-related Macular Degeneration (dry AMD) to investigate the safety, PK/PD, biomarker and early clinical effect of GEM103 repeat IVT injections.

Subjects will undergo clinical and ophthalmic assessments for determination of inclusion in the study. Subjects who participated in the Phase 1 Study (GEM-CL-10301) as well as treatment naïve subjects that did not participate in the GEM-CL-10301 Study and who meet all eligibility criteria will be enrolled.

Being tested
GEM103
Medical subject headings
Geographic Atrophy, Macular Degeneration, Retinal Diseases, Retinal Degeneration

What participants receive

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

  • GEM103Drug

    Biological

Study groups in NCT04643886
Study groupRoleWhat they receive
Cohort with Genetic Profile AExperimentalSubjects will have Genetic Profile A. Intervention: Biological: GEM103.
Receives: Drug: GEM103
Cohort with Genetic Profile BExperimentalSubjects will have Genetic Profile B. Intervention: Biological: GEM103
Receives: Drug: GEM103

What is being measured

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

  1. Safety of intravitreal (IVT) injections of GEM103, as measured by number of subjects with ocular adverse events.

    Measured: 18 months

Secondary outcomes (2)
  1. To describe the clinical effect of GEM103 IVT injection, as the change from baseline in best corrected visual acuity (BCVA) scores as assessed by ETDRS scale.

    Measured: 6 months

  2. To evaluate the total CFH levels in aqueous humor after GEM103 IVT injection, whenever possible.

    Measured: 6 months

Timeline

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

  1. First posted25 Nov 2020
  2. Study start30 Jul 2020
  3. Primary completion18 Feb 2022
  4. Study completion21 Mar 2022

Why it stopped: no further benefit

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
None (open label)
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04643886
Sponsor's protocol ID
GEM-CL-10302
Other IDs
REGATTA
Status last verified
Sep 2022
First submitted
16 Nov 2020
Last updated
23 Sep 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Tzoumas N, Riding G, Williams MA, Steel DH. Complement inhibitors for age-related macular degeneration. Cochrane Database Syst Rev. 2023 Jun 14;6(6):CD009300. doi: 10.1002/14651858.CD009300.pub3.

    PubMed 37314061

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GEM103 in people with Dry Age-related Macular Degeneration and Geographic Atrophy, run by Gemini Therapeutics, Inc. at 29 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 8 inclusion and 18 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 23 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 29 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. 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?

The study was stopped early (reason given: no further benefit). Results are not available in the source record.

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?

Safety of intravitreal (IVT) injections of GEM103, as measured by number of subjects with ocular adverse events. (time frame: 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04643886, which also lists 1 linked publication.

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 23 Sep 2022.

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