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The Effect of Intravitreal Ranibizumab on Visual Acuity and Hard Exudate Resolution in the Treatment of Diabetic Macular Edema With Center Involved Edema and Lipid Exudates

6. juli 2021 oppdatert av: Julie Gasperini, M.D., South Coast Retina Center; Carson, McBeath, Boswell, Inc.

The Effect of Intravitreal Ranibizumab on Visual Acuity and Hard Exudate Resolution in the Treatment of Diabetic Macular Edema With Foveal Involving Edema and Lipid Exudates

This is an open-label, Phase I/II study of intravitreally administered 0.3mg ranibizumab in subjects with diabetic macular edema and lipid exudates in the central subfield.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This is an open-label, Phase I/II study of intravitreally administered 0.3mg ranibizumab in subjects with diabetic macular edema and lipid exudates in the central subfield.

Consented, enrolled subjects will receive multiple open-label intravitreal injections on 0.3mg ranibizumab administered every 30 days for 12 months per the treatment algorithm.

The patients will be randomized to 1 of 2 treatment groups. Group 1: Treatment algorithm based on the Diabetic Retinopathy Clinical Research (DRCR) protocol I 4:2:7 strategy based on the presence of macular edema.

Group 2: Continue treatment until not only the macular edema is resolved but also until the lipid exudate is resolved.

Sample size: 30 eyes Follow-up Schedule: Every 4 weeks throughout the study.

Studietype

Intervensjonell

Registrering (Faktiske)

25

Fase

  • Fase 2
  • Fase 1

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • California
      • Huntington Beach, California, Forente stater, 92647
        • South Coast Retina Center; Carson, McBeath, Boswell, Inc
      • Long Beach, California, Forente stater, 90505
        • South Coast Retina Center; Carson, McBeath, and Boswell, Inc
      • Santa Monica, California, Forente stater, 90404
        • Retina Partners
      • Torrance, California, Forente stater, 90505
        • South Coast Retina Center; Carson, McBeath, Boswell, Inc

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Subjects will be eligible if the following criteria are met:

Inclusion Criteria

  • Ability to provide written informed consent and comply with study assessments for the full duration of the study
  • Age ≥ 18 years
  • Type 1 or Type 2 Diabetes mellitus
  • Best corrected ETDRS visual acuity (20/32-20/320) or letter score 78 to 24
  • Diabetic macular edema on clinical examination involving the center of the macula assessed to be the main cause of visual loss
  • Retinal thickness measured on spectral domain optical coherence tomography (OCT). Zeiss Cirrus: ≥290μm in women and ≥305 μm in men in the central subfield. Heidelberg Spectralis: ≥305μm in women and ≥320 μm in men in the central subfield
  • Lipid exudates involving the central subfield on spectral domain OCT.

Exclusion Criteria

Subjects who meet any of the following criteria will be excluded from this study:

  • Treatment for diabetic macular edema within the prior 4 months.
  • Panretinal photocoagulation within the prior 4 months or anticipated need for panretinal photocoagulation within the next 6 months
  • major ocular surgery within the prior 4 months
  • myocardial infarction, other cardiac event requiring hospitalization, cerebrovascular accident, transient ischemic attack, or treatment for acute congestive heart failure occurred within 4 months before randomization
  • Pregnancy (positive pregnancy test) or lactation
  • Premenopausal women not using adequate contraception. The following are considered effective means of contraception: surgical sterilization or use of oral contraceptives, barrier contraception with either a condom or diaphragm in conjunction with spermicidal gel, an intrauterine device (IUD), or contraceptive hormone implant or patch.
  • Any other condition that the investigator believes would pose a significant hazard to the subject if the investigational therapy were initiated
  • Participation in another simultaneous medical investigation or trial

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Diabetic macular edema treatment group (Group 1)
Treatment using intravitreal ranibizumab 0.3mg based on the DRCR protocol I 4:2:7 strategy based on the presence of macular edema.
Legemiddel: ranibizumab 0.3mg
intravitreally administered
Andre navn:
  • Lucentis
Aktiv komparator: Diabetic macular edema and lipid treatment group (Group 2)
Continued treatment with intravitreal ranibizumab 0.3mg until, not only the macular edema is resolved, but also until the lipid exudate is resolved.
Legemiddel: ranibizumab 0.3mg
intravitreally administered
Andre navn:
  • Lucentis

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Best Corrected Visual Acuity as Measured by ETDRS at 6 and 12 Months
Tidsramme: 6-12 months
Compare Group 1 and Group 2 for best correct visual acuity (BCVA), as assessed by the number of letters read correctly on the ETDRS eye chart at a starting test distance of 4 meters.
6-12 months

Sekundære resultatmål

Resultatmål
Tidsramme
Percentage of Eyes With Improvement of Lipid Deposits in the Central Subfield as Measured on OCT and Fundus Photography
Tidsramme: 12 months
12 months
Percentage of Eyes With Complete Resolution of Lipid Deposits in the Central Subfield as Measured on OCT and Fundus Photography
Tidsramme: 12 months
12 months
Number of Eyes With Complete Resolution in the Central Subfield as Measured on OCT and Fundus Photography
Tidsramme: 12 months
12 months
Percentage of Eyes With Improvement in Lipid Deposits Throughout the Macular Grid as Measured by OCT and Fundus Photography
Tidsramme: 12 months
12 months
Percentage of Patients With Complete Resolution of Lipid Deposits Throughout the Macular Grid as Measured on OCT and Fundus Photography
Tidsramme: 12 months
12 months
Number of Eyes With Complete Resolution of Lipid Deposits Throughout the Macular Grid as Measured by OCT and Fundus Photography
Tidsramme: 12 months
12 months
Incidence and Severity of Ocular Adverse Events as a Measure of Safety and Tolerability
Tidsramme: 12 months
12 months
Incidence and Severity of Other Adverse Events as a Measure of Safety and Tolerability
Tidsramme: 12 months
12 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

South Coast Retina Center; Carson, McBeath, Boswell, Inc.

Samarbeidspartnere

Genentech, Inc.
Doheny Image Reading Center
Retina Partners

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. august 2015

Primær fullføring (Faktiske)

1. mai 2018

Studiet fullført (Faktiske)

1. mai 2018

Datoer for studieregistrering

Først innsendt

5. mars 2015

Først innsendt som oppfylte QC-kriteriene

14. mai 2015

Først lagt ut (Anslag)

19. mai 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juli 2021

Siste oppdatering sendt inn som oppfylte QC-kriteriene

6. juli 2021

Sist bekreftet

1. juli 2021

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • ML259577

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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Forhold

Sjeldne sykdommer

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