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Age-Related Macular DegenerationNCT01833325

Proton Radiation Therapy for Macular Degeneration

A study testing Proton radiation in people with Age-Related Macular Degeneration, run by University of Florida at 1 site in United States.

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

This is a pilot study to determine if proton radiation therapy can provide effective and safe treatment for subfoveal neovascularization membrane (SNVM). The study will include adult patients over the age of 50 with macular degeneration, who have subfoveal neovascularization membrane (SNVM) and have had prior… Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Age-Related Macular Degeneration
What is being tested?
Proton radiation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
9 participants
Where
1 siteUnited States
Study dates
May 2013to Feb 2018
Phase
Interventional
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

  • Patients with subfoveal neovascular membranes identified on fluorescein angiography.
  • Visual acuity (best corrected vision) 20/200 or worse in affected eye.
  • Patient must be 50 years of age or older at time of consent.
  • Patients must have had prior treatment for macular degeneration with Avastin (bevacizumab) or Lucentis (ranibizumab).
  • Women must be post menopausal or have had a hysterectomy.

Who cannot join

  • History of diabetes.

Trial locations and contacts

1 site in 1 country.

United States1 site

  • University of Florida Proton Therapy Institute

    Jacksonville, Florida, 32206

Other trials in United States

About this study

Official title: A Pilot Study to Assess the Safety of Proton Therapy for Subfoveal Neovascularization Associated With Age-Related Macular Degeneration

This is a pilot study to determine if proton radiation therapy can provide effective and safe treatment for subfoveal neovascularization membrane (SNVM). The study will include adult patients over the age of 50 with macular degeneration, who have subfoveal neovascularization membrane (SNVM) and have had prior treatment with Avastin or Lucentis. Additional purposes of this study are to see if the growth of neovascular membranes can be stopped and overall vision improved with the use of protons and assess the side effects associated with this treatment.

Read the detailed description

As part of this study, participants will have had a standard of care comprehensive eye exam by an Ophthalmologist to include visual acuity, fundus photography, fluorescein angiography and optical coherence tomography prior to treatment.

Participants will receive radiation using protons for 2 consecutive days. Each treatment will take 30 minutes. They will receive a total dose of 24 cobalt gray equivalent (CGE) in 2 treatments. A total of 10 participants will be enrolled on this study.

A comprehensive eye exam by an Ophthalmologist will be performed 30 days after radiation treatment with protons. Additionally, a physical examination per a Radiation Oncologist including a toxicity evaluation and comprehensive eye exam by an Ophthalmologist will be performed every 3 months for 1 year following radiation treatment.

Being tested
Proton radiation
Keywords
Age-Related Macular Degeneration, Macular Degeneration, Proton radiation, Choroidal Neovascular Membranes
Medical subject headings
Macular Degeneration

What participants receive

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

  • Proton radiationRadiation

    Proton radiation given to a total dose of 24 cobalt gray equivalent (CGE) in 2 treatments

Study groups in NCT01833325
Study groupRoleWhat they receive
Proton radiationExperimentalProton radiation given to a total dose of 24 cobalt gray equivalent (CGE) in 2 treatments
Receives: Radiation: Proton radiation

What is being measured

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

  1. Number of participants with acute and late morbidity of the eye as a measure of safety

    Measured: 1 year after completion of radiation treatment

  2. Number of participants with cessation of growth of neovascular membranes.

    Measured: 1 year after completion of radiation treatment

  3. Visual acuity per comprehensive eye exam

    Measured: 1 year after completion of radiation treatment

  4. Frequency of intravitreal injections following radiation treatment

    Measured: 1 year after completion of radiation treatment

Timeline

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

  1. First posted16 Apr 2013 (estimated)
  2. Study startMay 2013
  3. Primary completionFeb 2018
  4. Study completionFeb 2018

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01833325
Sponsor's protocol ID
UFPTI 1206-EY01
Status last verified
Feb 2018
First submitted
27 Mar 2013
Last updated
23 Feb 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Macular Degeneration Foundation Adult Macular Degeneration. Available at: http://www.eyesight.org/Macular_Degeneration/Adult_MD/adult_md.html. Accessed March 8, 2012.

  • Argon laser photocoagulation for senile macular degeneration. Results of a randomized clinical trial. Arch Ophthalmol. 1982 Jun;100(6):912-8. doi: 10.1001/archopht.1982.01030030920003.

    PubMed 7046707

  • Krypton laser photocoagulation for neovascular lesions of age-related macular degeneration. Results of a randomized clinical trial. Macular Photocoagulation Study Group. Arch Ophthalmol. 1990 Jun;108(6):816-24. doi: 10.1001/archopht.1990.01070080058036.

    PubMed 1693496

  • Bressler NM; Treatment of Age-Related Macular Degeneration with Photodynamic Therapy (TAP) Study Group. Photodynamic therapy of subfoveal choroidal neovascularization in age-related macular degeneration with verteporfin: two-year results of 2 randomized clinical trials-tap report 2. Arch Ophthalmol. 2001 Feb;119(2):198-207.

    PubMed 11176980

  • Laser photocoagulation of subfoveal neovascular lesions in age-related macular degeneration. Results of a randomized clinical trial. Macular Photocoagulation Study Group. Arch Ophthalmol. 1991 Sep;109(9):1220-31. doi: 10.1001/archopht.1991.01080090044025.

    PubMed 1718250

  • Chakravarthy U, Gardiner TA, Archer DB, Maguire CJ. A light microscopic and autoradiographic study of non-irradiated and irradiated ocular wounds. Curr Eye Res. 1989 Apr;8(4):337-48. doi: 10.3109/02713688908996381.

    PubMed 2721224

  • Plowman PN, Harnett AN. Radiotherapy in benign orbital disease. I: Complicated ocular angiomas. Br J Ophthalmol. 1988 Apr;72(4):286-8. doi: 10.1136/bjo.72.4.286.

    PubMed 3378026

  • Macfaul PA, Bedford MA. Ocular complications after therapeutic irradiation. Br J Ophthalmol. 1970 Apr;54(4):237-47. doi: 10.1136/bjo.54.4.237. No abstract available.

    PubMed 5310660

  • Guyer DR, Mukai S, Egan KM, Seddon JM, Walsh SM, Gragoudas ES. Radiation maculopathy after proton beam irradiation for choroidal melanoma. Ophthalmology. 1992 Aug;99(8):1278-85. doi: 10.1016/s0161-6420(92)31832-9.

    PubMed 1325044

  • Chakravarthy U, Houston RF, Archer DB. Treatment of age-related subfoveal neovascular membranes by teletherapy: a pilot study. Br J Ophthalmol. 1993 May;77(5):265-73. doi: 10.1136/bjo.77.5.265.

    PubMed 8318462

  • Yonemoto LT, Slater JD, Blacharski P, Archambeau JO, Loredo LN, Oeinck SC, Teichman S, Moyers M, Slater JM. Dose Response in the Treatment of Subfoveal Choroidal Neovascularization in Age-Related Macular Degeneration: Results of a Phase I/II Dose-Escalation Study Using Proton Radiotherapy. Journal of Radiosurgery. 2000;3(1):47-54. DOI: 10.1023/A:1009525220716

  • Zambarakji HJ, Lane AM, Ezra E, Gauthier D, Goitein M, Adams JA, Munzenrider JE, Miller JW, Gragoudas ES. Proton beam irradiation for neovascular age-related macular degeneration. Ophthalmology. 2006 Nov;113(11):2012-9. doi: 10.1016/j.ophtha.2006.05.036. Epub 2006 Aug 28.

    PubMed 16935343

  • Brown DM, Kaiser PK, Michels M, Soubrane G, Heier JS, Kim RY, Sy JP, Schneider S; ANCHOR Study Group. Ranibizumab versus verteporfin for neovascular age-related macular degeneration. N Engl J Med. 2006 Oct 5;355(14):1432-44. doi: 10.1056/NEJMoa062655.

    PubMed 17021319

  • Sivagnanavel V, Evans JR, Ockrim Z, Chong V. Radiotherapy for neovascular age-related macular degeneration. Cochrane Database Syst Rev. 2004 Oct 18;(4):CD004004. doi: 10.1002/14651858.CD004004.pub2.

    PubMed 15495075

  • Park SS, Daftari I, Phillips T, Morse LS. Three-year follow-up of a pilot study of ranibizumab combined with proton beam irradiation as treatment for exudative age-related macular degeneration. Retina. 2012 May;32(5):956-66. doi: 10.1097/IAE.0b013e31822a8d6a.

    PubMed 22183743

Questions about this trial

What is this clinical trial studying?

A study testing Proton radiation in people with Age-Related Macular Degeneration, run by University of Florida at 1 site 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 5 inclusion and 1 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 23 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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 acute and late morbidity of the eye as a measure of safety (time frame: 1 year after completion of radiation treatment). 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?

On the ClinicalTrials.gov record for NCT01833325, which also lists 16 linked publications.

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 Feb 2018.

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