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Corneal UlcerPhase 3MUTT INCT00996736

Mycotic Ulcer Treatment Trial I

A Phase 3 study testing Natamycin and Voriconazole in people with Corneal Ulcer and Eye Infections, Fungal, run by University of California, San Francisco at 3 sites in 2 countries.

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 determine if natamycin or voriconazole results in better visual outcomes in fungal corneal ulcers, especially visual acuity. Read more about this study

Who is it for?
Ages 16 years and older
Conditions the study is for
Corneal Ulcer, Eye Infections, Fungal
What is being tested?
Natamycin and Voriconazole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
323 participants
Where
3 sitesin 2 countries
Study dates
Apr 2010to Jul 2012
Phase
Phase 3
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 16 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Presence of a corneal ulcer at presentation
  • Evidence of filamentous fungus on smear (KOH wet mount, Giemsa, or Gram stain)
  • Visual acuity between 6/12 (20/40, logMAR 0.3) and 6/120 (20/400, logMAR 1.3)
  • The patient must be able to verbalize a basic understanding of the study after it is explained to the patient, as determined by physician examiner. This understanding must include a commitment to return for follow-up visits.
  • Willingness to be treated as an inpatient or to be treated as an outpatient and return every 3 days +/- 1 day until re-epithelialization and every week to receive fresh medication for 3 weeks
  • Appropriate consent

Who cannot join

  • Impending perforation
  • Evidence of bacteria on Gram stain at the time of enrollment
  • Evidence of acanthamoeba by stain
  • Evidence of herpetic keratitis by history or exam
  • Corneal scar not easily distinguishable from current ulcer
  • Age less than 16 years (before 16th birthday)
Show all 14Show fewer
  • Bilateral ulcers
  • Previous penetrating keratoplasty in the affected eye
  • Pregnancy (by history or urine test) or breast feeding (by history)
  • Acuity worse than 6/60 (2/200) in the fellow eye (note that any acuity, uncorrected, corrected, pinhole, or BSCVA 6/60 or better qualifies for enrollment)
  • Acuity worse than 6/120 (20/400) or better than 6/12 (20/40) in the study eye (note that any acuity, uncorrected, corrected, pinhole, or BSCVA can be used for enrollment)
  • Known allergy to study medications (antifungal or preservative)
  • No light perception in the affected eye
  • Not willing to participate

Trial locations and contacts

3 sites in 2 countries.

3 sites in 2 countries

India2 sites
  • Aravind Eye Hospitals

    Madurai, Tamil Nadu

  • Aravind Eye Hospital

    Pondicherry, Tamil Nadu

Other trials in India

United States1 site
  • Proctor Foundation, UCSF

    San Francisco, California, 94143

Other trials in United States

About this study

Official title: Mycotic Ulcer Treatment Trial

The purpose of this study is to determine if natamycin or voriconazole results in better visual outcomes in fungal corneal ulcers, especially visual acuity.

Read the detailed description

Fungal corneal ulcers tend to have very poor outcomes with commonly used treatments. There has only been a single randomized trial of anti-fungal therapy for mycotic keratitis, and no new ocular anti-fungal medications have been approved by the FDA since the 1960s. The triazole voriconazole has recently become the treatment of choice for systemic fungal infections such as pulmonary aspergillosis. The use of topical ophthalmic preparations of voriconazole has been described in numerous case reports, however there has been no systematic attempt to determine whether it is more or less clinically effective than natamycin. Additionally, there have been many case reports of the use of oral voriconazole in the treatment of fungal corneal ulcers, however there has been no systematic attempt to determine if it improves outcomes in severe ulcers.

This study is a randomized, double-masked, placebo-controlled trial to determine if the use natamycin or voriconazole results in better outcomes for fungal corneal ulcers. 368 fungal corneal ulcers with baseline visual acuity between 6/12 (20/40, logMAR 0.3) and 6/120 (20/400, logMAR 1.3) presenting to the Aravind Eye Hospitals and the UCSF Proctor Foundation will be randomized to receive either topical natamycin or topical voriconazole. The primary outcome is best spectacle-corrected logMAR visual acuity three months after enrollment, using best spectacle-corrected enrollment visual acuity as a co-variate.

Being tested
Natamycin, Voriconazole
Keywords
Fungal Infections, Eye Disease, Fungal Keratitis, Visual Acuity
Medical subject headings
Corneal Ulcer, Eye Infections, Fungal, Mycoses, Eye Diseases

What participants receive

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

  • NatamycinDrug

    5% natamycin plus 0.02% preservative, one drop to the affected eye every one hour while awake for 1 week, then every 2 hours while awake until 3 weeks after enrollment.

  • VoriconazoleDrug

    1% voriconazole plus 0.01% preservative, 1 drop applied to the affected eye every one hour while awake for 1 week, then every 2 hours while awake until three weeks after enrollment.

Study groups in NCT00996736
Study groupRoleWhat they receive
Topical NatamycinActive comparatorNot described
Receives: Drug: Natamycin
Topical VoriconazoleExperimentalNot described
Receives: Drug: Voriconazole

What is being measured

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

  1. Best Spectacle-corrected logMAR Visual Acuity

    The primary analysis is best spectacle-corrected logMAR (logarithm of the Minimum Angle or Resolution) visual acuity, correcting for enrollment BSCVA and treatment arm in a multiple linear regression model. The pre-specified non-inferiority margin is less than 1.5 lines logMAR acuity. (Adjusted three-month visual acuity confidence bounds for the difference between the voriconazole and natamycin groups which meet or exceed 0.15 logMAR units would not permit noninferiority to be declared.) Note that this design also allows declaration of superiority (2-sided alpha of 0.05, corrected for an interim analysis).

    Measured: 3 months from enrollment

Secondary outcomes (6)
  1. Best Spectacle-corrected logMAR Visual Acuity

    Best spectacle-corrected logMAR (logarithm of the Minimum Angle of Resolution) visual acuity at 3 weeks after enrollment, adjusting for enrollment BSCVA and treatment arm in a multiple linear regression model

    Measured: 3 weeks after enrollment

  2. Hard Contact Lens-corrected Visual Acuity Measured in logMAR

    Hard contact lens-corrected visual acuity measured in logMAR (logarithm of the Minimum Angle of Resolution) 3 months after enrollment

    Measured: 3 months after enrollment

  3. Size of Infiltrate/Scar

    Size of infiltrate/scar at 3 weeks and 3 months after enrollment, using enrollment infiltrate scar/size as a covariate

    Measured: 3 weeks and 3 months after enrollment

  4. Time to Resolution of Epithelial Defect

    Time in days from enrollment to resolution of epithelial defect. For those subjects with more than 21 days to resolution, 21 days was used.

    Measured: From enrollment to the time of resolution of epithelial defect

  5. Minimum Inhibitory Concentration of Isolates

    Minimum inhibitory concentration (50th percentile) of fungal isolates to natamycin and voriconazole

    Measured: 3 months after enrollment

  6. Microbiological Cure at 6 Days

    Microbiological cure defined as no fungal growth on culture at 6 (+/-1) days from enrollment

    Measured: 7 days after enrollment

Timeline

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

  1. First posted16 Oct 2009 (estimated)
  2. Study startApr 2010
  3. Primary completionJul 2012
  4. Study completionJul 2012

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
323 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00996736
Sponsor's protocol ID
H9332-33965-02
Other IDs
U10EY018573-01A1
Acronym
MUTT I
Status last verified
Jul 2018
First submitted
14 Oct 2009
Last updated
1 Aug 2018
Data monitoring committee
Yes

Publications

  • Prajna NV, Krishnan T, Mascarenhas J, Rajaraman R, Prajna L, Srinivasan M, Raghavan A, Oldenburg CE, Ray KJ, Zegans ME, McLeod SD, Porco TC, Acharya NR, Lietman TM; Mycotic Ulcer Treatment Trial Group. The mycotic ulcer treatment trial: a randomized trial comparing natamycin vs voriconazole. JAMA Ophthalmol. 2013 Apr;131(4):422-9. doi: 10.1001/jamaophthalmol.2013.1497.

    PubMed 23710492
  • Prajna NV, Lalitha P, Krishnan T, Rajaraman R, Radnakrishnan N, Srinivasan M, Devi L, Das M, Liu Z, Zegans ME, Acharya NR, Porco TC, Lietman TM, Rose-Nussbaumer J. Patterns of Antifungal Resistance in Adult Patients With Fungal Keratitis in South India: A Post Hoc Analysis of 3 Randomized Clinical Trials. JAMA Ophthalmol. 2022 Feb 1;140(2):179-184. doi: 10.1001/jamaophthalmol.2021.5765.

    PubMed 35024776
  • Prajna NV, Krishnan T, Rajaraman R, Patel S, Shah R, Srinivasan M, Das M, Ray KJ, Oldenburg CE, McLeod SD, Zegans ME, Acharya NR, Lietman TM, Rose-Nussbaumer J; Mycotic Ulcer Treatment Trial Group. Predictors of Corneal Perforation or Need for Therapeutic Keratoplasty in Severe Fungal Keratitis: A Secondary Analysis of the Mycotic Ulcer Treatment Trial II. JAMA Ophthalmol. 2017 Sep 1;135(9):987-991. doi: 10.1001/jamaophthalmol.2017.2914.

    PubMed 28817744
  • Prajna NV, Krishnan T, Rajaraman R, Patel S, Shah R, Srinivasan M, Devi L, Das M, Ray KJ, O'Brien KS, Oldenburg CE, McLeod SD, Zegans ME, Acharya NR, Lietman TM, Rose-Nussbaumer J; Mycotic Ulcer Treatment Trial Group. Adjunctive Oral Voriconazole Treatment of Fusarium Keratitis: A Secondary Analysis From the Mycotic Ulcer Treatment Trial II. JAMA Ophthalmol. 2017 Jun 1;135(6):520-525. doi: 10.1001/jamaophthalmol.2017.0616.

    PubMed 28426856
  • Prajna NV, Krishnan T, Rajaraman R, Patel S, Srinivasan M, Das M, Ray KJ, O'Brien KS, Oldenburg CE, McLeod SD, Zegans ME, Porco TC, Acharya NR, Lietman TM, Rose-Nussbaumer J; Mycotic Ulcer Treatment Trial II Group. Effect of Oral Voriconazole on Fungal Keratitis in the Mycotic Ulcer Treatment Trial II (MUTT II): A Randomized Clinical Trial. JAMA Ophthalmol. 2016 Dec 1;134(12):1365-1372. doi: 10.1001/jamaophthalmol.2016.4096.

    PubMed 27787540
  • Prajna NV, Lalitha P, Rajaraman R, Krishnan T, Raghavan A, Srinivasan M, O'Brien KS, Zegans M, McLeod SD, Acharya NR, Keenan JD, Lietman TM, Rose-Nussbaumer J; Mycotic Ulcer Treatment Trial Group. Changing Azole Resistance: A Secondary Analysis of the MUTT I Randomized Clinical Trial. JAMA Ophthalmol. 2016 Jun 1;134(6):693-6. doi: 10.1001/jamaophthalmol.2016.0530.

    PubMed 27054515
  • Rose-Nussbaumer J, Prajna NV, Krishnan T, Mascarenhas J, Rajaraman R, Srinivasan M, Raghavan A, Oldenburg CE, O'Brien KS, Ray KJ, Porco TC, McLeod SD, Acharya NR, Keenan JD, Lietman TM; Mycotic Ulcer Treatment Trial Group. Risk factors for low vision related functioning in the Mycotic Ulcer Treatment Trial: a randomised trial comparing natamycin with voriconazole. Br J Ophthalmol. 2016 Jul;100(7):929-932. doi: 10.1136/bjophthalmol-2015-306828. Epub 2015 Nov 3.

    PubMed 26531051
  • Rose-Nussbaumer J, Prajna NV, Krishnan KT, Mascarenhas J, Rajaraman R, Srinivasan M, Raghavan A, Oldenburg CE, O'Brien KS, Ray KJ, McLeod SD, Porco TC, Lietman TM, Acharya NR, Keenan JD; Mycotic Ulcer Treatment Trial I Group. Vision-Related Quality-of-Life Outcomes in the Mycotic Ulcer Treatment Trial I: A Randomized Clinical Trial. JAMA Ophthalmol. 2015 Jun;133(6):642-6. doi: 10.1001/jamaophthalmol.2015.0319.

    PubMed 25764482
  • Sun CQ, Prajna NV, Krishnan T, Mascarenhas J, Rajaraman R, Srinivasan M, Raghavan A, O'Brien KS, Ray KJ, McLeod SD, Porco TC, Acharya NR, Lietman TM. Expert prior elicitation and Bayesian analysis of the Mycotic Ulcer Treatment Trial I. Invest Ophthalmol Vis Sci. 2013 Jun 14;54(6):4167-73. doi: 10.1167/iovs.13-11716.

    PubMed 23702779

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Natamycin and Voriconazole in people with Corneal Ulcer and Eye Infections, Fungal, run by University of California, San Francisco at 3 sites in 2 countries.

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 14 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 1 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in India, 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 11 Dec 2013). 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?

Best Spectacle-corrected logMAR Visual Acuity (time frame: 3 months from enrollment). 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 NCT00996736, which also lists 9 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 1 Aug 2018.

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