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Ocular PainPhase 1/2NCT01776658

Pilot Study to Evaluate SYL1001 Safety and Effect in Patients With Ocular Pain

A Phase 1/2 study testing SYL1001 in people with Ocular Pain and Dry Eye Syndrome, run by Sylentis, S.A. at 3 sites in Spain.

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 aim of this pilot study is to compare the analgesic effect of SYL1001 versus placebo in patients with ocular pain associated with Dry Eye Syndrome. General and local tolerability are also evaluated. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Ocular Pain, Dry Eye Syndrome
What is being tested?
SYL1001
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
3 sitesSpain
Study dates
Nov 2012to Apr 2015
Phase
Phase 1/2
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients of both genders
  • Age ≥ 18 years old
  • Give written informed consent to participate in the study after having been informed of the study design, objectives and possible derived risks
  • Common mild to moderate dry eye symptoms. Persistent daily symptoms for more than three months:
  • OSDI scale: 13-30
  • VAS scale: 2-7
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  • Ocular tests in both eyes:
  • Corneal staining with fluorescein. Oxford scale > 0
  • Tear Breakup Time Test: (BUT) < 10 seconds
  • Schirmer test with anaesthesia < 10 mm/5min

Who cannot join

  • Pregnant or breastfeeding females or those with a positive pregnancy test.
  • Females of childbearing potential who will not use a medically acceptable contraceptive method from selection and during the whole study.
  • Current relevant disease, including respiratory disease, cardiovascular, endocrine, neurological, haematological, renal, neoplasic, hepatopathy, gastrointestinal distress, hypertension, or infectious acute processes.
  • Past history of a chronic o recurring condition that could interfere with study according to the investigator's judgement.
  • Concomitant use of other drugs with analgesic activity by any route of administration at the enrolment period.
  • Changes in any ocular and/or systemic concomitant medication one month prior to the study commencement and during the study development.
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  • Changes on the preestablished artificial tears dosage 15 days prior to the study commencement and during the study development.
  • Cyclosporine treatment initiation or changes in cyclosporine dosage or dosing regimen during the 6 months prior to enrolment.
  • Previous history of drug hypersensitivity.
  • Use of contact lenses
  • Case history of drug or alcohol abuse or dependence.
  • Relevant abnormal laboratory results as judged by the investigator
  • Previous refractive surgery
  • Participation in a clinical trial within 2 months before the enrolment visit
  • Relevant ocular pathology judged by the investigator.

Trial locations and contacts

3 sites in 1 country.

Spain3 sites
  • Fundación Jiménez Díaz

    Madrid, 28040

  • Hospital Universitario Clínico San Carlos

    Madrid, 28040

  • Instituto Oftalmológico Fernández-Vega

    Oviedo, 33012

Other trials in Spain

About this study

The aim of this pilot study is to compare the analgesic effect of SYL1001 versus placebo in patients with ocular pain associated with Dry Eye Syndrome. General and local tolerability are also evaluated.

Being tested
SYL1001, Placebo
Keywords
Ocular pain, Dry Eye Syndrome, siRNA, RNAi, TRPV1
Medical subject headings
Eye Pain, Dry Eye Syndromes

What participants receive

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

  • SYL1001Drug

    Ocular topical administration of SYL1001 for 10 consecutive days

  • PlaceboDrug

    Ocular topical administration of placebo for 10 consecutive days

Study groups in NCT01776658
Study groupRoleWhat they receive
SYL1001 eye drops dose AExperimentalOcular topical administration of SYL1001 eye drops dose A
Receives: Drug: SYL1001
PlaceboPlacebo comparatorOcular topical administration of placebo eye drops
Receives: Drug: Placebo

What is being measured

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

  1. Changes from Baseline in the Ocular Pain Scores on the Visual Analog Scale (VAS) and in the Ocular Discomfort Scores on the Ocular Surface Disease Index (OSDI) as a Measure of SYL1001 Analgesic Effect versus Placebo.

    Measured: 10 days + (4-10 days)

  2. Simple Corneal and Conjunctival Evaluation as a Measure of Safety and Tolerability using Ophthalmic Dyes and a Slit Lamp

    Measured: 10 days + (4-10 days)

Secondary outcomes (2)
  1. Assessment of Adverse Events Appearance as a measure of SYL1001 tolerability

    Measured: 10 days + (96-240 hours)

  2. Evaluation of Vital Signs, Blood, Urine and Ocular Parameters Alterations (IOP, Visual Acuity, Anterior Segment Exploration) Possibly Related to the Investigational Product

    Measured: 10 days + (96-240 hours)

Timeline

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

  1. First posted28 Jan 2013 (estimated)
  2. Study startNov 2012
  3. Primary completionApr 2015

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01776658
Sponsor's protocol ID
SYL1001_II
Status last verified
May 2015
First submitted
14 Nov 2012
Last updated
25 May 2015
Results posted
No

Publications

  • Benitez-Del-Castillo JM, Moreno-Montanes J, Jimenez-Alfaro I, Munoz-Negrete FJ, Turman K, Palumaa K, Sadaba B, Gonzalez MV, Ruz V, Vargas B, Paneda C, Martinez T, Bleau AM, Jimenez AI. Safety and Efficacy Clinical Trials for SYL1001, a Novel Short Interfering RNA for the Treatment of Dry Eye Disease. Invest Ophthalmol Vis Sci. 2016 Nov 1;57(14):6447-6454. doi: 10.1167/iovs.16-20303.

    PubMed 27893109

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing SYL1001 in people with Ocular Pain and Dry Eye Syndrome, run by Sylentis, S.A. at 3 sites in Spain.

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 10 inclusion and 15 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 25 May 2015. 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 Spain. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 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?

Changes from Baseline in the Ocular Pain Scores on the Visual Analog Scale (VAS) and in the Ocular Discomfort Scores on the Ocular Surface Disease Index (OSDI) as a Measure of SYL1001 Analgesic Effect versus Placebo. (time frame: 10 days + (4-10 days)). The study lists 2 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 NCT01776658, 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 25 May 2015.

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