The main purpose of this study is to establish whether RP101 can reduce symptoms of dry eye syndrome in post-menopausal women.
Redwood Pharma is developing the novel ophthalmic product RP101 containing the known active substance 17β-oestradiol-3-phosphate and based upon the drug delivery platform IntelliGel which controls the active substance release. The novel formulation is planned to meet the still unmet medical need of an efficacious treatment against chronic dry eye in postmenopausal women. The efficacy of the novel formulation RP101 will be investigated for the first time in the present multicentre, randomised, double-masked, parallel-group, placebo-controlled Phase II study in women post-menopausal for at least 3 years presenting with symptoms specific for dry eye syndrome of moderate to severe intensity. The planned study will be conducted in Austria, Germany and Hungary. The primary objective of the study is to establish the effective dose/dose regimen of RP101 in these patients applying RP101 ophthalmic sterile solution or matching placebo (vehicle) once (q.d.) or twice a day (b.i.d.) for 3 months. One hundred (100) patients will be enrolled in this study. The subjects will be randomly assigned (1:1:1:1) to a treatment group and will receive one of the treatments for 90 consecutive days. Evaluation of the clinical efficacy during and at the end of the treatment will be done on the basis of the Schirmer's test type II (with anaesthesia). The secondary objectives of the study are: * to evaluate the safety and tolerability of the treatment * to evaluate the pharmacokinetics (PK) of serum 17β-oestradiol after the 1st and the last dose (only PK substudy).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
104
17β-oestradiol-3-phosphate ophthalmic sterile solution
Medical University of Vienna - Department of Clinical Pharmacology
Vienna, Austria
Universitätsmedizin Greifswald, Klinik und Poliklinik für Augenheilkunde
Greifswald, Germany
Universitätsmedizin Mainz Augenklinik und Poliklinik Klinisches
Mainz, Germany
Schirmer's test type II (with anaesthesia)
Schirmer's test uses sterile strips inserted into the eye to measure the basal aqueous tear secretion.
Time frame: From Screening up to 90 days
Visual analogue scale (VAS) for ocular tolerability (foreign body sensation, burning/stinging, itching, pain, sticky feeling, blurred vision, redness, tearing, eyelid swelling and photophobia)
It will be assigned by the patients using a 100 mm VAS.
Time frame: From Screening up to 90 days
Symptom assessment in Dry Eye (SANDE)
The patient symptoms of ocular dryness and/or irritation will be quantified on a Visual Analogue Scale (VAS) 0-100 mm based on two questions that inquire about both severity and frequency of symptoms. The patients will evaluate their symptoms on the VAS scale giving the value they are feeling from none (0 mm) to an extreme value (100 mm).
Time frame: From Screening up to 90 days
Visual acuity assessment using an Early Treatment Diabetic Retinopathy Study [ETDRS] chart
Best correction will be determined by careful refraction using a retroilluminated ETDRS 4 meter distance acuity chart. The correct number of letters read by the patient is recorded and evaluated.
Time frame: From Screening up to 90 days
Slit lamp examination (SLE)
The SLE will be performed before the instillation of any dilating or anaesthetic eye drops or the fluorescein agent.
Time frame: From Screening up to 90 days
TFBUT
Tear film break up time (TFBUT) will be measured by determining the time to tear break-up after instillation of sodium fluorescein solution into the inferior conjunctival culde-sac of each eye.
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Klinikum rechts der Isar der Technischen Universität München, Anstalt des öffentlichen Rechts Klinik und Poliklinik für Augenheilkunde
München, Germany
Óbudai Egészség Centrum
Budapest, Hungary
Swan Med Hungary Kft.
Létavértes, Hungary
MacroKlinika
Miskolc, Hungary
Mentaház Magánorvosi Központ
Székesfehérvár, Hungary
Time frame: From Screening up to 90 days
Fundus ophthalmoscopy
The fundus examination will include ophthalmoscopic assessments of vitreous, macula, retina and optic nerve head for both eyes.
Time frame: From Screening up to 90 days
Corneal fluorescein staining
The corneal fluorescein staining evaluates cornea and conjunctiva epithelium damage.
Time frame: From Screening up to 90 days
Treatment-emergent Adverse Event (TEAEs)
All adverse events (AEs) derived by spontaneous, unsolicited reports of the subjects, by observation and by routine open questioning will be collected and reported.
Time frame: From Screening up to 104 days
17-β-oestradiol serum concentrations
Using a fully validated analytical method.
Time frame: Day 1 and Day 90