A ≥ 50% reduction in the combined score was considered a treatment success. While the design is a crossover study, the primary outcome was assessed after the first period at Month 3. Oxford punctate keratopathy is an objective measure from 0-5 (cornea only) and the NIH/NEI visual analogue scale is a subjective grading performed by the participant regarding his/her ocular dryness, redness and irritation (scored 0-3 for each symptom with 0 = none, 1 = mild, 2 = moderate and 3 = severe for a total score between 0-9). The combined score was a number between 0-14 with the higher number representing a worse outcome.

This analysis is conducted on the per-protocol population, defined as those who adhered to the protocol prior to drug unavailability, not on the intent-to-treat population due to lack of visit information beyond baseline for 3 participants. Three never started drug: one was unable to donate blood, one was ineligible at screening and one died.

Oxford punctate keratopathy is an objective measure from 0-5 (cornea only) and the NIH/NEI visual analogue scale is a subjective grading performed by the participant regarding his/her ocular dryness, redness and irritation (scored 0-3 for each symptom with 0 = none, 1 = mild, 2 = moderate and 3 = severe for a total score between 0-9). The combined score was a number between 0-14 with the higher number representing a worse outcome.

Twelve participants completed the first crossover treatment period at Month 3.

The fellow eye is the untreated eye. Oxford punctate keratopathy is an objective measure from 0-5 (cornea only) and the NIH/NEI visual analogue scale is a subjective grading performed by the participant regarding his/her ocular dryness, redness and irritation (scored 0-3 for each symptom with 0 = none, 1 = mild, 2 = moderate and 3 = severe for a total score between 0-9). The combined score was a number between 0-14 with the higher number representing a worse outcome.

Twelve participants completed the first crossover treatment period at Month 3.

Oxford punctate keratopathy is an objective measure from 0-5 (cornea only) and the NIH/NEI visual analogue scale is a subjective grading performed by the participant regarding his/her ocular dryness, redness and irritation (scored 0-3 for each symptom with 0 = none, 1 = mild, 2 = moderate and 3 = severe for a total score between 0-9). The combined score was a number between 0-14 with the higher number representing a worse outcome.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The fellow eye is the untreated eye. Oxford punctate keratopathy is an objective measure from 0-5 (cornea only) and the NIH/NEI visual analogue scale is a subjective grading performed by the participant regarding his/her ocular dryness, redness and irritation (scored 0-3 for each symptom with 0 = none, 1 = mild, 2 = moderate and 3 = severe for a total score between 0-9). The combined score was a number between 0-14 with the higher number representing a worse outcome.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The CAS score is the sum of the scores on three separate assessments: Schirmer's tear test without anesthesia, punctate keratopathy and conjunctival inflammation and scarring (scored according to Robinson et. al*). Each assessment was scored 0-3 with 0 = none, 1 = mild, 2 = moderate and 3 = severe. The higher values represent a worse outcome. The CAS score was a number between 0-9 with the higher number representing a worse outcome.

*Robinson MR, Lee SS, Rubin BI, Wayne AS, Pavletic SZ, Bishop MR, Childs R, Barrett AJ, Csaky KG. Topical Corticosteroid Therapy for Cicatricial Conjunctivitis Associated with Chronic Graft Versus Host Disease. Bone Marrow Transplant. 2004; 18:567-9.

Twelve participants completed the first crossover treatment period at Month 3.

The fellow eye is the untreated eye. The CAS score is the sum of the scores on three separate assessments: Schirmer's tear test without anesthesia, punctate keratopathy and conjunctival inflammation and scarring (scored according to Robinson et. al*). Each assessment was scored 0-3 with 0 = none, 1 = mild, 2 = moderate and 3 = severe. The higher values represent a worse outcome. The CAS score was a number between 0-9 with the higher number representing a worse outcome.

*Robinson MR, Lee SS, Rubin BI, Wayne AS, Pavletic SZ, Bishop MR, Childs R, Barrett AJ, Csaky KG. Topical Corticosteroid Therapy for Cicatricial Conjunctivitis Associated with Chronic Graft Versus Host Disease. Bone Marrow Transplant. 2004; 18:567-9.

Twelve participants completed the first crossover treatment period at Month 3.

The CAS score is the sum of the scores on three separate assessments: Schirmer's tear test without anesthesia, punctate keratopathy and conjunctival inflammation and scarring (scored according to Robinson et. al*). Each assessment was scored 0-3 with 0 = none, 1 = mild, 2 = moderate and 3 = severe. The higher values represent a worse outcome. The CAS score was a number between 0-9 with the higher number representing a worse outcome.

*Robinson MR, Lee SS, Rubin BI, Wayne AS, Pavletic SZ, Bishop MR, Childs R, Barrett AJ, Csaky KG. Topical Corticosteroid Therapy for Cicatricial Conjunctivitis Associated with Chronic Graft Versus Host Disease. Bone Marrow Transplant. 2004; 18:567-9.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The fellow eye is the untreated eye. The CAS score is the sum of the scores on three separate assessments: Schirmer's tear test without anesthesia, punctate keratopathy and conjunctival inflammation and scarring (scored according to Robinson et. al*). Each assessment was scored 0-3 with 0 = none, 1 = mild, 2 = moderate and 3 = severe. The higher values represent a worse outcome. The CAS score was a number between 0-9 with the higher number representing a worse outcome.

*Robinson MR, Lee SS, Rubin BI, Wayne AS, Pavletic SZ, Bishop MR, Childs R, Barrett AJ, Csaky KG. Topical Corticosteroid Therapy for Cicatricial Conjunctivitis Associated with Chronic Graft Versus Host Disease. Bone Marrow Transplant. 2004; 18:567-9.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

Visual acuity was measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. Acuity is measured as letters read on an ETDRS eye chart and the letters read equate to Snellen measurements. For example, if a participant reads between 84 and 88 letters, the equivalent Snellen measurement is 20/20.

Twelve participants completed the first crossover treatment period at Month 3.

The fellow eye is the untreated eye. Visual acuity was measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. Acuity is measured as letters read on an ETDRS eye chart and the letters read equate to Snellen measurements. For example, if a participant reads between 84 and 88 letters, the equivalent Snellen measurement is 20/20.

Twelve participants completed the first crossover treatment period at Month 3.

Visual acuity was measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. Acuity is measured as letters read on an ETDRS eye chart and the letters read equate to Snellen measurements. For example, if a participant reads between 84 and 88 letters, the equivalent Snellen measurement is 20/20.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The fellow eye is the untreated eye. Visual acuity was measured using the Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. Acuity is measured as letters read on an ETDRS eye chart and the letters read equate to Snellen measurements. For example, if a participant reads between 84 and 88 letters, the equivalent Snellen measurement is 20/20.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

Sodium fluorescein dye was added to the eye and the tear film was observed under the slit lamp while the participant avoided blinking until tiny dry spots develop. Three measurements were taken and averaged for a more reproducible score.

Twelve participants completed the first crossover treatment period at Month 3.

The fellow eye is the untreated eye. Sodium fluorescein dye was added to the eye and the tear film was observed under the slit lamp while the participant avoided blinking until tiny dry spots develop. Three measurements were taken and averaged for a more reproducible score.

Twelve participants completed the first crossover treatment period at Month 3.

Sodium fluorescein dye was added to the eye and the tear film was observed under the slit lamp while the participant avoided blinking until tiny dry spots develop. Three measurements were taken and averaged for a more reproducible score.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The fellow eye is the untreated eye. Sodium fluorescein dye was added to the eye and the tear film was observed under the slit lamp while the participant avoided blinking until tiny dry spots develop. Three measurements were taken and averaged for a more reproducible score.

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The tear composition test consists of the measurement of tear osmolarity using the Tearlab Osmolarity System (San Diego, California) by collecting a small 50 nanoliter (nL) tear sample which, with the use of laboratory test calculations, can derive the tear osmolarity in milliosmole per liter (mOsm/L).

Twelve participants completed the first crossover treatment period at Month 3.

The tear composition test consists of the measurement of tear osmolarity using the Tearlab Osmolarity System (San Diego, California) by collecting a small 50 nanoliter (nL) tear sample which, with the use of laboratory test calculations, can derive the tear osmolarity in milliosmole per liter (mOsm/L).

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.

The fellow eye is the untreated eye. The tear composition test consists of the measurement of tear osmolarity using the Tearlab Osmolarity System (San Diego, California) by collecting a small 50 nanoliter (nL) tear sample which, with the use of laboratory test calculations, can derive the tear osmolarity in milliosmole per liter (mOsm/L).

Twelve participants completed the first crossover treatment period at Month 3.

The fellow eye is the untreated eye. The tear composition test consists of the measurement of tear osmolarity using the Tearlab Osmolarity System (San Diego, California) by collecting a small 50 nanoliter (nL) tear sample which, with the use of laboratory test calculations, can derive the tear osmolarity in milliosmole per liter (mOsm/L).

Twelve participants completed the first crossover treatment period at Month 3. Thirteen participants completed the second crossover treatment period at Month 6.