Topical Application Of Tacrolimus Ointment Research Articles

Corneal Toxicity of Topical Tacrolimus Ointment in Mice with Corneal Epithelial Injury.

Purpose: To investigate the effect of tacrolimus ointment on corneal epithelium. Methods: Eight-week-old male BALB/c mice were divided into 3 groups. In group 1, no injury was made. In group 2, the central 2-mm corneal epithelium was scraped off. In group 3, the whole corneal and limbal epithelium was removed after absolute ethanol application. In each group, the corneas were observed and treated daily with 0.03% or 0.1% tacrolimus ointment (Protopic®). The viability of cultivated human corneal epithelial cells was also examined after 24-h incubation with various concentrations of tacrolimus. Results: Tacrolimus ointment significantly delayed the epithelial healing in corneas with epithelial injuries (groups 2 and 3) in dose- and frequency-dependent manners, whereas it did not have any effects on uninjured corneas (group 1). The proportion of terminal deoxynucleotidyl transferase-mediated nick end labeling-positive cells and mRNA levels of inflammatory cytokines were higher in tacrolimus-treated corneas, compared with controls. Tacrolimus did not directly reduce the viability of corneal epithelial cells in culture. Conclusions: Topical application of tacrolimus ointment onto the ocular surface induced toxicity in the cornea with epithelial defects through the impairment of epithelial healing and induction of apoptosis.

Olopatadine hydrochloride suppresses hot flashes induced by topical treatment with tacrolimus ointment in rats

Tacrolimus ointment is prescribed for patients with atopic dermatitis, although it is known to cause transient burning sensations and hot flashes in the applied skin. The aim of this study was to evaluate the effects of olopatadine hydrochloride (olopatadine), an antiallergic agent with a histamine H1 receptor (H1R) antagonistic activity, on the incidence of hot flashes induced by topical treatment with tacrolimus ointment in rats. Consequently, the skin temperature was increased by the topical application of tacrolimus ointment in rats, and the rise in skin temperature was inhibited by pretreatment with olopatadine in a dose-dependent manner. Inhibitory effect of olopatadine on tacrolimus-induced skin temperature elevation was significantly more potent than that of cetirizine hydrochloride, other antiallergic agent with H1R antagonistic activity, at doses in which both agents exhibit comparable H1R antagonistic activity in rats. These results suggest that H1R antagonistic activity-independent mechanism contribute to the inhibitory effect of olopatadine on tacrolimus-induced skin temperature elevation. Olopatadine also significantly inhibited increases in vascular permeability and nerve growth factor production in the skin induced by topical tacrolimus treatment. Thus, the onset of hot flashes in rats is quantitatively determined by measuring the skin temperature and olopatadine attenuates hot flashes induced by topical tacrolimus ointment in rats, suggesting that the combination application with olopatadine and tacrolimus ointment is useful for improving medication adherence with tacrolimus ointment treatment in patients with atopic dermatitis.

Balanitis Xerotica Obliterans, the Topical Application of Tacrolimus Ointment, and the Result: An Institutional Study

Balanitis Xerotica Obliterans, the Topical Application of Tacrolimus Ointment, and the Result: An Institutional Study

Skin and systemic pharmacokinetics of tacrolimus following topical application of tacrolimus ointment in adults with moderate to severe atopic dermatitis

Skin and systemic pharmacokinetics of tacrolimus following topical application of tacrolimus ointment in adults with moderate to severe atopic dermatitis

Tacrolimus hydrate ointment inhibits skin plasma extravasation in rats induced by topical m-xylene but not capsaicin

Tacrolimus ointment is used to treat various chronic inflammatory skin diseases. However, the effect of this ointment on acute neurogenic inflammation in the skin remains to be fully elucidated. Topical capsaicin and m-xylene produce tachykinin release from sensory nerves in the skin, resulting in skin plasma leakage. We investigated the effect of tacrolimus ointment (0.1%) on skin microvascular leakage induced by topical capsaicin (10 mM) and m-xylene (neat), and intracutaneous compound 48/80 (c48/80) (10 μg/ml, 50 μl/site) in two groups of rats pretreated with excessive capsaicin or its vehicle. The amount of leaked Evans blue dye reflected skin plasma leakage. Capsaicin, m-xylene or c48/80 was applied to the shaved abdomens of rats 8 h after topical application of tacrolimus ointment or its base. Desensitization with capsaicin reduced the skin response to capsaicin and m-xylene by 100% and 65%, respectively, but not to c48/80. Tacrolimus ointment significantly inhibited the skin response induced by m-xylene and c48/80, regardless of pretreatment with capsaicin. However, topical tacrolimus did not influence the skin response induced by capsaicin. We also evaluated whether topical capsaicin and m-xylene, and intracutaneous c48/80 cause mast cell degranulation in skin treated with tacrolimus. Mast cell degranulation was microscopically assessed. Topical tacrolimus only significantly suppressed degranulation induced by m-xylene and c48/80. Our data shows that tacrolimus ointment partially inhibits plasma leakage and mast cell degranulation in rat skin induced by m-xylene and c48/80 but not capsaicin, suggesting that the inhibitory effect is not associated with a reduction in neurogenic-mediated mechanisms.

Skin and systemic pharmacokinetics of tacrolimus following topical application of tacrolimus ointment in adults with moderate to severe atopic dermatitis

Systemic exposure to tacrolimus following topical application of tacrolimus ointment is minimal. There are, however, no data on the distribution of tacrolimus in the skin. To assess the distribution of tacrolimus in the skin and the systemic pharmacokinetics of tacrolimus in adults with moderate to severe atopic dermatitis after first and repeated application of tacrolimus ointment. We investigated skin distribution of topically applied tacrolimus and systemic pharmacokinetics of percutaneously absorbed tacrolimus in adults with atopic dermatitis after topical application of tacrolimus 0.1% ointment twice daily for 2 weeks. Tacrolimus concentrations were assessed in full-thickness skin biopsies and blood samples. Of 14 patients, 11 completed treatment and were analysed. Mean +/- SD tacrolimus concentrations in the skin at 24 h after first and last ointment applications were 94 +/- 20 and 595 +/- 98 ng cm(-3), respectively. At 168 h after stopping treatment, values were 97% lower than at 24 h after last application. Tacrolimus concentration decreased with increasing skin depth. Systemic tacrolimus exposure after ointment application was low and highly variable, with 31% of samples below the limit of quantification (0.025 ng mL(-1)) and 94% below 1 ng mL(-1). Blood concentrations at 24 h after the first and last ointment applications were 750 and 1800 times lower, respectively, than those in skin. Physicians' assessments showed that tacrolimus ointment was effective and well tolerated. Tacrolimus was primarily partitioned in the skin, with minimal systemic absorption after topical application, in patients with atopic dermatitis.

Oral graft vs. host disease in children – Treatment with topical tacrolimus ointment

Oral chronic graft vs. host disease (GVHD) frequently presents in patients with sclerotic features of skin GVHD and is often associated with considerable limitations of oral food intake and decreased quality of life. Systemic tacrolimus is efficacious for prophylaxis and treatment of acute and chronic GVHD and topical tacrolimus has shown activity in chronic GVHD skin lesions. We therefore initiated a pilot study to investigate the safety and efficacy of topical tacrolimus ointment in children with oral GVHD. Six patients suffering from oral GVHD (five chronic and one acute) were included in the study. Tacrolimus ointment 0.1% was applied twice daily using sterile gauze. The only side-effects observed were a slight burning discomfort after the first application in one patient and after food intake in another patient. Tacrolimus was absorbed systemically in four of six patients. Of six patients, we observed a complete response in two, a very good partial response (VGPR) in two, and a PR in two patients, respectively. We conclude that topical application of tacrolimus ointment holds promise as a safe and efficacious treatment for oral GVHD in children. The Food and Drug Administration has recently issued a health advisory about a potential cancer risk associated with topical tacrolimus treatment of the skin; therefore, its benefits should be weighed against its potential risks and diligent long-term follow-up should be carried out especially in children.

Oral chronic GVHD in children—treatment with topical tacrolimus ointment

Oral chronic graft versus host disease (GVHD) frequently presents as lichen-type changes, hyperkeratotic plaques, pseudomembranes, or decreased oral range of motion in patients with sclerotic features of skin GVHD and is often associated with significant limitations of oral food intake and a generally decreased quality of life. Decreased oral intake is especially problematic in children with already reduced caloric uptake due to chronic gastrointestinal GVHD. Systemic tacrolimus is well established and efficacious for prophylaxis and treatment of acute and chronic GVHD and topical tacrolimus has shown activity in chronic GVHD skin lesions. We therefore initiated a pilot study to investigate the safety and efficacy of topical tacrolimus ointment in pediatric stem cell transplant recipients with debilitating oral chronic GVHD. Two patients (6 and 13 years) with β-thalassemia were included in the study at 179 and 382 days post transplant respectively. Both suffered from progressive onset, moderate to severe chronic GVHD with involvement of the oral mucosa exhibiting lichen-type changes alongside pain, erythema and small ulcerations of the oral mucosa. One patient additionally presented with progressive sclerosis of the lips limiting opening of the oral cavity. In both patients oral lesions had been refractory to systemic GVHD treatment (cyclosporine 3 and 2 mg/kg respectively). After exclusion of infectious causes for oral lesions, tacrolimus ointment 0.1% (Protopic®, Fujisawa Healthcare) was applied twice daily using a sterile gauze that was inserted into both buccal pouches and left in place for 20 minutes without rinsing the mouth afterwards. At a follow up of 24 and 14 weeks respectively, the only side effect observed was a slight burning discomfort after the first application in one patient. Tacrolimus was absorbed in both patients as exhibited by tacrolimus plasma levels up to 4.2 and 5.6 ng/ml respectively. Pain, erythematous lesions and ulcerations disappeared within 4 weeks of treatment in both. Lichenoid changes markedly improved in both and range of oral opening normalized in the patient affected. Systemic immunosuppression was tapered during treatment with topical tacrolimus in both patients. We conclude that topical application of tacrolimus ointment holds promise as a safe and efficacious treatment for oral chronic GVHD in children. These findings deserve to be affirmed in a larger prospective evaluation. Oral chronic graft versus host disease (GVHD) frequently presents as lichen-type changes, hyperkeratotic plaques, pseudomembranes, or decreased oral range of motion in patients with sclerotic features of skin GVHD and is often associated with significant limitations of oral food intake and a generally decreased quality of life. Decreased oral intake is especially problematic in children with already reduced caloric uptake due to chronic gastrointestinal GVHD. Systemic tacrolimus is well established and efficacious for prophylaxis and treatment of acute and chronic GVHD and topical tacrolimus has shown activity in chronic GVHD skin lesions. We therefore initiated a pilot study to investigate the safety and efficacy of topical tacrolimus ointment in pediatric stem cell transplant recipients with debilitating oral chronic GVHD. Two patients (6 and 13 years) with β-thalassemia were included in the study at 179 and 382 days post transplant respectively. Both suffered from progressive onset, moderate to severe chronic GVHD with involvement of the oral mucosa exhibiting lichen-type changes alongside pain, erythema and small ulcerations of the oral mucosa. One patient additionally presented with progressive sclerosis of the lips limiting opening of the oral cavity. In both patients oral lesions had been refractory to systemic GVHD treatment (cyclosporine 3 and 2 mg/kg respectively). After exclusion of infectious causes for oral lesions, tacrolimus ointment 0.1% (Protopic®, Fujisawa Healthcare) was applied twice daily using a sterile gauze that was inserted into both buccal pouches and left in place for 20 minutes without rinsing the mouth afterwards. At a follow up of 24 and 14 weeks respectively, the only side effect observed was a slight burning discomfort after the first application in one patient. Tacrolimus was absorbed in both patients as exhibited by tacrolimus plasma levels up to 4.2 and 5.6 ng/ml respectively. Pain, erythematous lesions and ulcerations disappeared within 4 weeks of treatment in both. Lichenoid changes markedly improved in both and range of oral opening normalized in the patient affected. Systemic immunosuppression was tapered during treatment with topical tacrolimus in both patients. We conclude that topical application of tacrolimus ointment holds promise as a safe and efficacious treatment for oral chronic GVHD in children. These findings deserve to be affirmed in a larger prospective evaluation.

Topical Application of Tacrolimus Ointment Did Not Alter the Cutaneous Pigmentation of Yucatan Micropigs

Tacrolimus is a potent immunosuppressant marketed for the prevention of rejection in liver and kidney transplantation. Topical tacrolimus has been shown to be effective in the treatment of atopic dermatitis, a disease with an immunologic basis, and is currently being developed for this indication. The objective of the current study was to determine whether repeated topical application of tacrolimus ointment could result in hypopigmentation at the application site(s). Each of 10 Yucatan miniature pigs received topical application of 0.03%, 0.1%, and 0.3% tacrolimus ointment, positive control (a combination of 2% 4-hydroxyanisole and 0.01% all-trans-retinoic acid, 4-HAArRA), and a negative control (vehicle placebo) to five test sites (approximately 12.5 cm2) along either side of the dorsal midline (10 sites per animal). Tacrolimus and controls were randomly assigned to the test site on each animal and were applied unoccluded twice daily for 8 weeks at a dose volume of 0.1 ml per site for tacrolimus and vehicle control and 0.025 ml per site for the positive control. Topical application of tacrolimus ointment in concentrations of up to 0.3% for 8 weeks had no effect on the cutaneous pigmentation of Yucatan miniature swine. In contrast, the application of 4-HAArRA produced a statistically significant (P<.05) induction of hypopigmentation from week 4 through the end of the study application.