CLINICAL TRIALS PROFILE FOR CYSTEAMINE HYDROCHLORIDE
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505(b)(2) Clinical Trials for Cysteamine Hydrochloride
| Trial Type | Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|---|
| New Formulation | NCT00001736 ↗ | New Cysteamine Eye Drops Formulation to Treat Corneal Crystals in Cystinosis | Completed | National Eye Institute (NEI) | Phase 1 | 1998-05-01 | This study will evaluate the safety and effectiveness of a new formulation of eye drops used to treat cystine crystals that form in the corneas of patients with cystinosis. Cystinosis is an inherited disease caused by a defective enzyme, in which excessive amounts of the amino acid cystine accumulate in the body. Among others, symptoms include poor growth and development of kidney failure. In addition, after 10 to 20 years, the cornea-the outside covering of the eye over the iris and pupils-becomes so packed with cystine crystals that small, painful breaks may develop. This corneal condition is treated with cysteamine eye drops. This study is designed to provide additional information about this medication that the Food and Drug Administration requires before approving it for marketing. The study will examine, in two separate but simultaneous investigations, the safety and effectiveness of a new cysteamine formulation. In both studies, before treatment begins, patients will have a complete eye examination, and photographs of the eye will be taken using a bright flash. Safety Study Children and adults currently enrolled in a cystinosis study at the National Institutes of Health may participate in this trial. They will receive the current cysteamine formulation in one eye and the new preparation in the other eye. The drops will be given every hour during waking hours. Patients will be observed daily for the first week of treatment and will be called at 2 weeks and 4 weeks to check on side effects, if any. At 6 months, they will undergo a repeat eye examination. Patients (or their parents) will keep a daily diary recording the condition of each eye. Effectiveness Study Children and adults from Ann Arbor, Michigan, LaJolla, California, and the NEI clinic may be enrolled in this study. Participants will receive medication as described above for the safety trial. They will be observed daily for the first week and will have repeat eye examinations, including photographs, at months 3, 6, 9 and 12 to see if the crystals have decreased. Patients will keep a daily diary of the condition of both eyes. |
| New Formulation | NCT00010426 ↗ | Randomized Study of New Formulation Ophthalmic Cysteamine Hydrochloride for Corneal Cystine Accumulation in Patients With Cystinosis | Completed | Leadiant Biosciences, Inc. | N/A | 1999-12-01 | OBJECTIVES: I. Determine the proportion of patients with cystinosis who experience a serious adverse effect when treated with a new formulation of cysteamine hydrochloride for corneal cystine accumulation. II. Determine the proportion of patients with a reduction in corneal crystal density of 1.00 unit when treated with this regimen. |
| New Formulation | NCT00010426 ↗ | Randomized Study of New Formulation Ophthalmic Cysteamine Hydrochloride for Corneal Cystine Accumulation in Patients With Cystinosis | Completed | Sigma Tau Pharmaceuticals, Inc. | N/A | 1999-12-01 | OBJECTIVES: I. Determine the proportion of patients with cystinosis who experience a serious adverse effect when treated with a new formulation of cysteamine hydrochloride for corneal cystine accumulation. II. Determine the proportion of patients with a reduction in corneal crystal density of 1.00 unit when treated with this regimen. |
| New Formulation | NCT00010426 ↗ | Randomized Study of New Formulation Ophthalmic Cysteamine Hydrochloride for Corneal Cystine Accumulation in Patients With Cystinosis | Completed | FDA Office of Orphan Products Development | N/A | 1999-12-01 | OBJECTIVES: I. Determine the proportion of patients with cystinosis who experience a serious adverse effect when treated with a new formulation of cysteamine hydrochloride for corneal cystine accumulation. II. Determine the proportion of patients with a reduction in corneal crystal density of 1.00 unit when treated with this regimen. |
| >Trial Type | >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
All Clinical Trials for Cysteamine Hydrochloride
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT00001213 ↗ | Cysteamine Eye Drops to Treat Corneal Crystals in Cystinosis | Completed | National Eye Institute (NEI) | Phase 2 | 1986-04-01 | Cystinosis is an inherited disease that results in poor growth and kidney disease, among other things. The damage to the kidneys and other organs is thought to be due to accumulation of cystine inside the cells of various body tissues. This chemical also accumulates in the cornea-the covering of the eye over the pupil and iris. After 10 to 20 years, the corneas of some patients become so packed with crystals that the surfaces may become irregular, occasionally causing small, painful breaks. Patients enrolled in a NIH study on cystinosis are receiving the drug cysteamine. Taken by mouth, this drug reduces cystine in some tissues, but not in the cornea. This study began in 1986 to test whether cysteamine eye drops could prevent or reduce corneal cystine crystals in these patients. The drops have been very effective in removing crystals and reducing pain in patients who take the medication as directed. Patients who do not take the medication as prescribed do not benefit. After the effectiveness of the drops was proven, the main purpose was modified to continue to evaluate the long-term safety and effectiveness of cysteamine eye drops for treating cystine crystals in the corneas of patients with cystinosis until the drops are approved by the Food and Drug Administration (FDA). When the New Drug Application (NDA) for the Sigma-Tau standard formulation is granted, this protocol will be terminated. |
| NCT00001736 ↗ | New Cysteamine Eye Drops Formulation to Treat Corneal Crystals in Cystinosis | Completed | National Eye Institute (NEI) | Phase 1 | 1998-05-01 | This study will evaluate the safety and effectiveness of a new formulation of eye drops used to treat cystine crystals that form in the corneas of patients with cystinosis. Cystinosis is an inherited disease caused by a defective enzyme, in which excessive amounts of the amino acid cystine accumulate in the body. Among others, symptoms include poor growth and development of kidney failure. In addition, after 10 to 20 years, the cornea-the outside covering of the eye over the iris and pupils-becomes so packed with cystine crystals that small, painful breaks may develop. This corneal condition is treated with cysteamine eye drops. This study is designed to provide additional information about this medication that the Food and Drug Administration requires before approving it for marketing. The study will examine, in two separate but simultaneous investigations, the safety and effectiveness of a new cysteamine formulation. In both studies, before treatment begins, patients will have a complete eye examination, and photographs of the eye will be taken using a bright flash. Safety Study Children and adults currently enrolled in a cystinosis study at the National Institutes of Health may participate in this trial. They will receive the current cysteamine formulation in one eye and the new preparation in the other eye. The drops will be given every hour during waking hours. Patients will be observed daily for the first week of treatment and will be called at 2 weeks and 4 weeks to check on side effects, if any. At 6 months, they will undergo a repeat eye examination. Patients (or their parents) will keep a daily diary recording the condition of each eye. Effectiveness Study Children and adults from Ann Arbor, Michigan, LaJolla, California, and the NEI clinic may be enrolled in this study. Participants will receive medication as described above for the safety trial. They will be observed daily for the first week and will have repeat eye examinations, including photographs, at months 3, 6, 9 and 12 to see if the crystals have decreased. Patients will keep a daily diary of the condition of both eyes. |
| NCT00002110 ↗ | A Phase II/III Study of Cysteamine (Mercaptoethylamine) and Zidovudine for the Treatment of HIV Disease | Completed | Mylan Laboratories | Phase 2 | 1969-12-31 | To determine the safety and tolerance of low-dose versus high-dose cysteamine administered concurrently with zidovudine (AZT). To determine the pharmacokinetics and effects on immune function and viral load in patients receiving these drug regimens. |
| NCT00010426 ↗ | Randomized Study of New Formulation Ophthalmic Cysteamine Hydrochloride for Corneal Cystine Accumulation in Patients With Cystinosis | Completed | Leadiant Biosciences, Inc. | N/A | 1999-12-01 | OBJECTIVES: I. Determine the proportion of patients with cystinosis who experience a serious adverse effect when treated with a new formulation of cysteamine hydrochloride for corneal cystine accumulation. II. Determine the proportion of patients with a reduction in corneal crystal density of 1.00 unit when treated with this regimen. |
| >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
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