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  • Title: [Treatment of thyroid-associated ophthalmopathy: comparative study between prednisone and COP therapy].
    Author: Min HY, Liu XP, Jiang RX, Lian L, Hu TS.
    Journal: Zhonghua Yan Ke Za Zhi; 2005 Sep; 41(9):781-5. PubMed ID: 16191342.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of two therapies, high-dose prednisone and COP in the treatment of patients with active thyroid-associated ophthalmopathy (TAO). METHODS: According to severity and compliance, the patients admitted in Peking Union Medical College Hospital from August 2000 to July 2003 were divided into two groups. Thirteen patients with active TAO were treated with high-dose prednisone. The initial dosage was 1.5-2.0 mg.kg(-1).d(-1) (maximal dosage 200 mg), tapering gradually, and shifting to alternate-day treatment. Fourteen patients in the COP group were treated with cyclophosphamide (CTX), oncovin (VCR) and prednisone. This therapy was modified from CHOP in the treatment of patients with non-Hodgkin's lymphoma: CTX 600 mg/m(2), VCR 1.1 mg/m(2) were administrated by intravenous infusion every 2-4 weeks, prednisone was given orally at 1 mg.kg(-1).d(-1) for seven days after each infusion. The duration of treatment for both groups was approximately 10 months. The parameters including clinical activity score (CAS), thickness of extra-ocular muscle as well as 24 h urinary GAG were used to evaluate the efficacy of treatment in both groups. RESULTS: There was no significant difference in age and sex between two groups. However the patients in the COP group were more severe than that in prednisone group (P < 0.05). CAS in the patients treated with prednisone before and after treatment were 4.4 +/- 1.8, 1.6 +/- 1.1 respectively, that in patients treated with COP were 6.5 +/- 1.6, 1.9 +/- 1.3 respectively. All these changes were highly significant (P < 0.01). The thickness of extra-ocular muscles in the patients treated with prednisone decreased from (6.5 +/- 1.5) mm to (5.8 +/- 1.1) mm, that in patients treated with COP decreased from (6.8 +/- 1.7) mm to (5.3 +/- 1.1) mm. Both changes were highly significant (P < 0.01). Comparative study of the changes in the thickness of extra-ocular muscle by percentage between two groups demonstrated that the muscle thickness in patients treated with COP was decreased by (23.7 +/- 4.3)%, that in patients treated with prednisone was by (13.3 +/- 4.6)%. The difference between the two groups was highly significant (P < 0.01). The 24 h urinary GAG level in patients treated by prednisone decreased from (33.6 +/- 6.6) mg/24 h before treatment to (16.7 +/- 2.5) mg/24 h after treatment. Those in COP group were (40.6 +/- 10.1) mg/24 h and (15.7 +/- 5.1) mg/24 h respectively. The difference was significant (P < 0.01) in each group. There were no serious complications during treatment. CONCLUSIONS: Both the prednisone and COP therapy are effective in the treatment of patients with active TAO. The preliminary results indicate that COP is more effective than prednisone, it suggests that COP might be feasible for treating patients with progressive and severe TAO.
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