Is low dose methotrexate an effective Birdshot treatment ?

Is low dose methotrexate an effective Birdshot treatment ?

Methotrexate is a cancer drug that has been used since the 1950s. It acts by inhibiting the metabolism of folic acid. In low doses, methotrexate is a safe and well-tolerated drug in the treatment of certain autoimmune diseases.

A study in Holland (by Rothova A, Norel AO, Los LI, Berendschot TT) looked at the effectiveness of low-dose methotrexate treatment for Birdshot Chorioretinopathy and how well it prevented visual loss in Birdshot

The retrospective case series involved 76 patients with HLA-A29 positive BSCR. 46 of these patients were followed for 5 years, 18 for longer than 10 years.

The treatment regimens were divided into the three groups:

1) No systemic immunomodulatory treatment

2) Treatment with systemic corticosteroids

3) Treatments with methotrexate

The group of patients who had methotrexate treatment showed better visual outcomes than those patients on just corticosteroid-based treatment (visual outcomes remained unchanged). The untreated patients visual outcomes were worse.

(Retina 3 March  2011)

URL: http://www.ncbi.nlm.nih.gov/pubmed/21386763

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