Not all anti-T lymphocyte globulin preparations are suitable for use in aplastic anemia: significantly inferior results with jurkat cell-reactive anti-T lymphocyte globulin in clinical practice.

Abstract

BACKGROUND:

Immunosuppressive therapy (IST) with anti-T lymphocyte globulin (ATG) plus cyclosporine (CSA) is standard therapy in patients with non-severe aplastic anemia (AA) in need of treatment and severe aplastic anemia (SAA) who do not have an available HLA-matched donor. The aim of this study was to analyze patients submitted to different ATG preparations as first-line treatment.

PATIENTS AND METHODS:

We retrospectively analyzed adult aplastic anemia (AA) patients who received ATG as first-line treatment between 1999 and 2013 to compare hematologic response and survival.

RESULTS:

During the time period mentioned 4 different ATG preparations had been used in 38 AA patients (34 severe, 4 non-severe). Responses were better with Lymphoglobulin (6 complete response 1 partial response, 0 refractory disease and 2 death within 3 months after ATG, i.e. during induction), Thymoglobulin (3, 1, 4 and 1, respectively) or ATGAM (1, 2, 1 and 1) compared to the ATG-Fresenius (ATG-F) group (3, 0, 6 and 6) (P = .07). Statistically significant inferior results with ATG-Fresenius (3 complete or partial responses, 6 refractoriness and 6 induction deaths) were evident when other preparations are lumped together (14 complete or partial responses, 5 refractoriness and 4 induction mortalities) (P = .045). Estimated 1 year survival rates were 52.5% versus 76.9%, respectively (P = .13).

CONCLUSIONS:

These data support the notion that not all ATG preparations are suitable for use in AA.

• Authors: Eliacik Eylem, Buyukasik Yahya, Bektas Ozlen, Malkan Umit, Gunes Gursel, Isik Ayse, Demiroglu Haluk, Aksu Salih, Goker Hakan, Sayinalp Nilgun, Haznedaroğlu Ibrahim, Ozcebe Osman
• Journal: International journal of clinical and experimental medicine (Int J Clin Exp Med) Vol. 8 Issue 9 Pg. 16334-9 ( 2015) ISSN: 1940-5901 [Print] United States
• PMID: 26629153 (Publication Type: Journal Article)