Table 3. Maintenance therapy in acute... | American Society of Hematology

Table 3.

Maintenance therapy in acute promyelocytic leukemia (APL).

Study	n	Maintenance	Relapse Rate (%)
Abbreviations: ATRA, all-trans retinoic acid; CT, chemotherapy (6-mercaptopurine plus methotrexate)
No. Amer. Intergroup¹⁴	94	ATRA	32
	105	Observation	57
APL¹⁵	63	ATRA	20
	64	ATRA + CT	9
	63	CT	22
	67	Observation	32
PETHEMA¹²	123	ATRA + CT	5

Study	n	Maintenance	Relapse Rate (%)
Abbreviations: ATRA, all-trans retinoic acid; CT, chemotherapy (6-mercaptopurine plus methotrexate)
No. Amer. Intergroup¹⁴	94	ATRA	32
	105	Observation	57
APL¹⁵	63	ATRA	20
	64	ATRA + CT	9
	63	CT	22
	67	Observation	32
PETHEMA¹²	123	ATRA + CT	5