Table 3.
Rates of Complete Hematologic Response, Major Cytogenetic Response (All Studies), and Major Molecular Response (CA180-013 Study Only) in Patients Treated With Dasatinib After Loss of Response to Prior Imatinib
| Patients, n/N (%) | |||
|---|---|---|---|
| Variable | Group 1: Loss of MCyR on Imatinib | Group 2: Loss of MCyR and CHR on Imatinib | Group 3: Loss of CHR on Imatinib Without Prior MCyR |
| CHR: All patients | 139/151 (92) | 28/33 (85) | 98/109 (90) |
| MCyR: All patients | 123/151 (81) | 21/33 (64) | 38/109 (35) |
| CCyR | |||
| All patients | 108/151 (72) | 14/33 (42) | 28/109 (26) |
| CCyR data by dosing schedule | |||
| 70 mg BID population | 67/89 (75) | 10/25 (40) | 20/78 (26) |
| 100 mg QD population | 21/28 (75) | 1/1 (100) | 1/9 (11) |
| Other regimens, 50 mg BID or 140 mg QD | 20/34 (59) | 3/7 (43) | 7/22 (32) |
| CCyR data by study | |||
| Study CA180-013, 70 mg BID | 36/47 (77) | 6/17 (35) | 13/50 (26) |
| Study CA180-017, 70 mg BID | 12/19 (63) | 1/2 (50) | 5/20 (25) |
| Study CA180-034 | |||
| 100 mg QD | 21/28 (75) | 1/1 (100) | 1/9 (11) |
| 50 mg BID | 11/17 (65) | 1/2 (50) | 2/10 (20) |
| 140 mg QD | 9/17 (53) | 2/5 (40) | 5/12 (42) |
| 70 mg BID | 19/23 (83) | 3/6 (50) | 2/8 (25) |
| MMR: Study CA180-013, 70 mg BID* | 28/47 (60) | 5/17 (29) | 13/50 (26) |
MCyR indicates major cytogenetic response; CHR, complete hematologic response; CCyR, complete cytogenetic response; BID, twice daily; QD, once daily; MMR, major molecular response.
In all assessed patients.