In general, graduates of U.S. registered nursing programs meet the training requirements to challenge the CNA state exam without having to complete a nursing assistant class. The training you received in nursing school makes you eligible to take the nurse aide examination without further training even if you did not pass the NCLEX-RN exam, however, because you completed the nursing program in the Philippines, you might want to make sure that this applies in your case.
To see if you are eligible to take the test without further training, I encourage you to call the Massachusetts CNA Registry at (617) 753-8144. To obtain information regarding the nurse aide state exam, request an application, and schedule the examination you may call the Massachusetts Nurse Aide Testing Office at (781) 979-4010 or (800) 962-4337 (outside of MA).