Trial Medicine Start Again

After resting for one week without the intake of the trial medicine, my Father has been coughing regularly. In today Oncologist appointment, the consultant advised us to try to retake the trial medicine. The consultant has arrange for a CT Scan 3 days before meeting him again.
The dosage will remain the same as previously. If there is any complication resulted from this dosage, we can stop the intake and called the clinical trial officer or the NCC. I guess the complication will start 2 or 3 weeks later. It will be best if no complications appear.
It takes one to two hours for the pharmacist to prepare the trial medicine. We need to wait for the preparation of the trial medicine.  Currently, this medicine maybe the best solution for my father condition.