Table 2.

Reasons for patient withdrawal

Reason for withdrawal	n	Patient decision/other subcategories∗	n
Total	132	Total	95
Lost to follow-up	14	Patient perception of disease worsening	29
Adverse event	23	Desire to switch or combine therapies	26
Patient decision/other	95	Difficulty, inability, or unwillingness to adhere to study protocol	32
		Pregnancy	8

∗Patient decision/other subcategories were derived from written comments provided by Withdrawn patients at their final visit.