What does pk stand for4/2/2024 ![]() ![]() There are no recent data on why families do or do not agree to participate in optional PK studies. The rate of participation in optional PK studies on COG Phase I Consortium Studies has been 60-70%. However, participation of children in the pharmacokinetic portion of phase I studies is optional when there is not prospect of direct benefit to the child. Pharmacokinetic studies provide critical information about the disposition of anticancer drugs in children. Relapsed Solid Tumors Relapsed Leukemia Relapsed Brain Tumors ![]() ![]() Participants fill out a 2-page survey asking about why they did or did not participate in the study's PK sampling.Patients 18 years of age and older and parents or guardians of children who are participating in a study of a drug that includes the option of participating in PK sampling.To learn why some people do or do not agree to participate in PK blood sampling studies.A better understanding of why patients or families do or do not agree to participate in PK studies may help researchers make it easier for people to participate in them.Often, patients or parents of children in drug studies choose not to participate in optional PK studies that are part of the study protocol.These studies provide critical information about new drugs. A pharmacokinetic (PK) study of a new drug involves taking several blood samples over a period of time from study participants to determine how the body handles the substance.Why Should I Register and Submit Results?. ![]()
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