IPT and IPTLD have been presented at the NIH for a Best Case presentation. You can read the minutes of that meeting in the Archives of the NIH September 18 ,2000. One thing I can say: IPT was not turned away, needs more clinical trials. The prescription drugs - chemo drugs - are all FDA approved. Only medical doctors can administer IPT and there is a basic training for the interested physicians.
IPTLD / IPT is a treatment alternative.