- 2 -
There are four phases to the human clinical trial process that establish the safety, efficacy,
and outcomes of a given experimental treatment:
phase one is a small-scale study that tests the safety and dosage of a treatment;
phase two is a larger-scale study used to identify the effectiveness and side effects of
the treatment;
phase three is a long-term, large-scale study to test the effectiveness and identify
adverse side effects of the treatment; and
phase four is the final test of the treatment’s safety and efficacy, and involves giving the
treatment to several thousands of participants.
An online database, managed by the NIH’s National Library of Medicine, contains
information on all current and concluded public and private clinical trials around the world. This
database is available at ClinicalTrials.gov, and the information is provided directly from the
study sponsors or investigators. Clinical trials can be filtered by a number of different criteria
including by state, study type, study phase, or funding source.
FDA Expanded Access (Compassionate Use) Program
A patient, through his or her physician, may request access to an experimental treatment
outside of a clinical trial from the FDA. The following conditions must be met by the patient and
the patient’s physician for the FDA to approve the request for expanded access for the
diagnosis, monitoring, or treatment of a serious disease or condition:
the patient must be unable to obtain the treatment in any other way or participate in a
clinical trial;
the physician must determine that there are no other comparable treatments available
for the patient;
the physician must determine that the risks of the treatment are not greater than the
risks posed by the patient’s condition;
the physician must submit documentation describing the treatment plan and use of the
investigational treatment on behalf of the patient;
the FDA must determine that the evidence suggests that treatment may be safe and
effective in the circumstance; and
the FDA must determine that provision of the treatment will not interfere with any current
clinical trials.
A physician can complete an expanded access request for an individual patient in about
45 minutes. In emergency situations, a physician can submit a request to the FDA and receive
permission for expanded access over the phone, provided that he or she subsequently submits
the appropriate paperwork.
FDA expanded access is offered through three different categories: access for individual
patients; access for intermediate-sized patient populations; and access for widespread use.
The Reagan-Udall Foundation, an independent nonprofit created by Congress to advance
regulatory science, has created an Expanded Access Navigator website for the FDA. The
navigator guides patients, caregivers, and physicians through the different expanded access
options and indicates how to apply for them. Specifically, the navigator provides information on
pharmaceutical companies that offer expanded access, including links to company statements
regarding their expanded access policies.