Effectiveness of Extended Treatment for Drug Dependence (ETDD) in the City Study

Inclusion Criteria:

- (1) qualify for a DSM-IV diagnosis of cocaine dependence, with cocaine use in the 6
months prior to entrance into the City of Philadelphia Department of Behavioral
Health facilities or controlled environment;

- (2) 18 to 75 years of age;

- (3) no current psychotic disorder (as assessed with the psychotic screen from the
SCID) or evidence of dementia severe enough to prevent participation in outpatient
treatment;

- (4) no acute medical problem requiring immediate inpatient treatment;

- (5) no current participation in methadone or other modes of Drug and Alcohol
treatment, other than an Intensive Outpatient Program;

- (6) willingness to be randomized and participate in research.

- (7) Finally, because of study follow-up requirements, subjects will be able to
provide the name, verified telephone number, and address of at least two contacts who
can provide locating information on the patient during follow-up. We will include
patients with dependence on other substances, provided that they are cocaine
dependent and meet other inclusion criteria.

Exclusion Criteria:

- Current dependence on opiates is an exclusion as those participants may be better
served as part of a methadone program rather than a telephone based therapy protocol.
Also, if patients are court-ordered to treatment, or otherwise considered prisoners,
they will not be included in the study.