Study details In 1928, the "
Oslo Study of Untreated Syphilis" had reported on the
pathologic manifestations of untreated syphilis in several hundred white males. This study was a
retrospective study since investigators pieced together information from the histories of patients who had already contracted syphilis but remained untreated for some time. The researchers reasoned that the knowledge gained would benefit humankind; however, it was determined afterward that the doctors did harm their subjects by depriving them of appropriate treatment once it had been discovered. The study was characterized as "the longest non-therapeutic experiment on human beings in medical history." PHS researchers prevented these men from getting treatment, thus depriving them of chances for a cure. Vonderlehr argued, "this study is of great importance from a scientific standpoint. It represents one of the last opportunities which the science of medicine will have to conduct an investigation of this kind. ... [Study] Doctor [Murray] Smith ... asked that these men be excluded from the list of draftees needing treatment. ... in order to make it possible to continue this study on an effective basis." By the end of the study in 1972, only 74 of the test subjects were still alive. communication of
diagnosis and accurate reporting of test results.
Study clinicians The
venereal disease section of the
U.S. Public Health Service (PHS) formed a study group in 1932 at its national headquarters in Washington, D.C.
Taliaferro Clark, head of the USPHS, is credited with founding it. His initial goal was to follow untreated syphilis in a group of African-American men for six months to one year, and then follow up with a treatment phase. When the
Rosenwald Fund withdrew its financial support, a treatment program was deemed too expensive. Clark, however, decided to continue the study, interested in determining whether syphilis had a different effect on African-Americans than it did on whites. A retrospective study of untreated syphilis in white males had been conducted in Oslo, Norway, and could provide the basis for comparison. The prevailing belief at the time was white people were more likely to develop neurosyphilis and that Black people were more likely to sustain cardiovascular damage. Clark resigned before the study was extended beyond its original length. Although Clark is usually assigned blame for conceiving the U.S. Public Health Service Syphilis Study at Tuskegee,
Thomas Parran Jr. also helped develop a non-treatment study in Macon County, Alabama. As the Health Commissioner of New York State (and former head of the PHS Venereal Disease Division), Parran was asked by the Rosenwald Fund to assess their
serological survey of syphilis and demonstration projects in five Southern states. Among his conclusions was the recommendation that: "If one wished to study the natural history of syphilis in the African American race uninfluenced by treatment, this county (Macon) would be an ideal location for such a study." Oliver C. Wenger was the director of the regional PHS Venereal Disease Clinic in
Hot Springs, Arkansas. He and his staff took the lead in developing study procedures. Wenger continued to advise and assist the study when it was adapted as a long-term, no-treatment observational study after funding for treatment was lost.
Raymond A. Vonderlehr was appointed on-site director of the research program and developed the policies that shaped the long-term follow-up section of the project. His method of gaining the "
consent" of the subjects for
spinal taps (to look for signs of
neurosyphilis) was by advertising this diagnostic test as a "special free treatment". Several African-American
health workers and
educators associated with the
Tuskegee Institute played a critical role in the study's progress. The extent to which they knew about the full scope of the study is not clear in all cases. Nurse
Eunice Rivers, who had trained at Tuskegee Institute and worked at its hospital, was recruited at the start of the study to be the main point of contact with the participants. As a part of "Miss Rivers' Lodge", participants would receive free physical examinations at
Tuskegee University, free rides to and from the clinic, hot meals on examination days, and free treatment for minor ailments. Rivers was also key in convincing families to sign autopsy agreements in return for funeral benefits. As the study became long-term, Rivers became the chief person who provided continuity to the participants. She was the only study staff person to work with participants for the full 40 years. File:vonderle.gif|
Raymond A. Vonderlehr (medical doctor) File:Eugene Dibble.jpg|
Eugene Dibble (medical doctor) File:Eunice Rivers.jpg|
Eunice Rivers (nurse) File:Oliver Wenger.jpg|Oliver Wenger ==Study termination==