US backed study that exploited China prisoners: rights group

* Research may have violated human rights

* National Institute on Drug Abuse involved

NEW YORK, Aug 2 (Reuters) - A medical study published in the

weekly journal Science and partially funded by the U.S.

government was conducted at detention centers in China that

engage in severe violations of human rights, according to a

letter published by the journal Thursday.

The study, in Science's April 13 issue, tested an

experimental treatment for addiction on 66 former heroin users

confined at two facilities in Beijing.

Joseph Amon, director of the health and human rights

division at Human Rights Watch, charged in the letter that in

both places addicts are "detained without due process" and, he

told Reuters, "held in a closed institution where monitoring of

human rights abuses is not allowed." It is not clear from the

study whether the addicts "were voluntary patients" at the

facilities or forcibly held, Amon said in his letter.

Human Rights Watch has interviewed detainees recently

released from the centers as well as a former guard and Chinese

government officials who have been inside others.

Under American law, federally funded research on inmates

must be approved by a panel that includes at least one prisoner

who volunteers to serve, said bioethicist Karen Maschke of The

Hastings Center, a think tank in Garrison, New York, who is not

involved in the controversy.

The authors of the study include 11 scientists at Peking

University, led by Yan-Xue Xue, and two at the National

Institute on Drug Abuse (part of the U.S. National Institutes of

Health). NIDA provided financial support for the paper in the

form of salaries to co-authors David Epstein and Yavin Shaham,

who advised on the experiment's design, among other

contributions. NIDA declined to make them available to speak

about the study.

In a reply to Amon, also published in Science on Thursday,

eight of the Peking scientists said they "saw no indication of

the abuses" he described, which would violate Chinese law.

Beijing's drug treatment centers "provide comprehensive

care," they wrote, including methadone for heroin addicts,

"psychological counseling" and "regular medical treatment."

The two NIDA researchers did not sign the response, nor did

three of the Peking University scientists. Lead authors Ping Wu

and Lin Lu told Reuters by email, "All authors are fine with the

letter but only authors on human experiments were on the letter;

the other authors only did rats experiments."

"The NIDA investigators did not sign the letter because they

were not engaged in the human studies," NIDA said in a statement

to Reuters.

The institute did not respond to a question about the

discrepancy between that assertion and a written statement in

April, obtained by Reuters, saying its scientists were "involved

in the data analyses and the preparation of the manuscript."

INVOLUNTARY CONFINEMENT

Drug detention centers in Beijing have been the subject of

reports by Chinese and Western news organizations, human rights

groups, scientists, and the United Nations. A 2010 article in

China Daily said drug users at Ankang Hospital, one of the

facilities where addicts were studied by Xue and colleagues, are

typically confined involuntarily for two years. Therapies

include boxing, playing in sand, and crossing rope bridges, none

of which have been shown to be effective against addiction.

Ankang is staffed by 20 psychologists and 30 policemen, China

Daily reported, and houses hundreds of detainees, according to

Human Rights Watch.

A 2010 investigation by the New York Times found that drug

users are confined to the facilities by police without trials or

the possibility of appeal and endure "an unremitting gantlet of

physical abuse and forced labor without any drug treatment."

In what it called a "landmark" statement, the UN in March

called on member countries to close compulsory drug detention

centers.

Amon brought Human Rights Watch's concerns to NIDA in April,

asking it to "conduct an independent investigation of the

research and denounce the arbitrary detention of the roughly

200,000 people currently in compulsory drug detention centers in

China." The figure is based on HRW's research.

NIDA has not responded to that request, though it told

Reuters it is not currently funding research in drug detention

centers in Asia.

The institute and its scientists "seem to have dismissed

their own ethical obligation as both funders and authors," said

Amon, who is also an associate in the department of epidemiology

at the Bloomberg School of Public Health at Johns Hopkins

University and a lecturer in public and international affairs at

Princeton University.

In the study, the Beijing scientists tested a technique

called "memory retrieval-extinction" to prevent drug cravings in

heroin users. Other research had shown that presenting addicts

with a reminder of their addiction, such as the sight of a crack

pipe, without letting them experience the drug's effects can

make the cue less likely to trigger craving. But that effect

fades within weeks or even days.

The study concluded that the technique works longer, up to

six months, if the addict's memories of the drug are first

triggered ("retrieved," via a five-minute video about the drug)

before the link between the reminder and the drug is

"extinguished."

The scientists concluded that memory retrieval-extinction

offers "a promising nonpharmacological method" for fighting

addiction.

As concerns about research ethics have grown in recent

years, top journals have retracted studies that did not adhere

to standards protective of human subjects.

Studies published by Science must have approval from an

ethics board; the Chinese scientists say their study had such

approval from Peking University.

"The journal is not an investigative body," a spokeswoman

for Science told Reuters. "On the basis of the authors' response

as well as (the editors') own internal review, which included a

science ethicist, the concerns about human rights seem to have

been addressed, and the paper remains in good standing at this

time."

(Edited by Michele Gershberg and Prudence Crowther)