Featured Research

from universities, journals, and other organizations

Implanting medication to treat opioid dependence appears beneficial in decreasing opioid usage

Date:
October 13, 2010
Source:
JAMA and Archives Journals
Summary:
Helping to address the issue of medication adherence, persons with opioid dependence who had the medication buprenorphine implanted had less opioid use over 16 weeks, according to a new study.

Helping to address the issue of medication adherence, persons with opioid dependence who had the medication buprenorphine implanted had less opioid use over 16 weeks, according to a study in the October 13 issue of JAMA.

Dependence on opioids, in the form of heroin or prescription pain medications, is a significant health concern. A treatment that has been increasing in usage is the medication buprenorphine, with numerous studies supporting the efficacy of sublingually (beneath the tongue) administered buprenorphine. However, poor treatment adherence, resulting in craving and withdrawal symptoms that increase the likelihood of relapse, is a concern, according to background information in the article. To address these problems with adherence and nonmedical use, an implantable formulation of buprenorphine was developed that delivers a constant and low level of buprenorphine. A preliminary open-label phase 2 study reported favorable results with this implant in opioid-dependent patients.

Walter Ling, M.D., of the University of California, Los Angeles, and colleagues conducted a phase 3 study of buprenorphine implants for treatment of opioid dependence at 18 sites in the United States between April 2007 and June 2008. The study included 163 adults, ages 18 to 65 years, diagnosed with opioid dependence. One hundred eight were randomized to receive buprenorphine implants and 55 to receive placebo implants. The implants were placed below the skin in the inner side of the nondominant arm. The 4 buprenorphine implants, each of which gradually released 80 mg of buprenorphine, and the 4 placebo implants, were removed after 6 months. Standardized individual drug counseling was provided to all patients. Opioid use was gauged via urine samples.

During the course of the study, the buprenorphine implant group had significantly more urine samples negative for illicit opioids during weeks 1 through 16. Patients with buprenorphine implants had an average percentage of urine samples that tested negative for illicit opioids of 40.4 percent and a median (midpoint) of 40.7 percent; those in the placebo group had an average of 28.3 percent and a median of 20.8 percent.

Treatment group differences were also evident on additional efficacy measures, with 65.7 percent of patients in the buprenorphine implant group remaining in the study for the full 24-week study period compared to 30.9 percent of patients in the placebo group. No patients in the buprenorphine implant group met the definition of treatment failure; 30.9 percent of placebo patients were classified as treatment failures.

"Those who received buprenorphine implants also had fewer clinician-rated and patient-rated withdrawal symptoms, had lower patient ratings of craving, and experienced a greater change on clinician global ratings of severity of opioid dependence and on the clinician global ratings of improvement than those who received placebo implants," the researchers write.

"In summary, this study found that the use of buprenorphine implants compared with placebo resulted in less opioid use over 16 weeks and also across the full 24 weeks."

Editorial: Advances in the Treatment of Opioid Dependence -- Continued Progress and Ongoing Challenges

Patrick G. O'Connor, M.D., M.P.H., of the Yale University School of Medicine, New Haven, Conn., writes in an accompanying editorial that the study by Ling et al represents a potentially important step forward in the effort to improve and expand the treatment options for opioid dependence.

"Further research is needed to assess how this treatment compares with current opioid maintenance treatment prior to the widespread use of implant buprenorphine in clinical practice. If further research suggests that this buprenorphine implant is as good as or better than current treatment approaches, then the study by Ling et al would represent a major advance in the substantial and continued progress that has occurred in the treatment of opioid dependence since methadone maintenance began in the 1960s."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal References:

  1. W. Ling, P. Casadonte, G. Bigelow, K. M. Kampman, A. Patkar, G. L. Bailey, R. N. Rosenthal, K. L. Beebe. Buprenorphine Implants for Treatment of Opioid Dependence: A Randomized Controlled Trial. JAMA: The Journal of the American Medical Association, 2010; 304 (14): 1576 DOI: 10.1001/jama.2010.1427
  2. P. G. O'Connor. Advances in the Treatment of Opioid Dependence: Continued Progress and Ongoing Challenges. JAMA: The Journal of the American Medical Association, 2010; 304 (14): 1612 DOI: 10.1001/jama.2010.1496

Cite This Page:

JAMA and Archives Journals. "Implanting medication to treat opioid dependence appears beneficial in decreasing opioid usage." ScienceDaily. ScienceDaily, 13 October 2010. <www.sciencedaily.com/releases/2010/10/101012163249.htm>.
JAMA and Archives Journals. (2010, October 13). Implanting medication to treat opioid dependence appears beneficial in decreasing opioid usage. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2010/10/101012163249.htm
JAMA and Archives Journals. "Implanting medication to treat opioid dependence appears beneficial in decreasing opioid usage." ScienceDaily. www.sciencedaily.com/releases/2010/10/101012163249.htm (accessed July 23, 2014).

Share This




More Mind & Brain News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Do Obese Women Have 'Food Learning Impairment'?

Do Obese Women Have 'Food Learning Impairment'?

Newsy (July 18, 2014) Yale researchers tested 135 men and women, and it was only obese women who were deemed to have "impaired associative learning." Video provided by Newsy
Powered by NewsLook.com
Does Mixing Alcohol and Energy Drinks Boost Urge To Drink?

Does Mixing Alcohol and Energy Drinks Boost Urge To Drink?

Newsy (July 18, 2014) A new study suggests that mixing alcohol with energy drinks makes you want to keep the party going. Video provided by Newsy
Powered by NewsLook.com
Pot Cooking Class Teaches Responsible Eating

Pot Cooking Class Teaches Responsible Eating

AP (July 18, 2014) Following the nationwide trend of eased restrictions on marijuana use, pot edibles are growing in popularity. One Boston-area cooking class is teaching people how to eat pot responsibly. (July 18) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins