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Anorexia Treatment: No Magic Bullet

Research Review Doesn't Reveal Single Effective Treatment Strategy for Eating Disorders
By
WebMD Health News
Reviewed by Louise Chang, MD

April 18, 2006 -- Antidepressants and other drugs are not effective treatments for anorexiaanorexia nervosa, but behavioral therapy can help prevent recovering anorexics from relapsing, according to findings from a review of eating disorder studies.

The treatment picture was somewhat more encouraging for bulimia and binge eating disorder. Specific drug therapies did appear to help patients with these eating disorders recover, and these patients were also more likely to benefit from interventions like behavioral therapy.

The review of the scientific literature was conducted by the Evidence-based Practice Center of the Agency for Healthcare Research and Quality (AHRQ) and the University of North Carolina, Chapel Hill.

Individualized Treatment

Center program director Beth A. Collins Sharp, PhD, RN, says the failure to identify a clearly effective treatment strategy for anorexia is disappointing, but that doesn't mean that the available treatments don't work.

"The fact that we were not able to identify a panacea treatment makes it all the more important that patients work with their [health care] provider to find the approach that works for them," Sharp says.

"Most anorexia treatment continues to be done [in hospitals or treatment centers], where things can be individualized and monitored very closely. That is appropriate until we have evidence that can give us a better idea of which treatments work best."

Anorexia and bulimia are most common among female teenagers and young adults, but males and older people also suffer from the eating disorders.

The Findings

Sharp and colleagues reviewed more than 40 studies examining anorexiaanorexia treatments and outcomes published from 1980 to 2005, along with more than 40 bulimia studies and more than 20 studies involving patients with binge eating disorder.

They concluded that:

  • Neither medication nor medication combined with behavioral therapy showed evidence of being effective for helping anorexic patients recover from acute illness.

  • Cognitive behavioral therapy (CBT), a form of psychotherapy that encourages patients to develop thinking patters to counteract unhealthy behaviors, did show some efficacy in helping adult anorexics avoid relapses once they achieved a normal weight. There was not enough evidence to determine if this therapy is effective earlier in treatment.

  • Prozac was found to be useful for the treatment of bulimia in a short-term clinical trial. It is not clear from the available clinical evidence if other selective serotonin reuptake inhibitor (SSRI) antidepressants (such as Paxil or Zoloft) are also effective.

  • Both group and individual CBT showed some evidence of effectiveness in the treatment of bulimia, binge eating, and purging. However, the optimum length of treatment and the best strategy for maintaining these health benefits were not clear from the studies.

  • A specific type of family therapy that encourages parents to closely monitor and even choose the foods their child eats is showing promise in the treatment of anorexia in adolescents.

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