Navigation Links
Use of naltrexone reduces inflammation in Crohn's patients

Naltrexone reduced inflammation in Crohn's patients in a research study at Penn State College of Medicine.

Crohn's disease is a chronic inflammatory condition of the gastrointestinal tract causing abdominal pain, diarrhea, gastrointestinal bleeding and weight loss. Treatments for Crohn's disease are designed to reduce the inflammation but may be associated with rare but serious side effects, including infections and lymphoma. Research suggests that endorphins and enkephalins, part of the opioid system, have a role in the development or continuation of inflammation.

Naltrexone is a drug used to help recovering alcoholics and drug users stay clean. It inhibits the body's opioid system that regulates pain and is involved in cell growth, repair and inflammation. Naltrexone binds to a protein receptor that blocks the effects of opioids, including the body's own enkephalins and endorphins, substances that reduce pain and produce a feeling of wellbeing.

"Although the cause of Crohn's disease is unknown, research suggests it involves a complex interplay of environmental, genetic, microbial, immune and nonimmune factors," said Jill P. Smith, M.D., professor of medicine. "We hypothesize that the opioid system is involved in inflammatory bowel disease and that interfering with an opioid receptor will lead to the reversal of the inflammation."

Researchers studied 40 patients with active Crohn's disease. Patients received either naltrexone or a placebo for 12 weeks. All patients then continued on naltrexone for an additional 12 weeks. This was a double-blind study with neither the patient or healthcare provider knowing which treatment was being received.

Eighty-eight percent of those treated with naltrexone had at least a 70-point decline in Crohn's Disease Activity Index scores compared to 40 percent of placebo-treated patients. CDAI is a point system used to quantify symptoms in Crohn's patients. Researchers noted no statistical difference at four or eight weeks of treatment, suggesting a response requires at least 12 weeks of treatment. Results were published in the journal Digestive Diseases and Sciences.

Gastrointestinal inflammation was evaluated by appearance of the intestine on colonoscopy and scores from biopsy specimens. After 12 weeks, researchers noted no change in those taking a placebo. However, 78 percent of those on naltrexone experienced healing in the lining of the intestine.

For those patients who received a placebo for 12 weeks and then were placed on naltrexone for the following 12 weeks, 70 percent experienced at least a 70-point decline in the CDAI score and healing of the colon as seen on colonoscopy. Patients who continued use of naltrexone for an additional 12 weeks (24 total weeks) had a further 75-point decline in CDAI scores, leading to remission (score of less than 150) in 50 percent of the patients.

"We report that naltrexone improves clinical and inflammatory activity of subjects with moderate to severe Crohn's disease compared to placebo-treated controls," Smith said.

The researchers are planning clinical trials to look at use of naltrexone in children with Crohn's disease and have secured orphan drug status from the Food and Drug Administration for the use of naltrexone in children with Crohn's disease. Smith and Zagon hold a patent for the use of naltrexone in inflammatory bowel disease -- Crohn's disease and ulcerative colitis.


Contact: Matthew Solovey
Penn State

Related medicine news :

1. Service Foods Reduces its Carbon Footprint and Grows Sales
2. Health Care Reform Report Covers Uninsured, Reduces Costs
3. New cardiac CT technology drastically reduces patient radiation exposure
4. Accelerated radiation therapy reduces toxicity in patients with advanced head and neck cancers
5. Targeted delivery of losartan reduces liver inflammation and scarring
6. Drug dramatically reduces nausea and vomiting in bone marrow transplant patients
7. Soccer reduces risk of falls and bone fractures
8. Pioneering treatment reduces disability in premature babies with serious brain hemorrhage
9. New drug candidate reduces blood lipids
10. PSA Test Reduces Prostate Cancer Deaths by 40%
11. New technique reduces tobacco smoke damage to lungs in mice
Post Your Comments:
(Date:6/24/2016)... ... June 24, 2016 , ... ... Scientific Sessions in Dallas that it will receive two significant new grants to ... came as PHA marked its 25th anniversary by recognizing patients, medical professionals and ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with all ... brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway ... call for a minimum wage raise to $12 an hour by 2020 and then adjusting ... restore the lost value of the minimum wage, assure the wage floor does not erode ...
(Date:6/24/2016)... ... June 24, 2016 , ... EB Medicine presented its ... Emergency Medicine conference in Ponte Vedra Beach, FL. The awards honor the outstanding ... Medicine Practice and Pediatric Emergency Medicine Practice. , “With this award, we ...
(Date:6/24/2016)... ... June 24, 2016 , ... Puradigm® & Innovative Solutions ... initiated cultivation and processing operations at its production facility, and opened its first ... is the manufacturer of a complete system of proactive air and surface purification ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 The Academy of ... recommendations that would allow biopharmaceutical companies to ... entities that make formulary and coverage decisions, a move ... of new medicines. The recommendations address restrictions ... appear on the drug label, a prohibition that hinders ...
(Date:6/24/2016)... -- According to a new market research ... Safety Pen Needles), Needle Length (4mm, 5mm, 6mm, 8mm, ... Purchase (Retail, Non-Retail) - Trends & Global Forecasts to ... for the forecast period of 2016 to 2021. This ... 2021 from USD 1.65 Billion in 2016, growing at ...
(Date:6/23/2016)... 23, 2016  MedSource announced today that it ... software solution of choice.  This latest decision demonstrates ... to their clients by offering a state-of-the-art electronic ... establishes nowEDC as the EDC platform of choice ... clients.  "nowEDC has long been a preferred EDC ...
Breaking Medicine Technology: