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    Home> Publications > QUEST Extra >Volume 14, Number 3, May/June 2007

History of Corticosteroids in
Duchenne Muscular Dystrophy

Date
Trial or Study Benefits Side
Effects
1970s,
1980s
4 trials used prednisone in high doses ranging from 1.5 mg/kg/day to 5 mg/kg on alternate days prolongation of walking by about 2 years in one study; one study showed no benefit Majority in group that walked longer had
Excessive weight gain; hyperactivity, cataracts, high blood pressure, bone fractures also noted
1989 prednisone or prednisolone at 0.3, 0.75 and 1.5 mg/kg/day for 6 months improved ability to rise from floor, time to walk 9 meters (30 feet) and respiratory function; 0.75 mg group showed more benefit than 0.3 mg group, but 1.5 mg group did not show additional benefit Excessive weight gain, fat redistribution and behavioral changes in treated boys
1991 prednisone or prednisolone at 0.3, 0.75 and 1.5 mg/kg/day for 6 months improved ability to rise from floor, time to walk 9 meters (30 feet) and respiratory function; 0.75 mg group showed more benefit than 0.3 mg group, but 1.5 mg group did not show additional benefit weight gain, fat redistribution and behavioral changes in treated boys
1991 daily prednisone compared with alternate-day prednisone at equivalent weekly doses strength improved in alternate-day group but was not sustained as with daily prednisone side effects not significantly different with daily vs. alternate-day prednisone
1991 daily prednisone at starting dose of 0.75 mg/kg/day slower progression of disease than in untreated group; function improved in some treated boys side effects required decrease in dose in some; final dose ranged from 0.15 mg/kg/day to 0.75 mg/kg/day
1993 prednisolone 0.75 mg/kg/day for 10 days alternating with 20 days off drug positive influence on strength at 6 months, followed by slow decline weight gain and other side effects much less than expected with daily treatment
1993 immunosuppressant azathioprine didn’t show benefit when added to 0.3 mg/kg/day of prednisone or when used alone   weight gain, growth slowing, other side effects with prednisone
1994 deflazacort at 2 mg/kg every other day for 2 years treated boys did better in walking, rising from chair and from floor; treated boys lost walking ability at average of 11.8 years, compared to 10.5 years in untreated group moderate weight gain, slight behavioral changes
2000 prednisone at 0.75 mg/kg/day or deflazacort at 0.9 mg/kg/day for a year at 1 year, two treated groups had same degree of better motor function than untreated at 9 months, average weight increase in deflazacort group was 5 percent; in prednisone group, was 18 percent
2001 prednisone or prednisolone at 0.3, 0.75 and 1.5 mg/kg/day for 6 months (pooled results of 1989, 1991, 2001 studies) improved ability to rise from floor, time to walk 9 meters (30 feet); 0.75 mg group showed more benefit than 0.3 mg group, but 1.5 mg group did not show additional benefit weight gain, fat redistribution and behavioral changes in boys treated with 0.75 mg/kg/day in two studies; 0.3 mg/kg/day group did not differ in fat distribution from untreated in one study
2001 prednisone at 0.75 mg/kg/day for average of 10 years; dose decreased over time average age of loss of walking was 14.5 years, compared to expected loss of walking at 8.8 to 10.5 years side effects required decrease in dose; average tolerated dose was 0.35
mg/kg/day
2001 deflazacort at 0.9 mg/kg/day for average of 3.8 years

7 out of 30 treated boys stopped walking at average of 12.3 years; all 24 untreated stopped walking at average of 9.8 years

respiratory function in treated group significantly greater at age 15 than in untreated

none of treated boys required scoliosis surgery, compared to 13 in untreated group

10 out of 30 treated boys developed cataracts

significant growth slowing in treated group compared to untreated

2002 prednisolone at 0.75 mg/kg/day for 10 days alternating with 10 days off drug for 4 to 5+ years improvement in ability to rise from floor, hop, jump, and run without waddle compared to untreated did not see abnormal weight gain, bone loss or other signs of toxicity
2002 prednisone at 5 mg/kg/day Fridays and Saturdays only strength improved over 6 to 12 months irritability requiring dose reduction or stopping drug in at least 6 of 20 boys
2003 deflazacort for average of 5.1 years

cardiomyopathy in 1 out of 21 treated boys, compared to 7 out of 12 untreated boys

treated boys had significantly better respiratory function

10 of 21 treated boys stopped walking, compared with all 12 untreated boys

dose had to be decreased to average of .59 mg/kg/day at age 18 because of side effects

cataracts,
below-average height in treated group

2003 prednisone, prednisolone or deflazacort at 1 mg/kg/day for average of 4.5 years, with calcium and sometimes vitamin D   10 out of 25 treated boys developed spinal (vertebral) fracture
2004 European Neuromuscular Centre (ENMC) publishes standards for use of corticosteroids in DMD evidence for use of daily steroids in DMD established; monitoring, minimizing, treating side effects necessary; alternatives to daily steroids should be tested against daily steroids in large trials; cardiac and bone protection studies should be planned; quality of life should be assessed  
2005 American Academy of Neurology publishes guidelines for corticosteroids in DMD prednisone at 0.75 mg/kg/day is optimal, but dosages as low as 0.3 mg/kg/day still have benefit;
deflazacort at 0.9 mg/kg/day can be substituted for prednisone;
benefits and side effects need monitoring;
if excessive weight gain occurs, dosage should be decreased to 0.5 mg/kg/day and further decreased to 0.3 mg/kg/day, if necessary
 
2006 deflazacort starting at 0.9 mg/kg/day with 1,000 units of vitamin D and 750 mg of calcium for average of 5.5 years

ability to climb four stairs, rise from floor and walk 10 meters (33 feet) preserved significantly in treated boys compared to untreated

respiratory function significantly greater at age 18 in treated compared to untreated boys; by 18, no treated boy required ventilation, compared to 46 percent untreated

4 of 40 treated boys had cardiomyopathy, compared to
20 of 34 untreated

by age 18, 4 of 40 treated boys had significant spinal curvature, compared to 30 of 34 untreated

treated boys were significantly shorter than untreated

some treated boys gained excessive weight

22 of 40 treated boys developed cataracts, compared to none of the untreated

long bone fractures same (25 percent) in treated and untreated groups

vertebral fractures in 3 treated boys and none of untreated

2 deaths out of 40 treated boys, compared with 12 deaths out of 34 untreated

Nutritional Considerations | Coping with Corticosteroids

Also see “Not Always Smooth Sailing: Charting a Corticosteroid Course,” Quest Vol. 14 No. 3

 

 
 
     
     
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