Levine T ―Drug Design, Development and Therapy. 2012
Acthar Gel was evaluated in DM/PM patients who were experiencing ongoing disease exacerbations and decrease in muscle strength1
STUDY OBJECTIVE
A retrospective case series of 5 patients with either DM or PM who experienced a disease exacerbation and either failed or exhibited tolerability issues with previous treatments1
- All patients had received ≥3 previous treatments
- All 5 patients were also being treated with stable doses of at least 1 other commonly used therapy for dermatomyositis or polymyositis
- These medications had been prescribed for at least 60 days before and were maintained during and after Acthar Gel treatment
- 4 patients received 80 U twice weekly for 12 weeks; 1 patient received 80 U once weekly for 12 weeks
- Manual muscle testing (MMT) was performed to assess muscle strength at baseline and 3 months
Patient Characteristics
Myositis | Age range |
3 patients with DM 2 patients with PM |
25-68 years |
Mean duration of disease | Concomitant treatments* |
6 years | Prednisone Methotrexate Intravenous immunoglobulin Mycophenolate mofetil Azathioprine Cyclosporine |
Myositis | Age range | Mean duration of disease | Concomitant treatments* |
3 patients with DM 2 patients with PM |
25-68 years | 6 years | Prednisone Methotrexate Intravenous immunoglobulin Mycophenolate mofetil Azathioprine Cyclosporine |
*Not every patient was on the same concomitant treatments.
Study Limitations
These results are based on a retrospective 5-patient case series and may not be fully representative of outcomes in the overall patient population. All 5 patients were on multiple therapies. The clinical outcomes may not be solely attributable to Acthar Gel.
5 of 5 patients treated with Acthar Gel demonstrated improvement in MMT scores at Week 12
Patient | Muscle tested | Baseline | At assessment |
Patient 1: 45-year-old, DM |
Iliopsoas Quadriceps |
3 3 |
4+ 4+ |
Patient 2: 25-year-old, DM |
Iliopsoas Quadriceps |
3 3- |
4 4+ |
Patient 3: 43-year-old, DM |
Deltoids Triceps |
2 3 |
4 4 |
Patient 4: 55-year-old, PM |
Deltoids Triceps |
3 3 |
4+ 4+ |
Patient 5: 68-year-old, PM |
Iliopsoas Quadriceps |
4 4 |
4+ 5 |
Patient | Muscle tested | Baseline | At assessment |
Patient 1: 45-year-old, DM |
Iliopsoas Quadriceps |
3 |
4+ 4+ |
Patient 2: 25-year-old, DM |
Iliopsoas Quadriceps |
3 |
4 |
Patient 3: 43-year-old, DM |
Deltoids Triceps |
2 |
4 |
Patient 4: 55-year-old, PM |
Deltoids Triceps |
3 |
4+ |
Patient 5: 68-year-old, PM |
Iliopsoas Quadriceps |
4 |
4+ |
MMT was performed using the Medical Research Council scale (1-5). Patients were treated for 12 weeks and MMT was performed at different times of assessment. All 5 patients were on stable doses of at least 1 commonly used therapy for dermatomyositis or polymyositis.
Safety Findings
- Patients receiving Acthar Gel were examined for significant side effects, including: hyperglycemia, diabetic ketoacidosis, and hyperosmolar states
- No significant adverse events as defined in the study methods were reported by the investigator in any of the 5 patients