PMID- 18425621 OWN - NLM STAT- MEDLINE DCOM- 20080701 LR - 20211020 IS - 0340-5354 (Print) IS - 0340-5354 (Linking) VI - 255 IP - 4 DP - 2008 Apr TI - Thalidomide causes sinus bradycardia in ALS. PG - 587-91 LID - 10.1007/s00415-008-0756-3 [doi] AB - OBJECTIVE: Neuroinflammation contributes to motor neuron degeneration in ALS. Thalidomide (THL) shows potent anti-inflammatory properties and increased the lifespan in ALS transgenic mice. Thalidomide was therefore suggested as atherapeutic intervention for the treatment of ALS.We conducted a pilot, randomized clinical trial of THL in patients with ALS to assess safety, feasibility, and preliminary estimates of treatment efficacy. METHODS: Patients were randomized to THL in combination with riluzole (n = 18) or riluzole alone (n = 19). THL was initiated at 100 mg per day for 6 weeks. Thereafter, the dose was increased every week by 50 mg until reaching the dose of 400 mg per day and planned to continue for another 12 weeks. RESULTS: Within 12 weeks of THL treatment, nine THL patients (50%) developed bradycardia defined as a heart rate below 60 beats per minute (bpm) and ranged from 46 to 59 bpm. Mean heart rate dropped by 17 bpm with THL treatment. Severe symptomatic bradycardia of 30 bpm occurred in one patient. A further patient died from sudden unexpected death. The study was terminated prematurely for safety concerns. The secondary outcome variables showed similar results for both groups. CONCLUSION: Bradycardia was the most common adverse event of THL treatment in ALS. THL-related bradycardia does not appear to be ALS-specific. It is conceivable, however, that the unexpected frequency and severity of THL-induced bradycardia may be related to subclinical involvement of the autonomic nervous system in ALS. The cardiac toxicity discourages further clinical trials and compassionate use of THL in ALS. ClinicalTrials.gov Identifier: NCT00231140. FAU - Meyer, Thomas AU - Meyer T AD - Dept. of Neurology, Charite University Hospital, Campus Virchow-Klinikum, Ambulanz fur ALS und andere Motoneuronenerkrankungen, Augustenburger Platz 1, 13353 Berlin, Germany. thomas.meyer@charite.de FAU - Maier, Andre AU - Maier A FAU - Borisow, Nadja AU - Borisow N FAU - Dullinger, Jorn S AU - Dullinger JS FAU - Splettstosser, Gerald AU - Splettstosser G FAU - Ohlraun, Stephanie AU - Ohlraun S FAU - Munch, Christoph AU - Munch C FAU - Linke, Peter AU - Linke P LA - eng SI - ClinicalTrials.gov/NCT00231140 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20080421 PL - Germany TA - J Neurol JT - Journal of neurology JID - 0423161 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Excitatory Amino Acid Antagonists) RN - 0 (Immunosuppressive Agents) RN - 4Z8R6ORS6L (Thalidomide) RN - 7LJ087RS6F (Riluzole) SB - IM MH - Adult MH - Aged MH - Amyotrophic Lateral Sclerosis/complications/*drug therapy/immunology MH - Anti-Inflammatory Agents/administration & dosage/adverse effects MH - Arrhythmia, Sinus/*chemically induced/physiopathology MH - Bradycardia/*chemically induced/physiopathology MH - Death, Sudden/etiology MH - Dose-Response Relationship, Drug MH - Drug Administration Schedule MH - Drug Therapy, Combination MH - Electrocardiography MH - Excitatory Amino Acid Antagonists/administration & dosage MH - Humans MH - Immunosuppressive Agents/administration & dosage/adverse effects MH - Inflammation/*drug therapy/immunology MH - Middle Aged MH - Parasystole/*chemically induced/physiopathology MH - Pilot Projects MH - Riluzole/administration & dosage MH - Thalidomide/administration & dosage/*adverse effects MH - Treatment Outcome EDAT- 2008/04/22 09:00 MHDA- 2008/07/02 09:00 CRDT- 2008/04/22 09:00 PHST- 2007/05/03 00:00 [received] PHST- 2007/09/27 00:00 [accepted] PHST- 2007/08/26 00:00 [revised] PHST- 2008/04/22 09:00 [pubmed] PHST- 2008/07/02 09:00 [medline] PHST- 2008/04/22 09:00 [entrez] AID - 10.1007/s00415-008-0756-3 [doi] PST - ppublish SO - J Neurol. 2008 Apr;255(4):587-91. doi: 10.1007/s00415-008-0756-3. Epub 2008 Apr 21.