Overview Use of 3,4-Diaminopyridine in the Treatment of Lambert-Eaton Syndrome Status: Approved for marketing Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary To learn more about the effect of 3, 4-Diaminopyridine (3,4-DAP) on patient diagnosed with Lambert-Eaton myasthenic syndrome (LEMS). Details Lead Sponsor: University of Colorado, DenverTreatments: 3,4-diaminopyridine4-AminopyridineAmifampridine