Interventional {{label}}

Tolerability and Efficacy of L-Serine in Patients With Amyotrophic Lateral Sclerosis (ALS)


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Approved by FDA
Approved outside USA
Is a supplement


Enrollment Criteria

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The purpose of this study is to determine the tolerability of L-Serine oral doses for ALS patients and assess preliminary indications of efficacy

All patients will receive the same dose of the study treatment over 6 months. For each participant the study will last approximately one year with follow up visits after the treatment period of 6 months is completed. The visits will include blood draws, vital sign checks, neurological and physical exams, pulmonary testing with forced vital capacity (FVC), and questionnaires.

Inclusion Criteria:
- Diagnosis of probable or definite ALS
- ALSFRS-R score >25 and FVC score ≥ 60% predicted
- If currently taking Riluzole and/or Edaravone/Radicava must be on stable dose for 3
months prior to Baseline/Screening. If the dosing has not been stable for 3 months
prior to Baseline/Screening or if stopped due to an adverse event, the waiting period
off the medication will be 7 days. If not on either of these medications may start if
desired either or both medications after enrollment into study.
Exclusion Criteria:
- Diagnosis of probable or definite ALS more than 3 years prior to study enrollment
- Diagnosis or previous history of ischemic stroke, brain tumor, uncontrolled diabetes,
renal insufficiency, or severe hypertension.
- Diagnosis or previous history of comorbid progressive neurodegenerative disease such
as Alzheimer's disease, Parkinson's disease, Lewy Body disease, Pick's disease,
Huntington's disease, Progressive Supranuclear palsy. ALS patients diagnosed with
frontotemporal dementia will not be excluded from this study.
- Diagnosis or previous history of symptomatic peripheral neuropathy. Patients with
findings of peripheral neuropathy on electrodiagnostic tests only but no clinical
symptoms at the time of enrollment are eligible.
- Undergoing any chemotherapy or radiation therapy for any cancer
- Any medical condition likely to interfere with the conduct of the trial or survival of
the patient during this study period
- Pregnant women or women who are breast feeding
- Has taken L-Serine supplement within 30 days prior to start of study drug

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ALS Research Collaborative
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Mitsubishi Tanabe Pharma