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Trial of Theracurmin for Patients With Amyotrophic Lateral Sclerosis (ALS)

An Open-label, Single-center, 6-month Trial of Theracurmin for Patients With Amyotrophic Lateral Sclerosis (ALS)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04499963
Enrollment
100
Registered
2020-08-05
Start date
2020-08-28
Completion date
2022-08-30
Last updated
2023-09-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis

Brief summary

This will be a 6-month, widely inclusive, virtual, single-center, open-label pilot trial utilizing a historical control group.

Detailed description

This will be a 6-month, widely inclusive, virtual, single-center, open-label pilot trial utilizing a historical control group. Following informed consent and screening, participants with ALS will take Theracurmin 1 capsule (90mg) twice daily for 6-months. Treatment with the Theracurmin and all study outcome measures and labs are being performed exclusively for research purposes. Collected data includes saliva and stool microbiome sampling, adverse events, concomitant medications, weight and height, Theracurmin treatment evaluations, and Thrive Questionnaires. Participants will be asked to register on the website Patientslikeme.

Interventions

DRUGTheracurmin HP

The intervention is based on the twice daily dosage of Theracurmin 90 mg capsules used in a trial of patients with mild cognitive impairment

Sponsors

Richard Bedlack, M.D., Ph.D.
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This will be a 6-month, widely inclusive, largely remote/virtual, single-center, open-label pilot trial utilizing a historical control group.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Male or female, aged at least 18 years. * Sporadic or familial ALS diagnosed as possible, laboratory-supported probable, probable, or definite as defined by revised El Escorial criteria. * Patient is able to understand and express informed consent (in the opinion of the site investigator). * Patient has access to the Internet on a desktop computer, laptop, or tablet and has a working email address. * Patient or caregiver is willing and able to use a computer and enter data on a secure website. * Patient is able to read and write English. * Patient is expected to survive for the duration of the trial. * Women must not be pregnant (will have evidence of a negative pregnancy test obtained by local physician within past 7 days or be post-menopausal) * Women must not be able to become pregnant (e.g., post-menopausal, surgically sterile, or using adequate birth control methods) for the duration of the study and three months after study completion. Adequate contraception includes: abstinence, hormonal contraception (oral contraception, implanted contraception, injected contraception or other hormonal contraception, for example patch or contraceptive ring), intrauterine device (IUD) in place for ≥ 3 months, barrier method in conjunction with spermicide, or another adequate method.

Exclusion criteria

* Patient is taking other experimental treatments for ALS (those that are part of an active research study). * Prior side effects from curcumin or turmeric containing products * Patient has a medical or psychiatric illness that could in the investigator's opinion interfere with the patient's ability to participate in this study. * Pregnant women or women currently breastfeeding. * Life expectancy shorter than the duration of the trial. * Taking an antiplatelet agent or anticoagulant (due to the theoretically increased risk of bleeding from curcumin products).

Design outcomes

Primary

MeasureTime frameDescription
Change in ALSFRS-R SlopeStarting at week 4 and then once every 30 days for 6 monthsThe ALSFRS-R (ALS Functional Rating Scale-Revised) will be determined at all video/telephone visits. ALSFRS-R is a quickly administered (five minute) ordinal rating scale (ratings 0-4) used to determine patients' assessments of their capability and independence in 12 functional activities. All 12 activities are relevant in ALS. Change in ALSFRS-R scores correlate with change in strength over time, and it is closely associated with quality of life measures and predicted survival. Each task is rated on a five-point scale from 0 = can't do, to 4 = normal ability. Individual item scores are summed to produce a reported score of between 0=worst and 48=best.

Secondary

MeasureTime frameDescription
Total Number of Adverse Events as Measured by Patient Reportingup to 6 monthsAdverse and serious adverse events will be recorded throughout the study.
Enrollment Rateup to 6 monthsThe number of participants enrolled divided by the number of months it took to enroll them.
Retention as Measured by the Number of Participants Who Completed the 6 Month Study Visitmonth 6The percentage of enrolled participants who completed the 6 month study visit.
Shannon Diversity Index of the Oral MicrobiomeBaseline, month 1, month 6Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. The Shannon diversity index takes into account the number of species living in a habitat (richness) and their relative abundance (evenness). The minimum value is 0, which indicates no diversity (only one species is found). There is no upper limit to the index; the maximum value occurs when all species have the same number of individuals. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Faith's Phylogenetic Diversity of the Oral MicrobiomeBaseline, month 1, and month 6Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. Phylogenetic diversity (PD) is a measure of biodiversity, based on phylogeny (the tree of life). PD is defined as equal to the sum of the lengths of all the branches on the tree that span the members of the set. The branch lengths on the tree count the relative number of new features arising along that part of the tree. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Number of Participants With ALS ReversalMonth 6Number of participants who have an ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised) score that improves by 4 points or more over 6 months. The ALSFRS-R is used to determine patients' assessments of their capability and independence in 12 functional activities. All 12 activities are relevant in ALS. Change in ALSFRS-R scores correlate with change in strength over time, and it is closely associated with quality of life measures and predicted survival. Each task is rated on a five-point scale from 0 = can't do, to 4 = normal ability. Individual item scores are summed to produce a reported score of between 0=worst and 48=best.
Pielou's Evenness Index of the Oral MicrobiomeBaseline, month 1, month 6Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. Pielou's evenness is an index that measures diversity along with species richness. While species richness is the number of different species in a given area, evenness is the count of individuals of each species in an area. A calculated value of Pielou's evenness ranges from 0 (no evenness) to 1 (complete evenness). Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Shannon Diversity Index of the Stool MicrobiomeBaseline, month 1, month 6The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. The Shannon diversity index takes into account the number of species living in a habitat (richness) and their relative abundance (evenness). The minimum value is 0, which indicates no diversity (only one species is found). There is no upper limit to the index; the maximum value occurs when all species have the same number of individuals. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Faith's Phylogenetic Diversity of the Stool MicrobiomeBaseline, month 1, month 6The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Metagenomic analysis of deidentified selected fecal sample will be done on patients that positively respond to Theracurmin to achieve strain level identification of microbes positively and negatively associated with improved outcomes. Phylogenetic diversity (PD) is a measure of biodiversity, based on phylogeny (the tree of life). PD is defined as equal to the sum of the lengths of all the branches on the tree that span the members of the set. The branch lengths on the tree count the relative number of new features arising along that part of the tree. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Observed Features (Amplicon Sequence Variants, ASVs) of the Stool MicrobiomeBaseline, month 1, month 6The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. An amplicon sequence variant (ASV) is any one of the inferred single DNA sequences recovered from a high-throughput analysis of marker genes. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Pielou's Evenness Index of the Stool MicrobiomeBaseline, month 1, month 6The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Pielou's evenness is an index that measures diversity along with species richness. While species richness is the number of different species in a given area, evenness is the count of individuals of each species in an area. A calculated value of Pielou's evenness ranges from 0 (no evenness) to 1 (complete evenness). Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.
Observed Features (Amplicon Sequence Variants, ASV) of the Oral MicrobiomeBaseline, month 1, month 6Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. An amplicon sequence variant (ASV) is any one of the inferred single DNA sequences recovered from a high-throughput analysis of marker genes. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Countries

United States

Participant flow

Recruitment details

Patients were recruited through the Duke ALS Clinic over a 16 month period.

Pre-assignment details

Patients with ALS who met inclusion criteria were enrolled into the Open Label Arm. The healthy control arm was for people without ALS who came from the same household as the patients.

Participants by arm

ArmCount
Open Label Arm
The intervention is twice daily dosage of Theracurmin 90 mg capsules. This same dose was used in a successful trial of patients with mild cognitive impairment. Theracurmin HP capsules containing 90 mg curcumin each that will be taken as one capsule twice daily for 6 months. Each capsule contains 300 mg Theracurmin enhanced bioavailable water-dispersible turmeric rhizome complex providing 30% curcumin (90 mg). The content of Theracurmin HP has been independently certified by NSF International under NSF/ANSI 173. Theracurmin HP: The intervention is based on the twice daily dosage of Theracurmin 90 mg capsules used in a trial of patients with mild cognitive impairment
50
Healthy Control Arm
We will seek to enroll 50 healthy control participants. We will attempt to enroll one control subject from each enrolled primary participant's home, preferably a spouse or partner of similar age if possible. We plan to use this data to compare the microbiome of control participants to that of the ALS participants at baseline, week 4 and month 6. We will not conduct further follow-up or collect additional samples with the control subjects.
0
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event30
Overall StudyDeath30
Overall StudyLack of Efficacy70
Overall StudyLost to Follow-up20

Baseline characteristics

CharacteristicOpen Label ArmTotal
Age, Continuous60.96 years
STANDARD_DEVIATION 11.46
60.96 years
STANDARD_DEVIATION 11.46
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants
Race (NIH/OMB)
Black or African American
3 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants3 Participants
Race (NIH/OMB)
White
43 Participants43 Participants
Region of Enrollment
United States
50 Participants50 Participants
Sex: Female, Male
Female
19 Participants19 Participants
Sex: Female, Male
Male
31 Participants31 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 500 / 0
other
Total, other adverse events
23 / 500 / 0
serious
Total, serious adverse events
1 / 500 / 0

Outcome results

Primary

Change in ALSFRS-R Slope

The ALSFRS-R (ALS Functional Rating Scale-Revised) will be determined at all video/telephone visits. ALSFRS-R is a quickly administered (five minute) ordinal rating scale (ratings 0-4) used to determine patients' assessments of their capability and independence in 12 functional activities. All 12 activities are relevant in ALS. Change in ALSFRS-R scores correlate with change in strength over time, and it is closely associated with quality of life measures and predicted survival. Each task is rated on a five-point scale from 0 = can't do, to 4 = normal ability. Individual item scores are summed to produce a reported score of between 0=worst and 48=best.

Time frame: Starting at week 4 and then once every 30 days for 6 months

Population: Participants with ALSFRS-R scores available.

ArmMeasureValue (MEAN)Dispersion
Open Label ArmChange in ALSFRS-R Slope0.229 ALSFRS-R points per weekStandard Deviation 0.274
Healthy Control ArmChange in ALSFRS-R Slope0.224 ALSFRS-R points per weekStandard Deviation 0.194
Comparison: We compared he ALSFRS-R slope (not the actual score) of the patients in our open label treatment versus the historical controls.p-value: 0.984t-test, 2 sided
Secondary

Enrollment Rate

The number of participants enrolled divided by the number of months it took to enroll them.

Time frame: up to 6 months

Population: Data not collected on the healthy control arm.

ArmMeasureValue (NUMBER)
Open Label ArmEnrollment Rate3.1 participants per month
Secondary

Faith's Phylogenetic Diversity of the Oral Microbiome

Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. Phylogenetic diversity (PD) is a measure of biodiversity, based on phylogeny (the tree of life). PD is defined as equal to the sum of the lengths of all the branches on the tree that span the members of the set. The branch lengths on the tree count the relative number of new features arising along that part of the tree. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, and month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmFaith's Phylogenetic Diversity of the Oral MicrobiomeBaseline13.5 units of PD
Open Label ArmFaith's Phylogenetic Diversity of the Oral MicrobiomePost-treatment (months 1 and 6 combined)13.2 units of PD
Healthy Control ArmFaith's Phylogenetic Diversity of the Oral MicrobiomeBaseline12.8 units of PD
Healthy Control ArmFaith's Phylogenetic Diversity of the Oral MicrobiomePost-treatment (months 1 and 6 combined)12.7 units of PD
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.5Kruskal-Wallis
Secondary

Faith's Phylogenetic Diversity of the Stool Microbiome

The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Metagenomic analysis of deidentified selected fecal sample will be done on patients that positively respond to Theracurmin to achieve strain level identification of microbes positively and negatively associated with improved outcomes. Phylogenetic diversity (PD) is a measure of biodiversity, based on phylogeny (the tree of life). PD is defined as equal to the sum of the lengths of all the branches on the tree that span the members of the set. The branch lengths on the tree count the relative number of new features arising along that part of the tree. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmFaith's Phylogenetic Diversity of the Stool MicrobiomeBaseline10.8 units of PD
Open Label ArmFaith's Phylogenetic Diversity of the Stool MicrobiomePost-treatment (months 1 and 6 combined)10.8 units of PD
Healthy Control ArmFaith's Phylogenetic Diversity of the Stool MicrobiomeBaseline10.4 units of PD
Healthy Control ArmFaith's Phylogenetic Diversity of the Stool MicrobiomePost-treatment (months 1 and 6 combined)10.6 units of PD
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Number of Participants With ALS Reversal

Number of participants who have an ALSFRS-R (Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised) score that improves by 4 points or more over 6 months. The ALSFRS-R is used to determine patients' assessments of their capability and independence in 12 functional activities. All 12 activities are relevant in ALS. Change in ALSFRS-R scores correlate with change in strength over time, and it is closely associated with quality of life measures and predicted survival. Each task is rated on a five-point scale from 0 = can't do, to 4 = normal ability. Individual item scores are summed to produce a reported score of between 0=worst and 48=best.

Time frame: Month 6

Population: Two open label arm participants withdrew consent after enrollment. Data not collected on the healthy control arm.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Open Label ArmNumber of Participants With ALS Reversal0 Participants
Secondary

Observed Features (Amplicon Sequence Variants, ASV) of the Oral Microbiome

Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. An amplicon sequence variant (ASV) is any one of the inferred single DNA sequences recovered from a high-throughput analysis of marker genes. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmObserved Features (Amplicon Sequence Variants, ASV) of the Oral MicrobiomeBaseline121.4 ASVs
Open Label ArmObserved Features (Amplicon Sequence Variants, ASV) of the Oral MicrobiomePost-treatment (months 1 and 6 combined)115.1 ASVs
Healthy Control ArmObserved Features (Amplicon Sequence Variants, ASV) of the Oral MicrobiomeBaseline114.4 ASVs
Healthy Control ArmObserved Features (Amplicon Sequence Variants, ASV) of the Oral MicrobiomePost-treatment (months 1 and 6 combined)110.6 ASVs
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Observed Features (Amplicon Sequence Variants, ASVs) of the Stool Microbiome

The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. An amplicon sequence variant (ASV) is any one of the inferred single DNA sequences recovered from a high-throughput analysis of marker genes. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmObserved Features (Amplicon Sequence Variants, ASVs) of the Stool MicrobiomeBaseline146.1 ASVs
Open Label ArmObserved Features (Amplicon Sequence Variants, ASVs) of the Stool MicrobiomePost-treatment (months 1 and 6 combined)148.2 ASVs
Healthy Control ArmObserved Features (Amplicon Sequence Variants, ASVs) of the Stool MicrobiomeBaseline145.7 ASVs
Healthy Control ArmObserved Features (Amplicon Sequence Variants, ASVs) of the Stool MicrobiomePost-treatment (months 1 and 6 combined)146.8 ASVs
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Pielou's Evenness Index of the Oral Microbiome

Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. Pielou's evenness is an index that measures diversity along with species richness. While species richness is the number of different species in a given area, evenness is the count of individuals of each species in an area. A calculated value of Pielou's evenness ranges from 0 (no evenness) to 1 (complete evenness). Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmPielou's Evenness Index of the Oral MicrobiomeBaseline0.69 Pielou's evenness index
Open Label ArmPielou's Evenness Index of the Oral MicrobiomePost-treatment (months 1 and 6 combined)0.69 Pielou's evenness index
Healthy Control ArmPielou's Evenness Index of the Oral MicrobiomeBaseline0.69 Pielou's evenness index
Healthy Control ArmPielou's Evenness Index of the Oral MicrobiomePost-treatment (months 1 and 6 combined)0.70 Pielou's evenness index
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Pielou's Evenness Index of the Stool Microbiome

The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Pielou's evenness is an index that measures diversity along with species richness. While species richness is the number of different species in a given area, evenness is the count of individuals of each species in an area. A calculated value of Pielou's evenness ranges from 0 (no evenness) to 1 (complete evenness). Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmPielou's Evenness Index of the Stool MicrobiomeBaseline0.72 Pielou's evenness index
Open Label ArmPielou's Evenness Index of the Stool MicrobiomePost-treatment (months 1 and 6 combined)0.73 Pielou's evenness index
Healthy Control ArmPielou's Evenness Index of the Stool MicrobiomeBaseline0.74 Pielou's evenness index
Healthy Control ArmPielou's Evenness Index of the Stool MicrobiomePost-treatment (months 1 and 6 combined)0.73 Pielou's evenness index
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Retention as Measured by the Number of Participants Who Completed the 6 Month Study Visit

The percentage of enrolled participants who completed the 6 month study visit.

Time frame: month 6

Population: Data not collected on the healthy control arm.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Open Label ArmRetention as Measured by the Number of Participants Who Completed the 6 Month Study Visit35 Participants
Secondary

Shannon Diversity Index of the Oral Microbiome

Comparing the changes in the saliva microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. Data will be compared within subjects with ALS to assess possible changes over the length of the study and identify microbial correlates of disease progression. The Shannon diversity index takes into account the number of species living in a habitat (richness) and their relative abundance (evenness). The minimum value is 0, which indicates no diversity (only one species is found). There is no upper limit to the index; the maximum value occurs when all species have the same number of individuals. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmShannon Diversity Index of the Oral MicrobiomeBaseline4.7 Shannon diversity index
Open Label ArmShannon Diversity Index of the Oral MicrobiomePost-treatment (months 1 and 6 combined)4.7 Shannon diversity index
Healthy Control ArmShannon Diversity Index of the Oral MicrobiomeBaseline4.7 Shannon diversity index
Healthy Control ArmShannon Diversity Index of the Oral MicrobiomePost-treatment (months 1 and 6 combined)4.7 Shannon diversity index
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Shannon Diversity Index of the Stool Microbiome

The microbiome of study participants will be analyzed in stool samples at enrollment, week 4 and month 6 visits. Changes will be compared in the stool microbiome over time in patients with ALS on Theracurmin to the changes observed in untreated healthy controls. The Shannon diversity index takes into account the number of species living in a habitat (richness) and their relative abundance (evenness). The minimum value is 0, which indicates no diversity (only one species is found). There is no upper limit to the index; the maximum value occurs when all species have the same number of individuals. Baseline was compared to post-treatment samples from months 1 and 6 analyzed together.

Time frame: Baseline, month 1, month 6

Population: Participants with samples collected. Post-treatment samples from months 1 and 6 were analyzed together.

ArmMeasureGroupValue (MEAN)
Open Label ArmShannon Diversity Index of the Stool MicrobiomeBaseline5.1 Shannon diversity index
Open Label ArmShannon Diversity Index of the Stool MicrobiomePost-treatment (months 1 and 6 combined)5.2 Shannon diversity index
Healthy Control ArmShannon Diversity Index of the Stool MicrobiomeBaseline5.3 Shannon diversity index
Healthy Control ArmShannon Diversity Index of the Stool MicrobiomePost-treatment (months 1 and 6 combined)5.2 Shannon diversity index
Comparison: Open Label Arm participant samples from baseline, month 1, and month 6.p-value: >0.05Kruskal-Wallis
Secondary

Total Number of Adverse Events as Measured by Patient Reporting

Adverse and serious adverse events will be recorded throughout the study.

Time frame: up to 6 months

Population: Two open label arm participants withdrew consent after enrollment. Data not collected on the healthy control arm.

ArmMeasureValue (NUMBER)
Open Label ArmTotal Number of Adverse Events as Measured by Patient Reporting25 adverse events

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026