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Comparison · NCT03854019-deaths

Dextromethorphan/Quinidine 20mg/10mg (DM/Q 20mg/10mg) vs Placebo: deaths from any cause

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

2 sourcestrial-comparisons-2026-03-23-0.1.0

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ConductScience Library. Dextromethorphan/Quinidine 20mg/10mg (DM/Q 20mg/10mg) vs Placebo: deaths from any cause. Trial comparisons, record NCT03854019-deaths. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT03854019-deaths

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Measures6

Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.

MeasureValue95% interval, lower95% interval, upperMethodNote
Risk in group 1000.161wilson
Risk in group 2000.161wilson
Risk difference, group 1 minus group 20-0.1610.161newcombe hybrid score
Risk ratio, group 1 over group 2loga group has no participants with the outcome
Odds ratio, group 1 over group 2loga cell of the two-by-two table is zero
Number needed to harmfrom the risk difference intervalthe two groups' risks are equal

Groups2

Group 2 names the comparator: placebo.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Dextromethorphan/Quinidine 20mg/10mg (DM/Q 20mg/10mg)Dextromethorphan/quinidine (DM/Q) 20mg/10mg one capsule once daily for 1 week, followed by DM/Q 20mg /10 mg twice daily for subsequent 4 weeks, and finally DM/Q 20mg/10mg once daily for 7days.020EG000
Group 2PlaceboPlacebo one capsule once daily for 1 week, followed by placebo twice daily for subsequent 4 weeks, and finally placebo once daily for 7days.020EG001

Harm

What it counts
Total, all-cause mortality
Time frame
13 weeks

Source ClinicalTrials.gov

Trial

Title
Evaluating the Efficacy of Dextromethorphan/Quinidine in Treating Irritability in Huntington's Disease
NCT number
NCT03854019
Phases
PHASE3
Conditions
Huntington Disease, Irritability
Interventions
Dextromethorphan/quinidine 20mg/10mg (DM/Q 20mg/10mg), Placebo
Lead sponsor
The University of Texas Health Science Center, Houston
Results first posted
2024-01-05

Source ClinicalTrials.gov

Source

Release
trial-comparisons-2026-03-23-0.1.0
Release manifest SHA-256
f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
AACT copy
2026-03-23
Tables read
outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet

Source ClinicalTrials.gov

Sources 2

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.

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