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Comparison · NCT02725528-5041a0e4

Collagenase Injection vs Limited Palmar Fasciectomy: Recurrence Rates

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. Collagenase Injection vs Limited Palmar Fasciectomy: Recurrence Rates. Trial comparisons, record NCT02725528-5041a0e4. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02725528-5041a0e4

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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 10.4290.1580.75wilson
Risk in group 20.1110.01990.435wilson
Risk difference, group 1 minus group 20.317-0.1040.651newcombe hybrid score
Risk ratio, group 1 over group 23.860.50329.6log
Odds ratio, group 1 over group 260.46377.7log
Number needed to treat, for one more participant with the outcome on Collagenase Injection than on Limited Palmar Fasciectomy3.15from the risk difference intervalthe interval includes no difference

Groups2

Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.

GroupTitleDescriptionWith the outcomeAnalysedClinicalTrials.gov code
Group 1Collagenase Injection
This procedure will be performed either in a minor procedure room or the hand clinic as per surgeon's routine practice. Collagenase will be administered with or without local anesthesia. As this is a pragmatic study there may be more than one digit injected at a time just as surgery occurs on more than one digit at a time. A recently published study by Gaston et al confirmed that two concurrent injections of collagenase to 2 affected joints in the same hand are generally well tolerated and the frequency of most adverse events (AEs) is similar to those reported in studies that use single sequential injections.~collagenase injection: injection
37OG000
Group 2Limited Palmar Fasciectomy
The Dupuytren's cord will be excised under local anesthesia in a minor procedure room setting or main operating room under local or general anesthetic depending on the complexity of the disease and the surgeon's routine. As this is a pragmatic study comparison of collagenase injections (novel intervention) to limited palmar fasciectomy as it is actually presently performed in all settings academic or community (local in minor room or general/local anesthetic in the main operating room) will be examined. Surgery will be performed according to the operating surgeon's preferred technique i.e. zig-zag Brunner incision or straight incision with z-plasty closure of the skin.~limited palmar fasciectomy: surgery
19OG001

Outcome

Type
SECONDARY
Title
Recurrence Rates
Description
Reccurence was measured as whether or not participants received a repeat diagnosis of Dupuytren's disease with loss of finger extension at the site of prior intervention and underwent palmar fasciectomy (following the collagenase injection or as a revision operation) after initial study treatment. The time horizon for recurrence was between 1-4 years post initial study treatment. Outcome was dichotomous (i.e., recurrence; yes or no).
Time frame
1-4 years
Population

Source ClinicalTrials.gov

Trial

Title
Evaluation of Xiaflex: Trial of Effectivenss iN Dupuytren's
NCT number
NCT02725528
Phases
PHASE3
Conditions
Dupuytren's Disease
Interventions
collagenase injection, limited palmar fasciectomy
Lead sponsor
McMaster University
Results first posted
2023-07-18

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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