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Trial ยท NCT00934544

Controlled Myelofibrosis Study With Oral Janus-associated Kinase (JAK) Inhibitor Treatment-II: The COMFORT-II Trial

NCT00934544, Phase 3, Completed, Novartis Pharmaceuticals; results first posted 2012-05-30

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Controlled Myelofibrosis Study With Oral Janus-associated Kinase (JAK) Inhibitor Treatment-II: The COMFORT-II Trial. Trials, record NCT00934544. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00934544

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Controlled Myelofibrosis Study With Oral Janus-associated Kinase (JAK) Inhibitor Treatment-II: The COMFORT-II Trial
NCT number
NCT00934544
Status
Completed
Phases
Phase 3
Enrollment
219 participants, actual
Lead sponsor
Novartis Pharmaceuticals
Conditions
Myelofibrosis
Interventions
Ruxolitinib, Best Available Therapy (BAT)
First posted
2009-07-08
Last updated
2019-08-19
Other registries' IDs
eudract:2009-009858-24
Results first posted
2012-05-30

Source ClinicalTrials.gov

Registered outcomes11

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 48Baseline, Week 48
The change in spleen volume from baseline to week 48 was measured by magnetic resonance imaging (MRI) (or by computer tomography (CT) for participants unable to undergo MRI) and was calculated only for participants who had an evaluable spleen volume at baseline. The percentage of participants achieving a greater than or equal to 35% reduction in spleen volume from baseline to week 48 was then calculated by treatment group.
SecondaryDuration of Maintenance of Spleen Volume Reduction (Median)Baseline, up to Year 5
DoMSR is defined as the interval between the first spleen volume measurement that is \>=35% reduction from baseline and the first scan that is no longer = 35% reduction AND that is a \>25% increase over nadir. It was evaluated using the Kaplan-Meier estimate for each treatment arm. The analysis was performed only for subjects who achieved greater than 35% reduction in spleen volume.
SecondaryDuration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Baseline, up to Year 5
This is defined as the interval between randomization and date of the first MRI showing a 35% reduction from baseline in spleen volume. The analysis was performed for participants who achieved a 35% reduction in spleen volume.
SecondaryPercentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 24Baseline, Week 24
The change in spleen volume from baseline to week 24 was measured by magnetic resonance imaging (MRI) (or by computer tomography (CT) for participants unable to undergo MRI) and was calculated only for participants who had an evaluable spleen volume at baseline. The percentage of participants achieving a greater than or equal to 35% reduction in spleen volume from baseline to week 24 was then calculated by treatment group.
SecondaryTime to First at Least 35% Reduction in Spleen Volume From Baseline by Treatment (Primary Analysis)Time from randomization and date of the first MRI showing at least 35% reduction from baseline in spleen volume
This is defined as the interval between randomization and date of the first MRI showing at least 35% reduction from baseline in spleen volume. The analysis was performed for participants who achieved a 35% reduction in spleen volume
SecondaryProgression-free Survival (PFS)Time from randomization and the earliest of either increase in spleen volume >=25% from on-study nadir, splenic irradiation, splenectomy, leukemic transformation or deathMedian of time progression free survival (95% CI), years
SecondaryLeukemia-free Survival (LFS)Time from randomization and earliest of either leukemia or death
Time from randomization and earliest of either (1) date of bone marrow blast count of 20% or greater; (2) date of first peripheral blast count of 20% or greater that was subsequently confirmed to sustain for at least 8 weeks; (3) date of death from any cause
SecondaryOverall Survival (OS)From randomization until death from any cause
Defined as the interval between randomization and the date of the bone marrow blast count of 20% or greater OR the date of the first peripheral blast count of 20% or greater that was subsequently confirmed to have been sustained for at least 8 weeks OR the date of death from any cause, whichever occurs first. OS was summarized using Kaplan-Meier estimates for each treatment arm. The estimates were supplemented by tables of number of events and probability estimates at several timepoints
SecondaryPercentage of Participants With Bone Marrow Histomorphology at Week 48 (Primary Analysis)48 weeks
This was noted as fibrosis density and was tabulated by fibrosis grade at baseline and at week 48 (post-baseline). Descriptive statistics (participant percentages) were used. Fibrosis grades: 0 Scattered linear reticulin with no intersections corresponding to normal bone marrow ; 1 Loose network of reticulin with many intersections, especially in perivascular areas; 2 Diffuse and dense increase in reticulin with extensive intersections, occasionally with only focal bundles of collagen and/or focal osteosclerosis; 3 Diffuse and dense increase in reticulin with extensive intersections with coarse bundles of collagen, often associated with significant osteosclerosis
SecondaryBone Marrow HistomorphologyBaseline, once a year
Shift table from baseline to last available postbaseline fibrosis grade by treatment The grade gives an indication of the activity or amount of inflammation and the stage represents the amount of fibrosis or scarring. The grade is assigned a number based on the degree of inflammation, which is usually scored from 0-4 with 0 being no activity and 3 or 4 considered severe activity

Outcomes11

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 48Baseline, Week 48
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. The table included participants with non-missing baseline MRI measurement of spleen volume only.
Percentage of ParticipantsNUMBER
SECONDARYDuration of Maintenance of Spleen Volume Reduction (Median)Baseline, up to Year 5
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. Treatment groups were defined according to the treatment assignment at the time of randomization.
yearsMEDIAN
SECONDARYDuration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Baseline, up to Year 5
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. Treatment groups were defined according to the treatment assignment at the time of randomization.
probability of responseNUMBER
SECONDARYPercentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 24Baseline, Week 24
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. The table included participants with non-missing baseline MRI measurement of spleen volume only.
Percentage of ParticipantsNUMBER
SECONDARYTime to First at Least 35% Reduction in Spleen Volume From Baseline by Treatment (Primary Analysis)Time from randomization and date of the first MRI showing at least 35% reduction from baseline in spleen volumeFull analysis set (FAS)probability of responseNUMBER
SECONDARYProgression-free Survival (PFS)Time from randomization and the earliest of either increase in spleen volume >=25% from on-study nadir, splenic irradiation, splenectomy, leukemic transformation or death
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. Treatment groups were defined according to the treatment assignment at the time of randomization.
yearsMEDIAN
SECONDARYLeukemia-free Survival (LFS)Time from randomization and earliest of either leukemia or death
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. Treatment groups were defined according to the treatment assignment at the time of randomization.
YearsMEDIAN
SECONDARYOverall Survival (OS)From randomization until death from any cause
Full analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria. Treatment groups were defined according to the treatment assignment at the time of randomization.
YearsMEDIAN
SECONDARYPercentage of Participants With Bone Marrow Histomorphology at Week 48 (Primary Analysis)48 weeksFull analysis set (FAS) consisted of all subjects who were randomized and put in strata according to International Working Group for Myelofibrosis Research and Treatment(IWG MRT) prognostic criteria.Percentage of participantsNUMBER
SECONDARYBone Marrow HistomorphologyBaseline, once a year
Full Analysis Set (FAS)~Numbers of Participants Analyzed reflect only those participants who were randomized to either Ruxolitinib or Best Available Therapy and do not count those participants who could have crossed over to Ruxolitinib
participantsNUMBER

Results by group110

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 48Ruxolitinib28.5Percentage of Participants
Percentage of Participants With at Least 35% Reduction in Spleen Volume From Baseline at Week 48Best Available Therapy (BAT)0Percentage of Participants
Duration of Maintenance of Spleen Volume Reduction (Median)Ruxolitinib3.2295% Confidence Interval 1.65 to NAyears
Duration of Maintenance of Spleen Volume Reduction (Median)Best Available Therapy (BAT)NA95% Confidence Interval NA to NAyears
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Ruxolitinib1.0 year0.7295% Confidence Interval .60 to .81probability of response
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Best Available Therapy (BAT)1.0 yearNA95% Confidence Interval NA to NAprobability of response
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Ruxolitinib1.5 years0.6795% Confidence Interval 0.55 to 0.77probability of response
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Best Available Therapy (BAT)1.5 yearsNA95% Confidence Interval NA to NAprobability of response
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Ruxolitinib2.0 years0.6395% Confidence Interval 0.50 to 0.73probability of response
Duration of Maintenance of Spleen Volume Reduction (Kaplan-Meier Estimates)Best Available Therapy (BAT)2.0 yearsNA95% Confidence Interval NA to NAprobability of response

Participant flow27

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Primary Endpoint Analysis (Interim)STARTEDRuxolitinib146
Primary Endpoint Analysis (Interim)STARTEDBest Available Therapy (BAT)73
Primary Endpoint Analysis (Interim)STARTEDRuxolitinib After BAT (Cross-over)0
Primary Endpoint Analysis (Interim)COMPLETEDRuxolitinib91
Primary Endpoint Analysis (Interim)COMPLETEDBest Available Therapy (BAT)31
Primary Endpoint Analysis (Interim)COMPLETEDRuxolitinib After BAT (Cross-over)0
Primary Endpoint Analysis (Interim)NOT COMPLETEDRuxolitinib55
Primary Endpoint Analysis (Interim)NOT COMPLETEDBest Available Therapy (BAT)42
Primary Endpoint Analysis (Interim)NOT COMPLETEDRuxolitinib After BAT (Cross-over)0
Overall Disposition at 5 Year Follow-upSTARTEDRuxolitinib146

Adverse events1,300

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersRuxolitinib Randomized61146
otherAnaemiaBlood and lymphatic system disordersRuxolitinib Randomized + Extension Phase71146
otherAnaemiaBlood and lymphatic system disordersBAT Randomized873
otherAnaemiaBlood and lymphatic system disordersRuxolitinib Cross-over1945
otherLeukocytosisBlood and lymphatic system disordersRuxolitinib Randomized7146
otherLeukocytosisBlood and lymphatic system disordersRuxolitinib Randomized + Extension Phase8146
otherLeukocytosisBlood and lymphatic system disordersBAT Randomized073
otherLeukocytosisBlood and lymphatic system disordersRuxolitinib Cross-over245
otherThrombocytopeniaBlood and lymphatic system disordersRuxolitinib Randomized67146
otherThrombocytopeniaBlood and lymphatic system disordersRuxolitinib Randomized + Extension Phase77146

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityRuxolitinib Randomized
Total, all-cause mortalityRuxolitinib Randomized + Extension Phase
Total, all-cause mortalityBAT Randomized
Total, all-cause mortalityRuxolitinib Cross-over
Total, other adverse eventsRuxolitinib Randomized145146
Total, other adverse eventsRuxolitinib Randomized + Extension Phase145146
Total, other adverse eventsBAT Randomized6473
Total, other adverse eventsRuxolitinib Cross-over4245
Total, serious adverse eventsRuxolitinib Randomized51146
Total, serious adverse eventsRuxolitinib Randomized + Extension Phase85146

Papers7

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
22375970DERIVEDPubMed
23911705DERIVEDPubMed
24056820DERIVEDPubMed
24174625DERIVEDPubMed
26069290DERIVEDPubMed
26380150DERIVEDPubMed
28962635DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
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
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00934544

GET https://conductscience.org/api/trials/v1/NCT00934544/results?page=2