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Trial · NCT01369498

Efficacy and Safety of Simtuzumab in Adults With Primary, Post Polycythemia Vera or Post Essential Thrombocythemia Myelofibrosis

NCT01369498, Phase 2, Completed, Gilead Sciences; results first posted 2020-07-01

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Efficacy and Safety of Simtuzumab in Adults With Primary, Post Polycythemia Vera or Post Essential Thrombocythemia Myelofibrosis. Trials, record NCT01369498. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01369498

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Trial

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

Title
Efficacy and Safety of Simtuzumab in Adults With Primary, Post Polycythemia Vera or Post Essential Thrombocythemia Myelofibrosis
NCT number
NCT01369498
Status
Completed
Phases
Phase 2
Enrollment
54 participants, actual
Lead sponsor
Gilead Sciences
Conditions
Myelofibrosis
Interventions
Simtuzumab, Ruxolitinib
First posted
2011-06-09
Last updated
2020-07-01
Results first posted
2020-07-01

Source ClinicalTrials.gov

Registered outcomes6

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

ListOutcomeTime frameDescription
PrimaryRate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreBaseline; Week 24
Overall response for the study drug is defined by the reduction in bone marrow fibrosis score which is on a scale of 0-3 where 0 indicates the scattered linear reticulin with no fiber intersections representing normal marrow and 3 indicates dense increase in reticulin fibrosis with fiber intersections, often with osteosclerosis. Reduction from baseline of score indicates improvement in clinical condition.
SecondaryRate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Baseline; Weeks 12, 24 and any time post baseline (enrollment up to 94 weeks)
Overall response for the study drug was defined by the rate of clinical improvement in hemoglobin, platelet or ANC. Clinical improvement in hemoglobin was defined as a ≥ 2 g/dL increase from baseline in hemoglobin level and transfusion independent (absence of red blood cell (RBC) transfusions in prior 8 weeks and applicable only for participants with baseline hemoglobin level of \< 10 g/dL); clinical improvement in platelets was defined as a ≥ 100% increase from baseline in platelet count and an absolute platelet count of ≥ 50 x 10\^9/L (applicable only for participants with baseline platelet count \< 50 x 10\^9/L); clinical improvement in ANC is defined as a ≥ 100% increase from baseline in ANC and an ANC of ≥ 0.5 x 10\^9/L (applicable only for participants with baseline ANC \< 1 x 10\^9/L).
SecondaryPercentage of Participants With Adverse Events (AEs)First dose date up to the last dose date (maximum: 94 weeks) plus 28 days
SecondaryChange From Baseline in Myelofibrosis Symptoms Assessment ScoreBaseline; Days 43 and 85 of Cycles 1-7 (cycle=12 weeks)
Myelofibrosis symptom assessment was performed using myeloproliferative neoplasm symptoms assessment form (MPN-SAF) which is a 27-item questionnaire to address symptom burden and quality of life. The form consists of 27 questions which are scored on a scale of 0-10 by participants based on how symptoms are affecting them, where 0 indicates less symptoms while 10 indicated more severe symptoms and greater inactivity. The MPN-SAF score was calculated at each visit for each participant as an average of the scales for each question and all answered questions. If the number of questions not answered at 1 visit was \> 10, then the MPN-SAF score for that visit was taken as missing. A negative change from Baseline indicated improvement.
SecondaryChange From Baseline in Cytokine LevelsBaseline; Week 24Biomarker samples were collected to evaluate the effects of SIM treatment on markers of serum and plasma cytokines.
SecondaryPercentage of Participants With Anti-Simtuzumab Antibody FormationBaseline; Day 85 of Cycles 1 to 5 (cycle=12 weeks)Blood samples were collected for the presence of anti-SIM antibodies which was determined using a validated electro-chemiluminescent (ECL) assay screening test.

Outcomes6

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYRate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreBaseline; Week 24
The Per Protocol Analysis Set included participants who were randomized, received at least 1 dose of study drug, did not violate any major entry criteria, and had at least 80% adherence with study drug.
percentage of participantsNUMBER
SECONDARYRate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Baseline; Weeks 12, 24 and any time post baseline (enrollment up to 94 weeks)Participants in Per Protocol Analysis Set with available data were analyzed.percentage of participantsNUMBER
SECONDARYPercentage of Participants With Adverse Events (AEs)First dose date up to the last dose date (maximum: 94 weeks) plus 28 daysThe Safety Analysis Set included participants who were randomized and received at least 1 dose of study drugpercentage of participantsNUMBER
SECONDARYChange From Baseline in Myelofibrosis Symptoms Assessment ScoreBaseline; Days 43 and 85 of Cycles 1-7 (cycle=12 weeks)Participants in the Per Protocol Analysis Set with available data were analyzed.score on a scaleMEAN
SECONDARYChange From Baseline in Cytokine LevelsBaseline; Week 24The cytokine analysis was not performed.
SECONDARYPercentage of Participants With Anti-Simtuzumab Antibody FormationBaseline; Day 85 of Cycles 1 to 5 (cycle=12 weeks)Participants in Safety Analysis Set with available data were analyzed.Percentage of participantsNUMBER

Results by group114

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

OutcomeGroupCategoryValueSpreadUnits
Rate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreStage 1: SIM 200 mg090% Confidence Interval 0.0 to 23.8percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreStage 1: SIM 700 mg16.790% Confidence Interval 3.0 to 43.8percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreStage 2: SIM 200 mg+Ruxolitinib6.790% Confidence Interval 0.3 to 27.9percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Reduction at Week 24 From Baseline in the Bone Marrow Fibrosis ScoreStage 2: SIM 700 mg+Ruxolitinib13.390% Confidence Interval 2.4 to 36.3percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 1: SIM 200 mgWeek 12090% Confidence Interval 0.0 to 25.9percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 1: SIM 700 mgWeek 12090% Confidence Interval 0.0 to 25.9percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 2: SIM 200 mg+RuxolitinibWeek 12090% Confidence Interval 0.0 to 28.3percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 2: SIM 700 mg+RuxolitinibWeek 12090% Confidence Interval 0.0 to 25.9percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 1: SIM 200 mgWeek 24090% Confidence Interval 0.0 to 25.9percentage of participants
Rate of Clinical Response as Defined by the Percentage of Participants With Improvement in Hemoglobin, Platelet, or Absolute Neutrophil Count (ANC)Stage 1: SIM 700 mgWeek 24090% Confidence Interval 0.0 to 25.9percentage of participants

Participant flow12

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDStage 1: SIM 200 mg12
Overall StudySTARTEDStage 1: SIM 700 mg12
Overall StudySTARTEDStage 2: SIM 200 mg+Ruxolitinib15
Overall StudySTARTEDStage 2: SIM 700 mg+Ruxolitinib15
Overall StudyCOMPLETEDStage 1: SIM 200 mg0
Overall StudyCOMPLETEDStage 1: SIM 700 mg0
Overall StudyCOMPLETEDStage 2: SIM 200 mg+Ruxolitinib0
Overall StudyCOMPLETEDStage 2: SIM 700 mg+Ruxolitinib0
Overall StudyNOT COMPLETEDStage 1: SIM 200 mg12
Overall StudyNOT COMPLETEDStage 1: SIM 700 mg12

Adverse events1,208

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersStage 1: SIM 200 mg212
otherAnaemiaBlood and lymphatic system disordersStage 1: SIM 700 mg212
otherAnaemiaBlood and lymphatic system disordersStage 2: SIM 200 mg+Ruxolitinib515
otherAnaemiaBlood and lymphatic system disordersStage 2: SIM 700 mg+Ruxolitinib415
otherFebrile neutropeniaBlood and lymphatic system disordersStage 1: SIM 200 mg212
otherFebrile neutropeniaBlood and lymphatic system disordersStage 1: SIM 700 mg012
otherFebrile neutropeniaBlood and lymphatic system disordersStage 2: SIM 200 mg+Ruxolitinib015
otherFebrile neutropeniaBlood and lymphatic system disordersStage 2: SIM 700 mg+Ruxolitinib015
otherLymphadenopathyBlood and lymphatic system disordersStage 1: SIM 200 mg112
otherLymphadenopathyBlood and lymphatic system disordersStage 1: SIM 700 mg012

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityStage 1: SIM 200 mg012
Total, all-cause mortalityStage 1: SIM 700 mg112
Total, all-cause mortalityStage 2: SIM 200 mg+Ruxolitinib115
Total, all-cause mortalityStage 2: SIM 700 mg+Ruxolitinib015
Total, other adverse eventsStage 1: SIM 200 mg1212
Total, other adverse eventsStage 1: SIM 700 mg1212
Total, other adverse eventsStage 2: SIM 200 mg+Ruxolitinib1515
Total, other adverse eventsStage 2: SIM 700 mg+Ruxolitinib1515
Total, serious adverse eventsStage 1: SIM 200 mg812
Total, serious adverse eventsStage 1: SIM 700 mg112

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

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/NCT01369498

GET https://conductscience.org/api/trials/v1/NCT01369498/results?page=2