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Trial · NCT00931606

Study of Sotatercept for the Treatment of Chemotherapy Induced Anemia in Patients With Metastatic Breast Cancer (MK-7962-012)

NCT00931606, Phase 2, Terminated, Merck Sharp & Dohme LLC; results first posted 2023-09-13

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study of Sotatercept for the Treatment of Chemotherapy Induced Anemia in Patients With Metastatic Breast Cancer (MK-7962-012). Trials, record NCT00931606. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00931606

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Trial

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

Title
Study of Sotatercept for the Treatment of Chemotherapy Induced Anemia in Patients With Metastatic Breast Cancer (MK-7962-012)
NCT number
NCT00931606
Status
Terminated
Phases
Phase 2
Enrollment
30 participants, actual
Lead sponsor
Merck Sharp & Dohme LLC
Conditions
Chemotherapy Induced Anemia
Interventions
Sotatercept, Placebo
First posted
2009-07-02
Last updated
2023-09-13
Results first posted
2023-09-13
Limitations and caveats
This is an acquired study. No restrictions were imposed on time on current chemotherapy prior to study entry, therefore PFS could have gone beyond the study duration. The time from start of current chemotherapy could have occurred prior to study start and collected as prior anticancer therapy, therefore the upper limit of the confidence interval in the Sotatercept 0.5 mg/kg arm, 1791.0 days, didn't exceed the timeframe of 281 days after study start.

Source ClinicalTrials.gov

Registered outcomes22

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

ListOutcomeTime frameDescription
PrimaryPercentage of Participants Who Achieved a Hematopoietic ResponseBaseline and Up to ~145 Days
Hematopoietic response rate is defined as the percentage of participants who had increase in hemoglobin concentration of ≥ 1 g/dL relative to baseline for 28 consecutive days during the treatment period including up to 2 months after the last dose of study treatment in the absence of red blood cell (RBC) transfusion or treatment with an erythropoiesis-stimulating agent (ESA). The percentage of participants who achieved hematopoietic response is presented.
SecondaryNumber of Participants Who Experienced an Adverse Event (AE)Up to ~175 Days
An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who experienced AEs is reported.
SecondaryNumber of Participants Who Discontinued Study Intervention Due to an Adverse EventUp to ~85 Days
An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants discontinuing study intervention due to AEs is reported.
SecondaryPercentage of Participants Achieving an Increase From Baseline Hemoglobin of ≥ 2 g/dLBaseline and Up to ~145 Days
Percentage of participants achieving an increase from baseline hemoglobin of ≥ 2 g/dL for 28 consecutive days during the treatment period and up to 2 months after the last dose of study treatment in the absence of RBC transfusion or treatment with an ESA. The percentage of participants achieving an increase from baseline hemoglobin of ≥ 2 g/dL for 28 consecutive days is presented.
SecondaryPercentage of Participants Achieving an Increase From Baseline Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 Days
Percentage of participants achieving hemoglobin ≥ 11 g/dL for 28 consecutive days during the treatment period and up to 2 months after the last dose of study treatment in the absence of RBC transfusion or treatment with an ESA. The percentage of participants achieving an increase from baseline hemoglobin of ≥ 11 g/dL for 28 consecutive days is presented.
SecondaryPercentage of Participants Achieving an Increase From Baseline Hemoglobin of ≥2 g/dL and/or Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 Days
Percentage of participants achieving an increase from baseline hemoglobin of ≥ 2 g/dL and/or hemoglobin ≥ 11 g/dL for 28 consecutive days during the treatment period and up to 2 months after the last dose of study treatment in the absence of RBC transfusion or treatment with an ESA. The percentage of participants achieving an increase from baseline hemoglobin of ≥ 2 g/dL and/or hemoglobin ≥ 11 g/dL for 28 consecutive days is presented.
SecondaryDuration of Hematopoietic Response for Hemoglobin ≥ 1 g/dLBaseline and Up to ~145 Days
Duration of hematopoietic response is defined as the time period from the first time hemoglobin increases at least ≥ 1 g/dL from baseline to the last time there is hemoglobin ≥ 1 g/dL increase from baseline. Duration of response is only calculated for a responder and will be at least 28 days. The duration of response is only calculated for a patient who meets the primary efficacy endpoint. The data for duration of response for ≥ 1 g/dL from baseline is presented.
SecondaryDuration of Hematopoietic Response for Hemoglobin ≥ 2 g/dLBaseline and Up to ~145 Days
Duration of hematopoietic response is defined as the time period from the first time hemoglobin increases at least ≥ 2 g/dL from baseline to the last time there is hemoglobin ≥ 2 g/dL increase from baseline. Duration of response is only calculated for a responder and will be at least 28 days. The duration of response is only calculated for a patient who meets the primary efficacy endpoint. The data for duration of response for hemoglobin ≥ 2 g/dL from baseline is presented.
SecondaryDuration of Hematopoietic Response for Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 Days
Duration of hematopoietic response is defined as the time period from the first time hemoglobin increases at least ≥ 11 g/dL from baseline to the last time there is hemoglobin ≥ 11 g/dL increase from baseline. Duration of response is only calculated for a responder and will be at least 28 days. The duration of response is only calculated for a patient who meets the primary efficacy endpoint. The data for duration of response for hemoglobin ≥ 11 g/dL from baseline is presented.
SecondaryDuration of Hematopoietic Response for Hemoglobin Increases ≥ 1 g/dL and/or Hemoglobin Concentration ≥ 11 g/dLBaseline and Up to ~145 Days
Duration of hematopoietic response is defined as the time period the first time hemoglobin increases ≥ 1 g/dL and/or hemoglobin concentration is ≥ 11 g/dL from baseline to the last time when the same response is maintained. The data for duration of response for hemoglobin ≥ 1 g/dL and/or hemoglobin concentration ≥ 11 g/dL from baseline is presented.

Outcomes22

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants Who Achieved a Hematopoietic ResponseBaseline and Up to ~145 DaysAll randomized participants who have confirmed CIA, received at least one dose of study intervention and on study intervention for at least 2 months (57 days).Percentage of ParticipantsNUMBER
SECONDARYNumber of Participants Who Experienced an Adverse Event (AE)Up to ~175 DaysAll participants who received at least one dose of study intervention.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants Who Discontinued Study Intervention Due to an Adverse EventUp to ~85 DaysAll participants who received at least one dose of study intervention.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage of Participants Achieving an Increase From Baseline Hemoglobin of ≥ 2 g/dLBaseline and Up to ~145 DaysAll randomized participants who have confirmed CIA, received at least one dose of study intervention and on study treatment for at least 2 months (57 days).Percentage of ParticipantsNUMBER
SECONDARYPercentage of Participants Achieving an Increase From Baseline Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 DaysAll randomized participants who have confirmed CIA, received at least one dose of study intervention and on study intervention for at least 2 months (57 days).Percentage of ParticipantsNUMBER
SECONDARYPercentage of Participants Achieving an Increase From Baseline Hemoglobin of ≥2 g/dL and/or Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 DaysAll randomized participants who have confirmed CIA, received at least one dose of study intervention and on study intervention for at least 2 months (57 days).Percentage of ParticipantsNUMBER
SECONDARYDuration of Hematopoietic Response for Hemoglobin ≥ 1 g/dLBaseline and Up to ~145 Days
All randomized participants who have confirmed CIA, received at least one dose of study intervention, on study intervention for at least 2 months (57 days) and had a hematopoietic response of ≥1 g/dL and less than 2 g/dL increase from baseline.
DaysMEAN
SECONDARYDuration of Hematopoietic Response for Hemoglobin ≥ 2 g/dLBaseline and Up to ~145 Days
All randomized participants who have confirmed CIA, received at least one dose of study intervention, on study intervention for at least 2 months (57 days) and had a hematopoietic response of ≥2 g/dL and less than 11 g/dL increase from baseline.
DaysMEAN
SECONDARYDuration of Hematopoietic Response for Hemoglobin ≥ 11 g/dLBaseline and Up to ~145 Days
All randomized participants who have confirmed CIA, received at least one dose of study intervention, on study intervention for at least 2 months (57 days), and had a hematopoietic response of ≥11 g/dL increase from baseline.
DaysMEAN
SECONDARYDuration of Hematopoietic Response for Hemoglobin Increases ≥ 1 g/dL and/or Hemoglobin Concentration ≥ 11 g/dLBaseline and Up to ~145 Days
All randomized participants who have confirmed CIA, received at least one dose of study intervention, on study intervention for at least 2 months (57 days), and had a hematopoietic response of ≥ 1 g/dL and/or hemoglobin concentration is ≥11 g/dL increase from baseline.
DaysMEAN

Results by group250

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

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.1 mg/kgOverall095% Confidence Interval 0 to 52.2Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.3 mg/kgOverall33.395% Confidence Interval 7.5 to 70.1Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.5 mg/kgOverall50.095% Confidence Interval 6.8 to 93.2Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponsePlaceboOverall20.095% Confidence Interval 0.5 to 71.6Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseAll Sotatercept-treated ParticipantsOverall27.895% Confidence Interval 9.7 to 53.5Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.1 mg/kgReceived weekly chemotherapy and showed a response095% Confidence Interval 0 to 84.2Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.3 mg/kgReceived weekly chemotherapy and showed a response095% Confidence Interval 0 to 84.2Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseSotatercept 0.5 mg/kgReceived weekly chemotherapy and showed a response25.095% Confidence Interval 2.5 to 100.0Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponsePlaceboReceived weekly chemotherapy and showed a response2095% Confidence Interval 2.5 to 100.0Percentage of Participants
Percentage of Participants Who Achieved a Hematopoietic ResponseAll Sotatercept-treated ParticipantsReceived weekly chemotherapy and showed a response5.695% Confidence Interval 0.5 to 71.6Percentage of Participants

Participant flow12

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDSotatercept 0.1 mg/kg8
Overall StudySTARTEDSotatercept 0.3 mg/kg10
Overall StudySTARTEDSotatercept 0.5 mg/kg7
Overall StudySTARTEDPlacebo5
Overall StudyCOMPLETEDSotatercept 0.1 mg/kg3
Overall StudyCOMPLETEDSotatercept 0.3 mg/kg1
Overall StudyCOMPLETEDSotatercept 0.5 mg/kg1
Overall StudyCOMPLETEDPlacebo2
Overall StudyNOT COMPLETEDSotatercept 0.1 mg/kg5
Overall StudyNOT COMPLETEDSotatercept 0.3 mg/kg9

Adverse events750

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersSotatercept 0.1 mg/kg181
otherAnaemiaBlood and lymphatic system disordersSotatercept 0.3 mg/kg3103
otherAnaemiaBlood and lymphatic system disordersSotatercept 0.5 mg/kg272
otherAnaemiaBlood and lymphatic system disordersPlacebo151
otherAnaemiaBlood and lymphatic system disordersTotal7307
otherLeukocytosisBlood and lymphatic system disordersSotatercept 0.1 mg/kg080
otherLeukocytosisBlood and lymphatic system disordersSotatercept 0.3 mg/kg0100
otherLeukocytosisBlood and lymphatic system disordersSotatercept 0.5 mg/kg171
otherLeukocytosisBlood and lymphatic system disordersPlacebo050
otherLeukocytosisBlood and lymphatic system disordersTotal1301

Adverse event totals15

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalitySotatercept 0.1 mg/kg18
Total, all-cause mortalitySotatercept 0.3 mg/kg310
Total, all-cause mortalitySotatercept 0.5 mg/kg37
Total, all-cause mortalityPlacebo05
Total, all-cause mortalityTotal730
Total, other adverse eventsSotatercept 0.1 mg/kg68
Total, other adverse eventsSotatercept 0.3 mg/kg710
Total, other adverse eventsSotatercept 0.5 mg/kg77
Total, other adverse eventsPlacebo55
Total, other adverse eventsTotal2530

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
26370220BACKGROUND

Source PubMed

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/NCT00931606

GET https://conductscience.org/api/trials/v1/NCT00931606/registered?page=2