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Trial ยท NCT00324155

Dacarbazine and Ipilimumab vs. Dacarbazine With Placebo in Untreated Unresectable Stage III or IV Melanoma

NCT00324155, Phase 3, Completed, Bristol-Myers Squibb; results first posted 2014-03-10

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Dacarbazine and Ipilimumab vs. Dacarbazine With Placebo in Untreated Unresectable Stage III or IV Melanoma. Trials, record NCT00324155. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00324155

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Trial

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

Title
Dacarbazine and Ipilimumab vs. Dacarbazine With Placebo in Untreated Unresectable Stage III or IV Melanoma
NCT number
NCT00324155
Status
Completed
Phases
Phase 3
Enrollment
681 participants, actual
Lead sponsor
Bristol-Myers Squibb
Conditions
Melanoma
Interventions
Ipilimumab, Placebo, Dacarbazine
First posted
2006-05-10
Last updated
2014-11-03
Results first posted
2014-03-10

Source ClinicalTrials.gov

Registered outcomes13

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

ListOutcomeTime frameDescription
PrimaryOverall Survival (OS)Date of randomization to 37 months through 5-year follow-up and up to approximately 76 months
OS was defined as the time from the date of randomization until the date of death. Analysis of OS was to be done once 416 deaths had occurred (primary endpoint). However, analysis occurred at 414 deaths (February 7, 2011), due to operational timing of the study. Median number of months of OS and associated confidence interval calculated using the method of Brookmeyer and Crowley.
SecondarySurvival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsDate of randomization to 3 years following randomization
The survival rate (percentage of participants alive) was defined as the probability that a participant is alive at 1 year (or 18 months, 2 years, or 3 years) following randomization and was estimated via the Kaplan-Meier method.
SecondaryDisease Control Rate (DCR)First dose to last tumor assessment prior to subsequent therapy at data cutoff for Primary Endpoint (approximately 5 years)
DCR=number whose best overall response (BOR) was partial response (PR), complete response (CR) or stable disease (SD), divided by all randomized participants (unevaluable participants included). Independent review committee assessment. BOR=date of first dose to last tumor assessment prior to subsequent cancer therapy (including tumor resection, excluding palliative local radiotherapy). Modified World Health Organization criteria: CR=disappearance of all lesions; no evidence of progressive disease (PD); PR=50% or more decrease in the sum of products of the longest diameter and greatest perpendicular diameter of all index lesions compared with baseline; SD=neither sufficient decrease to qualify for PR nor sufficient increase to qualify for PD; PD=at least 25% increase in sum of products of all index lesions and/or appearance of any new lesions; nonindex lesions: appearance of any new lesions and/or unequivocal progression of nonindex lesions.
SecondaryMedian Number of Months of Progression-free Survival (PFS)Randomization to date of progression or death to approximately 5 years
PFS=time between randomization and date of progression or death, whichever occurs first. Participants who died without reported prior progression were considered to have progressed on date of death. For those alive and not progressed, PFS was censored on date of last evaluable tumor assessment (TA). Those who have not died and have no recorded postbaseline TA were censored at randomization. Those who died without any recorded postbaseline TA were considered to have progressed on date of death. Evaluation was conducted by both investigator and an independent review committee (IRC), who assessed radiologic imaging studies, photographs of skin lesions, and clinical data. Progressive disease defined using modified criteria of the World Health Organization: demonstration of at least a 25% increase in the sum of products of all index lesions or the appearance of any new lesions. For nonindex lesions: appearance of any new lesions or unequivocal progression of nonindex lesions.
SecondaryProgression-free Survival (PFS) Rate Truncated at Week 12Day 78
PFS rate=probability patient was progression-free at Day 78, calculated as total patients receiving treatment and with an overall response of stable disease (SD), partial response (PR), or complete response (CR) at Week 12, divided by total patients. For those alive and not progressed at or before Week 12, PFS censored on date of last evaluable tumor assessment (TA) at or before Week 12. Those with an assessment of PD prior to Week 12 and subsequent assessment of SD, PR, or CR at Week 12 were called progression-free at Week 12. Those with no recorded postbaseline TA dated on or before Day 109, and who had not died on or before Day 109, were censored at randomization. PD=at least 25% increase in sum of products of all index lesions or appearance of any new lesions. Both an investigator and independent review committee (IRC) assessed radiologic imaging studies, photographs of skin lesions, and clinical data. IRC assessment was considered primary over that of the investigators.
SecondaryBest Overall Response Rate (BORR)First dose to last tumor assessment at data cutoff for primary endpoint (approximately 5 years)
BORR=number with Best Overall Response (BOR) of complete response (CR) or partial response (PR), divided by total number of randomized patients. BOR=date of first dose to the last tumor assessment prior to subsequent cancer therapy (including tumor resection surgery but excluding palliative local radiotherapy for bone lesions). Independent review committee assessment. Modified criteria of the World Health Organization (mWHO): CR=disappearance of all lesions; no evidence of progressive disease; PR=50% or greater decrease in the sum of products of the longest diameter and greatest perpendicular diameter of all index lesions compared with baseline. Immune-related (ir) response criteria (irRC) assess tumor response in patients on immunotherapy: irCR=disappearance of all lesions in 2 consecutive observations at least 4 weeks apart; irPR=50% or greater decrease in total measureable tumor burden compared with peak in 2 observations at least 4 weeks apart.
SecondaryDuration of Response (DOR): Randomized Participants With Response of Complete Response (CR) or Partial Response (PR)Day of CR or PR to day of PD or death up to data cutoff for primary endpoint (approximately 5 years)
DOR defined in those with Best Overall Response (BOR)=CR or PR per independent review committee (IRC) as time between date of response of confirmed CR or PR, whichever occurred first, and date of PD or death. If PR assessed before CR, DOR confirmed at earlier time-point showing PR. Modified criteria of the World Health Organization (mWHO): CR=disappearance of all lesions;no evidence of PD; PR=50% or greater decrease in the sum of products of longest and greatest perpendicular diameters (SPD) of all index lesions compared with baseline. PD=an increase of 25% or greater in SPD of index lesions compared with the smallest recorded sum, or appearance of 1 or more new lesions. Immune-related response criteria (irRC): SD=50% decrease in total measurable tumor burden compared with peak cannot be established nor 25% increase compared with nadir, in absence of unequivocal progression of nonindex lesions. Unconfirmed immune-related (ir) CR, irPR, or irPD=irSD.
SecondaryTime to Response: All Randomized Participants With Response to TreatmentFirst dose to date of BOR up to data cutoff for primary endpoint (approximately 5 years)
Time to response was defined as the time between the first dose of study therapy and the date when measurement criteria were met for Best Overall Response (BOR) of partial response (PR) or complete response (CR), whichever occurred first, per independent review committee. Note that if an overall response of PR occurred before confirmation of CR, the time to response endpoint was not determined by the time that the BOR of CR was shown but rather by the earlier time point showing PR. Modified criteria of the World Health Organization: CR=disappearance of all lesions; no evidence of progressive disease (PD); PR=50% or more decrease in the sum of products of the longest and greatest perpendicular diameters (SPD) of all index lesions compared with baseline; PD=an increase of 25% or greater in the SPD of index lesions compared with the smallest recorded sum, or the appearance of 1 or more new lesions.
SecondaryDuration of Stable Disease (SD): Randomized Participants With Stable DiseaseWeek 12 to date of disease progression or death up to data cutoff for primary endpoint (approximately 5 years)
Duration of SD was defined in those whose Best Overall Response (BOR) was SD, per independent review committee (IRC) as the time between Week 12 and date of progressive disease (PD) or death , whichever occurs first. For those who underwent tumor resection following Week 12 but prior to PD, duration of SD was censored on date of last evaluable tumor assessment (TA) prior to resection. For those with BOR of SD at Week 12, date of PD was used in analysis of duration of SD. For those with BOR=SD who have not subsequently progressed and who remain alive, duration of SD censored on date of last evaluable TA. Modified criteria of the World Health Organization (mWHO): SD=insufficient decrease to qualify for partial response or sufficient increase to qualify for PD; PD=an increase of 25% or more in sum of products of longest diameter and greatest perpendicular diameter of index lesions compared with smallest recorded sum, or appearance of 1 or more new lesions.
SecondaryPercentage of Participants With Brain Metastasis-Free Survival at Time of Data CutoffDate of randomization up to data cutoff for primary endpoint (approximately 5 years)
Brain metastasis-free survival was defined as the time from randomization to the date of progression with a new lesion located in the brain. New brain lesions prior to Week 12 constituted a progression event (unlike main progression-free survival analysis). A participant who dies without documentation of a brain lesion was considered to have progressed with brain metastasis on the date of death. Participants who are free of brain metastasis were censored on the date of their last tumor assessment. An independent review committee evaluated images of participants with clinical symptoms to determine the number of those free of brain metastasis. The brain metastasis-free status was reported as a percent of participants (n/N), where n= participants with metastasis-free brains at data cutoff for the Primary Endpoint and N= randomized participants. A 2-sided Clopper and Pearson confidence interval was performed.

Outcomes13

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

TypeOutcomeTime framePopulationUnitsMeasured as
SECONDARYSurvival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsDate of randomization to 3 years following randomizationAll participants who were randomized to a treatment groupPercentage of participantsNUMBER
SECONDARYDisease Control Rate (DCR)First dose to last tumor assessment prior to subsequent therapy at data cutoff for Primary Endpoint (approximately 5 years)All participants who were randomized to a treatment groupPercentage of participantsNUMBER
SECONDARYMedian Number of Months of Progression-free Survival (PFS)Randomization to date of progression or death to approximately 5 yearsAll participants who were randomized to a treatment groupMonthsMEDIAN
SECONDARYProgression-free Survival (PFS) Rate Truncated at Week 12Day 78All participants who were randomized to a treatment groupPercentage of participantsNUMBER
SECONDARYBest Overall Response Rate (BORR)First dose to last tumor assessment at data cutoff for primary endpoint (approximately 5 years)All participants who were randomized to a treatment groupPercentage of participantsNUMBER
SECONDARYDuration of Response (DOR): Randomized Participants With Response of Complete Response (CR) or Partial Response (PR)Day of CR or PR to day of PD or death up to data cutoff for primary endpoint (approximately 5 years)All participants who were randomized to a treatment group and had a response of CR, PR, irCR, or irPR. n=number of participants who responded by mWHO criteria and irRC.MonthsMEDIAN
SECONDARYTime to Response: All Randomized Participants With Response to TreatmentFirst dose to date of BOR up to data cutoff for primary endpoint (approximately 5 years)All participants who were randomized to a treatment group and who had a response of CR or PRMonthsMEDIAN
SECONDARYDuration of Stable Disease (SD): Randomized Participants With Stable DiseaseWeek 12 to date of disease progression or death up to data cutoff for primary endpoint (approximately 5 years)All participants who were randomized to a treatment group and had SDMonthsMEDIAN
SECONDARYPercentage of Participants With Brain Metastasis-Free Survival at Time of Data CutoffDate of randomization up to data cutoff for primary endpoint (approximately 5 years)All participants who were randomized to a treatment groupPercentage of participantsNUMBER
PRIMARYOverall Survival (OS)Date of randomization to 37 months through 5-year follow-up and up to approximately 76 months
All randomized participants whose survival follow-up was current (defined as having died or last known alive date occurring on or after the data cutoff date, which was when a total of 414 deaths occurred).
MonthsMEDIAN

Results by group88

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

OutcomeGroupCategoryValueSpreadUnits
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsIpilimumab and DacarbazineAt 1 year47.395% Confidence Interval 41.0 to 53.6Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsPlacebo and DacarbazineAt 1 year36.395% Confidence Interval 30.4 to 42.4Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsIpilimumab and DacarbazineAt 18 months35.695% Confidence Interval 29.7 to 41.6Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsPlacebo and DacarbazineAt 18 months26.195% Confidence Interval 20.7 to 31.6Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsIpilimumab and DacarbazineAt 2 years28.595% Confidence Interval 22.9 to 34.2Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsPlacebo and DacarbazineAt 2 years17.995% Confidence Interval 13.3 to 22.8Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsIpilimumab and DacarbazineAt 3 years20.895% Confidence Interval 15.7 to 26.1Percentage of participants
Survival Rate at 1 Year, 18 Months, 2 Years, and 3 YearsPlacebo and DacarbazineAt 3 years12.295% Confidence Interval 8.2 to 16.5Percentage of participants
Disease Control Rate (DCR)Ipilimumab and Dacarbazine33.2Percentage of participants
Disease Control Rate (DCR)Placebo and Dacarbazine30.2Percentage of participants

Participant flow24

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

PeriodMilestoneGroupParticipantsUnits counted
Enrolled and RandomizedSTARTEDIpilimumab and Dacarbazine250
Enrolled and RandomizedSTARTEDPlacebo and Dacarbazine252
Enrolled and RandomizedCOMPLETEDIpilimumab and Dacarbazine247
Enrolled and RandomizedCOMPLETEDPlacebo and Dacarbazine251
Enrolled and RandomizedNOT COMPLETEDIpilimumab and Dacarbazine3
Enrolled and RandomizedNOT COMPLETEDPlacebo and Dacarbazine1
Received Treatment in Induction PhaseSTARTEDIpilimumab and Dacarbazine247
Received Treatment in Induction PhaseSTARTEDPlacebo and Dacarbazine251
Received Treatment in Induction PhaseCOMPLETEDIpilimumab and Dacarbazine45
Received Treatment in Induction PhaseCOMPLETEDPlacebo and Dacarbazine54

Adverse events468

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherBlood alkaline phosphatase increasedInvestigations10 mg/kg Ipilimumab + Dacarbazine16247
otherBlood alkaline phosphatase increasedInvestigationsPlacebo + Dacarbazine9251
otherNauseaGastrointestinal disorders10 mg/kg Ipilimumab + Dacarbazine119247
otherNauseaGastrointestinal disordersPlacebo + Dacarbazine120251
otherNeutropeniaBlood and lymphatic system disorders10 mg/kg Ipilimumab + Dacarbazine16247
otherNeutropeniaBlood and lymphatic system disordersPlacebo + Dacarbazine14251
otherPruritusSkin and subcutaneous tissue disorders10 mg/kg Ipilimumab + Dacarbazine73247
otherPruritusSkin and subcutaneous tissue disordersPlacebo + Dacarbazine22251
otherWeight decreasedInvestigations10 mg/kg Ipilimumab + Dacarbazine27247
otherWeight decreasedInvestigationsPlacebo + Dacarbazine13251

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortality10 mg/kg Ipilimumab + Dacarbazine
Total, all-cause mortalityPlacebo + Dacarbazine
Total, other adverse events10 mg/kg Ipilimumab + Dacarbazine220247
Total, other adverse eventsPlacebo + Dacarbazine218251
Total, serious adverse events10 mg/kg Ipilimumab + Dacarbazine170247
Total, serious adverse eventsPlacebo + Dacarbazine121251

Papers3

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
21639810DERIVEDPubMed
25667295DERIVEDPubMed
25713437DERIVEDPubMed

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 comparisons1

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

Comparison
10 mg/kg Ipilimumab + Dacarbazine vs Placebo + Dacarbazine: serious adverse events

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/NCT00324155

GET https://conductscience.org/api/trials/v1/NCT00324155/results?page=2