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Trial · NCT03759184

Human IL-15 (rhIL-15) and Obinutuzumab for Relapsed and Refractory Chronic Lymphocyte Leukemia

NCT03759184, Phase 1, Terminated, National Cancer Institute (NCI); results first posted 2022-03-10

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Human IL-15 (rhIL-15) and Obinutuzumab for Relapsed and Refractory Chronic Lymphocyte Leukemia. Trials, record NCT03759184. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03759184

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Trial

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

Title
Human IL-15 (rhIL-15) and Obinutuzumab for Relapsed and Refractory Chronic Lymphocyte Leukemia
NCT number
NCT03759184
Status
Terminated
Phases
Phase 1
Enrollment
1 participants, actual
Lead sponsor
National Cancer Institute (NCI)
Conditions
Leukemia, Lymphocytic, Chronic, B-Cell
Interventions
rhIL-15, rhIL-15, Obinutuzumab
First posted
2018-11-29
Last updated
2022-03-22
Results first posted
2022-03-10

Source ClinicalTrials.gov

Registered outcomes12

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

ListOutcomeTime frameDescription
PrimaryNumber of Treatment-emergent Adverse Events (AEs) Related to Recombinant Human Interleukin-15 (rhIL-15)28 days or 4 weeks (cycle 1)Here is the number of treatment-emergent AEs related to rhIL-15 assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. A treatment emergent AE is defined as
PrimaryNumber of Treatment-emergent Adverse Events (AEs) Related to Obinutuzumab28 days or 4 weeks (cycle 1)Here is the number of treatment-emergent AEs related to Obinutuzumab assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. A treatment emergent AE is defined as
PrimaryNumber of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) Treatment28 days or 4 weeks (cycle 1)
A DLT is defined as a grade 3-5 toxicity if not incontrovertibly due to disease progression or an extraneous cause, and deemed possibly, probably, or definitely related to interleukin-15 by the principal investigator during the first 28 days of treatment. Some exceptions are grade 3 or 4 lymphocytopenia or neutropenia without clinical signs of infection grade 2 or above, grade 3 or 4 thrombocytopenia lasting fewer than 5 days and not associated with bleeding or purpura. Transient (\<24 hours) grade 3 hypoalbuminemia, hypokalemia, hypomagnesemia, hyponatremia or hypophosphatemia which responds to medical intervention. Grade 3 is severe, grade 4 is life-threatening, and grade 5 is death related to adverse event.
PrimaryNumber of Participants With a Grade 3-5 Dose-limiting Toxicity (DLT) With Intravenous (IV) Obinutuzumab Treatment28 days or 4 weeks (cycle 1)
A DLT is defined as a grade 3-5 toxicity if not incontrovertibly due to disease progression or an extraneous cause, and deemed possibly, probably, or definitely related to Obinutuzumab by the principal investigator during the first 28 days of treatment. Some exceptions are grade 3 or 4 lymphocytopenia or neutropenia without clinical signs of infection grade 2 or above, grade 3 or 4 thrombocytopenia lasting fewer than 5 days and not associated with bleeding or purpura. Transient (\<24 hours) grade 3 hypoalbuminemia, hypokalemia, hypomagnesemia, hyponatremia or hypophosphatemia which responds to medical intervention. Grade 3 is severe, grade 4 is life-threatening, and grade 5 is death related to adverse event.
PrimaryMaximum Tolerated Dose (MTD) of Recombinant Human Interleukin-15 (rhIL-15) Administration28 days or 4 weeks (cycle 1)
The MTD is the dose level at which no more than 1 of up to 6 participants experience a dose limiting toxicity (DLT) during the DLT evaluation window, or the dose at which at least 2 of ≤ 6 participants have DLT. A DLT is defined as a grade 3-5 toxicity if not incontrovertibly due to disease progression or an extraneous cause, and deemed possibly, probably, or definitely related to interleukin-15 by the principal investigator during the first 28 days of treatment.
PrimaryMaximum Tolerated Dose (MTD) of Intravenous (IV) Obinutuzumab Treatment28 days or 4 weeks (cycle 1)
The MTD is the dose level at which no more than 1 of up to 6 participants experience a dose limiting toxicity (DLT) during the DLT evaluation window, or the dose at which at least 2 of ≤ 6 participants have DLT. A DLT is defined as a grade 3-5 toxicity if not incontrovertibly due to disease progression or an extraneous cause, and deemed possibly, probably, or definitely related to Obinutuzumab by the principal investigator during the first 28 days of treatment.
SecondaryDuration of Response (DOR)time measurement criteria are met for CR, CRi, or PR whichever is recorded first until the first date that recurrent of progressive disease is objectively documented or death, approximately 27 months
DOR is measured from the time measurement criteria are met for complete response (CR), complete response with incomplete marrow recovery (CRi), or partial response (PR) whichever is recorded first until the first date that recurrent of progressive disease is objectively documented, death, or in the absence of progressive disease (PD), date of last assessment. Response was assessed by the International Workshop on Chronic Lymphocytic Leukemia (iwCLL) 2018 guidelines. Complete response (CR) is disease related constitutional symptoms resolved; partial response (PR) is two criteria from Group A (e.g. lymphadenopathy or liver and/or spleen size) if abnormal at baseline plus one of the criteria from Group B (e.g. platelet count) must be met; complete response with incomplete marrow recovery (CRi) is CR with incomplete hematopoietic recovery; stable disease (SD) is defined as not achieving CR or PR, and PD is development of transformation to a more aggressive histology.
SecondaryOverall Response Rate6 cycles (each cycle is 28 days or 4 weeks)
Overall response is defined as the best response recorded from the start of the treatment until disease progression/recurrence. OS was estimated using the Kaplan-Meier curves and a 95% confidence interval. Response was assessed by the International Workshop on Chronic Lymphocytic Leukemia (iwCLL) 2018 guidelines. Complete response (CR) is disease related constitutional symptoms resolved; Partial response (PR) is two criteria from Group A (e.g. lymphadenopathy or liver and/or spleen size) if abnormal at baseline plus one of the criteria from Group B (e.g. platelet count) must be met, requires the absence of growth factor or transfusion support; Complete response with incomplete marrow recovery (CRi) is CR with incomplete hematopoietic recovery; Stable disease (SD) is defined as not achieving CR or PR, but not fulfilling the criteria for progressive disease (PD); and PD is one criteria from Group A or B are met or development of transformation to a more aggressive histology.
SecondaryEvent-free Survival (EFS)Approximately 8 months
EFS is defined as the duration of time from the date of study enrollment until time of disease lapse, disease progression, alternative therapy for lymphoma given, or death, whichever comes first. EFS was estimated using the Kaplan-Meier curves and a 95% confidence interval. Progression was assessed by the International Workshop on Chronic Lymphocytic Leukemia (iwCLL) 2018 guidelines and is defined as one criterion from Group A (e.g., lymphadenopathy or liver and/or spleen size) or B (e.g., platelet count) are met or development of transformation to a more aggressive histology.
SecondaryOverall Survival (OS)Approximately 27 monthsOS is defined as the date of on-study to the date of death from any cause or last follow up.

Outcomes12

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Treatment-emergent Adverse Events (AEs) Related to Recombinant Human Interleukin-15 (rhIL-15)28 days or 4 weeks (cycle 1)adverse eventsNUMBER
PRIMARYNumber of Treatment-emergent Adverse Events (AEs) Related to Obinutuzumab28 days or 4 weeks (cycle 1)adverse eventsNUMBER
PRIMARYNumber of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) Treatment28 days or 4 weeks (cycle 1)ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYNumber of Participants With a Grade 3-5 Dose-limiting Toxicity (DLT) With Intravenous (IV) Obinutuzumab Treatment28 days or 4 weeks (cycle 1)ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYMaximum Tolerated Dose (MTD) of Recombinant Human Interleukin-15 (rhIL-15) Administration28 days or 4 weeks (cycle 1)This outcome measure was not done. The MTD was not found because the study was closed after \> 1 year of inactivity and only one participant was enrolled.
PRIMARYMaximum Tolerated Dose (MTD) of Intravenous (IV) Obinutuzumab Treatment28 days or 4 weeks (cycle 1)This outcome measure was not done. The MTD was not found because the study was closed after \> 1 year of inactivity and only one participant was enrolled.
SECONDARYDuration of Response (DOR)time measurement criteria are met for CR, CRi, or PR whichever is recorded first until the first date that recurrent of progressive disease is objectively documented or death, approximately 27 monthsMonthsMEDIAN
SECONDARYOverall Response Rate6 cycles (each cycle is 28 days or 4 weeks)ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYEvent-free Survival (EFS)Approximately 8 monthsThere is no confidence interval with 1 sample result.MonthsMEDIAN
SECONDARYOverall Survival (OS)Approximately 27 monthsThere is no full range with 1 sample result.MonthsMEDIAN

Results by group30

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

OutcomeGroupCategoryValueSpreadUnits
Number of Treatment-emergent Adverse Events (AEs) Related to Recombinant Human Interleukin-15 (rhIL-15)Arm 1 - Dose Escalation - Dose Level 10adverse events
Number of Treatment-emergent Adverse Events (AEs) Related to ObinutuzumabArm 1 - Dose Escalation - Dose Level 10adverse events
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 3 Possibly Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 3 Probably Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 3 Definitely Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 4 Possibly Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 4 Probably Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 4 Definitely Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 5 Possibly Related0Participants
Number of Participants With a Grades 3-5 Dose-limiting Toxicity (DLT) of Continuous Intravenous (CIV) Recombinant Human Interleukin-15 (rhIL-15) TreatmentArm 1 - Dose Escalation - Dose Level 1Grade 5 Probably Related0Participants

Participant flow3

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDArm 1 - Dose Escalation - Dose Level 11
Overall StudyCOMPLETEDArm 1 - Dose Escalation - Dose Level 11
Overall StudyNOT COMPLETEDArm 1 - Dose Escalation - Dose Level 10

Adverse events13

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherConstipationGastrointestinal disordersArm 1 - Dose Escalation - Dose Level 1111
otherEar painEar and labyrinth disordersArm 1 - Dose Escalation - Dose Level 1111
otherFatigueGeneral disordersArm 1 - Dose Escalation - Dose Level 1111
otherFeverGeneral disordersArm 1 - Dose Escalation - Dose Level 1113
otherInfusion related reactionInjury, poisoning and procedural complicationsArm 1 - Dose Escalation - Dose Level 1111
otherIrritabilityPsychiatric disordersArm 1 - Dose Escalation - Dose Level 1111
otherNeutrophil count decreasedInvestigationsArm 1 - Dose Escalation - Dose Level 1112
otherParonychiaInfections and infestationsArm 1 - Dose Escalation - Dose Level 1111
otherSinusitisInfections and infestationsArm 1 - Dose Escalation - Dose Level 1111
seriousBone infectionInfections and infestationsArm 1 - Dose Escalation - Dose Level 1111

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityArm 1 - Dose Escalation - Dose Level 101
Total, other adverse eventsArm 1 - Dose Escalation - Dose Level 111
Total, serious adverse eventsArm 1 - Dose Escalation - Dose Level 111

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
32508818DERIVEDPubMed
33883258DERIVEDPubMed

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/NCT03759184

GET https://conductscience.org/api/trials/v1/NCT03759184/results?page=2