Trial Outcomes & Findings for Daratumumab in Treating Transplant-Eligible Patients With Multiple Myeloma (NCT NCT03477539)

NCT ID: NCT03477539

Last Updated: 2026-05-05

Results Overview

MRD negative response after ASCT is defined as achievement of MRD negative status in the bone marrow by flow cytometry (multiparameter flow cytometry \[MPF\]) at the day 100 post ASCT visit. The proportion of successes will be estimated by the number of successes divided by the total number of evaluable patients. 95 percent confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

49 participants

Primary outcome timeframe

100 days

Results posted on

2026-05-05

Participant Flow

Participant milestones

Participant milestones
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Overall Study
STARTED
49
Overall Study
COMPLETED
46
Overall Study
NOT COMPLETED
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Overall Study
Ineligible
3

Baseline Characteristics

Daratumumab in Treating Transplant-Eligible Patients With Multiple Myeloma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Age, Continuous
61.7 years
STANDARD_DEVIATION 8.17 • n=54 Participants
Sex: Female, Male
Female
11 Participants
n=54 Participants
Sex: Female, Male
Male
35 Participants
n=54 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=54 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
42 Participants
n=54 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=54 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=54 Participants
Race (NIH/OMB)
Asian
0 Participants
n=54 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=54 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=54 Participants
Race (NIH/OMB)
White
42 Participants
n=54 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=54 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=54 Participants

PRIMARY outcome

Timeframe: 100 days

MRD negative response after ASCT is defined as achievement of MRD negative status in the bone marrow by flow cytometry (multiparameter flow cytometry \[MPF\]) at the day 100 post ASCT visit. The proportion of successes will be estimated by the number of successes divided by the total number of evaluable patients. 95 percent confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Rate of Minimal Residual Disease (MRD) Negative Response After Autologous Stem Cell Transplantation (ASCT)
0.652 proportion of participants
Interval 0.505 to 0.779

SECONDARY outcome

Timeframe: 3 years

This will be estimated by the number of patients who achieve MRD negative status by flow cytometry (MPF) in the bone marrow after pre-SCT consolidation with daratumumab divided by the total number of evaluable patients. Exact binomial 95% confidence intervals for the true rate of MRD negative response after pre-SCT consolidation with daratumumab will be calculated.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
The Rate of MRD Negative Response After Pre-stem Cell Transplant (SCT) Consolidation With Daratumumab
0.152 proportion of participants
Interval 0.063 to 0.289

SECONDARY outcome

Timeframe: 1 year

This will be estimated by the number of patients who achieve MRD negative status by flow cytometry (MPF) in the bone marrow after 1 year of maintenance therapy divided by the total number of evaluable patients. Exact binomial 95% confidence intervals for the true rate of MRD negative response after 1 year of maintenance will be calculated.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Rate of MRD Negative Response After 1 Year (12 Courses) of Daratumumab and Lenalidomide Maintenance
0.3478 proportion of participants
Interval 0.2135 to 0.5025

SECONDARY outcome

Timeframe: 3 years

The distribution of progression-free survival will be estimated using the Kaplan-Meier method. The percent of patients alive and disease free at 3 years is reported.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Progression-free Survival
92.6 percent of participants
Interval 84.7 to 100.0

SECONDARY outcome

Timeframe: 3 years

The distribution of survival time will be estimated using the Kaplan-Meier method. The percent of patients alive at 3 years will be reported.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Overall Survival
97.0 percent of participants
Interval 91.3 to 100.0

SECONDARY outcome

Timeframe: 100 days

This will be estimated by the number of patients with an objective status of stringent complete responses, complete response, very good partial response, or partial response at the day 100 post ASCT assessment divided by the total number of evaluable patients. Response assessment will be in comparison to values obtained at the disease assessment at the time registration. Exact binomial 95% confidence intervals for the true overall response rate at day 100 post ASCT will be calculated.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=46 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Overall Response Rate
0.7174 proportion of participants
Interval 0.5654 to 0.8401

SECONDARY outcome

Timeframe: 3 years

The maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration. The percent of patients that reported a grade 3 or higher adverse events according to CTCAE criteria is reported.

Outcome measures

Outcome measures
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=49 Participants
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Incidence of Adverse Events
90 percent of participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to cycle 18/16 months of treatment

MRD assessment will be correlated between blood and bone marrow. Patients will be categorized as positive versus (vs.) negative MRD. The number of patients who have agreement between the 2 measures (both positive or both negative) will be assessed.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to cycle 18/16 months of treatment

MRD assessment will be correlated between flow cytometry (MPF) and NGS. Patients will be categorized as positive vs. negative MRD for each measure. The number of patients who have agreement between the 2 measures (both positive or both negative) will be assessed.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to cycle 18/16 months of treatment

This will be assessed as continuous variables and their mutual change over time as assessed on the pre-specified time points will be correlated with response category to the treatment.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to cycle 18/16 months of treatment

These will be assessed as continuous variables and their mutual change over time as assessed on the pre-specified time points will be correlated with response category to the treatment.

Outcome measures

Outcome data not reported

Adverse Events

Treatment (Daratumumab, ASCT, Lenalidomide)

Serious events: 13 serious events
Other events: 47 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=49 participants at risk
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Blood and lymphatic system disorders
Anemia
2.0%
1/49 • Number of events 1 • 3 years
Gastrointestinal disorders
Colitis
2.0%
1/49 • Number of events 1 • 3 years
Gastrointestinal disorders
Nausea
2.0%
1/49 • Number of events 1 • 3 years
General disorders
Fatigue
2.0%
1/49 • Number of events 1 • 3 years
General disorders
Fever
8.2%
4/49 • Number of events 4 • 3 years
Hepatobiliary disorders
Cholecystitis
4.1%
2/49 • Number of events 2 • 3 years
Infections and infestations
Infections and infestations - Oth spec
2.0%
1/49 • Number of events 1 • 3 years
Infections and infestations
Lung infection
6.1%
3/49 • Number of events 3 • 3 years
Infections and infestations
Sepsis
2.0%
1/49 • Number of events 1 • 3 years
Infections and infestations
Sinusitis
2.0%
1/49 • Number of events 1 • 3 years
Infections and infestations
Upper respiratory infection
2.0%
1/49 • Number of events 1 • 3 years
Investigations
Platelet count decreased
2.0%
1/49 • Number of events 1 • 3 years
Investigations
White blood cell decreased
2.0%
1/49 • Number of events 1 • 3 years
Musculoskeletal and connective tissue disorders
Back pain
2.0%
1/49 • Number of events 1 • 3 years
Nervous system disorders
Headache
2.0%
1/49 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Skin and subcut tissue disord - Oth spec
2.0%
1/49 • Number of events 1 • 3 years
Vascular disorders
Hypertension
2.0%
1/49 • Number of events 1 • 3 years
Vascular disorders
Hypotension
2.0%
1/49 • Number of events 1 • 3 years

Other adverse events

Other adverse events
Measure
Treatment (Daratumumab, ASCT, Lenalidomide)
n=49 participants at risk
Patients receive daratumumab IV on days 1, 8, 15, and 22 of cycles 1-2, and on days 1 and 15 of cycles 3-4. Treatment repeats every 28 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning 8 weeks after completion of daratumumab cycle 2 or 4, patients undergo ASCT. Within 14 days after completion of day 100 visit post-SCT, patients receive daratumumab IV on day 1 and lenalidomide PO daily on days 1-21. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients who are still maintaining response continue to receive daratumumab IV every 3 months in the absence of disease progression or unacceptable toxicity.
Blood and lymphatic system disorders
Anemia
91.8%
45/49 • Number of events 311 • 3 years
Blood and lymphatic system disorders
Blood and lymph sys disorders - Oth Spec
2.0%
1/49 • Number of events 1 • 3 years
Ear and labyrinth disorders
External ear inflammation
2.0%
1/49 • Number of events 1 • 3 years
Gastrointestinal disorders
Constipation
2.0%
1/49 • Number of events 3 • 3 years
Gastrointestinal disorders
Diarrhea
2.0%
1/49 • Number of events 3 • 3 years
Gastrointestinal disorders
Gastritis
2.0%
1/49 • Number of events 1 • 3 years
General disorders
Edema limbs
2.0%
1/49 • Number of events 1 • 3 years
General disorders
Fatigue
51.0%
25/49 • Number of events 231 • 3 years
General disorders
Injection site reaction
2.0%
1/49 • Number of events 1 • 3 years
Infections and infestations
Sepsis
2.0%
1/49 • Number of events 1 • 3 years
Infections and infestations
Sinusitis
2.0%
1/49 • Number of events 1 • 3 years
Injury, poisoning and procedural complications
Infusion related reaction
16.3%
8/49 • Number of events 13 • 3 years
Investigations
Lymphocyte count decreased
65.3%
32/49 • Number of events 67 • 3 years
Investigations
Lymphocyte count increased
2.0%
1/49 • Number of events 1 • 3 years
Investigations
Neutrophil count decreased
83.7%
41/49 • Number of events 185 • 3 years
Investigations
Platelet count decreased
93.9%
46/49 • Number of events 229 • 3 years
Investigations
White blood cell decreased
83.7%
41/49 • Number of events 55 • 3 years
Musculoskeletal and connective tissue disorders
Arthralgia
2.0%
1/49 • Number of events 4 • 3 years
Nervous system disorders
Headache
2.0%
1/49 • Number of events 5 • 3 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
2.0%
1/49 • Number of events 2 • 3 years
Respiratory, thoracic and mediastinal disorders
Wheezing
2.0%
1/49 • Number of events 2 • 3 years
Skin and subcutaneous tissue disorders
Rash maculo-papular
24.5%
12/49 • Number of events 47 • 3 years
Skin and subcutaneous tissue disorders
Skin and subcut tissue disord - Oth spec
2.0%
1/49 • Number of events 2 • 3 years
Vascular disorders
Hypertension
2.0%
1/49 • Number of events 10 • 3 years

Additional Information

Sikander Ailawadhi

Mayo Clinic

Phone: 904-953-0450

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place