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Open Label Multicenter Study of CVP Followed by Iodine-131 Anti-B1 Antibody for Subjects With Untreated Low-Grade Non Hodgkin's Lymphoma.

Phase II Multicenter Study of Cyclophosphamide, Vincristine, and Prednisone (CVP) Followed by Iodine-131 Anti-B1 Antibody for Patients With Untreated Low-grade Non-Hodgkin's Lymphoma (NHL).

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01663714
Enrollment
30
Registered
2012-08-13
Start date
2000-02-29
Completion date
2012-02-29
Last updated
2017-01-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphoma, Non-Hodgkin

Keywords

Non-Hodgkin's Lymphoma, tositumomab and iodine I 131 tositumomab, Bexxar, cycolophosphamide, vacristine, and pednisone

Brief summary

This is a phase II, open-label, multicenter study of the efficacy and safety of sequential administration of CVP x 6 followed by tositumomab and iodine I 131 tositumomab (formerly referred to as tositumomab and iodine I 131 tositumomab). All patients who complete three cycles of CVP, regardless of response, will be eligible for treatment with tositumomab and iodine I 131 tositumomab. Subjects who have rapidly progressive disease prior to completing three cycles of CVP may be removed from study. In order to proceed to tositumomab and iodine I 131 tositumomab therapy, patients must have completed six cycles of CVP within 20 weeks as described. Patients may proceed to Iodine-131 Anti-B1 Antibody if they have progressive disease documented at the response evaluation following 6 cycles of CVP. In addition, patients must still meet the eligibility inclusion exclusion criteria based upon the week 20 assessments, as applicable. Patients must also have an average of ≤25% bone marrow involved by NHL to receive treatment with tositumomab and iodine I 131 tositumomab. The dosimetric dose of tositumomab and iodine I 131 tositumomab must be given within 28 days of the response evaluation following CVP and no later than 56 days from the first day of the sixth cycle of CVP.

Detailed description

This is a phase II, open-label, multicenter study of the efficacy and safety sequential administration of cycolophosphamide, vacristine, and prednisone (CVP) x6 cycles followed by tositumomab and iodine I 131 tositumomab for previously untreated subjects with low-grade Non-Hodgkin's Lymphoma (NHL). CVP will be repeated every 21 days for a total of six cycles. tositumomab and iodine I 131 tositumomab will begin within 56 days following the first day of the sixth cycle of CVP. Subjects will undergo two dosing phase for the tositumomab and iodine I 131 tositumomab therapy. In the first phase, dosimetric dose, patients will receive an infusion of unlabeled Anti-B1 Antibody (450mg) over 60 minutes followed by a 30 minute infusion (including a 10-minutes flush) of Anti-B1 (35mg) containing 5mCi of Iodine-131. Whole body gamma camera scans will be obtained on Day 0; Day 2, 3, or 4 and Day 6 or 7 following the dosimetric dose. Using the dosimetric data from three time points, a patient-specific dose of Iodine-131 will be calculated to deliver the desired total body dose of radiotherapy. In the second phase, termed the therapeutic dose, patients will receive 60-minute infusion of unlabeled Anti-B1 Antibody (450 mg) followed by a 30-minute infusion (including a 10-minute flush) of 35 mg Anti-B1 Antibody labeled with the subjects -specific dose of Iodine-131 calculate to deliver a 75cGy total body radiation dose. Subjects who have platelet counts of 100,000-149,999 cells/mm3 will receive 65 cGy; obese patients will be dosed base upon 137% of their lean body mass. Subjects will be treated with saturated solution potassium iodide (SSKI), Lugol's solution, or potassium iodide tablets starting at least 24 hours prior to the first infusion of the tositumomab and iodine I 131 tositumomab (i.e., the dosimetric dose) and continuing for 14 days following the least infusion of tositumomab and iodine I 131 tositumomab (i.e., the therapeutic dose).

Interventions

BIOLOGICALcycolophosphamide, vacristine, and pednisone (CVP) x6 cycles followed by tositumomab and iodine I 131 tositumomab.

cycolophosphamide, vacristine, and pednisone (CVP) x6 cycles followed by tositumomab and iodine I 131 tositumomab. CVP will be repeated every 21 days for a total of six cycles. tositumomab and iodine I 131 tositumomab will begin within 56 days following the first day of the sixth cycle of CVP. Patient will undergo two dosing phase for the tositumomab and iodine I 131 tositumomab therapy.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects must have a histologically confirmed initial diagnosis of low-grade non-Hodgkin's B-cell lymphoma according to the International Working Formulation (IWF) (32) (i.e., small lymphocytic with or without plasmacytoid differentiation; follicular small cleaved cell; or follicular, mixed small cleaved and large cell). * Subjects must have Ann Arbor Stage III, Stage IV, or bulky Stage II disease at diagnosis. Bulky Stage II is defined as a mediastinal mass greater than one-third of the maximum chest diameter, or any other mass greater than or equal to 10 cm in maximum diameter. * Subjects must have evidence that their tumor tissue expresses the CD20 antigen. Immunoperoxidase stains of paraffin-embedded tissue showing positive reactivity with L26 antibody or immunoperoxidase stains of frozen tissue showing positive reactivity with Anti B1 Antibody (Coulter Clone®) or similar commercially available CD20 antibody or evidence of CD20 positivity by flow cytometry are acceptable evidence of CD20 positivity. Testing of tumor tissue from any time in the course of the patient's disease is acceptable. * Subjects must have a performance status of at least 60% on the Karnofsky Performance Scale and an anticipated survival of at least 3 months. * Subjects must have an ANC≥1500 cells/mm3 and a platelet count ≥100,000 cells/mm3 within 14 days of study enrollment. These blood counts must be sustained without support of hematopoietic cytokines or transfusion of blood products. * Subjects must have adequate renal function (defined as serum creatinine \<1.5 times the upper limit of normal) and hepatic function (defined as total bilirubin \<1.5 times the upper limit of normal and AST \<5 times the upper limit of normal) within 14 days of study enrollment. * Subjects must have bi-dimensionally measurable disease. At least one lesion must be ≥2.0x2.0 cm by computerized tomography scan. * Subjects must be at least 18 years of age. * Subjects of childbearing potential must have a negative serum pregnancy test within 7 days prior to study enrollment. * Subjects must give written informed consent and sign an IRB-approved informed consent form prior to study enrollment.

Exclusion criteria

* Subjects who have received prior chemotherapy, biologic therapy, steroids, or radiation therapy as treatment for their NHL. * Subjects with active obstructive hydronephrosis. * Subjects with New York Heart Association class III or IV heart disease or other serious illness that would preclude evaluation. * Subjects with prior malignancy other than lymphoma, except for adequately treated skin cancer, in situ cervical cancer, or other cancer for which the patient has been disease-free for 5 years. Patients who have been disease-free of another cancer for greater than 5 years must be carefully assessed at the time of study entry to rule out recurrent disease. * Subjects with known HIV infection. * Subjects who are HAMA positive. * Subjects with known brain or leptomeningeal metastases. * Subjects who are pregnant or breastfeeding. Males and females must agree to use a contraceptive method from enrollment to 6 months after receiving Iodine 131 Anti B1 Antibody. * Subjects with active infection requiring IV anti-infectives at the time of study enrollment. * Subjects with intermediate- or high-grade NHL.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants (Par.) With Unconfirmed Response (Complete Response, Complete Response/Unconfirmed, or Partial Response), as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.Par. with response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Complete Response/unconfirmed (CRu: complete resolution of all disease-related symptoms; residual lymph node mass \>1.5 centimeters in the greatest transverse diameter that has regressed by \>75%, indeterminate bone marrow, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
Number of Participants (Par.) With Confirmed Response (Complete Response [CR], Complete Response/Unconfirmed [CRu], or Partial Response [PR]), as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease. CRu: complete resolution of all disease-related symptoms; residual lymph node mass \>1.5 centimeters in the greatest transverse diameter that has regressed by \>75%, indeterminate bone marrow, are present. PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions. Confirmed response required CR, CRu, or PR, which were confirmed by 2 separate response evaluations \>=4 weeks apart.

Secondary

MeasureTime frameDescription
Duration of Response (DOR), as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.DOR=the time from the first documented response (for par. with CR, CRu, or PR) until disease progression (DP). DP=a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 centimeters (cm) in diameter by radiographic evaluation or \>1 cm in diameter by physical examination. Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart.
DOR for Unconfirmed and Confirmed Complete Response, as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.DOR=the time from the first documented response (for par. with CR) until disease progression (DP). DP=a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 centimeters (cm) in diameter by radiographic evaluation or \>1 cm in diameter by physical examination. Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart.
Number of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No AE or within normal limits; 1 = Mild AE; 2 = Moderate AE; 3 = Severe and undesirable AE; 4 = Life-threatening or disabling AE; 5 = Death related to AE.
Time to Progression of Disease or Death, as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.Time to progression or progression-free survival is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death. Disease progression is defined as a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of the study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 cm in diameter by radiographic evaluation or \>1 cm in diameter by physical examination.
Time to Treatment Failure, as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.Time to treatment failure is defined as the time from the start of treatment to the first occurrence of study withdrawal, progression, or death.
Total Body Residence Time (TBRT; Average Amount of Time TST Spends in the Body, Calculated From the Rate of TB Clearance of Radioactivity During the Dosimetric Dose [DD]) of Iodine 131 TST Antibody Following the DDDay (D) 0; D 2, 3, or 4; and D 6 or 7To determine TBRT, the percent-injected activity (PIA) is calculated from the background-corrected (BC) total body count (TBC) at D 0; D 2/3/4; and D 7. The time from the DD to the acquisition of whole body count (WBC) is then determined. The PIA remaining at each time point (TP) is then calculated by dividing the BC WBC for that TP by the BC WBC from the first TP (D 0) \* 100. To determine RT, a best-fit line from 100% (pre-plotted D 0 value) through 2 plotted points (other TPs) is made. TBRT=the x-axis value at the point where the line intersects the horizontal 37% injected activity line.
Time to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) CountUp to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).
Time to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) EvaluationsUp to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)TTR to BL grade (gr.) for par. with a Gr. 0 toxicity (tox.=lab. value outside the normal range) at BL=time from the last administration of study drug (SD) to the first post-nadir (PN) date with Gr. 0 toxicity with no other Gr. 1-4 toxicities recorded within the next week. For par. with a higher gr. tox. at BL, TTR=time from the last administration of SD to the first PN date with the BL gr. or better with no other higher gr. toxicities recorded during the next week. Each lab. established its own reference range using data from its own equipment/methods; there is no standard reference range.
Nadir Values for Absolute Neutrophil Count (ANC)Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).
Number of Participants With Unconfirmed Complete Response (CR), as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease, if present before therapy.
Nadir Values for Platelet CountUp to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).
Nadir Values for WBC CountUp to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).
Number of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No AE or within normal limits; 1 = Mild AE; 2 = Moderate AE; 3 = Severe and undesirable AE; 4 = Life-threatening or disabling AE; 5 = Death related to AE. The Investigator assessed whether the AE was possibly or probably related to study drug. In addition, all laboratory-derived hematologic toxicities (values outside the normal range) were assumed to be possibly or probably related to study drug.
Number of Participants With Any Treatment-related Serious Adverse Event (SAE)Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.An SAE is defined as any event occurring at any dose that results in any of the following outcomes: death, a life-threatening adverse drug experience (at immediate risk of death from the experience as it occurred), inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant disability/incapacity, or a congenital anomaly/birth defect. Important medical events that may not result in death, be life threatening, or require hospitalization may be considered to be a serious adverse drug experience when based upon appropriate medical judgment.
Number of Participants With the Indicated Primary Cause of DeathPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.The primary cause of death of the participants was assessed by the Investigator.
Number of Participants Who Received Any Supportive CarePar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.Supportive care is defined as interventions that help the participants achieve comfort but do not affect the course of a disease.
Number of Participants Who Were Negative for Human Anti-murine Antibodies (HAMA) at Baseline (Study Entry) But Positive or Negative at Month 24Day 1 to Day 730 (24 months) after receiving the dosimetric doseThe administration of murine antibodies may form HAMA. A HAMA assay was performed using the ImmunoSTRIP HAMA IgG enzyme-linked immune absorbent assay by a central laboratory (Covance Classic Laboratory Services, Indianapolis, IN). To be positive, a participant had to have a positive HAMA assessment during the first 24 months.
Overall SurvivalPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.Overall survival is defined as the time from the treatment start date to the date of death from any cause.
Nadir Values for HemoglobinUp to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).
Number of Participants With Confirmed Complete Response (CR), as Assessed by the InvestigatorPar. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease, if present before therapy. Confirmed response required CR, which was confirmed by 2 separate response evaluations \>=4 weeks apart.

Participant flow

Pre-assignment details

Participants (par.) received cyclophosphamide (C), vincristine (V), prednisone (P) in the first study phase (P). Upon completion of this P, par. began the first of 2 phases of radio immunotherapy: P1, dosimetric dose (DD); P2, therapeutic dose. Par. completing 2 years of the study could enter a long-term follow-up study (BEX104528; NCT00240578).

Participants by arm

ArmCount
Chemotherapy; TST and Iodine I 131 TST
Par. received 6 cycles of chemo.: oral Cyclophosphamide (400 mg/m\^2/day) for 1-5 days; IV Vincristine (1.4 mg/m\^2) on Day 1; oral Prednisone (100 mg/m\^2/day) for 1-5 days. Par. received the DD 4-8 weeks after Day 1 of Cycle 6 of chemo. Unlabeled TST (450 mg) was infused IV for 1 hour prior to a 30 minute infusion of 35 mg TST trace labeled with 5 mCi Iodine 131. Par. received 4 DBM TID of KI and 20 DBM TID Lugol's solution or KI tablets (130 mg BM, daily) \>=24 hours prior to DD administration.Treatment continued daily for 14 days after the TD: a 1 hour IV infusion of 450 mg TST, followed by an infusion of 35 mg TST radiolabeled with Iodine I 131 to deliver a 75 centiGray total body radiation dose. Par. completing 2 years of the study could enter a 10-year Long-Term Follow-Up study (BEX104528) in which no study medication was given.
30
Total30

Withdrawals & dropouts

PeriodReasonFG000
Dosimetric and Therapeutic TreatmentLost to Follow-up3
Dosimetric and Therapeutic TreatmentProgressive Disease11
Dosimetric and Therapeutic TreatmentRolled Over to Study BEX10452816
Long-Term Follow-UpDeath4
Long-Term Follow-UpLost to Follow-up1
Long-Term Follow-UpNon-compliance1

Baseline characteristics

CharacteristicChemotherapy; TST and Iodine I 131 TST
Age, Continuous50.6 Years
STANDARD_DEVIATION 9.5
Gender
Female
17 Participants
Gender
Male
13 Participants
Race/Ethnicity, Customized
Hispanic
2 participants
Race/Ethnicity, Customized
White
28 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
30 / 3030 / 3030 / 30
serious
Total, serious adverse events
7 / 308 / 3013 / 30

Outcome results

Primary

Number of Participants (Par.) With Confirmed Response (Complete Response [CR], Complete Response/Unconfirmed [CRu], or Partial Response [PR]), as Assessed by the Investigator

CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease. CRu: complete resolution of all disease-related symptoms; residual lymph node mass \>1.5 centimeters in the greatest transverse diameter that has regressed by \>75%, indeterminate bone marrow, are present. PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions. Confirmed response required CR, CRu, or PR, which were confirmed by 2 separate response evaluations \>=4 weeks apart.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: Intent-to-Treat (ITT) Exposed Population: all participants who were enrolled into the study and received at least one dose of study drug. Only those participants evaluable for response were analyzed.

ArmMeasureValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants (Par.) With Confirmed Response (Complete Response [CR], Complete Response/Unconfirmed [CRu], or Partial Response [PR]), as Assessed by the Investigator30 participants
95% CI: [100, 100]
Primary

Number of Participants (Par.) With Unconfirmed Response (Complete Response, Complete Response/Unconfirmed, or Partial Response), as Assessed by the Investigator

Par. with response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Complete Response/unconfirmed (CRu: complete resolution of all disease-related symptoms; residual lymph node mass \>1.5 centimeters in the greatest transverse diameter that has regressed by \>75%, indeterminate bone marrow, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: Intent-to-Treat (ITT) Exposed Population: all participants who were enrolled into the study and received at least one dose of study drug. Only those participants evaluable for response were analyzed.

ArmMeasureValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants (Par.) With Unconfirmed Response (Complete Response, Complete Response/Unconfirmed, or Partial Response), as Assessed by the Investigator30 participants
95% CI: [100, 100]
Secondary

DOR for Unconfirmed and Confirmed Complete Response, as Assessed by the Investigator

DOR=the time from the first documented response (for par. with CR) until disease progression (DP). DP=a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 centimeters (cm) in diameter by radiographic evaluation or \>1 cm in diameter by physical examination. Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population. Only those participants with response were analyzed. Participants who did not experience progression were censored.

ArmMeasureGroupValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTDOR for Unconfirmed and Confirmed Complete Response, as Assessed by the InvestigatorUnconfirmed Responders with CR129.6 months
Chemotherapy; TST and Iodine I 131 TSTDOR for Unconfirmed and Confirmed Complete Response, as Assessed by the InvestigatorConfirmed Responders with CR129.6 months
Secondary

Duration of Response (DOR), as Assessed by the Investigator

DOR=the time from the first documented response (for par. with CR, CRu, or PR) until disease progression (DP). DP=a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 centimeters (cm) in diameter by radiographic evaluation or \>1 cm in diameter by physical examination. Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population. Only those participants with response were analyzed. Participants who did not experience progression were censored.

ArmMeasureGroupValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTDuration of Response (DOR), as Assessed by the InvestigatorUnconfirmed Responders129.6 months
Chemotherapy; TST and Iodine I 131 TSTDuration of Response (DOR), as Assessed by the InvestigatorConfirmed Responders129.6 months
Secondary

Nadir Values for Absolute Neutrophil Count (ANC)

Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTNadir Values for Absolute Neutrophil Count (ANC)0.4 10^3 cells/cubic millimeters (mm^3)
Secondary

Nadir Values for Hemoglobin

Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTNadir Values for Hemoglobin10.6 Grams/deciliter (g/dL)
Secondary

Nadir Values for Platelet Count

Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTNadir Values for Platelet Count57.0 10^3 cells/microliter (µL)
Secondary

Nadir Values for WBC Count

Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTNadir Values for WBC Count1.8 10^3 cells/µL
Secondary

Number of Participants Who Received Any Supportive Care

Supportive care is defined as interventions that help the participants achieve comfort but do not affect the course of a disease.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT-Exposed Population

ArmMeasureValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants Who Received Any Supportive Care17 participants
Secondary

Number of Participants Who Were Negative for Human Anti-murine Antibodies (HAMA) at Baseline (Study Entry) But Positive or Negative at Month 24

The administration of murine antibodies may form HAMA. A HAMA assay was performed using the ImmunoSTRIP HAMA IgG enzyme-linked immune absorbent assay by a central laboratory (Covance Classic Laboratory Services, Indianapolis, IN). To be positive, a participant had to have a positive HAMA assessment during the first 24 months.

Time frame: Day 1 to Day 730 (24 months) after receiving the dosimetric dose

Population: ITT Exposed Population

ArmMeasureGroupValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants Who Were Negative for Human Anti-murine Antibodies (HAMA) at Baseline (Study Entry) But Positive or Negative at Month 24Positive0 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants Who Were Negative for Human Anti-murine Antibodies (HAMA) at Baseline (Study Entry) But Positive or Negative at Month 24Negative30 participants
Secondary

Number of Participants With Any Treatment-related Serious Adverse Event (SAE)

An SAE is defined as any event occurring at any dose that results in any of the following outcomes: death, a life-threatening adverse drug experience (at immediate risk of death from the experience as it occurred), inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant disability/incapacity, or a congenital anomaly/birth defect. Important medical events that may not result in death, be life threatening, or require hospitalization may be considered to be a serious adverse drug experience when based upon appropriate medical judgment.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT-Exposed Population. All participants who experienced a treatment-related SAE were analyzed.

ArmMeasureGroupValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Febrile neutropenia5 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Anaemia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Neutropenia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Thrombocytopenia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Granulocytopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Leukopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Acute myeloid leukaemia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Basal cell carcinoma1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Myelodysplastic syndrome1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Squamous cell carcinoma1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Perirectal abscess2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Neutropenic infection1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Pyrexia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Any Treatment-related Serious Adverse Event (SAE)Cystitis hemorrhagic1 participants
Secondary

Number of Participants With Confirmed Complete Response (CR), as Assessed by the Investigator

CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease, if present before therapy. Confirmed response required CR, which was confirmed by 2 separate response evaluations \>=4 weeks apart.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population

ArmMeasureValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Confirmed Complete Response (CR), as Assessed by the Investigator21 participants
Secondary

Number of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)

AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No AE or within normal limits; 1 = Mild AE; 2 = Moderate AE; 3 = Severe and undesirable AE; 4 = Life-threatening or disabling AE; 5 = Death related to AE.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population

ArmMeasureGroupValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Breast mass1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)ANC <1000 cells/mm^329 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)WBC <2000 cells/mm^323 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Platelets <50000 cells/mm^312 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Hemoglobin <8.0 g/dL2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Neutropenia15 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Leukopenia6 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Febrile neutropenia5 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Thrombocytopenia4 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Anemia3 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Granulocytopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Lymphopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Alopecia9 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Night sweats1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Acute myeloid leukaemia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Basal cell carcinoma2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Myelodysplastic syndrome1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Prostate cancer1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Squamous cell carcinoma1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Perirectal abscess2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Urinary tract infection2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Cystitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Neutropenic infection1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Otitis media1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Periorbital cellulitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Aphasia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Cerebrovascular accident1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Headache1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Hypoaesthesia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)VIIth nerve paralysis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Asthenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Pyrexia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Myalgia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Pain in extremity1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Depression1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Insomnia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Amenorrhoea1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Conjunctivitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Constipation1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Drug hypersensitivity1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Aspartate aminotransferase increased1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Cystitis hemorrhagic1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Adverse Events (AEs)Epistaxis1 participants
Secondary

Number of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study Drug

AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No AE or within normal limits; 1 = Mild AE; 2 = Moderate AE; 3 = Severe and undesirable AE; 4 = Life-threatening or disabling AE; 5 = Death related to AE. The Investigator assessed whether the AE was possibly or probably related to study drug. In addition, all laboratory-derived hematologic toxicities (values outside the normal range) were assumed to be possibly or probably related to study drug.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population

ArmMeasureGroupValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugANC <1000 cells/mm^329 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugWBC <2000 cells/mm^323 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugPlatelets <50000 cells/mm^312 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugHemoglobin <8.0 g/dL2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugNeutropenia15 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugPeriorbital cellulitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugLeukopenia6 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugFebrile neutropenia5 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugThrombocytopenia4 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugAnemia3 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugGranulocytopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugLymphopenia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugAlopecia9 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugNight sweats1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugPerirectal abscess2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugUrinary tract infection2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugCystitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugNeutropenic infection1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugOtitis media1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugAcute myeloid leukaemia2 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugBasal cell carcinoma1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugMyelodysplastic syndrome1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugSquamous cell carcinoma1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugHeadache1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugDepression1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugVIIth nerve paralysis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugInsomnia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugConjunctivitis1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugConstipation1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugPyrexia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugAspartate aminotransferase increased1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugMyalgia1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugCystitis hemorrhagic1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugAmenorrhoea1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Possibly or Probably Related to Study DrugEpistaxis1 participants
Secondary

Number of Participants With the Indicated Primary Cause of Death

The primary cause of death of the participants was assessed by the Investigator.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population. All participants who died during the study were analyzed.

ArmMeasureGroupValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathProgression of lymphoma5 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathComplications related to study drug1 participants
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathOther3 participants
Secondary

Number of Participants With Unconfirmed Complete Response (CR), as Assessed by the Investigator

CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease, if present before therapy.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population

ArmMeasureValue (NUMBER)
Chemotherapy; TST and Iodine I 131 TSTNumber of Participants With Unconfirmed Complete Response (CR), as Assessed by the Investigator21 participants
Secondary

Overall Survival

Overall survival is defined as the time from the treatment start date to the date of death from any cause.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTOverall SurvivalNA months
Secondary

Time to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) Count

Nadir is defined as the lowest laboratory value recorded up to 120 days following the therapeutic dose (or the dosimetric dose for participants who did not receive the therapeutic dose).

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population

ArmMeasureGroupValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTTime to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) CountANC49.0 days
Chemotherapy; TST and Iodine I 131 TSTTime to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) CountHemoglobin49.0 days
Chemotherapy; TST and Iodine I 131 TSTTime to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) CountPlatelets35.5 days
Chemotherapy; TST and Iodine I 131 TSTTime to Nadir for Hematological Parameters: Absolute Neutrophil Count (ANC), Hemoglobin, Platelets, and White Blood Cell (WBC) CountWBC count44.0 days
Secondary

Time to Progression of Disease or Death, as Assessed by the Investigator

Time to progression or progression-free survival is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death. Disease progression is defined as a \>=50% increase from the nadir value (lowest laboratory value recorded following administration of the study medication) of the sum of the products of the longest perpendicular diameters of all measurable lesions or the appearance of any new lesion. Individual lesions must be \>1.5 cm in diameter by radiographic evaluation or \>1 cm in diameter by physical examination.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population. If a participant did not have progression or did not die, that participant was censored in the survival analysis.

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTTime to Progression of Disease or Death, as Assessed by the Investigator110.2 months
Secondary

Time to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) Evaluations

TTR to BL grade (gr.) for par. with a Gr. 0 toxicity (tox.=lab. value outside the normal range) at BL=time from the last administration of study drug (SD) to the first post-nadir (PN) date with Gr. 0 toxicity with no other Gr. 1-4 toxicities recorded within the next week. For par. with a higher gr. tox. at BL, TTR=time from the last administration of SD to the first PN date with the BL gr. or better with no other higher gr. toxicities recorded during the next week. Each lab. established its own reference range using data from its own equipment/methods; there is no standard reference range.

Time frame: Up to 120 days following the therapeutic dose (given on Study Day 7, following the dosimetric dose) (or the dosimetric dose for participants who did not receive the therapeutic dose)

Population: ITT Exposed Population. Only those participants with hematologic toxicity were evaluated for time to recovery to baseline.

ArmMeasureGroupValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTTime to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) EvaluationsTime to recovery to baseline ANC, n=3077.0 days
Chemotherapy; TST and Iodine I 131 TSTTime to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) EvaluationsTime to recovery to baseline hemoglobin, n=2876.5 days
Chemotherapy; TST and Iodine I 131 TSTTime to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) EvaluationsTime to recovery to baseline platelets, n=3060.5 days
Chemotherapy; TST and Iodine I 131 TSTTime to Recovery (TTR) to Baseline (BL) for Hematologic Laboratory (Lab.) EvaluationsTime to recovery to baseline WBC count, n=29126.5 days
Secondary

Time to Treatment Failure, as Assessed by the Investigator

Time to treatment failure is defined as the time from the start of treatment to the first occurrence of study withdrawal, progression, or death.

Time frame: Par. were evaluated until death/disease progression or for 2 years in Study BEX104514. Par. who completed 2 years in Study BEX104514 were followed in Study BEX104528 for up to 130 months. Data are included from Study BEX104514 and Study BEX104528.

Population: ITT Exposed Population. If a participant did not have treatment failure, that participant was censored in the survival analysis.

ArmMeasureValue (MEDIAN)
Chemotherapy; TST and Iodine I 131 TSTTime to Treatment Failure, as Assessed by the Investigator78.9 months
Secondary

Total Body Residence Time (TBRT; Average Amount of Time TST Spends in the Body, Calculated From the Rate of TB Clearance of Radioactivity During the Dosimetric Dose [DD]) of Iodine 131 TST Antibody Following the DD

To determine TBRT, the percent-injected activity (PIA) is calculated from the background-corrected (BC) total body count (TBC) at D 0; D 2/3/4; and D 7. The time from the DD to the acquisition of whole body count (WBC) is then determined. The PIA remaining at each time point (TP) is then calculated by dividing the BC WBC for that TP by the BC WBC from the first TP (D 0) \* 100. To determine RT, a best-fit line from 100% (pre-plotted D 0 value) through 2 plotted points (other TPs) is made. TBRT=the x-axis value at the point where the line intersects the horizontal 37% injected activity line.

Time frame: Day (D) 0; D 2, 3, or 4; and D 6 or 7

Population: ITT Exposed Population

ArmMeasureValue (MEAN)Dispersion
Chemotherapy; TST and Iodine I 131 TSTTotal Body Residence Time (TBRT; Average Amount of Time TST Spends in the Body, Calculated From the Rate of TB Clearance of Radioactivity During the Dosimetric Dose [DD]) of Iodine 131 TST Antibody Following the DD103.7 hoursStandard Deviation 8.55

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026