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A Phase II Clinical Trial of PM01183 in BRCA 1/2-Associated or Unselected Metastatic Breast Cancer

A Multicenter Phase II Clinical Trial of PM01183 in BRCA 1/2-Associated or Unselected Metastatic Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01525589
Enrollment
111
Registered
2012-02-03
Start date
2012-06-13
Completion date
2018-10-31
Last updated
2020-09-25

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

Conditions

Breast Cancer

Keywords

Breast cancer, PM01183, lurbinectedin, Pharma Mar

Brief summary

A Clinical Trial of PM01183 in Metastatic Breast Cancer to assess the antitumor activity of PM01183 ,to evaluate whether the presence of a known germline mutation in BRCA 1/2 predicts response to PM01183 in Metastatic Breast Cancer (MBC) patients, to evaluate the safety profile of this PM01183 to analyze the pharmacokinetics (PK) and PK/PD (pharmacokinetic/pharmacodynamic) correlations and to evaluate the pharmacogenomic (PGx) expression profile in tumor samples.

Detailed description

A Multicenter Phase II Clinical Trial of PM01183 in BRCA 1/2-Associated or Unselected Metastatic Breast Cancer to assess the antitumor activity of PM01183 in terms of overall response rate (ORR), duration of response (DR),clinical benefit \[ORR or stable disease lasting over three months (SD \> 3 months)\], progression free survival (PFS), and one-year overall survival (1y-OS) and to evaluate whether the presence of a known germline mutation in BRCA 1/2 predicts response to PM01183 in MBC patients, to explore the activity of PM01183 in specific breast cancer subpopulations according to hormonal receptor status, HER-2 overexpression, number and/or type of prior therapies, or according to other available histological/molecular classifications, to evaluate the safety profile of this PM01183 administration schedule \[Day 1 every three weeks (q3wk)\] in this patient population, to analyze the pharmacokinetics (PK) of PM01183 in this patient population, to explore PK/PD (pharmacokinetic/ pharmacodynamic) correlations, if applicable and to evaluate the pharmacogenomic (PGx) expression profile of selected putative markers potentially predictive of response to PM01183, in tissues from tumor samples.

Interventions

PM01183 drug product (DP) is presented as a lyophilized powder for concentrate for solution for infusion with two strengths: 1 mg/vial and 4 mg/vial

Sponsors

PharmaMar
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Women ≥ 18 and ≤ 75 years of age. * Voluntary signed informed consent form (ICF). * Proven diagnosis of metastatic breast cancer (MBC). * At least one, but no more than three, prior chemotherapy regimens for MBC. * Patients with known HER-2 overexpressing MBC must have failed at least one prior trastuzumab-containing regimen for metastatic disease. * Disease evaluable for response by specific appropriate criteria. * No or minimal disease-related symptoms not affecting patient daily activities. * Adequate major organ function (normal or minimal alteration in liver, kidney, hematological, metabolic and cardiac function) * Wash out periods prior to Day 1 of Cycle 1: At least three weeks since the last chemotherapy (six weeks in some particular cases) and At least four weeks since the last radiotherapy (RT) \> 30 Gy) and At least one week since the last hormonal therapy and At least two weeks since the last biological/investigational therapy * Minimal or no ongoing toxicity from immediately prior therapy according to specific appropriate criteria. Mild ongoing toxicity is allowed in case of alopecia, skin toxicity, fatigue and/or finger numbness or tumbling. * Patients of child-bearing potential must agree to use a medically approved contraception method until at least six weeks after the last study drug administration. * Known deleterious germline mutation of BRCA1/2 (Patients in Cohorts A and A1) * Prior treatment with PARP inhibitors (Patients in Cohort A1)

Exclusion criteria

* Prior treatment with PM01183 or trabectedin. * Extensive prior RT. * Prior or concurrent malignant disease unless cured for more than five years. * Exceptions are breast cancer in the other breast. * Uncommon or rare subtypes of breast cancer. * Symptomatic or progressive brain metastases. * Bone-limited and exclusively metastases. * Relevant diseases or clinical situations which may increase patient's risk: History of cardiac disease. Moderate breathing difficulties or oxygen requirement Active uncontrolled infection. Unhealed wound or presence of any external drainage. Chronically active viral hepatitis. Immunocompromised patients, including those known to be infected by human immunodeficiency virus (HIV). Known muscular disease or functional alteration * Pregnant or breastfeeding women. * Impending need for immediate RT for symptomatic relief. * Limitation of the patient's ability to comply with the treatment or to follow-up the protocol.

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (ORR)Minimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollmentThe overall response rate is defined as the percentage of patients with a confirmed response, either complete response (CR) or partial response (PR), according to Response Evaluation Criteria In Solid Tumors Criteria (RECIST) v1.1. Per RECIST v1.1 for target lesions and assessed by MRI: CR, Disappearance of all target lesions; PR \>=30% decrease in the sum of the longest diameter of target lesions.
Overall ResponseMinimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollmentOverall Response Rate (ORR) in the population evaluable for efficacy according to RECIST v.1.1. ORR was defined as the percentage of patients with a confirmed response, either CR or PR, according to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions; SD, stable disease: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD; TF, treatment failure.

Secondary

MeasureTime frameDescription
Duration of Response Rate at 12 MonthsTime between the response criteria date and the date when disease progression, recurrence or death was documented, up to 12 monthsDuration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.
Clinical Benefit RateMinimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollmentClinical benefit, defined as the percentage of patients with ORR or SD lasting over three months (SD \>3 months). The overall response rate is defined as the percentage of patients with a confirmed response, either complete response (CR) or partial response (PR), according to Response Evaluation Criteria In Solid Tumors Criteria (RECIST) v1.1. Per RECIST v1.1 for target lesions and assessed by MRI: CR, Disappearance of all target lesions; PR \>=30% decrease in the sum of the longest diameter of target lesions. SD, stable disease: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.
Progression-free Survival (PFS)36 monthsProgression-free survival (PFS) is defined as the period of time from the date of first infusion to the date of progression disease, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Progression-free Survival at 3 MonthsTime from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 3 monthsProgression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Duration of ResponseMinimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollmentDuration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.
Progression-free Survival at 12 MonthsTime from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 12 monthsProgression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Overall Survival (OS)36 monthsOverall survival (OS) will be defined as time from the date of first infusion to the date of death or last contact
Overall Survival Rate at 12 MonthsTime from the date of first infusion to the date of death or last contact, up to 12 monthsOverall survival (OS), defined as the time from the date of first infusion to the date of death or last contact
Overall Survival Rate at 18 MonthsTime from the date of first infusion to the date of death or last contact, up to 18 monthsOverall survival (OS), defined as the time from the date of first infusion to the date of death or last contact.
Progression-free Survival at 6 MonthsTime from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 6 monthsProgression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Duration of Response Rate at 6 MonthsTime between the response criteria date and the date when disease progression, recurrence or death was documented, up to 6 monthsDuration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.

Countries

Spain, United States

Participant flow

Recruitment details

The first patient was included on 27JUN12 and the first study treatment administration was on 28JUN12. The cutoff date for the results was 24OCT18. A total of 111 patients were included in the 3 cohorts of the study: 56 in Cohort A (BRCA+), 20 in Cohort A1 (BRCA+/PARPi), 35 in Cohort B (Unselected).

Participants by arm

ArmCount
Cohort A (BRCA+)
Patients with known deleterious BRCA1/2 mutation status at study entry
56
Cohort A1 (BRCA+/PARPi)
Patients with known deleterious BRCA1/2 mutation status and prior treatment with PARPi.
20
Cohort B (Unselected)
Patients without known deleterious BRCA1/2 mutation status at study entry, i.e., either: * Patients known to have no deleterious BRCA1/2 mutations (BRCA-), or * Patients whose BRCA 1/2 mutation status was unknown (BRCA-UK). BRCA1/2 germline mutation status would be assessed in all patients in this subgroup responding to lurbinectedin treatment.
35
Total111

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyDeath002
Overall StudyNever treated200
Overall StudyNon-treatment-related AE100
Overall StudyOther reasons010
Overall StudyPhysician Decision422
Overall StudyProgressive disease481529
Overall StudyTreatment-related AE112
Overall StudyWithdrawal by Subject010

Baseline characteristics

CharacteristicTotalCohort A (BRCA+)Cohort A1 (BRCA+/PARPi)Cohort B (Unselected)
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
11 Participants5 Participants1 Participants5 Participants
Age, Categorical
Between 18 and 65 years
100 Participants51 Participants19 Participants30 Participants
Age, Continuous45.0 years42.5 years45.0 years52.0 years
Albumin4.1 g/dL4.1 g/dL4.1 g/dL4.0 g/dL
Body Surface Area1.72 m^21.72 m^21.63 m^21.75 m^2
BRCA deleterious mutation
Both
1 Participants0 Participants1 Participants0 Participants
BRCA deleterious mutation
BRCA1
43 Participants33 Participants10 Participants0 Participants
BRCA deleterious mutation
BRCA2
32 Participants23 Participants9 Participants0 Participants
BRCA deleterious mutation
Not applicable
35 Participants0 Participants0 Participants35 Participants
ECOG PS
PS 0
64 Participants32 Participants10 Participants22 Participants
ECOG PS
PS 1
47 Participants24 Participants10 Participants13 Participants
Height162.0 cm162.5 cm161.0 cm161.0 cm
Histology grade at diagnosis
Moderately differentiated
31 Participants10 Participants8 Participants13 Participants
Histology grade at diagnosis
Poorly differentiated
59 Participants31 Participants11 Participants17 Participants
Histology grade at diagnosis
Unknown
17 Participants12 Participants1 Participants4 Participants
Histology grade at diagnosis
Well differentiated
4 Participants3 Participants0 Participants1 Participants
Histology type at diagnosis
Ductal carcinoma
108 Participants54 Participants20 Participants34 Participants
Histology type at diagnosis
Lobular and ductal carcinoma
1 Participants0 Participants0 Participants1 Participants
Histology type at diagnosis
Lobular carcinoma
2 Participants2 Participants0 Participants0 Participants
Hormonal status
ER and/or PR positive and HER2 negative
47 Participants21 Participants12 Participants14 Participants
Hormonal status
ER and/or PR positive and HER2 positive
6 Participants2 Participants1 Participants3 Participants
Hormonal status
ER and PR negative and HER2 positive
1 Participants0 Participants0 Participants1 Participants
Hormonal status
Triple negative
57 Participants33 Participants7 Participants17 Participants
Number of sites at baseline3.0 sites3.0 sites3.0 sites2.0 sites
Prior radiotherapy94 Participants44 Participants18 Participants32 Participants
Prior surgery106 Participants53 Participants19 Participants34 Participants
Race/Ethnicity, Customized
Race
Asian
2 Participants1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Race
Black
3 Participants2 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Race
Caucasian
98 Participants50 Participants16 Participants32 Participants
Race/Ethnicity, Customized
Race
Hispanic
5 Participants2 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Race
Unknown
3 Participants1 Participants2 Participants0 Participants
Region of Enrollment
Spain
51 participants21 participants4 participants26 participants
Region of Enrollment
United States
60 participants35 participants16 participants9 participants
Sex: Female, Male
Female
111 Participants56 Participants20 Participants35 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants
Sites at baseline
<3 sites
51 Participants23 Participants7 Participants21 Participants
Sites at baseline
≥3 sites
60 Participants33 Participants13 Participants14 Participants
Sites of disease at diagnosis
Bilateral
4 Participants2 Participants0 Participants2 Participants
Sites of disease at diagnosis
Left breast
55 Participants26 Participants11 Participants18 Participants
Sites of disease at diagnosis
Right breast
52 Participants28 Participants9 Participants15 Participants
Stage at diagnosis
Stage I
12 Participants9 Participants3 Participants0 Participants
Stage at diagnosis
Stage II
48 Participants26 Participants9 Participants13 Participants
Stage at diagnosis
Stage III
41 Participants16 Participants6 Participants19 Participants
Stage at diagnosis
Stage IV
10 Participants5 Participants2 Participants3 Participants
Time from first diagnosis to registration46.5 months44.0 months55.7 months47.0 months
Time from last progression before study entry3.0 weeks2.9 weeks3.2 weeks3.0 weeks
Time from metastatic disease to registration14.8 months12.5 months26.1 months13.8 months
Weight68.1 Kg69.2 Kg59.8 Kg71.7 Kg

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
40 / 5413 / 2030 / 35
other
Total, other adverse events
54 / 5420 / 2034 / 35
serious
Total, serious adverse events
14 / 545 / 208 / 35

Outcome results

Primary

Overall Response

Overall Response Rate (ORR) in the population evaluable for efficacy according to RECIST v.1.1. ORR was defined as the percentage of patients with a confirmed response, either CR or PR, according to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions; SD, stable disease: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD; TF, treatment failure.

Time frame: Minimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollment

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort A (BRCA+)Overall ResponsePR20 Participants
Cohort A (BRCA+)Overall ResponseSD24 Participants
Cohort A (BRCA+)Overall ResponseCR2 Participants
Cohort A (BRCA+)Overall ResponseTF0 Participants
Cohort A (BRCA+)Overall ResponsePD8 Participants
Cohort A1 (BRCA+/PARPi)Overall ResponsePR1 Participants
Cohort A1 (BRCA+/PARPi)Overall ResponseCR0 Participants
Cohort A1 (BRCA+/PARPi)Overall ResponseSD9 Participants
Cohort A1 (BRCA+/PARPi)Overall ResponsePD10 Participants
Cohort A1 (BRCA+/PARPi)Overall ResponseTF0 Participants
Cohort B (Unselected)Overall ResponseTF1 Participants
Cohort B (Unselected)Overall ResponsePD13 Participants
Cohort B (Unselected)Overall ResponsePR3 Participants
Cohort B (Unselected)Overall ResponseSD17 Participants
Cohort B (Unselected)Overall ResponseCR0 Participants
Primary

Overall Response Rate (ORR)

The overall response rate is defined as the percentage of patients with a confirmed response, either complete response (CR) or partial response (PR), according to Response Evaluation Criteria In Solid Tumors Criteria (RECIST) v1.1. Per RECIST v1.1 for target lesions and assessed by MRI: CR, Disappearance of all target lesions; PR \>=30% decrease in the sum of the longest diameter of target lesions.

Time frame: Minimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollment

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Overall Response Rate (ORR)40.7 percentage
Cohort A1 (BRCA+/PARPi)Overall Response Rate (ORR)5.0 percentage
Cohort B (Unselected)Overall Response Rate (ORR)8.8 percentage
Secondary

Clinical Benefit Rate

Clinical benefit, defined as the percentage of patients with ORR or SD lasting over three months (SD \>3 months). The overall response rate is defined as the percentage of patients with a confirmed response, either complete response (CR) or partial response (PR), according to Response Evaluation Criteria In Solid Tumors Criteria (RECIST) v1.1. Per RECIST v1.1 for target lesions and assessed by MRI: CR, Disappearance of all target lesions; PR \>=30% decrease in the sum of the longest diameter of target lesions. SD, stable disease: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.

Time frame: Minimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollment

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Clinical Benefit Rate61.1 percentage of participants
Cohort A1 (BRCA+/PARPi)Clinical Benefit Rate40.0 percentage of participants
Cohort B (Unselected)Clinical Benefit Rate32.4 percentage of participants
Secondary

Duration of Response

Duration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.

Time frame: Minimum 10-12 months if negative results and up to 26-28 months if study is to be complete the targeted enrollment

Population: Responder patients (PR or CR, whichever was first reached)

ArmMeasureValue (MEDIAN)
Cohort A (BRCA+)Duration of Response6.3 months
Cohort A1 (BRCA+/PARPi)Duration of Response2.7 months
Cohort B (Unselected)Duration of Response3.6 months
p-value: 0.0909Log Rank
Secondary

Duration of Response Rate at 12 Months

Duration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.

Time frame: Time between the response criteria date and the date when disease progression, recurrence or death was documented, up to 12 months

Population: Responder patients

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Duration of Response Rate at 12 Months33.8 percentage of participants
Cohort A1 (BRCA+/PARPi)Duration of Response Rate at 12 Months0 percentage of participants
Cohort B (Unselected)Duration of Response Rate at 12 Months33.3 percentage of participants
Secondary

Duration of Response Rate at 6 Months

Duration of response (DoR), defined as the time between the date when the response criteria (PR or CR, whichever was first reached) were fulfilled to the first date when disease progression (PD), recurrence or death was documented. According to the RECIST v.1.1 for target lesions and assessed by MRI: CR, complete response: Disappearance of all target lesions; PD, progressive disease: 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; PR, partial response: \>=30% decrease in the sum of the longest diameter of target lesions.

Time frame: Time between the response criteria date and the date when disease progression, recurrence or death was documented, up to 6 months

Population: Responder patients

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Duration of Response Rate at 6 Months53.1 percentage of participants
Cohort A1 (BRCA+/PARPi)Duration of Response Rate at 6 Months0 percentage of participants
Cohort B (Unselected)Duration of Response Rate at 6 Months33.3 percentage of participants
Secondary

Overall Survival (OS)

Overall survival (OS) will be defined as time from the date of first infusion to the date of death or last contact

Time frame: 36 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (MEDIAN)
Cohort A (BRCA+)Overall Survival (OS)18.6 months
Cohort A1 (BRCA+/PARPi)Overall Survival (OS)8.1 months
Cohort B (Unselected)Overall Survival (OS)12.1 months
p-value: 0.0561Log Rank
Secondary

Overall Survival Rate at 12 Months

Overall survival (OS), defined as the time from the date of first infusion to the date of death or last contact

Time frame: Time from the date of first infusion to the date of death or last contact, up to 12 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Overall Survival Rate at 12 Months62.5 percentage of participants
Cohort A1 (BRCA+/PARPi)Overall Survival Rate at 12 Months29.7 percentage of participants
Cohort B (Unselected)Overall Survival Rate at 12 Months55.4 percentage of participants
Secondary

Overall Survival Rate at 18 Months

Overall survival (OS), defined as the time from the date of first infusion to the date of death or last contact.

Time frame: Time from the date of first infusion to the date of death or last contact, up to 18 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Overall Survival Rate at 18 Months53.4 percentage of participants
Cohort A1 (BRCA+/PARPi)Overall Survival Rate at 18 Months22.3 percentage of participants
Cohort B (Unselected)Overall Survival Rate at 18 Months27.7 percentage of participants
Secondary

Progression-free Survival at 12 Months

Progression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: Time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 12 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Progression-free Survival at 12 Months20.5 percentage of participants
Cohort A1 (BRCA+/PARPi)Progression-free Survival at 12 Months0 percentage of participants
Cohort B (Unselected)Progression-free Survival at 12 Months3.7 percentage of participants
Secondary

Progression-free Survival at 3 Months

Progression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: Time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 3 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Progression-free Survival at 3 Months63.5 percentage of participants
Cohort A1 (BRCA+/PARPi)Progression-free Survival at 3 Months42.5 percentage of participants
Cohort B (Unselected)Progression-free Survival at 3 Months35.5 percentage of participants
Secondary

Progression-free Survival at 6 Months

Progression-free survival (PFS), defined as the period of time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: Time from the date of first infusion to the date of PD, death (due to any cause), or last tumor evaluation, up to 6 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (NUMBER)
Cohort A (BRCA+)Progression-free Survival at 6 Months37.6 percentage of participants
Cohort A1 (BRCA+/PARPi)Progression-free Survival at 6 Months21.3 percentage of participants
Cohort B (Unselected)Progression-free Survival at 6 Months11.1 percentage of participants
Secondary

Progression-free Survival (PFS)

Progression-free survival (PFS) is defined as the period of time from the date of first infusion to the date of progression disease, death (due to any cause), or last tumor evaluation. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: 36 months

Population: Cohort A: Two patients never treated; Cohort B: 1 patient due to lack of post-baseline tumor assessments

ArmMeasureValue (MEDIAN)
Cohort A (BRCA+)Progression-free Survival (PFS)4.6 months
Cohort A1 (BRCA+/PARPi)Progression-free Survival (PFS)1.4 months
Cohort B (Unselected)Progression-free Survival (PFS)2.5 months
p-value: 0.002Log Rank

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026