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Efficacy and Safety of AP 12009 in Patients With Recurrent or Refractory Anaplastic Astrocytoma or Secondary Glioblastoma

Efficacy and Safety of AP 12009 in Adult Patients With Recurrent or Refractory Anaplastic Astrocytoma or Secondary Glioblastoma as Compared to Standard Chemotherapy Treatment: A Randomized, Actively Controlled, Open Label Clinical Phase III Study.

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00761280
Acronym
SAPPHIRE
Enrollment
27
Registered
2008-09-29
Start date
2008-12-31
Completion date
2012-06-30
Last updated
2014-11-14

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

Conditions

Anaplastic Astrocytoma, Glioblastoma

Keywords

Anaplastic astrocytoma, Glioblastoma, Antisense, Cancer, Transforming Growth Factor beta 2, Targeted therapy, Brain tumor, Glioma, Central Nervous System (CNS), Convection Enhanced Delivery (CED), Intratumoral administration

Brief summary

In this multinational Phase III study the efficacy and safety of 10 µM AP 12009 is compared to standard chemotherapy (temozolomide or BCNU or CCNU) in adult patients with confirmed recurrent or refractory anaplastic astrocytoma (WHO grade III) or secondary glioblastoma (WHO grade IV).

Detailed description

The purpose of this study is to compare the safety and efficacy of the 10 µM concentration of AP 12009 and standard chemotherapy (temozolomide, BCNU, CCNU) in adult patients with recurrent or refractory anaplastic astrocytoma (AA, WHO grade III) or secondary glioblastoma (GBM, WHO grade IV). AP 12009 (trabedersen) is a phosphorothioate antisense oligodeoxynucleotide specific for the mRNA of human Transforming Growth Factor beta 2 (TGF-beta-2), which is applied intratumorally. The growth factor TGF-beta plays a key role in malignant progression of various tumors by inducing proliferation, invasion, metastasis, angiogenesis, and escape from immunosurveillance. In patients with high-grade glioma, the TGF-beta-2 overexpression is associated with disease stage, clinical prognosis, and the immunodeficient state of the patients. Main objective of the study is to determine survival (rate) and tumor response. Important note: Due to early trial termination, resulting in limited data availability, all analyses remain descriptive by nature, only. No conclusive endpoint analysis can be performed.

Interventions

DRUGtemozolomide

Drug delivery system for Convection Enhanced Delivery consists of a portable pump (Pegasus vario or Pega vario) with drug reservoir (Pega Bag) and infusion line (Pega Line). Main implanted parts are the port access system (PORT-A-CATH) and the intratumoral catheter (Medtronic ventricular catheter).

Surgery for placement of intratumoral catheter and subcutaneous port access system as per routine clinical practice. Stereotactical catheter placement controlled by CT.

DRUGcarmustine
DRUGlomustine

Sponsors

Isarna Therapeutics GmbH
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* The patient has provided written informed consent prior to any study-related procedure. * The patient is at least 18 years of age and equal to or below 70 years. * The patient has a present diagnosis of AA or secondary GBM. * The patient has a measurable lesion (\> 1 ccm in volume, central MRI review). * The lesion (or sum of lesions) does not exceed 50 ccm in volume (central MRI review). * The tumor is localized supratentorially (central MRI review). * All patients have recurrent or refractory disease, i.e. disease has progressed after prior surgery and radiotherapy at any time of the disease course or stage. Secondary GBM patients have progressed after a previous diagnosis of A and/or AA. * The patient has not received more than one chemotherapy regimen. Radiation with concomitant chemotherapy, followed by adjuvant chemotherapy, is considered as one chemotherapy regimen. * The patient is eligible for chemotherapy. * The patient is on a maximum dose of 4 mg/day dexamethasone or equivalent doses for other corticosteroids, which has been stable or decreasing for at least 3 weeks prior to Screening. * The patient is male or a non-pregnant, non-lactating female. * Females of childbearing potential must have a negative beta-HCG pregnancy test at Screening. * Females of childbearing potential and males must practice strict birth control. * The patient must have recovered from acute toxicity caused by any previous therapy. * The patient has a life expectancy of at least 3 months. * The patient has a Karnofsky Performance Status of at least 70%. * The patient shows adequate organ functions as assessed by the following screening laboratory values: 1. Adequate renal function determined by serum creatinine and urea \< 2 times the upper limit of normal 2. Adequate liver function with ALT, AST and AP \< 3 times the upper limit of normal, and bilirubin \< 2.5 mg/dL 3. INR \< 1.5 and aPTT \< 1.5 x ULN 4. Hemoglobin \> 9 g/dL 5. Platelet count \> 100 x 10E9/L 6. WBC \> 3 x 10E9/L 7. ANC \> 1.5 x 10E9/L (or WBC \> 3.0 x 10E9/L)

Exclusion criteria

* Patient unable or not willing to comply with the protocol regulations. * The investigator deems it necessary to surgically (re-)resect the present tumor (NOTE: the patient might still be eligible for randomization at a later timepoint). * Tumor surgery, tumor debulking, or other neurosurgery within 3 months prior to randomization. If a ≤48-hour routine post-surgery MRI (in accordance with study specifications) qualifies the patient for study participation, the patient can be randomized 30 ± 7 days post-surgery. * Radiotherapy or stereotactic (gamma knife) radiosurgery within 3 months prior to randomization. * Prior interstitial brachytherapy of the brain with permanent implants. Prior interstitial brachytherapy of the brain with removable implants within 3 months prior to randomization. * Chemotherapy, hormone therapy, or any other therapy with established or suggested anti-tumor effects within 4 weeks (nitrosoureas: 6 weeks) prior to randomization. * Prior anti-TGF-beta 2 targeted therapy. * Screening MRI shows a mass effect caused by the tumor defined as significant compression of the ventricular system and/or a midline shift (≥ 3 mm, central MRI review). Compression of the ventricular system and/or a midline shift ≥ 3 mm only due to the presence of (a) cyst(s) or scarring processes does not exclude an individual from the study. * Participation in another clinical study with another investigational medicinal product within 30 days prior to randomization. * History of a second independent malignant disorder within 5 years, except for carcinoma in situ of the cervix and basal cell carcinoma. * Presence of poorly controlled seizures. * Clinically relevant cardiovascular abnormalities such as uncontrolled hypertension, congestive heart failure, unstable angina, or poorly controlled arrhythmia. Myocardial infarction within 6 months prior to randomization. * Known HIV, HBV or HCV infection. * Acute viral, bacterial, or fungal infection. * Acute medical problems that may be considered to become an unacceptable risk, or any conditions, which might be contraindications for starting study treatment. * Presence of high risk for pulmonary toxicities, defined as: 1. Lung function: vital capacity ≤ 70% 2. Status following sequential or concomitant thoracic irradiation 3. Increased risk for a pulmonary toxicity induced by BCNU (Carmustine) or CCNU (Lomustine). Risk factors include smoking, presence of a respiratory condition, pre-existing radiographic pulmonary abnormalities, exposure to agents that cause lung damage. * History of allergies to reagents used in this study, history of celiac disease. * Drug abuse or extensive use of alcohol. * Clinically relevant psychiatric disorders / legal incapacity or a limited legal capacity. * Concomitant treatment with yellow fever vaccine.

Design outcomes

Primary

MeasureTime frameDescription
Survival Rate at 24 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)24 monthsSurvival rate was defined as the proportion of participants known to be alive at 24 months from randomization. If a participant's status was unknown and there was no follow-up information available, they were categorized as 'Died' for the purposes of the analysis.
Survival at 24 Months in the Intent-to-treat Population - Number of Participants24 monthsSurvival status was assessed at 24 months from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead. The category Lost to / insufficient follow-up includes participants who were alive at last data collection point but did not yet have enough follow-up time to reach the 24 month time point.

Secondary

MeasureTime frameDescription
Median Overall Survival (Days) From Randomization in the Intent-to-treat Population (Descriptive Analysis, Only)Up to 24 monthsMedian overall survival was defined as the date of randomization to the date of death. If a participant's status was unknown and there was no follow-up information available, they were categorized as 'Died' for the purposes of the analysis. Analysis was by Kaplan-Meier estimation.
Response Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsUp to 24 monthsTumor response was classified based on the (neuro-)radiologist's evaluation according to the Macdonald Response Criteria for bidimensionally measurable disease as outlined below: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Two qualified neuro-radiologists reviewed scans at each MRI time point, with adjudication of discrepancies by a third reviewer. Their findings and clinical information were independently reviewed by a neuro-oncologist, who made the assessment of overall response.
Overall Response Rate (CR+PR) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Up to 24 monthsOverall response rate was the proportion of participants with a best response of Complete Response (CR) or Partial Response (PR) observed from the start of treatment until disease progression.
Tumor Control Rate (CR+PR+SD) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Up to 24 monthsTumor control rate was defined as the proportion of participants assessed as having Complete Response (CR), Partial Response (PR), or Stable Disease (SD). Participants with unknown or missing response were treated as non-responders.
Survival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)12, 18, and 21 monthsSurvival rate was defined as the proportion of participants known to be alive at each time-point from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead.
Disease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of Participants10, 12, 14, 16, 18, 21, and 24 monthsTumor response was classified based on the (neuro-)radiologist's evaluation: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Based on clinical and imaging data, an independent neuro-oncologist made the final assessment of Progressed versus Not Progressed. Participants who had MRI assessment results missing or unknown were UNK or missing, and were treated as Progressed for the purposes of the calculation.
Disease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)10, 12, 14, 16, 18, 21 and 24 monthsTumor response was classified based on the (neuro-)radiologist's evaluation: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Based on clinical and imaging data, an independent neuro-oncologist made the final assessment of Progressed versus Not Progressed. Participants who had MRI assessment results missing or unknown were UNK or missing, and were treated as Progressed for the purposes of the calculation.
Median Time to Progression (Days) by Independent Review for the Intent-to-treat Population (Descriptive Analysis, Only)Up to 24 monthsTime to progression was calculated from the date of randomization to the date of the first documented tumor progression. Participants who did not progress or died were censored at the last tumor assessment date or the date of start of a new anti-tumor treatment or death.
Median Duration of Response (Days) by Independent Review (Descriptive Analysis, Only)Up to 24 monthsDuration of response was defined as the time from the first documentation of confirmed response (Complete Response, CR, or Partial Response, PR) to the first signs of Progressive Disease (PD), as assessed by the study neuro-oncologist. Median Duration of Response was calculated by Kaplan-Meier estimate. Censoring rules were: * at the date of randomization -- participants without baseline assessments, or for those with no post-baseline timor assessments who were discontinued for other than progressive disease or death. * at the date of last tumor assessment -- discontinuation other than PD or death, or if a new treatment was started prior to disease progression * at the date of death or last tumor assessment -- death or PD after one missed tumor assessment * at the date of last tumor assessment -- death or PD after more than one missed tumor assessment * at the date of last tumor assessment -- participants on ongoing treatment at data cut-off
Survival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of Participants12, 18, and 21 monthsSurvival status was assessed at each time-point from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead. The category Lost to follow-up for each time-point includes participants who were alive at the last data collection point but did not yet have enough follow-up time to reach the time point.

Countries

Argentina, Austria, Brazil, Canada, France, Germany, Hungary, India, Mexico, Poland, Russia, South Korea, Spain, Taiwan, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Trabedersen 10 µM
10 µM trabedersen (AP 12009), intratumoral infusion, every other week, 11 cycles, maximum 21 weeks. Drug delivery system for administration of AP 12009: Drug delivery system for Convection Enhanced Delivery consists of a portable pump (Pegasus vario or Pega vario) with drug reservoir (Pega Bag) and infusion line (Pega Line). Main implanted parts are the port access system (PORT-A-CATH) and the intratumoral catheter (Medtronic ventricular catheter). Placement of Drug Delivery System: Surgery for placement of intratumoral catheter and subcutaneous port access system as per routine clinical practice. Stereotactical catheter placement controlled by CT.
14
Chemotherapy
Temozolomide: capsules, up to 200 mg/sqm/day, 5 days per cycle, up to 26 cycles. OR carmustine: i.v. administration, up to 200 mg/sqm/day, 1 day per cycle, up to 8 cycles; OR lomustine: capsules, 110 mg/sqm/day, 1 day per cycle, up to 8 cycles. Only 1 of these 3 drugs/interventions is administered per patient in the comparator arm.
13
Total27

Withdrawals & dropouts

PeriodReasonFG000FG001
First Dose to End of StudyDeath10
First Dose to End of StudyEnd of trial55
First Dose to End of StudyLost to Follow-up01
First Dose to End of StudyProgressive disease53
First Dose to End of StudySponsor decision12
Randomization to First DoseOther10
Randomization to First DoseSponsor decision10
Randomization to First DoseWithdrawal by Subject02

Baseline characteristics

CharacteristicChemotherapyTrabedersen 10 µMTotal
Age, Continuous40.8 years
STANDARD_DEVIATION 11.63
38.2 years
STANDARD_DEVIATION 12.72
39.5 years
STANDARD_DEVIATION 12.05
Diagnosis of Anaplastic Astrocytoma (AA) World Health Organization (WHO) Grade III
Recurrent
10 participants11 participants21 participants
Diagnosis of Anaplastic Astrocytoma (AA) World Health Organization (WHO) Grade III
Refractory
2 participants3 participants5 participants
Diagnosis of other brain tumor prior to diagnosis of Anaplastic Astrocytoma WHO Grade III
AA WHO Grade I
0 participants0 participants0 participants
Diagnosis of other brain tumor prior to diagnosis of Anaplastic Astrocytoma WHO Grade III
AA WHO Grade II
0 participants1 participants1 participants
Diagnosis of other brain tumor prior to diagnosis of Anaplastic Astrocytoma WHO Grade III
Not diagnosed with Other Brain Tumor
12 participants12 participants24 participants
Diagnosis of other brain tumor prior to diagnosis of Anaplastic Astrocytoma WHO Grade III
Other diagnosis
0 participants1 participants1 participants
Diagnosis of Secondary Glioblastoma Multiforme (GBM) (WHO Grade IV)1 participants0 participants1 participants
Height (cm) (Descriptive analysis, only)170.29 cm
STANDARD_DEVIATION 10.019
172.57 cm
STANDARD_DEVIATION 9.913
171.52 cm
STANDARD_DEVIATION 9.829
One or more Prior Chemotherapy
No
4 participants4 participants8 participants
One or more Prior Chemotherapy
Yes
9 participants10 participants19 participants
One or more Prior Immunotherapy
No
12 participants13 participants25 participants
One or more Prior Immunotherapy
Yes
1 participants1 participants2 participants
One or more Prior Radiotherapy Regimens13 participants14 participants27 participants
One or more Prior Surgical Treatments
No
1 participants0 participants1 participants
One or more Prior Surgical Treatments
Yes
12 participants14 participants26 participants
Previous diagnosis of Astrocytoma or AA before diagnosis of Secondary Glioblastoma Multiforme
Previous diagnosis of Anaplastic Astrocytoma
1 participants0 participants1 participants
Previous diagnosis of Astrocytoma or AA before diagnosis of Secondary Glioblastoma Multiforme
Previous diagnosis of Astrocytoma
0 participants0 participants0 participants
Race/Ethnicity, Customized
American Indian or Native Alaskan
0 participants0 participants0 participants
Race/Ethnicity, Customized
Asian
2 participants6 participants8 participants
Race/Ethnicity, Customized
Black
0 participants0 participants0 participants
Race/Ethnicity, Customized
Hispanic or Latino
1 participants0 participants1 participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 participants0 participants0 participants
Race/Ethnicity, Customized
White
10 participants8 participants18 participants
Region of Enrollment
Austria
1 participants0 participants1 participants
Region of Enrollment
Canada
1 participants0 participants1 participants
Region of Enrollment
Germany
2 participants1 participants3 participants
Region of Enrollment
India
2 participants6 participants8 participants
Region of Enrollment
Israel
1 participants0 participants1 participants
Region of Enrollment
Mexico
1 participants0 participants1 participants
Region of Enrollment
Poland
0 participants2 participants2 participants
Region of Enrollment
Russian Federation
4 participants4 participants8 participants
Region of Enrollment
Spain
1 participants1 participants2 participants
Sex: Female, Male
Female
5 Participants5 Participants10 Participants
Sex: Female, Male
Male
8 Participants9 Participants17 Participants
Time of first diagnosis of AA WHO Grade III (years) (Descriptive analysis, only)1.81 years
STANDARD_DEVIATION 1.194
1.71 years
STANDARD_DEVIATION 1.11
1.75 years
STANDARD_DEVIATION 1.124
Time to first diagnosis of Secondary GBM (years) (Descriptive analysis, only)0.03 yearsNA years0.03 years
Weight (kg) (Descriptive analysis, only)71.62 kg
STANDARD_DEVIATION 14.213
75.34 kg
STANDARD_DEVIATION 17.265
73.62 kg
STANDARD_DEVIATION 15.731

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
12 / 139 / 11
serious
Total, serious adverse events
6 / 130 / 11

Outcome results

Primary

Survival at 24 Months in the Intent-to-treat Population - Number of Participants

Survival status was assessed at 24 months from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead. The category Lost to / insufficient follow-up includes participants who were alive at last data collection point but did not yet have enough follow-up time to reach the 24 month time point.

Time frame: 24 months

Population: The Intent-to-treat population includes all participants randomized. Early study discontinuation with site closures led to a high proportion of participants being censored or lost to follow-up in the initial analysis. Additional survival data were collected in a post-hoc fashion under a protocol amendment. These data are presented.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMSurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsAlive4 participants
Trabedersen 10 µMSurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsDied7 participants
Trabedersen 10 µMSurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsLost to/insufficient follow-up3 participants
ChemotherapySurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsAlive2 participants
ChemotherapySurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsDied5 participants
ChemotherapySurvival at 24 Months in the Intent-to-treat Population - Number of ParticipantsLost to/insufficient follow-up6 participants
Primary

Survival Rate at 24 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)

Survival rate was defined as the proportion of participants known to be alive at 24 months from randomization. If a participant's status was unknown and there was no follow-up information available, they were categorized as 'Died' for the purposes of the analysis.

Time frame: 24 months

Population: The Intent-to-treat population includes all participants randomized. Early study discontinuation with site closures led to a high proportion of participants being censored or lost to follow-up in the initial analysis. Additional survival data were collected in a post-hoc fashion under a protocol amendment. These data are presented.

ArmMeasureValue (NUMBER)
Trabedersen 10 µMSurvival Rate at 24 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)28.6 percentage of participants
ChemotherapySurvival Rate at 24 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)15.4 percentage of participants
Secondary

Disease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of Participants

Tumor response was classified based on the (neuro-)radiologist's evaluation: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Based on clinical and imaging data, an independent neuro-oncologist made the final assessment of Progressed versus Not Progressed. Participants who had MRI assessment results missing or unknown were UNK or missing, and were treated as Progressed for the purposes of the calculation.

Time frame: 10, 12, 14, 16, 18, 21, and 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 16 months5 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 12 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 16 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 14 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 18 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 10 months3 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 18 months2 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 14 months2 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 18 months5 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 12 months2 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 18 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 14 months5 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 21 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 10 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 21 months1 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 14 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 21 months6 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 12 months5 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 21 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 16 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 24 months7 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 10 months4 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 24 months1 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 16 months2 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 24 months6 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 12 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 24 months0 participants
Trabedersen 10 µMDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 10 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 24 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 10 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 10 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 10 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 10 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 12 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 12 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 12 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 12 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 14 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 14 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 14 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 14 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 16 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 16 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 16 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 16 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 18 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 18 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 18 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 18 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 21 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 21 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 21 months7 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 21 months1 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressed at 24 months5 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsNot progressed at 24 months0 participants
ChemotherapyDisease Progression at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Number of ParticipantsStatus unknown / missing at 24 months7 participants
Secondary

Disease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)

Tumor response was classified based on the (neuro-)radiologist's evaluation: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Based on clinical and imaging data, an independent neuro-oncologist made the final assessment of Progressed versus Not Progressed. Participants who had MRI assessment results missing or unknown were UNK or missing, and were treated as Progressed for the purposes of the calculation.

Time frame: 10, 12, 14, 16, 18, 21 and 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 14 months85.7 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 18 months85.7 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 12 months85.7 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 21 months92.9 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 16 months85.7 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 24 months92.9 percentage of participants
Trabedersen 10 µMDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 10 months78.6 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 24 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 10 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 12 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 14 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 16 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 18 months100.0 percentage of participants
ChemotherapyDisease Progression Rate at 10, 12, 14, 16, 18, 21, and 24 Months by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Progression rate at 21 months100.0 percentage of participants
Secondary

Median Duration of Response (Days) by Independent Review (Descriptive Analysis, Only)

Duration of response was defined as the time from the first documentation of confirmed response (Complete Response, CR, or Partial Response, PR) to the first signs of Progressive Disease (PD), as assessed by the study neuro-oncologist. Median Duration of Response was calculated by Kaplan-Meier estimate. Censoring rules were: * at the date of randomization -- participants without baseline assessments, or for those with no post-baseline timor assessments who were discontinued for other than progressive disease or death. * at the date of last tumor assessment -- discontinuation other than PD or death, or if a new treatment was started prior to disease progression * at the date of death or last tumor assessment -- death or PD after one missed tumor assessment * at the date of last tumor assessment -- death or PD after more than one missed tumor assessment * at the date of last tumor assessment -- participants on ongoing treatment at data cut-off

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureValue (MEDIAN)
Trabedersen 10 µMMedian Duration of Response (Days) by Independent Review (Descriptive Analysis, Only)NA days
ChemotherapyMedian Duration of Response (Days) by Independent Review (Descriptive Analysis, Only)NA days
Secondary

Median Overall Survival (Days) From Randomization in the Intent-to-treat Population (Descriptive Analysis, Only)

Median overall survival was defined as the date of randomization to the date of death. If a participant's status was unknown and there was no follow-up information available, they were categorized as 'Died' for the purposes of the analysis. Analysis was by Kaplan-Meier estimation.

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized. Early study discontinuation with site closures led to a high proportion of participants being censored or lost to follow-up in the initial analysis. Additional survival data were collected in a post-hoc fashion under a protocol amendment. These data are presented.

ArmMeasureValue (MEDIAN)
Trabedersen 10 µMMedian Overall Survival (Days) From Randomization in the Intent-to-treat Population (Descriptive Analysis, Only)458.0 days
ChemotherapyMedian Overall Survival (Days) From Randomization in the Intent-to-treat Population (Descriptive Analysis, Only)584.5 days
Secondary

Median Time to Progression (Days) by Independent Review for the Intent-to-treat Population (Descriptive Analysis, Only)

Time to progression was calculated from the date of randomization to the date of the first documented tumor progression. Participants who did not progress or died were censored at the last tumor assessment date or the date of start of a new anti-tumor treatment or death.

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureValue (MEDIAN)
Trabedersen 10 µMMedian Time to Progression (Days) by Independent Review for the Intent-to-treat Population (Descriptive Analysis, Only)57.0 days
ChemotherapyMedian Time to Progression (Days) by Independent Review for the Intent-to-treat Population (Descriptive Analysis, Only)153.5 days
Secondary

Overall Response Rate (CR+PR) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)

Overall response rate was the proportion of participants with a best response of Complete Response (CR) or Partial Response (PR) observed from the start of treatment until disease progression.

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureValue (NUMBER)
Trabedersen 10 µMOverall Response Rate (CR+PR) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)14.3 percentage of participants
ChemotherapyOverall Response Rate (CR+PR) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)7.7 percentage of participants
Secondary

Response Category by Independent Review in the Intent-to-treat Population - Number of Participants

Tumor response was classified based on the (neuro-)radiologist's evaluation according to the Macdonald Response Criteria for bidimensionally measurable disease as outlined below: * Complete Response (CR): Disappearance of all enhancing tumor on consecutive MRI scans at least 1 month apart, off steroids, neurologically stable or improved. * Partial Response (PR): ≥50% reduction in size of enhancing tumor on consecutive MRI scans at least 1 month apart, steroids stable or reduced, neurologically stable or improved. * Progressive Disease (PD): ≥25% increase in size of enhancing tumor or any new tumor on MRI scans, steroids stable or increased, neurologically worse. * Stable Disease (SD): all other situations. Two qualified neuro-radiologists reviewed scans at each MRI time point, with adjudication of discrepancies by a third reviewer. Their findings and clinical information were independently reviewed by a neuro-oncologist, who made the assessment of overall response.

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsComplete Response (CR)0 participants
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsPartial Response (PR)2 participants
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsStable Disease (SD)2 participants
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressive Disease (PD)7 participants
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsUnknown1 participants
Trabedersen 10 µMResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsMissing2 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsUnknown3 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsComplete Response (CR)0 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsProgressive Disease (PD)1 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsPartial Response (PR)1 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsMissing2 participants
ChemotherapyResponse Category by Independent Review in the Intent-to-treat Population - Number of ParticipantsStable Disease (SD)6 participants
Secondary

Survival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of Participants

Survival status was assessed at each time-point from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead. The category Lost to follow-up for each time-point includes participants who were alive at the last data collection point but did not yet have enough follow-up time to reach the time point.

Time frame: 12, 18, and 21 months

Population: The Intent-to-treat population includes all participants randomized. Early study discontinuation with site closures led to a high proportion of participants being censored or lost to follow-up in the initial analysis. Additional survival data were collected in a post-hoc fashion under a protocol amendment. These data are presented.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 12 months5 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 18 months1 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 18 months6 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 21 months5 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 12 months1 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 21 months7 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 18 months7 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 21 months2 participants
Trabedersen 10 µMSurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 12 months8 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 21 months5 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 12 months7 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 12 months1 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 12 months5 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 18 months5 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 18 months3 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsLost to follow-up at 18 months5 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsAlive at 21 months3 participants
ChemotherapySurvival at 12, 18, and 21 Months in the Intent-to-treat Population - Number of ParticipantsDied at 21 months5 participants
Secondary

Survival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)

Survival rate was defined as the proportion of participants known to be alive at each time-point from randomization. Participants with unknown or missing status were considered treatment failures, i.e., assumed to be dead.

Time frame: 12, 18, and 21 months

Population: The Intent-to-treat population includes all participants randomized. Early study discontinuation with site closures led to a high proportion of participants being censored or lost to follow-up in the initial analysis. Additional survival data were collected in a post-hoc fashion under a protocol amendment. These data are presented.

ArmMeasureGroupValue (NUMBER)
Trabedersen 10 µMSurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 12 months57.1 percentage of participants
Trabedersen 10 µMSurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 18 months42.9 percentage of participants
Trabedersen 10 µMSurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 21 months35.7 percentage of participants
ChemotherapySurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 12 months53.8 percentage of participants
ChemotherapySurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 18 months38.5 percentage of participants
ChemotherapySurvival Rate at 12, 18, and 21 Months in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)Survival rates at 21 months23.1 percentage of participants
Secondary

Tumor Control Rate (CR+PR+SD) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)

Tumor control rate was defined as the proportion of participants assessed as having Complete Response (CR), Partial Response (PR), or Stable Disease (SD). Participants with unknown or missing response were treated as non-responders.

Time frame: Up to 24 months

Population: The Intent-to-treat population includes all participants randomized.

ArmMeasureValue (NUMBER)
Trabedersen 10 µMTumor Control Rate (CR+PR+SD) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)28.6 percentage of participants
ChemotherapyTumor Control Rate (CR+PR+SD) by Independent Review in the Intent-to-treat Population - Percentage of Participants (Descriptive Analysis, Only)53.8 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026