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Evaluation of efficacy and safety of the new drug AP 12009 in adult patients suffering from Recurrent or Refractory Anaplastic Astrocytoma (WHO grade III) or Secondary Glioblastoma (WHO grade IV) compared to standard treatment with Temozolomide or Lomustine: A clinical study where patients will be openly and randomly assigned to one of the treatment groups to gain marketing approval for the new drug AP 12009.

Efficacy and Safety of AP 12009 in Adult Patients with Recurrent or Refractory Anaplastic Astrocytoma (WHO grade III) or Secondary Glioblastoma (WHO grade IV) as Compared to Standard Chemotherapy: A Randomized, Actively Controlled, Open Label Clinical Phase III Study. - SAPPHIRE

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-005802-38-AT
Enrollment
180
Registered
2008-06-23
Start date
2009-03-19
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Recurrent or Refractory Anaplastic Astrocytoma (WHO grade III) or secondary Glioblastoma (WHO grade IV) MedDRA version: 14.0 Level: PT Classification code 10018336 Term: Glioblastoma System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) MedDRA version: 14.0 Level: PT Classification code 10002224 Term: Anaplastic astrocytoma System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Product Name: AP 12009 Product Code: AP 12009 Pharmaceutical Form: Powder for solution for infusion INN or Proposed INN: trabedersen CAS Number: 92681-61-4 Current Sponsor code: AP 12009 Concentration

Sponsors

Antisense Pharma GmbH
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. The patient has provided written informed consent prior to any study-related procedure. 2. The patient is at least 18 years of age and equal to or below 70 years. 3. The patient has a present diagnosis of AA or secondary GBM. 4. The patient has a measurable lesion (> 1 cm3 in volume, central MRI review). 5. The lesion (or sum of lesions) does not exceed 50 cm3 in volume (central MRI review). 6. The tumor is localized supratentorially (central MRI review). 7. 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 (e.g. prior grade II tumor). Secondary GBM patients have progressed after a previous diagnosis of A and/or AA. In case of recent tumor surgery a = 48-hour routine post-surgery MRI (in accordance with study specifications) confirming inclusion criteria 4, 5, and 6 qualifies the patient for study randomization 30 ± 7 days after surgery. 8. The patient has not received more than 2 chemotherapy regimens. Radiation with concomitant chemotherapy, followed by adjuvant chemotherapy, is considered as one chemotherapy regimen. 9. The patient is eligible for chemotherapy. 10. 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. 11. The patient is male or a non-pregnant, non-lactating female. 12. 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 (see Section 8.2). 13. The patient must have recovered from acute toxicity caused by any previous therapy. 14. The patient has a life expectancy of at least 3 months. 15. The patient has a Karnofsky Performance Status of at least 70%. 16. The patient shows adequate organ functions as assessed by the following screening laboratory values: a. Adequate renal function determined by serum creatinine and urea 9 g/dL e. Platelet count > 100 x 1 000 000 000/L f. WBC > 3 x 1 000 000 000/L g. ANC > 1.5 x 1 000 000 000/L (or WBC > 3.0 x 1 000 000 000/L) Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 117 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 63

Exclusion criteria

Exclusion criteria: 1. Patient unable or not willing to comply with the protocol regulations. 2. 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, see inclusion criterion 7 and exclusion criterion 3). 3. 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 (see inclusion criterion 7), the patient can be randomized 30 ± 7 days post-surgery. 4. Radiotherapy or stereotactic (gamma knife) radiosurgery within 3 months prior to randomization. 5. Prior interstitial brachytherapy of the brain with permanent implants. Prior interstitial brachytherapy of the brain with removable implants within 3 months prior to randomization. 6. Chemotherapy, hormone therapy, or any other therapy with established or suggested anti-tumor effects within 4 weeks (nitrosoureas: 6 weeks) prior to randomization. 7. Prior anti-TGF-beta 2 targeted therapy. 8. 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. 9. Participation in another clinical study with another investigational medicinal product within 30 days prior to randomization. 10. History of a second independent malignant disorder within 5 years, except for carcinoma in situ of the cervix and basal cell carcinoma. 11. Presence of poorly controlled seizures, defined as: a. Seizures, which require frequent hospitalizations or other medical interventions because of their serial nature and/or clinical symptoms. b. Seizure symptoms, which significantly interfere with normal life and restrict medical treatments that are necessary for patient care. 12. 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. 13. HIV, HBV or HCV infection. 14. Acute viral, bacterial, or fungal infection. 15. Acute medical problems that may be considered to become an unacceptable risk, or any conditions, which might be contraindications for starting study treatment. 16.Presence of high risk for pulmonary toxicities, defined as: a. Lung function: vital capacity = 70% b. Status following sequential or concomitant thoracic irradiation c. 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.18. Drug abuse or extensive use of alcohol. 17. History of allergies to reagents used in this study, history of coeliac disease (gluten intolerance). 18. Drug abuse or extensive use of alcohol. 19. Clinically relevant psychiatric disorders/legal incapacity or a limited legal capacity. 20. Concomitant treatment with yellow fever vaccine.

Design outcomes

Primary

MeasureTime frame
Main Objective: To test the efficacy and safety of AP 12009 (concentration 10 µM) in patients with recurrent or refractory anaplastic astrocytoma (AA) or secondary glioblastoma compared to standard chemotherapy treatment.;Primary end point(s): • Survival rate at 24 months;Secondary Objective: Secondary objectives with special relevance: • To compare median overall survival of AP 12009 (10 µM) with standard chemotherapy treatment. • To compare the 14-month progression rate of AP 12009 (10 µM) with standard chemotherapy treatment. In addition, to compare the effect of the different treatments on the following parameters: • Overall response rate (best response according to Macdonald criteria, PR and CR) • Tumor control rate (CR, PR and SD) • Duration of response • Progression rate at 10, 12, 16, 18, 21, and 24 months • Time to progression (months) • Survival rate at 12, 18, 21, 27, and 30 months, and at 3 and 4 years • Quality of Life (EORTC QLQ-C30, Independent Living Score [ILS]) • Safety and tolerability;Timepoint(s) of evaluation of this end point: The primary objective of the study is to compare the overall survival (OS) at 24 months of patients treated with AP 12009 at a concentration of 10 µM over a 7-day period every other week versus standard chemotherapy treatment. Consequently, the primary efficacy endpoint is the proportion of patients showing survival 24 months after randomization for the ITT population. (see Protocol, e.g. Synopsis)

Secondary

MeasureTime frame
Secondary end point(s): Secondary endpoints with special relevance: • Median overall survival (mOS) • 14-month progression rate Secondary efficacy endpoints: • Overall response rate (best response according to Macdonald criteria, PR and CR) • Tumor control rate (CR, PR, and SD) • Duration of response • Progression rate at 10, 12, 16, 18, 21, and 24 months • Time to progression (months) • Survival rate at 12, 18, 21, 27, and 30 months, and at 3 and 4 years • Quality of Life (EORTC QLQ-C30, Independent Living Score [ILS]);Timepoint(s) of evaluation of this end point: In the final analysis the primary endpoint as well as the secondary endpoints with special relevance will be tested hierarchically. A closed test procedure with the following sort order will be used for the final analysis: 1) 24-month survival rate, 2) Median overall survival (Kaplan-Meier), 3) 14-month progression rate. Special emphasis will be given to the interim analysis of progression rates at 14 months. Similar statistical methods to those planned for the primary endpoint will also be used to analyze progression rates at 10, 12, 16, 18, 21, and 24 months, survival rates at 12, 18, 21, 27, and 30 months, and at 3 and 4 years, and for the analysis of overall response rates, and tumor control rate. (see Protocol, e.g. Synopsis)

Countries

Argentina, Austria, Brazil, Canada, European Union, France, Germany, Hungary, India, Israel, Korea, Republic of, Mexico, Russian Federation, Spain, Taiwan, Ukraine, United Kingdom, United States

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026