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Official Title
A Phase II Trial of ACT001 in Children and Adolescents With Diffuse Intrinsic Pontine Gliomas and H3K27-altered High Grade Gliomas
Phase
Phase 2
Sponsor
Nationwide Children's Hospital
Enrollment
60
Timeline
Jul 2025 → Jul 2035
About This Study
This is a Phase II open-label study to investigate the safety and efficacy of ACT001 in patients with DIPG and H3K27-altered HGG.
Eligibility Criteria
Inclusion Criteria
- 1Patients must be ≥ 12 months and ≤ 39 years of age at the time of study enrollment.
- 2Diagnosis:
- 3Cohort A: Newly Diagnosed DIPG
- 4Patients with newly-diagnosed DIPG with typical MRI findings (tumors with a pontine epicenter and diffuse involvement of at least 2/3 of the pons) with or without biopsy and have completed radiation therapy (RT) within 28 to 35 calendar day prior to start of therapy.
- 5Patients must have started RT \<42 calendar days of radiographic diagnosis (for non-biopsied DIPG patients only) or definitive surgery, whichever is later. It is strongly recommended patients begin RT within 31 days of diagnosis/definitive surgery.
- 6If a biopsy was performed, the date of surgical biopsy will be considered the date of definitive diagnostic surgery; if a patient underwent two upfront surgeries \[e.g., biopsy then debulking\], this is the date of the second surgery)
- 7Patients must have received RT, but no other anti-cancer therapy other than surgery, and/or steroids prior to enrollment.
- 8Cohort B: progressive/refractory/recurrent DIPG or H3K27-altered HGG
- 9Patients with DIPG (no biopsy required) or pathologically-confirmed (at diagnosis or recurrence) extra-pontine H3K27-altered HGG who have progressive, refractory or recurrent disease following frontline treatment that included at least focal RT. Patients with refractory disease must have completed RT \>6 months prior to study enrollment.
- 10Patients with progressive disease only at the primary site(s) must have completed RT more than 3 months prior to enrollment.
- 11Patients with progressive disease only at the primary site(s) who completed radiation therapy 3 to 6 months prior to enrollment must have had at least one follow up MRI to confirm progression (rather than pseudo- progression)
- 12Patients with progressive disease due to the development a new metastatic site are eligible as long as eligibility criteria 3 (disease status) and 5 (prior RT) are met.
- 13Patients with metastatic disease are eligible.
- 14Disease Status
- 15Cohort A: patients may have any disease status but must have completed initial radiation therapy (RT) before enrollment.
- 16Cohort B: Patients must have measurable disease assessable by MRI imaging. Patients may have metastatic disease. Lesions irradiated within the last 6 months are not considered measurable unless they show definitive progression following RT.
- 17Performance Level: Karnofsky Performance Scale score ≥ 50% for patients \> 16 years of age and Lansky Performance Scale score \> 50% for patients ≤ 16 years of age (applies to all patients) Note: Patients who are unable to walk because of paralysis, but who are capable of using a wheelchair, will be considered ambulatory for the purpose of assessing the performance score.
- 18Prior anti-cancer therapy:
- 19For Cohort A ONLY:
- 20Patients must not have received any prior therapy other than surgery, radiation (focal to disease) and/or steroids (dexamethasone with goal to wean dexamethasone throughout protocol therapy).
- 21Patients must enroll and start treatment on study between 28 and 35 calendar days post-completion of RT.
- 22Patients must have started RT \<42 calendar days of initial diagnosis (defined as the date of diagnostic biopsy or resection; if a patient underwent two upfront surgeries \[e.g., biopsy then resection or debulking\], this is the date of the second surgery).
- 23Radiotherapy must have been administered at standard dose of 54 Gy for DIPG patients. Any variances in the radiotherapy dose within 10% of the standard doses outlined above will be discussed with the Study Chair (or their delegate) to confirm eligibility prior to study enrollment.
- 24For Cohort B ONLY: Patients must have fully recovered from adverse events due to prior treatment with investigational or conventional agents must have recovered to a severity of Grade 0 or Grade 1 (per Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 or higher), with the exception of alopecia.
- 25Cohort A - Patients that have received any anti-cancer treatment other than RT are not eligible.
- 26Investigational Drugs: Patients who are currently receiving another investigational drug are not eligible.
- 27Anticonvulsants should be used as clinically indicated. The use of enzyme inducing anticonvulsants is not permitted
- 28LHRH agonist / antagonists are not permitted
- 29High Dose Biotin (B7) supplements are not permitted
- 30Concomitant medications used with caution: selective serotonin reuptake inhibitor (SSRI) such as Lexapro, Fluoxetine (Prozac), fluvoxamine (Luvox), paroxetine (Paxil), sertraline (Zoloft), citalopram (Celexa), and escitalopram should be used with caution.
- 31Infection: Patients who currently have an uncontrolled infection (in the opinion of the PI) are not eligible.
- 32Patients who have received a prior solid organ transplantation are not eligible.
- 33Pregnant or breast-feeding women will not be entered on this study due to unknown risks of fetal and teratogenic adverse events as seen in animal/human studies. Pregnancy tests must be obtained in girls who are postmenarchal. Males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method.
- 34Patients of childbearing or child fathering potential must agree to use adequate contraceptive methods (hormonal or barrier method of birth control; abstinence) while being treated on this study and for 3 months after completing therapy. Note: The definition of effective contraception will be based on the judgement of the principal investigator or a designated associate.
- 35Patients who are in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible.
- 36Patients who have previously received either ACT001 or parthenolide are not eligible.
Exclusion Criteria
- 1The wash out period between the prior anti-cancer chemotherapy, and first dose of ACT001 (cycle 1 day 1) must be:
- 2Myelosuppressive chemotherapy: At least 21 days after the last dose of myelosuppressive chemotherapy (42 days if prior nitrosourea).
- 3Hematopoietic growth factors: At least 14 days after the last dose of a long-acting growth factor (e.g. Neulasta) or 7 days for short-acting growth factor.
- 4Biologic (anti-neoplastic agent): At least 7 days after the last dose of a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. The duration of this interval must be discussed with the study chair.
- 5Immunotherapy: At least 42 days after the completion of any type of immunotherapy, e.g. tumor vaccines.
- 6Monoclonal antibodies: \> 21 days must have elapsed from the infusion of last dose of antibody and toxicity related to antibody therapy must be recovered to Grade ≤ 1
- 7Radiation therapy:
- 8For Cohort B, patients with refractory disease must have received their last fraction of frontline craniospinal or focal RT \> 6 months prior to study enrollment. Patients that have received re-irradiation for progression must have received their last fraction of focal radiation \>6 weeks or craniospinal radiation \>6 weeks prior to study enrollment.
- 9Stem Cell Transplant: Patients must be ≥ 3 months since autologous stem cell transplant. Patients who received allogenic stem cell transplant or solid organ transplant are not eligible for study
- 10Organ Function Requirements (applies to all patients)
- 11Adequate bone marrow function defined as:
- 12Peripheral absolute neutrophil count (ANC) \> 1000/mm³
- 13Platelet count \> 100,000/mm³ (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment)
- 14Adequate renal function defined as:
- 15Creatinine clearance or radioisotope GFR ≥ 70 mL/min/1.73 m² or
- 16A serum creatinine based on age/gender as follows (Schwartz et al. J. Peds, 106:522, 1985): Age Maximum Serum Creatinine (mg/dL) Male Female 1 to \< 2 years 0.6 0.6 2 to \< 6 years 0.8 0.8 6 to \< 10 years 1.0 1.0 10 to \< 13 years 1.2 1.2 13 to \< 16 years 1.5 1.4 ≥ 16 years 1.7 1.4
- 17Adequate liver function defined as:
- 18total bilirubin within normal institutional limits
- 19AST (serum glutamic-oxaloacetic transaminase \[SGOT\]) / ALT (serum glutamic-oxaloacetic transaminase \[SGPT\]) ≤ 2.5 × institutional upper limit of normal
- 20Serum albumin ≥ 2 g/dL
- 21Adequate cardiac function defined as:
- 22Ejection fraction of ≥ 50% by echocardiogram
- 23QTc ≤ 480 msec (by Bazett formula)
- 24For Cohort B: Adequate neurologic function defined as:
- 25Patients with seizure disorders may be enrolled if seizures are well- controlled. Well controlled is defined by no increase in seizure frequency in the 7 days prior to enrollment.
- 26Patients with neurological deficits should have deficits that are stable for at least the 7 days prior to enrollment.
- 27Informed Consent: All patients and/or their parents or legally authorized representatives must sign a written informed consent. Assent, when appropriate, will be obtained according to institutional guidelines.
- 28Absence of other clinically significant concomitant active medical disorder, based on the investigator's judgement.
- 29Cohort A only: Patients with metastatic disease.
- 30Concomitant medications:
- 31Corticosteroids:
- 32Cohort A - Patients receiving corticosteroids are eligible regardless of dosing
- 33Cohort B - Patients receiving corticosteroids who have been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are eligible
Locations
19 sites participating in this study
Emory University/Children's Healthcare of Atlanta
Atlanta, Georgia 30322
Tobey MacDonald, MD
Children's National Medical Center
Washington D.C., District of Columbia 20010
Eugene Hwang, MD
Nicklaus Children's Hospital
Miami, Florida 33155
Ziad Khatib, MD
Data sourced from ClinicalTrials.govView on ClinicalTrials.gov →