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Recurrent Glioblastoma Multiforme(GBM)Phase 1/2NCT05053880

A Study to Evaluate Safety and Efficacy of ACT001 and Anti-PD-1 in Patients With Surgically Accessible Recurrent Glioblastoma Multiforme

A Phase 1/2 study testing ACT001 and ACT001 + Pembrolizumab in people with Recurrent Glioblastoma Multiforme(GBM), run by Accendatech USA Inc. at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The current design provides a window to analyze the impact of the ACT001+Pembrolizumab combination on the tumor microenvironment and disease outcomes. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Recurrent Glioblastoma Multiforme(GBM)
What is being tested?
ACT001 and ACT001 + Pembrolizumab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
1 siteUnited States
Study dates
22 Sep 2021to 31 Dec 2026
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient has provided written informed consent.
  • ≥ 18 years old at time of screening visit.
  • Histologically confirmed GBM at the time of diagnosis.
  • First or second relapse by the time of consenting.
  • Tumor progression (magnetic resonance imaging [MRI], defined by RANO) post prior treatments.
  • Feasibility for re-surgery.
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  • Karnofsky Performance Status ≥ 70% (requires occasional assistance, but able to care for most of their needs, equivalent to < ECOG 2).
  • Must be ≥ 4 weeks from administration of last dose of cancer therapy (including radiation therapy or chemotherapy). The patient must have recovered from all treatment-related toxicities to less than grade 2 per Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
  • Life expectancy of ≥ 3 months.
  • Adequate organ function (absolute neutrophil count ≥1.5 x 109 /L, lymphocytes ≥ 0.5 x 109 /L, platelets ≥ 75 x 109 /L, hemoglobin ≥ 10 g/dl; total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN); alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 x ULN (≤ 5.0 x ULN if liver metastasis); plasma creatinine ≤ 1.5 x ULN; QTc < 450 ms (male), < 470 ms (female).
  • Female patients are eligible if they are of:
  • Non-childbearing potential, defined as
  • Previous hysterectomy or bilateral oophorectomy
  • Previous bilateral tubal ligation
  • Post-menopausal (total cessation of menses for ≥ 1 year)
  • Childbearing potential with a negative serum pregnancy test at screening (within 7 days of the first investigational product administration) and uses a highly effective method contraception before study entry and throughout the study until 28 days after the last investigational product administration. Highly effective contraception (<1% failure rate per year), when used consistently and in accordance with both the product label and the instructions of the physician, are defined as follows:
  • Vasectomized partner who is sterile prior to the female patient's enrolment and is her sole sexual partner
  • An intrauterine device with a documented failure rate of less than 1% per year
  • Double barrier contraception defined as condom with a female diaphragm
  • Male patients, if sexually active, must agree to use a highly effective method of contraception (< 1% failure rate per year) with their female partners from screening until 28 days following the last study drug administration.
  • Absence of deteriorating neurological symptoms, new onset of seizures and the need for increasing doses of corticosteroids.
  • Absence of toxicity from prior therapy (excluding alopecia) that has not resolved to ≤ Grade 1 unless otherwise specified.
  • Absence of other clinically significant concomitant active medical disorder, based on the investigator's judgement

Who cannot join

  • The patient has uncontrolled infection.
  • The patient has serious diseases such as unstable angina pectoris, myocardial infarction in the past 6 months, heart failure (New York Heart Association class > II) or stroke within 6 months prior to the enrollment.
  • A gastrointestinal absorption disorder that would limit the bioavailability of oral drugs or if patient cannot take oral drugs.
  • Uncontrolled brain metastases or spinal cord compression. Patients who were treated with surgical resection or radiation therapy completing at least 4 weeks earlier are eligible if they are neurologically stable, not taking glucocorticoids and have a follow-up. MRI scan performed within the previous 4 weeks showing no tumor progression.
  • Pre-existing allergy to ACT001 or related compounds.
  • A patient has active autoimmune disease managed by systemic treatments in the past 2 years (i.e. the use of corticosteroids, immunosuppressive drugs or other disease modifying agents). Of note, a replacement therapy, e.g. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, is not considered a form of systemic treatment.
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  • A known history of, or any evidence of an active non-infectious pneumonitis.
  • Treatment with cancer therapies such as chemotherapy or radiation therapy either currently or within 4 weeks of ACT001 dosing. An exception is focal radiation for symptomatic bone metastases, which must not be within 2 weeks of ACT001 dosing.
  • History of treatment with immune CPB and Avastin (or other antiangiogenic or anti-vascular endothelial growth factor agents).
  • High dose of corticosteroids (> 4mg/day of dexamethasone or equivalent for at least 3 consecutive days) within two weeks of enrolment for GBM treatment.
  • A patient has received other systemic immunosuppressive treatments such as mTOR inhibitor everolimus four weeks prior to registration.
  • A patient has a diagnosis of ongoing immunodeficiency due to other diseases such as human immunodeficiency virus (HIV) infection.
  • Unresolved toxicity from prior antitumor therapy, defined as toxicities (excluding alopecia) that have not resolved to < Grade 2 as scored using the CTCAE current version. Exceptions may be allowed for stable toxicities after discussion with the investigator and sponsor.
  • Major surgery within 30 days of commencing first study therapy.
  • Pregnant or breast-feeding females.
  • A history of infection with HIV or hepatitis B or C viruses.
  • The patient has participated in other drug clinical studies < 4 weeks prior to obtaining the informed consent.
  • The patient is, in the opinion of the investigator, unsuitable for any other reason.

Trial locations and contacts

1 site in 1 country.

United States1 site

  • UT MD Anderson Cancer Center, Dept of Neuro-Oncology

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: A Phase 1b/2a Study of ACT001 and Anti-PD-1 in Patients With Surgically Accessible Recurrent Glioblastoma Multiforme

The current design provides a window to analyze the impact of the ACT001+Pembrolizumab combination on the tumor microenvironment and disease outcomes.

Read the detailed description

Phase 1b: The identified RP2D of combined ACT001 with Pembrolizumab will be determined by standard 3+3 dose escalation methodology among three ACT001 dosages (200mg, 400mg and 800mg, BID) with standard Pembrolizumab dosage. Patients will be dosed approximately 2 weeks prior to surgical resection with a single dose of Pembrolizumab and ACT001. Tumor resection will be performed and a biopsy will be obtained from the resected tumor tissue to evaluate the impact of the study drugs on the TME. After recovery from surgery, patients will resume ACT001 and Pembrolizumab until tumor progression (assessed by iRANO) or an AE requiring discontinuation of study drug. The Safety Monitoring Committee (SMC) will review the data available from all evaluable patients at each dose level prior to recommending escalation to the next dose level.

Phase 2a: Using the same dosing schedule and ACT001 dosage as determined in Phase 1b. Patients will be randomized to receive either Pembrolizumab only treatment (Arm A, 10 patients) or ACT001 plus Pembrolizumab treatment (Arm B, 20 patients).

Being tested
ACT001, ACT001 + Pembrolizumab
Keywords
GBM, Brain, Blastoma, Neoplasm
Medical subject headings
Glioblastoma, Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ACT001Drug

    Phase1b - Starting approximately 2 weeks prior to the scheduled surgery, patient will receive an assigned dose of ACT001 by mouth in combination with a single dose of 200 mg pembrolizumab via an intravenous (IV-through a tube in vain) infusion in the clinic. Then patient will self administer ACT001 capsules twice daily by mouth, at the dose to which patient is assigned, until the evening prior to scheduled surgery. Patient will then undergo surgery to remove all or part of tumor. This a standard 3+3 dose escalation.

  • ACT001 + PembrolizumabDrug

    Phase 2a - Starting approximately 2 weeks prior to the scheduled surgery, patient will receive a single dose of 200 mg pembrolizumab via an intravenous (IV) infusion in the clinic (an IV infusion means the drug will be delivered through a tube in your vein). Patient will then self-administer ACT001 capsules twice daily by mouth, at the dose to which patient is assigned, until the evening prior to scheduled surgery. Patient then will undergo surgery to remove all or part of tumor.

Study groups in NCT05053880
Study groupRoleWhat they receive
1b dose explorationExperimental1b dose exploration for 18 patients - The starting dose of ACT001 will be administered in combination with a single intravenous (IV) infusion of Pembrolizumab. After recovery from surgical resection, dosing will resume on a 3 weekly cycle and will consist of Pembrolizumab (standard dosing) and daily ACT001. Evaluation of a dose level of at least three (3) patients after completing one cycle of treatment post-surgery is required prior to commencing the next dose level.
Receives: Drug: ACT001
2a- Randomized/Two-treatment ArmExperimental30 Patients will be randomized to Arm A or Arm B at a ratio of 1 (Arm A) : 2 (Arm B). 10 patients will be randomized to the Pembrolizumab only arm (Arm A) and 20 patients will be randomized to the ACT001 plus Pembrolizumab arm (Arm B).
Receives: Drug: ACT001 + Pembrolizumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 1b-Incidence, type and severity of treatment-emergent AEs (TEAEs)

    Measured: Approximately 7 months. Each cycle is 21 days; from start of first dose with investigational product until completion of the last study related procedure (including follow-up for safety assessments- 30days after last dose)

  2. 1b-Dose limiting toxicities (DLTs)

    A DLT is defined as any of the following

    • Haematological toxicity
    • Grade 4 neutropenia
    • Grade ≥ 3 febrile neutropenia or neutropenic infection
    • Grade 4 thrombocytopenia
    • Grade 3 thrombocytopenia with clinically significant bleeding
    • Non-haematological toxicity
    • Grade ≥ 3 nausea, vomiting or diarrhoea despite optimal supportive therapy
    • Grade ≥ 3 hypertension despite appropriate intervention
    • Other grade ≥ 3 non-haematological toxicity, except grade 3 fatigue or transient events (such as allergic reactions or electrolyte disturbances) that are readily controlled with medical therapy and/or are of no clinical concern

    Measured: From first dose of study therapy until the end of the first post-surgery cycle (Cycle 1, Day 21).

  3. 1b-Mean changes in vital sign measurements-Heart Rate

    Mean change from baseline in vital sign measurements reported in beats/min (inclusive) at each study timepoint.

    Measured: Approximately 8months/ patient. Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  4. 1b-Mean changes in vital sign measurements- supine blood pressure

    Mean change from baseline in vital sign measurements reported in mmHg at each study timepoint

    Measured: Approximately 8months/ patient.Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  5. 1b-Mean changes in vital sign measurements- body temperature

    Mean change from baseline in vital sign measurements reported in degrees Celsius (0C) at each study timepoint.

    Measured: Approximately 8months/ patient. Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  6. 1b-Mean changes in vital sign measurements- respiratory rate

    Mean change from baseline in vital sign measurements reported in bpm at each study timepoint

    Measured: Approximately 8months/ patient. Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  7. 1b-Mean changes in electrocardiogram (ECG) parameters

    Mean change from baseline in electrocardiogram (ECG) parameters of heart rate, ventricular rate, PR interval, QRS duration, and QTcF.

    Measured: approximately 8months/patient. Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  8. 1b-Mean changes in Karnofsky Performance Scale score

    Mean change from baseline in Karnofsky Performance Scale score

    Measured: Approximately 8 months/patient. Each cycle is 21 days. Start at screening, Pre-surgical Treatment Period, Cycle 1 and each subsequent Cycle and 30 days after last dose

  9. 2a-Progression free survival (PFS) at 6 months

    Measured: Six months after initiation of study therapy

Secondary outcomes (5)

  1. 1b-Incidence of DLTs according to the MTD/RP2D evaluation process.

    Measured: From first dose of study therapy (per surgery) until the end of the first post-surgery cycle (Cycle 1, Day 21). Each cycle is 21 days.

  2. 1b- Pharmacokinetics (PK) of ACT001 in Plasma concentrations in tumor.

    Determine ACT001 trough levels in tumor samples.

    Measured: PK analysis will be collected on Day 1 of the pre surgical treatment period.

  3. 2a-Overall survival

    Overall survival (OS) is defined as time from start of ACT001 dosing at day 1 of cycle 1 until the date of death or date from any cause, assessed up to disease progression.

    Measured: Approximately 7months/patient- screening period is not included. Cycle 1 Day 1 until death, loss to follow-up, withdrawal of consent, date of disease progression or whichever occurs first

  4. 2a-Incidence, type and severity of TEAEs

    Summary of the treatment-emergent Adverse events experienced during treatment. Adverse events are assessed with Common Terminology Criteria for Adverse Events (CTCAE) 5.0. TEAEs are defined as any medical occurrence reported or observed after the start of dosing with investigational product until completion of the last study related procedure (including follow-up for safety assessments)

    Measured: From start of dosing until 30 days after the last dose of ACT001

  5. 2a-Concentration of ACT001 in resected tumor biopsy tissue.

    Measured: Tissue at Surgical Resection only.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Sep 2021
  2. Study start22 Sep 2021
  3. Primary completion25 Oct 2024
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Model description
Phase 1b dose exploration will enroll up to a maximum of 18 patients. Phase 2a, randomized/2-treatment arm part, will enroll up to 30 patients in two treatment arms. Arm A (treatment with Pembrolizumab) will enroll 10 patients. Arm B (treatment with the combination ACT001 plus Pembrolizumab) will enroll 20 patients.
Masking
None (open label)
Enrolment
48 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05053880
Sponsor's protocol ID
ACT001-US-001
Status last verified
Jun 2026
First submitted
12 Aug 2021
Last updated
10 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing ACT001 and ACT001 + Pembrolizumab in people with Recurrent Glioblastoma Multiforme(GBM), run by Accendatech USA Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 23 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 10 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

1b-Incidence, type and severity of treatment-emergent AEs (TEAEs) (time frame: Approximately 7 months. Each cycle is 21 days; from start of first dose with investigational product until completion of the last study related procedure (including follow-up for safety assessments- 30days after last dose)). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05053880.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jun 2026.

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