Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 21 and up

ACT001 for recurrent glioblastoma with STAT3-high signature

Official title: Proof-of-Concept Study of ACT001 in Adult Patients With Recurrent Glioblastoma Harbouring STAT3-High Signature

Run by National Neuroscience Institute · NCT06894225 · Data updated 2026-11-12

This study tests ACT001 in adults whose glioblastoma has recurred and shows a high STAT3 signature after standard treatment.

More Recurrent Glioblastoma trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages21 Years and up
SexAll
Enrollment12 (estimated)
SponsorNational Neuroscience Institute
Academic / other
Drugs / interventionsbevacizumab, radiation
Locations1 site (Singapore)
StatusRecruiting
StartedMarch 22, 2025
Main results expectedMay 2027
Study endsMay 2027
Registry record updatedSeptember 4, 2026
Trial IDNCT06894225 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 21 years or older with histologically confirmed GBM, recurrent disease, a STAT3-high signature in tumor tissue, prior radiation, and sufficient functional status (KPS 70+).

Probably not a fit

Patients without a STAT3-high signature, without recurrent disease, or with poor performance status may not benefit from this therapy.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a Phase 2 interventional study evaluating ACT001 in adults with recurrent glioblastoma that harbor a STAT3-high gene signature. Eligible participants must have histologically confirmed GBM, prior radiation, and demonstrated recurrence within 21 days by biopsy, resection, or MRI. Tumor tissue must be available and tested for the STAT3-high signature. Participants may have had multiple prior recurrences and lines of therapy, with defined washout periods from prior treatments and investigational agents. The study is led by the National Neuroscience Institute in Singapore, with ACT001 as the investigational intervention.

Why it matters

Potential benefit: If successful, participants may experience slowed tumor growth or extended survival and symptom improvement from ACT001 treatment.

How similar studies have gone: Previous studies of targeted therapies in STAT3-driven glioblastoma have shown signals of activity in some patients, but this specific approach is investigational and early-phase.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically confirmed diagnosis of GBM according to 2021 WHO classification
* Availability of tumor tissue representative of GBM from definitive surgery or biopsy and tested to harbour STAT3-High Signature
* Previous treatment with at least radiation therapy
* Documented recurrence of malignant glioma by diagnostic biopsy, resection or MRI performed within 21 days of study enrolment per RANO criteria.

There is no limit on number of previous recurrences or lines of treatment

* At least 12 weeks after the end of prior radiation therapy is required unless there is either: i) histopathologic confirmation of recurrent tumor, or ii) n new enhancement on MRI outside of the radiation treatment field
* An interval of at least 4 weeks after the last administration of any investigational agent or any other treatment prior to first dose of STAT3 inhibitor
* Age 21 years or older on the day of signing informed consent
* Karnofsky performance status (KPS) of 70 or higher
* Patient has adequate bone marrow, renal, and hepatic function ≤ 21 days prior to study enrolment (Step 2) as follows:

  * Absolute neutrophil count (ANC) ≥1,500/mm3
  * Platelets ≥ 100,000/mm3
  * Hemoglobin (Hgb) ≥ 9.0 g/dL (Note: The use of transfusion or other intervention to achieve Hgb ≥ 9.0 g/dL is acceptable.)
  * Renal function: calculated creatinine clearance ≥ 30 mL/min by the Cockcroft-Gault formula
  * Hepatic function: Total bilirubin, Aspartate Aminotransferase (AST), and Alanine Aminotransferase (ALT) ≤ 1.5 times upper limit of normal (ULN). Patients with Gilbert's syndrome documented in medical history may be enrolled if bilirubin is \< 3 times ULN.

Exclusion Criteria:

* Presence of extracranial metastatic or leptomeningeal disease
* Previous or current treatment with a JAK or STAT3 inhibitor
* Previous or current treatment with bevacizumab/VEGF inhibitor
* Patient is a lactating or pregnant female.
* Symptomatic intra-tumoural haemorrhage
* Severe, active co-morbidity, defined as follows:

  * Patients with clinically defined Acquired Immune-Deficiency Syndrome (AIDS)-defining illness.
  * Active connective tissue disorders, such as lupus or scleroderma, that in the opinion of the Investigator may put the patient at high risk of toxicity
  * Any other major medical illnesses or psychiatric impairments that in the Investigator's opinion will prevent administration or completion of protocol therapy

Where it's running

  • National Neuroscience Institute
    Singapore, Singapore
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.