ClinicalTrials.gg
RecruitingNCT06414460Updated Sep 1, 2026

Study of ISM3412 in Participants With Locally Advanced/Metastatic Solid Tumors

A Phase 1/2 interventional study of ISM3412 in Locally Advanced/Metastatic Solid Tumors, sponsored by InSilico Medicine Hong Kong Limited. Recruiting at 10 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-01.

Sponsored by InSilico Medicine Hong Kong Limited · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Apr 2025; still recruiting 1 year 6 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
146
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The study has consists of two parts, a dose escalation part (Part 1) and a dose selection optimization part (Part 2). The primary objectives of this study are to evaluate the safety and tolerability of ISM3412 in participants with locally advanced/metastatic solid tumors, and to determine the RP2D of ISM3412.

02

Conditions studied

  • Locally Advanced/Metastatic Solid Tumors

Keywords

  • Methionine adenosyltransferase 2A (MAT2A)
  • homozygous MTAP deletion
  • MAT2A inhibitor
  • ISM3412
03

In context

Lead sponsor

InSilico Medicine Hong Kong Limited is the lead sponsor of 11 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female participants with age ≥18 years at the time of signing the .
  2. confirmed unresectable locally advanced or solid tumors with confirmed homozygous MTAP deletion, who have disease progression after standard therapy, intolerable to standard therapy, or for whom no standard therapy exists.
  3. Have measurable or evaluable lesions in Part 1 and at least one measurable target lesion in Part 2 as defined by (RECIST) criteria.
  4. PS (Eastern Cooperative Oncology Group Performance Status) ≤1.
  5. of ≥12 weeks as judged by the investigator.
  6. Adequate organ function as determined by medical assessment.
  7. Capable of providing signed ICF and complying with the requirements and restrictions listed in the ICF and in this study protocol.

Exclusion criteria

Exclusion Criteria:

  1. Prior treated with other MAT2A inhibitors and/or PRMT inhibitors.
  2. Participation in other therapeutic clinical studies within 28 days or 5 half-lives (whichever is shorter) prior to first dose of study treatment.
  3. Anti-tumor therapy (chemotherapy, immunotherapy, hormonal therapy, targeted therapy, biologic therapy, or other anti-tumor therapy, except for hormones for hypothyroidism or estrogen replacement therapy, anti-estrogen analogues, agonists required to suppress serum testosterone levels) within 28 days or 5 half-lives, whichever is shorter prior to first dose of study treatment.
  4. Toxicities of prior therapy have not resolved to Grade ≤1 or to baseline (as evaluated by version 5.0)
  5. History of another primary tumor that has been diagnosed or required therapy within the past 3 years.
  6. Previous history of, or presence of Gilbert's syndrome.
  7. Previous history of myelodysplastic syndrome.
  8. Prior solid organ or hematopoietic stem cell transplant.
  9. Known active central nervous system (CNS) primary tumor or untreated .
  10. Have serious cardiovascular or cerebrovascular disease as per protocol.
  11. Presence of uncontrolled systemic infection as per protocol.
  12. Unwillingness or unable to comply with the requirements of oral drug administration, or presence of a gastro-intestinal condition.

Other protocol inclusion and exclusion criteria may apply.

Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
146 participants (estimated)

Study arms

  • Experimental
    Part 1 Dose Escalation

    Patients will receive ISM3412 once daily in sequential cohorts of increasing doses.

    Drug: ISM3412

  • Experimental
    Part 2 Dose Selection Optimization

    Participants will be randomized to receive one of the two selected dose levels of ISM3412 once daily determined by Study Review Committee.

    Drug: ISM3412

Interventions

  • DrugISM3412

    ISM3412 will be administered orally once daily.

06

What researchers measure

Primary outcomes

  1. Incidence of dose-limiting toxicity (DLT) events

    To evaluate the safety and tolerability of ISM3412.

    Time frame: 31 days

  2. Incidence and severity of adverse events (AEs)

    To evaluate the safety and tolerability of ISM3412.

    Time frame: Approximately 30 months

  3. Recommended phase 2 dose (RP2D)

    To determine the RP2D of ISM3412.

    Time frame: Approximately 30 months

Secondary outcomes

  1. Maximum observed concentration (Cmax)

    To assess PK of ISM3412 in plasma following a single and multiple doses of ISM3412

    Time frame: Approximately 30 months

  2. Time of maximum observed concentration (Tmax)

    To assess PK of ISM3412 in plasma following a single and multiple doses of ISM3412

    Time frame: Approximately 30 months

  3. Area under the concentration-time curve (AUC)

    To assess PK of ISM3412 in plasma following a single and multiple doses of ISM3412

    Time frame: Approximately 30 months

  4. Terminal half-life (t1/2)

    To assess PK of ISM3412 in plasma following a single and multiple doses of ISM3412

    Time frame: Approximately 30 months

  5. Objective response rate (ORR)

    To evaluate the preliminary efficacy of ISM3412 in participants with locally advanced/metastatic solid tumors.

    Time frame: Approximately 30 months

  6. Best objective response (BOR)

    To evaluate the preliminary efficacy of ISM3412 in participants with locally advanced/metastatic solid tumors.

    Time frame: Approximately 30 months

  7. Duration of response (DoR)

    To evaluate the preliminary efficacy of ISM3412 in participants with locally advanced/metastatic solid tumors.

    Time frame: Approximately 30 months

07

Study locations

10 of 10 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06414460
Lead sponsor
InSilico Medicine Hong Kong Limited
Responsible party
Sponsor
First posted
May 16, 2024
Start date
Apr 25, 2025
Primary completion
Mar 31, 2028 (estimated)
Completion
Mar 31, 2029 (estimated)
Last update
Sep 1, 2026

Study contacts

Johnny Ju
Contact
Insilico-Clinicaltrial@insilico.ai
+86 021-50831718

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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