Temozolomide in Diffuse midline glioma, point mutation K27M in histone H3: NCT07223034 Clinical Landscape Report 2026

18 September 2026
9 min read

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This Clinical Landscape Report was built with PatSnap Life Sciences MCP workflows. Clinical Trials MCP supplies protocol and result records, Drug & Asset MCP adds asset context, and Company & Deal Intelligence MCP resolves sponsor background. Use the same structured MCP building blocks in your research workflow.

Data snapshot: 18 September 2026. This strategic research report is not medical, regulatory or investment advice. Trial status and dates can change.

Phase 1

Clinical phase

Recruiting

Recruitment status

20

Planned enrollment

2027-10-01

Primary-completion proxy

Executive view

NCT07223034 evaluates Temozolomide in Diffuse midline glioma, point mutation K27M in histone H3. The disclosed sponsor is Memorial Sloan Kettering Cancer Center, the design is Interventional, and the geographic footprint is United States. The first listed primary endpoint is Descriptively report the toxicity, assessed over up to 8 weeks post first infusion.

The key landscape question is whether this protocol can generate a clinically interpretable signal relative to nearby programs. Phase alone is not a measure of evidence quality. Endpoint relevance, comparator choice, masking, enrollment feasibility, patient selection, country coverage and follow-up must be considered together.

PatSnap MCP Servers make this assessment reproducible by keeping protocol facts, result evidence, asset attributes and sponsor identity in separate structured calls.

How the MCP evidence stack was assembled

Clinical Trials MCP clinical_trial_fetch retrieved the design, outcomes, phase, status, enrollment, sponsor, countries and timing for NCT07223034 and selected peers. clinical_trial_result_fetch supplied detailed result records from the wider Diffuse midline glioma, point mutation K27M in histone H3 landscape. Drug & Asset MCP drug_fetch was queried for Temozolomide, while Company & Deal Intelligence MCP organization_fetch was queried for Memorial Sloan Kettering Cancer Center.

This separation reduces a common diligence error: treating a registry label, a company description or a result excerpt as if each represented the complete evidence package. Explore the source workflow at the PatSnap MCP marketplace.

Trial landscape table

TrialAsset / interventionPhase / statusSponsorGeographyPrimary endpointReadout proxy
NCT07223034TemozolomidePhase 1 / RecruitingMemorial Sloan Kettering Cancer CenterUnited StatesDescriptively report the toxicity
up to 8 weeks post first infusion
2027-10-01
NCT07410676PembrolizumabPhase 1/2 / RecruitingEssen BioTech LLCChinaIncidence and severity of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs)
30 DAYS
2028-12-21
NCT07392957TovecimigPhase 1/2 / RecruitingWashington University School of MedicineUnited StatesPhase IB Arm 1: Toxicity as measured by number of participants with adverse events
Start of treatment through 60 days after treatment (estimated to be 1…
2029-06-30
NCT07389278TemozolomidePhase 1/2 / Not yet recruitingThe University of California, San FranciscoUnited StatesProportion of participants with Treatment-emergent Adverse Events (TrAE) (Phase 1)
Up to 104 weeks
2032-06-30
NCT07391215TemozolomidePhase 1/2 / RecruitingThe Institute of Cancer Research: Royal Cancer HospitalUnited KingdomPhase 1b - Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability) in patients with malignant brain tu…
12 months
2029-01-19

The table aligns endpoints, sponsors, phases, geographies and readout proxies. It is descriptive, not a head-to-head efficacy comparison. Differences in population, baseline risk, intervention schedule and follow-up can dominate apparent cross-trial differences.

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Protocol design and endpoint interpretation

NCT07223034 is a Phase 1, recruiting study with 20 planned participants. Allocation is N/A, masking is None (Open Label), and the intervention model is Single Group Assignment.

The primary endpoint is “Descriptively report the toxicity” over “up to 8 weeks post first infusion.” The retrieved endpoint description is: using the Common Terminology Criteria for Adverse Events (CTCAE) version 5..

Interpretation should test whether the endpoint captures a clinically meaningful change, whether its time horizon matches the proposed biology, and whether treatment discontinuation or missing data can bias the estimate. The planned enrollment of 20 should be assessed against expected effect size, event frequency, multiplicity, subgroup plans and attrition.

No named control drug was returned in the protocol field set. A placebo comparator can strengthen internal efficacy assessment, while an active comparator may better test clinical differentiation. Single-arm and open-label programs require greater weight on objective outcomes, independent assessment and external benchmarks.

Indexed readouts in the surrounding landscape

5 recent result records were selected as contextual evidence for Diffuse midline glioma, point mutation K27M in histone H3. These records do not establish direct evidence for NCT07223034 unless the registration number matches.

Phase 1 dose-escalation trial combining sulfasalazine and stereotactic radiosurgery in patients with recurrent glioblastoma

Phase 1; n=12; AE = Of 20 adverse events, two were grade 3 (transient lymphocytopenia), four grade 2, and fourteen grade 1 ; AE = Of 20 adverse events, two were grade 3 (transient lymphocytopenia), four grade 2, and fourteen grade 1 Source: https://pubmed-ncbi-nlm-nih-gov.libproxy1.nus.edu.sg/42229231/

Randomized Phase II Trial of Hypofractionated Dose-Escalated Photon IMRT or Proton Beam Therapy Versus Conventional Photon Irradiation With Concomitant and Adjuvant Temozolomide i…

Phase 2; n=624; Median Survival Time (Within Center Group)(Median): Cox Proportional Hazard = 0.95(70% CI, 0.81 - 1.10), P-Value = 0.25; Cox Proportional Hazard = 0.81(70% CI, 0.67 - 0.98), P-Value = 0.11; Median Survival Time (Within Center Group)(Median) = 22.8 months (95% Confidence Interval, 20.0 - 28.6) Source: https://clinicaltrials.gov/ct2/show/results/NCT02179086

Intracranial delivery of B7-H3-targeting CAR-T cells for recurrent glioblastoma: a phase 1 trial

Phase 1; n=15; TRAE(grade 3) = Three grade 3 TRAEs considered serious adverse events occurred (elevated intracranial pressure, epilepsy and depressed consciousness), two at DL3. Source: https://pubmed-ncbi-nlm-nih-gov.libproxy1.nus.edu.sg/42562965/

Result fields should be reconciled with the source record before quantitative comparison. Population definitions, analysis sets, dose cohorts, estimands, confidence intervals, rescue therapy and follow-up can materially change the meaning of a numerical endpoint. Clinical Trials MCP supports repeatable refreshes as result records change.

Asset and sponsor context

Temozolomide is indexed as Small molecule drug with DNA biology and a global stage of Approved. The asset profile lists Merck Sharp & Dohme Corp. as an originator or developer.

Memorial Sloan Kettering Cancer Center is indexed in United States with the website http://www.mskcc.org. Memorial Sloan - Kettering Cancer Center develops health-related apps and educational programs for mobile platforms. The record lists 149 development-stage drug assets.

For execution diligence, monitor sponsor ownership, collaborator additions, site expansion, protocol amendments and enrollment revisions. A change in ownership or geography can alter operational confidence as well as the commercial meaning of a future readout.

Development white space

  1. Endpoint white space. Determine whether a more patient-relevant outcome, longer durability window or blinded central assessment would resolve uncertainty left by the current endpoint.
  2. Population white space. Test biomarker-defined, treatment-line or risk-stratified subgroups where effect size and unmet need could be clearer.
  3. Comparator white space. Identify whether the study can support differentiation against the current standard of care rather than only activity against baseline or placebo.
  4. Geographic white space. Assess whether the disclosed footprint supports recruitment, regulatory transferability and commercial generalizability.
  5. Sequencing white space. Clarify whether Temozolomide is intended for monotherapy, combination, maintenance, rescue or an earlier treatment line.

White space should be framed as an unanswered development question, not merely an unoccupied mechanism label. A credible program closes a measurable clinical uncertainty with a design that can be executed and interpreted.

Strategic implications and next readouts

For sponsors, the endpoint hierarchy, safety window, enrollment pace and protocol amendment history should all support the same target product profile. Advancement criteria should be set before the readout and tied to clinical effect, uncertainty, tolerability and operational feasibility.

For business-development teams, differentiation may come from a sharper population, stronger comparator, more durable benefit, simpler delivery or clearer sequencing role. For investors, the central risk is evidence quality relative to time and capital, not the phase label in isolation.

Track recruitment status, enrollment changes, primary-completion timing, endpoint revisions, new result records, sponsor ownership and collaborator changes. Re-run the PatSnap MCP workflow when a surrogate becomes a clinical outcome, a single-country study expands, the comparator changes or a new result materially shifts the competitive benchmark.

Source trail and bottom line

Anchor trial: NCT07223034
Protocol source: https://clinicaltrials.gov/study/NCT07223034
MCP sources: Clinical Trials MCP (clinical_trial_fetch and clinical_trial_result_fetch); Drug & Asset MCP (drug_fetch); Company & Deal Intelligence MCP (organization_fetch).
Data snapshot: 18 September 2026.

Temozolomide in Diffuse midline glioma, point mutation K27M in histone H3 is best understood through the interaction of protocol design, surrounding readouts, asset context and sponsor execution. The current record makes Descriptively report the toxicity and 2027-10-01 the leading decision points.

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