Research Radartracking 1,138 published studies · 277 human · 6 safety signals · 42 clinical trials · 44 cancer pages · updated Jul 2026Open the Research Map →

Temozolomide

← All agents

Human-reviewed · How we review →

AI extractedhuman reviewedsources checkedretractions suppressed

Evidence at a glanceHuman trial / meta-analysisMixed results⚠ Studies disagree
6 published studies tagged to this agent1 human studies approved & graded (trial, observational, or meta-analysis)
Why this grade?

Human trial / meta-analysisIncludes human trial or meta-analysis evidence.

Computed deterministically from the studies’ types and reported outcomes — not written by AI, and not a claim that anything works.

Auto-discovered · not yet curatedtemozolomide
Educational only, not medical advice. OncoForge makes no claim that Temozolomide treats, prevents, or cures any condition, beyond what the linked studies show. Evidence levels vary; effects may not translate to people, and some compounds can cause harm. Always coordinate with your oncology team.

Simple Summary

Auto-discovered from 1 recent study; not yet curated.

Research

Where the evidence is

What has been studied, and how strong it is, by topic. A dashed cell means no studies were found for that combination — a gap, not evidence of no effect. Open a row to see its studies.

CancerHuman evidenceMechanismSafetyTrial
Glioblastoma141
Glioblastoma (Gbm)1

Reported figures

Study mix

6 published studies by what they were done in. Lab and animal findings often do not carry over to people.

1 Human1 Lab4 Review/other
Reported directionReported positive2Mixed results1Inconclusive3

What supports this page

The kinds of sources behind this page, strongest at the top. Faint rungs show what is not here yet.

Guideline
0
Meta-analysis
0
Systematic review
0
Randomized trial
0
Clinical trial
1
Observational
0
Case report
0
Review
4
Preclinical
1
Other
0
6 studies1 human1 lab4 review/other

Tracking 6 published studies of Temozolomide: 1 in humans, 1 in the lab, 4 reviews/other.

Reported direction across studies: 2 positive, 1 mixed, 3 inconclusive.

Findings conflict — both supportive and negative/mixed results exist (see below). Human evidence is limited.

These counts summarize what the studies reported; they are not a measure of whether Temozolomide works.

Cancers named in these studies

glioblastoma (5)glioblastoma (GBM) (1)

Conflicting evidence

All studies

Human trialTrialReported positiveModerate evidenceTier 4 · clinicaln = 31

Efficacy and safety of adjuvant TTFields plus pembrolizumab and temozolomide in newly diagnosed glioblastoma: A phase 2 study

Med (New York, N.Y.) · Sep 2025 · Phase 2, single-arm with case-matched control comparison

PembrolizumabTemozolomideglioblastoma

This phase 2 clinical trial enrolled 31 patients with newly diagnosed glioblastoma after chemoradiation to test adding pembrolizumab to TTFields plus temozolomide. Among 26 patients treated per protocol, median progression-free survival was 12.0 vs. 5.8 months (HR 0.377; p = 0.0026) and median overall survival was 24.8 vs. 14.6 months (HR 0.522; p = 0.0477) compared to case-matched controls. Patients who had biopsy only showed larger PFS and OS benefits than those with maximal resection. Immune analyses suggested TTFields induced a T1IFN-driven clonal T cell expansion while pembrolizumab supported adaptive replacement and sustained T cell activation; severe treatment-related adverse events were reported as 7.5%.

Reported effects: median PFS 12 mo · PFS hazard ratio 0.377 [0.217–0.653], p=0.0026 · +7 more

Studied with: pembrolizumab, temozolomide.

Key findings
  • Among 26 patients treated per protocol, median PFS was 12.0 vs. 5.8 months in controls (HR 0.377, 95% CI 0.217-0.653; p = 0.0026).
  • Among 26 patients treated per protocol, median OS was 24.8 vs. 14.6 months in controls (HR 0.522, 95% CI 0.301-0.905; p = 0.0477).
  • Patients undergoing biopsy had longer PFS (27.2 vs. 9.6 months; HR 0.37, 95% CI 0.16-0.85; p = 0.014) and OS (31.6 vs. 18.8 months; HR 0.4, 95% CI 0.17-0.92; p = 0.023) compared to maximal resection.
  • Severe adverse events constituted 7.5% of treatment-related toxicities.
  • Immune correlates: TTFields promoted clonal T cell expansion via a T1IFN-driven trajectory, while pembrolizumab supported adaptive replacement of these clones, sustaining T cell activation and memory formation, especially in biopsy-only patients.
Limitations: Small sample size (31 enrolled; 26 treated per protocol).; Phase 2, non-randomized, single-arm design with case-matched controls rather than a randomized control group.; Potential selection or matching biases inherent to case-matched control comparisons.; Follow-up duration not specified in the abstract.; Funded by Novocure (industry support) which may present a conflict of interest..

AI summary of the abstract, human-reviewed · Jul 2026. Describes what this study reported, not medical advice. View on PubMed

ReviewMixed resultsLimited evidenceTier 4 · clinical

Emerging Therapies for Glioblastoma

Cancers · Apr 2024 · review

Temozolomideglioblastoma

This narrative review summarizes emerging therapeutic approaches for glioblastoma, noting the disease's high heterogeneity and poor prognosis (approximately 12–18 months survival). It discusses limitations of conventional therapies (temozolomide, radiation, surgery) and reviews targeted pathways (PI3K, NF-kB, JAK-STAT, CK2, WNT, NOTCH, Hedgehog, TGF-beta) as well as oncolytic viruses and nanomaterials and their potential to improve blood–brain barrier penetration.

Key findings
  • Glioblastoma is highly heterogeneous and remains the most malignant primary brain tumor with an approximate survival of 12–18 months.
  • Conventional therapies (temozolomide, radiation, surgery) have limitations and there is currently no cure for glioblastoma.
  • The review discusses targeted therapeutic approaches to PI3K, NF-kB, JAK-STAT, CK2, WNT, NOTCH, Hedgehog, and TGF-beta pathways.
  • Oncolytic viruses and nanomaterials are described as highly novel applications, with progress in breaching the blood-brain barrier noted as a promising avenue for future therapies.
  • Despite many clinical trials, prognosis remains poor and further development of targeted and combination treatments is needed.
Limitations: Narrative review without original primary data reported in this paper (no new patient- or trial-level results).; Abstract provides only a high-level overview; specific clinical trial results, doses, sample sizes, and statistical outcomes are not provided.; Heterogeneous evidence base implied (preclinical and clinical) but not specified or graded in abstract.; No quantitative synthesis (e.g., meta-analysis) or methods described in abstract..

AI summary of the abstract, human-reviewed · Jul 2026. Describes what this study reported, not medical advice. View on PubMed · Full text

ReviewMechanismInconclusiveLimited evidenceTier 4 · clinical

Cilia at the Crossroads of Tumor Treating Fields and Chemotherapy

Developmental neuroscience · Jan 2023 · narrative review

Temozolomideglioblastoma (GBM)

This narrative review examines the role of primary cilia on normal brain cells and glioblastoma (GBM) cells in the context of therapy with temozolomide (TMZ) and tumor treating fields (TTFields). The authors summarize evidence that GBM cilia can be exploited to promote tumor growth and treatment resistance, and they review how TMZ and TTFields affect ciliogenesis. They note recent findings of differential regulation of GBM ciliogenesis by TTFields versus TMZ and recommend intracranial TTFields models to test prognostic capacity.

Studied with: tumor treating fields (TTFields), temozolomide (TMZ).

Key findings
  • Concomitant TTFields and TMZ target tumor cells while sparing normal brain cell types (as discussed in reviewed studies).
  • Evidence supports that GBM primary cilia can be exploited by tumor cells to promote growth and treatment resistance.
  • Primary cilia on both normal brain cells and GBM cells are affected by GBM treatments given as monotherapy or in combination.
  • Latest findings indicate a differential regulation of GBM ciliogenesis by TTFields and TMZ.
  • Authors highlight the need for intracranial TTFields models to determine whether GBM cilia have prognostic capacity.
Limitations: Review article with no original experimental data presented in this paper.; Conclusions are based on heterogeneous prior studies (cell, animal, and clinical) summarized by the authors.; No intracranial TTFields experimental models reported; clinical relevance of cilia as prognostic markers remains untested.; Abstract provides no quantitative effect sizes or patient outcome data..

Addresses how primary cilia modulate glioblastoma cell responses to two anticancer modalities (TMZ chemotherapy and TTFields), relevant to tumor sensitivity and resistance.

AI summary of the abstract, human-reviewed · Jul 2026. Describes what this study reported, not medical advice. View on PubMed · Full text

Lab · in vitroMechanismReported positivePreclinical onlyTier 1 · lab

TRIM7 modulates NCOA4-mediated ferritinophagy and ferroptosis in glioblastoma cells

Redox biology · Oct 2022 · cell culture mechanistic study

Temozolomideglioblastoma

This laboratory study looked at TRIM7 in human glioblastoma cells. The authors found that lowering TRIM7 reduced cell growth and increased cell death, while increasing TRIM7 had the opposite effect. They also reported that TRIM7 reduced NCOA4-related ferritinophagy and ferroptosis, and that removing TRIM7 made the cells more sensitive to temozolomide.

Studied with: temozolomide.

Key findings
  • TRIM7 expression was elevated in human glioblastoma cells and tissues.
  • TRIM7 silence suppressed growth and induced death, while TRIM7 overexpression facilitated growth and inhibited death of human glioblastoma cells.
  • TRIM7-silenced cells exhibited increased iron accumulation, lipid peroxidation and ferroptosis, which were significantly reduced by TRIM7 overexpression.
  • TRIM7 directly bound to and ubiquitinated NCOA4 using K48-linked chains, thereby reducing NCOA4-mediated ferritinophagy and ferroptosis.
  • TRIM7 deletion sensitized human glioblastoma cells to temozolomide therapy.
Limitations: In vitro cell-line study only; no animal or human outcomes.; Mechanistic findings are based on engineered TRIM7 knockdown/overexpression models.; No quantitative effect sizes, sample size, or dose information were reported in the abstract.; Clinical relevance is uncertain because the study did not test patient outcomes..

The study examines a molecular mechanism in glioblastoma cells and how TRIM7 affects cell growth, ferroptosis, and temozolomide sensitivity.

AI summary of the abstract, human-reviewed · Jun 2026. Describes what this study reported, not medical advice. View on PubMed · Full text

ReviewInconclusiveLimited evidenceTier 4 · clinical

Glioblastoma Treatment: State-of-the-Art and Future Perspectives

International journal of molecular sciences · Jun 2022 · narrative review

TemozolomideBevacizumabglioblastoma

This is a narrative review summarizing current glioblastoma management and future research directions. It states standard care remains maximal safe resection plus radiotherapy and temozolomide, with bevacizumab used in the recurrent setting, and reviews investigational approaches including immunotherapy, new synthetic molecules, natural compounds at preclinical stages, and glioblastoma stem cell inhibition. The authors conclude that prognosis remains poor and that combined strategies and improved delivery methods may enhance standard therapy in the future.

Studied with: maximal safe surgical resection, radiotherapy, temozolomide, bevacizumab, immunotherapy, synthetic molecules, natural compounds, glioblastoma stem cell inhibition.

Key findings
  • Current standard management of glioblastoma is maximal safe surgical resection, radiotherapy, and chemotherapy with temozolomide.
  • Bevacizumab has been added to the treatment options for recurrent glioblastoma.
  • The review summarizes ongoing research and future perspectives on immunotherapy, new synthetic molecules, and natural compounds that are potential future therapies at preclinical stages.
  • Despite research advances, glioblastoma management has had minimal changes and prognosis remains poor.
  • Combined therapeutic strategies and delivery methods, including immunotherapy, synthetic molecules, natural compounds, and glioblastoma stem cell inhibition, may potentiate standard of care therapy.
Limitations: Narrative review that does not present new primary data.; Many candidate therapies discussed are at preclinical stages and not yet tested in patients.; No description in the abstract of a systematic search or meta-analytic pooling, so selection and summary methods are not specified..

AI summary of the abstract, human-reviewed · Jul 2026. Describes what this study reported, not medical advice. View on PubMed · Full text

ReviewInconclusiveLimited evidenceTier 4 · clinical

Novel Radiation Approaches

Neurosurgery clinics of North America · Apr 2021

Temozolomideglioblastoma

This review summarizes novel radiation approaches for glioblastoma. It states the standard care is surgery followed by radiotherapy to 60 Gy with concurrent and adjuvant temozolomide with or without tumor-treating fields, and describes advanced imaging, particle therapies (protons, carbon ions, boron neutron capture), various re-irradiation techniques, and FLASH radiotherapy as promising areas under evaluation.

Studied with: temozolomide, tumor-treating fields.

Key findings
  • Standard of care remains surgical resection followed by radiotherapy to 60 Gy with concurrent and adjuvant temozolomide, with or without tumor-treating fields.
  • Advanced imaging techniques are being evaluated to better guide radiotherapy target-volume delineation and to allow dose escalation.
  • Particle therapies (protons, carbon ions, boron neutron capture therapy) are being assessed as strategies to improve the radiotherapeutic ratio.
  • Stereotactic, hypofractionated, pulsed-reduced dose-rate, and particle radiotherapy are re-irradiation techniques suited for different clinical scenarios.
  • Novel approaches such as FLASH radiotherapy are described as promising advancements for glioblastoma.
Limitations: Narrative review with no original patient-level data reported in the abstract.; Abstract provides no quantitative outcomes, comparative efficacy, or safety data for the approaches mentioned.; Many approaches are described as 'under evaluation' or 'being assessed', indicating preliminary or ongoing study rather than established benefit.; No details on clinical trial results, sample sizes, or follow-up are provided in the abstract..

AI summary of the abstract, human-reviewed · Jul 2026. Describes what this study reported, not medical advice. View on PubMed

What changed recently

The latest additions to Temozolomide's evidence base, and anything that's been retracted.

Recently added

Cancers where Temozolomide reported positive results

Where at least one study reported a positive result, shown with the full picture, not just the wins. Positive results are more likely to be published, and most of these are early lab or animal studies that may not translate to people. This reports what studies found, not what works.

Human evidence

Glioblastoma2 positive1 negative/mixed1 human1 lab
Limitations: Small sample size (31 enrolled; 26 treated per protocol).; Phase 2, non-randomized, single-arm design with case-matched controls rather than a randomized control group.; Potential selection or matching biases inherent to case-matched control comparisons.; Follow-up duration not specified in the abstract.; Funded by Novocure (industry support) which may present a conflict of interest.; In vitro cell-line study only; no animal or human outcomes..
Cited positive studies (2)

Evidence at a glance: Temozolomide by cancer

A deterministic grade of what published studies report for each: strength of evidence, the reported direction, and the largest credible effect, strongest-evidence first. This summarizes findings; it is not a claim that anything works.

GlioblastomaHuman trial / meta-analysisMixed results1 human1 lab

Includes human trial or meta-analysis evidence.

Largest credible effect: PFS hazard ratio 0.377 [0.217–0.653], p=0.0026 PMID 40466642 · median-survival values 12–31.6 across 4 studies

Most authoritative study: Efficacy and safety of adjuvant TTFields plus pembrolizumab and temozolomide in newly diagnosed glioblastoma: A phase 2 study

Findings conflict across studies · Effect sizes reported in only 1 of 5 studies.
Glioblastoma (GBM)Insufficient evidenceInconclusive

No primary experimental studies yet.

Most authoritative study: Cilia at the Crossroads of Tumor Treating Fields and Chemotherapy

No human studies yet · No numeric effect sizes reported · Based on a single study.

Clinical trials studying Temozolomide

9 ongoing · 21 completed · tracked from ClinicalTrials.gov. Recruiting is not the same as proven, and completed is not the same as positive — read the results. Not a recommendation.

Completed

Search all trials on ClinicalTrials.gov →

Inclusion here is not an endorsement. OncoForge makes no claim beyond what the linked studies show. Discuss anything on this page with your oncology team before acting on it.

← All agents · Research Radar