Temozolomide

Generic Name
Temozolomide
Brand Names
Temodar, Temomedac, Temodal, Temozolomide Sun, Temozolomide Accord, Temozolomide Teva
Drug Type
Small Molecule
Chemical Formula
C6H6N6O2
CAS Number
85622-93-1
Unique Ingredient Identifier
YF1K15M17Y
Background

Refractory anaplastic astrocytoma (WHO grade III) and Glioblastoma multiforme (WHO grade IV) are primary malignant brain tumours with poor prognosis and limited treatment options. Despite considerable genetic heterogeneity, these tumours often have impaired DNA repair systems, rendering them initially sensitive to alkylating agents, although they invariably develop resistance to these agents over time. Temozolomide is an imidazotetrazine prodrug that is stable at acidic pH but undergoes spontaneous nonenzymatic hydrolysis at neutral or slightly basic pH; these properties allow for both oral and intravenous administration. Following initial hydrolysis, further reactions liberate a highly reactive methyl diazonium cation capable of methylating various residues on adenosine and guanine bases leading to DNA lesions and eventual apoptosis. Temozomolide as an adjunct to radiotherapy followed by maintenance dosing remains the standard of care for both Glioblastoma and refractory anaplastic astrocytoma.

Temozolomide was granted FDA approval on August 11, 1999, as an oral capsule and subsequently on February 27, 2009, as an intravenous injection. It is currently marketed under the trademark TEMODAR® by Merck.

Indication

Temozolomide is indicated in adult patients for the treatment of newly diagnosed glioblastoma concomitantly with radiotherapy and for use as maintenance treatment thereafter. It is also indicated for the treatment of refractory anaplastic astrocytoma in adult patients or adjuvant therapy for adults with newly diagnosed anaplastic astrocytoma.

Associated Conditions
Advanced Melanoma, High Grade Glioma: Glioblastoma (GBM), Primary Central Nervous System Lymphoma, Refractory Ewing Sarcoma, Refractory Neuroblastoma, Soft Tissue Sarcoma, Advanced Neuroendocrine tumor, Newly diagnosed Anaplastic Astrocytoma (AA), Refractory Anaplastic astrocytoma, Refractory, advanced Mycosis fungoides, Refractory, advanced Sezary Syndrome
Associated Therapies
-

Study of TG02 in Elderly Newly Diagnosed or Adult Relapsed Patients With Anaplastic Astrocytoma or Glioblastoma

First Posted Date
2017-07-21
Last Posted Date
2022-05-31
Lead Sponsor
European Organisation for Research and Treatment of Cancer - EORTC
Target Recruit Count
71
Registration Number
NCT03224104
Locations
🇨🇭

UniversitaetsSpital Zurich, Zürich, Switzerland

🇦🇹

Universitaetskliniken der Uni Wien - Universitaetsklinikum Wien - AKH uniklinieken, Vienna, Austria

🇫🇷

Assistance Publique - Hopitaux de Marseille - Hôpital de La Timone, Marseille, France

and more 7 locations

Oral Capecitabine and Temozolomide (CAPTEM) for Newly Diagnosed GBM

First Posted Date
2017-07-11
Last Posted Date
2023-11-08
Lead Sponsor
Northwell Health
Target Recruit Count
67
Registration Number
NCT03213002
Locations
🇺🇸

Lenox Hill Brain Tumor Center, New York, New York, United States

A Study of Tegafur Combined With Temozolomide Versus Tegafur Combined With Temozolomide and Thalidomide in Subjects With Advanced Extrapancreatic Neuroendocrine Tumor

First Posted Date
2017-06-29
Last Posted Date
2017-06-29
Lead Sponsor
Chinese Academy of Medical Sciences
Target Recruit Count
60
Registration Number
NCT03204032
Locations
🇨🇳

Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing, Beijing, China

Pembrolizumab and Standard Therapy in Treating Patients with Glioblastoma

First Posted Date
2017-06-23
Last Posted Date
2024-10-22
Lead Sponsor
Mayo Clinic
Target Recruit Count
52
Registration Number
NCT03197506
Locations
🇺🇸

Mayo Clinic in Arizona, Scottsdale, Arizona, United States

🇺🇸

Mayo Clinic Hospital in Arizona, Phoenix, Arizona, United States

🇺🇸

Mayo Clinic in Rochester, Rochester, Minnesota, United States

T-DM1 Alone Versus T-DM1 and Metronomic Temozolomide in Secondary Prevention of HER2-Positive Breast Cancer Brain Metastases Following Stereotactic Radiosurgery

First Posted Date
2017-06-19
Last Posted Date
2023-10-11
Lead Sponsor
National Cancer Institute (NCI)
Target Recruit Count
12
Registration Number
NCT03190967
Locations
🇺🇸

National Institutes of Health Clinical Center, Bethesda, Maryland, United States

Study of Chemoimmunotherapy for High-Risk Neuroblastoma

Early Phase 1
Active, not recruiting
Conditions
Interventions
First Posted Date
2017-06-16
Last Posted Date
2024-07-03
Lead Sponsor
Memorial Sloan Kettering Cancer Center
Target Recruit Count
48
Registration Number
NCT03189706
Locations
🇺🇸

Memorial Sloan Kettering Cancer Center, New York, New York, United States

Proton Beam or Intensity-Modulated Radiation Therapy in Preserving Brain Function in Patients With IDH Mutant Grade II or III Glioma

First Posted Date
2017-06-08
Last Posted Date
2024-03-21
Lead Sponsor
NRG Oncology
Target Recruit Count
148
Registration Number
NCT03180502
Locations
🇺🇸

University of Maryland/Greenebaum Cancer Center, Baltimore, Maryland, United States

🇺🇸

Central Maryland Radiation Oncology in Howard County, Columbia, Maryland, United States

🇺🇸

Maryland Proton Treatment Center, Baltimore, Maryland, United States

and more 31 locations

Atezolizumab in Combination With Temozolomide and Radiation Therapy in Treating Patients With Newly Diagnosed Glioblastoma

First Posted Date
2017-06-02
Last Posted Date
2024-11-28
Lead Sponsor
M.D. Anderson Cancer Center
Target Recruit Count
80
Registration Number
NCT03174197
Locations
🇺🇸

M D Anderson Cancer Center, Houston, Texas, United States

Image-Based Quantitative Assessment of Acute Radiation-Induced Changes in Glioma

Not Applicable
Terminated
Conditions
Interventions
First Posted Date
2017-05-30
Last Posted Date
2019-10-01
Lead Sponsor
University of Alabama at Birmingham
Target Recruit Count
5
Registration Number
NCT03168919
Locations
🇺🇸

University of Alabama at Birmingham, Birmingham, Alabama, United States

A Study Assessing Pamiparib With Radiation and/or Temozolomide (TMZ) in Participants With Newly Diagnosed or Recurrent Glioblastoma

First Posted Date
2017-05-12
Last Posted Date
2022-05-31
Lead Sponsor
BeiGene USA, Inc.
Target Recruit Count
116
Registration Number
NCT03150862
Locations
🇺🇸

UCLA Neuro-Oncology, Los Angeles, California, United States

🇺🇸

Sarah Cannon Research Institute at Health One, Denver, Colorado, United States

🇺🇸

Washington University, Saint Louis, Missouri, United States

and more 17 locations
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