Drugs / Combretastatin A1 Diphosphate
last change May 2022 re-read 3 minutes ago

Combretastatin A1 Diphosphate

also known as OXi4503
Developed for
metastatic neoplasm
Investigated by
Mateon Therapeutics

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Clinical hold US (FDA) — acute myeloid leukemia, myelodysplastic syndromes 2018-08-16

“Food and Drug Administration (FDA) placed a partial clinical hold on Study OX1222 during a telephone conversation held with the Company on August 16, 2018.” oncotelic.com ↗

Trials 1

201020112012201320142015201620172018201920202021202220232024202520262027
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 1 NCT00960557 Jul 2009 → Oct 2010 metastatic neoplasm Mateon Therapeutics Completed No outcome recorded

News releases announcing trial results or a regulatory action · 8

DateIssuerRelease
2020-09-16 Mateon Therapeutics Regulatory FDA Granted Pediatric Disease Designation for OXi-4503 oncotelic.com ↗
2019-12-27 Mateon Therapeutics Results Mateon Therapeutics Team Publishes a New Peer-Reviewed Oncology Article on the Positive Clinical Study Results for Its Lead Anti-Leukemia Drug Combretastatin A1 Plus Cytarabine in Adult Patients With Relapsed Acute Myeloid Leukemia oncotelic.com ↗
The study showed that adding OXi4503 to the standard chemotherapy drug cytarabine was generally well tolerated by AML patients and a maximum tolerated dose level of OXi4503 was identified as the recommended dose for further clinical development of this novel two-drug combination.
2019-12-23 Mateon Therapeutics Results Mateon Therapeutics Announces Positive Clinical Study Results for Its Lead Anti-Leukemia Drug Combretastatin A1 Plus Cytarabine in Adult Patients with Relapsed Acute Myeloid Leukemia oncotelic.com ↗
In 26 evaluable AML patients, there were 4 complete remissions (CR/CRi) and one partial remission (PR).
2018-08-17 Mateon Therapeutics Regulatory Mateon Therapeutics Receives Notice of Partial Clinical Hold for OX1222 Study oncotelic.com ↗
The partial clinical hold applies to the 12.2 mg/m 2 dose of OXi4503.
2017-07-31 Mateon Therapeutics Results Mateon Therapeutics Announces Positive Initial Data from Fifth Cohort of Phase 1b Study of OXi4503 in Relapsed/Refractory AML oncotelic.com ↗
Two of four patients had morphological complete remissions after one cycle of treatment with 9.76 mg/m 2 of OXi4503.
2017-06-07 Mateon Therapeutics Regulatory Mateon Therapeutics Receives FDA Fast Track Designation for OXi4503 in Patients with Acute Myeloid Leukemia oncotelic.com ↗
2017-03-15 Mateon Therapeutics Results Mateon Therapeutics Announces Initial Data from Third Cohort of Phase 1b Study of OXi4503 in Relapsed/Refractory AML oncotelic.com ↗
One patient (25%) in the third dose cohort - who has a high risk TP53 gene mutation - had a complete remission.
2016-12-06 Mateon Therapeutics Results Mateon Announces Presentation of OXi4503 AML Study Data at 58th Annual Meeting of American Society of Hematology oncotelic.com ↗
In total 2 of 10 (20%) patients achieved a complete remission (CR) on treatment and currently remain in CR without further treatment - one at 6 months and the other at 3 months.

All press releases naming this drug 11 releases

DateIssuerRelease

Evidence & citations 3 cited values

Every value below carries the sentence it was read from. 1 source stands behind the page.

FieldValueCited text
Known as Combretastatin A1 Diphosphate ClinicalTrials.gov intervention name — accepted as the source's own label NCT00960557 ↗
Known as OXi4503 “Combretastatin A1 Diphosphate (OXi4503)” NCT00960557 ↗
Route Intravenous “OXi4503 administered IV on Days 1, 8, and 15 of each 28-day cycle.” NCT00960557 ↗