A Phase I Trial of TRC102 (Methoxyamine HCl) in Combination With Temozolomide in Patients With Relapsed Solid Tumors and Lymphomas
Background:
- Base excision repair (BER) of DNA repair pathway has been implicated in resistance to
both alkylating and antimetabolite chemotherapy.
- TRC102 (methoxyamine HCl) acts through a novel mechanism to inhibit BER and has
demonstrated the ability to potentiate the activity of the alkylating agent
temozolomide (TMZ), in vitro and in vivo.
- We hypothesize that TRC102 can be safely co-administered with TMZ and would potentiate
DNA damage caused by TMZ, resulting in antitumor responses.
Primary Objective:
- To establish the safety, tolerability, and maximum tolerated dose (MTD) of oral TRC102
in combination with oral TMZ in patients with refractory solid tumors.
- Evaluate the pharmacokinetic (PK) profile of oral TRC102 when administered in
combination with TMZ.
Secondary Objectives:
- Determine the effects of the study treatment on the level of histone gammaH2AX in
circulating tumor cells (CTCs) and tumor
- To correlate the gammaH2AX response in tumor and CTCs
- Determine the effects of the study treatment on the levels of cleaved caspase 3 and
Ki-67 in tumor
Eligibility:
- Study participants must have histologically confirmed solid tumor that has progressed
on standard therapy known to prolong survival or for which no standard treatment
options exist.
- No major surgery, radiation, or chemotherapy within 4 weeks prior to entering the study
- Adequate organ function
Study Design:
- This is an open-label Phase I trial; traditional 3+3 design.
- Oral TRC102 and oral TMZ will be administered daily, days 1-5 in 28-day cycles
- Once the MTD is established, 6 additional patients will be enrolled at the MTD to
further evaluate that dose for PK and PD endpoints for evidence of DNA damage and
apoptosis.
- During the escalation phase, tumor biopsies will be optional. During the expansion
phase, (once MTD is reached), mandatory paired tumor biopsies will be pursued in the 6
additional patients enrolled to further evaluate PD endpoints.
Interventional
Allocation: Non-Randomized, Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Establish safety, tolerability, and maximum tolerated dose of oral TRC102 in combination with oral TMZ in patients with refractory solid tumors.
1 year
Yes
Shivaani Kummar, M.D.
Principal Investigator
National Cancer Institute (NCI)
United States: Federal Government
130118
NCT01851369
April 2013
February 2015
Name | Location |
---|---|
National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda, Maryland 20892 |