Title

Phase II Study of TPA Plus Dexamethasone & CMT in Hematologic Malignancies
A Phase II Study of 12-O-tetradecanoylphorbol-13-acetate (TPA) Plus Dexamethasone & Choline Magnesium Trisalicylate in the Treatment of Patients With Relapsed/Refractory Acute Myelogenous Leukemia
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Study Participants

    1
This phase II trial is studying the side effects and how well giving tetradecanoylphorbol acetate together with dexamethasone and choline magnesium trisalicylate works in treating patients with relapsed or refractory acute myeloid leukemia.
Study Started
Mar 31
2011
Primary Completion
Oct 31
2011
Study Completion
Sep 30
2014
Results Posted
Jun 22
2015
Estimate
Last Update
Nov 04
2015
Estimate

Drug 12-O-tetradecanoylphorbol-13-acetate

The initial dose of TPA will be 1 mg/week x 3 weeks (Day 1, 8, 15). Up to 6 cycles.

  • Other names: TPA

Drug Dexamethasone

Dexamethasone 10 mg PO qid will start 24h prior to TPA and continue for 24h after TPA x 3 weeks. Up to 6 cycles.

  • Other names: Dexamethasone sodium phosphate

Drug Choline magnesium trisalicylate

Choline magnesium trisalicylate 1500 mg PO TID will begin 24h prior to TPA and continue for 24h post TPA x 3 weeks. Up to 6 cycles.

  • Other names: Trilisate

TPA + Dexamethasone and CMT Experimental

12-O-tetradecanoylphorbol-13-acetate (TPA) plus Dexamethasone & Choline magnesium trisalicylate (Trilisate)

Criteria

Inclusion Criteria

Must have a histologically documented relapsed/refractory AML for which there is no standard therapy that has been demonstrated to have curative or palliative potential.
ECOG performance status of 0-2.
Must be 18 years or older.
Estimated life expectancy > 1 month.

Laboratory data:

total bilirubin ≤ 1.5 x upper limit of normal unless due to Gilbert's syndrome
serum creatinine ≤ 2.0 mg/dl
AST ≤ 3.0 x upper limit of normal
Cardiac ejection fraction > 40%
FEV1.0 > 50% predicted
Prior therapy: > 3 weeks since chemotherapy, biological therapy or radiation; anticipated maximum hematological improvement since last dose of chemotherapy. (Concurrent hydroxyurea administration will be allowed to control WBC count, platelet count, or symptoms).
No active infections.
Negative pregnancy test for women of childbearing potential.
No uncontrolled psychiatric illness or medical illness that the principal investigator feels will compromise the patient's tolerance of the study medication.
Must provide informed consent.

Exclusion Criteria

Patients with an allergy to proton pump inhibitors, required for GI prophylaxis; or salicylates are excluded.
Pregnant or lactating women
Age <18 years. Because no dosing or adverse event data are currently available on the use of TPA alone or in combination with dexamethasone in patients < 18 years of age, children are excluded from this study but will be eligible for future pediatric Phase II combination trials.
The effects of TPA on the developing human fetus are unknown. For this reason, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation and for 10 weeks after. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. Should the female partner of a participant in this study become pregnant or suspect she is pregnant during this study, the PI of this study will be available to provide advice about further medical/obstetric care/referral for the female partner.
Patients with active CNS involvement (documented by radiographic lesions and/or malignant cells in the CSF) will be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
Patients with treatment of any other investigational drug within the last 30 days prior to entering the study.

Summary

TPA + Dexamethasone and CMT

All Events

Event Type Organ System Event Term TPA + Dexamethasone and CMT

Response Rate > 20% for 12-O-tetradecanoylphorbol-13- Acetate (TPA)+ Dexamethasone + Choline Magnesium Trisalicylate(Trilisate)

TPA + Dexamethasone and CMT

Grade 3 and 4 Non-hematologic Treatment-related Toxicity Rates < 25%

TPA + Dexamethasone and CMT

Effects of Treatment on Immunophenotype, Signaling Profile, and Nuclear NF-kB Expression

Cycle 1 of treatment

TPA + Dexamethasone and CMT

Age, Categorical

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

TPA + Dexamethasone and CMT