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A Phase 1B Clinical Trial of Trametinib Plus Digoxin in Patients With Unresectable or Metastatic BRAF Wild-type Melanoma

Primary Purpose

Melanoma

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Trametinib (2mg)/Digoxin (.25mg)
Sponsored by
University of Texas Southwestern Medical Center
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Melanoma

Eligibility Criteria

19 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • 1. Histologic diagnosis of unresectable or metastatic melanoma. For unknown primary disease, diagnosis of metastatic disease by cytology FNA is not acceptable. BRAF wild-type confirmed, and NRAS mutation assessed.

    2. Age > 18 years.

    3. Any number of prior systemic therapeutic regimens for unresectable stage III or stage IV melanoma. This includes chemotherapy, immunotherapy, pathway inhibitors, biochemotherapy, or investigational treatments. Patients may also have received therapies in the adjuvant setting.

    4. ECOG Performance status 0-2.

    5. Adequate organ and marrow function as defined below:

  • leukocytes ≥ 2,000/mcL
  • absolute neutrophil count ≥ 1,000/mcL
  • platelets ≥ 75,000/mcl
  • total bilirubin < 3 x institutional upper limit of normal
  • AST(SGOT)/ALT(SPGT) ≤ 2.5 X institutional upper limit of normal
  • creatinine < 1.5 mg/dL
  • cardiac ejection fraction > 50%
  • QTc < 480msec

    6. Women of child-bearing 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 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria: Has not undergone a hysterectomy or bilateral oophorectomy; or Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months).

    7. All sites of disease must be evaluated within 4 weeks prior to beginning therapy. Patients must have measurable disease as defined by RECIST v1.1.

    8. Ability to understand and the willingness to sign a written informed consent.

    9. Patients must be willing to undergo tumor biopsy pretreatment and at relapse.

Exclusion Criteria:

  1. Subjects who have had chemotherapy or radiotherapy or any systemic therapy for melanoma within 2 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 2 weeks earlier. No concomitant therapy is allowed including IL2, interferon, ipilimumab, anti-PD-1 or anti-PD-L1 antibody, cytotoxic chemotherapy, immunosuppressive agents, or other investigational therapies.
  2. Active infection with hepatitis B or C or HIV.
  3. Subjects with active CNS disease are excluded. Patient with brain metastases previously treated with surgery or radiation therapy and with confirmed SD for >4 weeks are allowed.
  4. Patients are excluded if they have a history of any other malignancy from which the patient has been disease-free for less than 2 years, with the exception of adequately treated and cured basal or squamous cell skin cancer, superficial bladder cancer or carcinoma in situ of the cervix.
  5. Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. Cardiac symptoms or events within 24 weeks.
  6. History of predisposition to retinal vein occlusion or central serous retinopathy.
  7. Inability to assess BRAF or NRAS mutation status. Hypersensitivity to digoxin.
  8. Wolff-Parkinson White syndrome or AV block or sinus node dysfunction.

Sites / Locations

  • UT Southwestern Medical Center

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Trametinib (2mg)/Digoxin (0.25mg)

Arm Description

Trametinib (2mg) will be administered orally on a daily basis. Digoxin (0.25mg) will be administered orally on a daily basis. On a 8-week cycle, duration of treatment can last from 8 to 104 weeks.

Outcomes

Primary Outcome Measures

Dose Limiting Doxicities (DLTs)
To describe the toxicities and estimate the frequency of dose limiting toxicities (DLTs) of digoxin in combination with trametinib in advanced melanoma patients and estimate the frequency of DLTs.

Secondary Outcome Measures

Response Rate
Responses will be measured by RECIST v1.1 every 8 weeks. Response duration will be defined as time from first documented response until disease progression. PFS is time from treatment until disease progression.

Full Information

First Posted
May 12, 2014
Last Updated
May 9, 2018
Sponsor
University of Texas Southwestern Medical Center
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1. Study Identification

Unique Protocol Identification Number
NCT02138292
Brief Title
A Phase 1B Clinical Trial of Trametinib Plus Digoxin in Patients With Unresectable or Metastatic BRAF Wild-type Melanoma
Official Title
A Phase 1B Clinical Trial of Trametinib Plus Digoxin in Patients With Unresectable or Metastatic BRAF Wild-type Melanoma
Study Type
Interventional

2. Study Status

Record Verification Date
May 2018
Overall Recruitment Status
Completed
Study Start Date
July 2014 (undefined)
Primary Completion Date
February 23, 2017 (Actual)
Study Completion Date
February 23, 2017 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
University of Texas Southwestern Medical Center

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The study is a prospective, single-arm, one-site therapeutic trial of the combination of trametinib plus digoxin for advanced melanoma. endpoints are toxicities assessed by nCi CTCae v4.1 within the first 8 weeks, responses measured by ReCiST v1.1 criteria every 8 weeks with scans and exams, tumor sensitivity to the drug combination quantified by tumor regressions in nSG mice, and correlations of response with tumor sensitivity, BRaF status, MaPK inhibitor exposure history, and tumor sodium pump expression. Treatment Dosage and administration Study Drugs: Trametinib (2mg) will be administered orally on a daily basis. Digoxin (0.25mg) will be administered orally on a daily basis. on a 8-week cycle, duration of treatment can last from 8 to 104 weeks. endpoints Toxicities will be assessed via nCi's CTCae v4.1 toxicity criteria. DLTs will be defined based on the rate of drug-related (definitely or probably) grade 3-5 adverse events experienced within the first 8 weeks of study treatment. The MTD will be exceeded if more than 20% of patients on the study experience DLTs. Responses will be measured by ReCiST v1.1 every 8 weeks. Response duration will be defined as time from first documented response until disease progression. PFS is time from treatment until disease progression. Patient tumor sensitivity to the drug combination will be quantified by the amount of subcutaneous established tumor growth inhibition in nSG mice by 5d/week oral gavage with drugs. Tumor nRaS status will be determined by tumor Dna extraction, PCR amplification of exons and Sanger sequencing of nRaS. History of prior MaPK inhibitor therapies will document MeK inhibitor exposures. Sodium pump subunit expression will be analyzed by pretreatment tumor immunohistochemistry and a qualitative 0 to 3+ grading system.
Detailed Description
Primary Objectives: To describe the toxicities and estimate the frequency of dose limiting toxicities (DLTs) of digoxin in combination with trametinib in advanced melanoma patients and estimate the frequency of DLTs. To measure the response rate, response duration and progression free survival (PFS) of digoxin plus trametinib in advanced melanoma. Secondary Objectives: To correlate NSG xenograft sensivity to the drug combination with clinical response in the same patient. To compare response rates in MAPK inhibitor naive versus refractory patients and NRAS mutant versus wild-type patients and for sodium pump 3 subunit high tumor expression versus low tumor expression patients. Rationale: Having established cell culture and xenograft systems for studying patient melanoma samples, the researchers were able to grow tumors in vitro and in vivo from single cells and found a correlation of tumor metastatic behavior in immunocompromised mice and in patients. Recently they have extended the experiments to examine melanoma sensitivity to novel compounds. In screens of FDA approved drugs, they found several cardenolides including digoxin that reproducibly exhibited greater toxicity to primary human melanomas as compared to a range of normal human cells. They then examined the anti-tumor efficacy against primary human melanomas growing in vivo as xenografts. While trametinib, vemurafenib, and digoxin and digitoxin individually slowed the growth of human melanomas xenografts, they did not cause tumor regression. However, the combination of digoxin or digitoxin and trametinib caused substantial tumor regression using melanomas obtained from multiple patients, some with BRAF mutations and some without. The effects were dramatically better than trametinib, digoxin, digitoxin or vemurafenib alone. No difference in efficacy for the combination was seen in BRAF mutant and BRAF wild-type samples.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Melanoma

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
27 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Trametinib (2mg)/Digoxin (0.25mg)
Arm Type
Experimental
Arm Description
Trametinib (2mg) will be administered orally on a daily basis. Digoxin (0.25mg) will be administered orally on a daily basis. On a 8-week cycle, duration of treatment can last from 8 to 104 weeks.
Intervention Type
Drug
Intervention Name(s)
Trametinib (2mg)/Digoxin (.25mg)
Intervention Description
Trametinib (2mg) will be administered orally on a daily basis. Digoxin (0.25mg) will be administered orally on a daily basis. On a 8 week cycle, duration of treatment can last from 8 to 104 weeks.
Primary Outcome Measure Information:
Title
Dose Limiting Doxicities (DLTs)
Description
To describe the toxicities and estimate the frequency of dose limiting toxicities (DLTs) of digoxin in combination with trametinib in advanced melanoma patients and estimate the frequency of DLTs.
Time Frame
within the first 8 weeks of study treatment
Secondary Outcome Measure Information:
Title
Response Rate
Description
Responses will be measured by RECIST v1.1 every 8 weeks. Response duration will be defined as time from first documented response until disease progression. PFS is time from treatment until disease progression.
Time Frame
up to 104 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
19 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: 1. Histologic diagnosis of unresectable or metastatic melanoma. For unknown primary disease, diagnosis of metastatic disease by cytology FNA is not acceptable. BRAF wild-type confirmed, and NRAS mutation assessed. 2. Age > 18 years. 3. Any number of prior systemic therapeutic regimens for unresectable stage III or stage IV melanoma. This includes chemotherapy, immunotherapy, pathway inhibitors, biochemotherapy, or investigational treatments. Patients may also have received therapies in the adjuvant setting. 4. ECOG Performance status 0-2. 5. Adequate organ and marrow function as defined below: leukocytes ≥ 2,000/mcL absolute neutrophil count ≥ 1,000/mcL platelets ≥ 75,000/mcl total bilirubin < 3 x institutional upper limit of normal AST(SGOT)/ALT(SPGT) ≤ 2.5 X institutional upper limit of normal creatinine < 1.5 mg/dL cardiac ejection fraction > 50% QTc < 480msec 6. Women of child-bearing 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 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria: Has not undergone a hysterectomy or bilateral oophorectomy; or Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months). 7. All sites of disease must be evaluated within 4 weeks prior to beginning therapy. Patients must have measurable disease as defined by RECIST v1.1. 8. Ability to understand and the willingness to sign a written informed consent. 9. Patients must be willing to undergo tumor biopsy pretreatment and at relapse. Exclusion Criteria: Subjects who have had chemotherapy or radiotherapy or any systemic therapy for melanoma within 2 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 2 weeks earlier. No concomitant therapy is allowed including IL2, interferon, ipilimumab, anti-PD-1 or anti-PD-L1 antibody, cytotoxic chemotherapy, immunosuppressive agents, or other investigational therapies. Active infection with hepatitis B or C or HIV. Subjects with active CNS disease are excluded. Patient with brain metastases previously treated with surgery or radiation therapy and with confirmed SD for >4 weeks are allowed. Patients are excluded if they have a history of any other malignancy from which the patient has been disease-free for less than 2 years, with the exception of adequately treated and cured basal or squamous cell skin cancer, superficial bladder cancer or carcinoma in situ of the cervix. Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. Cardiac symptoms or events within 24 weeks. History of predisposition to retinal vein occlusion or central serous retinopathy. Inability to assess BRAF or NRAS mutation status. Hypersensitivity to digoxin. Wolff-Parkinson White syndrome or AV block or sinus node dysfunction.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Arthur Frankel, MD
Organizational Affiliation
Professor Internal Medicine-Hematology Oncology
Official's Role
Principal Investigator
Facility Information:
Facility Name
UT Southwestern Medical Center
City
Dallas
State/Province
Texas
ZIP/Postal Code
75390
Country
United States

12. IPD Sharing Statement

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A Phase 1B Clinical Trial of Trametinib Plus Digoxin in Patients With Unresectable or Metastatic BRAF Wild-type Melanoma

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