Trial Outcomes & Findings for A Pharmacokinetics Study to Investigate the Effect of Vemurafenib on Digoxin in Patients With BRAFV600 Mutation-Positive Metastatic Melanoma (NCT NCT01765569)

NCT ID: NCT01765569

Last Updated: 2015-09-23

Results Overview

AUClast = Area under the plasma-concentration time curve from time zero to the last measurable plasma concentration which is presented in hour\*nanogram per milliliter (hour\*ng/mL). Hour 0 (H0) signified pre-dose sampling.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

29 participants

Primary outcome timeframe

Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Results posted on

2015-09-23

Participant Flow

Participant milestones

Participant milestones
Measure
Vemurafenib + Digoxin
Single oral dose of digoxin 0.25 mg tablet on Day 1 in Period A, followed by vemurafenib 960 mg orally BID from Day 8 to Day 28 in Period B, and then single oral dose of digoxin 0.25 mg on Day 29, and vemurafenib 960 mg orally BID from Day 29 to Day 35 in Period C. Digoxin: Participants received single oral dose of digoxin 0.25 mg tablet on Day 1 and Day 29. Vemurafenib: Participants received vemurafenib 960 mg tablet orally BID from Day 8 to Day 35.
Period A
STARTED
29
Period A
COMPLETED
29
Period A
NOT COMPLETED
0
Period B
STARTED
29
Period B
COMPLETED
28
Period B
NOT COMPLETED
1
Period C
STARTED
28
Period C
COMPLETED
27
Period C
NOT COMPLETED
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Vemurafenib + Digoxin
Single oral dose of digoxin 0.25 mg tablet on Day 1 in Period A, followed by vemurafenib 960 mg orally BID from Day 8 to Day 28 in Period B, and then single oral dose of digoxin 0.25 mg on Day 29, and vemurafenib 960 mg orally BID from Day 29 to Day 35 in Period C. Digoxin: Participants received single oral dose of digoxin 0.25 mg tablet on Day 1 and Day 29. Vemurafenib: Participants received vemurafenib 960 mg tablet orally BID from Day 8 to Day 35.
Period B
Withdrawal by Subject
1
Period C
Death
1

Baseline Characteristics

A Pharmacokinetics Study to Investigate the Effect of Vemurafenib on Digoxin in Patients With BRAFV600 Mutation-Positive Metastatic Melanoma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Vemurafenib + Digoxin
n=29 Participants
Single oral dose of digoxin 0.25 mg tablet on Day 1 in Period A, followed by vemurafenib 960 mg orally BID from Day 8 to Day 28 in Period B, and then single oral dose of digoxin 0.25 mg on Day 29, and vemurafenib 960 mg orally BID from Day 29 to Day 35 in Period C. Digoxin: Participants received single oral dose of digoxin 0.25 mg tablet on Day 1 and Day 29. Vemurafenib: Participants received vemurafenib 960 mg tablet orally BID from Day 8 to Day 35.
Age, Continuous
47.8 years
STANDARD_DEVIATION 13.7 • n=5 Participants
Sex: Female, Male
Female
16 Participants
n=5 Participants
Sex: Female, Male
Male
13 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population included participants for whom PK data were collected.

AUClast = Area under the plasma-concentration time curve from time zero to the last measurable plasma concentration which is presented in hour\*nanogram per milliliter (hour\*ng/mL). Hour 0 (H0) signified pre-dose sampling.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUClast) of Digoxin
14.9 hour*ng/mL
Standard Deviation 4.22
27.7 hour*ng/mL
Standard Deviation 10.6

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population. Number of participants analysed = participants evaluable for the analysis.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Area Under the Plasma Concentration-Time Curve From Time Zero to Infinity (AUCinf) of Digoxin
18.5 hour*ng/mL
Standard Deviation 4.64
35.4 hour*ng/mL
Standard Deviation 4.16

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Area Under the Plasma Concentration-Time Curve From Time Zero to 24 Hours (AUC24) of Digoxin
7.73 hour*ng/mL
Standard Deviation 1.86
10.6 hour*ng/mL
Standard Deviation 2.9

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Area Under the Plasma Concentration-Time Curve From Time Zero to 168 Hours (AUC168) of Digoxin
18.2 hour*ng/mL
Standard Deviation 4.85
29.7 hour*ng/mL
Standard Deviation 9.62

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Maximum Plasma Concentration (Cmax) of Digoxin
1.36 ng/mL
Standard Deviation 0.408
1.99 ng/mL
Standard Deviation 0.562

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=26 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Time to Maximum Plasma Concentration (Tmax) of Digoxin
1 hours
Interval 0.5 to 3.0
1 hours
Interval 0.47 to 2.0

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population. Number of participants analysed = participants evaluable for the analysis.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Terminal Half-Life (t1/2) of Digoxin
35 hours
Standard Deviation 8.67
56.4 hours
Standard Deviation 11

PRIMARY outcome

Timeframe: Hour [H] 0, 0.5, 1, 2, 3, 4, 6, 8, 10-12 (Day [D] 1), 24, 30-32 (D2), 48 (D3), 72 (D4), 96 (D5), 168 (D8) post-digoxin dose; H0, 0.5, 1, 2, 3, 4, 6, 8, and 10-12H (D29), 24, 30-32 (D30), 48 (D31), 72 (D32), 96 (D33), 168 (D36) post digoxin dose

Population: PK Population. Number of participants analysed = participants evaluable for the analysis.

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population PK modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.

Outcome measures

Outcome measures
Measure
Period A (Digoxin)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 1.
Period C (Digoxin + Vemurafenib)
n=11 Participants
Participants received single oral dose of digoxin 0.25 mg tablet on Day 29 and vemurafenib 960 mg tablet orally BID from Day 29 to Day 35.
Apparent Clearance (CL/F) of Digoxin
14.5 liters/hour
Standard Deviation 4.95
7.15 liters/hour
Standard Deviation 0.808

Adverse Events

Period A

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Period B

Serious events: 2 serious events
Other events: 20 other events
Deaths: 0 deaths

Period C

Serious events: 1 serious events
Other events: 11 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Period A
n=29 participants at risk
Single oral dose of digoxin 0.25 mg tablet on Day 1.
Period B
n=29 participants at risk
Vemurafenib 960 mg orally BID from Day 8 to Day 28.
Period C
n=28 participants at risk
Single oral dose of digoxin 0.25 mg on Day 29, and vemurafenib 960 mg orally BID from Day 29 to Day 35.
Blood and lymphatic system disorders
Neutropenia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.6%
1/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.4%
1/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Infections and infestations
Upper respiratory tract infection
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.4%
1/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.

Other adverse events

Other adverse events
Measure
Period A
n=29 participants at risk
Single oral dose of digoxin 0.25 mg tablet on Day 1.
Period B
n=29 participants at risk
Vemurafenib 960 mg orally BID from Day 8 to Day 28.
Period C
n=28 participants at risk
Single oral dose of digoxin 0.25 mg on Day 29, and vemurafenib 960 mg orally BID from Day 29 to Day 35.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Skin papilloma
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
6.9%
2/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
General disorders
Pyrexia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.4%
1/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
7.1%
2/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
General disorders
Asthenia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.4%
1/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
14.3%
4/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
General disorders
Fatigue
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
6.9%
2/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Gastrointestinal disorders
Nausea
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
10.3%
3/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
24.1%
7/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
10.7%
3/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Skin and subcutaneous tissue disorders
Rash maculo-papular
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
10.3%
3/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Skin and subcutaneous tissue disorders
Alopecia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
7.1%
2/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Skin and subcutaneous tissue disorders
Hyperkeratosis
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
7.1%
2/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Musculoskeletal and connective tissue disorders
Myalgia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
13.8%
4/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
0.00%
0/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
17.2%
5/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
7.1%
2/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
Metabolism and nutrition disorders
Decreased appetite
0.00%
0/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
6.9%
2/29 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.
3.6%
1/28 • From Screening to 28 days after the last dose of study treatment or until initiation of another anticancer therapy, whichever occurred first.

Additional Information

Medical Communications

Organization: Hoffmann-LaRoche

Phone: 800-821-8590

Results disclosure agreements

  • Principal investigator is a sponsor employee The study being conducted under this agreement is part of the overall study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the study, but after the first publication or presentation that involves the overall study. Sponsor may request that confidential information be deleted and/or the publication be postponed in order to protect the Sponsor's intellectual property rights.
  • Publication restrictions are in place

Restriction type: OTHER