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A Tasisulam and Midazolam Drug Interaction Study in Cancer Patients

The Effect of Tasisulam on CYP3A-mediated Metabolism of Midazolam: A Pharmacokinetic Interaction Study in Cancer Patients With Advanced and/or Metastatic Tumors or Lymphoma

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01209832
Enrollment
11
Registered
2010-09-27
Start date
2010-09-30
Completion date
2011-01-31
Last updated
2019-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Cancer

Keywords

Metastatic Tumors, Lymphoma

Brief summary

The purpose of this study is to evaluate whether tasisulam acts as an inducer of CYP3A using midazolam as a sensitive and specific probe substrate of CYP3A. The study will also assess the safety and tolerability of tasisulam and midazolam given in combination and document any antitumor activity with tasisulam.

Interventions

Patient specific dose, administered intravenously, on Day 1 of a 28-day cycle. Minimum of one (1) 28-day cycle. Patients may continue to receive tasisulam until disease progression or until discontinuation criteria are met.

DRUGMidazolam

1.2 milligrams (mg), administered orally once prior to the initiation of tasisulam therapy and once on Day 8 after initiation of tasisulam therapy

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have histologically or cytologically confirmed solid malignancy or lymphoma that is advanced and/or metastatic disease which has not responded to standard therapy or for which no standard therapy exists. * Have a performance status of less than or equal to 2 on the Eastern Cooperative Oncology Group (ECOG) scale * Have discontinued all previous therapies for cancer, including chemotherapy, radiotherapy, cancer-related hormonal therapy, or other investigational therapy for at least 30 days (45 days for mitomycin-C or nitrosoureas) prior to study enrollment and recovered from the acute effects of therapy. Limited field radiotherapy is permitted (in consultation with the investigator) * Have an estimated life expectancy, in the judgment of the investigator, of greater than or equal to 12 weeks

Exclusion criteria

* Have received treatment within 30 days of the initial dose of study drug with an experimental agent for non-cancer indications that has not received regulatory approval for any indication * Have symptomatic central nervous system (CNS) malignancy or metastasis (screening not required). Patients with active brain metastasis are excluded * Have current acute or chronic leukemia * Patients who have clinically significant chronic obstructive pulmonary disease (COPD) or other respiratory diseases that may be at risk during periods of conscious sedation under midazolam * Patients with a known history of obstructive sleep apnea, difficult intubation, or syndromes associated with airway abnormalities.

Design outcomes

Primary

MeasureTime frame
Midazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to the Last Time Point With Measurable Concentrations (AUC 0-tlast)Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.
Midazolam Pharmacokinetics: Maximum Concentration (Cmax)Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.
Midazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to Infinity (AUC 0-infinity)Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.

Secondary

MeasureTime frameDescription
Number of Participants With Tumor ResponseBaseline to Day 15 of Maintenance Period up to 3 monthsNumber of participants with tumor response = number of participants with complete response (CR) + number of participants with partial response (PR), as classified by the investigators according to the Response Evaluation Criteria In Solid Tumors (RECIST) guidelines. CR is disappearance of all target and non-target lesions; PR is ≥30% decrease in sum of longest diameter of target lesions.
Tasisulam Pharmacokinetics: Maximum Concentration (Cmax)Period 2: Predose, preinfusion start, 1, 1.75, 2 (post end of infusion), 2.5, 3, 4, 6, 8, 24, 48, 72, 120, 168, and 336 hours.
Tasisulam Pharmacokinetics: Area Under the Concentration-Time Curve Above the Albumin Corrected Threshold (AUCalb)Period 2: Predose, preinfusion start, 1, 1.75, 2 (post end of infusion), 2.5, 3, 4, 6, 8, 24, 48, 72, 120, 168, and 336 hours.Tasisulam is highly bound to albumin. AUCalb is a surrogate measure of exposure to unbound (free) tasisulam.

Countries

France

Participant flow

Participants by arm

ArmCount
Midazolam + Tasisulam
Period 1 (7 days): 1.2 milligrams (mg) midazolam orally on Day 1. Period 2 (28 days): Tasisulam intravenously to target area under the curve above the albumin corrected threshold (AUCalb) in the range of 1200 to 6400 hour\*micrograms per milliliter (h\*mcg/mL) on Day 1 and 1.2 mg midazolam orally on Day 8. Maintenance Period (35 days): Tasisulam was dosed intravenously to target AUCalb in the range of 1200 to 6400 h\*mcg/mL on Day 1.
10
Total10

Withdrawals & dropouts

PeriodReasonFG000
Period 1Sponsor Decision and was not dosed1
Period 2Sponsor Decision1

Baseline characteristics

CharacteristicMidazolam + Tasisulam
Age, Continuous57 years
STANDARD_DEVIATION 9.4
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
10 Participants
Region of Enrollment
France
10 Participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
7 / 109 / 102 / 42 / 3
serious
Total, serious adverse events
0 / 101 / 100 / 40 / 3

Outcome results

Primary

Midazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to Infinity (AUC 0-infinity)

Time frame: Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.

Population: All participants who received study drug and had sufficient pharmacokinetics data to calculate AUC0-infinity. Analysis used data according to the treatment the participants actually received.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
MidazolamMidazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to Infinity (AUC 0-infinity)27.0 nanograms*hour per milliliter (ng*h/mL)Geometric Coefficient of Variation 36
Midazolam + TasisulamMidazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to Infinity (AUC 0-infinity)22.8 nanograms*hour per milliliter (ng*h/mL)Geometric Coefficient of Variation 54
Primary

Midazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to the Last Time Point With Measurable Concentrations (AUC 0-tlast)

Time frame: Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.

Population: All participants who received study drug and had sufficient pharmacokinetics data to calculate AUC0-tlast. Analysis used data according to the treatment the participants actually received.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
MidazolamMidazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to the Last Time Point With Measurable Concentrations (AUC 0-tlast)25.9 nanograms*hour per milliliter (ng*h/mL)Geometric Coefficient of Variation 35
Midazolam + TasisulamMidazolam Pharmacokinetics: Area Under the Concentration-Time Curve From Time Zero to the Last Time Point With Measurable Concentrations (AUC 0-tlast)22.5 nanograms*hour per milliliter (ng*h/mL)Geometric Coefficient of Variation 55
Primary

Midazolam Pharmacokinetics: Maximum Concentration (Cmax)

Time frame: Period 1 and 2: Predose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 9, 11, 24, 48, and 72 hours post-dose.

Population: All participants who received study drug and had sufficient pharmacokinetics data to estimate Cmax. Analysis used data according to the treatment the participants actually received.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
MidazolamMidazolam Pharmacokinetics: Maximum Concentration (Cmax)9.07 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 41
Midazolam + TasisulamMidazolam Pharmacokinetics: Maximum Concentration (Cmax)9.48 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 51
Secondary

Number of Participants With Tumor Response

Number of participants with tumor response = number of participants with complete response (CR) + number of participants with partial response (PR), as classified by the investigators according to the Response Evaluation Criteria In Solid Tumors (RECIST) guidelines. CR is disappearance of all target and non-target lesions; PR is ≥30% decrease in sum of longest diameter of target lesions.

Time frame: Baseline to Day 15 of Maintenance Period up to 3 months

Population: All participants who received study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MidazolamNumber of Participants With Tumor Response0 Participants
Secondary

Tasisulam Pharmacokinetics: Area Under the Concentration-Time Curve Above the Albumin Corrected Threshold (AUCalb)

Tasisulam is highly bound to albumin. AUCalb is a surrogate measure of exposure to unbound (free) tasisulam.

Time frame: Period 2: Predose, preinfusion start, 1, 1.75, 2 (post end of infusion), 2.5, 3, 4, 6, 8, 24, 48, 72, 120, 168, and 336 hours.

Population: All participants who received tasisulam and had pharmacokinetics data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
MidazolamTasisulam Pharmacokinetics: Area Under the Concentration-Time Curve Above the Albumin Corrected Threshold (AUCalb)5840 hour*micrograms/milliliter (h*mcg/mL)Geometric Coefficient of Variation 50
Secondary

Tasisulam Pharmacokinetics: Maximum Concentration (Cmax)

Time frame: Period 2: Predose, preinfusion start, 1, 1.75, 2 (post end of infusion), 2.5, 3, 4, 6, 8, 24, 48, 72, 120, 168, and 336 hours.

Population: All participants who received tasisulam and had pharmacokinetics data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
MidazolamTasisulam Pharmacokinetics: Maximum Concentration (Cmax)358 micrograms per milliliter (mcg/mL)Geometric Coefficient of Variation 17

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026