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Metronidazole Drug Interaction Study With MMX® Mesalazine/Mesalamine

A Phase 1, Randomized, Open-label, Crossover, Drug Interaction Study Evaluating the Pharmacokinetic Profiles of Metronidazole Administered Alone and in Combination With MMX® Mesalazine/Mesalamine in Healthy Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01418365
Enrollment
30
Registered
2011-08-17
Start date
2011-08-22
Completion date
2011-10-05
Last updated
2021-06-09

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

Conditions

Healthy

Brief summary

Drug interaction study evaluating the pharmacokinetic profiles of Metronidazole administered alone & in combination with MMX® Mesalazine/mesalamine

Interventions

DRUGMetronidazole + MMX Mesalazine/mesalamine placebo

Metronidazole 750 mg twice daily + MMX Mesalazine/mesalamine placebo once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX Mesalazine/mesalamine placebo single dose on Day 4 orally

DRUGMetronidazole + MMX Mesalazine/mesalamine

Metronidazole 750 mg twice daily + MMX Mesalazine/mesalamine 4.8 g once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX Mesalazine/mesalamine 4.8 g single dose on Day 4 orally

Sponsors

Shire
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Age 18-55 years inclusive at the time of consent. The date of signing informed consent is defined as the beginning of the Screening Period. 2. Subject is willing to comply with any applicable contraceptive requirements of the protocol and is: * Male, or * Non-pregnant, non-lactating female * Females must be at least 90 days post-partum or nulliparous.

Exclusion criteria

1. A history of current or recurrent disease that could affect the colon. This includes gastrointestinal disease, peptic ulceration, gastrointestinal bleeding, celiac disease, lactose intolerance, ulcerative colitis, Crohn's disease, or Irritable Bowel Syndrome. Subjects who have a history of chronic constipation, which is physician diagnosed and treated, will also be excluded from the study (frequency of bowel movements \>48 hours between samples). 2. A history of current or relevant serious, severe, or unstable (acute or progressive) physical or psychiatric illness. 3. A history of gastrointestinal surgery performed within the past 12 months prior to the first dose of investigational product, with the exception of an appendectomy. 4. A history of or current clinically relevant moderate or severe renal or hepatic impairment. 5. A history of asthma or bronchospasm associated with the use of 5-ASA or other non-steroidal anti-inflammatory drugs. 6. Known or suspected intolerance or hypersensitivity to the investigational product or metronidazole, closely related compounds, or any of the stated ingredients 7. A history of, or current, pancreatitis.

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Plasma Concentration Curve (AUC) at Steady State for MetronidazoleAssessed over a 24-hour period starting post-dose on day 4AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.
Maximum Plasma Concentration (Cmax) at Steady State for MetronidazoleAssessed over a 24-hour period starting post-dose on day 4Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.

Countries

United States

Participant flow

Participants by arm

ArmCount
Metronidazole + MMX Placebo First
Metronidazole 750 mg twice daily + MMX placebo once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX placebo single dose on Day 4 orally,first; then Metronidazole 750 mg twice daily + MMX Mesalazine/mesalamine 4.8 g once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX Mesalazine/mesalamine 4.8 g single dose on Day 4 orally, second
15
Metronidazole + MMX Mesalazine/Mesalamine First
Metronidazole 750 mg twice daily + MMX Mesalazine/mesalamine 4.8 g once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX Mesalazine/mesalamine 4.8 g single dose on Day 4 orally, first; then Metronidazole 750 mg twice daily + MMX placebo once daily for 3 days orally, then Metronidazole 750 mg single dose + MMX placebo single dose on Day 4 orally, second
15
Total30

Withdrawals & dropouts

PeriodReasonFG000FG001
First InterventionNon-compliance10
First InterventionWithdrawal by Subject01
Second InterventionWithdrawal by Subject01

Baseline characteristics

CharacteristicMetronidazole + MMX Placebo FirstMetronidazole + MMX Mesalazine/Mesalamine FirstTotal
Age, Continuous35.9 years
STANDARD_DEVIATION 8.84
31.2 years
STANDARD_DEVIATION 11
33.6 years
STANDARD_DEVIATION 10.1
Age, Customized
Between 18 and 55 years
15 Participants15 Participants30 Participants
Region of Enrollment
United States
15 Participants15 Participants30 Participants
Sex: Female, Male
Female
6 Participants6 Participants12 Participants
Sex: Female, Male
Male
9 Participants9 Participants18 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
5 / 296 / 29
serious
Total, serious adverse events
0 / 290 / 29

Outcome results

Primary

Area Under the Plasma Concentration Curve (AUC) at Steady State for Metronidazole

AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.

Time frame: Assessed over a 24-hour period starting post-dose on day 4

Population: Pharmacokinetic Analysis Set defined as all subjects in the Safety Analysis Set for whom the primary pharmacokinetic data were considered sufficient and interpretable. The Safety Analysis Set consists of subjects who took at least 1 dose of investigational product and had at least 1 postdose safety assessment.

ArmMeasureValue (MEAN)Dispersion
Metronidazole + MMX PlaceboArea Under the Plasma Concentration Curve (AUC) at Steady State for Metronidazole217686 ng*h/mlStandard Deviation 49693
Metronidazole + MMX Mesalazine/MesalamineArea Under the Plasma Concentration Curve (AUC) at Steady State for Metronidazole215809 ng*h/mlStandard Deviation 48681
90% CI: [0.961, 0.998]ANOVA
Primary

Maximum Plasma Concentration (Cmax) at Steady State for Metronidazole

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.

Time frame: Assessed over a 24-hour period starting post-dose on day 4

Population: Pharmacokinetic Analysis Set

ArmMeasureValue (MEAN)Dispersion
Metronidazole + MMX PlaceboMaximum Plasma Concentration (Cmax) at Steady State for Metronidazole28193 ng/mlStandard Deviation 6249
Metronidazole + MMX Mesalazine/MesalamineMaximum Plasma Concentration (Cmax) at Steady State for Metronidazole28057 ng/mlStandard Deviation 5522
90% CI: [0.951, 1.04]ANOVA

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026