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Amoxicillin Drug Interaction Study With MMX® Mesalazine/Mesalamine

A Phase 1, Randomized, Open-label, Crossover, Drug Interaction Study Evaluating the Pharmacokinetic Profiles of Amoxicillin 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
NCT01442688
Enrollment
62
Registered
2011-09-28
Start date
2011-10-07
Completion date
2011-11-20
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

This is a drug interaction study evaluating the pharmacokinetic profiles of amoxicillin administered alone & in combination with MMX Mesalazine/mesalamine.

Interventions

DRUGAmoxicillin + MMX placebo

MMX placebo administered once a day (QD) orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX placebo on Day 4.

DRUGAmoxicillin + MMX mesalazine/mesalamine

MMX mesalazine/mesalamine (4.8 g) administered QD orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX mesalazine/mesalamine (4.8 g) on Day 4.

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 amoxicillin, 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 Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for AmoxicillinAssessed 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) for AmoxicillinAssessed 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
Amoxicillin + MMX Placebo First
MMX placebo administered once a day (QD) orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX placebo on Day 4 for first intervention. Then, MMX mesalazine/mesalamine (4.8 g) administered QD orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX mesalazine/mesalamine (4.8 g) on Day 4 for second intervention.
31
Amoxicillin + MMX Mesalazine/Mesalamine First
MMX mesalazine/mesalamine (4.8 g) administered QD orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX mesalazine/mesalamine (4.8 g) on Day 4 for first intervention. Then, MMX placebo administered once a day (QD) orally on Days 1-3, then a single oral dose of Amoxicillin (500 mg) + MMX placebo on Day 4 for second intervention.
31
Total62

Withdrawals & dropouts

PeriodReasonFG000FG001
First Interventionsubject incarcerated10
First InterventionWithdrawal by Subject10
Second InterventionAdverse Event10

Baseline characteristics

CharacteristicTotalAmoxicillin + MMX Mesalazine/Mesalamine FirstAmoxicillin + MMX Placebo First
Age, Continuous32.2 years
STANDARD_DEVIATION 10.3
30.1 years
STANDARD_DEVIATION 8.91
34.3 years
STANDARD_DEVIATION 11.2
Age, Customized
Between 18 and 55 years
62 Participants31 Participants31 Participants
Region of Enrollment
United States
62 Participants31 Participants31 Participants
Sex: Female, Male
Female
16 Participants9 Participants7 Participants
Sex: Female, Male
Male
46 Participants22 Participants24 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
9 / 6213 / 59
serious
Total, serious adverse events
0 / 620 / 59

Outcome results

Primary

Area Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for Amoxicillin

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

ArmMeasureValue (MEAN)Dispersion
Amoxicillin + MMX PlaceboArea Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for Amoxicillin27.8 h*ug/mlStandard Deviation 5.02
Amoxicillin + MMX Mesalazine/MesalamineArea Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity (AUC 0→∞) for Amoxicillin28.3 h*ug/mlStandard Deviation 6.37
90% CI: [0.995, 1.04]ANOVA
Primary

Maximum Plasma Concentration (Cmax) for Amoxicillin

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
Amoxicillin + MMX PlaceboMaximum Plasma Concentration (Cmax) for Amoxicillin10.3 ug/mlStandard Deviation 2.59
Amoxicillin + MMX Mesalazine/MesalamineMaximum Plasma Concentration (Cmax) for Amoxicillin10.2 ug/mlStandard Deviation 2.89
90% CI: [0.94, 1.04]ANOVA

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