AzTrials
AzTrials

Multiple SclerosisPhase 1NCT00938366

Drug-Drug Interaction of Cladribine and Pantoprazole in Multiple Sclerosis Subjects

A Phase 1 study testing Cladribine and Pantoprazole in people with Multiple Sclerosis, run by Merck KGaA, Darmstadt, Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of the study is to assess the influence of pantoprazole on the pharmacokinetic profile of cladribine, especially in terms of extent of absorption of cladribine since pH-modifying drug may potentially affect the stability of cladribine and thereby its bioavailability Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Multiple Sclerosis
What is being tested?
Cladribine and Pantoprazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
No sites listed yet
Study dates
Jan 2008to Jan 2009
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects with a body mass index less than or equal to (<=) 28 and have a body weight greater than (>) 60 kilogram (kg) and less than (<) 120 kg, at screening
  • Able to understand informed consent and had given written, informed consent
  • Had a diagnosis of clinically stable and definite multiple sclerosis (MS) by either McDonald or Poser criteria
  • Expanded disability status scale (EDSS) score not to exceed 5.0
  • Male or non-pregnant, non-breast feeding women aged 18 to 65 years, inclusive at the time that informed consent was obtained
  • Female subjects lacking childbearing potential defined as post-menopausal for at least two years, surgically or medically sterile or sexually inactive; or willing to avoid pregnancy by using an adequate method of birth control for 28 days prior to, during and up to 90 days after the last administration of trial medication
  • Other protocol defined inclusion criteria could apply.

Who cannot join

  • Subjects presenting a severe or unstable disorder: poorly controlled diabetes or arterial hypertension, severe cardiac insufficiency, unstable ischemic heart disease, a significant pre-existing hematological disease, or any medical condition, which in the opinion of the investigator, would constitute a risk or a contraindication for the participation of the subject to the study or that could interfere with the study objectives, conduct or evaluation
  • Subjects who were on MS treatment; and subjects who were on a non-stable symptomatic MS treatment (stable dose was defined as 3 weeks or longer prior to first study dose)
  • Clinically significant abnormal laboratory test results or electrocardiogram findings that in the opinion of the investigator could increase the safety risk to the subject
  • Positive results from serology examination for Hepatitis B surface antigen (HbsAg) not due to vaccination, hepatitis B core antibody (HbcAb), Hepatitis C virus antibody (anti-HCV) or Human Immunodeficiency antibody (anti-HIV)
  • Signs and symptoms of Transmissible Spongiform Encephalopathy at screening, or family members who suffered from such
  • Presence of chronic or recurrent infection or any acute infection within the last 2 weeks before first dosing in each study period
Show all 22Show fewer
  • Presence of gastrointestinal disease that, in the opinion of the investigator, could affect the pharmacokinetic outcome of the study
  • Consumption of any concomitant medication that could directly influence gastric acidity (example: use of antacids, histamine receptor (H2) antagonists or other proton pump inhibitor) taken within 7 days of study day 1 and throughout the study period
  • Intake of alcoholic beverages, caffeine and caffeine containing beverages, grapefruit, oranges, cranberries and juices of these three fruits or smoking in the 48 hours prior to first dose and 48 hours post dose (cladribine)
  • Exposure to any investigational drug or the use of any investigational device in the 12 weeks prior to first dose
  • Intake of any medications that could directly influence gastrointestinal motility and absorption of cladribine (example, use of H2-antagonists, proton pump inhibitors) 7 days prior to cladribine administration
  • Any immunomodulatory therapy (including but not limited to glatiramer acetate, interferons, or natalizumab) and treatment with oral or systemic corticosteroids or adrenocorticotropic hormone within 28 days of first dosing
  • Any cytokine or anti-cytokine therapy, IV immunoglobulin administration or plasmapheresis was prohibited in the 3 months prior to first dosing
  • Current history or presence of drug or alcohol abuse, confirmed by positive test results for drugs of abuse and/or alcohol or had a history of drug or alcohol abuse. Alcohol abuse was defined as: an average daily intake of more than 3 units or a weekly intake of more than 21 for males and 14 units for females where 1 unit equals 8-10 gram alcohol (1 unit equals 340 milliliter [mL] of beer, 115 mL of wine or 43 mL of spirits)
  • History or presence of hypertension or other significant cardiovascular abnormality, history of heart or kidney disease
  • Current diagnosis or personal history of cancer
  • Smoke 10 cigarettes or more per day or equivalent
  • Loss or donation of more than 400 mL of blood in the 12 weeks prior to first dose.
  • Definite or suspected personal history or family history of adverse drug reaction or hypersensitivity to drugs with a similar chemical structure to cladribine or pantoprazole or with known hypersensitivity to cladribine or pantoprazole excipients
  • Presence or history of any serious allergy (requiring hospitalization or prolonged systemic treatment)
  • Pregnant or nursing women. Treatment of pregnant and nursing women with cladribine in this study was prohibited
  • Signs or symptoms of neurological disease other than MS that could explain the symptoms of the subject

About this study

Official title: An Open-label, Cross Over Study, to Assess the Interactions of Pantoprazole (Proton Pump Inhibitor) With Oral Cladribine Administered in Subjects With Multiple Sclerosis

The purpose of the study is to assess the influence of pantoprazole on the pharmacokinetic profile of cladribine, especially in terms of extent of absorption of cladribine since pH-modifying drug may potentially affect the stability of cladribine and thereby its bioavailability

Being tested
Cladribine, Pantoprazole
Medical subject headings
Multiple Sclerosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CladribineDrug

    Subjects will receive two single doses of 10 mg cladribine orally in either first or second intervention period followed by a washout period of 10-25 days.

  • PantoprazoleDrug

    Subjects will receive a pantoprazole 40 mg orally for 2 consecutive days either in first or second intervention period.

Study groups in NCT00938366
Study groupRoleWhat they receive
Cladribine followed by Cladribine + PantoprazoleExperimentalSubjects will receive a single dose of cladribine10 milligram (mg) orally on Day 1. After a wash out period of 10-25 days, subjects will receive pantoprazole 40 mg orally for 2 consecutive days. On Day 2 of the pantoprazole administration, a single dose of cladribine 10 mg will be administered orally 3 hours after the second pantoprazole dose.
Receives: Drug: Cladribine; Drug: Pantoprazole
Cladribine + pantoprazole followed by CladribineExperimentalSubjects will receive pantoprazole 40 mg orally for 2 consecutive days. On Day 2 of the pantoprazole administration, a single dose of cladribine 10 mg will be administered orally 3 hours after the second pantoprazole dose. After a wash out period of 10-25 days, subjects will receive a single dose of cladribine 10 mg orally.
Receives: Drug: Cladribine; Drug: Pantoprazole

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum Plasma Concentration (Cmax) of Cladribine

    The maximum or peak plasma concentration observed after the administration of cladribine.

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

  2. Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of Cladribine

    The AUC(0-inf) was estimated by determining the total area under the curve of the concentration versus time curve extrapolated to infinity.

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

Secondary outcomes (5)
  1. Area Under the Plasma Concentration-time Curve From Time Zero to the Last Sampling Time at Which the Concentration is at or Above the Lower Limit of Quantification (AUC0-t) of Cladribine

    The AUC (0-t) was defined as the area under the plasma concentration versus time curve from time zero (pre-dose) to time of last quantifiable concentration (0-t).

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

  2. Time to Reach the Maximum Plasma Concentration (Tmax) of Cladribine

    The tmax was defined as time taken by the drug cladribine to reach Cmax.

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

  3. Apparent Terminal Half-life (t1/2) of Cladribine

    The apparent terminal half-life was defined as the time required for the plasma concentration of drug cladribine to decrease 50 percent (%) in the final stage of its elimination.

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

  4. Total Body Clearance From Plasma Following Extravascular Administration (CL/f) of Cladribine

    Clearance of a drug was a measure of the rate at which cladribine is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose was influenced by the fraction of the dose absorbed.

    Measured: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose

  5. Percentage of Subjects With Any Treatment Emergent Adverse Events (TEAEs), Serious AEs, AEs Leading to Death, and AEs Leading to Discontinuation

    An AE was any untoward medical occurrence in a subject who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 1 year, that were absent before treatment or that worsened relative to pre treatment state. AEs Leading to Death and AEs Leading to Discontinuation were also presented in the outcome measure.

    Measured: Up to 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2009 (estimated)
  2. Study startJan 2008
  3. Primary completionJan 2009
  4. Study completionJan 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00938366
Sponsor's protocol ID
27967
Status last verified
Mar 2016
First submitted
9 Jul 2009
Last updated
14 Apr 2016
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Cladribine and Pantoprazole in people with Multiple Sclerosis, run by Merck KGaA, Darmstadt, Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Apr 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Oct 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum Plasma Concentration (Cmax) of Cladribine (time frame: Pre-dose (within 30 minutes prior to dosing) and at 0.5,1, 3, 6, 8, 12,16, 24, 36, 48 Hour post-dose). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2016.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in