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

• Register: ClinicalTrials.gov
• Last refreshed on: 19 October 2017
• Main ID: NCT00938366
• Date of registration: 09/07/2009
• Prospective Registration: No
• Primary sponsor: Merck KGaA
• Public title: Drug-Drug Interaction of Cladribine and Pantoprazole in Multiple Sclerosis Subjects
• Scientific 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
• Date of first enrolment: January 2008
• Target sample size: 18
• Recruitment status: Completed
• URL: https://clinicaltrials.gov/show/NCT00938366
• Study type: Interventional
• Phase: Phase 1

Contacts

• Name: Medical Responsible, PhD
• Affiliation: Merck Serono S.A. - Geneva, an affiliate of MerckKGaA, Darmstadt, Germany

Key inclusion & exclusion criteria

Inclusion Criteria:

- 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.

Exclusion Criteria:

- 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

- 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



Age minimum: 18 Years
Age maximum: 65 Years
Gender: All

Health Condition(s) or Problem(s) studied

Multiple Sclerosis

Intervention(s)

Drug: Pantoprazole

Drug: Cladribine

Primary Outcome(s)

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]

Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) 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]

Secondary Outcome(s)

Percentage of Subjects With Any Treatment Emergent Adverse Events (TEAEs), Serious AEs, AEs Leading to Death, and AEs Leading to Discontinuation [Time Frame: Up to 1 year]

Time to Reach the Maximum Plasma Concentration (Tmax) 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]

Apparent Terminal Half-life (t1/2) 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]

Total Body Clearance From Plasma Following Extravascular Administration (CL/f) 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]

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 [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]

Secondary ID(s)

27967

Source(s) of Monetary Support

Please refer to primary and secondary sponsors

Secondary Sponsor(s)

Merck Serono S.A., Geneva

Results

• Results available: Yes
• Date Posted: 20/10/2015
• URL: https://clinicaltrials.gov/ct2/show/results/NCT00938366