Condition category
Digestive System
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Drug CCX507-B is being studied as a possible treatment for patients with inflammatory bowel diseases (IBD) such as ulcerative colitis (UC) or Crohn’s disease (CD). Patients with these diseases suffer considerable lifestyle disruption and disability due to their condition. As the disease progresses, it often leads to patients needing repeated surgeries to remove affected areas of the stomach and intestine. Therefore, a critical need for safe and effective non-surgical treatment of UC still remains.

Who can participate?
This study will include 30 healthy men and women aged 18-65.

What does the study involve?
The subjects will be randomly allocated to take CCX507-B or a placebo (sugar pill), administered orally. First, they will consume this pill once and later, they will consume this pill for a week. Participants will be followed up for 3 weeks.

What are the possible benefits and risks of participating?
Since this study mainly looks at the safety and tolerability of CCX507-B, there is likely no benefit for study subjects, other than the knowledge that they are potentially helping us understand how to use the medication in future studies. Safety risk is considered to be low, because CCX507-B has been tested safely in nonclinical studies.

Where is the study run from?
Pharmaceutical Research Associates Group B.V., Netherlands.

When is the study starting and how long is it expected to run for?
This study started in April 2014 and runs until June 20154.

Who is funding the study?
ChemoCentryx, Inc. (USA).

Who is the main contact?
Ms Antonia Potarca

Trial website

Contact information



Primary contact

Ms Antonia Potarca


Contact details

850 Maude Avenue
Mountain View
United States of America

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

A double-blind, placebo-controlled, single and multiple ascending dose phase 1 study to evaluate the safety, tolerability, and pharmacokinetics of CCX507-B in healthy male and female subjects


Study hypothesis

CCX507-B will be safe and well tolerated at all dose levels tested.

Ethics approval

The Independent Ethics Committee of the Foundation ‘Evaluation of Ethics in Biomedical Research,’ Assen, the Netherlands,10/03/2014

Study design

Double-blind placebo-controlled study with two study periods. Period 1 will be a single dose period and Period 2 will be a multiple dose period.

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet


Inflammatory Bowel Diseases (IBD) such as ulcerative colitis (UC) or Crohn’s disease (CD)


CCX507-B (30, 60 and 90 mg CCX507-B single dose and multiple doses for 7 days) or placebo. Period 1 involves subjects being randomized to CCX507-B or placebo and being dosed a single time. Period 2 involved subjects being randomized to CCX507-B or placebo and being dosed over a period of 7 days. After the conclusion of Period 2, subjects are followed for 3 weeks.

Intervention type



Phase I

Drug names


Primary outcome measures

Safety and tolerability of CCX507-B. Safety is measured by adverse event, serum chemistry, urinalysis, and hematology assessments at Baseline, Days 2 and 4 after the single dose and Baseline, Days 2, 4, 8 and 15 of the multi-dose period.

Secondary outcome measures

Pharmacokinetic and pharmacodynamic profiles of CCX507-B. Pharmacokinetic profile is assessed on all study days, i.e., Days 1 through 4 of the single dose period and Days 1 through 15 of the multi-dose period. Pharmacodynamic markers are assessed at Baseline and on Days 1 and 2 of the single-dose period, and at Baseline and on Days 1, 2, 4, 5, 7, and 8 of the multi-dose period.

Overall trial start date


Overall trial end date


Reason abandoned


Participant inclusion criteria

1. Male or female subjects, aged 18-65 inclusive
2. Willing and able to give written Informed Consent and to comply with the requirements of the study protocol
3. Negative result of the human immunodeficiency virus (HIV) screen, the hepatitis B screen, and the hepatitis C screen
4. Female subjects of childbearing potential, and male subjects with partners of childbearing potential, may participate if adequate contraception is used

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Women who are pregnant or breastfeeding
2. History of use of tobacco and/or nicotine-containing products within the 3 months prior to study entry
3. History of drug abuse within 1 year prior to study entry
4. History of alcohol abuse within 5 years prior to study entry
5. History of any form of cancer
6. Consumed alcoholic beverages, or any food or drink containing grapefruit or Seville oranges within 48 hours prior to Day -1
7. History or presence of any medical condition or disease which, in the opinion of the Investigator, may place the subject at unacceptable risk for study participation
8. Donated or lost more than 50 mL of blood or blood products within 56 days prior to screening, or donated plasma within 7 days of randomization
8. Subject's hemoglobin less than the lower limit of normal at screening
9. Participated in any clinical study of an investigational product within 60 days prior to randomization
10. Subject has any evidence of hepatic disease; aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase, or bilirubin > 1.5 x the upper limit of normal
11. Subject has any evidence of renal impairment; serum creatinine > 1.5 x upper limit of normal
12. Subject's urine tested positive at Screening and/or on Study Day -1 for any of the following: opioids, amphetamines, cannabinoids, benzodiazepines, barbiturates, cocaine, cotinine, or alcohol

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

850 Maude Avenue
Mountain View
United States of America

Sponsor information


ChemoCentryx, Inc. (USA)

Sponsor details

850 Maude Avenue
Mountain View
United States of America

Sponsor type




Funder type


Funder name

ChemoCentryx, Inc. (USA)

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes