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Study of Escalating Doses of NRL001 Given in Slow-release Rectal Suppositories of Different Weights

This study has been completed.
Information provided by:
Norgine Identifier:
First received: February 23, 2009
Last updated: December 21, 2009
Last verified: December 2009

Studies investigating single doses of different NRL001 formulations showed formulation-dependent differences in exposure, even though they had similar effects on mean anal resting pressure (MARP). This study is a first step in investigating the hypothesis that a better balance between desired anal effects and undesired systemic effects can be reached with a NRL001-slow release suppository than with previously studied formulations.

To this purpose, single doses of 5 to 15 mg, administered as 1 g and 2 g suppositories, are being investigated with regard to their pharmacokinetics and systemic effects (blood pressure, pulse rate, electrocardiographic heart rate).

Condition Intervention Phase
Drug: NRL001
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomised, Placebo-controlled, Double-blind, Dose Escalation Study in Healthy Volunteers to Evaluate the Safety, Tolerability, and Pharmacokinetics of Single Doses of Rectal Suppositories Containing Between 5 and 15 mg NRL001 or Matching Placebo for Two Different Sized Suppositories (1 g and 2 g).

Further study details as provided by Norgine:

Primary Outcome Measures:
  • Pharmacokinetics of different strengths of NRL001 rectal suppositories [ Time Frame: Up to 36 hours post-dose ]

Secondary Outcome Measures:
  • Dose-related effects on cardiovascular parameters compared with placebo. [ Time Frame: Up to 36 hours post-dose ]
  • To assess the safety and tolerability of NRL001. [ Time Frame: Up to 36 hours post-dose ]

Estimated Enrollment: 48
Study Start Date: February 2009
Primary Completion Date: April 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Low Dose
NRL001 at 5, 7.5, and 10 mg administered in a dose escalating manner with placebo in a random position in the sequence. NRL001 is contained in either a 1 g or a 2 g slow release rectal suppository.
Drug: NRL001
Four single doses of NRL001 or placebo. NRL001 is administered at lower (5, 7.5 and 10 mg) or higher (10, 12.5 and 15 mg) doses in a slow release rectal suppository weighing either 1 g or 2 g.
Experimental: High Dose
NRL001 at 10, 12.5, and 15 mg administered in a dose escalating manner with placebo in a random position in the sequence. NRL001 is contained in either a 1 g or a 2 g slow release rectal suppository.
Drug: NRL001
Four single doses of NRL001 or placebo. NRL001 is administered at lower (5, 7.5 and 10 mg) or higher (10, 12.5 and 15 mg) doses in a slow release rectal suppository weighing either 1 g or 2 g.


Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Healthy adult male or female volunteers (as determined by medical history, physical examination, laboratory test values, vital signs, and electrocardiograms [ECGs] at screening) aged 18-45 years.
  2. Non-smokers from 3 months of receiving first dose and for the duration of the study.
  3. Body Mass Index (BMI) ≥ 18 and ≤ 30 kg/m2.
  4. Able and willing to receive rectal treatments.
  5. Able to voluntarily provide written informed consent to participate in the study.
  6. Must understand the purposes and risks of the study and agree to follow the restrictions and schedule of procedures as defined in the protocol.
  7. Female volunteers must be postmenopausal (for at least one year and confirmed by serum FSH at screening), surgically sterile, practising true sexual abstinence, or use two highly effective methods of contraception as follows throughout the study until after post study physical: contraceptive implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), vasectomised partner or barrier method (condom or occlusive cap) with spermicidal foam/gel/film/cream/suppository.
  8. Hormonal and IUD methods of contraception must be established for a period of 3 months prior to dosing and cannot be changed or altered during the study.
  9. Females of child bearing potential must have a negative pregnancy test at screening (β-HCG) and prior to each dosing.
  10. Sexually active male volunteers must use condoms with their partners throughout the study and for 90 days after completion of the study in addition to their normal mode of contraception.
  11. Male volunteers must not donate sperm during the study and for 90 days after completion of the study.
  12. Must be willing to consent to have data entered into The Over Volunteering Prevention System.
  13. The volunteer's primary care physician must confirm that there is nothing in their medical history that would preclude their enrolment into this clinical study.

Exclusion Criteria:

  1. Positive for HIV, hepatitis B, or hepatitis C as demonstrated by the results of testing at screening.
  2. History or presence of any significant cardiovascular, pulmonary, hepatic, renal, haematological, gastrointestinal (GI), endocrine, immunologic, dermatologic, neurologic or psychiatric disease.
  3. History or presence of aortic stenosis or hypertrophic cardiomyopathy.
  4. History or presence of any ano-rectal conditions, clinically significant latex allergy or clinically significant drug allergy.
  5. Presence of any ECG abnormalities (during rest or during the exercise stress test).
  6. Pregnant or lactating females.
  7. Laboratory values at screening which are >1.5x the upper limit of normal for that parameter or <1.5x the lower limit of normal for that parameter, as applicable, or which are abnormal or deemed to be clinically significant according to Bio-Kinetic Europe Ltds SOPs, unless agreed in advance by the Sponsor's Responsible Medical Officer and the Bio-Kinetic Investigator.
  8. Current or history of drug or alcohol abuse or a positive drugs of abuse test at screening or check in.
  9. Volunteers who, in the opinion of the Investigator, are unsuitable for participation in the study.
  10. Participation in a clinical drug study during the 90 days preceding the initial dose in this study.
  11. Any significant illness during the screening period preceding entry into this study.
  12. Donation of blood or blood products within 90 days prior to study drug administration, or at anytime during the study, except as required by this protocol.
  13. Strenuous exercise during study conduct and one week prior to dosing (with the exception of the exercise stress test).
  14. Consumption of alcoholic beverages within 24 hours prior to each dosing. Abstinence is required during study confinement.
  15. Consumption of xanthine-containing products within 24 hours of each dosing and during study confinement.
  16. Use of any disallowed concomitant medication including over-the-counter items within 14 days prior to study drug administration until the end of the study.
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Please refer to this study by its identifier: NCT00850590

United Kingdom
Bio-Kinetic Europe Limited
Belfast, United Kingdom, BT2 7BA
Sponsors and Collaborators
Study Director: Hans-Jürgen Gruss, MD Norgine
Principal Investigator: David Bell, MRCGP MFPM Biokinetic Europe Ltd
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: VP Clinical Development, Norgine Ltd Identifier: NCT00850590     History of Changes
Other Study ID Numbers: NRL001-02/2008 (SUSD)
Study First Received: February 23, 2009
Last Updated: December 21, 2009 processed this record on May 23, 2017