Overview
Sponsor-declared trial summary
Opioid-induced constipation
To further understand the mechanism of action of naloxegol in healthy volunteers
Key facts
- Sponsor
- UZ Leuven
- Participant type
- Healthy volunteers
- Age range
- 18-64 years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Digestive System Diseases [C06]
- Trial duration
- 28 Oct 2024 → 3 Jul 2025
- Decision date (initial)
- 2024-09-16
- Transition trial
- No
- Low-intervention
- No
- Rare-disease indication
- No
- Vulnerable population
- No
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Efficacy
To further understand the mechanism of action of naloxegol in healthy volunteers
Conditions and MedDRA coding
Opioid-induced constipation
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 7
- 1. Voluntary written informed consent of the participant or their legally authorized representative has been obtained
- 2. Use of highly effective methods of birth control; defined as those that, alone or in combination, result in low failure rate (i.e., less than 1% per year) when used consistently and correctly; such as implants, injectables, combined oral contraceptives, some IUDs, true sexual abstinence (i.e. refraining from heterosexual intercourse during the entire period of risk associated with the Trial treatment(s)) or commitment to a vasectomised partner.
- 3. HV is a man or woman aged 18 to 65 years, inclusive, at screening.
- 4. BMI 18-25
- 5. Normal stool pattern of between 3 defecations per day and 3 per week with a Bristol Stool Form Scale (BSFS) of 1, 2, 6 or 7 in less than 25% of defaecations.
- 6. HV has not used any opioid medication 14 days prior to randomization.
- 7. Medications taken for the treatment of allergies, chronic medical conditions, and migraine headaches can be taken during this study (with the exception of opioids for acute treatment of migraines). HV must be on a stable dose of medication for chronic migraines or preventative therapy for at least 1 month at prescreening. HV on stable doses of antidepressants (i.e., for the 3 months prior to prescreening) will be allowed to participate in the study.
Exclusion criteria 14
- 1. Participant has a history of diverticulitis, intestinal obstruction, stricture, toxic megacolon, GI perforation, gastric banding, bariatric surgery, adhesions, ischemic colitis, or impaired intestinal circulation (eg, aortoiliac disease)
- 10. Participant has an unstable renal, hepatic, metabolic, or hematologic condition
- 11. Smoking on the day of the investigation and the day prior to it.
- 12. Non-removable piercings or metal implants
- 13. Known allergy towards the study medication
- 2. Participant has any of the following surgical history: a. Any abdominal surgery within the 3 months prior to prescreening; b. History of major gastric, hepatic, pancreatic, or intestinal surgery (appendectomy, hemorrhoidectomy, or polypectomy more than 3 months earlier are allowed).
- 3. Participant has asthma
- 4. Participant has a history of a cardiovascular event, including stroke, myocardial infarction, congestive heart failure, or transient ischemic attack within 6 months prior to prescreening
- 5. Any other disorder, which in the Investigator’s opinion might jeopardise the participant’s safety or compliance with the protocol
- 6. Any prior or concomitant treatment(s) that might jeopardise the participant’s safety or that would compromise the integrity of the Trial a. current evidence of laxative abuse or history of drug abuse. b. current (within 14 days of randomization) or expected use of any narcotic or opioid containing agents, docusate, enemas, GI preparations (including antacids containing aluminum or magnesium, antidiarrheal agents, antinausea agents, antispasmodic agents, bismuth, or prokinetic agents) (see 5.3 prohibided concomitant medication). c. Intake of drugs that interfere with the GI motility and fluid balance for 1 month prior to the investigation (see 5.3 prohibided concomitant medication). d. Consumption of grapefruit (juice) or medication that interferes with Naloxegol (CYP3A4 inducers/blockers).
- 7. Female who is pregnant, breast-feeding or intends to become pregnant or is of child-bearing potential and not using an adequate, highly effective contraceptive
- 8. Participation in an interventional Trial with an investigational medicinal product (IMP) or device within 30 days prior to randomisation, or is currently enrolled in an investigational study
- 9. HV has a history of malignancy within 5 years before prescreening (except squamous and basal cell carcinomas and cervical carcinoma in situ).
- 14. Subjects known to be ultrarapid metabolizers of CYP2D6
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 1
- investigation of the effect of the 3 drug-arms (placebo+placebo, naloxegol+codeine, placebo+codeine) on both colonic motility and segmental colorectal volumes at baseline, after an oat porridge meal and after bisacodyl administration
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 2
PRD4962475 · Product
- Active substance
- Codeine Phosphate Hemihydrate
- Pharmaceutical form
- SYRUP
- Route of administration
- ORAL USE
- Max daily dose
- 90 mg milligram(s)
- Max total dose
- 90 mg milligram(s)
- Max treatment duration
- 2 Day(s)
- Authorisation status
- Authorised
- ATC code
- R05DA04 — CODEINE
- Marketing authorisation
- BE033424
- MA holder
- LABORATOIRES BELGES PHARMACOBEL
- MA country
- Belgium
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
SUB126723 · Substance
- Active substance
- Naloxegol
- Pharmaceutical form
- FILM-COATED TABLET
- Route of administration
- ORAL
- Max daily dose
- 25 mg milligram(s)
- Max total dose
- 25 mg milligram(s)
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Authorised
- ATC code
- - — -
- Marketing authorisation
- -
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Placebo 2
Sirupus simplex 30mL followed by 15mL after two hours, at one study visit
N/A · Product
- Other product name
- N/A
- Pharmaceutical form
- N/A
- ATC code
- N/A — N/A
- Marketing authorisation
- N/A
- MA holder
- N/A
- MA country
- Iceland
- Paediatric formulation
- No
Lactose monohydrate 320mg tablet, once orally, for 2 study visits
N/A · Product
- Other product name
- N/A
- Pharmaceutical form
- N/A
- ATC code
- N/A — N/A
- Marketing authorisation
- N/A
- MA holder
- N/A
- MA country
- Iceland
- Paediatric formulation
- No
Auxiliary 1
SUB05846MIG · Substance
- Active substance
- Bisacodyl
- Pharmaceutical form
- SUPPOSITORY
- Route of administration
- RECTAL USE
- Max daily dose
- 10 mg milligram(s)
- Max total dose
- 10 mg milligram(s)
- Max treatment duration
- 3 Day(s)
- Authorisation status
- Authorised
- ATC code
- - — -
- Marketing authorisation
- -
- Paediatric formulation
- No
- Orphan designation
- No
- Modified vs. Marketing Authorisation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
UZ Leuven
- Sponsor organisation
- UZ Leuven
- Address
- Herestraat 49
- City
- Leuven
- Postcode
- 3000
- Country
- Belgium
Scientific contact point
- Organisation
- UZ Leuven
- Contact name
- Jan Tack
Public contact point
- Organisation
- UZ Leuven
- Contact name
- Jan Tack
Locations
1 EU/EEA country · 1 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| Belgium | Ended | 15 | 1 |
| Rest of world | — | 0 | — |
Investigational sites
Country notifications
Trial-start, recruitment-start, end and early-termination notifications submitted per Member State
| Country | Trial start | Trial end | Recruitment start | Recruitment end | Early termination |
|---|---|---|---|---|---|
| Belgium | 2024-10-28 | 2025-07-03 | 2024-10-28 | 2025-05-27 |
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Summary of results Art. 37(4) CTR
| Title | Submission date | Status | Type |
|---|---|---|---|
| Results_MRI study for CTIS SUM-102451
|
2025-10-16T16:28:53 | Submitted | Summary of Results |
Documents 1 file
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Summary of results (for publication) | Results_MRI study for CTIS | 1 |
Application history
1 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2024-06-13 | Belgium | Acceptable 2024-09-16
|
2024-09-16 |