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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01918098
Other study ID # OXN08-CN-302a
Secondary ID
Status Completed
Phase Phase 3
First received August 5, 2013
Last updated November 10, 2017
Start date September 1, 2013
Est. completion date March 30, 2017

Study information

Verified date November 2017
Source Mundipharma (China) Pharmaceutical Co. Ltd
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To determine the improvement in symptoms of constipation in subjects receiving treatment with oxycodone/naloxone prolonged release tablets (OXN) compared to oxycodone prolonged release tablets (OXY) based on the Bowel Function Index (BFI)


Recruitment information / eligibility

Status Completed
Enrollment 230
Est. completion date March 30, 2017
Est. primary completion date March 30, 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Screening Inclusion criteria:

- Males or females, 18 years of age or older

- Clinical diagnosis of musculo-skeletal pain for 4 weeks or longer with non-malignant pain etiology at Visit 1. Possible etiologies are conditions related to intervertebral disc disease, spondylolisthesis and osteoarthritis; other similar non-malignant diseases are also eligible.

- Patients with non-malignant pain that require around-the-clock opioid therapy (oxycodone equivalent of =10 mg/day and =50 mg/day) who are likely to benefit from WHO step III opioid therapy for the duration of the study

- Patients who have been already treated with NSAIDs at least 2 weeks before enrolment are also eligible, but they should rate their pain (Pain Intensity Scale -"average pain" over the last 24 hours) as =4 on 0-10 scale."

- Subjects are either taking opioid medication or willing to take opioids to treat their pain

- Patients who are willing to use adequate and reliable contraception throughout the study. Highly effective methods of birth control are defined as those which result in a low failure rate (i.e. less than 1% per year) when used consistently and correctly such as sterilization, implants, injectable, combined oral contraceptives, some IUDs (intrauterine Device, hormonal), sexual abstinence or vasectomized partner

- Subjects willing and able to participate in all aspects of the study, including use of oral medication, completion of subjective evaluations, attending scheduled clinic visits, completing telephone contacts, and compliance with protocol requirements are evidenced by providing written informed consent

- Subjects taking pre-study, non-opioid analgesics, and all other concomitant medications, including those medications for the treatment of depression and are considered necessary for the subject's welfare, and are anticipated to remain stable throughout the double-blind period of the study, and are to be continued under the supervision of the investigator, are eligible.

- Patients who have been already treated with NSAIDs at least 2 weeks before enrolment are also eligible, but they should rate their pain (Pain Intensity Scale -"average pain" over the last 24 hours) as =4 on 0-10 scale.

Criteria for entry to the Double-Blind phase:

1. Subjects continue to satisfy screening criteria outlined in the protocol

2. Subject's OXY dose is between 10-50 mg/day

3. Subjects who rate their pain (Pain Intensity Scale -"average pain" over the last 24 hours) as=4 on 0-10 scale with less than or equal to two doses of Morphine Sulfate tablets rescue medication per day for either the last three consecutive days or four of the last seven days

4. Subjects who have constipation induced, or worsened by their opioid study medication, as shown by:

1. The subject's medical need for regular intake of laxatives to have at least 3 bowel evacuations per week, or having less than 3 bowel evacuations per week when not taking a laxative, respectively and

2. The subjects' constipation was considered to be induced, worsened or maintained by their current study opioid medication and

3. BFI value > 30.

5. Subjects demonstrate compliance with laxative use, and completing appropriate and legible daily diaries

6. Subjects taking daily fibre supplementation or bulking agents are eligible if they can be maintained on a stable dose and regimen throughout the study, and in the investigator's opinion are willing and able to maintain adequate hydration.

Screening Exclusion criteria:

1. Females who are pregnant (positive ß-hCG test) or lactating

2. Any history of hypersensitivity or with any contraindication to oxycodone, naloxone, bisacodyl, or related products

3. Subjects currently taking the equivalent of > 50 mg/day Oxycodone PR

4. Evidence of clinically significant cardiovascular, renal, hepatic, gastrointestinal (paralytic ileus), or psychiatric disease, as determined by medical history, clinical laboratory tests, electrocardiogram (ECG) results, and physical examination, that will place the subject at risk upon exposure to the study medication or that could confound the analysis and/or interpretation of the study results

5. Subjects with evidence of impaired liver/kidney function upon entry into the study defined as aspartate aminotransferase (AST; SGOT), alanine aminotransferase (ALT; SGPT), or alkaline phosphatase levels >3 times the upper limit of normal; gamma glutamyltranspeptidase (GGT or GGTP) = 5 times the upper limit of normal; total bilirubin level outside of the reference range; and/or creatinine level outside of the reference range or >2 mg/dl, or in the investigator's opinion, liver and/or kidney impairment to the extent that the subject should not participate in this study

6. Subjects with evidence of significant structural abnormalities of the gastrointestinal tract or any diseases/conditions that affect bowel transit

7. Subjects who have required treatment for the diagnosis of irritable bowel syndrome (IBS)

8. Subjects receiving hypnotics or other central nervous system (CNS) depressants that, in the investigator's opinion, may pose a risk of additional CNS depression with opioids study medication

9. Surgery within 2 months prior to the start of the Screening Period, or planned surgery during the 12-week Double-blind Phase that may have affected GI motility or pain

10. Subjects diagnosed with cancer, not including basal cell carcinoma

11. Subjects with Rheumatoid Arthritis (RA)

12. Subjects receiving opioid substitution therapy for opioid addiction (e.g., methadone or buprenorphine)

13. Subjects with active alcohol or drug abuse and/or history of opioid abuse

14. Subjects who participated in a clinical research study involving a new chemical entity or an experimental drug within 30 days of study entry (defined as the start of the Screening Period)

15. Subjects presently taking, or who had taken naloxone or naltrexone within 30 days of study entry (defined as the start of the Screening Period).

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Oxycodone/naloxone prolonged release tablets


Locations

Country Name City State
China Beijing friendship hospital Beijing
China Beijing Tiantan Hospital Beijing
China Beijing Union hospital Beijing
China Peking Union Medical College Hospital Beijing
China Peking University Third Hospital Beijing
China The first affiliated hospital of Bengbu medical collage Bengbu
China The third Xiangya hospital of central south university Changsha
China The thrid Xiangya Hospital of central south university Changsha
China Xiangya hospital central south university Changsha
China West China Hospital Chengdu
China Daping Hospital Chongqing
China South West hospital Chongqing
China Fuzhou general hospital Fuzhou
China Guangzhou First People's Hospital Guangzhou Guangdong
China The third affiliated hospital Sun yat-sen university Guangzhou
China Guizhou Provincial People's Hospital Guizhou
China The second affiliated hospital of Harbin medical university Harbin
China Shandong Provincial Hospital Jinan
China Second Affiliated Hospital of Shan Tou University Medical College Shan Tou Guangdong
China Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine Shanghai
China Shanghai Changhai Hospital Shanghai
China Shanghai Sixth People's Hospital Shanghai
China Zhongshan Hospital Fudan University Shanghai
China The first affiliated hospital of Shantou university medical college Shantou
China The general hospital of Shenyang military Shenyang
China Hebei General Hospital Shijiazhuang Hebei
China The central hospital of Wuhan Wuhan
China Tongji Hospital Wuhan
China Union Hospital Tongji medical college Wuhan
China The affiliated hospital of Xuzhou medical university Xuzhou
China Second affiliated hospital of Zhejiang university Zhejiang

Sponsors (1)

Lead Sponsor Collaborator
Mundipharma (China) Pharmaceutical Co. Ltd

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Bowel function index(BFI) 12 Weeks 12 weeks
Secondary Modified BPI-SF-Average Pain over the last 24 hours 12 weeks