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Chronic ConstipationPhase 2NCT02425722

A Study to Evaluate Dose Responses of Efficacy and Safety of ASP0456 in Patient With Chronic Constipation

A Phase 2 study testing ASP0456 in people with Chronic Constipation, run by Astellas Pharma Inc at 50 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this study is to investigate dose-responses of efficacy and safety of ASP0456 in patients with chronic constipation (diagnosed by Rome III criteria of functional constipation (FC), not including constipation due to organic diseases) compared to placebo and to find the appropriate dose for P3 study. Read more about this study

Who is it for?
Ages 20 to 79 years
Conditions the study is for
Chronic Constipation
What is being tested?
ASP0456
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
383 participants
Where
50 sitesJapan
Study dates
13 Apr 2015to 31 Oct 2015
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 79 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient who had SBM* (Spontaneous bowel movement) less than 3 times per week, more than six months prior to the provisional registration
  • *Defecation without procedure of laxative, suppository, enema, or stool extraction on the day or preceding day of the defecation
  • Patient who was affected with one or more following symptoms before more than six months of provisional registration:
  • Straining during at least 25% of defecations
  • Lumpy or hard stools in at least 25% of defecations
  • Sensation of incomplete evacuation for at least 25% of defecations
  • Loose stools are rarely present without the use of laxatives more than six months prior to the provisional registration.
  • Patients who had pancolonoscopy or contrast enema (or sigmoidoscopy) after the onset of chronic constipation symptom and had no organic changes

Who cannot join

  • Patient who has met IBS-C diagnostic criteria from Rome III more than six months prior to provisional registration. Meaning that patient who had recurrent abdominal pain or discomfort at least 3 days/month in last 3 months associated with two or more of the following, and patient who was affected with following IBS symptoms more than six months prior to the provisional registration:
  • Improvement with defecation
  • Onset associated with a change in frequency of stool
  • Onset associated with a change in form (appearance) of stool
  • Patient with history of surgical resection of stomach, gallbladder, small intestine, or large intestine (excluding resection of appendicitis and benign polyp)
  • Patient with history or current evidence of inflammatory bowel disease (Crohn's disease or ulcerative colitis)
Show all 22Show fewer
  • Patient with history or current evidence of ischemic colitis
  • Patient currently affected by infectious enteritis
  • Patient currently affected by hyperthyroidism or hypothyroidism
  • Patient with apparent mechanical obstruction (i.e. patient with ileus caused by hernia)
  • Patient with mega colon or mega rectum
  • Patient currently affected by constipation due to anorectal dysfunction
  • Patient currently affected by drug induced constipation.
  • Patient with constipation due to other organic disease
  • Patient currently affected by active peptic ulcer
  • In the case of a female, the one currently affected by endometriosis or uterine adenomyosis
  • Patient with high depression or anxiety considered to influence drug evaluation
  • Patient with history of abuse of drug or alcohol within a year before consent acquisition, or with current abuse
  • Patient who used or underwent or will use or undergo drug/therapy/test prohibited to combine 3 days before the start of bowel habit observation period (Day -17) or thereafter (however, patient who used or underwent restricted drug/therapy according to Protocol may be enrolled provisionally)
  • Patient with history or current evidence of malignant tumor
  • Patient currently affected by serious cardiovascular disease, respiratory disease, kidney disease, hepatic disease, gastrointestinal disease (excluding CC), hemorrhagic disease, or neural/mental disease
  • Patient with history of drug allergy

Trial locations and contacts

50 sites in 1 country.

50 sites in 1 country

Japan50 sites
  • Site: 35

    Aichi

  • Site: 36

    Aichi

  • Site: 27

    Chiba

  • Site: 28

    Chiba

  • Site: 29

    Chiba

  • Site: 30

    Chiba

  • Site: 48

    Fukuoka

  • Site: 49

    Fukuoka

  • Site: 50

    Fukuoka

  • Site: 1

    Hokkaido

  • Site: 2

    Hokkaido

  • Site: 45

    Hyōgo

  • Site: 46

    Hyōgo

  • Site: 47

    Hyōgo

  • Site: 22

    Kanagawa

  • Site: 23

    Kanagawa

  • Site: 24

    Kanagawa

  • Site: 25

    Kanagawa

  • Site: 26

    Kanagawa

  • Site: 44

    Kyoto

  • Site: 37

    Osaka

  • Site: 38

    Osaka

  • Site: 39

    Osaka

  • Site: 40

    Osaka

  • Site: 41

    Osaka

  • Site: 42

    Osaka

  • Site: 43

    Osaka

  • Site: 31

    Saitama

  • Site: 32

    Saitama

  • Site: 33

    Saitama

  • Site: 34

    Saitama

  • Site: 10

    Tokyo

  • Site: 11

    Tokyo

  • Site: 12

    Tokyo

  • Site: 13

    Tokyo

  • Site: 14

    Tokyo

  • Site: 15

    Tokyo

  • Site: 16

    Tokyo

  • Site: 17

    Tokyo

  • Site: 18

    Tokyo

  • Site: 19

    Tokyo

  • Site: 20

    Tokyo

  • Site: 21

    Tokyo

  • Site: 3

    Tokyo

  • Site: 4

    Tokyo

  • Site: 5

    Tokyo

  • Site: 6

    Tokyo

  • Site: 7

    Tokyo

  • Site: 8

    Tokyo

  • Site: 9

    Tokyo

Other trials in Japan

About this study

Official title: Phase II Study of ASP0456 - A Double-blind, Placebo-controlled, Parallel-group, Comparative Study in Patients With Chronic Constipation (Not Including Constipation Due to Organic Diseases)

The objective of this study is to investigate dose-responses of efficacy and safety of ASP0456 in patients with chronic constipation (diagnosed by Rome III criteria of functional constipation (FC), not including constipation due to organic diseases) compared to placebo and to find the appropriate dose for P3 study.

Read the detailed description

To determine optimum dose of ASP0456 for the patients with chronic constipation (not including constipation due to organic diseases) in Japan based on its efficacy and safety, multicentered, placebo-controlled, double-blind, parallel group comparative study will be conducted.

After two-week observation period, the patient who meets the primary registration criteria will be randomized to the one from five groups and will start treatment period. The patients will take once daily orally before the breakfast for two weeks.

Being tested
ASP0456, Placebo
Keywords
linaclotide, ASP0456, chronic constipation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ASP0456Drug

    Also called Linaclotide

    oral

  • PlaceboDrug

    oral

Study groups in NCT02425722
Study groupRoleWhat they receive
ASP0456 0.0625mgExperimentaloral
Receives: Drug: ASP0456
ASP0456 0.125mgExperimentaloral
Receives: Drug: ASP0456
ASP0456 0.25mgExperimentaloral
Receives: Drug: ASP0456
ASP0456 0.5mgExperimentaloral
Receives: Drug: ASP0456
Placebo groupPlacebo comparatororal
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in weekly average of SBM frequency

    SBM: Spontaneous Bowel Movement. SBM means the defecation without procedure of laxative, suppository, enema, or stool extraction on the day or preceding day of the defecation. SBM frequency is calculated as follows: (the week total number of SBM )/ (the total number of days on which the frequency of SBM is evaluable) x7

    Measured: From baseline to week 1

Secondary outcomes (19)
  1. Weekly responder rate for SBM

    The weekly average value of SBM frequency is more than 3 and over 1 more than the weekly mean value of SBM frequency in the bowel habit observation period

    Measured: up to 2 weeks

  2. Weekly responder rate for CSBM

    The weekly average value of CSBM frequency is more than 3 and over 1 more than the weekly mean value of CSBM frequency in the bowel habit observation period

    Measured: up to 2 weeks

  3. Percentage of subjects with SBM within 24 hours after the start of initial treatment

    Measured: up to 24 hours

  4. Change in weekly average of CSBM frequency

    Measured: From baseline to week 1

  5. Proportion of subjects with CSBM within 24 hours after the start of initial treatment

    Measured: up to 24 hours

  6. Weekly responder rate of the global assessment of relief of chronic constipation.

    The weekly responder of the evaluation items shall be the subject satisfying the following at the time of evaluation in each week: Score of Global assessment of relief of chronic constipation symptoms (7 scores: 1-7) is 1 or 2

    Measured: up to 2 weeks

  7. Weekly responder rate of the abdominal bowel habits improvement in chronic constipation.

    Score of abdominal bowel habits improvement effect (7 scores: 1-7) is 1 or 2

    Measured: up to 2 weeks

  8. Weekly responder rate of abdominal symptom relief of chronic constipation.

    Score of abdominal symptom improvement effect (7 scores: 1-7) is 1 or 2

    Measured: up to 2 weeks

  9. Score of the global assessment of relief of chronic constipation

    Scores will be measured using a seven-point ordinal score

    Measured: up to 2 weeks

  10. Changes in IBS-QOL-J scores (entire scores or scores on the sub-scales)

    IBS-QOL-J: Irritable bowel syndrome quality of life Japanese version

    Measured: Week 0, and 2

  11. Changes in weekly average of SBM frequency

    SBM: Spontaneous Bowel Movement

    Measured: From baseline to every week until 2 weeks

  12. Changes in weekly average of CSBM frequency

    CSBM: Complete Spontaneous Bowel Movement

    Measured: From baseline to every week until 2 weeks

  13. Changes in weekly average of stool form

    Stool form will be measured using seven-point Bristol Stool Form Scale

    Measured: From baseline to every week until 2 weeks

  14. Changes in weekly average of abdominal bloating severity scores

    Abdominal bloating severity will be measured using a five-point ordinal score

    Measured: From baseline to every week until 2 weeks

  15. Changes in weekly average of abdominal pain/discomfort severity scores

    Abdominal pain/discomfort severity will be measured using a five-point ordinal score

    Measured: From baseline to every week until 2 weeks

  16. Changes in weekly average of straining severity scores

    Straining severity will be measured using a five-point ordinal score

    Measured: From baseline to every week until 2 weeks

  17. Score of the abdominal bowel habits improvement in chronic constipation

    Scores will be measured using a seven-point ordinal score

    Measured: up to 2 weeks

  18. Score of the abdominal symptom relief of chronic constipation

    Scores will be measured using a seven-point ordinal score

    Measured: up to 2 weeks

  19. Safety assessed by development of incidence of adverse events, vital signs, clinical laboratory tests and body weight

    Measured: up to 2 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Apr 2015 (estimated)
  2. Study start13 Apr 2015
  3. Primary completion31 Oct 2015
  4. Study completion31 Oct 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
383 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02425722
Sponsor's protocol ID
0456-CL-1021
Status last verified
Oct 2024
First submitted
7 Apr 2015
Last updated
18 Oct 2024
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as products terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

Publications

  • Fukudo S, Miwa H, Nakajima A, Kinoshita Y, Kosako M, Nakagawa A, Akiho H, Kuroishi K, Johnston JM, Currie M, Ohkusa T. Dose-finding study of linaclotide in Japanese patients with chronic constipation: A phase II randomized, double-blind, and placebo-controlled study. Neurogastroenterol Motil. 2018 Dec;30(12):e13442. doi: 10.1111/nmo.13442. Epub 2018 Aug 7.

    PubMed 30084233

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ASP0456 in people with Chronic Constipation, run by Astellas Pharma Inc at 50 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 50 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in weekly average of SBM frequency (time frame: From baseline to week 1). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02425722, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Oct 2024.

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