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CompletedNCT00363948Updated Jun 13, 2012

Controlled Study of MK-0431/ONO-5435 in Patients With Type 2 Diabetes Mellitus

A Phase 3 interventional study of Placebo and Sitagliptin phosphate in Type 2 Diabetes Mellitus, sponsored by Ono Pharmaceutical Co. Ltd. Completed at 8 sites in Japan. Open to participants aged 20 Years to 74 Years. Per ClinicalTrials.gov, last updated 2012-06-13.

Sponsored by Ono Pharmaceutical Co. Ltd · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
188
Allocation
Randomized
Ages
20 Years to 74 Years
Sex
All
01

Study summary

The purpose of this study is to determine the safety and efficacy of MK-0431/ONO-5435 in patients with Type 2 diabetes mellitus who have inadequate glycemic control on diet/exercise therapy and metformin as monotherapy

02

Conditions studied

  • Type 2 Diabetes Mellitus

Keywords

  • MK-0431
  • ONO-5435
  • Type 2 diabetes mellitus
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 188 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Ono Pharmaceutical Co. Ltd is the lead sponsor of 66 studies on the registry; 3 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 74 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with type 2 diabetes mellitus on diet/exercise therapy and metformin as monotherapy

Exclusion criteria

Exclusion Criteria:

  • Patients with type 1 diabetes mellitus
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
188 participants (actual)

Study arms

  • Placebo comparator
    P

    Drug: Placebo

  • Experimental
    E

    Drug: Sitagliptin phosphate

Interventions

  • DrugPlacebo

    Double-blind period (12 wk); Placebo QD The double-blind period will be followed by a 40 wk open-label extension period where MK-0431/ONO-5435 could be titrated from 50 mg QD to 100 mg QD

  • DrugSitagliptin phosphate

    Double-blind period (12 wk); 50 mg QD The double-blind period will be followed by a 40 wk open-label extension period where MK-0431/ONO-5435 could be titrated from 50 mg QD to 100 mg QD

06

What researchers measure

Primary outcomes

  1. HbA1c

    Time frame: 12 weeks

  2. safety

    Time frame: 52 weeks

  3. tolerability

    Time frame: 52 weeks

Secondary outcomes

  1. Plasma glucose

    Time frame: 12 weeks

07

Study locations

8 sites
  • Chubu Region
    Chubu, Japan
  • Chugoku Region
    Chugoku, Japan
  • Hokkaido Region
    Hokkaido, Japan
  • Hokuriku Region
    Hokuriku, Japan
  • Kanto Region
    Kanto, Japan
  • Kinki Region
    Kinki, Japan
  • Kyushu Region
    Kyushu, Japan
  • Tohoku Region
    Tohoku, Japan
08

References and documents

Publications

  • Kadowaki T, Tajima N, Odawara M, Nishii M, Taniguchi T, Ferreira JC. Addition of sitagliptin to ongoing metformin monotherapy improves glycemic control in Japanese patients with type 2 diabetes over 52 weeks. J Diabetes Investig. 2013 Mar 18;4(2):174-81. doi: 10.1111/jdi.12001. Epub 2012 Oct 22. PubMed 24843649 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 13, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00363948
Lead sponsor
Ono Pharmaceutical Co. Ltd
Responsible party
Sponsor
First posted
Aug 15, 2006
Start date
Aug 2006
Primary completion
Feb 2008
Last update
Jun 13, 2012

Study contacts

Mikio Nishii
study director · Ono Pharmaceutical Co. Ltd
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2012. You cannot join it, but the record below documents what was studied.

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