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Evaluation of the effectiveness of intake of proteoglycan-containing salmon nasal cartilage extracts on arthralgia, cartilage metabolism marker and bone metabolism marker of patients with knee joint pain for 12 weeks.

Evaluation of the effectiveness of intake of proteoglycan-containing salmon nasal cartilage extracts on arthralgia, cartilage metabolism marker and bone metabolism marker of patients with knee joint pain for 12 weeks. - Efficacy evaluation of proteoglycan on knee joints pain

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000033138
Enrollment
12
Registered
2018-06-25
Start date
2010-06-28
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy volunteer

Interventions

Proteoglycan capsules are ingested for 12 consecutive weeks at 10mg.

Sponsors

TTC Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Males and females at the ages of 40 to 85 2) Subjects who are classified into 0-III grade on the basis of the Kellgren-Lawrence classification. (Mainly grade 0 to II)

Exclusion criteria

Exclusion criteria: 1) Subjects who are confirmed 30-points by JOA score, the degree of knee pain and walk ability 2) Subjects who are suspected gouty attack with hyperuricemia 3) Subjects who have positive rheumatoid factors on the screening test or may have rheumatic pain 4) Subjects who have performed arthroplasty or need it 5) Subjects who regularly take health food containing proteoglycan or related to bone and joint wellness from two week before the screening test to the end of the study 6) Subjects who regularly take medicine, except in the case of permission to take anti-pain and anti-inflammatory drug by physician 7) Subjects who is taking medicine that affects cartilage or bone metabolism marker such as bisphosphonate, hormone therapy 8) Subjects who have been performed intra-articular hyaluronic acid or steroid drug injection within two week before the screening test 9) Subjects who regularly take medicine 10) Subjects who get an intense exercise to make excessive load on the joints 11) Subjects who have a history of the disorder related to bone and joint such as fracture and sprain within three month before the screening test 12) Subjects who are judged as unsuitable for the study based on the results of lifestyle questionnaire 13) Subjects who are judged unsuitable from clinical examination before ingestion 14) Subjects who need to take warfarin during the study 15) Subjects who have possibility of allergy symptoms onset by the raw material in test diet 16) Subjects who intend to become pregnant or lactating 17) Subjects who intend to participate in study period 18) Subjects who are judged as unsuitable for this study by physician

Design outcomes

Primary

MeasureTime frame
Japanese Knee Osteoarthritis Measure (JKOM), Japanese Orthopaedic Association score (JOA score)

Secondary

MeasureTime frame
Visual Analogue Scale(VAS), C2C, CPII, HA, CTX-II, NTx Hematologic test, Biochemistry test, Urinalysis

Countries

Japan

Contacts

Public ContactTakashi Nakagawa

TTC Co., Ltd Clinical Research Planning Department

t.nakagawa@ttc-tokyo.co.jp03-5459-5329

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026