ClinicalTrials.gg
CompletedNCT04640974Updated Dec 16, 2024Results posted

Study of Cingal® for Symptomatic Relief of Osteoarthritis of Ankle Joint

An interventional study of Cingal in Osteoarthritis, Ankle, sponsored by Anika Therapeutics, Inc.. Completed at 4 sites in 2 countries. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-12-16.

Sponsored by Anika Therapeutics, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 71 studies in Osteoarthritis with a site in Poland — 11 open to participants now, 12 under way, none of them phase 3. Osteoarthritis · Poland.

Enrollment
59th of 64
25 · median 121
Started
2021
with 7 others
No phase
24 of 71
5 open now
Registered
41st of 71
by date
Lead sponsor
6 of 71
Anika Therapeutics, Inc.

Among the 71 studies in Osteoarthritis with a site in Poland, this one is the 59th largest by enrollment of the 64 interventional ones, is one of 8 that started in 2021, is one of 24 with no phase, and was the 41st registered.

By phase

71 studies; the count open now beside each. This study's row is marked.

No phasethis study24 · 5 open
Phase 320 · 0 open
Phase 215 · 3 open
Observational7 · 3 open
Phase 1/23 · 0 open
Phase 42 · 0 open

By the year they started

First in 2003; this study’s year is marked. 8 started in 2021.

Size and results

Median enrollment 121 across the 64 interventional studies, 130 across the 7 observational. Of the 52 that completed or were terminated, 25 (48%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 71 studies in Osteoarthritis with a site in Poland, or all of them as a file.
02

Study summary

This Trial will obtain clinical data to support an expanded indication for a single injection of Cingal® used for the symptomatic relief of osteoarthritis in the ankle joint.

Read the detailed description

Single injection into the ankle joint of a 4 ml unit dose of Cingal containing 88 mg (22 mg/ml) of cross-linked sodium hyaluronate and 18 mg (4.5 mg/ml) of triamcinolone hexacetonide (TH).

03

Conditions studied

  • Osteoarthritis, Ankle

Browse trials for

Keywords

  • Sodium Hyaluronate
  • Triamcinolone Hexacetonide
04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Screening Inclusion Criteria:

  1. Age 18 years or older
  2. (BMI) ≤ 35 kg/m2
  3. Diagnosis of symptomatic osteoarthritic joint in the index ankle (Kellgren-Lawrence grade I to III) to be treated with Cingal injection.
  4. Failed conservative treatment for joint osteoarthritis.
  5. NRS pain on walking ≥4 and ≤9 in the index ankle.
  6. Subject must be willing to abstain from other treatments of the index ankle for the duration of the study.
  7. Subject is willing to discontinue all analgesics including NSAIDs, except acetaminophen/paracetamol, at least seven days before the treatment injection and through the completion of the study.
  8. Subject is willing to use only acetaminophen/paracetamol (up to a maximum of 4.0 grams per day per the package insert) for the treatment of joint pain for the duration of the study. At least forty-eight hours prior to the Baseline Visit and each follow-up visit, the subject is willing to discontinue use of acetaminophen/paracetamol.
  9. Subject is willing to maintain a stable dose of oral glucosamine and/or chondroitin sulfate products throughout the study, if taken prior to signing the form (ICF).
  10. Able and willing to provide signed informed consent

Baseline Inclusion Criteria

  1. NRS pain on walking ≥4 and ≤ 9 in index ankle

Screening Exclusion Criteria:

  1. History of to any of the ingredients in the hyaluronan or
  2. Infection or skin disease in the area of the injection site or ankle joint
  3. NRS pain on walking > 3 in the contralateral ankle
  4. NRS pain on walking > 3 in the ipsilateral knee or hip
  5. Subject received an injection of Hyaluronic Acid (HA) and/or steroid in either ankle within 6 months of signing the informed consent form (ICF). A subject will be excluded if they are planning to receive an HA or steroid injection (other than the study injection) in either ankle during the course of this study.
  6. Known inflammatory or disorders (including rheumatoid arthritis, gout), or other pre-existing medical conditions that, in the opinion of the investigator, could impact treatment of the index ankle or affect the ability of the subject to accurately complete the study questionnaires and comply with the study requirements.
  7. Subject is taking medications at the time of signing the ICF which could interfere with the treatment procedure, healing and/or assessments. This includes but is not limited to oral or injectable anticoagulant treatments, anti-aggregant treatment, chronic opioid analgesics. Low dose aspirin used for cardiovascular protection is allowed if a stable regimen is maintained for the duration of the study.
  8. Subjects who had an oral, intramuscular, intravenous, rectal suppository or topical (excluded in index ankle only) corticosteroid prior 30 days of signing the ICF are excluded. Topical corticosteroid use at any site other than the index ankle is allowed.
  9. Significant trauma to the index ankle within 26 weeks of screening
  10. Chronic use of narcotics or cannabis.
  11. Ligament instability or tear in index ankle.
  12. Chronic impingement in the index ankle requiring surgical treatment
  13. Diagnosis of fibromyalgia
  14. Diagnosis of osteonecrosis in index ankle
  15. Subject has significant varus or valgus deformity greater than 10 degrees in either knee.
  16. Subject requires consistent use of an assistive device (e.g. wheelchair, walker, etc.) Occasional use of a cane is acceptable.
  17. Uncontrolled diabetes with of >7%.
  18. Subject is a woman who is pregnant or breastfeeding at the Screening Visit or a woman of child bearing potential who refuses to use effective during the course of the study.
  19. Subject is receiving or in litigation for worker's compensation.
  20. Otherwise determined by the investigator to be medically unsuitable for participation in this study.

Baseline Exclusion Criteria

  1. Subject has a decrease of ≥ 2 in the NRS pain on walking from Screening to Baseline in the index ankle.
  2. Subject has a to continue with the study treatment injection based on the visual appearance of the synovial fluid aspirate.
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
25 participants (actual)

Study arms

  • Experimental
    Cingal

    Single injection of Cingal into the ankle joint of subjects diagnosed with osteoarthritis of the ankle.

    Device: Cingal

Interventions

  • DeviceCingal

    Single injection into the ankle joint of a 4 ml unit dose of Cingal containing 88 mg (22 mg/ml) of cross-linked sodium hyaluronate and 18 mg (4.5 mg/ml) of triamcinolone hexacetonide (TH).

06

What researchers measure

Primary outcomes

  1. Numerical Rating Scale (NRS) Pain on Walking

    Reduction of Index Ankle Numerical Rating Scale (NRS) Pain on Walking from baseline to 6 months post injection was obtained from participant responses. The NRS Pain Score ranged from 0 = No Pain to 10 = Worst Pain Level. A negative value for the change in Pain Score indicates less pain post-treatment. A larger negative value indicates a higher level of improvement, and a better outcome.

    Time frame: 6 months

Secondary outcomes

  1. American Orthopaedic Foot and Ankle Society (AOFAS) Score

    The change from baseline to 6 months in the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Rating System, a standardized evaluation of the clinical status of the ankle-hindfoot. It incorporates both subjective and objective information in three parts to evaluate Pain, Function and Alignment. Patients report their pain (40 points), and function (50 points), and an evaluator assesses alignment (10 points). A total score is calculated by adding the three scores for a final range from 0 (worst clinical status) to 100 points (best clinical status). A positive increase in value for the change in AOFAS score indicates improvement. A larger positive value indicates a higher level of improvement, and a better outcome.

    Time frame: 6 Months

  2. Patient Global Assessment (PGA) Score

    The change from baseline to 6 months in ankle pain post-treatment as measured by the Patient Global Assessment (PGA) Score. PGA Score records participant responses to their assessment of how much their STUDY (treated) ankle is bothering them today . The PGA Score is a validated 11-point Likert scale ranged from 0 = No Pain to 10 = Worst Pain. A negative value for the change from baseline indicates improvement in PGA Score. A larger negative value indicates less pain, and a better clinical outcome.

    Time frame: 6 Months

  3. The Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. A Calculated Percentage (%) of Participants Responding to Treatment.

    The post-treatment responder rate is determined through a calculation defined by the Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. The OMERACT-OARSI Responder Index reports the percentage of subjects that met the criteria to be a good responder to treatment. The criteria for response are (1) improvement in pain or physical function \>50% and an absolute change \>20 mm; or (2) improvement of \>20% with an absolute change \>10 mm in at least of the following three categories: pain, physical function, and patient's global assessment. A higher percentage of subjects responding indicates a better outcome.

    Time frame: 6 Months

  4. Usage of Rescue Medication (Acetaminophen/Paracetamol). Number of Participants NOT Using Rescue Medication.

    The usage of Rescue Medication (RM) as based on the number of participants at 6 Months post treatment that were NOT using acetominophen/paracetamol RM for pain or discomfort. A larger percentage of participants that were NOT using RM may correlate to a better clinical outcome in terms of pain.

    Time frame: 6 Months

07

Results

Posted Mar 7, 2024
Limitations and caveats
There were no limitations or caveats associated with the conduct of this trial.

Participant flow

Participant flow — Overall Study
MilestoneCingal
Started25
Completed25
Not completed0

Outcome measures

PrimaryNumerical Rating Scale (NRS) Pain on Walking

Reduction of Index Ankle Numerical Rating Scale (NRS) Pain on Walking from baseline to 6 months post injection was obtained from participant responses. The NRS Pain Score ranged from 0 = No Pain to 10 = Worst Pain Level. A negative value for the change in Pain Score indicates less pain post-treatment. A larger negative value indicates a higher level of improvement, and a better outcome.

Time frame:
6 months
Reported as:
Mean · units on a scale
Numerical Rating Scale (NRS) Pain on Walking
units on a scaleCingal
Numerical Rating Scale (NRS) Pain on Walking-3.84 ± 2.12
Statistical analysis
  • Cingal · ANOVA · p = <0.0001 (P-Value was calculated)
SecondaryAmerican Orthopaedic Foot and Ankle Society (AOFAS) Score

The change from baseline to 6 months in the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Rating System, a standardized evaluation of the clinical status of the ankle-hindfoot. It incorporates both subjective and objective information in three parts to evaluate Pain, Function and Alignment. Patients report their pain (40 points), and function (50 points), and an evaluator assesses alignment (10 points). A total score is calculated by adding the three scores for a final range from 0 (worst clinical status) to 100 points (best clinical status). A positive increase in value for the change in AOFAS score indicates improvement. A larger positive value indicates a higher level of improvement, and a better outcome.

Time frame:
6 Months
Reported as:
Mean · units on a scale
American Orthopaedic Foot and Ankle Society (AOFAS) Score
units on a scaleCingal
American Orthopaedic Foot and Ankle Society (AOFAS) Score15.88 ± 8.52
Statistical analysis
  • Cingal · ANOVA · p = <0.0001 (P-Value was calculated)
SecondaryPatient Global Assessment (PGA) Score

The change from baseline to 6 months in ankle pain post-treatment as measured by the Patient Global Assessment (PGA) Score. PGA Score records participant responses to their assessment of how much their STUDY (treated) ankle is bothering them today . The PGA Score is a validated 11-point Likert scale ranged from 0 = No Pain to 10 = Worst Pain. A negative value for the change from baseline indicates improvement in PGA Score. A larger negative value indicates less pain, and a better clinical outcome.

Time frame:
6 Months
Reported as:
Mean · score on a scale
Patient Global Assessment (PGA) Score
score on a scaleCingal
Patient Global Assessment (PGA) Score-3.76 ± 2.01
Statistical analysis
  • Cingal · ANOVA · p = <0.0001 (P-Value was calculated)
SecondaryThe Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. A Calculated Percentage (%) of Participants Responding to Treatment.

The post-treatment responder rate is determined through a calculation defined by the Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. The OMERACT-OARSI Responder Index reports the percentage of subjects that met the criteria to be a good responder to treatment. The criteria for response are (1) improvement in pain or physical function \>50% and an absolute change \>20 mm; or (2) improvement of \>20% with an absolute change \>10 mm in at least of the following three categories: pain, physical function, and patient's global assessment. A higher percentage of subjects responding indicates a better outcome.

Time frame:
6 Months
Reported as:
Count of participants · Participants
The Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. A Calculated Percentage (%) of Participants Responding to Treatment.
ParticipantsCingal
The Outcomes Measures for Rheumatic Arthritis Clinical Trials-Osteoarthritis Research Society International (OMERACT-OARSI) Responder Index. A Calculated Percentage (%) of Participants Responding to Treatment.23
SecondaryUsage of Rescue Medication (Acetaminophen/Paracetamol). Number of Participants NOT Using Rescue Medication.

The usage of Rescue Medication (RM) as based on the number of participants at 6 Months post treatment that were NOT using acetominophen/paracetamol RM for pain or discomfort. A larger percentage of participants that were NOT using RM may correlate to a better clinical outcome in terms of pain.

Time frame:
6 Months
Reported as:
Count of participants · Participants
Usage of Rescue Medication (Acetaminophen/Paracetamol). Number of Participants NOT Using Rescue Medication.
ParticipantsCingal
Usage of Rescue Medication (Acetaminophen/Paracetamol). Number of Participants NOT Using Rescue Medication.23

Adverse events

Collected over Adverse Events were collected from the time of the Baseline Study Visit until Study Completion at 26 Weeks.. Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cingal0/25 (0%)0/25 (0%)4/25 (16%)
Most frequent other events
Most frequent other events
EventCingal
SARS-CoV-2 test positiveInvestigations2/25
Urinary Tract InfectionInfections and infestations1/25
HypertensionVascular disorders1/25

Baseline characteristics

Age, Continuous
Age, Continuous(years)Cingal
Mean52.12 ± 12.02
Sex: Female, Male
Sex: Female, Male(Participants)Cingal
Female15
Male10
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Cingal
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White24
More than one race1
Unknown or Not Reported0
Index Ankle
Index Ankle(Participants)Cingal
Right16
Left9
08

Study locations

4 sites
  • Krajská zdravotní, a.s. - Masarykova nemocnice Ústí nad Labem, o.z.
    Ústí Nad Labem, 401 13, Czechia
  • NZOZ MEDI-SPATZ M.Spatz
    Gliwice, 44-100, Poland
  • Przychodnia Rodzinna na Sadowej
    Toruń, 87-100, Poland
  • SPORTO sp. z o.o
    Łódź, 90-038, Poland
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2021 to primary completion in Sep 2021, 8 months.

Results were first posted in Mar 2024, 2 years 5 months after primary completion.

Of 135 industry-sponsored interventional studies with no phase under Osteoarthritis, half reached primary completion within 38 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 81. This study's 8 months is below that.

Counting every sponsor, half of 713 studies reached it within 29 months; a quarter within 11 and three quarters within 58.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 19, 2020
First posted
Nov 23, 2020
StartActual
Jan 14, 2021
Primary completionActual
Sep 24, 2021
CompletionActual
Sep 24, 2021
Results first posted
Mar 7, 2024
Last update
Dec 16, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 16, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04640974
Lead sponsor
Anika Therapeutics, Inc.
Responsible party
Sponsor
First posted
Nov 23, 2020
Start date
Jan 14, 2021
Primary completion
Sep 24, 2021
Completion
Sep 24, 2021
Results posted
Mar 7, 2024
Last update
Dec 16, 2024

Study contacts

Kara Mezger
study director · Anika Therapeutics

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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