ClinicalTrials.gg
CompletedNCT04187183PRP019Updated Jan 3, 2025

Use of Fresh Platelet Rich Plasma With Concentrated Leukocytes or Fresh Platelet Rich Plasma Without Concentrated Leukocytes in the Treatment of Knee Cartilage Degeneration: a Randomized Controlled Trial

An interventional study of Fresh Platelet Rich Plasma with leukocyte and Fresh Platelet Rich Plasma without leukocyte in Osteoarthritis, Knee, sponsored by Istituto Ortopedico Rizzoli. Completed at 1 site in Italy. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-01-03.

Sponsored by Istituto Ortopedico Rizzoli · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
132
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The aim of the study is to compare the triple infiltration of Fresh Platelet Rich Plasma with concentrated Leukocytes against triple infiltration of Fresh Platelet Rich Plasma Without Concentrated Leukocytes in the treatment of Knee Cartilage Degeneration in a Double Blind Randomized Controlled Trial

Read the detailed description

Platelet Rich Plasma has a consolidated use in the field of orthopedic surgery to reduce inflammation, promoting bone regeneration and healing of surgical wounds.

Some clinical studies demonstrated the utility of the intra-articular infiltration of Platelet Rich Plasma in the treatment of knee articular cartilage lesions, becoming a common conservative strategies in the management of these diseases.

Actually, there are some different kinds of PRP formulations, in particular, the scientific debate is focusing on the role of Leukocytes and if it is better using fresh or frozen PRP.

At the moment don't exist randomized controlled clinical studies comparing fresh PRP rich in Leukocyte against PRP poor in Leukocyte in the treatment of knee cartilage lesions.

The study has two groups of patients, the first will undergo to three infiltrations of Fresh Platelet Rich Plasma With Concentrated Leukocytes and the second will undergo to three infiltrations of Fresh Platelet Rich Plasma Without Concentrated Leukocytes, each infiltrations will be done weekly.

02

Conditions studied

  • Osteoarthritis, Knee
03

In context

Osteoarthritis, Knee

3,391 studies on the registry are indexed under Osteoarthritis, Knee; 628 are open to participants now.

This study's enrollment of 132 is above the median of 69 across 2,808 interventional studies indexed under Osteoarthritis, Knee.

Browse Osteoarthritis, Knee studies →

Lead sponsor

Istituto Ortopedico Rizzoli is the lead sponsor of 304 studies on the registry; 104 are open to participants now.

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

04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients with degenerative pathology of the knee cartilage with:

  1. Age between 18 and 75 years;
  2. Unilateral involvement;
  3. Signs and symptoms of degenerative pathology of the cartilage of the knee;
  4. Radiographic or MRI signs of degenerative pathology of the cartilage of the knee (Kellgren-Lawrence 1-4 degrees);
  5. Hemoglobin> 11 g / dl; Platelet count> 150,000 plt / mm3 (recently performed blood count);
  6. No clinically significant electrocardiographic alteration (recently performed ECG).
  7. Patients' ability and consent to actively participate in clinical follow-up;
  8. Signature of informed consent.

Exclusion criteria

Exclusion Criteria:

  1. Patients undergone to intra-articular infiltration of another substance in the previous 6 months;
  2. Patients undergone knee surgery in the previous 12 months;
  3. Patients with malignant neoplasms;
  4. Patients suffering from rheumatic diseases;
  5. Patients suffering from diabetes;
  6. Patients with hematologic diseases (coagulopathies);
  7. Patients on anti-anticoagulant therapy;
  8. Patients suffering from thyroid metabolic disorders;
  9. Patients abusing alcoholic beverages, drugs or drugs;
  10. Body Mass Index> 35;
  11. Patients who have taken NSAIDs within 3 days before taking blood;
  12. Patients with cardiovascular diseases for which the 150 ml blood test would be contraindicated;
  13. Patients with a recently performed blood count with Hb values \<11 g / dl and Platelets \<150,000 plt / mm3.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
132 participants (actual)

Study arms

  • Experimental
    Fresh PRP with concentrate Leukocyte

    Three infiltrations of fresh Platelet Rich Plasma with concentrated Leukocytes 1 infiltration weekly, for 3 weeks.

    Other: Fresh Platelet Rich Plasma with leukocyte

  • Active comparator
    Fresh PRP without concentrated Leukocyte

    Three infiltrations of fresh Platelet Rich Plasma without concentrated Leukocyte. 1 infiltration weekly, for 3 weeks.

    Other: Fresh Platelet Rich Plasma without leukocyte

Interventions

  • OtherFresh Platelet Rich Plasma with leukocyte

    autologous Platelet Rich Plasma with leukocyte will be infiltrate in the knee joint

  • OtherFresh Platelet Rich Plasma without leukocyte

    autologous Platelet Rich Plasma without leukocyte will be infiltrate in the knee joint

06

What researchers measure

Primary outcomes

  1. IKDC-subjective score (International Knee Documentation Committee)

    It is a specific subjective rating scale for te knee. Iti s one of the most reliable tools for assessing knee diseases. The survey examines three categories: symptoms, sport activity, knee function.

    Time frame: 12 month

Secondary outcomes

  1. KOOS score (Knee Injury and Osteoarthritis Outcome Score)

    KOOS consists of 5 subscales; Pain, other Symptoms, Function in daily living (ADL), Function in sport and recreation (Sport/Rec) and knee related Quality of life (QOL). The previous week is the time period considered when answering the questions. Standardized answer options are given (5 Likert boxes) and each question is assigned a score from 0 to 4. A normalized score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale

    Time frame: baseline, 2, 6, 12 and 24 months

  2. EQ-VAS (EuroQol-visual analogue scales)

    It is a rating scale for assessing the health state of the patient. The scale ranging from 0 (the worst health state) to 100 (the best health state)

    Time frame: baseline, 2, 6, 12, 24 months

  3. EQ-5D (EuroQoL) Current Health Assessment

    It is a reliable tools for assessing quality of life of the patient

    Time frame: baseline, 2, 6, 12, 24 months

  4. Tegner Activity Level Scale

    Survey useful for assessing sport activity of the patient. The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability because of knee problems and 10 represents national or international level soccer.

    Time frame: baseline, 2, 6, 12, 24 months

07

Study locations

1 site
  • Istituto Ortopedico Rizzoli
    Bologna, Italy
08

References and documents

Publications

  • Di Martino A, Di Matteo B, Papio T, Tentoni F, Selleri F, Cenacchi A, Kon E, Filardo G. Platelet-Rich Plasma Versus Hyaluronic Acid Injections for the Treatment of Knee Osteoarthritis: Results at 5 Years of a Double-Blind, Randomized Controlled Trial. Am J Sports Med. 2019 Feb;47(2):347-354. doi: 10.1177/0363546518814532. Epub 2018 Dec 13. PubMed 30545242 ↗
  • Everts PA, Knape JT, Weibrich G, Schonberger JP, Hoffmann J, Overdevest EP, Box HA, van Zundert A. Platelet-rich plasma and platelet gel: a review. J Extra Corpor Technol. 2006 Jun;38(2):174-87. PubMed 16921694 ↗
  • Sanchez AR, Sheridan PJ, Kupp LI. Is platelet-rich plasma the perfect enhancement factor? A current review. Int J Oral Maxillofac Implants. 2003 Jan-Feb;18(1):93-103. PubMed 12608674 ↗
  • Filardo G, Kon E, Pereira Ruiz MT, Vaccaro F, Guitaldi R, Di Martino A, Cenacchi A, Fornasari PM, Marcacci M. Platelet-rich plasma intra-articular injections for cartilage degeneration and osteoarthritis: single- versus double-spinning approach. Knee Surg Sports Traumatol Arthrosc. 2012 Oct;20(10):2082-91. doi: 10.1007/s00167-011-1837-x. Epub 2011 Dec 28. PubMed 22203046 ↗
  • Cavallo C, Filardo G, Mariani E, Kon E, Marcacci M, Pereira Ruiz MT, Facchini A, Grigolo B. Comparison of platelet-rich plasma formulations for cartilage healing: an in vitro study. J Bone Joint Surg Am. 2014 Mar 5;96(5):423-9. doi: 10.2106/JBJS.M.00726. PubMed 24599205 ↗
  • Assirelli E, Filardo G, Mariani E, Kon E, Roffi A, Vaccaro F, Marcacci M, Facchini A, Pulsatelli L. Effect of two different preparations of platelet-rich plasma on synoviocytes. Knee Surg Sports Traumatol Arthrosc. 2015 Sep;23(9):2690-703. doi: 10.1007/s00167-014-3113-3. Epub 2014 Jun 19. PubMed 24942296 ↗
  • Romandini I, Boffa A, Di Martino A, Andriolo L, Cenacchi A, Sangiorgi E, Orazi S, Pizzuti V, Zaffagnini S, Filardo G. Leukocytes Do Not Influence the Safety and Efficacy of Platelet-Rich Plasma Injections for the Treatment of Knee Osteoarthritis: A Double-Blind Randomized Controlled Trial. Am J Sports Med. 2024 Nov;52(13):3212-3222. doi: 10.1177/03635465241283500. Epub 2024 Oct 12. PubMed 39394763 ↗
09

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 Jun 2020 to primary completion in Oct 2024, 51 months.

Of 1,143 non-industry interventional studies with no phase under Osteoarthritis, Knee, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 36. This study's 51 months is above that.

Counting every sponsor, half of 1,285 studies reached it within 18 months; a quarter within 8 and three quarters within 36.

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

Registered
Nov 27, 2019
First posted
Dec 5, 2019
StartActual
Jun 23, 2020
Primary completionActual
Oct 3, 2024
CompletionActual
Oct 3, 2024
Last update
Jan 3, 2025
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 Jan 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04187183
Responsible party
Sponsor
First posted
Dec 5, 2019
Start date
Jun 23, 2020
Primary completion
Oct 3, 2024
Completion
Oct 3, 2024
Last update
Jan 3, 2025

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion