An interventional study of Conventional injection and Pulsed radiofrequency (PRF) in Chronic Pain and Sacroiliitis, sponsored by National Cancer Institute, Egypt. Not yet recruiting. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-07-16.
Sponsored by National Cancer Institute, Egypt · Not applicable, Interventional, and Treatment
Therapeutic options for SIJ pain include intra-articular corticosteroid injections, which provide symptomatic relief but typically require repeated administration due to variable and short-lived efficacy.
More recently, pulsed radiofrequency (PRF) has been investigated for joint pain management through intra-articular electrode placement and stimulation. However, its effectiveness in treating SIJ pain remains insufficiently studied and warrants further exploration.
3,227 studies on the registry are indexed under Chronic Pain; 729 are open to participants now.
This study's planned enrollment of 80 is above the median of 60 across 2,388 interventional studies indexed under Chronic Pain.
Browse Chronic Pain studies →National Cancer Institute, Egypt is the lead sponsor of 133 studies on the registry; 29 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion Criteria:
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.
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.
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.
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
INR, PT and aPTT (clotting tests)
Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.
Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Particulate steroid injection in SIJ
Procedure: Conventional injection
Pulsed radiofrequency of SIJ
Procedure: Pulsed radiofrequency (PRF)
Sacroiliac joint (SIJ) steroid injection
PRF of Sacroiliac Joint (SIJ)
Numeric rating score (NRs) reduction
Numeric rating score (NRs) reduction of pain scores after 1 month
Time frame: 1 month
No study locations are listed for this record.
Start is estimated for Jul 2026; primary completion for Aug 2027, 13 months later.
Of 1,295 non-industry interventional studies with no phase under Chronic Pain, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 39. This study's planned 13 months is below that.
Counting every sponsor, half of 1,378 studies reached it within 20 months; a quarter within 9 and three quarters within 38.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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National Cancer Institute, Egypt →