Level l INTRACEPT Study

Demonstrates Highly Significant Results1

Purpose

To compare the effectiveness of the Intracept Procedure to standard care for the treatment of chronic vertebrogenic low back pain.

Study Design

  • Prospective, randomized, multi-center
  • 20 US sites
  • 104 Patients; Randomized to Intracept (51) or standard care (53)
  • Patients were evaluated at baseline and at 3, 6, 9, and 12 months post-treatment
  • Skeletally mature patients with low back pain ≥ 6 months who had not responded to at least 6 months of conservative care
  • All patients had Type 1 or Type 2 Modic changes at up to 4 vertebral bodies (L3-S1)
  • Primary Endpoint: Between-arm comparison of the mean change in ODI from baseline to 3 months post-treatment

Key Findings

Primary Endpoint; Change in ODI at 3 Months

In the Intracept arm, patients reported a 25.3 mean improvement in ODI at 3 months compared to patients reporting a 4.4 mean improvement in the standard care arm. The difference between arms of 20.9 was highly significant.
Mean ODI: baseline to 24 months

Change in VAS at 3 Months

In the Intracept arm, patients reported a 3.46 mean improvement in VAS at 3 months compared to patients reporting a 1.02 mean improvement in the standard care arm. The difference between arms of 2.44 was highly significant.
Mean VAS: baseline to 24 months

ODI Responder Rates – Baseline to 3 months

In the Intracept arm, responder rates at 3 months were highly significant compared to standard care at both ≥ 10-point and ≥ 20-point reduction in ODI.

Percent Mean visual analog scale (VAS) pain score reduction

VAS Responder Rates – Baseline to 3 months

In the Intracept arm, responder rates at 3 months were highly significant compared to standard care at both ≥ 1.5 cm and ≥ 2.0 cm decrease in VAS.

Combined responder rate from baseline to 24 months

Safety Results

There were no device related adverse events. All procedure related adverse events were considered mild and resolved with oral medications.

Conclusion

The Intracept Procedure led to significant improvement of pain and function in patients with chronic vertebrogenic low back pain.