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SP-102

Phase 3

Lumbosacral Radicular Pain | Small molecule | Pain |Scilex Holding Company|Last Updated: May 12, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials3
Total Enrollment1,175

FDA Designations

FAST_TRACK

Clinical trial landscape

SP-102 · 3 trials · 1 indication

Phase 3 2Phase 2 1
NCT07579351Corticosteroid Lumbar Epidural Analgesia for Radicular Pain 2Lumbosacral Radicular Pain
NOT YET_RECRUITING755 Analytics
NCT03372161Corticosteroid Lumbar Epidural Analgesia for RadiculopathyLumbosacral Radicular Pain
COMPLETED401 Analytics
PHASE3NOT YET_RECRUITING
Corticosteroid Lumbar Epidural Analgesia for Radicular Pain 2
Lumbosacral Radicular PainUnlock trial analytics
PHASE3COMPLETED
Corticosteroid Lumbar Epidural Analgesia for Radiculopathy
Lumbosacral Radicular PainUnlock trial analytics

Study Endpoints

Primary Endpoints

Mean change from baseline to W4 in the mean NPRS average daily pain score.
Day 1 to week 4

The Numeric Pain Rating Scale (NPRS) is a self-reported scale assessing average pain intensity over the past 24 hours in the affected leg. Possible scores range from 0-10 (0 is no pain, 10 is worst pain imaginable) Change from baseline (mean of the scores recorded on the 7 days \[D-7 to D-1\] immediately prior to the P1 Injection Day) in mean NPRS average daily pain score in the affected leg over 4 weeks (i.e., W1, W2, W3, W4) for SP-102 versus placebo.

Mean Change From Baseline (Day 1) to Week 4 in the Mean Numeric Pain Rating Scale (NPRS) Average Pain Score in the Affected Leg
Baseline, 4 Weeks

The NPRS is an 11-point scale (0 to 10-point scale where 0 was no pain and 10 was worst pain imaginable) that allowed the subject to rate the severity of their pain intensity at various points in time.

Change in Plasma Cortisol Concentrations From Baseline
12 Weeks

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in plasma cortisol levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Change in Blood Glucose Levels From Baseline
12 Weeks

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in blood glucose levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Change in White Blood Cell (WBC) Levels From Baseline
12 Weeks

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in WBC levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Secondary Endpoints

Mean change in ODI total score
Day 1 to Week 4
Patient Global Impression of Change
Day 1 to week 4
Mean change in BPI-Pain Interference (BPI-PI) score from P1 Baseline (D1) to P1 W4 for SP-102 versus placebo.
Day 1 to week 4
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SP-102EXPERIMENTAL -
Placebo ComparatorPLACEBO_COMPARATOR -
dexamethasone sodium phosphateACTIVE_COMPARATOR -
PlaceboPLACEBO_COMPARATORPlacebo

Interventions

NameTypeDescription
SP-102DRUGOne Injection
PlaceboDRUGOne injection
Dexamethasone Sodium Phosphate 10 MG/MLDRUGOne injection
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: Main Inclusion Criteria: * Able and willing to read, write, and understand the English language and provide English language written informed consent prior to beginning any study procedures. * Age 18 to 75 years (inclusive) at the Screening Visit. * A diagnosis of lumbosacral r...

Countries:United States
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Frequently asked questions about SP-102

What is SP-102 used for?

SP-102 is an investigational small molecule being developed for the treatment of lumbosacral radicular pain, a type of nerve-related pain in the lower back and legs. It is currently in Phase 3 clinical development and has received Fast Track designation from the FDA.

What does SP-102 target?

SP-102 is a small molecule corticosteroid. It is administered via epidural injection to reduce inflammation and pain associated with lumbosacral radicular pain. The drug is designed to deliver targeted relief to the affected nerve roots in the lumbar and sacral spine.

Who is developing SP-102?

SP-102 is being developed by Scilex Holding Company, a biopharmaceutical company focused on pain management. Scilex is publicly traded under the ticker symbol SCLX.

What phase is SP-102 in?

SP-102 is currently in Phase 3 clinical development. It has completed two earlier trials, including a Phase 3 study and a Phase 2 study, and a second Phase 3 trial is planned but has not yet started recruiting participants.

What clinical trials is SP-102 in?

SP-102 has been studied in three clinical trials. The completed Phase 3 trial (NCT03372161) enrolled 401 patients, and a Phase 2 trial (NCT03613662) enrolled 19 patients. A new Phase 3 trial (NCT07579351) is planned with an enrollment target of 755 patients.

Is SP-102 FDA approved?

SP-102 is not FDA approved. It is an investigational drug currently in Phase 3 clinical development. The FDA has granted it Fast Track designation, which is intended to expedite the development and review of drugs that treat serious conditions and address unmet medical needs.