Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Lumbar Transforaminal Epidural Dexamethasone: A Prospective, Randomized, Double-Blind Clinical Trial
Brief Summary: The aim of this study is to assess the effectiveness and safety of dexamethasone for transforaminal epidural steroid injection. A secondary aim of this study is to obtain data on the lowest most effective dose of dexamethasone for this treatment and the effective duration of effect.


Options:
A: Arm Label: subcutaneous anesthesia group (group A); Type: EXPERIMENTAL; Interventions: Procedure: 1ml of local anesthetics (1% Lidocaine) were injected into the subcutaneous layer., Drug: 1% Lidocaine | Arm Label: muscle anesthesia group (group B); Type: ACTIVE_COMPARATOR; Interventions: Procedure: 1ml of a local anesthetics (1% idocaine) are first injected into the subcutaneous layer, followed by 3~4ml of local anesthetics to the muscle layer along the expected needle pathway., Drug: 1% Lidocaine | Intervention Type: PROCEDURE; Name: 1ml of local anesthetics (1% Lidocaine) were injected into the subcutaneous layer.; Assigned to Arm(s): subcutaneous anesthesia group (group A) | Intervention Type: PROCEDURE; Name: 1ml of a local anesthetics (1% idocaine) are first injected into the subcutaneous layer, followed by 3~4ml of local anesthetics to the muscle layer along the expected needle pathway.; Assigned to Arm(s): muscle anesthesia group (group B) | Intervention Type: DRUG; Name: 1% Lidocaine; Assigned to Arm(s): muscle anesthesia group (group B), subcutaneous anesthesia group (group A)
B: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: etanercept | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Drug: methylprednisolone | Arm Label: 3; Type: PLACEBO_COMPARATOR; Interventions: Drug: normal saline | Intervention Type: DRUG; Name: etanercept; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: methylprednisolone; Assigned to Arm(s): 2 | Intervention Type: DRUG; Name: normal saline; Assigned to Arm(s): 3
C: Arm Label: local anesthetic; Type: ACTIVE_COMPARATOR; Interventions: Drug: Caudal epidural injection | Arm Label: Local anesthetic with generic Celestone; Type: ACTIVE_COMPARATOR; Interventions: Drug: Caudal Epidural Injection with generic Celestone | Arm Label: Local anesthetic with Celestone; Type: ACTIVE_COMPARATOR; Interventions: Drug: Caudal Epidural Injection with Celestone | Arm Label: Local anesthetic with DepoMedrol; Type: ACTIVE_COMPARATOR; Interventions: Drug: Caudal Epidural Injection with DepoMedrol | Intervention Type: DRUG; Name: Caudal epidural injection; Assigned to Arm(s): local anesthetic | Intervention Type: DRUG; Name: Caudal Epidural Injection with generic Celestone; Assigned to Arm(s): Local anesthetic with generic Celestone | Intervention Type: DRUG; Name: Caudal Epidural Injection with Celestone; Assigned to Arm(s): Local anesthetic with Celestone | Intervention Type: DRUG; Name: Caudal Epidural Injection with DepoMedrol; Assigned to Arm(s): Local anesthetic with DepoMedrol
D: Arm Label: DXM 4 mg; Type: EXPERIMENTAL; Interventions: Procedure: Lumbar Transforaminal Epidural Steroid Injection | Arm Label: DXM 8 mg; Type: EXPERIMENTAL; Interventions: Procedure: Lumbar Transforaminal Epidural Steroid Injection | Arm Label: DXM 12 mg; Type: EXPERIMENTAL; Interventions: Procedure: Lumbar Transforaminal Epidural Steroid Injection | Intervention Type: PROCEDURE; Name: Lumbar Transforaminal Epidural Steroid Injection; Assigned to Arm(s): DXM 12 mg, DXM 4 mg, DXM 8 mg

Answer: D