Comparing intrathecal morphine and intravenous methadone for pain relief after surgery for testicular cancer

Randomized Prospective Study Comparing Intrathecal Morphine vs Intravenous Methadone for Postoperative Analgesia Following Retroperitoneal Lymph Node Dissection (RPLND)

Phase 3 Interventional Indiana University · NCT06593665

This study is testing whether pain relief after testicular cancer surgery is better with intrathecal morphine or intravenous methadone to help patients feel more comfortable and use less medication.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment142 (estimated)
Ages18 Years to 80 Years
SexMale
SponsorIndiana University Academic / other
Drugs / interventionschemotherapy
Locations2 sites (Indianapolis, Indiana and 1 other locations)
Trial IDNCT06593665 on ClinicalTrials.gov

What this trial studies

This study aims to compare the effectiveness of intrathecal morphine versus intravenous methadone for managing postoperative pain in patients undergoing retroperitoneal lymph node dissection for primary testicular cancer. It is a single-blinded, prospective, randomized control trial that will assess pain relief and opioid consumption in the first 24 hours after surgery. Participants will receive either intrathecal morphine or intravenous methadone, along with standard multimodal analgesia and local anesthesia infiltration. The goal is to determine which method provides better analgesia and reduces opioid use.

Who should consider this trial

Good fit: Ideal candidates are male patients aged 18 to 80 years undergoing their first retroperitoneal lymph node dissection for primary testicular cancer.

Not a fit: Patients with contraindications for neuraxial analgesia or those with a history of substance abuse in the past 6 months may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients undergoing surgery for testicular cancer.

How similar studies have performed: Previous studies have shown varying success with similar approaches, but this specific comparison of intrathecal morphine and intravenous methadone is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients undergoing a virgin (chemotherapy has not been used) or post- chemotherapy retroperitoneal lymph node dissection for primary testicular cancer at IU Health AAHC
* ASA Class 1, 2, 3
* Age 18 to 80 years; Male
* BMI less than 50kg/m2

Exclusion Criteria:

* Any contraindication for neuraxial analgesia
* Patient on home methadone at any dose
* Any physical, mental or medical conditions which, in the opinion of the investigators, may confound quantifying postoperative pain resulting from surgery.
* Known true allergy to the study medications (morphine, bupivacaine, acetaminophen, methadone)
* Any history of substance abuse in the past 6 months which would include heroin or any other illegal street drugs
* End stage liver disease, end stage renal disease
* Patient staying intubated after surgery
* Patient (home dose) taking more than 30mg PO morphine equivalent (PME) per day
* Any additional surgical procedures to the patient with a different surgical incision compared to the standard laparotomy for the RPLND procedure, i.e. thoracic tumor reduction

Where this trial is running

Indianapolis, Indiana and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Testicular Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.