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Spine surgery showdown: which cage helps bones fuse better?

NCT ID NCT06904898

Disease control Sponsor: University of Pennsylvania Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two types of implants used in back surgery for people with worn-out discs in the lower spine. About 60 adults will receive either a PEEK cage with bone-growing protein or a CONDUIT cage during a procedure called DLIF. Researchers will check which cage leads to better bone fusion and patient recovery.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2021

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * • Patients with one to two consecutive level lumbar degenerative disease from L2to S1, including Grade 1 (\<25%) Spondylolisthesis * Patients undergoing direct lateral interbody fusion (transpsoas or anterior-to-psoas approach) for lumbar disease * Skeletally mature patients, aged 18 and older * Patients able to fully comply with the clinical protocol and adhere to the follow-up schedule and protocol requirements * Patients able to understand and sign the study-specific, IRB approved informed consent form Exclusion Criteria: * • Spondylolisthesis greater than Grade 1 * Traumatic lumbar disease * Spinal Deformity * Coronal Cobb angle greater than 40 degrees * Severe sagittal imbalance * Existing fusion construct longer than 2 consecutive levels * Active infection - systemic or local * Tumor diagnosis * Untreated osteoporosis, defined as T Spine \< -2.5 on DEXA scan * Active smoking habit * Current incarceration * Pregnancy * Involvement in an active spinal litigation

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Conditions

The condition(s) this trial relates to.

lumbar disk degenerative disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Lumbar degenerative disease

Contacts and locations

Locations

  • Pennsylvania Hospital

    Philadelphia, Pennsylvania, 19107, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.