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Conditioned Open-label Placebos to Facilitate Opioid Reduction in Patients With Chronic Non-cancer Pain (ROM)

C

Cosima Locher

Status

Enrolling

Conditions

Chronic Non-cancer Pain

Treatments

Other: P-Dragees blue Lichtenstein, Placebo dragees
Other: Control group (EM)

Study type

Interventional

Funder types

Other

Identifiers

NCT06350786
ROM Study
PZ00P1_201972 (Other Grant/Funding Number)

Details and patient eligibility

About

This study aims to evaluate whether the reduction of the daily morphine equivalent dose (MED) in patients with chronic non-cancer pain (CNCP) can be decreased with an open-label placebo (OLP) intervention in comparison to an electronic monitoring (EM) control group. The participants will receive the intervention (OPL or EM) over the duration of six weeks. Diverse psychological and health measures will be assessed with questionnaires over the course of the intervention. Furthermore, evaluation outcomes, qualitative outcomes and safety outcomes will be assessed. It is hypothesized that the OLP-intervention group in comparison to the EM-control group will have a significantly lower consumption of MED over the course of the study. Furthermore, this study aims to evaluate whether the OLP intervention can reduce opioid withdrawal symptoms in comparison to the control group.

Full description

CNCP is a major global health problem and is often treated with opiod medication, although risks outweigh the benefits. Therefore, recent studies suggest that an open-label placebo (OLP) treatment, the placebo treatment with full disclosure of being a placebo, has proven to be an effective, clinically relevant, and evidence-based treatment in CNCP syndromes. Furthermore, a new line of research indicated that OLPs have been shown to be feasible for the reduction of active medication in opioid use disorder. In line with the conditioning paradigm, the drug as the unconditioned stimulus is paired with the neutral stimulus of an OLP in a learning phase. Then, the OLP alone becomes a conditioned stimulus.

Enrollment

86 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Signed Informed Consent
  • ≥ 18 years of age
  • German speaking
  • Chronic non-cancer pain ≥ 6 months in duration
  • Chronic opioid medication for > 3 months
  • Oral intake of opioid medication
  • Motivation for opioid reduction
  • Participants have a primary treating physician who performs the reduction of the opioid medication
  • Having access to a computer or tablet with an email-account

Exclusion criteria

  • Having psychotic symptoms
  • Suicidality
  • Cognitive impairment to everyday life
  • Planned surgery within the next two months
  • Known illegal drug or harmful alcohol consumption
  • Intolerance of the ingredients of the placebo pill (e.g., lactose, sucrose, corn-starch)
  • Serious health problems that make study participation impossible
  • Simultaneous participation in other studies with investigational drugs or CNCP specific interventions

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

86 participants in 2 patient groups

Open-Label Placebo
Experimental group
Description:
The intervention involves administering "P-Dragees blue Lichtenstein," blue placebo pills devoid of active ingredients. Each pill contains lactose monohydrate; magnesium stearate (Ph. Eur.); microcrystalline cellulose; sucrose; glucose syrup; corn-starch; highly dispersed silicon dioxide; white clay; macrogol glycerol hydroxy stearate (Ph. Eur.); Gum arabic; montanglycol wax; povidone (K 25); talcum; titanium dioxide (E 171); calcium carbonate; macrogol 6000; patent blue V; aluminium salt (E 131). Participants will be informed that the pills are placebos and will be instructed to pair them with opioid medication for 7 days. After 7 days until the end of the study they will be instructed to continue to pair their opioid medication with an OLP pill and take additionally placebo pills on the basis of their need. An evidence-based rationale will be provided, explaining why the placebo treatment is deemed effective for pain. This rationale will precede the OLP intake procedure.
Treatment:
Other: P-Dragees blue Lichtenstein, Placebo dragees
Electronic monitoring (EM) control group
Other group
Description:
EM is a method to objectively measure adherence and serves as the primary intervention component on the basis of which adherence trajectories will be discussed. The participants in the EM control group will receive an evidence-based rational designed to foster positive expectations and will be instructed on the mechanisms of EM. The EM control group is structurally equivalent to the OLP group referring to the number and duration of contacts between participants and the study team members as well as to the format of the intervention and the quality of the interaction.
Treatment:
Other: Control group (EM)

Trial contacts and locations

1

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Central trial contact

Cosima Locher, PhD; Kiara Bodonyi, MSc

Data sourced from clinicaltrials.gov

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