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The OPTIMAL trial: do older adults with kidney transplants benefit from lower doses of anti-rejection tablets?

The OPTIMAL feasibility trial: OPTimising IMmunosuppression for older Adult kidney transpLant recipients

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN14416006
Enrollment
40
Registered
2025-07-09
Start date
2025-04-30
Completion date
Unknown
Last updated
2026-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney transplantation Surgery

Interventions

For the first 3 months following kidney transplantation, participants will be randomised to: Trial arm 1: Mycophenolate mofetil (MMF) 1 g/day OR Trial arm 2: MMF 1.5 g/day Participants in both arms

Sponsors

North Bristol NHS Trust
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to 100 Years

Inclusion criteria

Inclusion criteria: Individuals aged =65 years at the time of deceased-donor kidney only transplantation

Exclusion criteria

Exclusion criteria: 1. Previous severe reaction to MMF 2. Simultaneous dual-organ transplantation (e.g., kidney and pancreas) 3. Individuals lacking the mental capacity to consent to participation 4. Immunologically incompatible transplantation 5. Use of a T-cell depleting induction agent 6. Steroid free, rapid steroid weaning or steroid sparing regimens

Design outcomes

Primary

MeasureTime frame
1. Recruitment: % of those eligible and approached who consent to randomisation at invitation (assessed at invitation/baseline) 2. Adherence: % of participants concordant with allocated treatment and reason for non-concordance (assessed at 3 months) 3. Retention: % of participants who do not withdraw from trial follow-up assessments (assessed at 3 and 6 months)

Secondary

MeasureTime frame
1. Size of the eligible population (n) assessed at screening 2. Acceptability of intervention and trial methods assessed through qualitative interviews at multiple timepoints not pre-specified 3. Barriers and facilitators to intervention implementation in different settings measured by time to green light at each site and time to the recruitment of the first participant. 4. Participant and healthcare professional adherence to the intervention/trial and deviation from treatment allocation assessed through medical records of received medication at 3 months, and through qualitative interviews in parallel to trial delivery at multiple timepoints not pre-specified

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: May 22, 2026