Expires: 19 August, 2027
Clinical Pharmacology and Therapeutics ST4 Interview Questions, structured around the 2026 interview: that’s what this question bank is built for. It covers every part of the two-station format, from the clinical scenario and medical registrar suitability question through to the commitment, presentation and research questions. Written by CPT and GIM registrars who have recently completed the interview process with high scores.
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This question bank reflects the current 2026 CPT ST4 interview format, with content reviewed against the latest published guidance and recent candidate feedback.
Clinical Pharmacology and Therapeutics ST4 is a small, competitive programme recruited nationally through the Physician Higher Specialty Training (PHST) process, with the East of England acting as lead recruiter. The most recent NHS England figures show 16 applications for 8 posts in the 2025 round, a ratio of 2.00. Because CPT is a small-numbers specialty, ratios can swing sharply year on year, but interview performance still decides who is appointed and where they rank for offers.
The interview is delivered online and runs across two stations of roughly 20 minutes each, with four questions of about ten minutes distributed between them, giving around 50 minutes in total including transition time. Each station is scored by its own pair of clinician interviewers. Six areas are assessed in total: each is marked 1-5 by two interviewers, producing twelve scores that sum to a Raw Interview Score out of 60. The Round 1 interview date for the 2026 cycle is 12 March 2026, with an indicative Round 2 on 7 October 2026.
Station 1 opens with a clinical scenario testing acute reasoning across the CPT curriculum and General Internal Medicine, reflecting the dual accreditation. Expect prescribing safety, adverse drug reactions, therapeutic drug monitoring, polypharmacy, and toxicology, alongside acute unselected take reasoning. You’ll then give a one-minute presentation on your acute unselected medical take experience, followed by discussion of managing the medical team as a registrar. Communication is scored as a separate mark across the whole station. The clinical scenario carries the heaviest weighting in this station (x1.6), with registrar suitability (x1.2) and communication (x1.2) close behind.
Station 2 covers your commitment to CPT and a presentation/research/academic question. You give a presentation of up to five minutes on a recent development or research finding relevant to clinical pharmacology and therapeutics, then take clarifying questions and discuss research methodology. Communication is again scored across the station. Suitability and commitment (x1.6) and the presentation/research question (x1.6) both weight heavily; the communication mark here weights x0.8.
To be appointable, candidates are expected to meet the published thresholds: no 1/5 scores, no more than two 2/5 scores across the twelve marks, and a Raw Interview Score of at least 36. Above the threshold, ranking is by total weighted score out of 100 (interview 80, application self-assessment 20). Panels reward safe, structured clinical reasoning grounded in the CPT curriculum, a clear articulation of why CPT and why the dual CPT/GIM pathway, credible readiness for the medical registrar role, and a research or evaluative mindset demonstrated concretely through your presentation.
We’ve built the question bank around the CPT ST4 interview and the domains it actually scores: clinical scenarios drawing on prescribing, pharmacokinetics and toxicology; medical registrar suitability on the acute unselected take; commitment to the specialty across toxicology, medicines safety and therapeutics; and the presentation, research and academic question that sets CPT apart from most physician interviews. Every station is covered comprehensively, with model answers and probing follow-ups mirroring how panels push at ST4 level. The question bank is updated yearly from recent candidate debriefs and written by high-scoring CPT and GIM registrars who sat the interview themselves.
The question bank follows the four scored question areas of the ST4 interview directly, so what you practise maps onto what the panel scores.
The overdose presentations that define the clinical station, worked from assessment through to definitive management: paracetamol overdose and N-acetylcysteine, salicylate poisoning and urinary alkalinisation, tricyclic overdose and sodium bicarbonate, the opioid toxidrome and naloxone titration, acute versus chronic lithium toxicity, and serotonin syndrome.
Drug anaphylaxis and Yellow Card reporting, DRESS and Stevens-Johnson syndrome / toxic epidermal necrolysis, and drug-drug interactions causing clinical harm, each covering recognition, immediate management and how you communicate future avoidance to the patient and to other prescribers.
Warfarin over-anticoagulation and bleeding, INR interpretation and reversal options, DOAC management in the acutely bleeding or peri-procedural patient, and gentamicin and vancomycin level interpretation with dosing adjustment.
Dose adjustment and nephrotoxin avoidance in acute kidney injury, polypharmacy and deprescribing in the frail older person with shared decision-making, and risk-benefit assessment and counselling for prescribing in pregnancy and breastfeeding.
The general medical presentations you face as a dual CPT-GIM registrar, including hypertensive emergency versus urgency and choice of agent, sepsis recognition with empirical prescribing and antimicrobial stewardship, and acute breathlessness covering pulmonary oedema, PE and pneumothorax.
The one-minute presentation on managing the acute unselected take, plus prioritisation and escalation for the deteriorating patient, leading and supervising a junior team, structuring an SBAR handover, discharge planning and MDT working, and managing competing demands and inter-specialty conflict.
Your motivation and the experiences that confirmed the specialty, understanding the clinical pharmacologist’s breadth across poisons, ADRs, TDM, hypertension, medicines policy and dual accreditation, evidence of commitment through relevant clinical experience and society engagement, prescribing audit and quality improvement, teaching, leadership in medicines governance, current challenges facing the specialty, and your career aspirations and resilience.
The five-minute presentation and how to structure it without slides, critical appraisal of drug RCTs, pharmacoepidemiology studies and meta-analyses, core biostatistics from confidence intervals to number needed to harm, trial design from phase I to phase IV, drug licensing and pharmacovigilance, research governance and ethics including Good Clinical Practice and industry conflicts of interest, and applying evidence to prescribing through NICE technology appraisals and formulary work.
Preparation for CPT ST4 needs to reflect an unusual interview: two stations covering four scored questions, plus a communication mark on each station, and two candidate-delivered presentations sitting inside those stations. Generic physician-interview prep won’t cover it. Below is how we recommend working through it.
Before you rehearse anything, get the shape of the interview clear. CPT ST4 is a two-station interview, each station around 20 minutes and scored by its own pair of interviewers. Station 1 pairs a clinical scenario with a medical registrar suitability question, opened by a one-minute presentation on your acute unselected medical take experience. Station 2 pairs a suitability-and-commitment question with a presentation/research/academic question, opened by a five-minute presentation on a recent development or research finding relevant to CPT. A communication mark is scored across each station. Practising without that structure in mind produces answers that are too long, too general and unweighted against the four scored questions plus two communication marks.
Interviewers are scoring two things at once: the content of what you say and how you say it. Strong CPT candidates know the acute medicine well enough to talk through an unselected take confidently and can explain a clinical trial’s design and limitations without notes, but they also structure answers cleanly, signpost, and finish inside time. Build your underlying knowledge (acute medicine, prescribing safety, toxicology, trial methodology, the 2022 CPT curriculum’s Capabilities in Practice) alongside the delivery skills that carry the communication mark.
For Station 1, script and rehearse a tight one-minute summary of your medical take experience (volume, case mix, escalation, leadership of the team), then drill acute clinical scenarios with a registrar-level framing (assessment, prioritisation, delegation, escalation, human factors). For Station 2, choose your five-minute presentation topic early. Pick something you can defend under research questioning: methodology, statistics, limitations, clinical relevance to CPT. Pair this with structured answers on commitment to the specialty, subspecialty interest (toxicology, hypertension, cardiovascular risk, poisons work), BPS engagement and how you’d contribute to the field. Communication is scored across both stations, so practise the same content with and without an examiner nudging you for clarity.
The 20-minute station structure means each of the four scored questions gets roughly 10 minutes, including your presentation where relevant. That is less time than most candidates think. Rehearse with a stopwatch, out loud, ideally with someone playing interviewer and cutting you off when the clock runs. Also rehearse the awkward specifics: reading the room on camera, holding eye contact with the lens, and recovering cleanly when a clarifying question interrupts your presentation flow.
We recommend a preparation window of roughly eight to twelve weeks before your interview date, with the 2026 Round 1 CPT interview on 12 March 2026 and an indicative Round 2 date of 7 October 2026. The bottleneck is rarely knowledge; it’s rehearsing answers to enough different question stems that you stop sounding scripted and start sounding like a registrar.
Reading around the format only takes you so far. Working through structured practice questions that mirror the four CPT scored areas (clinical scenario, medical registrar suitability, suitability and commitment, and presentation/research/academic) is where preparation converts into interview-day performance. Our question bank is built around exactly those four question types plus the two presentation formats, so your practice mirrors what the panel will actually score.
The CPT ST4 interview is a two-station format, each station around 20 minutes, giving roughly 50 minutes overall. Station 1 covers a clinical scenario and a medical registrar suitability question (with a short presentation on your acute unselected take experience). Station 2 covers suitability and commitment to the specialty and a research/academic presentation. Communication is scored across both stations.
NHS England published 16 applications for 8 posts in 2025, a ratio of 2.00, which sits well below the medical specialty average. Post numbers are small, though, so a favourable ratio doesn’t remove the need for a strong performance on the day.
Expect a clinical scenario drawn from toxicology, prescribing safety and acute unselected medicine, a medical registrar suitability question with a short presentation on your take experience, a suitability and commitment question rooted in CPT (toxicology, prescribing safety, trials, cardiovascular risk), and a five-minute presentation on a recent development or research finding relevant to clinical pharmacology, followed by discussion.
Yes. It’s built around the two-station structure used for CPT ST4 and covers every assessed area: clinical scenarios, medical registrar suitability, the acute take presentation, suitability and commitment to CPT, and the research/academic presentation with follow-up discussion. Communication practice is embedded throughout, since it’s scored across each station.
We recommend starting around eight to twelve weeks before your interview date. The 2026 Round 1 interview is scheduled for 12 March 2026, with Round 2 indicatively on 7 October 2026. That runway gives you time to prepare the acute take and research presentations, refine your commitment-to-specialty narrative, and complete several timed practice cycles across both stations.
Most candidates prepare by reading broadly around pharmacology and hoping their preparation fits the format. Strong candidates prepare differently. They rehearse against the exact stations, timings and assessment domains the CPT ST4 panel actually scores, until structured, evidence-led answers become instinctive.
Expires: 19 August, 2027