Systematic review consulting places a named PhD methodologist inside a review you are already running, at any stage from protocol to peer review. Where our done-for-you service delivers the entire review, a systematic review consultant repairs and completes the specific stages holding yours back: a protocol that will not survive scrutiny, a methods section failing peer review, stalled screening, an unsuitable risk-of-bias tool, or an analysis that needs rebuilding. Every engagement ends in a delivered document, not a recommendation you still have to execute.
Systematic review consulting for reviews that are stuck
A named PhD methodologist joins your review at whatever stage it is in, diagnoses what is wrong, and hands back the corrected protocol, analysis, or methods section as finished work.
4.9 / 5 across 1,194+ delivered projects
- Cochrane and PRISMA 2020 methods
- PhD methodologists
- 100% human-written, no generative AI
- Reproducible R and Stata code
- Free quote within 24 hours
- Mutual NDA on request
A methodologist embedded in your review, not a replacement for it
Most of our clients on this service do not want to hand their review away. It is their question, their author team, and often their thesis or grant deliverable. What they lack is a methodologist who has taken dozens of reviews through peer review and can see, quickly, why this one is stuck. That is the gap this service fills: you keep ownership and authorship of the review, and we supply the methodological muscle at the stages where it is missing. When a team would rather commission the whole project instead, our complete systematic review service is the better fit, and we will say so if your situation points that way.
The consultant you are assigned is a named methodologist, works on your review personally, and stays with it across engagements, so the person who repaired your protocol is the same person who later checks the analysis built on it. Nothing is passed through a pool of anonymous freelancers, and nothing is delegated to someone you have not been introduced to.
Where consulting engagements usually start
Reviews rarely fail everywhere at once; they fail at a stage. These are the six briefs we see most often, and each one maps to a concrete deliverable rather than a conversation. If your situation spans several of them, a single engagement can cover the whole chain from protocol repair through to the resubmitted manuscript.
Protocol rescue and refinement
Your question, eligibility criteria, or planned synthesis do not hold together. We rebuild the protocol so every downstream stage has a defensible foundation, and hand back the corrected document.
Methods sections that fail peer review
Reviewers have flagged the search, the screening, the appraisal, or the pooling. We trace each objection to its root, repair the underlying stage, and rewrite the methods so the fix is visible.
Stalled screening
Thousands of records and a team that has run out of time. We take over title, abstract, and full-text screening against your criteria and return the completed decisions and selection flow.
Choosing and applying risk-of-bias tools
RoB 2, ROBINS-I, or something else entirely. We select the correct instruments for your study designs, run the assessments, and deliver the completed judgements with written justifications.
Responding to journal reviewers on methods
A revise-and-resubmit with methodological objections. We draft the point-by-point response and make the corresponding corrections in the manuscript itself.
Pre-submission verification
The review is nearly finished and you want it checked before it meets reviewers. We audit every stage against PRISMA 2020 and current methodological expectations, correct what fails, and report what we changed.
Two of these deserve a note on timing. Protocol rescue pays for itself many times over because every defect in a protocol compounds through screening, extraction, and analysis, so the earlier it is fixed the less has to be redone. Pre-submission verification works the other way: it is the least expensive engagement on this page precisely because it catches problems while they still cost a correction rather than a rejection, months of resubmission, and a burned journal.
Deliverables, not coaching
The word consulting often implies advice: a call, a memo, a list of suggestions you must then carry out yourself. That is not what this service is. Every engagement is done-for-you and ends in a finished artefact: the corrected protocol, the completed screening decisions, the rebuilt meta-analysis with its code and outputs, the written methods section, the point-by-point reviewer response. We do not run tutoring sessions, coaching programmes, or advisory calls, because a document you can submit is worth more than an hour of talk about one. All scoping and delivery happens in writing, which also gives you a precise record of what was assessed, what was changed, and why.
The statistical side of that promise is carried by our systematic review statistics service, which handles heterogeneity, subgroup and sensitivity analyses, and publication-bias assessment, and the appraisal side by our risk-of-bias assessment service. When an engagement needs an independent second screener to satisfy dual independent review expectations, our second reviewer service supplies one, with the disagreement log journals increasingly ask to see.
How an engagement runs
Because we are joining work that already exists, every engagement begins with a diagnostic assessment rather than a quote from a price list. The diagnosis protects you both ways: you are never charged for repairing stages that are actually sound, and you are never sold a small fix when the defect runs deeper than the symptom you noticed.
- 1
Send the review as it stands
You share the protocol, the search, the screening records, the draft, or whatever exists, together with a short note on where it is stuck and any reviewer comments.
- 2
Diagnostic assessment
The methodologist audits what you sent, identifies exactly which stages are sound and which are defective, and returns a written diagnosis with a fixed quote for the repair.
- 3
The repair is done for you
We produce the corrected deliverables for the agreed stages, keeping you informed in writing and putting every methodological decision to you for approval.
- 4
Handover and verification
You receive the finished documents plus a change log explaining what was altered and why, so the review is stronger and you can defend every decision in it as your own.
Consulting versus the full done-for-you review
The two services share the same methodologists and the same standards; they differ in how much of the review we carry. The table shows where each fits, and moving from one to the other mid-engagement is straightforward if your circumstances change.
| Consideration | Full done-for-you review | Consulting engagement |
|---|---|---|
| Who runs the review | We deliver the entire review end to end | Your team runs it; we repair and complete specific stages |
| Typical starting point | A question and a deadline, nothing yet built | An existing review that is stalled, flawed, or under attack in peer review |
| What you receive | The complete manuscript and every underlying record | Corrected deliverables for the agreed stages, with a change log |
| Best suited to | Teams who want the whole project lifted off their desk | Author teams who keep ownership but need embedded methodological expertise |
What you receive
The package depends on the stages engaged, but every deliverable is a finished, usable document. Reviews stall for predictable reasons, and if you want to sanity-check your own project first, our walkthrough of the steps in a systematic review and our guide to risk-of-bias assessment in practice show what each stage should look like when it is done properly.
- A written diagnostic report on the review as it stands, stage by stage
- Corrected, submission-ready documents for every engaged stage: protocol, search, screening, extraction, appraisal, analysis, or methods section
- Completed risk-of-bias judgements with the tool choice justified in writing
- Rebuilt statistical analyses with code, outputs, and plain-language interpretation
- Point-by-point responses to journal reviewers with the manuscript corrections made
- A change log recording what was altered and why, so the review remains yours to defend
How consulting is scoped and quoted
We quote a fixed fee for the defined piece of work rather than an open-ended hourly arrangement, so the cost is known before the repair begins. The number reflects the genuine load: how many stages are defective, the volume of records or studies involved, whether the analysis must be rebuilt, and how much writing is needed. Send the review in whatever state it is in, together with the deadline and any reviewer comments, and a PhD methodologist will return a diagnosis, a plan, and a fixed quote with no obligation to proceed. If the diagnostic shows the review is fundamentally sound, we say so; a short verification report is a perfectly good outcome, and some engagements end exactly there.
Frequently asked questions
- What does a systematic review consultant do?
- A systematic review consultant is a methodologist who joins an existing review to solve the specific problem holding it back. That can mean rewriting a protocol whose eligibility criteria do not match the question, redesigning a search that missed key databases, unblocking screening that has stalled, selecting and applying the correct risk-of-bias tool, rebuilding a flawed analysis, or drafting the responses when journal reviewers attack the methods. In our practice the consultant produces the corrected document at each stage, so what you receive is finished work you can use, not advice you still have to implement.
- Is it acceptable to get professional help with a systematic review?
- Yes, and it is normal practice in the field. Published systematic reviews routinely engage information specialists for the search, statisticians for the meta-analysis, and second reviewers for screening and extraction, and Cochrane itself expects author teams to draw on methodological support. What matters is that you remain the intellectual owner of the review: you set the question, approve every methodological decision, and take responsibility for the final work. Our consulting is structured exactly that way, with each deliverable handed to you for approval, and how any contribution is described in the paper is entirely your decision.
- Why do systematic reviews fail peer review?
- Methodology is the leading cause. Reviewers reject systematic reviews for questions that are too broad or poorly framed, search strategies that are not reproducible or skip essential databases, screening without documented dual review, missing or superficial risk-of-bias assessment, pooling of studies that are too heterogeneous to combine, and reporting that ignores the PRISMA 2020 checklist. Most of these are repairable without starting over. A methodologist can usually trace the reviewer's objection to a specific defect, fix that stage properly, and rewrite the methods section so the corrected process is visible on the page.
- Which risk of bias tool should I use for my review?
- It depends on the designs of your included studies, and using the wrong instrument is one of the most common reasons methods sections fail. Randomised trials are assessed with RoB 2, non-randomised studies of interventions with ROBINS-I, and other designs have their own validated instruments, such as the Newcastle-Ottawa Scale for cohort and case-control studies or QUADAS-2 for diagnostic accuracy. A review that mixes designs may legitimately need more than one tool. We select the correct instruments for your evidence base, apply them, and write the justification into the methods section.
- Can you take over a systematic review that has stalled?
- Yes. Stalled reviews are one of the most frequent briefs we receive, usually because screening volumes overwhelmed the team, a co-author left, or the analysis stage exposed problems in the earlier stages. We begin with a diagnostic pass over everything done so far, tell you plainly what is salvageable and what must be redone, and then complete the outstanding stages ourselves, whether that is finishing the screening, running the extraction and appraisal, building the analysis, or writing the manuscript. You approve the plan before we touch anything, and the completed stages come back to you as finished deliverables.
- How much does systematic review consulting cost?
- There is no standard rate, because the honest answer depends on what your review needs. Repairing a protocol is a different scale of work from rescreening two thousand records or rebuilding a meta-analysis, so pricing by a generic hourly figure would misrepresent the job. Instead we scope the specific problem first: you send the review as it stands and a note on where it is stuck, a PhD methodologist assesses what the fix genuinely requires, and we return a fixed quote for that defined piece of work. The fee is agreed before anything starts and does not change mid-engagement.
Send us your review as it stands and where it is stuck, and we will return a written diagnosis and a fixed quote for the repair.
Free quote within 24 hours. 100% human-written by PhD methodologists.
Methodology reviewed by
Lead Review Methodologist
Leads protocol design, screening, and reporting across the practice, with a focus on reviews that survive editorial scrutiny.
Why researchers bring in a PhD methodologist
80+
systematic reviews are published every day (Hoffmann et al., 2021)
67.3 weeks
average time to complete a review in-house (Borah et al., BMJ Open 2017)
~70%
of published reviews rate critically low on AMSTAR 2 quality appraisal
4.9 / 5
our client rating across 1,194+ delivered projects
