This article gives you a quick orientation to the Filter overlay and how it shapes your table. You’ll pick a Search type to surface the most relevant, built-in filters; combine them in the Applied Filters pane (AND by default) and use groups to precisely control AND/OR logic. It also summarizes the main filter patterns lists, dates, and text/keywords and how to gauge impact with the result counter and light edits, so you can zero in on exactly the dataset you need.

When you click on "Open Filter Menu", an overlay appears with three panes.

Let's orient you to this view.

The left pane: it lists all available filters and includes a “Search type” picker that lets you choose what each row in your table represents. You can build your table around Drug Title, Drug Trial, Company, Indication, Target, Mechanism, or Documents.

Once you pick a row type, you’ll see a tailored set of inbuilt Maven Bio filters designed for that item- each search type displays the filters that are most relevant to it.

Within any filter, you’ll encounter a few common patterns.

Some filters are list-based and let you include or exclude items by checking the desired options. For example, under “Global Status,” you can check any number of statuses to include or, conversely, mark ones to exclude; by picking "Include" or "Exclude" in the operator options.

Date-aware filters like 'Completion Date', 'Modification Date' etc. let you set “equals,” “before,” or “after” conditions - intended for any field that stores dates.

You’ll also find text/keyword filters that offer operators like “contains,” “equals”, “does not contain” , "ends with" or "begins with" In these, you type the value you want the system to match.

For instance, in “Exclusion Criteria Summary,” entering 'Completed palliative radiotherapy within 7 days' will return rows whose exclusion criteria summaries include those words.

When you’re ready, click “Add filter” to apply each of your chosen filters.

The right pane, Applied Filters, lists every filter you've selected by clicking 'Add Filter'; they appear with AND between them by default.

You can add as many filters as you need, and click “Calculate Result Count” at any time to preview the approximate number of rows that will match the selected filters.

To revise a filter, click its card: it turns yellow and the middle pane shows its current settings and you can then adjust it as desired.

Click the × on a filter card to remove just that filter; click the × on a group to remove the entire group and everything inside it.

Use the icon next to the ×  to ungroup the filters.

To control logic, use “Add Group” (at the top of the left pane) when you want certain filters to work together. You can drag and drop filter cards into a group, or drag one filter on top of another to create a new group. You can also drag and drop the filters outside the group to ungroup them.

Inside a group, you can change the joiners between filters from AND to OR as needed.

Important: if you have no groups, switching one AND to OR converts all joiners to OR; if you only want to change the relationship between specific filters, first group those filters together. You can also drag groups (and filters within them) to reorganize your logic.

Example 1: Range with grouping: say you want Phase 3 trials for a specific indication that completed between January 2021 and January 2024.

Add (Phase = III) and your Indication filter. Then add two date filters on Completion date, one after January 1, 2021 and one before January 31, 2024. Group those two date filters with AND so they act as a single “between” range. Ensure that date group is combined with Phase and Indication using AND. Click “Calculate Result Count” to confirm you’re in the right ballpark before running the full query.

If a change doesn’t seem to apply, double-check that you clicked “Add Filter” after editing, and that you’re toggling AND/OR inside the correct group.

At this point your logic reads:

Musculoskeletal Disorder AND Phase 3 AND ( completed before January 2024 OR completed after January 2021).

Example 2: Find interventional Cardiovascular trials with randomized allocation, double-blind or triple-blind masking, conducted in the United States or France

Set the “Search type” to “Drug Trial” so each row represents a trial.

Now add your first constraints: open “Therapeutic Areas,” select “Cardiovascular disease,” and click “Add Filter.” Then add “Study Type = Interventional,” These appear in Applied Filters joined by AND, which is what we want.

For masking, don’t select “Double” and “Triple” inside a single “Masking” filter because multi-select behaves as AND, that would require a trial to be both, which is impossible.

Instead, add two separate filters: first add “Masking = Double,” then add “Masking = Triple.” In Applied Filters, group just these two masking filters together (drag one onto the other, or select them and use “Add Group”)

Then toggle the joiner inside the group to OR. You now have (Masking = Double OR Masking = Triple), while everything outside the group still joins with AND.

Apply geography the same way. Since list selections also use AND, add two separate “Countries includes” filters - one for “United States” and one for “France.” Group those two country filters and set the joiner inside that group to OR. This yields (Countries includes United States OR Countries includes France) without affecting the other filters.

At this point your logic reads:
​Cardiovascular disease AND Interventional AND Randomized AND (Double OR Triple) AND (United States OR France).

As you configure filters in the left pane and add them, your selections are applied to the table so you can quickly narrow results to what you need. You can combine multiple filters, mix list selections with date conditions, and refine further with text operators until the table reflects exactly the dataset you want. If a filter doesn’t behave as expected, double-check the operator (e.g., “contains” vs. “equals”) and confirm that you clicked “Add filter” after making your selections.